JP2010065457A - Lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lock device capable of remarkably increasing the number of combination kinds of keys in the lock device, particularly the horseshoe-shaped lock device for a bicycle. <P>SOLUTION: The lock device comprises a casing, a bolt piece, a locking member for maintaining a locked state, and a key piece for unlocking by moving the locking member. The lock device comprises a first key combination formed of a combination of a recessed part formed near a key piece insertion hole of a locking member storage part and a lower face projecting part provided in a downward direction of the key piece so as to correspond to the recessed part, a second key combination formed of a combination of a slotted part 28 formed with an upper casing 20 facing upward and an upper face projecting part 37 provided to project in an upward direction of the key piece 13 so as to correspond to the slotted part 28, and a third key combination formed of a combination of a protrusion projected into the locking member storage part and a recess provided at the key piece so as to correspond to the protrusion. Unlocking is performed when these key combinations are placed in an unlockable state. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lock device, and more particularly to a lock device suitable for a horseshoe shape for a bicycle.

  Conventionally, a lock device suitable for a lock device, particularly a horseshoe shape for a bicycle, is known as shown in Patent Document 1.

  This device includes a casing, a hook piece slidably arranged on the casing, a locking member that keeps a locked state by locking the hook piece, and an unlocking by moving the locking member. A key piece to be housed, and the casing includes a locking member storage portion having a key piece insertion hole into which the locking member is stored and the key piece is inserted, and the locking member storage is received from the key piece insertion hole. A horseshoe-shaped lock device that is unlocked by operating the key piece inserted into the part, causing the key piece to move the locking member, and releasing the locking between the collar piece and the locking member. The key combination is a combination of a protrusion protruding inside the locking member storage portion and a recess provided in the key piece corresponding to the protrusion, and the protrusion and the recess It can be unlocked when the positions match. It was.

  As described above, the conventional bicycle lock device uses only one type of key combination due to size and manufacturing limitations, and thus has a limitation in increasing the types of keys.

No. 7-22457

  An object of the present invention is to provide a lock device, particularly a horseshoe-shaped lock device for a bicycle, which can dramatically increase the number of types of key combinations.

The invention according to claim 1 of the present application includes a casing, a flange piece slidably arranged on the casing, a locking member that holds the locking state by locking the flange piece, and the locking member. A key piece that is unlocked by moving the key member, and the casing includes a locking member storage portion that stores the locking member and has a key piece insertion hole for inserting the key piece, the key piece insertion hole By operating the key piece inserted into the locking member storage portion from above, the key piece moves the locking member and unlocks the hook piece and the locking member to unlock the key piece. In the lock device, the first and third key combinations are provided, and the first key combination includes a recessed portion formed in the vicinity of the key piece insertion hole of the locking member storage portion, and the recessed portion. Correspondingly in combination with the convex part provided in the vertical direction of the key piece The third key combination includes a protrusion protruding inside the locking member storage portion, and a protrusion that protrudes into the locking member storage portion when the positions of the concave portion and the convex portion coincide with each other. Corresponding to the dent portion provided in the key piece, and for the key piece that is permitted to be inserted by matching the first key combination, the positions of the protrusion and the dent portion coincide. Providing a lock device that is unlocked when both of the first and third key combinations are unlockable. To do.
In the invention according to claim 2 of the present application, the first key combination is such that the key piece is inserted to a position where the third key combination is possible by matching the positions of the concave portion and the convex portion. The third key combination is a key piece that is allowed to be inserted by matching the first key combination, so that the position of the protrusion matches the position of the recess. The unlocking device according to claim 1, wherein the lock device is unlocked by allowing the movement to release the lock.
The invention according to claim 3 of the present application is characterized in that the casing includes a horseshoe-shaped lower casing in which a mounting bracket for a bicycle body is provided on the lower surface side, and an upper casing that covers the upper surface side of the horseshoe-shaped lower casing, The concave portion of the first key combination is formed by recessing the lower casing from the upper surface side to the lower surface side, and the convex portion of the first key combination is the key piece from the upper surface side to the lower surface side. The key combination is changed by changing the position of the convex part and the concave part in the lateral direction, and the protrusion of the third key combination is formed by projecting the lower casing from the lower surface side to the upper surface side. The recessed portion of the third key combination is formed by recessing the key piece in the lateral direction, and the position of the protrusion and the recessed portion is changed back and forth. Changing direction Providing lock apparatus according to claim 2, characterized in that to change more key combinations.
In the invention according to claim 4 of the present application, the concave portion of the first key combination includes a longitudinal groove that allows the convex portion of the key piece to move in the front-rear direction, and the convex portion of the key piece in the lateral direction. The lock device according to claim 3, further comprising a lateral groove that allows movement of the lock.

