Stocker lock and stocker

Abstract

To provide a stocker lock which can be unlocked from the inside of a stocker by an extremely easy operation, and a stocker.SOLUTION: A stocker lock 10 includes a cylinder lock 18 that is locked / unlocked by rotating a rotary 24 around an operation shaft portion 26, a locking cam 28 that is detachably fitted to the operation shaft portion 26, a fastener 40 that is detachably attached to the operation shaft portion 26 closer to a distal end portion side than an arrangement position of the locking cam 28, and removing means 48 for manually removing the fastener 40 from the operation shaft portion 26.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a storage unit such as a delivery box, a locker, a safe, or a warehouse, and a lock provided for such a storage unit. [Background technology]

[0002] Children may get locked in storage units such as delivery boxes while playing. Therefore, various locks have been proposed that have a lock-in prevention function to allow a locked-in child to escape. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-062275 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional technology can be difficult for children to operate in the dark, and there is a risk that a child may not be able to escape on their own.

[0005] The present invention has been made in consideration of the above circumstances, and has an object to provide a storage lock and a storage unit that can be unlocked from inside the storage unit with an extremely simple operation. [Means for solving the problem]

[0006] The storage lock of the present invention comprises a cylinder lock that locks and unlocks by rotating a cylinder around an operating shaft, a locking cam that is removably fitted into the operating shaft, a fastener that is removably attached to the tip side of the position of the locking cam, and a removal means for manually pulling out the fastener.

[0007] In another embodiment of the invention, the detachment means is a string with a tag connected to the fastener.

[0008] In still another embodiment of the present invention, a pin hole is drilled in the side of the operating shaft portion tip side from the position of the locking cam, the fastener is a pin inserted into the pin hole, and a washer having a groove on its plate surface along the insertion direction of the pin into the pin hole is provided between the locking cam and the pin, and the washer is rotated after the pin is inserted to tighten the pin.

[0009] In still another embodiment of the present invention, the pin hole is aligned vertically when the storage lock is in a locked state.

[0010] In yet another embodiment of the present invention, the pin is a snap pin.

[0011] A storage unit according to the present invention includes a storage unit lock according to any one 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 via the door. Effect of the Invention

[0012] The present invention provides a storage lock and a storage unit that can be unlocked from inside the storage unit with a very simple operation. [Brief description of the drawings]

[0013] [Figure 1] FIG. 2 is a schematic perspective view showing an example of a stocker equipped with a stocker lock according to the first embodiment. [Diagram 2] FIG. 2 is an exploded view of the configuration of a cylinder lock, which is a lock mechanism of the storage lock according to the first embodiment. [Diagram 3] (A)~(D) Front views of the cylinder lock with the knob removed. [Figure 4] FIG. 4 is an explanatory diagram showing a method of unlocking the storage lock using a key. [Diagram 5](A) is a perspective view of the stocker lock as seen from the back side, (B) is a partially exploded view of FIG. 5(A). [Figure 6] 13(A) and (B) are diagrams showing modified examples of fasteners. [Figure 7] 1A to 1C are perspective views of a cylinder lock explaining the function of the washer. [Figure 8] (A) and (B) Side views of a cylinder lock explaining the function of the washer. [Figure 9] (A) Back view of the lock in the unlocked state, (B) back view of the lock in the locked state. [Figure 10] 6A to 6C are explanatory diagrams showing the procedure for unlocking the storage lock from inside the storage unit. [Figure 11] FIG. 13 is a front view of a storage lock according to a second embodiment. [Figure 12] FIG. 11 is a partially enlarged perspective view of the vicinity of the rotary of the storage lock according to the second embodiment. [Figure 13] FIG. 11 is a rear perspective view of the storage lock according to the second embodiment in an unlocked state. [Figure 14] FIG. 11 is a rear perspective view of the storage lock according to the second embodiment in a locked state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following, the upper and lower directions are represented by the upper and lower directions of a stocker when the stocker is installed on the ground so that the door stands upright from the ground and a stocker lock is provided.

