JP7101975B2 - Dial lock - Google Patents

Description

The present invention relates to a dial lock.

As one of the locks for locking cabinets, storage wagons, lockers, etc., and doors, there is a dial-type lock (hereinafter referred to as a dial lock) that unlocks when a plurality of dial numbers are in a predetermined combination. Dial locks include dial locks in which the combination of dial numbers to be unlocked can be freely set, and dial locks in which the combination of dial numbers to be unlocked is fixed. Further, in Patent Document 1, the free setting dial function in which the combination of dial numbers to be unlocked can be freely set and the fixed dial function in which the combination of dial numbers to be unlocked are fixed can be switched by the switching means. Dial locks are listed.

Japanese Patent No. 3358082

According to a multifunctional dial lock having a free setting dial function and a fixed dial function as described in Patent Document 1, a means for switching between the free setting dial function and the fixed dial function according to a purpose and an application. Can be switched and used by. On the other hand, as compared with the single-function dial lock, the multifunctional dial lock has more parts constituting the switching means, and the configuration becomes complicated. As a result, there is a concern that the dial lock becomes large, the cost increases, the assembly work becomes difficult, and the shape and arrangement of other parts are restricted in design.

In view of the above problems, it is an object of the present invention to provide a dial lock in which the switching means for switching between the free setting dial function and the fixed dial function has a simpler configuration than the conventional one.

In order to solve the above problems, the present invention relates to a freely set dial state in which an unlocking code, which is a combination of a locked state, an unlocked state, and a dial code to be unlocked, can be freely set, and an unlocking code. A dial lock having a fixed dial state in which the combination is fixed, and a shaft portion that is supported by a housing and can reciprocate in the axial direction, and is in the forward position in the unlocked state and the freely set dial state. In other states, the lock state and the freely set dial state and the fixed dial state, and the unlocked state and the fixed dial state, the shaft portion that becomes the recovery position and a plurality of rotors rotatably supported by the shaft portion. A plurality of disk-shaped dial portions that are rotatably supported by a portion and a shaft portion, are rotatable with a rotor portion, and have a dial code on the peripheral surface, and are in an unlocked state and a freely set dial state. A dial part that is disengaged from the rotor part and rotates independently of the rotor part, and in other states, a dial part that engages with the rotor part and rotates together with the rotor part, and a locking operation for locking. , The regulation that accepts the unlocking operation to be in the unlocked state and works with the operation part that moves the lock, the rotor part and the operation part, and regulates the unlocking operation of the operation part when the dial part is not the unlocking code in the locked state. A unit, a shaft unit, and an operation unit are interlocked with each other, and a switching unit for switching between a free setting dial state and a fixed dial state is provided. The switching unit is located between the dial unit and the operation unit and is supported by a housing. A switching shaft portion and a crank portion that is supported by a housing and rotates in conjunction with the switching shaft portion or the operating portion. Including a crank portion having a crank branch portion extending from the switching shaft portion to the switching shaft portion, the crank portion moves the shaft portion to the forward movement position in the unlocked state and the free setting dial state, and in other states, the crank portion is moved to the forward movement position. A dial lock that moves the shaft to the return position.

By providing a switching unit, the dial lock according to the present invention can be used by switching between a free setting dial state and a fixed dial state according to an application and a purpose. Further, in the dial lock according to the present invention, the switching portion is arranged between the dial portion and the operating portion, the crank portion is composed of the crank main body portion and the crank branch portion, and the crank portion is the shaft portion and the switching shaft portion. It is configured so that it can rotate in conjunction with the operation unit. The crank portion can be rotated directly in conjunction with the switching shaft portion and the operation portion without using other parts as in the prior art (for example, "switching member (9)" described in Patent Document 1). That is, the dial lock according to the present invention has a simpler configuration than the conventional one in that the switching unit corresponding to the switching means for switching between the free setting dial function and the fixed dial function.

The dial lock according to the present invention can be used as a storage for cabinets, storage wagons, lockers, etc., and as a lock for locking a door. The locked state is a state in which the bar is engaged with the receiver of the storage or the door, and the unlocked state is a state in which the bar is disengaged from the receiver of the storage or the door. The locked state and the unlocked state can be switched by the operation unit, and the free setting dial state and the fixed dial state can be switched by the switching unit. The dial lock states according to the present invention are appropriately combined and include an unlocked and freely set dial state, an unlocked and fixed dial state, a locked and freely set dial state, and a locked and fixed dial state. The shaft portion can reciprocate between the forward movement position and the reverse movement position. The forward movement position is the position in the unlocked state and the free setting dial state. The recovery position is a position in any other state. The dial portion rotates independently of the rotor portion in the unlocked state and the freely set dial state. As a result, the unlocking code can be freely set. On the other hand, the dial portion engages with the rotor portion and rotates together in a state other than the unlocked state and the freely set dial state. In addition, the regulation unit is linked with the rotor unit and the operation unit. Therefore, for example, when the dial unit is not an unlocking code in the locked state, it is possible to regulate the unlocking operation of the operation unit.

The dial code can be composed of, for example, numbers 0 to 9, but is not limited thereto. The code may be another number, a character, or the like, as long as it can be identified. Four dials can be arranged side by side, but the number is not limited. The rotor portion can be arranged according to the number of dial portions. The unlocking code can be arbitrarily set, in other words, changed at the time of use.

Here, in the dial lock according to the present invention, in the unlocked state and the locked state, and in the fixed dial state, the tip of the crank branch portion is pushed by the switching shaft portion to rotate the crank portion, and the main body The shaft part is pushed at the base end of the part to move the shaft part to the return position, and in the unlocked state and the free setting dial state, the tip of the crank branch part is not pushed by the switching shaft part, so that the crank part rotates. When the shaft is moved to the forward position and locked and in the free setting dial state, the tip of the crank body is pushed by the operation part to rotate the crank, and the base end of the crank body pushes the shaft. The shaft can be moved to the return position.

In the dial lock according to the present invention, the switching shaft portion is arranged between the dial portion and the operation portion, the crank portion is composed of the crank main body portion and the crank branch portion, and the switching portion operates as described above to switch. Although the unit has a simpler configuration than before, it is possible to switch between the free setting dial state and the fixed dial state.

Further, in the dial lock according to the present invention, the operation unit may make the bar move linearly in response to the locking operation and the unlocking operation. The bar may be a rotary motion, but if it is a linear motion, a dial lock can be used for a storage or a door that is difficult to attach with the rotary bar.

When the bar is linearly moved, it can be configured as follows, for example. For example, the operation unit has an engaging protrusion that engages with the bar, a drive shaft portion that is supported by the housing, a center cam portion that is connected to the drive shaft portion and pushes the tip of the crank body portion, and a center cam. The bar is made of a linear plate member, including a knob portion connected to the portion, and is cut out in the longitudinal direction from one short side, and a through groove of the bar through which the drive shaft portion slides and a through groove of the through groove. It may include a notch for supporting the bar which is cut out in the vicinity and on one long side and supports the engaging projection of the drive shaft portion.

