JP7833792B2 - Storage lock and storage - Google Patents

Description

This invention relates to storage units such as delivery boxes, lockers, safes, and warehouses, and to locks installed in such storage units.

Children can get trapped inside storage units such as delivery boxes while playing. Therefore, various locks with anti-trap features that allow trapped children to escape have been proposed.

Japanese Patent Publication No. 2023-062275

However, with conventional technology, it was difficult for children to operate in the dark, and there was a risk that children might not be able to escape on their own.

This invention was made in consideration of these circumstances, and aims to provide a storage lock and storage unit that can be unlocked from inside the storage unit with extremely easy operation.

The storage lock according to the present invention comprises a cylinder lock that locks and unlocks by rotating the cylinder around an operating shaft, a locking cam detachably fitted onto the operating shaft, a fastener detachably attached to the tip side of the locking cam's position, and a removal means for manually pulling out the fastener.

In another embodiment of the present invention, the removal means is a tagged string connected to the fastener.

Furthermore, in yet another embodiment of the present invention, a pin hole is drilled in the operating shaft portion on the side facing the tip of the locking cam, the fastener is a pin inserted into the pin hole, and a washer is provided between the locking cam and the pin, with a groove on its plate surface aligned with the direction in which the pin is inserted into the pin hole. The washer is rotated after the pin is inserted to tighten the pin.

Furthermore, in yet another embodiment of the present invention, the pinholes are aligned vertically when the storage lock is locked.

Furthermore, in yet another embodiment of the present invention, the pin is a snap pin.

Furthermore, the storage unit according to the present invention comprises a storage unit lock according to any of these embodiments, a door that is locked by the storage unit lock, and a housing that allows items to be put in and taken out through the door.

This invention provides a storage lock and storage unit that can be unlocked from inside the storage unit with extremely easy operation.

A schematic perspective view showing an example of a storage unit equipped with a storage lock according to the first embodiment. An exploded view of the configuration of the cylinder lock, which is the locking mechanism of the storage lock according to the first embodiment. (A) to (D) Front view of the cylinder lock with the knob removed. An explanatory diagram showing how to unlock a storage lock using a key. (A) Perspective view of the storage lock seen from the back side, (B) Partially exploded view of Figure 5(A). (A), (B) Diagrams showing modified versions of the fastener. (A) to (C) Perspective views of a cylinder lock illustrating the function of the washer. (A), (B) Side views of a cylinder lock illustrating the function of the washer. (A) Rear view of the storage lock in the unlocked state, (B) Rear view of the storage lock in the locked state. (A) to (C) Diagrams illustrating the procedure for unlocking the storage box lock from inside the storage box. A front view of the storage lock according to the second embodiment. A magnified partial perspective view showing the area around the rotary mechanism of the stocker lock according to the second embodiment. A rear perspective view of the storage lock according to the second embodiment in the unlocked state. A rear perspective view of the storage lock according to the second embodiment in the locked state.

The embodiments of the present invention will be described below with reference to the attached drawings. In the following description, the up and down orientations refer to the orientation of a storage unit installed on the ground with its door standing upright from the ground, and equipped with a storage unit lock.

(First Embodiment)
Figure 1 is a schematic perspective view showing an example of a storage unit 100 equipped with a storage lock 10 according to the first embodiment.
The storage unit 100 is, for example, a delivery box 100a, as shown in Figure 1. The delivery box 100a may be a freestanding type for detached houses or a wall-mounted type for apartment buildings. The delivery box 100a may also be a type integrated with the entrance door. In addition, the storage lock 10 can be applied to other items besides the delivery box 100a, such as lockers, safes, or warehouses.

In the first embodiment, the storage unit 100, as shown in Figure 1, for example, has a hinged door 12 equipped with a storage unit lock 10, attached to the housing 11. Mail is inserted and removed by opening this door 12. The door 12 has a rectangular hole (not shown) for fitting the storage unit lock 10. The storage unit lock 10 is fixed to the door 12 with screws or the like after a fixing base 13 (Figure 5(A)) is fitted into this rectangular hole. An outer plate 14 is fitted onto the exposed portion of the fixing base 13 from the outer side of the door 12.