  The present invention is in a lock device, particularly a horseshoe-shaped lock device for bicycles, and makes it possible to dramatically increase the number of types of key combinations. In particular, in the inventions of claims 3 and 4, it is possible to dramatically increase the number of types of key combinations through production management similar to the case of key combinations of only one conventional set. is there.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a horseshoe-shaped lock device 11 according to an embodiment of the present invention is configured to rotate a casing 12, a collar piece 15 disposed in the casing 12, and the collar piece 15 in the locking direction. And a lock member 14 for locking the collar piece 15 in the unlocked position against the urging force of the spring 16 and a key piece 13.

  The casing 12 has a substantially horseshoe shape. In this embodiment, the casing 12 is composed of an upper casing 20 (shown in FIG. 3) and a lower casing 21, so that the flange piece 15 and the like can be accommodated therein. Further, the interior is composed of a right-side piece storage portion 22 and a left-side locking member storage portion 23, and the lower surface of the bottom piece storage portion 22 and the locking member storage portion 23 is defined by a lower casing 21. The upper surface of the hook piece storage portion 22 and the locking member storage portion 23 is constituted by the upper casing 20.

  The scissors storage part 22 has a ring shape and stores the scissors 15. Also, a rod outlet hole 24 is opened on the left front side of the rod storage part 22, and a rod inlet hole 25 is opened on the right front side.

  On the other hand, the locking member storage portion 23 is formed so as to communicate with the flange storage portion 22 and stores the locking member 14. A key piece insertion hole 26 for inserting the key piece 13 is formed on the rear side of the locking member storage portion 23. The key piece 13 inserted from the key piece insertion hole 26 is inserted between the lower surface of the locking member storage portion 23 and the locking member 14. The key piece 13 is unlocked by being inserted in the key piece insertion hole 26 forward (downward in the figure) and then moved in the lateral direction.

  Specifically, a shaft 27 is formed in the locking member storage portion 23, and a bearing recess 31 that receives the shaft 27 is provided in the key piece 13, and the shaft 27 abuts the back of the bearing recess 31. Thus, the insertion in the distal direction is stopped. When the operator moves the proximal end side of the key piece 13 that is not inserted in a direction approaching the collar piece storage portion 22 (right direction in the drawing), the key piece 13 rotates about the shaft 27, The front end side of the key piece 13 moves in a direction away from the collar piece storage portion 22 (left direction in the figure). By this movement, the operating portion 32 of the key piece 13 abuts on the operated portion 41 of the locking member 14, and the locking member 14 moves together with the key piece 13 to lock the hook piece 15. 42 is disengaged, and the flange 15 is rotated to the unlocked position by the force of the spring 16 to open the lock.

It is the first key combination and the second key combination that allow the key piece 13 to be inserted to a position where it abuts against the shaft 27.
The first key combination is a recess formed in the vicinity of the key piece insertion hole 26 of the locking member storage portion 23 (hereinafter referred to as a recess portion 51), and projects downward from the key piece 13 corresponding to the recess portion 51. In combination with the lower surface convex portion 33 provided so as to allow the key piece 13 to move to a position where it comes into contact with the shaft 27 by matching the positions of the recessed portion 51 and the lower surface convex portion 33. .
The second key combination includes a concave portion (hereinafter referred to as a cut portion 28) formed with the upper casing 20 constituting the periphery (upper edge) of the key piece insertion hole 26 of the locking member storage portion 23 facing upward. It is a combination with the upper surface convex part 37 provided so as to protrude upward from the key piece 13 corresponding to the cut part 28, and the key piece is obtained by matching the positions of the cut part 28 and the upper surface convex part 37. 13 is allowed to move to a position where it contacts the shaft 27.
In the figure, the lower surface convex portion 33 and the recessed portion 51 of the first key combination are shown in FIGS. 5C and 6A, and the upper surface convex portion 37 and the notch portion 28 of the second key combination are shown in FIG. As shown in FIG. 6D and FIG. 6B, both may be provided on the front and back of one key piece. That is, the lower surface convex portion 33 and the upper surface convex portion 37 may be provided by projecting both the upper surface side and the lower surface side of one key piece 13 in the thickness direction. You may make it provide only. When it is provided only on one surface and not on the other surface, the other surface is allowed to be unlocked. In other words, for one of the first key combination and the second key combination, a fully open combination is selected.