As a result, the bar can be linearly moved by operating the operation unit.

Further, the dial lock according to the present invention controls the rotation of the search cylinder portion into which the search key for searching the unlocking code is inserted and the rotation of the rotor portion when the search key is inserted into the search cylinder portion and the search state is entered. A search unit for searching the unlocking code is further provided, and the search cylinder unit may be arranged side by side with the operation unit.

By further providing a search cylinder unit and a search unit, it is possible to search for an unlocking code. Further, in the dial lock according to the present invention, since the switching portion is arranged between the dial portion and the operation portion, a new space is formed next to the operation portion, and the search cylinder portion is arranged in this space. There is. That is, in the dial lock according to the present invention, the switching portion and the search cylinder portion are arranged side by side by using the space created by the simple configuration of the switching portion as the installation location of the search cylinder portion. Can be done. As a result, for example, in the lock described in Patent Document 1, the "knob" and the "search cam" are dispersedly arranged on both sides of the "dial ring". Has been miniaturized.

Further, the lock device according to the present invention is a cylinder lock connected to an operation unit, and includes an inner cylinder having a keyhole and an outer cylinder to which the inner cylinder is mounted, and by inserting an inner cylinder exchange key into the keyhole. An inner cylinder replaceable cylinder lock that allows sliding of the inner cylinder with respect to the outer cylinder and allows the inner cylinder to be pulled out from the outer cylinder may be further provided. This makes it possible to replace the inner cylinder (cylinder) that is rotatably fitted in the outer cylinder.

Further, the dial lock according to the present invention may further include a cover portion that covers between the dial portion and the dial portion.

By further providing the cover portion, it is possible to prevent dust and the like from entering between the dial portion and the dial portion. As a result, it is possible to suppress the occurrence of a problem of rotation of the dial portion and the rotor portion.

Further, the present invention may be specified as a storage or a door provided with the dial lock described above.

According to the present invention, it is possible to provide a dial lock in which a switching means for switching between a free setting dial function and a fixed dial function has a simpler configuration than before.

FIG. 1A shows an external view ((a) front view, (b) side view, (c) rear view) of the dial lock according to the first embodiment. FIG. 1B shows an external view of the dial lock according to the first embodiment ((a) a front view of the unlocked state and (b) a front view of the locked state). FIG. 2 shows a front view of the dial lock according to the first embodiment with the surface plate, the crank fixing plate, and the protector removed. FIG. 3 shows an exploded perspective view of the dial lock according to the first embodiment. FIG. 4 shows an exploded perspective view of the dial, memory rotor, dial shaft, and push nut according to the first embodiment. FIG. 5 shows a diagram illustrating a dial, a memory rotor, a dial shaft, and a push nut according to the first embodiment. FIG. 6 shows an external view ((a) front view, (b) side view) of the drive shaft according to the first embodiment. FIG. 7 shows an operation explanatory view (1) of the dial lock according to the first embodiment in a fixed dial state. FIG. 8 shows an operation explanatory view (2) of the dial lock according to the first embodiment in a fixed dial state. FIG. 9 shows an operation explanatory view (3) of the dial lock according to the first embodiment in a fixed dial state or a freely set dial state. FIG. 10 shows an operation explanatory view (4) of the dial lock according to the first embodiment in a fixed dial state or a freely set dial state. FIG. 11 shows an operation explanatory diagram of the dial lock according to the first embodiment in the free setting dial state. FIG. 12 shows an explanatory diagram (1) when performing a number search for the dial lock according to the first embodiment. FIG. 13 shows an explanatory diagram (2) when performing a number search for the dial lock according to the first embodiment. FIG. 14 shows an exploded perspective view of the dial lock according to the second embodiment. FIG. 15 shows an assembled perspective view of the search arm used for the dial lock according to the third embodiment and the search arm assist. FIG. 16 shows an exploded perspective view of the search arm used for the dial lock according to the third embodiment and the search arm assist.

Next, an embodiment of the present invention will be described with reference to the drawings. The following description is an example, and the present invention is not limited to the following contents.

<First Embodiment>
<Structure>
FIG. 1A shows an external view ((a) front view, (b) side view, (c) rear view) of the dial lock according to the first embodiment. FIG. 1B shows an external view of the dial lock according to the first embodiment ((a) a front view of the unlocked state and (b) a front view of the locked state). FIG. 2 shows a front view of the dial lock according to the first embodiment with the surface plate, the crank fixing plate, and the protector removed. FIG. 3 shows an exploded perspective view of the dial lock according to the first embodiment. FIG. 4 shows an exploded perspective view of the dial, memory rotor, dial shaft, and push nut according to the first embodiment. FIG. 5 shows a diagram illustrating a dial, a memory rotor, a dial shaft, and a push nut according to the first embodiment. FIG. 5A shows a state in which the dial shaft is in the forward movement position. FIG. 5B shows a state in which the dial shaft is in the return position. FIG. 5 (c) shows a cross-sectional view taken along the line cc of FIG. 5 (b). FIG. 5 (d) shows a cross-sectional view taken along the line dd of FIG. 5 (b). FIG. 5 (e) shows the figure ee of FIG. 5 (b). FIG. 5 (f) shows a cross-sectional view taken along the line ff of FIG. 5 (f). FIG. 6 shows an external view ((a) front view, (b) side view) of the drive shaft according to the first embodiment. In the following description, as shown by the arrow in FIG. 3, the front surface where the dial 50 is exposed will be referred to as “front” and the back surface will be referred to as “rear”. In addition, in the explanation of each part (part), the state in which the part is incorporated will be described with reference to the case where the part is viewed from the front.

The dial lock A (an example of the dial lock of the present invention) includes a case 10, a surface plate 20, a dial shaft 30, a memory rotor 40, a dial 50, a knob 60, a cannuki (bar) 70, a fork 80, a drive shaft 90, and a center cam. It is composed of 100, a crank 110, a crank SP, a switching shaft 120, a tactile spring 140, a search spring 150, a search arm 160, a search arm SP, a cylinder 170, a fork holding plate 180, a protector 190, and the like (see FIG. 3 and the like). ).

The dial lock A is a fixed dial state in which the unlocking code, which is a combination of the locked state, the unlocked state, and the unlocked state, can be freely set, and the unlocking code combination is fixed. Has a dial state. The locked state is the state in which the cannuki 70 engages with the storage and door receiver (see FIG. 1B (b)), and the unlocked state is the engagement between the cannuki 70 and the storage and door receiver. Is in a released state (see FIG. 1B (a)).