The outer plate 14 is provided with a vertically elongated rectangular recess 15. The edge of this recess 15 protrudes slightly toward the recess 15, forming a handle portion 17 for a person to grip. A cylinder lock 18 is fitted into the outer plate 14 next to the handle portion 17. A knob 21 with a keyhole 19 is fixed to the end of the cylinder lock 18. As will be described later, the cylinder lock 18 can be rotated 90 degrees by pinching the knob 21 by hand. After the delivery person places the mail into the casing 11 and closes the hinged door 12, they rotate the knob 21 90 degrees to lock the storage unit 100.

Figure 2 is an exploded view of the cylinder lock 18, which is the locking mechanism of the storage lock 10 according to the first embodiment. The cylinder lock 18 has a keyhole 19 and is a mechanism that performs locking and unlocking operations by human operation.
As shown in Figure 2, the cylinder lock 18 has a cylindrical rotary 24 with a keyhole 23 on its top surface, which is fitted onto a knob 21 so that the rotation axes of the keyhole 23 and the keyhole 19 are aligned. Several tumblers 25 are provided protruding from the circumferential surface of the rotary 24. Each tumbler 25 is pushed into the rotary 24 when pushed toward the center C of the cylinder.

Furthermore, at one of the two end faces of the rotary 24, the end where the knob 21 is not fixed, a cylindrical operating shaft portion 26, smaller in diameter than the rotary 24, is connected to the rotary 24 with its cylindrical center C aligned. The rotary 24 and the operating shaft portion 26 may be integrally formed.

A plate-shaped locking cam 28 having an axial hole 29 is fitted onto the operating shaft portion 26. A locking projection 20 for rotating the locking cam 28 is provided on the side of the operating shaft portion 26. The operating shaft portion 26 and the locking projection 20 are fitted into the axial hole 29, which has a circular hole sized to fit the operating shaft portion 26 and a side hole 31 into which the locking projection 20 fits, integrated into the axial hole 29. When the knob 21 is rotated around the keyhole 19, the tumbler 25 and the operating shaft portion 26 rotate around the keyhole 23, and the locking cam 28 fixed to the operating shaft portion 26 is also pushed by the locking projection 20 and rotates around the keyhole 23. The hinged door 12 is locked when the locking cam 28 rotates and fits into a cam housing hole (not shown) provided in the housing 11. In addition, a pin hole 30 is provided on the operating shaft portion 26 on the tip side of the position of the locking cam 28, penetrating the circumferential surface.

Furthermore, a cylindrical cover 32, which has a larger diameter than the rotary 24, is arranged around the rotary 24. Restricting claws 33 protrude from the inner circumference of the cylindrical cover 32 toward the central axis of the cylindrical cover 32. Each of the restricting claws 33 is positioned to contact the tumbler 25.
Here, Figures 3(A) to 3(D) are front views of the cylinder lock 18 with the knob 21 removed. Figure 3(A) shows the positions of the tumbler 25 and the locking cam 28 when the lock is unlocked. Figure 3(D) also shows the positions of the tumbler 25 and the locking cam 28 when the lock is unlocked. Figures 3(B) and 3(C) show the intermediate states from Figure 3(A) to Figure 3(D) as the lock is displaced.
Figure 4 is a diagram illustrating the method of locking and unlocking the storage lock 10 using the key 34.