[0015] (First embodiment) FIG. 1 is a schematic perspective view showing an example of a stocker 100 equipped with a stocker lock 10 according to the first embodiment. The storage unit 100 is, for example, a delivery box 100a, as shown in Fig. 1. The delivery box 100a may be a free-standing type for a detached house, or a wall-mounted type for an apartment building. The delivery box 100a may also be a type that is integrated with the front door. The storage lock 10 can also be applied to other devices besides the delivery box 100a, such as lockers, safes, or warehouses.

[0016] In the storage unit 100 according to the first embodiment, as shown in FIG. 1, for example, a hinged door 12 with a storage lock 10 is attached to a housing 11. Mail is inserted and removed by opening the hinged door 12. A square hole (not shown) is drilled in the hinged door 12 into which the storage lock 10 is fitted. The storage lock 10 is fixed to the hinged door 12 with screws or the like after a fixing base 13 (FIG. 5(A)) is fitted into the square hole. An outer plate 14 is fitted from the outer side of the hinged door 12 into the exposed portion of the fixing base 13 from the square hole.

[0017] The outer plate 14 is provided with a vertically long rectangular recess 15. The edge of this recess 15 protrudes slightly toward the recess 15 to form a handle 17 on which a person places their hand. A cylinder lock 18 is fitted into the outer plate 14 next to the handle 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 manually gripping the knob 21. After storing the mail in the housing 11 and closing the hinged door 12, the delivery person rotates the knob 21 90 degrees to lock the stocker 100.

[0018] 2 is an exploded view of the cylinder lock 18, which is a locking mechanism of the storage lock 10 according to the first embodiment. The cylinder lock 18 has a keyhole 19 and is a mechanism for locking and unlocking by human operation. 2, the cylinder lock 18 has a cylindrical rotary 24 with a keyhole 23 on the top surface, which is fitted into the knob 21 so that the rotational axis of the keyhole 23 coincides with that of the keyhole 19. Several tumblers 25 protrude from the peripheral side surface of the rotary 24. When each tumbler 25 is pushed toward the center C of the cylinder, it is pushed into the rotary 24.

[0019] Furthermore, at one of the two end faces of the rotary 24 to which the knob 21 is not fixed, a cylindrical operating shaft portion 26 having a smaller diameter than the rotary 24 is connected to the rotary 24 with the cylindrical center C coinciding with the rotary 24. The rotary 24 and the operating shaft portion 26 may be formed integrally.

[0020] A plate-shaped locking cam 28 having an axial hole 29 is fitted into the operation shaft 26. A locking protrusion 20 for rotating the locking cam 28 is provided on the side of the operation shaft 26. The operation shaft 26 and the locking protrusion 20 are fitted into the axial hole 29, which is a circular hole of a size in which the operation shaft 26 fits and a side hole 31 in which the locking protrusion 20 fits. When the knob 21 is rotated around the keyhole 19, the tumbler 25 and the operation shaft 26 rotate around the keyhole 23 as an axis, so that the locking cam 28 fixed to the operation shaft 26 is also pushed by the locking protrusion 20 and rotates around the keyhole 23. The locking cam 28 rotates and fits into a cam receiving hole (not shown) provided in the housing 11, thereby locking the hinged door 12. In addition, a pin hole 30 is provided in the operation shaft 26 on the tip side of the position where the locking cam 28 is arranged so as to penetrate the peripheral side surface.

[0021] In addition, a cylindrical cover 32 having a diameter larger than that of the rotary 24 is disposed around the rotary 24. On the inner periphery of the cylindrical cover 32, limiting claws 33 protrude toward the central axis of the cylindrical cover 32. The limiting claws 33 are disposed at positions where they can come into contact with the tumblers 25. Here, Figures 3(A) to (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 in the unlocked state. Also, Figure 3(D) shows the positions of the tumbler 25 and the locking cam 28 in the unlocked state. Figures 3(B) and 3(C) show intermediate states from Figure 3(A) to Figure 3(D). FIG. 4 is a diagram for explaining a method for locking and unlocking the stocker lock 10 with the key 34. As shown in FIG.

