Cylinder-less locker lock body and cylinder-less locker lock

Abstract

To reduce the number of components required for a cylinder lock and its maintenance load by not using the cylinder lock for number search.SOLUTION: A cylinder-less locker lock body according to an embodiment includes a dial lock, a knob, a bolt, and a number search arm. The dial lock, which enters one of an unlocked state, a locked state, and a number search state, is provided with a dial, a sleeve, and a state transition unit. The knob allows a hook arm to rotate when the dial lock is in the unlocked state. The bolt stops the movement of the knob when the dial lock is in the locked state. The number search arm contacts a number search unit of the sleeve to search for an unlocking number of the dial lock when the dial lock is in the number search state. The cylinder-less locker lock body according to the embodiment is configured to make the dial lock transit from the locked state to the number search state by inserting an insertion jig to move the state transition unit and bring the number search arm into contact with the number search unit of the sleeve.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] An embodiment of the present invention relates to a cylinderless locker lock body and a cylinderless locker lock. [Background technology]

[0002] Traditionally, dial locks have been widely used as lockers. Dial locks do not require a duplicate key, making them suitable for lockers that can be used by an unspecified number of people. However, since the unlocking combination can sometimes be forgotten, locks that allow an administrator to open the lock with a duplicate key are used. When opening a lock with a duplicate key, some systems reset the unlocking combination, while others search for the unlocking combination, unlock the lock with the unlocking number, and then change the unlocking number. Since the mechanism for resetting the unlocking combination is complicated, many systems use the unlocking combination change function that is inherently included in the dial lock.

[0003] A conventional locker lock includes a dial lock, a knob, a bolt, a temporary opening arm, a number search arm, and a cylinder lock (see Patent Document 1). The dial lock can be in an unlocked state, a locked state, a temporary unlocked state, or a number search state, and includes a dial and a sleeve. The knob is used to rotate the hook arm when the dial lock is in the unlocked state. The bolt is used to stop the movement of the knob when the dial lock is in the locked state. The temporary opening arm pushes the number search arm when the dial lock is in the number search state. One end of the number search arm is pushed by the temporary opening arm, and the other end contacts the number search portion of the sleeve to search for the unlocking number of the dial lock. The cylinder lock is unlocked with a duplicate key, which moves the bolt to the unlock position and simultaneously abuts the other end of the number search arm against the number search portion of the sleeve, transitioning the dial lock from the locked state to the temporary unlocked state. Then, when the knob is rotated to the "OPEN" position, the locker lock body transitions to a temporary closed door state and the combination lock number search state is entered. By creating this number search state, it is possible to search for the combination lock number from the front of the lock using a duplicate key.

[0004] On the other hand, cylinder locks can be unlocked with a duplicate key, and the other end of the number search arm can be brought into contact with the number search portion of the sleeve without moving the bolt to the unlocked position, thereby transitioning the combination lock from the locked state to the number search state. By creating this number search state, it is possible to search for the combination lock number from the front side of the lock using a duplicate key. This configuration will be explained using Figure 13.

[0005] Fig. 13(A) is a side view showing a conventional locker lock in a closed door state, and Fig. 13(B) is a side view showing a conventional locker lock in a partially closed door state.

[0006] The conventional locker lock includes a locker lock body 1A and a duplicate key 8A. The locker lock body 1A includes a dial lock 10A, a knob 20, a hook arm 40, a bolt 50, a number search arm 60, a shaft 70, and a cylinder lock 90. ​​One end of a state transition unit 13A of the dial lock 10A is connected to the cylinder lock 90. ​​When the duplicate key 8A is inserted into the cylinder lock 90 and turned to unlock it in the closed door state shown in FIG. 13(A), the state transition unit 13A moves in the positive direction of the Y axis due to a cam 91 (shown in FIG. 13(B)). This causes the state transition unit 13A to move (i.e., push) one end of the number search arm 60 in the positive direction of the Y axis, bringing the other end of the number search arm 60 into contact with the number search unit of the sleeve 12 (locker lock body 1A in the temporary closed door state, and dial lock 10A in the number search state). [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-281160 Summary of the Invention [Problem to be solved by the invention]

[0008] In conventional locker locks, a cylinder lock 90 is used to create a number search state for the dial lock 10A, which means that the cylinder lock 90 has a large number of parts and requires a large maintenance load.

