JP5388693B2 - Storage box door locking device - Google Patents

Description

  The present invention relates to a door locking device provided in a storage box such as a letter box corresponding to each door provided in an apartment house such as an apartment.

  As this type of conventional locking device, for example, as disclosed in Patent Document 1, a cylindrical knob body fixed to the outer surface of the wing, and a protruding and retracting surface of the knob body are provided so as to be freely retractable. A plurality of unlocking and non-unlocking push buttons and an outer peripheral portion of the knob body are rotatably fitted, and when all the unlocking push buttons are operated to push in the unlocking direction. A knob operation body that can be rotated, and a reset that resets all the push buttons that have been pushed when the knob operation body is rotated in the direction opposite to the unlocking direction to the original non-operation state. What is provided with a means is known.

Japanese Patent No. 3136271

  In the configuration of the conventional locking device described above, it is necessary to perform an operation of pressing all the unlocking push buttons and then rotating the knob operation body in the unlocking direction.

  An object of the present invention is to solve such problems, and to provide a door locking device having a reduced number of operations compared to the conventional locking device.

  The door locking device for a storage box according to claim 1 of the present invention is the other side portion side of the door in which one side portion is pivotally attached to one side portion of the main body portion at the front end opening of the main body portion of the storage box. A door locking device for a storage box attached to the body, wherein the locking device is formed in a cylindrical shape and has a main body integrally formed with a large diameter portion on one end side, and a bottom portion on the other end side of the main body. A locking lever that is pivotally supported by a pin that is oriented at right angles to the axial direction and whose locking claw at one end protrudes outward from the main body, and the other end of the locking lever located in the main body abuts on and off. And a rotor fitted in the main body so as to be rotatable around the same axis as the main body, and a cylindrical part is fitted in the large diameter portion on one end side of the main body so as to be rotatable around the same axis as the main body. The arm part protruding from the cylindrical part on both sides contacts the end face of the large-diameter part, and the tip is picked. Is a lock lever protruding from the outer periphery of the large-diameter portion, a number of operation buttons that can be engaged with the inner surface of the cylindrical portion of the lock lever, and an arm portion of the lock lever that covers the operation button and is connected to the end surface of the large-diameter portion The operation button comprises a plurality of positive operation buttons and a plurality of erroneous operation buttons. When all the positive operation buttons are pushed in the locked state where the locking claw is locked to the locking bracket of the main body, the rotor rotates and the locking lever locks against the locking bracket of the main body. It is configured to be released.

  As described above, the door locking device of the storage box according to the present invention is such that when unlocking, the rotor that has stopped the locking lever in the locked state is rotated by pushing in all the positive operation buttons, and the main body portion It is possible to release the lock of the lock lever with respect to the lock metal fitting, and it is possible to provide a door locking device that reduces the number of operations during unlocking.

It is a disassembled perspective view of the door locking device of the storage box in one embodiment of the present invention. It is a top view of the locking device main body. It is a top view of the rotor. It is a top view of the lock lever. It is sectional drawing of the lock lever. It is sectional drawing which shows the state which the latching lever of the door locking apparatus latched on the latching metal fitting of the main-body part. It is a XX arrow line view of FIG. It is sectional drawing which shows the state which the latching lever of the door locking device removed from the latching metal fitting of a main-body part. It is a YY arrow line view of FIG. It is explanatory drawing which shows the state which rotated the lock lever in order to reset the door locking device.

Hereinafter, an embodiment of the present invention will be specifically described with reference to FIGS.
In the figure, reference numeral 1 denotes a storage box such as a letter box corresponding to each door provided in an apartment house such as a condominium. The front end opening of the main body 2 of the storage box 1 has one side on one side of the main body 2. The door 3 can be opened and closed freely by a hinge. Reference numeral 4 denotes a locking device attached to the other side of the door 3. The locking device 4 is formed in a cylindrical shape and has a main body 6 integrally formed with a large diameter portion 5 at one end side. A locking lever 8 that is pivotally supported by a pin 7 that is oriented at right angles to the axial direction of the main body 6 in the bottom portion on the other end side, and a locking claw 8 a at one end projects outward from the main body 6; A rotor 9 fitted into the main body 6 so as to be able to rotate around the same axis as the main body 6 so as to come into contact with and disengage from the other end side of the locking lever 8 positioned on the main body 6, and a large one end side of the main body 6 A central cylindrical portion 10 is fitted into the diameter portion 5 so as to be rotatable around the same axis as the main body 6, and arm portions 11, 11 projecting from the cylindrical portion 10 to both sides abut against the end surface of the large diameter portion 5. The lock lever 12 with the tip knobs 11a and 11a projecting from the outer periphery of the large diameter portion 5 and the lock lever 1 Two types of operation buttons 13, 14 that can be engaged with the inner surface of the cylindrical portion 10, and the arm portions 11, 11 of the lock lever 12 between the end surfaces of the large-diameter portion 5 while covering the operation buttons 13, 14. And a cover 15 having a hole 15a for projecting the heads of the pinching operation buttons 13 and 14.