As shown in Figure 3(A), the limiting claw 33 has four limiting blocks 33a. When the rotary 24 is rotated clockwise from the unlocked state in Figure 3(A), the side of the tumbler 25 comes into contact with the limiting blocks 33a, preventing further rotation. However, as shown in Figure 4, when the key 34 is inserted from the keyhole 19 of the knob 21 into the keyhole 23 of the rotary 24, the tumbler 25 is retracted into the rotary 24, as shown in Figure 3(B). Therefore, as shown in Figure 3(C), the tumbler 25 no longer comes into contact with the limiting blocks 33a, and the rotary 24 becomes able to rotate in the locking direction. When the rotary 24 rotates 90 degrees around the center C of the cylinder, the tumbler 25 moves beyond the limiting blocks 33a, and no force is applied from the limiting blocks 33a. As a result, as shown in Figure 3(D), the tumbler 25 protrudes to the same height as in the unlocked state in Figure 3(A). At this time, the locking cam 28 rotates 90 degrees together with the rotary 24 and fits into the cam housing hole of the housing 11, locking the hinged door 12.

Furthermore, if the rotary 24 is rotated in the unlocking direction, i.e., counterclockwise, the side of the limiting block 33a strikes the tumbler 25 from the side, obstructing its movement and thus locking it. The unlocking procedure is similar to the locking procedure: inserting the key 34 into the keyhole 23 causes the tumbler 25 to be retracted into the rotary 24, allowing it to rotate in the unlocking direction. Recently, there are also cylinder locks 18 that can be locked simply by rotating the knob 21 in the locking direction, without using the key 34. In this case, even if the delivery person does not have the key 34, the mail can be stored and locked in the stocker 100, preventing theft by passersby who do not have the key 34. Various types of cylinder locks 18 have been known for some time. For example, the shapes of the rotary 24, tumbler 25, and cylindrical cover 32 can be conventionally known shapes. For example, the shape of the tumbler 25 may be a pin shape or other shape, rather than the plate shape shown in Figure 2.

Next, the anti-entrapment mechanism of the storage lock 10 will be explained using Figures 5(A), (B) to 10(A) to (C).
Figure 5(A) is a perspective view of the storage lock 10 as seen from the back side. Figure 5(B) is a partially exploded view of Figure 5(A).
The cylinder lock 18 is fixed to the fixing base 13, as shown in Figures 5(A) and 5(B). The fixing base 13 includes a handle housing 35 for housing the handle 17, a cylinder fixing base 16 for housing and fixing the cylinder lock 18, and a latch housing 37 for housing the latch 36. The shapes of the handle housing 35, cylinder fixing base 16, and latch housing 37 and their arrangement on the fixing base 13 have been diverse in the past and are not limited to the examples shown in Figures 5(A) and 5(B).

The rotary 24 is housed in the cylinder fixing base 16 such that the operating shaft portion 26 and the locking projection 20 pass through the end plate 38 of the cylinder fixing base 16 and protrude into the stocker 100. A washer 39 is fitted onto the operating shaft portion 26 protruding from the end plate 38, along with the locking cam 28. Furthermore, a U-shaped fastener 40 is inserted into the pin hole 30 at the tip of the operating shaft portion 26, which passes through the washer 39.

One end of the rod portion of the fastener 40 is a straight section 41, which is maintained in a straight shape. This straight section 41 is inserted into the pin hole 30. The other end of the rod portion of the fastener 40 is a curved section 44, which is curved and forms two constricted sections 42 and 43 together with the straight section 41. The fastener 40 is a so-called snap pin, formed by the straight section 41 and the curved section 44 into an R-shaped semi-circular arc with an additional ring section 46 added.

The operating shaft portion 26 fits into the semi-circular portion of the fastener 40 and is secured to the fastener 40 by being clamped between the constricted portions 42 and 43 of the fastener 40. This fastener 40 maintains the locking cam 28 and washer 39 in a fitted state on the operating shaft portion 26. Furthermore, the ring portion 46 of the fastener 40 is bent at almost a right angle, rising from the surface on which the R-shaped portion rests. A loop-shaped string 48, through which the pull tag 50 is threaded, passes through this ring portion 46. When the fastener 40 disengages from the pinhole 30, the mechanism releases the locking cam 28 and washer 39 from the operating shaft portion 26.