  The lower surface convex portion 33 and the upper surface convex portion 37 are provided at an intermediate position in the front-rear direction of the key piece 13. In detail, it is provided between the bearing recessed part 31 provided in the key piece 13, and the operation part 34 provided in the base end for a person to operate. The lower surface convex portion 33 is a point-like protrusion in which the key piece 13 protrudes from the upper surface side to the lower surface side, and the upper surface convex portion 37 is a point-like protrusion in which the key piece 13 protrudes from the lower surface side to the upper surface side. Yes, the key combination is changed by changing the respective convex portions in the horizontal direction (left-right direction in the figure). For example, if the key piece 13 has a width of about 1 cm, 4 to 6 positions can be selectively formed. In FIG. 2, four positions are shown as “37 (33)”. In the implementation, it is not impossible to provide a plurality, but usually only one is provided.

The first key combination will be described in more detail. As shown in FIGS. 4 (A) and 4 (B), the recessed portion 51 formed to receive the lower surface convex portion 33 has a locking member storage portion. A first groove portion 52 that is formed by denting the lower surface of the lower casing 21 constituting the lower portion 23 downward, and allows the lower surface convex portion 33 of the key piece 13 to move in the front-rear direction, and a first groove portion The second groove part 53 provided continuously from 52 is provided. The second groove 53 allows the bottom surface protrusion 33 of the key piece 13 to move in the lateral direction. Until the key piece 13 is inserted in the front end direction (forward direction) and the back of the bearing concave portion 31 contacts the shaft 27, the lower surface convex portion 33 moves downward in the first groove portion 52. And by operating the operation part 34 of the key piece 13 in the horizontal direction, the lower surface convex part 33 moves the second groove part 53 in the horizontal direction.
On the other hand, in the second key combination, the upper casing 20 that constitutes the peripheral position (upper edge) of the key piece insertion hole 26 of the locking member storage portion 23 and the position of the upper surface convex portion 37 in the left-right direction above A key combination is determined by selectively providing a horizontal position of the cut portion 28 formed toward the left and right in a plurality of locations. The key piece 13 is inserted between the locking member 14 and the lower casing 21. At this time, the rear portion (side near the key piece insertion hole 26) of the locking member 14 is bent upward to obtain the key. It is also desirable to prevent interference between the upper surface protrusion 37 provided on the piece 13 and the locking member 14. In this example, the cut portion 28 is provided in the upper casing 20 as the second key combination. However, the upper casing 20 is not involved in the key combination, and the engaging member 14 has an unevenness corresponding to the upper surface protrusion 37. May be provided to form the second key combination.

  The third key combination determines whether or not the key piece 13 permitted to be inserted by the first and second key combinations is moved in the horizontal direction. This third key combination is a combination of a protrusion 54 protruding upward from the lower surface inside the locking member housing 23 and a recess 35 provided in the key piece 13 corresponding to the protrusion 54. When the positions of the projection 54 and the recessed portion 35 coincide with each other, the operation portion 34 can be operated in the lateral direction. As a result, when a person operates the key piece 13 in the lateral direction (right direction in the figure), the tip side of the key piece 13 moves in a direction away from the collar piece storage portion 22 (left direction in the figure), and the locking member 14 is moved. It is moved to bring the hook 15 into the unlocked state as described above.

  In this example, the protrusion 54 is formed by projecting the lower casing 21 upward from the lower surface side, and the recess 35 of the key piece 13 is formed by the front extending portion 36 (the bearing recess 31 of the bearing recess 31). The portion on the front side from the back is formed by cutting in the lateral direction (width direction) or the like so as to be recessed. More specifically, in a state in which the key piece 13 is inserted into the key piece insertion hole 26, the front extending portion 36 is arranged closer to the side closer to the collar piece storage portion 22 than the recessed portion 51 (right side in the drawing). The key piece 13 is formed with a recessed portion 35 in a direction (right direction in the drawing) approaching the flange piece storage portion 22. Then, when the positions of the protrusions 54 and the recessed portions 35 coincide with each other, the forward extending portion 36 moves in a direction away from the flange storage portion 22 (left direction in the drawing), thereby realizing the unlocked state described above. . A plurality of key combinations are realized by changing the positions of the protrusions 54 and the recessed portions 35 to a plurality of positions in the front-rear direction. 4A and 5B, a plurality of positions where the protrusion 54 and the recessed portion 35 can be changed are illustrated.

  In this example, by providing the protrusion 54 on the lower casing 21, it is possible to provide both the recess 51 of the first key combination and the protrusion 54 of the third key combination on the lower casing 21. Therefore, as for the management of the key combination, the two key combinations can be managed simultaneously by managing the combination of the lower casing 21 and the key piece 13, and only the management of the upper casing 20 is sufficient. Therefore, it is only necessary to manage substantially the same as the conventional key combination management.

