JP2012087575A - Cylinder lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cylinder lock capable of being easily locked without using a key, substantially improving handleability and reducing mistakes of a locking operation.SOLUTION: The cylinder lock includes: an outer cylinder 5; an inner cylinder 6 disposed turnably relative to the outer cylinder 5 on the inner side of the outer cylinder 5; an engaging member 6b slidable between a regulating position for regulating the turning in at least one direction of the inner cylinder 6 and an allowing position for allowing the turning of the inner cylinder 6; and an operation part for turning the inner cylinder 6. Also, the inner cylinder 6 is turned by performing a first operation and a second operation different from the first operation to the operation part, and the engaging member 6b is slid from the regulating position to the allowing position against energizing force imparted to itself by reaction received from the outer cylinder 5 in association with the turning in one direction of the inner cylinder 6 by the operation part and is then restored from the allowing position to the regulating position by the energizing force to regulate the turning in the direction opposite to the one direction of the inner cylinder 6.

Description

  The present invention relates to a cylinder lock, and is particularly suitable for a cylinder lock such as a pin tumbler type or a disk tumbler type which is applied as a lock for a desk drawer, cabinet, locker or the like.

  Nowadays, from the viewpoint of preventing information leakage, the drawer of a desk (desk) used in business of a company or the like and the locking of a cabinet or a locker have been strictly managed. On the other hand, the use of a key (key) in unlocking and unlocking a desk, cabinet, locker, etc. every time a document is used has a problem that is one of the causes of reducing work efficiency.

  Therefore, in recent years, a cylinder that can be locked and unlocked without using a key by using a key and a number key (number lock) and using a password registered in advance for this number key. Locks have been widely known (see, for example, Patent Document 1).

  In such a number lock with a cylinder lock of Patent Document 1, a slope portion (inclination) that inclines toward the inner cylinder side from the recess at the unlocking position on the inner peripheral surface of the outer cylinder facing the inner cylinder to the recess at the locking position. Part). As a result, in this number lock with cylinder lock, the cylinder lock can be turned from the unlocked position to the locked position by a driver or the like without using a predetermined key, and the cylinder lock is returned to the normal position (in other words, (Restoring from a forced unlocked state to a normal locked state) is possible.

  In addition, as a technique for providing an inclination on the inner peripheral surface of the outer cylinder facing the inner cylinder, there is, for example, Patent Document 2. In Patent Document 2, a disc tumbler type cylinder lock in which a pair of concave portions that function as locking / unlocking positions is provided on the upper and lower sides (or right and left) of the inner peripheral surface of the outer cylinder. A cylinder lock is disclosed in which a recessed portion having an inclined portion inclined toward the inner cylinder side from the unlocking direction toward the locking direction is disclosed at a position between the recess and the recess adjacent to the recess. At this time, the concave portion is provided with an inclined portion on the concave side that is the locking position, while the concave side that is the unlocking position opposite to this is perpendicular to the outer cylinder side from the outer cylinder side toward the inner cylinder side. A wall is provided.

  And in this cylinder lock, the concave portion having the inclined portion as described above is provided on the way from the locked state to the unlocked state (that is, on the way to rotate the inner cylinder from one concave portion to the other concave portion). When the disc tumbler is unlocked by so-called picking, the disc tumbler falls (enters) into the recessed portion along the inclined portion, and then contacts the wall portion to rotate further in the unlocking direction. It cannot be moved. Since it is difficult to consider further unlocking by picking from this state, unauthorized unlocking by picking can be prevented.

JP 2009-121163 A Japanese Patent No. 4202465

  By the way, in the number lock with cylinder lock described in Patent Document 1 described above, the cylinder lock can be locked and unlocked without using the key by inputting the personal identification number, and the trouble of carrying the key is eliminated. The effect which can be done is produced. On the other hand, however, from the viewpoint of security protection in recent years, an easy number (in other words, a serial number (for example, 1234 in the case of 4 digits) or the same number is continuously used (for example, 4 digits). 1111), birthday (birth date), telephone number, etc.) as a personal identification number, it is difficult for a third party to easily decode (that is, set) It is recommended to set a PIN using a number that is difficult to remember (unfamiliar) for the person. Therefore, in this case, in such a number lock with a cylinder lock, it is necessary to set a password using a number that is difficult to memorize, and in addition, this password is stored because it is necessary to use it at the time of unlocking. There was a problem that had to be avoided, and there were insufficient problems in terms of usability.