The case 10 (an example of the housing of the present invention) has a box shape of a rectangular cuboid whose front surface is open and which is long in the vertical direction, and each part is expropriated inside. The case 10 includes a rectangular case rear wall 11 that is long in the vertical direction, a case right wall 12, a case left wall 13, a case upper wall 14, and a case that are raised from four sides of the case rear wall 11. It is composed of a lower wall 15. Further, the case 10 is provided with notches, holes, irregularities, claws, etc. for fixing each part to be housed and the surface plate 20. For example, near the center of the rear wall 11 of the case, a cylindrical switching shaft receiver 16 that is raised from the rear wall 11 of the case and supports the switching shaft 120 is provided. In the vicinity of the lower side of the switching shaft receiver 16, a columnar first cannuki receiver 17a that is raised from the rear wall 11 of the case and supports one end of the cannuki SP is provided. A step 18 is formed on the lower wall 15 of the case, and the step 18 is provided with a second cannuki receiver 17b formed of a columnar protrusion that supports the other end of the cannuki SP (see FIG. 2). ).

The surface plate 20 is connected to the case 10 and covers the open portion of the case 10, in other words, the front surface of the dial lock A. The surface plate 20 has a dial display window 21, a knob opening 22, and a cylinder opening 23. The dial display window 21 displays the dial 50. The dial display window 21 is composed of rectangular openings that are long in the vertical direction (vertical direction), and is formed at four locations according to the number of dials 50. The knob 60 is inserted through the opening 22 of the knob. The opening 22 of the knob is formed of a circular through hole. A cylinder cap 171 that covers the front surface of the cylinder 170 is inserted into the opening 23 of the cylinder. The opening 23 of the cylinder is adjacent to the opening 22 of the knob and is formed of a circular through hole. The knob 60 may be assembled to the surface plate 20 to integrally form the knob 60 and the surface plate 20.

The knob 60 constitutes a part of the operation unit of the present invention, rotates between the locking position (CLOSE) and the unlocking position (OPEN), and receives a receiver (not shown) via the center cam 100 or the like. ) Is operated. The knob 60 is composed of a disk-shaped main body portion and a protruding portion protruding from the disk-shaped main body portion to the front side.

The dial 50 (an example of the dial portion of the present invention) can be set to any unlocking code. In the first embodiment, four dials 50 are provided, but the number of dials may be one or more. The dial 50 has a disk shape, and a number portion 51 on which a number, which is an unlocking code of 0 to 9, is printed, is formed on the outer peripheral surface (see FIG. 4). The dial 50 has a through hole 52 at the center through which the dial shaft 30 can be inserted. A gear portion 52a of the dial that engages with the gear-shaped unevenness of the outer peripheral portion of the memory rotor 40 is formed on the inner peripheral portion of the dial 50. Further, on the outer peripheral portion of the dial 50, a valley portion 53 of the dial is formed between the unlocking code and the unlocking code. In the unlocked state and the freely set dial state, the dial 50 is disengaged from the memory rotor 40 and rotates independently of the memory rotor 40. In other states, the dial 50 engages with the memory rotor 40. It rotates together with the memory rotor 40.

When the memory rotor 40 (an example of the rotor portion of the present invention) is engaged with the dial 50, the memory rotor 40 rotates together with the dial 50. The engagement between the memory rotor 40 and the dial 50 can be released by a crank 110 or the like described later. In the first embodiment, four memory rotors 40 are provided, but the number of memory rotors 40 can be one or more like the dial 50. The memory rotor 40 has a small cylinder portion 41 of the memory rotor that penetrates the dial 50, and a large cylinder portion 42 of the memory rotor that is connected to the small cylinder portion 41 of the memory rotor and has a diameter larger than that of the small cylinder portion 41 of the memory rotor. A notch 41a for searching is formed on the outer peripheral surface of the small cylindrical portion 41 of the memory rotor on the tip end side, in which the tip end portion of the search spring is fitted during number search. Further, a gear portion 44 (see FIG. 5e) of the memory rotor that engages with the gear portion 52a of the dial is formed on the outer peripheral surface of the small cylindrical portion 41 of the memory rotor on the base end side. Further, a notch 42a of the memory rotor into which the tip end portion 82a of the tooth of the fork is fitted is formed on the outer peripheral surface of the large cylindrical portion 42 of the memory rotor. The memory rotor 40 has a through hole 43 of the memory rotor formed in the center, and the dial shaft 30 can be inserted therethrough.

The dial shaft 30 (an example of the shaft portion of the present invention) is supported by the case 10 and can reciprocate in the axial direction (left-right direction). The dial shaft 30 is in the forward position in the unlocked state and the free setting dial state (see FIG. 5A), and is in other states, the locked state and the free setting dial state, the locked state and the fixed dial state, and the other states. It is in the reset position in the unlocked state and the fixed dial state (see FIG. 5 (b)). Further, the dial shaft 30 rotatably supports the dial 50 and the memory rotor 40. The dial shaft 30 is provided with a receiving portion 31 of the dial shaft that engages with the crank 110 at one end.

The push nut 39 is fixed to the other end of the dial shaft 30 (the end opposite to the receiving portion 31 of the dial shaft) so that the memory rotor 40 and the dial 50 do not come off from the dial shaft 30.

The cannuki 70 engages with a storage or a door receiver. The cannuki 70 (an example of a bar of the present invention) is composed of a rectangular plate, is connected to a drive shaft 90, and slides in the left-right direction in conjunction with the rotation of the knob 60. The cannuki 70 has an important notch 71 of the cannuki that engages with the large protrusion 91 of the drive shaft (see FIG. 6) (an example of the through groove of the present invention), and the first small of the cannuki that engages with the small protrusion 92 of the drive shaft. A notch 72 (an example of a support notch of the present invention) and second small notches 73a and 73b of the cannuki that engage with the arm tip portion 83a of the fork are formed. The important notch 71 of the cannuki is cut out in a straight line from one side on the right side of the cannuki 70 toward the left. The first small notch 72 of the cannuki is in the vicinity of the important notch 71 of the cannuki, and is provided on the side of the upper side of the cannuki 70 where the important notch 71 of the cannuki is formed, and faces the back (downward). It is cut out so as to be curved (J-shaped). The second small notches 73a and 73b of the obex are provided near the center of the upper side of the obex 70 and are notched in a concave shape. The second small notch 73a of the cannuki is provided at a position corresponding to the arm tip portion 83a of the fork in the unlocked state. The second small notch 73b of the cannuki is provided at a position corresponding to the arm tip portion 83a of the fork in the locked state. In addition to the cannuki 70, the dial lock A according to the first embodiment has a spring-urged latch 75 (see FIG. 1A and the like) that engages with a storage and a door receiver. ..