[0009] The problem that the present invention aims to solve is to provide a cylinderless locker lock body and a cylinderless locker lock that can reduce the number of parts required for the cylinder lock and reduce the maintenance load by not using a cylinder lock to search for the dial lock number. [Means for solving the problem]

[0010] The cylinderless locker lock body according to the embodiment includes a dial lock, a knob, a bolt, and a number search arm. The dial lock is in one of an unlocked state, a locked state, and a number search state, and includes a dial, a sleeve, and a state transition unit. The knob allows the hook arm to rotate when the dial lock is in the unlocked state. The bolt stops the movement of the knob when the dial lock is in the locked state. The number search arm contacts the number search unit of the sleeve to search for the unlocking number of the dial lock when the dial lock is in the number search state. The cylinderless locker lock body according to the embodiment is configured to transition the dial lock from the locked state to the number search state by inserting an insertion jig to move the state transition unit and bring the number search arm into contact with the number search unit of the sleeve. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a diagram showing the appearance of a cylinderless locker lock body according to an embodiment. FIG. [Figure 2] 1 is a perspective view showing the internal structure of a cylinderless locker lock body and an insertion jig in a temporarily closed door state according to an embodiment. FIG. [Figure 3] A side view showing the internal structure of the cylinderless locker lock body and the insertion jig in the temporarily closed door state according to the embodiment. [Figure 4] 1 is a diagram showing the configuration of an insertion jig for a cylinderless locker lock according to an embodiment. FIG. [Figure 5] 10 is a diagram showing the relationship between the insertion amount and bending amount of an insertion jig in a cylinderless locker lock according to an embodiment. FIG. [Figure 6] 1 is a conceptual diagram showing a locking method for a cylinderless locker lock body according to an embodiment. [Figure 7] 1 is a conceptual diagram showing a method for searching for a number of a cylinderless locker lock body according to an embodiment. [Figure 8] FIG. 2 is a diagram showing the relationship between the dial lock and the bolt of the cylinderless lock body according to the embodiment. [Figure 9] 1 is a diagram showing the number search arm and number search unit of the cylinderless locker lock body according to an embodiment. FIG. [Figure 10] FIG. 2 is a diagram showing one digit of the dial lock of the cylinderless locker lock body according to the embodiment. [Figure 11] 1 is a diagram showing a state transition diagram and a state table of a cylinderless locker lock body according to an embodiment. FIG. [Figure 12] A diagram for explaining the fraud prevention means in the cylinderless locker lock body of the embodiment. [Figure 13] 10A and 10B are diagrams showing the operation from locking to provisional locking of a cylinderless lock body according to the prior art. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of a cylinderless locker lock body and a cylinderless locker lock will be described in detail with reference to the drawings.

[0013] FIG. 1 is a diagram showing the appearance of a cylinderless locker lock body according to an embodiment. FIG. 1(A) shows a top view of the cylinderless locker lock body according to an embodiment in an open door state. FIG. 1(B) shows a top view of the cylinderless locker lock body according to an embodiment in a closed door state. FIG. 1(C) shows a perspective view of the cylinderless locker lock body according to an embodiment in a closed door state. The two directions on the top surface of the cylinderless locker lock body are defined as the X-axis direction and the Y-axis direction, and the depth direction perpendicular to the X-axis direction and the Y-axis direction is defined as the Z-axis direction.

[0014] FIG. 1 shows a cylinderless locker lock body 1 according to an embodiment. The cylinderless locker lock body 1 comprises a dial lock 10, a knob 20, a tool path 30, and a hook arm 40. The dial lock 10 is provided with a dial 11 and is configured to be in one of an unlocked state, a locked state, and a number search state shown in FIG. 11(B). The tool path 30 has an insertion opening 31 for an insertion tool 8. The cylinderless locker lock body 1 and the insertion tool 8 together constitute a cylinderless locker lock S according to an embodiment (shown in FIG. 2).

[0015] The dial lock 10 is a lock that is locked and unlocked by operating the dial 11. The knob 20 is a means for operating the hook arm 40 to close and open the cylinderless locker lock body 1 when the dial lock 10 is in the unlocked (number setting) state. The jig path 30 is a space for guiding the insertion jig 8 inserted from the insertion port 31 to the state transition section 13 (shown in Figure 2) and inserting the insertion jig 8. The cylinderless locker lock body 1 may further be provided with a cap (e.g., made of resin) that is detachable from the insertion port 31 of the jig path 30 to cover the hole in the insertion port 31.

[0016] The cylinderless locker lock body 1 does not include a cylinder lock 90 (shown in FIG. 13) that is unlocked with a duplicate key and put into a number search state, but is provided with a jig path 30 as a substitute for the duplicate cylinder lock 90. ​​The hook arm 40 is a member that locks the door into a hook receiving hole in the locker body.

[0017] Fig. 2 is a perspective view showing the internal structure of the cylinderless locker lock body 1 in the temporarily closed door state and the insertion jig 8. Fig. 3 is a side view showing the internal structure of the cylinderless locker lock body 1 in the temporarily closed door state and the insertion jig 8.