  In addition, in the cylinder lock described in Patent Document 2 described above, when unauthorized unlocking such as picking is performed, the disc tumbler falls into the recessed portion (entry) in the middle of switching from the locked state to the unlocked state, Further, the inner cylinder is prevented from rotating to the unlocked state so that the rotation is prevented. In this case, the inner cylinder is locked from the position of the recessed portion in the middle between the locked state and the unlocked state. Up to the position of the state, the inner cylinder is rotated (for example, using a coin or the like) without using a key, and the locked state can be maintained. However, a key is necessary for normal locking and unlocking.

  Therefore, the present invention has been made in view of the above-described problems, and can be easily locked without using a key, can greatly improve the usability, and reduce errors in locking operation. An object of the present invention is to provide a cylinder lock that can be used.

  The present invention includes an outer cylinder, an inner cylinder disposed inside the outer cylinder so as to be rotatable with respect to the outer cylinder, a restriction position for restricting rotation of the inner cylinder in at least one direction, An engagement member slidable between a permissible position allowing rotation of the inner cylinder, and an operation unit for rotating the inner cylinder, the inner cylinder is The engagement member is rotated by performing a first operation and a second operation different from the first operation, and the engagement member is rotated in one direction by the operation portion in the one direction. After sliding from the restricting position to the allowable position against the urging force applied to itself by a reaction force received from the outer cylinder, the urging force returns from the allowable position to the restricting position by the urging force. The cylinder lock is characterized by restricting rotation in a direction opposite to the one direction.

  The present invention also includes an outer cylinder, an inner cylinder disposed inside the outer cylinder so as to be rotatable with respect to the outer cylinder, and a restriction position that restricts rotation of the inner cylinder in at least one direction. An engaging member that is slidable between a permissible position allowing rotation of the inner cylinder, and an operation portion for rotating the inner cylinder, wherein the inner cylinder is relative to the operation portion. Then, the first operation and the second operation different from the first operation are rotated, and the engagement member is disposed at different positions. The first engaging member is against the urging force applied to itself by the force received from the inner cylinder as the inner cylinder is rotated in one direction by the operating portion. The second engagement member is moved by the biasing force applied to itself after being slid from the restriction position to the allowable position. The first direction of the inner cylinder to return to the regulating position from the allowable position Te is a cylinder lock, characterized in that to regulate the reverse rotation.

  The present invention also includes an outer cylinder, an inner cylinder disposed inside the outer cylinder so as to be rotatable with respect to the outer cylinder, and a restriction position that restricts rotation of the inner cylinder in at least one direction. An engaging member that is slidable between a permissible position allowing rotation of the inner cylinder, and an operation portion for rotating the inner cylinder, wherein the inner cylinder is relative to the operation portion. The engagement member is rotated by performing a first operation and a second operation different from the first operation, and the engagement member is opposed to a biasing force applied to itself by a force received from the outside. As the inner cylinder is rotated in one direction by the operation unit, the biasing force applied to the inner cylinder returns to the restricting position from the allowable position to the one direction of the inner cylinder. Is a cylinder lock that restricts rotation in the reverse direction.

  According to the cylinder lock according to the present invention, it is possible to easily lock without using a key, the usability can be remarkably improved, and errors in the locking operation can be reduced.

It is the external appearance perspective view which showed the lock apparatus which attached the cylinder lock which concerns on this embodiment. It is the external appearance perspective view which extracted and showed only the cylinder lock from the lock apparatus. It is a sectional side view of a cylinder lock. It is sectional drawing which follows the XX line in FIG. 3, and is the figure which showed typically the motion of the inner cylinder with respect to an outer cylinder, and a pin tumbler. It is a sectional side view of the cylinder lock concerning the modification 1. It is a sectional side view of the cylinder lock concerning the modification 2. It is a sectional side view of the cylinder lock concerning the modification 3. It is a sectional side view of the cylinder lock concerning the modification 4.