The fork 80 (an example of the regulation part of the present invention) engages with the memory rotor 40 and the cannuki 70. The fork 80 has a fork shaft 81, a comb-shaped fork main body 82 connected to the fork shaft 81, and a fork arm 83 extending from the fork shaft 81. The arm portion 83 of the fork has a bent portion 83b in order to avoid a collision with the crank 110. The main body 82 of the comb-shaped fork has four fine teeth. The fork tooth tip 82a, which is the tip of the thin tooth, has a triangular protrusion and engages with the notch 42a of the memory rotor. In the fork 80, when the number displayed on the display window 21 of the dial is an unlocking code, the tip portion 82a of the tooth of the fork and the notch portion 42a of the memory rotor engage with each other. When the number displayed on the display window 21 of the dial is an unlocking code, the arm tip portion 83a of the fork does not engage with any of the second small notches 73a and 73b of the cannuki. On the other hand, when the number displayed on the dial display window 21 of the fork 80 is a number other than the unlocking code, the fork 80 is disengaged from the fork tooth tip 82a and the memory rotor notch 42a. The shaft 81 of the above is used as a rotation axis, and the shaft 81 is rotated in a direction away from the memory rotor 40 (downward). As a result, the arm tip portion 83a of the fork engages with the second small notches 73a and 73b of the cannuki to restrict the slide of the cannuki 70. In the dial lock A, when the number displayed on the dial display window 21 is a number other than the unlocking code, the fork arm tip 83a engages with the second small notch 73b of the obex. However, the slide of the cannuki 70 is restricted (see FIG. 7 (c)). Here, normally, in the unlocked state, the unlocking code is displayed on the display window 21 of the dial. Therefore, in the unlocked state, the arm of the fork unless a number other than the unlocking code is displayed on the display window 21 of the dial. The tip 83a does not engage with the second small notch 73a of the lock.

The drive shaft 90 constitutes a part of the operation unit of the present invention, and slides the cannuki 70 in conjunction with the center cam 100 that engages with the center cam 100 and the cannuki 70 and engages with the knob 60. The drive shaft 90 includes a fan-shaped drive shaft main body 93, a drive shaft recess 94 that engages with the tip convex portion 101 of the center cam, a large protrusion 91 of the drive shaft that engages with the important notch 71 of the cannuki, and a cannuki first. It has a small protrusion 92 on the drive shaft that engages with one small notch 72. The recess 94 of the drive shaft is formed by an elongated recess formed on the surface of the main body 93 of the drive shaft. The large protrusion 91 of the drive shaft is formed by a protrusion protruding from the back surface of the main body 93 of the drive shaft. The small protrusion 92 of the drive shaft is formed by a protrusion smaller than the large protrusion 91 of the drive shaft, which protrudes from the back surface of the main body 93 of the drive shaft.

The center cam 100 constitutes a part of the operation unit of the present invention, engages with the drive shaft 90 and the knob 60, and slides the cannuki 70. Further, the center cam 100 comes into contact with the crank 110 and slides the dial shaft 30 via the crank 110. The center cam 100 has a disk portion 102 of the center cam in contact with the crank 110, a shaft 103 of the center cam that engages with the knob 60, and a tip convex portion 101 of the center cam that engages with the drive shaft 90. The disk portion 102 of the center cam has a substantially elliptical shape with a non-constant distance from the center (axis of the center cam shaft) to the circumference, and is in contact with the crank contact portion 111a of the crank 110 in the free setting dial state. The shaft 103 of the center cam rises from the center of the disk portion 102 of the center cam to the surface side, and the tip side is composed of a flat shaft and engages with the knob 60. The tip convex portion 101 of the center cam is formed of a flat protrusion protruding from the center of the disk portion 102 of the center cam on the back surface side, and engages with the concave portion 94 of the drive shaft.

The crank 110 (an example of the switching unit of the present invention) moves the dial shaft 30 to the forward position in the unlocked state and the freely set dial state, and moves the dial shaft 30 to the return position in other states. The crank 110 is provided at a rod-shaped crank body 111, a crank branch 112 branching from the crank body 111, and a branch where the crank body 111 and the crank branch 112 branch, and extends in the depth direction of the case 10. It has a shaft 113. The crank 110 is provided at the tip of the crank body 111, and urges the crank 110 so that the crank contact portion 111a that abuts on the disc portion 102 of the center cam is in contact with the circumference of the disc portion 102 of the center cam. It is urged by the crank SP (see FIG. 7).

The switching shaft 120 changes the position of the crank 110 to switch between the fixed dial state and the free setting dial state. The switching shaft 120 includes a main body 121 of the switching shaft extending in the front-rear direction of the dial lock A, an operating portion 122 of the switching shaft provided at the base end of the main body 121 of the switching shaft, and a tip of the main body 121 of the switching shaft. It has an engaging portion 123 of the switching shaft provided in the above. The operation unit 122 of the switching shaft is exposed from the back surface of the case 10 and receives the rotation operation of the switching shaft 120. The engaging portion 123 of the switching shaft has a recess for accommodating the tip end portion of the crank branch portion 112 in the free setting dial state. In the fixed dial state, the engaging portion 123 of the switching shaft has a recess that turns its back toward the crank branch portion 112 and does not accommodate the tip portion of the crank branch portion 112 (see FIGS. 10 and 11).

The tactile spring 140 generates a feel (click feeling) when the dial 50 is rotated in contact with the valley portion 53 of the dial (see FIG. 12). The tactile spring 140 has a main body portion 141 of the tactile spring, an arm 142 of the tactile spring, and a claw portion 143 of the tactile spring. The body portion 141 of the tactile spring is U-shaped along the rear wall 11 of the case, the left wall 13 of the case, and the right wall 12 of the case, and supports the arm 142 of the tactile spring. Four arms 142 of the tactile spring are raised from the main body 141 of the tactile spring according to the number of dials 50. The claw portion 143 of the tactile spring is formed of a protrusion provided at the tip end portion of the arm 142 of the tactile spring, and is usually fitted in the valley portion 53 of the dial.

The search spring 150 performs a number search in cooperation with other parts such as the search arm 160 during the number search (see FIGS. 12 and 13). The search spring 150 includes a main body portion 151 of the search spring, a shaft portion 152 of the search spring, an arm 153 of the search spring, and a tip portion 154 of the search spring. The main body portion 151 of the search spring extends in the left-right direction and supports the shaft portion 152 of the search spring raised from both ends and the arm 153 of the search spring raised between the shaft portions 152 of the search spring. The shaft portion 152 of the search spring is rotatably supported by the case 10. Four arms 153 of the search spring are raised from the main body 151 of the search spring according to the number of memory rotors 40. The tip portion 154 of the search spring is formed of a protrusion provided on the tip portion of the arm 153 of the search spring, and is fitted into the notch portion 41a for searching of the memory rotor 40 at the time of number search.