[0018] 2 and 3, the cylinderless locker lock body 1 includes a dial lock 10, a knob 20, a tool path 30, a hook arm 40, a bolt 50, a number search arm 60, and an axis 70. In addition to the dial 11, the dial lock 10 of the cylinderless locker lock body 1 also includes a sleeve 12 and a state transition unit 13.

[0019] The insertion jig 8 inserted through the insertion port 31 (shown in FIG. 1) pushes the state transition unit 13 of the dial lock 10 in the positive direction of the Y axis, thereby moving (i.e., pushing) one end (e.g., the lower side) of the number search arm 60 in the positive direction of the Y axis, causing the other end (e.g., the upper side) of the number search arm 60 to abut against the number search unit 12C (shown in FIG. 10) of the sleeve 12. The bolt 50 is a member that prevents the knob 20 from moving when the dial lock 10 is in the locked state. The number search arm 60 is a member that contacts the sleeve 12 to search for a number when the dial lock 10 is in the number search state. The number search arm 60 has a rotation axis parallel to the X axis, and one end of the axis rotates when pressed by the state transition unit 13, causing the other end to rotate and move. The axis 70 is a member that rotatably holds the sleeve 12.

[0020] Figure 4 shows the configuration of the insertion jig 8 of the cylinderless locker lock S. Figure 4(A) shows a side view of the insertion jig 8 in an extended state. Figures 4(B) and (C) show perspective views of the insertion jig 8 in an extended state. Figure 4(D) shows a side view of the insertion jig 8 in a bent state.

[0021] The insertion jig 8 is configured to be in either an extended state or a bent state. For example, the insertion jig 8 includes a head (handle portion) 81, a root link 82, a tip link 83, and a rotary joint 84. The root link 82 has a cross section formed to correspond to the shape of the insertion opening. The body axis of the tip link 83 is configured to be rotatable relative to the body axis of the root link 82, with the rotary joint 84 as the reference.

[0022] In the extended state (shown in FIGS. 4(A) to (C)), when pressure is applied so that the tip link 83 of the insertion jig 8 rotates counterclockwise in FIG. 4(A) around the rotary joint 84, the tip link 83 rotates in the counterclockwise direction. In other words, the insertion jig 8 transitions from the extended state to the bent state (shown in FIG. 4(D)) by pressure. On the other hand, in the bent state (shown in FIG. 4(D)), when pressure is applied so that the tip link 83 of the insertion jig 8 rotates clockwise in FIG. 4(D) around the rotary joint 84, the tip link 83 rotates in the clockwise direction. In other words, the insertion jig 8 transitions from the bent state to the extended state (shown in FIGS. 4(A) to (C)) by pressure.

[0023] The insertion jig 8 may include an elastic body (not shown). In this case, the insertion jig 8 is configured to be in an extended state (shown in FIGS. 4A to 4C) when the elastic body is released. When pressure is applied so that the tip link 83 rotates counterclockwise in FIG. 4A around the rotary joint 84, the tip link 83 rotates counterclockwise against the elastic force of the elastic body. That is, the insertion jig 8 transitions from the extended state to the bent state (shown in FIG. 4D) due to pressure applied against the elastic force of the elastic body. On the other hand, when pressure on the tip link 83 is released, the tip link 83 rotates clockwise in FIG. 4D according to the elastic force of the elastic body. That is, the insertion jig 8 transitions from the bent state to the extended state (shown in FIGS. 4A to 4C) due to the elastic force of the elastic body.

[0024] For example, the shape of the jig path 30 is adjusted so that the rotation of the tip link 83 (i.e., the bending of the insertion jig 8) progresses as the insertion of the insertion jig 8 into the cylinderless locker lock body 1 progresses. Figure 5 is a diagram showing the relationship between the insertion amount and bending amount of the insertion jig 8.

[0025] As the insertion of the insertion jig 8 into the cylinderless locker lock main body 1 along the positive direction of the Z axis progresses from FIG. 5(A), the tip link 83 of the insertion jig 8 comes into contact with the bottom surface of the jig path 30 and rotates around the X axis relative to the root link 82, causing the insertion jig 8 to bend toward the state transition unit 13 (shown in FIG. 5(B)). As the insertion of the insertion jig 8 further progresses, the tip link 83 approaches the state transition unit 13 (shown in FIG. 5(C)) and comes into contact with the state transition unit 13 (shown in FIG. 5(D)). Then, as the insertion of the insertion jig 8 further progresses, it pushes the state transition unit 13 in the positive direction of the Y axis, causing the insertion jig 8 to enter an inserted state (bent state) (shown in FIG. 5(E)).