  Hereinafter, the cylinder lock 3 according to the present embodiment will be described in detail with reference to the drawings.

  <Lock device>

  FIG. 1 is an external perspective view showing a lock apparatus 1 to which a cylinder lock 3 according to this embodiment is attached.

  The lock device 1 is used for a cabinet, a locker or the like (not shown) in an office, a handle 2 as a gripping part for opening and closing the door of the cabinet or the locker, and a cylinder incorporated in a part of the handle 2 And a lock 3.

  <Cylinder lock>

  FIG. 2 is an external perspective view showing only the cylinder lock 3 extracted from the lock device 1.

  As shown in the figure, the cylinder lock 3 includes a punching portion 4 for preventing the opening of a door such as a cabinet or a locker, and a cylinder portion 7 for rotating the pulling portion 4.

  The yoke 4 is engaged with a main body such as a cabinet or a locker to prevent the door of the cabinet or the locker from being opened, and the engagement between the main body such as the cabinet or the locker is released. It is comprised so that rotation between the unlocking positions which permit opening | release of doors, such as, is possible.

  The cylinder lock 3 includes a substantially cylindrical outer cylinder 5 and a substantially cylindrical inner cylinder 6 that is coaxially disposed inside the outer cylinder 5. In the case of this embodiment, the outer end 6 a of the inner cylinder 6 is provided with a knob portion 8 integrally with a key hole 6 b for inserting a key for locking and unlocking the cylinder lock 3. However, the present invention is not limited to this.

  <Motion of inner cylinder and pin tumbler>

  FIG. 3 is a side sectional view of the cylinder lock 3 in the longitudinal direction. FIG. 4 is a cross-sectional view taken along line XX in FIG. 3, schematically showing the movement of the inner cylinder 6 and the pin tumbler 6 b with respect to the outer cylinder 5.

  As shown in FIG. 3, a knob portion 8 is attached to one end side (the left side in FIG. 3) of the inner cylinder 6 of the cylinder lock 3 via a spring 11, and the knob portion 8, the inner cylinder 6, There is a predetermined distance between them. Further, two engagement recesses 6 a that open toward the knob portion 8 are formed on the end face on one end side of the inner cylinder 6, and the knob portion 8 corresponds to the engagement recess 6 a of the inner cylinder 6. Two engaging convex portions 8a having an outer diameter slightly smaller than the inner diameter of the engaging concave portion 6a are formed so as to protrude.

  With such a structure, in the cylinder lock 3, in order to rotate the inner cylinder 6 around the axis, the knob portion 8 is pushed toward the inner cylinder 6 against the urging force of the spring 11, thereby The engaging portion 8a and the engaging recess 6a of the inner cylinder 6 are engaged with each other, and the knob portion 8 is rotated around the axis while continuing the "pressing operation". At least two operations of “rotating operation” in which the inner cylinder 6 is rotated around the axis via the shaft 8 are necessary.

  The inner cylinder 6 includes a plurality of pin tumblers 6 b and a plurality of springs 6 c for urging each of the plurality of pin tumblers 6 b toward the outer cylinder 5. Further, as shown in FIGS. 4A to 4C, the pin tumbler 6b can be fitted into the pin tumbler 6b of the inner cylinder 6 (can enter and exit). A first recess 5a and a second recess 5b are formed. In addition, the opening part in which the key which is not shown in figure is inserted is formed in the center part of the pin tumbler 6b, and the cylinder lock 3 inserts the suitable key in the opening part of the several pin tumbler 6b, The pin tumbler 6b and the outer cylinder 5 are configured so that all shear lines are aligned (so that the inner cylinder 6 can be rotated with respect to the outer cylinder 5). Both operations are possible.