  More specifically, the rotor 9 is configured such that an outer surface excluding one end in the axial direction is fitted into the main body 6 so as to be slidable on the inner surface of the main body 6, and the rotor 9 is arranged from one end side in the axial direction. Almost half of the axial direction is formed in a cylindrical shape, and the remaining half of the axial direction is substantially solid. The solid part 9a has a solid part 9a on a line passing through the radial center of the rotor 9. A groove 9b penetrating in the axial direction of the rotor 9 is formed so that the other end of the locking lever 8 is fitted when the locking lever 8 is unlocked. The outer peripheral surface in the vicinity is provided with bulging portions 9c and 9c so that a step is formed at two opposing positions, and the rotor 9 is unlocked at one position on the outer surface at one end in the axial direction of the rotor 9 and the locking lever 8 is unlocked. A spring that receives one end of a spring 16 biased to the side Only portions 9d are formed. The other end of the spring 16 is configured to be received by a spring receiving portion 5 a provided in the large diameter portion 5 of the main body 6. Furthermore, four engaging portions 9e, 9f that engage / disengage with respect to the two kinds of operation buttons 13, 14 are formed on the inner surface at one axial end side of the rotor 9 at equal pitches in the circumferential direction. Further, the locking lever 8 itself is urged by a spring 17 in a direction in which the other end side of the locking lever 8 is fitted into the groove 9b.

  Next, the lock lever 12 is formed such that the arm portions 11, 11 are projected on both sides at one end side in the axial direction of the cylindrical portion 10, and the operation button 13 is provided on the inner surface at one axial end side of the cylindrical portion 10. , 14 are formed at equal pitches at eight positions in the circumferential direction, and the axial direction of the cylindrical portion 10 is fixed to the locking portions 10a for locking the elastic claw pieces 13a, 14a of the operation buttons 13, 14 when they are pushed. Locking portions 10b and 10c are formed on the inner surface of the other end to lock the bulging portions 9c and 9c of the rotor 9 so that the rotor 9 does not come out of the main body 6. A spring receiving portion 10d that receives one end of a spring 18 that biases the lock lever 12 toward the normal position is formed at one end of the one locking portion 10b. The other end of the spring 18 is configured to be received by a spring receiving portion 5 b provided in the large diameter portion 5 of the main body 6.

  Next, the two types of operation buttons 13, 14 will be described. Of the two types of operation buttons 13, 14, one operation button 13 is a positive operation button when unlocked, and the other operation button 14 is There are four erroneous operation buttons for unlocking each. And common to all is that the heads 13b and 14b are the same, the elastic claw pieces 13a and 14a are the same, and the heads 13b and 14b are prevented from coming out of the holes 15a of the cover 15. The stoppers 13c and 14c that are in contact with the inner surface of the same are the same, and further, there are provided shafts 13d and 14d for guiding the springs 19 for urging the operation buttons 13 and 14 back. The four positive operation buttons 13 and the four erroneous operation buttons 14 are different from each other in that the four positive operation buttons 13 are engaged during locking, that is, when the locking lever 8 is locked. The pawl piece 13e is in contact with the side surfaces of the four locking portions 9e of the rotor 9, and the recess 13e 'of the locking claw piece 13e is a rotor when unlocked, that is, when the operation button 13 is pressed. 9, the locking of the rotor 9 is released, and the back of the spring receiving portion 9 d is brought into contact with the end surface of the other locking portion 10 c of the lock lever 12 by the spring 16 force. It is comprised so that it can be rotated to the latch release side until it contacts. On the other hand, a notch portion 14e ′ is formed from the front end side so that the locking claw piece 14e of the erroneous operation button 14 does not contact the side surfaces of the remaining four locking portions 9f of the rotor 9 during locking. When the unlocking operation is performed, that is, when the operation button 14 is pressed, the locking claw piece 14e comes into contact with the side surface of the locking portion 9f of the rotor 9 and the rotor 9 tries to rotate toward the locking release side. It is what makes it impossible. That is, when all four positive operation buttons 13 are pushed in without determining the order, the rotor 9 rotates to the unlocking side, and if any one of the erroneous operation buttons 14 is pressed, the rotor 9 is locked. Unable to rotate to the release side.