[0026] FIG. 6 is a diagram for explaining a locking method for the cylinderless locker lock body 1. FIG. 7 is a diagram for explaining a number search method for the cylinderless locker lock body 1. FIG. 8 is a diagram showing the relationship between the dial lock 10 of the cylinderless locker lock body 1 and the bolt 50. FIG. 9 is a diagram for explaining the operation of the number search arm 60 of the dial lock 10 of the cylinderless locker lock body 1. FIG. 10 shows one digit of the dial lock 10 of the cylinderless locker lock body 1. FIG. 11 shows a state transition diagram and a state table for the cylinderless locker lock body 1.

[0027] 1 to 10, dial 11 of dial lock 10 is provided with number display section 11A. Dial 11 is a member for operating the numbers of dial lock 10. Number display section 11A is a part of dial 11, and is the section where numbers are displayed.

[0028] The sleeve 12 of the dial lock 10 has a bolt engagement portion 12A, a dial engagement portion 12B, and a number search portion 12C. The sleeve 12 is a member that moves the bolt to a locked position or an unlocked position depending on its rotation position. The bolt engagement portion 12A is a part of the sleeve 12 and is the portion that has a recess P that engages with the bolt 50. The dial engagement portion 12B is a part of the sleeve 12 and is the portion that engages with the dial 11. The number search portion 12C is a part of the sleeve 12 and is the portion that has a recess Q that engages with the number search arm 60.

[0029] The state transition unit 13 is a member that, when the insertion jig 8 is in the inserted state, pushes one end of the number search arm 60 to bring the other end of the number search arm 60 into contact with the number search unit 12C.

[0030] The following will explain the function and operation of the cylinderless locker lock main body 1 configured as above. First, an outline of the function of the cylinderless locker lock main body 1 will be explained with reference to FIG.

[0031] The cylinderless locker lock body 1 comprises a dial lock 10, a knob 20 for rotating the hook arm 40, and a jig path 30 for inserting an insertion jig 8 to set the dial lock 10 to a number search state. When the knob 20 is rotated to the "LOCK" position while the dial lock 10 is in an unlocked state, the hook arm 40 rotates and enters a hook receiving hole (not shown) in the locker body, and the cylinderless locker lock body 1 transitions from an open door state in which the door opens to a closed door state in which the door does not open. On the other hand, when the knob 20 is rotated to the "OPEN" position while the dial lock 10 is in an unlocked state, the hook arm 40 rotates and exits the hook receiving hole in the locker body, and the cylinderless locker lock body 1 transitions from a closed door state to an open door state.

[0032] When the insertion jig 8 is inserted into the jig path 30 and the state transition unit 13 is pushed in the positive direction of the Y axis, the cylinderless locker lock body 1 transitions from the locked state to the temporarily closed door state. In the temporarily closed door state of the cylinderless locker lock body 1, the number search arm 60 of the dial lock 10 abuts against the sleeve 12 of the dial lock 10, and the dial lock 10 enters a number search state. When the dial 11 of the dial lock 10 is rotated in the number search state of the dial lock 10, the dial 11 stops at the position of the unlocking number, and the dial lock 10 enters a state in which it is searching for the unlocking number.

[0033] Next, the internal structure of the cylinderless locker lock body 1 will be described with reference to Figures 2 and 3. The dial 11 of the combination lock 10 has several digits, for example, four digits, and is coupled to the corresponding sleeve 12. When the combination lock 10 is set to the unlocking number, the bolt 50 engages with the recess P of the bolt engagement portion 12A of the sleeve 12 and moves to the open position, so that the end of the bolt 50 disengages from the protruding portion of the knob 20, allowing the knob 20 to be turned.

[0034] A hook arm 40 is attached to the knob 20, and when the knob 20 is turned to the "LOCK" position, the hook arm 40 enters the hook receiving hole in the locker body. When the insertion jig 8 is inserted into the jig path 30 and the state transition unit 13 is pushed in the positive direction of the Y axis by the tip link 83 (shown in Figure 5(E)), the insertion jig 8 advances along the jig path 30 and pushes one end of the number search arm 60 via the state transition unit 13, causing the other end of the number search arm 60 to abut against the number search unit 12C of the sleeve 12.

[0035] Next, a method for locking the cylinderless locker lock body 1 will be described with reference to Figure 6. When the dial 11 is rotated and set to the desired unlocking number in the open door state shown in Figure 6(A), the cylinderless locker lock body 1 will enter the number setting state shown in Figure 6(B). When the knob 20 is turned in this state, the cylinderless locker lock body 1 will enter the closed door state shown in Figure 6(C).

[0036] Thereafter, by rotating the dial 11 and setting the number on the dial lock 10 to a random value, the cylinderless locker lock body 1 will enter the locked state shown in Figure 6(D). To unlock, by rotating the dial 11 and setting the number on the dial lock 10 to the unlock number, the cylinderless locker lock body 1 will enter the closed state shown in Figure 6(C). Then, by turning the knob 20, the cylinderless locker lock body 1 will enter the open state shown in Figure 6(A), and the door can be opened.