  FIG. 4A is a cross-sectional view of the cylinder lock 3 when the cylinder lock 3 is in the unlocked state (when the unillustrated pulling portion 4 is in the above-described unlocked position). When the cylinder lock 3 is in the unlocked state, the pin tumbler 6b of the inner cylinder 6 is urged toward the outer cylinder 5 by the spring 6c, and its tip is fitted in the first recess 5a of the outer cylinder 5. (The state in which the shear lines by the inner cylinder 6 and the outer cylinder 5 are not aligned). At this time, since the inner surface 5c of the first recess 5a of the outer cylinder 5 is a vertical surface, the surface 6d of the tip portion of the pin tumbler 6b facing this is rounded, so the inner cylinder 6 Is rotated in the clockwise direction in the drawing, the pin tumbler 6b is slid in the direction of retreating from the first recess 5a by the reaction force received from the outer cylinder 5, and the inner cylinder 6 is in a rotatable state, that is, in a locked state. Migration is possible.

  FIG. 2B is a cross-sectional view of the cylinder lock 3 in the middle of the transition of the cylinder lock 3 from the unlocked state to the locked state. When the cylinder lock 3 is in the unlocked state shown in FIG. 5A, if the above-described “push-in operation” and “rotation operation” are performed by the knob portion 8, the inner cylinder 6 rotates in conjunction with the knob portion 8. The pin tumbler 6b of the inner cylinder 6 is moved and pushed down against the urging force of the spring 6c under the reaction force from the outer cylinder 5. As a result, the shear lines of the inner cylinder 6 and the outer cylinder 5 are aligned. However, it can be rotated from the unlocked position shown in FIG. 5A to the locked position shown in FIG.

  FIG. 3C is a cross-sectional view of the cylinder lock 3 when the cylinder lock 3 is in the locked state (when the unillustrated pulling portion 4 is in the above-described locking position). When the cylinder lock 3 is in the locked state, the pin tumbler 6b of the inner cylinder 6 is urged toward the outer cylinder 5 by the spring 6c, and is engaged with the second recess 5b of the outer cylinder 5 (entered state). It has become. At this time, while the inner surface 5d of the second recess 5b of the outer cylinder 5 is a vertical surface, the tip surface 6e of the pin tumbler 6b opposite to the inner surface 5d is also a vertical surface. Unless the shear lines of the plurality of pin tumblers 6b of the inner cylinder 6 are all aligned by inserting a key suitable for the inner cylinder 6, the inner cylinder 6 cannot be rotated counterclockwise in FIG. It has become.

  <Modification 1>

  Next, the cylinder lock 20 according to the first modification will be described with reference to FIG. 5 is a side sectional view of the cylinder lock 20 and corresponds to FIG. Moreover, the same code | symbol is attached | subjected about the part same as the above-mentioned cylinder lock 3, and the description is abbreviate | omitted.

  In the cylinder lock 3 described above, the inner cylinder 6 and the knob portion 8 of the cylinder lock 3 are separated from each other. However, in the cylinder lock 20 according to the first modification, the inner cylinder 22 and the knob portion 24 are always rotated integrally. It is configured.

  On the other hand, the inner peripheral surface of the outer cylinder 23 is formed with two engagement recesses 23a that open toward the knob portion 24, and the knob portion 24 corresponds to the engagement recess 23a of the outer cylinder 23. The upper and lower movable pins 24a that can be engaged with the engaging recess 23a and protrude toward the outer cylinder 23 side by a spring 24b are provided.

  With such a structure, in the cylinder lock 20, in order to rotate the inner cylinder 22 around the axis, the two movable pins 24a of the knob portion 24 are pressed against the urging force of the spring 24b, and the knob portion The “push-in operation” in which the 24 movable pins 24 a are retracted from the engagement recesses 23 a of the outer cylinder 23, and the knob part 24 is rotated while the “push-in operation” is continued. The “rotation operation” for rotating the 22 around the axis requires two operations.

  In addition, the structure as an operation part of the knob part 8, the inner cylinder 6, and the outer cylinder 5 of the said cylinder lock 3, and the structure as an operation part of the knob part 24 and the outer cylinder 23 which concern on this modification 1 are the deformation | transformation mentioned later. It is also possible to apply to the operation part of the cylinder locks 30, 40, 50 of Examples 2-4.

  <Modification 2>

  Next, the cylinder lock 30 according to the second modification will be described with reference to FIG. FIG. 6 is a side sectional view of the cylinder lock 30 according to the second modification, and corresponds to FIG. 4 described above. Moreover, the same code | symbol is attached | subjected about the part same as the above-mentioned cylinder lock 3, and the description is abbreviate | omitted.