Here, Figures 6(A) and 6(B) show modified examples of the fastener 40.
The fastener 40 may be a so-called Daruma pin (fastener 40a) having two curved sections 44 arranged symmetrically on the left and right sides instead of the straight section 41 of the snap pin, as shown in Figure 6(A). In this case, the operating shaft section 26 is fitted into the arc between the two constricted sections 42 and 43, and the fastener 40a is secured to the operating shaft section 26 by sandwiching the operating shaft section 26 between the constricted sections 42 and 43. With the Daruma pin-shaped fastener 40a, pulling the string 48 with the tag 50 that is threaded through the loop section 46 of the fastener 40a causes the constricted sections 42 to open to the left and right, and it is released from the operating shaft section 26. In this case, since the fastener 40a is not the type that is inserted into a pin hole 30, it is not necessary to provide a pin hole 30 on the operating shaft section 26.

Furthermore, the fastener 40 may be a clip (fastener 40b) that clamps onto the operating shaft portion 26, as shown in Figure 6(B). The fastener 40b is, for example, an arc-shaped clip through which a string 48 with a tag 50 attached is threaded. When the tag 50 is pulled, the opening angle of the clip increases due to the operating shaft portion 26, causing it to slide off the operating shaft portion 26.

Furthermore, Figures 7(A) to 7(C) are perspective views of the cylinder lock 18 illustrating the function of the washer 39. Figures 8(A) and 8(B) are side views of the cylinder lock 18 illustrating the function of the washer 39. The fastener 40 is installed in the order shown in Figures 7(A) to 7(C). The fastener 40 prevents the locking cam 28 from coming off the operating shaft 26. The washer 39 prevents the locking cam 28 from rattling by eliminating the gap between the fastener 40 and the locking cam 28. As shown in Figure 7(A), the straight portion 41 of the fastener 40 is inserted into the pin hole 30.

A straight groove 49 is carved into the center of the plate surface 47 of the washer 39, and the fastener 40 is inserted into the pin hole 30 along this groove 49. As shown in Figures 7(A) and 8(A), this groove 49 allows the fastener 40 to be smoothly inserted into the pin hole 30 without being obstructed by the washer 39. Once the fastener 40 is inserted into the pin hole 30, the worker presses the operating projection 27 protruding from the circumferential surface of the washer 39 with their finger, thereby rotating the washer 39 perpendicularly around the operating shaft 26, as shown in Figure 7(B).

When the washer 39 rotates at a right angle, as shown in Figures 7(C) and 8(B), the plate surface 47 contacts the fastener 40, pressing it against the side surface of the pinhole 30 and generating friction between them. This pressing prevents the locking cam 28 from wobbling.

Figure 9(A) is a rear view of the stocker lock 10 in the unlocked state, and Figure 9(B) is a rear view of the stocker lock 10 in the locked state. Figures 10(A) to 10(C) are explanatory diagrams showing the procedure for unlocking the stocker lock 10 from inside the stocker 100.
In the unlocked state, as shown in Figure 9(A), the locking cam 28 is aligned vertically, while the fastener 40 is aligned horizontally. On the other hand, in the locked state, as shown in Figure 9(B), the locking cam 28 is aligned horizontally, while the fastener 40 is aligned vertically.

If a child enters the storage unit 100 and it becomes locked, the child will attempt to escape by trying to unlock the storage unit lock 10. Even without prior knowledge of the unlocking method, and even by touch, the child will likely find the string 48 with the tag 50 attached and pull the string 48, along with the tag 50, up, down, left, or right at an early stage. When the string 48 is pulled downwards, the fastener 40 detaches from the operating shaft 26, as shown in Figures 10(A) and 10(B). Then, the locking cam 28, along with the washer 39, detaches from the operating shaft 26, as shown in Figure 10(C). With the locking cam 28 detached, the storage unit lock 10 is unlocked, allowing the trapped child to escape from the storage unit 100. Note that if the tag 50 has an arrow and a label such as "pull," the unlocking action in the event of being trapped will be easier to understand.