[0022] As shown in FIG. 3(A), the limiting claw 33 has four limiting blocks 33a. When the rotary 24 is rotated to the right from the unlocked state shown in FIG. 3(A), the side of the tumbler 25 comes into contact with the limiting blocks 33a and cannot rotate any further. However, as shown in FIG. 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 drawn into the rotary 24 as shown in FIG. 3(B). Therefore, as shown in FIG. 3(C), the tumbler 25 no longer comes into contact with the limiting blocks 33a, and the rotary 24 becomes rotatable in the locked direction. Then, when the rotary 24 rotates 90 degrees around the cylinder center C, the tumbler 25 passes over the limiting blocks 33a, and the force from the limiting blocks 33a is no longer applied, and as shown in FIG. 3(D), the tumbler 25 protrudes to the same height as in the unlocked state shown in FIG. 3(A). At this time, the locking cam 28 rotates 90 degrees together with the rotary 24 and fits into the cam receiving hole of the housing 11, and the hinged door 12 is locked.

[0023] Also, at this time, if the rotary 24 is rotated in the unlocking direction, that is, to the left, the side of the limiting block 33a hits the tumbler 25 from the side, preventing the movement of the tumbler 25, and the lock is locked. In the unlocking procedure, as in the locking procedure, when the key 34 is inserted into the keyhole 23, the tumbler 25 is drawn into the rotary 24 and becomes rotatable in the unlocking direction. In recent years, there is also a cylinder lock 18 that can be locked by simply 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 in the stocker 100 and locked, and the mail cannot be stolen by a passerby who does not have the key 34. In addition, various cylinder locks 18 have been known in the past. For example, the shapes of the rotary 24, the tumbler 25, and the cylinder cover 32 can be any shapes known in the past. For example, the shape of the tumbler 25 may be a pin shape instead of a plate shape as shown in FIG. 2.

[0024] Next, the confinement prevention mechanism of the storage lock 10 will be described with reference to FIGS. 5(A) and (B) to 10(A) to (C). Fig. 5(A) is a perspective view of the stocker lock 10 as viewed from the back side, and Fig. 5(B) is a partial exploded view of Fig. 5(A). As shown in Figures 5(A) and 5(B), the cylinder lock 18 is fixed to the fixed base 13. The fixed base 13 includes a handle accommodating section 35 that accommodates the handle 17, a cylinder fixed base 16 that accommodates and fixes the cylinder lock 18, and a latch accommodating section 37 that accommodates the latch 36. There have been a variety of shapes of the handle accommodating section 35, the cylinder fixed base 16, and the latch accommodating section 37, and their positional relationship on the fixed base 13, and are not particularly limited to the examples shown in Figures 5(A) and 5(B).

[0025] The rotary 24 is accommodated in the cylinder fixing base 16 so that the operating shaft 26 and the locking projection 20 penetrate an end plate 38 of the cylinder fixing base 16 and protrude toward the inside of the stocker 100. A washer 39 is overlapped and fitted onto the operating shaft 26 protruding from the end plate 38 together with the locking cam 28. A fastener 40 bent into a U shape is inserted into the pin hole 30 at the tip of the operating shaft 26 which penetrates the washer 39.

[0026] One of the rod portions of fastener 40 is straight portion 41 that is maintained in a straight shape. This straight portion 41 is inserted into pin hole 30. The other rod portion of fastener 40 is curved portion 44 that, together with straight portion 41, forms two constrictions 42, 43. Fastener 40 is a so-called snap pin that is formed into a shape obtained by adding one more loop portion 46 to an R-shaped semicircular arc portion by such straight portion 41 and curved portion 44.