[0037] Next, the number search method will be explained with reference to Figure 7. If the unlocking number is forgotten in the locked state shown in Figure 7(A), inserting the insertion jig 8 into the cylinderless locker lock body 1 (shown in Figure 5(E)) will cause the cylinderless locker lock body 1 to enter the temporarily closed door state shown in Figure 7(B). In this state, the dial lock 10 enters the number search state.

[0038] Also, as shown in Figure 7(C), when the dial 11 is turned, it stops at the unlocking number. When the number on the combination lock 10 reaches the unlocking number, if the insertion jig 8 is pulled out and the knob 20 is turned to the "OPEN" position, the cylinderless locker lock body 1 will enter the open door state shown in Figure 7(D).

[0039] Next, the relationship between the dial lock 10 and the bolt 50 will be explained with reference to FIG. 8. FIG. 8(A) shows a side view of the knob 20, sleeve 12 (bolt engagement portion 12A), and bolt 50 (a side view of the periphery of the sleeve 12). FIG. 8(B) shows a side view of the state transition portion 13, bolt 50, and number search arm 60 (a side view of the periphery of the state transition portion 13). FIGS. 8(C)-(D) show schematic diagrams of the knob 20, sleeve 12, and bolt 50. When the number on the dial lock 10 is an unlocking number, as shown in FIG. 8(C), the tip of the bolt 50 engages with the recess P of the bolt engagement portion 12A of the sleeve 12, and the end of the bolt 50 is disengaged from the protrusion R of the knob 20. Therefore, the hook arm 40 can be rotated by turning the knob 20.

[0040] When the number on the dial lock 10 is not an unlocking number, as shown in Figure 8(D), the tip of the bolt 50 is in contact with the bolt engagement portion 12A without engaging with the recess P of the bolt engagement portion 12A of the sleeve 12 of the dial lock 10, so the end of the bolt 50 abuts the protrusion R of the knob 20. Therefore, the knob 20 cannot be turned, and the hook arm 40 cannot be rotated. In other words, the bolt 50 stops the movement of the knob 20 when the dial lock 10 is in the locked state.

[0041] Next, the number search unit 12C of the dial lock 10 will be described with reference to Figure 9. Figure 9(A) shows a side view of the sleeve 12 (number search unit 12C) and the number search arm 60 (a side view of the periphery of the sleeve 12). Figures 9(B) to 9(E) show schematic diagrams of the sleeve 12 and the number search arm 60. In the locked state of the dial lock 10 shown in Figure 9(B), the insertion jig 8 is not inserted, and the number search arm 60 is separated from the number search unit 12C of the sleeve 12 of the dial lock 10. In the unlocked state of the dial lock 10 shown in Figure 9(C), the insertion jig 8 is not inserted, and the number search arm 60 is separated from the number search unit 12C of the sleeve 12 of the dial lock 10. On the other hand, the recess Q of the number search unit 12C is located opposite the tip of the number search arm 60.

[0042] When the dial lock 10 is in the locked state, inserting the insertion tool 8 into the cylinderless lock body 1 places the dial lock 10 in the number search state shown in Figure 9(D). In the number search state of the dial lock 10, one end of the number search arm 60, which has been pressed, comes into contact with the number search portion 12C of the sleeve 12. In this state, the dial 11 is rotated to perform the number search. When the sleeve 12 reaches the unlocking number position, the tip of the number search arm 60 engages with the recess Q of the number search portion 12C of the sleeve 12, preventing the dial 11 from rotating. When all dials 11 are in this state, the dial lock 10 enters the search completion state shown in Figure 9(E). In this state, when the insertion tool 8 is pulled out of the cylinderless lock body 1, the state transition unit 13 moves in the negative direction of the Y axis, and the other end of the number search arm 60, which has been pressed, moves away from the number search portion 12C of the sleeve 12 of the dial lock 10.

[0043] Next, the sleeve 12 of the dial lock 10 will be described with reference to Figure 10. Figure 10(A) shows a side view of one digit of the dial 11, and side and front views of the sleeve 12. As shown in Figures 10(B) to (D), the sleeve 12 of the dial lock 10 is made up of a bolt engagement portion 12A having a recess P that engages with the tip of the bolt 50, a dial engagement portion 12B that engages with the dial 11, and a number search portion 12C having a recess Q that engages with the tip of the number search arm 60. The sleeve 12 made up of the members 12A to 12C is designed to rotate around an axis 70.