Thus, by positioning the pinhole 30 so that it is oriented vertically when the storage lock 10 is locked, the fastener 40 will fall by its own weight once it has disengaged to a certain extent from the pinhole 30. Furthermore, pulling the tag 50 downwards is considered easier for a child than pulling it in other directions. By determining the direction of the pinhole 30 in this way, a child can more easily escape from the storage unit 100. Moreover, not only children, but also pets trapped inside the storage unit 100 are likely to escape if they struggle inside, causing one of their paws to catch on the string 48, resulting in the fastener 40 falling and the pet being able to escape.

Furthermore, by using a snap pin for the fastener 40, there is no need to manually open the ends like with a cotter pin. Simply pressing the fastener 40 against the operating shaft 26 causes it to open on its own, insert into the pinhole 30, and attach to the operating shaft 26. Also, when the operating shaft 26 is fitted into the semi-circular section, almost no force is required to open the fastener 40. Therefore, the clamping force of the fastener 40 does not decrease even after prolonged use, and the fastener 40 will only be pulled out when pulled with appropriate force. Note that the shape of the fastener 40 and the pinhole 30 are not limited to the above example, as long as the fastener 40 can be detached from the pinhole 30 by pulling.

As described above, the storage lock 10 according to the first embodiment can be unlocked from the inside with extremely easy operation. Therefore, even if a child is agitated, or even in a situation where no light is entering, the storage lock 10 can be unlocked quickly by touch and the child can escape from the storage unit 100.

(Second Embodiment)
Figure 11 is a front view of the stocker lock 10a according to the second embodiment. Figure 12 is a magnified partial perspective view of the area around the rotary 24a of the stocker lock 10a according to the second embodiment.
In the first embodiment, a so-called cylinder lock 18 was described as an example of a stocker lock 10, in which the rotation of a rotary 24 is restricted by a tumbler 25 inside a cylindrical cover 32. In the second embodiment, a dial lock was described as an example of a stocker lock 10a, in which the rotation of a rotary 24a is restricted by a lock comb 53 that is displaced by an adjacent row of dials 51.

As shown in Figures 11 and 12, the dial lock, similar to the first embodiment, has the knob 21, operating shaft 26, locking cam 28, and rotary 24a connected so that they are aligned on a coaxial axis of rotation. Therefore, when the knob 21 is rotated by a certain angle in the locking direction, the locking cam 28 rotates and engages with the cam housing hole provided in the housing 11 (Figure 1), locking the storage unit 100. Conversely, when the knob 21 is rotated by a certain angle in the unlocking direction, the locking cam 28 rotates in the reverse direction, disengaging from the cam housing hole and unlocking the unit.

The rotary 24a has a shape in which a semi-cylindrical 24a ₁ is integrally formed around the operating shaft portion 26, and a disc 24a ₂ with a larger diameter than the semi-cylindrical 24a ₁ is integrally formed on the side of the semi-cylindrical 24a ₁ on the side of the fixed base 13a. A limiting projection (first limiting projection) 58 is provided on the circumferential surface of the disc 24a _2. In addition, a limiting projection (second limiting projection) 59 is provided radially on the portion of the operating shaft portion 26 where the semi-cylindrical 24a ₁ is formed. Furthermore, a fastener 40 connected to a string 48 with a tag 50 attached is inserted into the operating shaft portion 26 on the tip side of the locking cam 28, similar to the first embodiment. This fastener 40 may be a snap pin as shown in Figure 12, similar to the first embodiment, or it may be a daruma pin or clip as shown in Figures 6(A) and (B).