At the time of number search, the search arm 160 slides in the vertical direction to rotate the search spring 150 to perform number search (see FIGS. 12 and 13). The search arm 160 is provided on the main body portion 161 of the search arm, the first engaging portion 162 of the search arm provided on the base end side (upper side) of the main body portion 161 of the search arm, and the tip end side (lower side) of the search arm. It has a second engaging portion 163 of the obtained search arm. The main body portion 161 of the search arm is composed of a rod-shaped member extending in the vertical direction, and is curved at the central portion so as not to come into contact with the fork 80. The first engaging portion 162 of the search arm engages with the main body portion 151 of the search spring so as to sandwich the main body portion 151 of the search spring, and rotates the search spring 150 at the time of number search. The second engaging portion 163 of the search arm engages with the tip protrusion 172 of the cylinder provided at the tip of the cylinder 170. The second engaging portion 163 of the search arm has a rectangular search arm receiving hole 163a that receives the tip protrusion 172 of the cylinder. When the search key 200 is rotated 90 degrees clockwise, the tip protrusion 172 of the cylinder housed in the receiving hole 163a of the search arm pushes the wall of the receiving hole 163a of the search arm as the cylinder 170 rotates. The search arm 160 slides upwards. When the search key 200 is rotated 90 degrees counterclockwise, the tip protrusion 172 of the cylinder housed in the receiving hole 163a of the search arm pushes the wall of the receiving hole 163a of the search arm as the cylinder 170 rotates. The search arm 160 slides down. The search arm 160 is urged downward by the search arm SP.

The cylinder 170 (inner cylinder) has a keyhole, and the search key 200 is inserted and rotated when searching for a number. The tip of the cylinder 170 is provided with a tip protrusion 172 of the cylinder, which is housed in a receiving hole 163a of the search arm.

The fork holding plate 180 is fixed to the case 10 with screws to prevent the fork 80 from rising.

The protector 190 covers the periphery of the dial 50, particularly between the dial 50 and the dial 50, and suppresses the intrusion of dust and the like.

<Operation>
Next, the operation of the dial lock A will be described while supplementing the configuration. In the operation description, locking / unlocking in the fixed dial state, locking / unlocking in the free setting dial state, and number search will be described.

<Locking in fixed dial state>
FIG. 7 shows an operation explanatory view (1) of the dial lock according to the first embodiment in a fixed dial state. FIG. 7A shows a stick, a crank, a center cam, a fork, and the like in a fixed dial state and an unlocked state. FIG. 7B shows a stick, a crank, a center cam, a fork, and the like in a fixed dial state and a state between an unlocked state and a locked state. FIG. 7C shows a stick, a crank, a center cam, a fork, and the like in a fixed dial state and a locked state. 7 (b) and 7 (c) are also operation explanatory diagrams in the free setting dial state. That is, FIG. 7B shows a cannuki, a crank, a center cam, a fork, and the like in a free setting dial state and a state between an unlocked state and a locked state. Further, FIG. 7C shows a cannuki, a crank, a center cam, a fork, etc. in the freely set dial state and the locked state. In FIG. 7, the upper view shows a front view, and the lower view shows a perspective view. FIG. 8 shows an operation explanatory view (2) of the dial lock according to the first embodiment in a fixed dial state. FIG. 8A shows a stick, a crank, a center cam, a fork, and the like in a fixed dial state and a state between an unlocked state and a locked state. FIG. 8B shows an obex, a crank, a center cam, a fork, etc. in a fixed dial state and a locked state. In FIG. 8, the upper view shows a front view, and the lower view shows a side view. FIG. 9 shows an operation explanatory view (3) of the dial lock according to the first embodiment in a fixed dial state or a freely set dial state. FIG. 9A shows the relationship between the obex and the drive shaft in the fixed dial state, the freely set dial state, and the unlocked state. FIG. 9B shows the relationship between the obex and the drive shaft in the fixed dial state or the freely set dial state, and the state between the unlocked state and the locked state. FIG. 9C shows the relationship between the obex and the drive shaft in the fixed dial state, the freely set dial state, and the locked state. FIG. 10 shows an operation explanatory view (4) of the dial lock according to the first embodiment in a fixed dial state or a freely set dial state. FIG. 10A shows the relationship between the crank and the center cam in the freely set dial state and the locked state. FIG. 10B shows the relationship between the crank and the center cam in the fixed dial state and the locked state. In FIG. 10, the upper view shows a front view, and the lower view shows a rear view. FIG. 11 shows an operation explanatory diagram of the dial lock according to the first embodiment in the free setting dial state. FIG. 11A shows the relationship between the crank and the switching shaft in the freely set dial state and the locked state. FIG. 11B shows the relationship between the crank and the switching shaft in the free setting dial state and the unlocked state. In FIG. 11, the upper view shows a front view, and the lower view shows a perspective view. The lower view of FIG. 11B shows the tip 82a of the teeth of some forks for convenience of explanation.

In the fixed dial state, the unlock code, which is a combination of dial codes to be unlocked, is fixed and used. First, the unlocking code used in the fixed dial state is set. For example, when the unlocking code is set to "9876", the switching shaft 120 is in the free setting position (the operation unit 122 of the switching shaft is set to the free conversion setting (see the lower diagram in FIG. 10A). )), "9876" is displayed on the dial display window 21. In the unlocked state of the free setting dial state, the dial 50 and the memory rotor 40 are not engaged, and both rotate independently (see FIGS. 5 (a) and 11 (b)). Therefore, the tip portion 82a of the tooth of the fork is engaged with the notch portion 42a of the memory rotor, but the dial 50 can rotate freely (see the lower view of FIG. 11B).

Next, in a state where "9876" is displayed on the display window 21 of the dial, the switching shaft 120 is in a fixed position (a state in which the operation unit 122 of the switching shaft is fixed (see the lower figure of FIG. 10B)). ). When the operation unit 122 of the switching shaft is operated and the switching shaft 120 rotates, the position of the crank 110 changes. In the free setting dial state, the engaging portion 123 of the switching shaft accommodates the tip end portion of the crank branch portion 112 in the recess and engages with the tip end portion of the crank branch portion 112 (see FIG. 11B). When the switching shaft 120 rotates and is in the fixed dial state, the concave portion turns its back to the crank branch portion 112, and the tip portion of the crank branch portion 112 is housed in the concave portion of the engaging portion 123 of the switching shaft. After being released from the state, the crank branch portion 112 is pushed to the left by the engaging portion 123 of the switching shaft (see FIG. 11A). When the crank branch portion 112 is pushed, the crank 110 rotates clockwise around the crankshaft 113. As the crank 110 rotates, the dial shaft 30 slides to the right. That is, the dial shaft 30 moves from the forward movement position to the reverse movement position. In the fixed dial state, unlike the free setting dial state, the tip portion of the crank branch portion 112 is released from the state of being housed in the recess of the engaging portion 123 of the switching shaft, and the engaging portion 123 of the switching shaft releases the crank branch portion 112. Is pushed to the left to fix the dial shaft 30 at the return position (see FIGS. 5 (b) and 11 (a)). At the return position, the dial shaft 30 moves to the right (see FIGS. 5 (b) and 11 (a)), and the dial 50 and the memory rotor 40 rotate together, so that the unlocking code is fixed. Will be. The forward movement position is a position where the dial shaft 30 has moved to the left, and is also a position where the dial 50 and the memory rotor 40 can rotate independently. The recovery position is a position where the dial shaft 30 is moved to the right, and is also a position where the dial 50 and the memory rotor 40 rotate together.