  The inner cylinder 31 of the cylinder lock 30 includes a pin tumbler 31a accommodated in the inner cylinder 31 so as to be slidable in the longitudinal direction.

  The outer cylinder 32 is formed with a first recess 32a and a second recess 32b into which the pin tumbler 31a can be fitted with respect to one pin tumbler 31a of the inner cylinder 31, respectively. The first concave portion 32a of the outer cylinder is provided with a first movable pin 32c that is urged toward the inner cylinder 31 by a spring 32d and is slidable in the longitudinal direction, and the second concave portion 32b of the outer cylinder. The second movable pin 32e that is urged toward the inner cylinder 31 by the spring 32f and is slidable in the longitudinal direction is disposed. Moreover, while the front-end | tip part of the 1st movable pin 32c is shape | molded hemispherical, the front-end | tip part of the 2nd movable pin 32e is shape | molded planarly.

  FIG. 6A is a cross-sectional view of the cylinder lock 30 when the cylinder lock 30 is in the unlocked state. When the cylinder lock 30 is in the unlocked state, the first movable pin 32c of the outer cylinder 32 pushes down the pin tumbler 31a of the inner cylinder 31 to the inner cylinder 31 side, and its distal end fits into the recess of the inner cylinder 31. The combined state (the state in which the shear lines of the inner cylinder 31 and the outer cylinder 32 are not aligned) is obtained.

  FIG. 2B is a cross-sectional view of the cylinder lock 30 in the middle of the transition from the unlocked state to the locked state. When the cylinder lock 30 is in the unlocked state shown in FIG. 5A, if the above-described “push-in operation” and “rotation operation” are performed by the knob portion, the inner cylinder 31 rotates in conjunction with the knob portion. start. At this time, since the tip end portion of the first movable pin 32c of the outer cylinder 32 is formed in a hemispherical shape, the first movable pin 32c of the outer cylinder 32 receives the force from the inner cylinder 31 and acts as a biasing force of the spring 32d. The inner cylinder 31 and the outer cylinder 32 are aligned so that the shear line is aligned, and the inner cylinder 31 can be rotated from the unlocked position shown in FIG. 5A to the locked position shown in FIG. .

  FIG. 3C is a cross-sectional view of the cylinder lock 30 when the cylinder lock 30 is in a locked state. When the cylinder lock 30 is in the locked state, the second movable pin 32e of the outer cylinder 32 pushes down the pin tumbler 31a of the inner cylinder 31 to the inner cylinder 31 side, and its tip is fitted into the recess of the inner cylinder 31. Since the inner cylinder 31 and the outer cylinder 32 are not aligned with the shear line, the second movable pin 32e having a flat tip portion projects toward the inner cylinder 31. Therefore, the second movable pin 32e cannot be pushed down toward the outer cylinder 32. Therefore, when the inner cylinder 31 is in the locked position, the inner cylinder 31 is connected to the outer cylinder 32 unless all the shear lines of the plurality of pin tumblers of the inner cylinder 31 are aligned by inserting a key that fits the cylinder 30. On the other hand, it cannot be rotated from the locking position shown in FIG. 5C to the unlocking position shown in FIG.

  <Modification 3>

  Next, a cylinder lock 40 according to Modification 3 will be described with reference to FIG. FIG. 7 is a side sectional view of the cylinder lock 40 according to the third modification, and corresponds to FIG. 4 described above. Moreover, the same code | symbol is attached | subjected about the part same as the above-mentioned cylinder lock 3, and the description is abbreviate | omitted.

  The inner cylinder 41 of the cylinder lock 40 includes a pin tumbler 41a accommodated in the inner cylinder 41 so as to be slidable in the longitudinal direction. Further, a notch 41b is formed on one side of the upper edge of the recess in which the pin tumbler 41a is accommodated.

  The outer cylinder 42 is formed with a first recess 42a and a second recess 42b into which the pin tumbler 41a can be fitted with respect to one pin tumbler 41a of the inner cylinder 41, respectively. The first concave portion 42a of the outer cylinder is provided with a first movable pin 42c that is urged toward the inner cylinder 41 by a spring 42d and is slidable in the longitudinal direction, and is provided in the second concave portion 42b of the outer cylinder. Is provided with a second movable pin 42e that is urged toward the inner cylinder 41 by a spring 42f and is slidable in the longitudinal direction.