[0044] In the unlocked state of the dial lock 10 shown in Figure 10(B), the dial 11 and sleeve 12 are separated, and the dial 11 can rotate freely. The sleeve 12 does not rotate, and the tip of the bolt 50 remains engaged in the recess P of the sleeve 12. In this state, the number search arm 60 is separated from the number search unit 12C. When the knob 20 is turned to the "LOCK" position in the unlocked state, the dial 11 and sleeve 12 are connected. When the dial 11 is turned in this state, the sleeve 12 rotates and moves away from the unlock number, and the tip of the bolt 50 comes out of the recess P and into contact with the sleeve 12, resulting in the locked state shown in Figure 10(C). In the locked state, the number search arm 60 remains separated from the number search unit 12C.

[0045] When the insertion jig 8 is inserted into the cylinderless locker lock body 1, the insertion jig 8 pushes the state transition unit 13 in the positive direction of the Y axis, causing the dial lock 10 to transition from the locked state to the number search state. At this time, one end of the number search arm 60, the other end of which is pushed, abuts against the number search unit 12C of the sleeve 12 (the abutting state is not shown). At the beginning of the transition from the locked state to the number search state, the dial 11 and sleeve 12 remain connected, so turning the dial 11 also rotates the sleeve 12.

[0046] When the dial 11 is turned to the position of the unlocking number, the tip of the number search arm 60 engages with the recess Q of the number search portion 12C of the sleeve 12 (shown in Figure 10(D)), and the sleeve 12 becomes immovable. Note that even when the dial lock 10 transitions from the locked state to the number search state, the tip of the bolt 50 remains in contact with the sleeve 12. When the unlocking number is reached, the insertion jig 8 is pulled out of the cylinderless locker lock body 1 to return the dial lock 10 to the closed state, and then the knob 20 is turned to the "OPEN" position, and the dial lock 10 transitions to the unlocked state.

[0047] Next, the state transitions of the cylinderless lock body 1 will be explained with reference to Figures 2 and 11. When the dial lock 10 is in an unlocked state with the unlock number set and the knob 20 is in the "OPEN" position, the cylinderless lock body 1 is in an open state. At this time, the dial 11 is separated from the sleeve 12. The bolt 50 is in the open position and the knob 20 can be rotated.

[0048] When the cylinderless locker lock main body 1 is in the open state, close the door, set the unlock number, and turn the knob 20 to the "LOCK" position to enter the closed state. When the cylinderless locker lock main body 1 is in the closed state, the dial 11 engages with the sleeve 12. When the dial 11 is turned away from the unlock number, the dial lock 10 enters the locked state, and the cylinderless locker lock main body 1 enters a locked state in which the door cannot be opened even when the knob 20 is turned. When the cylinderless locker lock main body 1 is in the locked state, changing the number on the dial lock 10 to the unlock number will return it to the closed state. When the cylinderless locker lock main body 1 is in the closed state, turning the knob 20 to the "OPEN" position will open the door and return it to the open state.

[0049] On the other hand, when the cylinderless locker lock body 1 is in the locked state, inserting the insertion jig 8 into the cylinderless locker lock body 1 (shown in Figure 5 (E)) puts the door in a temporarily closed state (inserted state of the insertion jig 8), and the tip of the number search arm 60 comes into contact with the sleeve 12. In this state, the dial 11 is turned to search for the number. The position where the dial 11 stops after turning is the position of the unlocking number. At the position of the unlocking number, the tip of the number search arm 60 engages with the recess Q.

[0050] The search is complete when all dials 11 have the unlocking number. Once the number search is complete, the insertion jig 8 is pulled out of the cylinderless locker lock body 1, which then enters the closed door state. When the knob 20 is turned to the "OPEN" position, the cylinderless locker lock body 1 transitions from the closed door state to the open door state. The dials 11 are separated from the sleeve 12, allowing the unlocking number to be changed.

[0051] In this example, an example was described in which the dial lock 10 is a free-number type, but the same applies to a fixed-number type. If the dial lock 10 is a fixed-number type, insert the insertion jig 8 into the cylinderless locker lock body 1 to put the dial lock 10 in a number search state, turn the dial 11 to search for the number, put the dial lock 10 in an unlocked state, then put it in a number change state to change the unlocking number. In the case of a fixed-number type, the dial 11 and sleeve 12 are always connected. Only when the number change button is pressed to put it in the number change state do the dial 11 and sleeve 12 separate, making it possible to change the unlocking number.

[0052] As described above, the cylinderless locker lock body 1 does not have a cylinder lock 90 (shown in FIG. 13), but has a space called the jig path 30. By inserting an insertion jig 8 formed to correspond to the shape of the insertion opening 31 into the jig path 30 from the insertion opening 31, it is possible to push the state transition unit 13 in the positive direction of the Y axis with the insertion jig 8. On the other hand, it is preferable to prevent the state transition unit 13 from being pushed by the improper jig W by inserting a long, thin improper jig W into the jig path 30 from the insertion opening 31. For this purpose, as shown in FIG. 12, it is preferable to make the inner wall 32 of the jig path 30 directly below the insertion opening 31 sufficiently deep so that the improper jig W inserted from the insertion opening 31 does not come into contact with the state transition unit 13 and there is a sufficient gap between them.