Although the structure of this lock has irregularities formed on the casing, a structure having a similar structure may be formed separately from the casing as a lock member, and this lock member may be incorporated in the casing. It can also be applied to locks other than bicycle locks.
As described above, in this lock device, the number obtained by multiplying the number of combinations of the first key combination by the number of combinations of the third key combination is the number of key combinations. The number of combinations can be increased, and the security of the key can be improved.

It is the top view which removed the upper casing of the locksmith apparatus concerning embodiment of this invention. It is a principal part enlarged view of the locking member storage part and key piece of the device before the lock. It is a longitudinal cross-sectional view of the locking member storage part of the device before the lock. (A) is the principal part enlarged view of the latching member accommodating part of the apparatus before the lock, (B) is the BB cut | disconnection end view, (C) is the CC line cut | disconnection end view. . (A) is a plan view of the locking member of the device before the lock, (B) is a plan view of the key piece, (C) is a side view of the key piece, and (D) is a key of another example. It is a side view of a piece. (A) is a side view which shows the key piece key piece insertion hole of the latching member accommodating part of the apparatus before lock, (B) is a side view which shows the key piece key piece insertion hole of another example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Lock apparatus 12 Casing 13 Key piece 14 Locking member 15 Hook piece 16 Spring 20 Upper casing 21 Lower casing 22 Hook piece storage part 23 Locking member storage part 26 Key piece key piece insertion hole 28 Cut part 33 Lower surface convex part 34 Operation Part 35 Recessed part 37 Upper surface convex part 51 Recessed part 52 First groove part 53 Second groove part 54 Projection

Claims (4)

A casing, a hook piece slidably arranged on the casing, a locking member that keeps the locked state by locking the hook piece, and a key piece that is unlocked by moving the locking member; The casing includes a locking member storage portion that stores the locking member and has a key piece insertion hole for inserting the key piece,
By operating the key piece inserted into the locking member storage portion from the key piece insertion hole, the key piece moves the locking member to release the locking between the hook piece and the locking member. In the lock device that is unlocked by
Comprising three key combinations of first, second and third,
The first key combination and the second key combination are provided in a recessed portion formed in the vicinity of the key piece insertion hole of the locking member storage portion and in the vertical direction of the key piece corresponding to the recessed portion. Is a combination with the raised convex portion, and the unlocked state is made possible by matching the positions of the concave portion and the convex portion,
The third key combination is a combination of a protrusion protruding inside the locking member storage portion and a recess provided in the key piece corresponding to the protrusion, and the first key combination For the key piece that is allowed to be inserted by matching, the unlocking state is achieved by matching the positions of the protrusion and the recess,
A lock device that is unlocked when these key combinations become unlockable. The first and second key combinations allow the key piece to be inserted to a position where the third key combination is possible by matching the positions of the concave and convex portions.
The third key combination is a movement to release the lock of the key piece by matching the positions of the protrusion and the recessed portion with respect to the key piece that is permitted to be inserted due to the coincidence of the first key combination. The lock device according to claim 1, wherein the lock device is unlocked by allowing The casing includes a horseshoe-shaped lower casing in which a mounting bracket for a bicycle body is provided on the lower surface side, and an upper casing that covers the upper surface side of the horseshoe-shaped lower casing,
The concave portion of the first key combination is formed by recessing the lower casing from the upper surface side to the lower surface side, and the convex portion of the first key combination is the key piece from the upper surface side to the lower surface side. The key combination is changed by changing the position of the convex portion and the concave portion in the horizontal direction or not by forming the convex portion.
The concave part of the second key combination is formed by denting the peripheral part of the key piece insertion hole of the upper casing upward from below, and the convex part of the second key combination is the key It is formed by protruding the piece from the lower surface side to the upper surface side, and the key combination is changed by changing the position of the convex portion and the concave portion in the horizontal direction or not.
The protrusion of the third key combination is formed by projecting the lower casing from the lower surface side to the upper surface side, and the recess portion of the third key combination causes the key piece to be recessed in the lateral direction. 3. The lock device according to claim 2, wherein the key combination is changed by changing the positions of the protrusion and the recess in the front-rear direction. The concave portion of the first key combination includes a vertical groove that allows the convex portion of the key piece to move in the front-rear direction, and a horizontal groove that allows the convex portion of the key piece to move in the horizontal direction. The lock device according to claim 3, further comprising:

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