  FIG. 7A is a cross-sectional view of the cylinder lock 40 when the cylinder lock 40 is in the unlocked state. When the cylinder lock 40 is in the unlocked state, the first movable pin 42c of the outer cylinder 42 pushes down the pin tumbler 41a of the inner cylinder 41 to the inner cylinder 41 side, and its tip is fitted in the recess of the inner cylinder 41. It is in a combined state (a state where shear lines are not aligned). However, since a notch 41b is formed in a part of the recess in which the pin tumbler 41a of the inner cylinder 41 is accommodated, the inner cylinder 41 is moved from the unlocked position shown in FIG. When the first movable pin 42c of the outer cylinder 42 is pushed down to the outer cylinder 42 side by the inner cylinder 41, the inner cylinder 41 is shown in FIG. ) Can be rotated to the locked position shown in FIG.

  FIG. 4B is a cross-sectional view of the cylinder lock 40 in the middle of the transition of the cylinder lock 40 from the unlocked state to the locked state. If the inner cylinder 41 is rotated while the cylinder lock 40 is in the unlocked state of FIG. 5A, the first movable pin 42c of the outer cylinder 42 is pushed down toward the outer cylinder 42 by the inner cylinder 41. Since the shear lines are aligned, it can be rotated from the unlocked position shown in FIG. 5A to the locked position shown in FIG.

  FIG. 3C is a cross-sectional view of the cylinder lock 40 when the cylinder lock 40 is in the locked state. When the cylinder lock 40 is in the locked state, the second movable pin 42e of the outer cylinder 42 pushes down the pin tumbler 41a of the inner cylinder 41 to the inner cylinder 41 side, and its tip is fitted in the recess of the inner cylinder 41 (The state where the shear lines are not aligned). Therefore, when the inner cylinder 41 is in the locked position, the second movable pin 42e having a flat tip portion protrudes toward the inner cylinder 41 and pushes the second movable pin 42e down to the inner cylinder 41. Therefore, unless the shear lines of the plurality of pin tumblers of the inner cylinder 41 are all aligned by inserting a key that fits the cylinder 40, the inner cylinder 41 is the same as the outer cylinder 42. It is not possible to rotate from the locking position shown in Fig. (C) to the unlocking position shown in Fig. (A).

  <Modification 4>

  Next, a cylinder lock 50 according to Modification 4 will be described with reference to FIG. FIG. 8 is a side sectional view of the cylinder lock 50 according to the modified example 4, and corresponds to FIG. Moreover, the same code | symbol is attached | subjected about the part same as the above-mentioned cylinder lock 3, and the description is abbreviate | omitted.

  The inner cylinder 51 of the cylinder lock 50 includes a pin tumbler 51a that can slide in the longitudinal direction, and a spring 51b that biases the pin tumbler 51a toward the outer cylinder 52.

  The outer cylinder 52 is formed with a first recess 52a and a second recess 52b into which the pin tumbler 51a can be fitted with respect to one pin tumbler 51a of the inner cylinder 51, respectively. A first movable pin 52c that is urged toward the inner cylinder 51 by a spring 52d and is slidable in the longitudinal direction is disposed in the first recess 52a of the outer cylinder. Further, the urging force of the spring 51b and the spring 52d is held so that the tip of the pin tumbler 51a of the inner cylinder 51 is aligned with the shear line (so that the pin tumbler 51a does not hinder the rotation of the inner cylinder 51). ) Is set.

  FIG. 8A is a cross-sectional view of the cylinder lock 50 when the cylinder lock 50 is in the unlocked state. When the cylinder lock 50 is in the unlocked state, the tip end portion of the pin tumbler 51a of the inner cylinder 51 is in a state aligned with the shear line. For this reason, the inner cylinder 51 can be rotated with respect to the outer cylinder 52 to the locking position shown in FIG.