[0027] The operating shaft 26 fits into the semicircular arc portion of the fastener 40, and is sandwiched by the necked portions 42, 43 of the fastener 40 and fixed to the fastener 40. The fastener 40 maintains the locking cam 28 and the washer 39 in a state of being fitted into the operating shaft 26. The ring portion 46 of the fastener 40 is bent at a substantially right angle and stands up from the surface on which the R-shaped portion is placed. A loop-shaped string 48 with a pull tag 50 threaded therethrough is passed through the ring portion 46. When the fastener 40 is removed from the pin hole 30, the locking cam 28 and the washer 39 are no longer held down, and the locking cam 28 and the washer 39 are released from the operating shaft 26.

[0028] Here, FIGS. 6(A) and (B) are diagrams showing modified examples of the fastener 40. FIG. The fastener 40 may be, for example, as shown in FIG. 6(A), a so-called potbellied pin (fastener 40a) having two curved portions 44 symmetrically arranged instead of the straight portion 41 of a snap pin. In this case, the operating shaft portion 26 is fitted into the arc between the two constricted portions 42, 43, and the operating shaft portion 26 is sandwiched between the constricted portions 42 and 43, thereby fastening the fastener 40a to the operating shaft portion 26. When the string 48 with the tag 50 attached thereto, which is passed through the loop portion 46 of the fastener 40a, is pulled, the constricted portions 42 of the potbellied pin-shaped fastener 40a are opened to the left and right, and the fastener 40a is removed from the operating shaft portion 26. In this case, the fastener 40a is not of a type that is inserted into the pin hole 30, so that the pin hole 30 does not need to be provided in the operating shaft portion 26.

[0029] 6(B), the fastener 40 may be a clip (fastener 40b) that clamps the operating shaft portion 26. 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, and the tag 50 slides off the operating shaft portion 26.

[0030] 7(A)-(C) are perspective views of the cylinder lock 18 explaining the function of the washer 39. Also, FIGS. 8(A) and (B) are side views of the cylinder lock 18 explaining the function of the washer 39. The attachment work of the fastener 40 is performed in the order of FIG. 7(A) to FIG. 7(C). The fastener 40 prevents the locking cam 28 from coming off the operating shaft portion 26. Also, 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 FIG. 7(A), the straight portion 41 of the fastener 40 is inserted into the pin hole 30.

[0031] A linear groove 49 is carved in 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 hindered by the washer 39. Once the fastener 40 is inserted into the pin hole 30, the operator presses the operating protrusions 27 protruding from the peripheral side surface of the washer 39 with their fingers, thereby rotating the washer 39 at a right angle around the operating shaft 26, as shown in Figure 7(B).

[0032] When the washer 39 rotates at a right angle, as shown in Figures 7(C) and 8(B), the plate surface 47 comes into contact with the fastener 40 and presses the fastener 40 against the side surface of the pin hole 30, generating friction between the fastener 40 and the side surface of the pin hole 30. This pressing prevents the locking cam 28 from rattling.

[0033] 9(A) is a rear view of the stocker lock 10 in an unlocked state, and FIG. 9(B) is a rear view of the stocker lock 10 in a locked state. Also, FIG. 10(A) to FIG. 10(C) are explanatory views showing the procedure for unlocking the stocker lock 10 from inside the stocker 100. In the unlocked state, as shown in Fig. 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 Fig. 9(B), the locking cam 28 is aligned horizontally while the fastener 40 is aligned vertically.

[0034] When a child gets into the stocker 100 and is locked, the child tries to escape and unlock the stocker lock 10. At this time, even if the child does not know the unlocking method in advance and even if the child is feeling around, it is considered that the child will find the string 48 with the tag 50 attached and will pull the string 48 together with the tag 50 up, down, left and right at an early stage. When the string 48 is pulled downward, the fastener 40 comes off the operating shaft 26 as shown in Fig. 10(A) and Fig. 10(B). Then, the locking cam 28 provided on the operating shaft 26 comes off the operating shaft 26 together with the washer 39 as shown in Fig. 10(C). When the locking cam 28 comes off, the stocker lock 10 is unlocked and the trapped child can escape from the stocker 100. If the tag 50 is written with an arrow and the word "pull", the unlocking action when trapped will be easier to understand.