When the knob 60 rotates counterclockwise from "OPEN" to "CLOSE", the center cam 100 that engages with the knob 60 rotates, and the drive shaft 90 that engages with the center cam 100 rotates. .. The large protrusion 91 of the drive shaft is slidably housed in the important notch 71 of the cannuki, and the small protrusion 92 of the drive shaft is slidably housed in the first small notch 72 of the cannuki (FIGS. 7 and 9). reference). Further, the cannuki 70 is allowed to slide only in the left-right direction. When the drive shaft 90 rotates in such a state, the drive shaft 90 rotates with the large protrusion 91 of the drive shaft as the rotation axis. The small protrusion 92 of the drive shaft moves in the first small notch 72 of the obex that curves toward the back in the order of the back side, the entrance side, and the back side. On the other hand, the large protrusion 91 of the drive shaft moves in the linear notch 71 of the cannuki in the order of the back side, the center, and the entrance side. In other words, the rotation of the drive shaft 90 causes the cannuki 70 to slide in the left-right direction.

When the locking is completed, the knob 60 needs to be rotated to the "CLOSE" position, and the number displayed on the dial display window 21 needs to be a number other than the unlocking code "9876". For example, when the number displayed on the dial display window 21 is "1234", the dial 50 and the memory rotor 40 rotate, and the tip portion 82a of the fork tooth and the notch portion 42a of the memory rotor are engaged with each other. It is released (see FIG. 8B). The fork 80 rotates in a direction away from the memory rotor 40 (downward) with the shaft 81 of the fork as a rotation axis. As a result, the tip end portion 82a of the tooth of the fork rides on the outer peripheral surface of the large cylindrical portion 42 of the memory rotor. Further, the arm tip portion 83a of the fork engages with the second small notch 73b of the cannuki, and the sliding of the cannuki 70 is restricted (see FIG. 7C). By restricting the slide of the cannuki 70, the rotation of the drive shaft 90, the center cam 100, and the knob 60 that engage with the cannuki 70 is also restricted. With the above, the locking in the fixed dial state is completed.

<Unlocking in fixed dial state>
In the locked state, a number other than the unlocking code "9876" (for example, "1234") is displayed on the display window 21 of the dial. Therefore, first, the dial 50 is operated, and the unlocking code "9876" is displayed on the display window 21 of the dial. When the dial 50 is operated, the dial 50 and the memory rotor 40 rotate together. When the unlocking code "9876" is displayed on the display window 21 of the dial, the tip portion 82a of the tooth of the fork engages with the notch portion 42a of the memory rotor. As a result, the engagement between the fork arm tip portion 83a and the second small notch 73b of the cannuki is released, and the cannuki 70 can be slid. Since the cannuki 70 can be slid, the drive shaft 90, the center cam 100, and the knob 60 that engage with the cannuki 70 can also be rotated. With the above, unlocking in the fixed dial state is completed.

<Locking in free setting dial state>
In the free setting dial state, the unlocking code, which is a combination of dial codes to be unlocked, can be freely set. The user can set an arbitrary number to be used as the unlocking code for each use. For example, when the unlocking code is "0000", "0000" is displayed on the display window 21 of the dial, and the knob 60 is rotated counterclockwise to "CLOSE". When the knob 60 rotates, the center cam 100 that engages with the knob 60 rotates, and the outer peripheral surface of the disk portion 102 of the center cam pushes the crank contact portion 111a to the left. When the crank contact portion 111a is pushed, the crank 110 rotates clockwise around the crankshaft 113. The base end portion of the crank body portion 111 (the end opposite to the crank contact portion 111a) is engaged with the receiving portion 31 of the dial shaft, and the dial shaft 30 moves to the right as the crank 110 rotates. Slide. That is, the dial shaft 30 moves from the forward movement position to the reverse movement position.

When the dial shaft 30 slides to the right, the memory rotor 40 also slides to the right. When the memory rotor 40 slides to the right, the gear portion 44 (see FIG. 5) of the memory rotor engages with the gear portion 52a of the dial. Further, the tip portion 82a of the tooth of the fork is engaged with the notch portion 42a of the memory rotor, and in this state, the memory rotor 40 and the dial 50 are engaged. That is, the memory rotor 40 and the dial 50 rotate integrally (see FIG. 5B). Further, in a state where the tip portion 82a of the fork tooth is engaged with the notch portion 42a of the memory rotor, the arm portion 83 of the fork is raised upward, and the arm tip portion 83a of the fork is the second of the cannuki. Not engaged with the small notches 73a and 73b. Therefore, by rotating the knob 60, the cannuki 70 can be slidable (see FIG. 7B).

When the locking is completed, the knob 60 needs to be rotated to the "CLOSE" position, and the number displayed on the dial display window 21 needs to be a number other than the unlocking code "0000". For example, when the number displayed on the dial display window 21 is "1234", the dial 50 and the memory rotor 40 rotate, and the fork tooth tip 82a and the memory rotor notch 42a are engaged with each other. It will be released. The fork 80 rotates in a direction away from the memory rotor 40 (downward) with the shaft 81 of the fork as a rotation axis. As a result, the tip end portion 82a of the tooth of the fork rides on the outer peripheral surface of the large cylindrical portion 42 of the memory rotor. Further, the arm tip portion 83a of the fork engages with the second small notch 73b of the cannuki, and the sliding of the cannuki 70 is restricted (see FIG. 7C). By restricting the slide of the cannuki 70, the rotation of the drive shaft 90, the center cam 100, and the knob 60 that engage with the cannuki 70 is also restricted. With the above, the locking in the free setting dial state is completed.

<Unlocking in the free setting dial state>
In the locked state, a number other than the unlocking code "0000" (for example, "1234") is displayed on the display window 21 of the dial. Therefore, first, the dial 50 is operated, and the unlocking code "0000" is displayed on the display window 21 of the dial. When the dial 50 is operated, the dial 50 and the memory rotor 40 rotate together. When the unlocking code "0000" is displayed on the display window 21 of the dial, the tip portion 82a of the tooth of the fork engages with the notch portion 42a of the memory rotor. As a result, the engagement between the tip of the arm portion 83 of the fork and the second small notch 73b of the cannuki is released, and the cannuki 70 can be slid. Since the cannuki 70 can be slid, the drive shaft 90, the center cam 100, and the knob 60 that engage with the cannuki 70 can also be rotated. With the above, unlocking in the free setting dial state is completed.

<Number search>
FIG. 12 shows an explanatory diagram (1) when performing a number search for the dial lock according to the first embodiment. FIG. 12 shows a front view in a state where the search key is inserted in the cylinder. FIG. 13 shows an explanatory diagram (2) when performing a number search for the dial lock according to the first embodiment. FIG. 13 shows a rear perspective view with the search key inserted in the cylinder.