  FIG. 5B is a cross-sectional view of the cylinder lock 50 in the middle of the transition from the unlocked state to the locked state, and FIG. 5C shows the cylinder lock when the cylinder lock 50 is in the locked state. FIG. When the cylinder lock 50 is in the locked state, the pin tumbler 51a of the inner cylinder 51 is fitted into the second recess 52b of the outer cylinder 52 (a state where the shear lines are not aligned). At this time, since the inner cylinder 51 cannot be rotated counterclockwise, when the inner cylinder 51 is in the locked position, the shear lines of the plurality of pin tumblers of the inner cylinder 51 are inserted by inserting a key suitable for the cylinder 50. Unless all are aligned, the inner cylinder 51 cannot rotate with respect to the outer cylinder 52 from the locking position shown in FIG. 5C to the unlocking position shown in FIG.

  As described above, the cylinder lock (for example, the cylinder lock 3) according to the above embodiment is arranged on the outer cylinder (for example, the outer cylinder 5) and inside the outer cylinder so as to be rotatable with respect to the outer cylinder. A provided inner cylinder (for example, the inner cylinder 6), a restriction position (for example, a position shown in FIGS. 4A and 4C) for restricting rotation of the inner cylinder in at least one direction, and the inner cylinder An engaging member (for example, a pin tumbler 6b) that can slide between a permissible position (for example, the position shown in FIG. 4B) that allows the rotation of the inner cylinder, and an operation unit for rotating the inner cylinder (E.g., a knob portion 8), and the inner cylinder has a first operation (e.g., a pushing operation) and a second operation (e.g., a first operation) different from the first operation with respect to the operation portion. The engaging member is rotated in one direction of the inner cylinder by the operating portion. Along with the movement, after sliding from the restricting position to the allowable position against the urging force applied to itself by the reaction force received from the outer cylinder, the urging force returns from the allowable position to the restricting position. The cylinder lock is characterized by restricting the rotation of the inner cylinder in the direction opposite to the one direction (see, for example, FIG. 4C).

  Moreover, the cylinder lock (for example, cylinder lock 30) which concerns on the said embodiment is an outer cylinder (for example, outer cylinder 32, and the inner cylinder arrange | positioned inside the said outer cylinder so that rotation with respect to the said outer cylinder is possible. (For example, the inner cylinder 31) and a restriction position for restricting the rotation of the inner cylinder in at least one direction (for example, the position of the first movable pin 32c shown in FIG. 6A, the first shown in FIG. 6C). 2) and a permissible position (for example, the position of the first movable pin 32c and the second movable pin 32e shown in FIG. 6B) that allows the inner cylinder to rotate. Engaging members (for example, the first movable pin 32c and the second movable pin 32e) and an operation portion (for example, a knob portion 24) for rotating the inner cylinder, The first operation (for example, push-in operation) is different from the first operation on the operation unit. The first engaging member (for example, the first movable pin 32c) and the engaging member disposed at different positions are rotated by performing a second operation (for example, a rotating operation). A force that the second engaging member (for example, the second movable pin 32e) receives from the inner cylinder as the inner cylinder is rotated in one direction by the operation portion. After the second engagement member is slid from the restriction position to the permissible position against the urging force applied to the second engagement member, the second engagement member returns from the permissible position to the restriction position by the urging force applied to the second engagement member. Then, the cylinder lock is characterized by restricting the rotation of the inner cylinder in the direction opposite to the one direction (see, for example, FIG. 6C).

  The cylinder lock (for example, the cylinder lock 50) according to the above-described embodiment includes an outer cylinder (for example, the outer cylinder 52) and an inner cylinder that is disposed inside the outer cylinder so as to be rotatable with respect to the outer cylinder. A cylinder (for example, the inner cylinder 51), a restricting position (for example, a position shown in FIG. 8C) for restricting rotation of the inner cylinder in at least one direction, and an allowable position for allowing rotation of the inner cylinder An engaging member (for example, a pin tumbler 51a) that can slide between (for example, the positions shown in FIGS. 8B and 8C) and an operation unit (for example, a knob) for rotating the inner cylinder Part 8), and the inner cylinder has a first operation (for example, push-in operation) and a second operation (for example, a rotation operation) different from the first operation with respect to the operation unit. The engaging member is applied to itself by a force received from the outside. The inner cylinder is held at the allowable position against the force, and is returned from the allowable position to the restricting position by the biasing force applied to the inner cylinder as the inner cylinder is rotated in one direction by the operation unit. The cylinder lock is characterized by restricting the rotation in the direction opposite to the one direction (see, for example, FIG. 8C).