  One end of the spring 19 that urges the operation buttons 13 and 14 to push back is in contact with the back surface of the stoppers 13c and 14c, and the other end of the spring 19 is at the bottom on the other end side in the axial direction of the lock lever 12. It is supported in contact with a spring receiving plate 20 that is received in a non-rotating state. A cap 21 covers the heads 13 b and 14 b of the operation buttons 13 and 14, and is fitted into the hole 15 a of the cover 15. On the surface of the cap 21, an odd number is marked in order for the positive operation button 13, and an even number is marked in order for the erroneous operation button 17.

  Furthermore, a locking metal fitting 22 that allows the locking claw portion 8a of the locking lever 8 to be locked when the door 3 is closed is formed on the inner surface of the other side portion of the front end opening of the main body 2 of the storage box 1. It is attached.

  In the above configuration, in the locked state, as shown in FIG. 6, the locking claw portion 8a of the locking lever 8 of the locking device 4 of the door 3 is locked to the locking fitting 22 of the main body 2, and When the other end side of the stop lever 8 is in contact with the other end surface of the rotor 9 and the door 3 is unlocked from this state, the order of all positive operation buttons 13 is determined as shown in FIG. As described above, the rotor 9 rotates to the unlocking side by pushing in without being engaged, and the other end side of the locking lever 8 is fitted into the groove 9b of the rotor 9, and the locking claw portion 8a of the locking lever 8 is inserted. Is disengaged from the locking fitting 22 of the main body 2. When the door 3 is closed and locked from this state, that is, when the door 3 is reset, the locking claw portion 8a of the locking lever 8 is brought into contact with the locking fitting 22 of the main body 2 by closing the door 3. As shown in FIG. 10, the locking lever 12 is rotated in the locking direction and the other end side of the locking lever 8 comes out of the groove 9b of the rotor 9, and the door 3 is pushed in the closing direction. When the rotor 9 is rotated 22.5 degrees against the force of the spring 18, the back surface of the spring receiving portion 9d is in contact with the end surface of the other locking portion 10c of the lock lever 12 as shown in FIGS. At the same time, all the positive operation buttons 13 are returned to the state before being pressed by the spring 19 force. As a result, the positive operation button 13 is engaged with the rotor 9, and the rotation of the rotor 9 is stopped. In this state, the lock lever 12 is released by rotating the lock lever 12 in the opposite direction by 22.5 degrees. It becomes the state of the lock.

  In the above-described embodiment, eight operation buttons 13 and 14 are provided, four of which are positive operation buttons 13 and the other are erroneous operation buttons 14. However, the number of operation buttons is limited to eight. Alternatively, it may be six or five, and among them, a plurality of positive operation buttons may be provided.

  The storage box locking device of the present invention is a locking device provided in a storage box such as a letter box corresponding to each door provided in a housing complex such as an apartment.

DESCRIPTION OF SYMBOLS 1 Storage box 2 Main body part 3 Door 4 Locking device 5 Large diameter part 5a, 5b Spring receiving part 6 Main body 7 Pin 8 Locking lever 8a Locking claw part 9 Rotor 9a Solid part 9b Groove 9c Swelling part 9d Spring receiving part 9e , 9f Locking portion 10 Cylindrical portions 10a, 10b, 10c Locking portion 10d Spring receiving portion 11 Arm portion 11a Tip knob 12 Lock lever 13, 14 Operation buttons 13a, 14a Elastic claw pieces 13b, 14b Head portions 13c, 14c Stopper 13d, 14d Shafts 13e, 14e Locking claw 13e 'Recess 14e' Notch 15 Cover 15a Holes 16, 17, 18, 19 Spring 20 Spring receiving plate 21 Cap 22 Locking bracket

Claims (1)

A door locking device for a storage box that is attached to the other side of a door that is pivotally attached to one side of the main body by a hinge at the front end opening of the main body of the storage box. The main body is integrally formed with a large-diameter portion at one end, and a pin that is pivotally supported by a pin that is perpendicular to the axial direction of the main body in the bottom of the other end of the main body. The pawl is rotatable around the same axis as the main body so that the pawl is in contact with and disengaged from the other end of the locking lever that protrudes outward from the main body and the locking lever. A rotor to be inserted, and an arm portion that is rotatably fitted around the same axis as the main body in a large diameter portion on one end side of the main body and that projects from both sides of the cylindrical portion to the end surface of the large diameter portion A lock lever that abuts and the tip knob protrudes from the outer periphery of the large-diameter portion, and A number of operation buttons that can be engaged with the inner surface of the cylindrical portion of the lever, and a hole that covers the operation button and that sandwiches the arm portion of the lock lever between the end surfaces of the large-diameter portion and protrudes the head of the operation button The operation button includes a plurality of positive operation buttons and a plurality of erroneous operation buttons, and the locking claw portion of the locking lever is locked to the locking bracket of the main body portion. The storage box is configured such that when all positive operation buttons are pushed in the locked state, the rotor rotates and the locking lever is released from the locking bracket of the main body. Door locking device.

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