[0053] As described above, with the cylinderless locker lock main body 1 and cylinderless locker lock S, it is possible to reduce the number of parts required for the cylinder lock 90 and the maintenance burden by not using the cylinder lock 90 to search for the number of the dial lock 10. There are a large number of parts related to the cylinder lock 90 alone, and since it is made of metal, plating and assembling it requires a lot of work, so by not using the cylinder lock 90, the number of parts required for the cylinder lock 90 can be significantly reduced, making it possible to cut costs.

[0054] (First Modification) As described above in the embodiment, the cylinderless locker lock S has a configuration in which the tip link 83 of the insertion jig 8 inserted into the cylinderless locker lock main body 1 directly contacts the state transition part 13 and pushes the state transition part 13, but is not limited to this case. The cylinderless locker lock S may also have a configuration in which the tip link 83 of the insertion jig 8 inserted into the cylinderless locker lock main body 1 indirectly contacts the state transition part 13 and pushes the state transition part 13 in the positive direction of the Y axis.

[0055] For example, in the cylinderless locker lock S, the tip link 83 of the insertion jig 8 inserted into the cylinderless locker lock main body 1 pushes an intermediate member (not shown), which then contacts the state transition unit 13 and pushes the state transition unit 13 in the positive direction of the Y axis. By moving the state transition unit 13 in the positive direction of the Y axis via the intermediate member and bringing the number search arm 60 into contact with the number search unit 12C of the sleeve 12, the dial lock 10 is transitioned from the locked state to the number search state.

[0056] Even in the first variant, as mentioned above, by not using a cylinder lock 90 for searching the number of the dial lock 10, it is possible to reduce the number of parts required for the cylinder lock 90 and reduce the maintenance load.

[0057] (Second Modification) As described above in the embodiment, the cylinderless locker lock S has a configuration in which the insertion jig 8 is inserted by bending the tip link 83 counterclockwise around the X-axis in FIG. 5 as the insertion jig 8 is inserted, while the state transition unit 13 moves in the positive direction of the Y-axis in FIG. 5 (i.e., pushes) by contact with the tip surface of the tip link 83, but this is not limited to this case. Even if the rotation is about the same X-axis, the rotation direction of the tip link 83 may be reversed. For example, the cylinderless locker lock S may have a configuration in which the insertion jig 8 is inserted by bending the insertion jig 8 clockwise around the X-axis in FIG. 5 as the insertion jig 8 is inserted, while the state transition unit 13 moves in the negative direction of the Y-axis in FIG. 5 (i.e., pulls).

[0058] Specifically, as the insertion of the insertion jig 8 into the cylinderless locker lock body 1 proceeds from FIG. 5(A), the tip link 83 of the insertion jig 8 contacts the bottom surface of the jig path 30 and rotates clockwise in FIG. 5 around the X-axis relative to the root link 82, bending the insertion jig 8 and inserting the insertion jig 8, which moves the state transition unit 13, which is in contact with the tip link 83, in the negative direction of the Y-axis. By moving the state transition unit 13 in the negative direction of the Y-axis and abutting the number search arm 60 against the number search unit 12C of the sleeve 12, the dial lock 10 transitions from the locked state to the number search state. When the state transition unit 13 is moved in the negative direction of the Y-axis, one end side (e.g., the lower side) of the number search arm 60 is moved (i.e., pulled) in the negative direction of the Y-axis, and the other end side (e.g., the upper side) of the number search arm 60 abuts against the number search unit 12C.

[0059] The configuration according to the second modified example can also be applied to the configuration according to the first modified example described above. That is, when insertion jig 8 is bent by rotating it clockwise in Fig. 5 around the X axis to move state transition unit 13 in the negative direction of the Y axis, the tip of tip link 83 may be in direct contact with state transition unit 13 or indirect contact with state transition unit 13 via an intermediate member (not shown).

[0060] Even in the second variant, as mentioned above, by not using a cylinder lock 90 for searching the number of the dial lock 10, it is possible to reduce the number of parts required for the cylinder lock 90 and reduce the maintenance load.