The dial lock A can search for the unlocking number by using the search key 200 even if the user forgets the unlocking number. When the search key 200 is inserted into the keyhole of the cylinder 170 and rotated clockwise by about 90 degrees, the tip protrusion 172 of the cylinder rotates. The tip protrusion 172 of the cylinder is housed in the receiving hole 163a of the search arm. When the tip protrusion 172 of the cylinder rotates, the tip protrusion 172 of the cylinder housed in the receiving hole 163a of the search arm of the second engaging portion 163 of the search arm pushes the wall of the receiving hole 163a of the search arm, and the search arm. 160 slides upwards. Further, the first engaging portion 162 of the search arm is engaged with the main body portion 151 of the search spring so as to sandwich the main body portion 151 of the search spring. When the search arm 160 slides upward, the search spring 150 rotates. When the search spring 150 rotates, the tip portion 154 of the search spring comes into contact with the outer peripheral surface of the small cylindrical portion 41 of the memory rotor. With the above, the number search is ready.

When the dial 50 is rotated, the memory rotor 40 is also rotated. The tip portion 154 of the search spring traces the outer peripheral surface of the small cylindrical portion 41 of the memory rotor. When the tip portion 154 of the search spring reaches the position of the notch portion 41a for search provided in the small cylindrical portion 41 of the memory rotor, the tip portion 154 is housed in the notch portion 41a for search, and the memory rotor 40 and the dial 50 are accommodated. Rotation is restricted. When the rotation of the memory rotor 40 and the dial 50 is restricted, the number displayed on the dial display window 21 becomes the unlocking code.

<Effect>
By providing a switching portion such as a switching shaft 120, the dial lock A according to the first embodiment can be used by switching between a free setting dial state and a fixed dial state according to an application and a purpose. Further, in the dial lock A according to the first embodiment, the switching shaft 120 is arranged between the dial 50 and the operating portions such as the knob 60, the drive shaft 90, and the center cam 100, and the crank 110 is the crank main body portion. It is composed of 111 and a crank branch portion 112, and is configured so that the crank 110 can rotate in conjunction with an operation unit such as a dial shaft 30, a switching shaft 120, and a drive shaft 90. The crank 110 is directly interlocked with an operation unit such as a switching shaft 120 or a drive shaft 90 without using other parts as in the prior art (for example, "switching member (9)" described in Patent Document 1). Can rotate. That is, the dial lock A according to the first embodiment has a configuration in which the switching means for switching between the free setting dial function and the fixed dial function is simpler than the conventional one.

Further, in the dial lock A according to the first embodiment, the cannuki 70 slides. The cannuki 70 may rotate, but by sliding, the dial lock A can be used for a storage or a door that is difficult to attach with the rotating cannuki.

Further, the dial lock A according to the first embodiment can search for an unlocking code. Further, in the dial lock A according to the first embodiment, since the switching shaft 120 is arranged between the dial 50 and the operation unit such as the drive shaft 90, a new space is provided next to the operation unit such as the drive shaft 90. Is formed, and the cylinder 170 is arranged in this space. That is, in the dial lock A according to the first embodiment, the switching shaft 120 and the cylinder 170 are arranged side by side by setting the space created by the simple configuration of the switching shaft 120 as the installation location of the cylinder 170. be able to. As a result, for example, in the lock described in Patent Document 1, the "knob" and the "search cam" are dispersedly arranged on both sides of the "dial ring". Has been miniaturized.

Further, the dial lock A according to the first embodiment includes a protector 190. By providing the protector 190, it is possible to prevent dust and the like from entering between the dial 50 and the dial 50. As a result, it is possible to suppress the occurrence of a malfunction in the rotation of the dial 50 and the memory rotor 40.

<Second Embodiment>
The dial lock A according to the second embodiment is different from the first embodiment and includes a rotatable cannuki 700. FIG. 14 shows an exploded perspective view of the dial lock according to the second embodiment. In the dial lock A according to the second embodiment, the tip convex portion 1001 of the center cam of the center cam 1000 is formed longer than that of the first embodiment, and is engaged with the engagement hole 701 of the obex. In other words, in the dial lock A according to the second embodiment, the drive shaft 90 is not used, and the center cam 1000 and the cannuki 700 are directly engaged with each other. Further, a notch 15a is formed at a corner portion (lower left) of the case 10 so that the cannuki 700 can rotate.

The dial lock A according to the second embodiment also has the same effect as the dial lock A according to the first embodiment described above, and is used by switching between the free setting dial state and the fixed dial state according to the intended use and purpose. be able to. Further, in the dial lock A according to the second embodiment, the switching shaft 120 is arranged between the dial 50 and the operation unit such as the knob 60 and the center cam 1000, and the crank 110 is the crank body portion 111 and the crank branch. It is composed of a portion 112, and is configured so that the crank 110 can rotate in conjunction with an operation portion such as a dial shaft 30 and a switching shaft 120. The crank 110 can be rotated directly in conjunction with an operation unit such as the switching shaft 120 without using other parts as in the prior art (for example, "switching member (9)" described in Patent Document 1). .. That is, the dial lock A according to the second embodiment has a configuration in which the switching means for switching between the free setting dial function and the fixed dial function is simpler than the conventional one.

<Third Embodiment>
FIG. 15 shows an assembled perspective view of the search arm used for the dial lock according to the third embodiment and the search arm assist. FIG. 16 shows an exploded perspective view of the search arm used for the dial lock according to the third embodiment and the search arm assist.

Although the overall view is omitted, in the dial lock A according to the third embodiment, unlike the first embodiment, the cylinder 170 is configured so that the inner cylinder can be replaced. Along with this, the dial lock A according to the third embodiment further includes a detachable key and a search arm assist 210. Further, the dial lock A according to the third embodiment has a simpler configuration because the cylinder cap 171 covering the front surface of the cylinder 170 in the first embodiment is omitted.

The detachable key (also called the inner cylinder replacement key) is used to replace the inner cylinder (also called the lock). In the locked state, the inner cylinder can be pulled out by inserting the detachable key into the cylinder 170 and rotating it clockwise by about 90 degrees.

The search arm assist 210 is connected to the search arm 160 and slides together with the search arm 160 to rotate the search spring 150 to perform a number search when searching for a number. The inner cylinder replaceable cylinder 170 is designed to be shorter than the cylinder 170 (non-inner cylinder replaceable type) according to the first embodiment. In the dial lock A according to the first embodiment, the tip protrusion 172 of the cylinder at the tip of the cylinder 170 (non-inner cylinder exchange type) is engaged with the receiving hole 163a of the search arm, but the dial lock according to the third embodiment. In A, the cylinder 170 (inner cylinder exchange type) is short, and the tip protrusion 172 of the cylinder cannot directly engage with the receiving hole 163a of the search arm (see FIG. 13). In the dial lock A according to the third embodiment, the tip protrusion 172 of the cylinder engages with the search arm assist 210, so that the search arm 160 slides as the cylinder 170 (inner cylinder exchange type) rotates. Will be done.