Figure 13 is a rear perspective view of the storage lock 10a in the unlocked state.
Figure 14 is a rear perspective view of the storage lock 10a in the locked state.
As shown in Figure 13, the dial array 51 consists of a dial shaft 61 mainly fixed to a dial fixing base 62, four sets of disc-shaped dial plates 63 arranged side by side along the dial shaft 61, and four sets of disc-shaped sleeve plates 64 fixed to one side of each dial plate 63.

Each dial plate 63 rotates independently around the dial axis 61. Each sleeve plate 64 rotates around the dial axis 61 together with the fixed dial plate 63. Each sleeve plate 64 has, for example, a triangular notch 65 on its circumferential surface. A lock comb 53 is positioned near the sleeve plates 64, having triangular projections 66 that fit into each notch 65. The lock comb 53 has the same number of teeth as the sleeve plates 64, with comb teeth 67 that fit between the dial plates 63. The triangular projections 66 are located on these comb teeth 67. When the number sequence for unlocking the dial lock is correct, the notches 65 are arranged in a line, and the triangular projections 66 fit into them.

The base of each comb tooth 67 is connected to the comb shaft 68, integrating them as a lock comb 53. The lock comb 53 is then pivotally supported on the dial fixing base 62 via the comb shaft 68. Therefore, if even one of the numbers for unlocking is not aligned, and the notches 65 are not in a straight line, all the comb teeth 67 cannot fit between the dial plates 63. Only when the number sequence for unlocking is aligned can all the comb teeth 67 fit between the dial plates 63, and as shown in Figure 13, the lock comb 53 becomes approximately parallel to the bottom surface of the fixing base 13a. Furthermore, to ensure the strength of the lock comb 53, the tips of the comb teeth 67 are also connected to each other, integrating them.

Furthermore, the comb shaft 68 is provided with an L-shaped crank bar 69 at a position opposite to the connection point of the base of the comb teeth 67. That is, the tip of the crank bar 69 extending from the comb shaft 68 faces away from the comb teeth 67. Also, the comb shaft 68 is provided with a U-shaped U-crank 71 facing the same direction as the crank bar 69, with the bottom of the U-shape being the tip of the free end. Since the lock comb 53 is pivotally supported on the comb shaft 68 by the dial fixing base 62, when the tip of the comb teeth 67 is displaced away from the fixing base 13a, the tips of the crank bar 69 and the U-crank 71 are displaced closer to the fixing base 13a, as shown in Figure 14.

In other words, the free ends of the crank bar 69 and U-shaped crank 71 become approximately parallel to the fixed base 13a only when the number sequence for unlocking the dial lock is aligned. Conversely, unless the number sequence for unlocking the dial lock is aligned, the crank bar 69 and U-shaped crank 71 are displaced from their parallel state and tilted relative to the fixed base 13a. Furthermore, due to the elastic force of a spring (not shown) in the lock comb 53, when the notches 65 are aligned, the triangular projection 66 naturally fits into the notches 65, and the displacement of the lock comb 53 is naturally resolved.

The tip of the crank bar 69 and the tip of the U-shaped crank 71 are both positioned near the rotary 24a. When the lock comb 53 tilts, the tip of the crank bar 69 is displaced to approach the fixed base 13a and is at the same height as the second limiting projection 59. As a result, when the rotary 24a attempts to rotate, the second limiting projection 59 collides with the tip of the crank bar 69, preventing the rotary 24a from rotating. Similarly, when the tip of the U-shaped crank 71 is displaced to approach the fixed base 13a, it is at the same height as the first limiting projection 58. Therefore, when attempting to rotate the rotary 24a, the tip of the U-shaped crank 71 also collides with the first limiting projection 58, thus preventing the rotary 24a from rotating as well.

On the other hand, when the number arrangement on the dial plate 63 is aligned, the notches 65 align, and the tilt of the lock comb 53 is eliminated. This eliminates the displacement of the U-shaped crank 71 and crank bar 69, and prevents contact between the U-shaped crank 71 and crank bar 69 and the restricting projections 58 and 59. As a result, the rotary 24a becomes rotatable around the operating shaft 26, allowing the stocker 100 to be locked.