[0035] In this way, by providing the pin hole 30 so that the pin hole 30 is oriented vertically when the storage lock 10 is in a locked state, the fastener 40 will fall by its own weight if it is removed from the pin hole 30 to a certain extent. It is also considered that it is easier for a child to pull the tag 50 downward than in other directions. By determining the drilling direction of the pin hole 30 in this way, a child can escape from the storage 100 more easily. In addition, not only children but also pets may become trapped inside the storage 100, and one of the four paws may get caught on the string 48 as the pet struggles in the storage 100, causing the fastener 40 to fall, and the pet may be able to escape from the storage 100.

[0036] Furthermore, by using a snap pin for the fastener 40, there is no need to open the end by hand as with a split pin. Simply pressing the fastener 40 against the operating shaft 26 causes the fastener 40 to open by itself, be inserted into the pin hole 30, and be attached to the operating shaft 26. Furthermore, when the operating shaft 26 is fitted into the semicircular arc portion, almost no force is required to open the fastener 40. Therefore, even with long-term use, the clamping force of the fastener 40 does not decrease, and the fastener 40 is pulled out only when pulled with an appropriate force. Note that the shapes of the fastener 40 and the pin hole 30 are not limited to the above-mentioned examples, as long as the fastener 40 can be removed from the pin hole 30 by pulling it.

[0037] As described above, the storage lock 10 according to the first embodiment can be unlocked from the inside with a very simple operation. Therefore, even if a child is upset or in a situation where no light is shining in, the child can quickly unlock the storage lock 10 by feel and escape from the storage unit 100.

[0038] Second embodiment Fig. 11 is a front view of the stocker lock 10a according to the second embodiment, and Fig. 12 is a partially enlarged perspective view of the vicinity of the rotary 24a of the stocker lock 10a according to the second embodiment. In the first embodiment, a so-called cylinder lock 18 in which the rotation of the rotary 24 is restricted by the tumbler 25 in the cylindrical cover 32 has been described as an example of the storage lock 10. In the second embodiment, a dial lock in which the rotation of the rotary 24a is restricted by a lock comb 53 displaced by an adjacent dial row 51 will be described as an example of the storage lock 10a.

[0039] 11 and 12, the dial lock is connected so that the knob 21, operating shaft 26, locking cam 28, and rotary 24a are aligned on the same rotation axis as in the first embodiment. Therefore, when the knob 21 is rotated a certain angle in the locking direction, the locking cam 28 rotates and fits into a cam housing hole provided in the housing 11 (FIG. 1), locking the stocker 100. Conversely, when the knob 21 is rotated a certain angle in the unlocking direction, the locking cam 28 rotates in the reverse direction and comes out of the cam housing hole to be unlocked.

[0040] The rotary 24a has a shape in which a semi-cylinder 24a1 is integrally formed around the operating shaft 26, and a disk 24a2 having a diameter larger than that of the semi-cylinder 24a1 is integrally formed on the side of the semi-cylinder 24a1 on the fixed base 13a side. A limiting protrusion (first limiting protrusion) 58 is provided on the peripheral side of the disk 24a2. A limiting protrusion (second limiting protrusion) 59 is also provided radially on the operating shaft 26 at the location where the semi-cylinder 24a1 is formed. A fastener 40 connected to a string 48 with a tag 50 attached thereto is inserted into the operating shaft 26 on the tip side of the locking cam 28, as in the first embodiment. The fastener 40 may be a daruma pin or a clip as shown in FIGS. 6(A) and (B) other than the snap pin as in the first embodiment, as in the first embodiment.