The search arm assist 210 is located above the engagement hole 211 of the search arm assist and the receiving hole 163a of the search arm that engage with the cylindrical protrusion 164 of the search arm provided near the center of the main body portion 161 of the search arm. A flexible search arm that is connected between the U-shaped search arm assist notch 212 that accommodates the tip protrusion 172 of the cylinder, the search arm assist engagement hole 211, and the search arm assist notch 212. It has an assist spring portion 213.

A cylindrical protrusion 164 of the search arm is inserted into the engagement hole 211 of the search arm assist, and a CA retaining ring for suppressing disconnection is fixed to the tip of the cylindrical protrusion 164 of the search arm, so that the search arm assist 210 can be operated. It is fixed to the search arm 160.

The search arm 160 is pushed downward by the urging of the search arm SP (not shown) (see FIGS. 12 and 13). When the detachable key is inserted into the keyhole of the cylinder 170 and rotated clockwise by about 90 degrees, the tip protrusion 172 of the cylinder engages with the notch 212 of the search arm assist, and the notch 212 of the search arm assist Push up. In this state, the cylinder 170 (inner cylinder exchange type) can be pulled out. When the cylinder 170 (inner cylinder exchange type) is pulled out, the engagement between the tip protrusion 172 of the cylinder and the notch 212 of the search arm assist is released, and the search arm 160 is moved downward by the urging of the search arm SP. Pushed down. For example, when a new cylinder 170 (inner cylinder exchange type) is inserted, the position of the tip protrusion 172 of the cylinder is deviated from the position of the notch 212 of the search arm assist. Here, since the spring portion 213 of the search arm assist has flexibility, when a new cylinder 170 (inner cylinder exchange type) is inserted, the notch portion 212 of the search arm assist bends to the back side, and the new cylinder When 170 (inner cylinder exchange type) is rotated counterclockwise by about 90 degrees, the tip protrusion 172 of the cylinder engages with the notch 212 of the search arm assist.

The dial lock A according to the third embodiment also has the same effect as the dial lock A according to the first embodiment described above. Further, in the dial lock A according to the third embodiment, the cylinder 170 can be replaced by the detachable key. Further, the search arm 160 can use the same member as the dial lock A according to the first embodiment and the second embodiment. That is, by using the search arm assist 210, for example, the dial lock A according to the first embodiment or the second embodiment can be used as a dial lock using a cylinder 170 having a replaceable inner cylinder.

Although the embodiment of the present invention has been described above, the dial lock according to the present invention can be appropriately modified without departing from the gist of the present invention. Further, the dial lock A according to the embodiment can be combined as much as possible.

A ... Dial lock 10 ... Case 20 ... Surface plate 30 ... Dial shaft 40 ... Memory rotor 50 ... Dial 60 ... Knob 70 ... Crank 80 ... Fork 90・ ・ ・ Drive shaft 100 ・ ・ ・ Center cam 110 ・ ・ ・ Crank 120 ・ ・ ・ Switching shaft 140 ・ ・ ・ Tactile spring 150 ・ ・ ・ Search spring 160 ・ ・ ・ Search arm 170 ・ ・ ・ Cylinder 180 ・ ・ ・ Fork Press plate 190 ・ ・ ・ Protector 200 ・ ・ ・ Search key 210 ・ ・ ・ Search arm assist

Claims (6)

It has a locked state, an unlocked state, a freely set dial state in which an unlocking code which is a combination of dial codes to be unlocked can be freely set, and a fixed dial state in which a combination of unlocking codes is fixed. It's a dial lock
It is a shaft part that is supported by the housing and can move back and forth in the axial direction, and is in the forward position in the unlocked state and the free setting dial state, and in other states, the locked state and the free setting dial state, and the locked state. And the shaft part that becomes the return position in the fixed dial state and the unlocked state and the fixed dial state,
Multiple rotor parts rotatably supported by the shaft part,
A plurality of disk-shaped dial portions that are rotatably supported by the shaft portion, engage with the rotor portion, and have a dial code on the peripheral surface, and in the unlocked state and the freely set dial state, the rotor portion The dial part that is disengaged and rotates independently of the rotor part, and in other states, the dial part that engages with the rotor part and rotates together with the rotor part.
An operation unit that accepts the locking operation in the locked state and the unlocking operation in the unlocked state and moves the bar,
In conjunction with the rotor part and the operation part, if the dial part is not the unlock code in the locked state, the regulation part that regulates the unlocking operation of the operation part, and
It is equipped with a switching unit that works with the shaft unit and the operation unit to switch between the free setting dial state and the fixed dial state.
The switching portion is a switching shaft portion located between the dial portion and the operation portion and supported by the housing, and a crank portion supported by the housing and rotating in conjunction with the switching shaft portion or the operation portion. A crank portion having a crank body portion extending from the shaft portion toward the operation portion and a crank branch portion extending from the middle of the crank body portion toward the switching shaft portion.
The crank part is a dial lock that moves the shaft part to the forward movement position in the unlocked state and the freely set dial state, and moves the shaft part to the return position in other states. In the unlocked state, the locked state, and the fixed dial state, the switching part rotates when the tip of the crank branch part is pushed by the switching shaft part, and pushes the shaft part at the base end of the main body part to push the shaft part. In the unlocked state and the free setting dial state, the tip of the crank branch is not pushed by the switching shaft, and the shaft is moved to the forward position by the urging force of the shaft to lock the crank. In the free setting dial state, the tip of the crank body is pushed by the operation part to rotate the crank, and the shaft is pushed by the base end of the crank body to move the shaft to the return position. Dial lock described in. The dial lock according to claim 1 or 2, wherein the operation unit linearly moves the bar according to the locking operation and the unlocking operation. The operation unit has an engaging protrusion that engages with the bar, a drive shaft portion that is supported by the housing, a center cam portion that is connected to the drive shaft portion and pushes the tip of the crank body portion, and a center cam portion. Including the knob part to be connected,
The bar is composed of a linear plate member, which is cut out in the longitudinal direction from one short side, and is cut out in the through groove of the bar on which the drive shaft slides, and in the vicinity of the through groove and on one long side. The dial lock according to claim 3, further comprising a notch for supporting a bar that supports an engaging protrusion of a drive shaft portion. A search cylinder where a search key for searching the unlock code is inserted, and a search cylinder
A search unit that controls the rotation of the rotor unit to search for the unlocking code when the search key is inserted into the search cylinder unit and enters the search state is further provided.
The dial lock according to any one of claims 1 to 4, wherein the search cylinder unit is arranged side by side with the operation unit. The dial lock according to any one of claims 1 to 5, further comprising a cover portion that covers between the dial portion and the dial portion.

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