  According to the cylinder lock according to the above-described embodiment, the cylinder lock can be changed from the unlocked state to the locked state simply by rotating the inner cylinder. Therefore, the cylinder lock can be easily locked without using a key. Usability can be improved significantly. On the other hand, in order to rotate the inner cylinder and bring the cylinder lock into the locked state, it is necessary to perform at least two operations using the operation unit. Thus, it is possible to reliably reduce errors in the locking operation that would cause locking.

  Further, the inner cylinder may be rotated by performing the second operation while continuing the first operation after performing the first operation on the operation unit. .

  With such a configuration, it is possible to more reliably reduce an error in the locking operation such that the operation unit is inadvertently touched and is locked unexpectedly.

  Although the present invention has been described in detail with reference to the embodiments, the specific configuration is not limited to these embodiments, and design changes and the like within the scope of the present invention are also included in the scope of the present invention. Is.

  The present invention can be widely used as various cylinder locks such as a lever tumbler cylinder lock and a pin tumbler cylinder lock used for locking and unlocking lockers and cabinets.

3, 20, 30, 40, 50 Cylinder lock 4 Pull-out part 5, 23, 32, 42, 52 Outer cylinder 6, 22, 31, 41, 51 Inner cylinder 6b Pin tumbler 8, 24 Knob part 6c, 11 Spring

Claims (4)

An outer cylinder,
An inner cylinder disposed inside the outer cylinder so as to be rotatable with respect to the outer cylinder;
An engagement member that is slidable between a restriction position that restricts rotation of the inner cylinder in at least one direction and an allowable position that permits rotation of the inner cylinder;
An operation unit for rotating the inner cylinder,
The inner cylinder is
The operation unit is rotated by performing a first operation and a second operation different from the first operation,
The engaging member is
As the inner cylinder is turned in one direction by the operation unit, the attachment is slid from the restriction position to the permissible position against the urging force applied to itself by the reaction force received from the outer cylinder. A cylinder lock characterized by restricting the rotation of the inner cylinder in a direction opposite to the one direction by returning from the allowable position to the restricting position by force. An outer cylinder,
An inner cylinder disposed inside the outer cylinder so as to be rotatable with respect to the outer cylinder;
An engagement member that is slidable between a restriction position that restricts rotation of the inner cylinder in at least one direction and an allowable position that permits rotation of the inner cylinder;
An operation unit for rotating the inner cylinder,
The inner cylinder is
The operation unit is rotated by performing a first operation and a second operation different from the first operation,
The engaging member is
A first engagement member and a second engagement member disposed at different positions;
As the inner cylinder is rotated in one direction by the operation portion, the first engaging member is moved from the restricting position to the permissible position against a biasing force applied to the first engaging member by a force received from the inner cylinder. The second engaging member returns to the restricting position from the allowable position by the biasing force applied to the second engaging member and restricts the rotation of the inner cylinder in the direction opposite to the one direction. Cylinder lock characterized by An outer cylinder,
An inner cylinder disposed inside the outer cylinder so as to be rotatable with respect to the outer cylinder;
An engagement member that is slidable between a restriction position that restricts rotation of the inner cylinder in at least one direction and an allowable position that permits rotation of the inner cylinder;
An operation unit for rotating the inner cylinder,
The inner cylinder is
The operation unit is rotated by performing a first operation and a second operation different from the first operation,
The engaging member is
The permissible position is held at the permissible position against a biasing force applied to itself by a force received from the outside, and the permissible position is applied by a biasing force applied to the inner cylinder as the operation unit rotates in one direction. A cylinder lock characterized by restricting the rotation of the inner cylinder in the direction opposite to the one direction by returning to the restricting position from the position. In any one of Claims 1-3,
The inner cylinder is
A cylinder lock that is rotated by performing the second operation while continuing the first operation after performing the first operation on the operation unit.

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