[0041] FIG. 13 is a rear perspective view of the storage lock 10a in the unlocked state. FIG. 14 is a rear perspective view of the storage lock 10a in the locked state. As shown in FIG. 13, the dial row 51 is mainly composed of a dial shaft 61 fixed to a dial fixing base 62, four sets of disk-shaped dial plates 63 arranged in parallel along the dial shaft 61, and four sets of disk-shaped sleeve plates 64 fixed to one side of each dial plate 63.

[0042] Each dial plate 63 rotates around the dial shaft 61 independently of the others. Each sleeve plate 64 rotates around the dial shaft 61 together with the fixed dial plate 63. In addition, a triangular notch 65, for example, is provided on the peripheral side of each sleeve plate 64. In addition, a lock comb 53 having a triangular protrusion 66 that fits into each notch 65 is arranged near the sleeve plate 64. The lock comb 53 is provided with comb teeth 67 that have the same number of teeth as the sleeve plate 64 and fit between each dial plate 63. The triangular protrusion 66 is provided on this comb tooth 67. The notches 65 are formed so that they are aligned in a row and the triangular protrusions 66 fit into them when the number sequence for unlocking the combination lock is complete.

[0043] The roots of the comb teeth 67 are connected to a comb shaft 68 and integrated as the lock comb 53. The lock comb 53 is supported by the comb shaft 68 on the dial fixing base 62. Therefore, if any one of the number sequences for unlocking is not aligned and the notches 65 are not aligned, none of the comb teeth 67 can fit between the dial plates 63. Only when the number sequences for unlocking are aligned, all the comb teeth 67 can fit between the dial plates 63, and the lock comb 53 becomes approximately parallel to the bottom surface of the fixing base 13a as shown in FIG. 13. In order to ensure the strength of the lock comb 53, the tips of the comb teeth 67 are also connected to each other and integrated.

[0044] The comb shaft 68 is provided with a crank bar 69 bent in an L-shape at a position opposite to the connection position of the root of the comb teeth 67. In other words, the tip of the crank bar 69 extending from the comb shaft 68 faces away from the comb teeth 67. The comb shaft 68 is also provided with a U-shaped crank 71 in the same direction as the crank bar 69, with the bottom of the U being the tip of the free end. Since the lock comb 53 is journaled on the dial fixed base 62 at the comb shaft 68, when the tip of the comb teeth 67 is displaced in a direction away from the fixed base 13a, the tips of the crank bar 69 and the U-shaped crank 71 are displaced to approach the fixed base 13a as shown in FIG. 14.

[0045] In other words, only when the number sequences for unlocking the combination locks are aligned, the free ends of the crank bar 69 and the U-shaped crank 71 become substantially parallel to the fixed base 13a. On the other hand, unless the number sequences for unlocking the combination locks are aligned, the crank bar 69 and the U-shaped crank 71 are displaced from the parallel state and tilted relative to the fixed base 13a. When the notches 65 of the lock comb 53 are aligned, the triangular protrusions 66 naturally fit into the notches 65 due to the elastic force of a spring (not shown), and the displacement of the lock comb 53 is naturally eliminated.

[0046] The tip of the crank bar 69 and the tip of the U-shaped crank 71 are both located near the rotary 24a. When the lock comb 53 is tilted, the tip of the crank bar 69 is displaced to approach the fixed base 13a and is positioned at the same height as the second limiting protrusion 59. As a result, when the rotary 24a tries to rotate, the second limiting protrusion 59 hits the tip of the crank bar 69, preventing the rotary 24a from rotating. Similarly, the tip of the U-shaped crank 71 is displaced to approach the fixed base 13a and is positioned at the same height as the first limiting protrusion 58. Therefore, when the rotary 24a is attempted to rotate, the tip of the U-shaped crank 71 also hits the first limiting protrusion 58, and the rotary 24a is also prevented from rotating by the first limiting protrusion 58.

[0047] On the other hand, when the number arrangement of the dial plate 63 is aligned, the notches 65 are aligned and the inclination of the lock comb 53 is eliminated, so that the displacement of the U-shaped crank 71 and the crank bar 69 is eliminated, and the abutment between the U-shaped crank 71 and the crank bar 69 and the limiting protrusions 58, 59 is eliminated. As a result, the rotary 24a becomes rotatable around the operating shaft 26, and the stocker 100 can be locked.