In the second embodiment, explanations that overlap with those of the first embodiment are omitted. Similarly, in the drawings, the same reference numerals are used for identical components, and their descriptions are omitted.

As described above, according to the storage lock 10a of the second embodiment, even with a rotary lock other than a cylinder lock 18, similar to the first embodiment, the locked child can pull the tag 50 or string 48 to remove the fastener 40, causing the locking cam 28 to detach from the operating shaft 26, and allowing for easy unlocking from inside the storage lock 100.

Although several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention.
These embodiments can be implemented in various other forms, and various omissions, substitutions, modifications, and combinations are possible without departing from the spirit of the invention.
These embodiments and their variations are included within the scope and essence of the invention, as well as within the scope of the claims and its equivalents.

For example, the explanation described a storage lock being installed on the door of a delivery box, but the storage lock may also be installed on the housing itself. Also, the explanation described a hinged door, but the door may be a sliding door, a folding door, or any other type; there are no particular limitations on the type of door. Furthermore, the storage lock is not limited to the above example, as long as it is a rotary lock with an operating shaft.

100 (100a)... Stocker (delivery box), 10 (10a)... Stocker lock, 11... Housing, 12... Hinged door, 13 (13a)... Fixing base, 14... Outer plate, 15... Recess, 16... Cylinder fixing base, 17... Handle, 18... Cylinder lock, 19... Keyhole, 20... Locking projection, 21... Knob, 23... Keyhole, 24 (24a)... Rotary, 24a ₁ (24a)... Semi-cylindrical, 24a ₂ (24a)...Disc, 25...Tumbler, 26...Operating shaft, 27...Operating projection, 28...Locking cam, 29...Shaft hole, 30...Pin hole, 31...Side hole, 32...Cylindrical cover, 33 (33a)...Restricting claw (restricting block), 34...Key, 35...Handle housing, 36...Latch, 37...Latch housing, 38...End plate, 39...Washer, 40...Fastener, 40a...Fastener, 40b...Fastener, 41...Straight section, 42...Narrowed section, 43...Narrowed section, 44...Curved section, 4 6...Ring section, 47...Plate surface, 48...String (removal means), 49...Groove, 50...Tag (removal means), 51...Dial row, 53...Lock comb, 58...First restricting projection (restricting projection), 59...Second restricting projection (restricting projection), 61...Dial shaft, 62...Dial fixing base, 63...Dial plate, 64...Sleeve plate, 65...Notch, 66...Triangular projection, 67...Comb teeth, 68...Comb shaft, 69...Crank bar, 71...U-shaped crank, C...Center of cylinder.

Claims (7)

A rotary lock that locks and unlocks by rotating a rotary mechanism around an operating shaft,
A locking cam that is detachably fitted onto the aforementioned operating shaft,
A fastener that is detachably attached to the tip side of the operating shaft portion from the position where the locking cam is located,
A storage lock characterized by comprising a removal means for manually removing the fastener from the operating shaft portion. The storage lock according to claim 1, wherein the removal means is a tagged string connected to the fastener. A pin hole is drilled in the operating shaft portion on the side facing the tip of the locking cam.
The fastener is a pin inserted into the pin hole,
The storage lock according to claim 1, wherein a washer is provided between the locking cam and the pin, the groove of which is provided on the plate surface along the direction in which the pin is inserted into the pin hole, and which is rotated after the fastener is attached to tighten the locking cam. The storage lock according to claim 3, wherein the pinhole is aligned vertically when locked. The storage lock according to claim 3, wherein the pin is a snap pin. The storage lock according to claim 1, wherein the fastener is a clip that clamps the operating shaft portion. A storage lock according to any one of claims 1 to 6,
The door is locked by the aforementioned storage lock,
A storage unit comprising a housing that allows items to be put in and taken out through the aforementioned door.