[0061] (Third Modification) As described above in the embodiment, the cylinderless locker lock S has a configuration in which the insertion jig 8 is inserted by bending the tip link 83 counterclockwise around the X-axis in FIG. 5 and moving (i.e., pushing) the state transition unit 13 in the positive direction of the Y-axis in FIG. 5 through contact with the tip surface of the tip link 83, but this is not limited to this case. The tip link 83 may rotate around the Y-axis instead of the X-axis. For example, the cylinderless locker lock S has an insertion opening (not shown) in which the insertion opening 31 shown in FIG. 1 is rotated 90 degrees around the Z-axis. The insertion opening is rotatable around the Z-axis. The insertion jig 8 may be inserted into the cylinderless lock lock S through the insertion opening and bent around the Y-axis. The side of the tip link 83 may move and push the state transition unit 13 in the positive direction of the Y-axis in FIG. 5 in accordance with the axial rotation (rotation around the Z-axis) of the insertion jig 8.

[0062] Specifically, as the insertion of the insertion jig 8 into the cylinderless locker lock main body 1 proceeds from Fig. 5(A), the tip link 83 of the insertion jig 8 comes into contact with the bottom surface of the jig path 30 and rotates counterclockwise in Fig. 5 about the Y-axis (about the X-axis in Fig. 5(B)) relative to the root link 82, bending the insertion jig 8. Then, the insertion jig 8 is inserted by rotating it about the Z-axis, causing the side of the tip link 83 to come into contact with the state transition unit 13, moving the state transition unit 13 in the positive direction of the Y-axis. By moving the state transition unit 13 in the positive direction of the Y-axis and abutting the number search arm 60 against the number search unit 12C of the sleeve 12, the dial lock 10 is transitioned from the locked state to the number search state. When the state transition unit 13 is moved in the positive direction of the Y axis, one end side (e.g., the lower side) of the number search arm 60 is moved (i.e., pushed) in the positive direction of the Y axis, and the other end side (e.g., the upper side) of the number search arm 60 abuts against the number search unit 12C.

[0063] The configuration according to the third modification can also be applied to the configuration according to the first modification and / or the second modification. That is, when the insertion jig 8 that has been rotated and bent about the Y axis is rotated about the Z axis to move the state transition unit 13 in the positive direction of the Y axis, the side of the tip link 83 may be in direct contact with the state transition unit 13 or indirect contact with the state transition unit 13 via an intermediate member (not shown). Also, when the insertion jig 8 that has been rotated and bent about the Y axis is rotated about the Z axis to move the state transition unit 13 in the negative direction of the Y axis, the side of the tip link 83 may be in direct contact with the state transition unit 13 or indirect contact with the state transition unit 13 via an intermediate member (not shown).

[0064] Even in the third variant, as mentioned above, by not using a cylinder lock 90 for searching the number of the dial lock 10, it is possible to reduce the number of parts required for the cylinder lock 90 and reduce the maintenance load.

[0065] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, as well as within the scope of the invention described in the claims and their equivalents. [Explanation of symbols]

[0066] S...Cylinderless locker lock 1...Cylinderless locker lock body 8...Insertion jig 10...Dial lock 11...Dial 12...Sleeve 13...State transition section 20...Knob 30...Jig path 40...Hook arm 50...volts 60...Number search arm 70...Axis 81...Head (handle part) 82...Root link 83...Tip link 84...Rotating joint

Claims

1. a combination lock that is in one of an unlocked state, a locked state, and a number search state and that is provided with a dial, a sleeve, and a state transition unit; a knob that can rotate the hook arm when the combination lock is in the unlocked state; a bolt that stops the movement of the knob when the dial lock is in the locked state; a number search arm that contacts the number search portion of the sleeve to search for an unlocking number for the combination lock when the combination lock is in the number search state; Equipped with A cylinderless locker lock body having a configuration in which the state transition section is moved by inserting an insertion jig, thereby abutting the number search arm against the number search section of the sleeve, thereby transitioning the dial lock from the locked state to the number search state.

2. The inserted insertion jig is configured to directly or indirectly contact the state transition unit to push the state transition unit. The cylinderless locker lock body according to claim 1.

3. The insertion jig is inserted to push and move the state transition unit, thereby causing the number search arm to contact the number search unit of the sleeve. The cylinderless locker lock body according to claim 1.

4. A configuration is provided in which the state transition unit is pushed in accordance with the insertion of the insertion jig. The cylinderless locker lock body according to claim 3.

5. A configuration is provided in which the state transition unit is pushed in accordance with the axial rotation of the inserted insertion jig. The cylinderless locker lock body according to claim 3.

6. A cylinderless locker lock body according to any one of claims 1 to 5, An insertion jig that is detachable from the cylinderless lock body; Cylinderless locker lock with.

7. The insertion jig is in either an extended state or a bent state.

7. The cylinderless locker lock according to claim 6.

8. 8. The cylinderless locker lock according to claim 7, wherein the insertion jig comprises a head, a root link, and a tip link connected by a rotary joint.

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