[0048] In the second embodiment, the description overlapping with the first embodiment will be omitted. Also, in the drawings, the same components are denoted by the same reference numerals, and the description of those components will be omitted.

[0049] As described above, with the storage lock 10a of the second embodiment, even if the storage lock is a rotary lock other than a cylinder lock 18, as in the first embodiment, a trapped child can pull the tag 50 or string 48 to pull out the fastener 40, causing the locking cam 28 to come off the operating shaft portion 26, and the storage lock 100 can be easily unlocked from inside the storage lock 100.

[0050] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, modifications, and combinations can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope of the invention and its equivalents as described in the claims, as well as in the scope and spirit of the invention.

[0051] For example, the storage lock has been described as being installed on the door of the delivery box, but the storage lock may be installed on the housing. Also, the door has been described as a hinged door, but the door may be a sliding door or a folding door, and there is no particular limit to the type of door. Also, the storage lock is not limited to the above example, as long as it is a rotary lock equipped with an operating shaft. [Explanation of symbols]

[0052] 100 (100a) ... storage (delivery box), 10 (10a) ... storage lock, 11 ... housing, 12 ... swing door, 13 (13a) ... fixing base, 14 ... outer plate, 15 ... recess, 16 ... cylinder fixing base, 17 ... handle portion, 18 ... cylinder lock, 19 ... key hole, 20 ... locking projection, 21 ... knob, 23 ... key hole, 24 (24a) ... rotary, 24a1 (24a) ... semi-cylindrical cylinder, 24a2 (24a) ... disk, 25 ... tumbler, 26 ... operation shaft portion, 27 ... operation projection, 28 ... locking cam, 29 ... shaft hole, 30 ... pin hole, 31 ... side hole, 32 ... cylinder cover, 33 (33a) ... limiting claw (limiting block), 34 ... key, 35 ... handle portion storage portion, 3 6...latch, 37...latch receiving portion, 38...end plate, 39...washer, 40...fastener, 40a...fastener, 40b...fastener, 41...straight portion, 42...narrowed portion, 43...narrowed portion, 44...curved portion, 46...ring portion, 47...plate surface, 48...string (removal means), 49...groove, 50...tag (removal means), 51...dial row, 53...lock comb, 58...first limiting protrusion (limiting protrusion), 59...second limiting protrusion (limiting protrusion), 61...dial shaft, 62...dial fixing base, 63...dial plate, 64...sleeve plate, 65...notch, 66...triangular protrusion, 67...comb teeth, 68...comb shaft, 69...crank bar, 71...U-shaped crank, C...cylinder center.

Claims

1. A rotary lock that locks and unlocks by rotating the rotary around an operating shaft; A locking cam that is detachably fitted to the operating shaft portion; a fastener that is detachably attached to the operating shaft portion on a tip side of the position where the locking cam is disposed; and a removal means for manually removing the fastener from the operating shaft portion.

2. 2. The storage lock according to claim 1, wherein the removal means is a string with a tag connected to the fastener.

3. A pin hole is drilled in the side surface of the operation shaft portion on the tip side from the position where the locking cam is disposed, the fastener is a pin that is inserted into the pin hole, A storage lock as described in claim 1, further comprising a groove provided on a plate surface between the locking cam and the pin along the direction in which the pin is inserted into the pin hole, and a washer that is rotated after the fastener is attached to tighten the locking cam.

4. The storage lock according to claim 3 , wherein the pin hole extends vertically in a locked state.

5. 4. The storage lock according to claim 3, wherein the pin is a snap pin.

6. 2. The storage lock according to claim 1, wherein the fastener is a clip that clamps the operating shaft portion.

7. A locker according to any one of claims 1 to 6, A door that is locked by the storage lock; A storage unit having a housing that allows items to be put in and taken out through the door.

Images