JP2871678B1 - Lock mechanism for box - Google Patents

Abstract

An object of the present invention is to provide a lock mechanism for a box that can be locked only by closing a door. SOLUTION: In a box locking mechanism for locking and unlocking a door body supported by a hinge or the like so as to be openable and closable with respect to a box body containing a product or the like to be sold, a box body standing from the box body to the front. A hook provided, an operating rod disposed in the door body so as to slide in a direction perpendicular to the hook, and an unlocked state of the operating rod, which is rotatably disposed on a part of the operating rod. Since the closing operation of the door body causes the tip of the hook to push the locking member to drop the operating rod, and to engage the hook and the operating rod locking portion, The door can be easily locked simply by closing the door of the box.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a lock mechanism for a box, which locks a door of a box and a main body.

[0002]

2. Description of the Related Art In general, a conventional box locking mechanism for locking between a door of a box and a main body includes a door 5 as shown in FIG.
The lock slide plate 6 attached to the back surface of the box body is operated by a handle lock or the like, and is engaged with a hook 8 fixed to the box body 7 to perform locking and unlocking operations.

[0003]

However, in the above-mentioned conventional lock mechanism for a box, the locking operation must be performed by operating the front lock after the door is closed, and the operation is complicated. There was.

An object of the present invention is to provide a lock mechanism for a box which completes a locking operation only by closing a door of the box in view of the above-mentioned conventional drawbacks.

[0005]

A lock mechanism for a box according to the present invention locks and unlocks a door body supported by a hinge or the like so as to be openable and closable with respect to a box body containing a product to be sold. In the lock mechanism for a box, a hook erected from the box body toward the front, an operating rod disposed in the door so as to slide in a direction perpendicular to the hook, and one of the operating rods A locking member that is rotatably disposed on the portion and holds the operating rod in an unlocked state. When the door is closed, the tip of the hook pushes the locking member to drop the operating rod. And engaging the hook with the operating rod locking portion.

The operating rod is lifted up and unlocked by operating a handle lock disposed on the front surface of the door of the box. Further, when the operating rod is lifted and unlocked by operating a handle lock disposed in front of the door body of the box, the unlocked state is held by a locking member. is there.

As described above, according to the lock mechanism for a box according to the present invention, the locking operation can be completed simply by closing the door.

[0008]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall perspective view showing an embodiment of a box locking mechanism of the present invention, FIG. 2 is an overall perspective view showing a closed state of a vending machine using the box locking mechanism of the present invention, FIG. FIG. 4 is a longitudinal sectional view showing a state in which the door is opened in the lock mechanism for the box, FIG. 4 is a longitudinal sectional view showing the way in which the door is closed in the lock mechanism for the box, and FIG. It is a longitudinal cross-sectional view which shows the state which closed the door and completed locking in the lock mechanism. Here, the box lock mechanism 10 locks and unlocks the door body 12 supported by the hinge 13 and the like so as to be openable and closable with the vending machine main body 11 containing the product to be sold and the like with the handle lock 19 and the like. Things.

Hooks 14a, 14b and 14c are provided upright from the vending machine main body 11 toward the front. Each hook has a notch 15 near the tip. Also,
At the lower end of the hooks 14a to 14c, there is formed a contact portion 16 which comes into contact with a locking member described later.

The operating rod 17 is disposed in the door body 12 so as to slide in a direction perpendicular to the hook 14, in this embodiment, in a vertical direction, and in the directions of arrows A and B in FIGS. I have. In this embodiment, it is slidably disposed on the guide cylinder 23 of the door body 12 and the like. The operating rod 17 has hooks 14a to
An engagement hole 18 is formed at a position corresponding to 14c. The operating rod 17 has three engagement holes 1 in this embodiment.
8 are formed.

The locking member 20 is rotatably attached to a part of the operating rod 17 by a pin 21.
Oa is urged by a spring 22 in a direction protruding from the engagement hole 18. Therefore, the handle lock 19
The operating rod 17 lifted up by this can maintain the raised state (unlocked state) by the distal end 20 a of the locking member 20 protruding from the locking hole 24 formed in the guide cylinder 23.

Next, the unlocking operation of the lock mechanism for a box configured as described above will be described with reference to FIGS. FIG. 3 is a longitudinal sectional view showing a state in which the door body 12 is opened. In the operating rod 17, the leading end 20 a of the locking member 20 projects from the locking hole 24 of the guide cylinder 23 and the unlocked state is maintained. I have. When the door 12 is closed in this state, the hook 14 erected on the vending machine main body 11 approaches through the locking hole 24.

FIG. 4 shows that the contact portion 16 formed at the tip of the hook 14 comes into contact with the locking member 20, and the locking member 20 is retracted in the direction of arrow C about the pin 21 (FIG. 4). reference). When the door body 12 is almost completely closed, the distal end 20a of the locking member 20 comes off the locking hole 24 as shown in FIG.
The operating rod 17 falls in the direction of arrow D by its own weight. Operating rod 17
When falls by its own weight or spring force, the engaging hole 18 of the operating rod engages the notch 15 formed on the upper surface of the tip of the hook 14 (see FIG. 5). Thereby, the door body 12 is locked to the vending machine main body 11.

As described above, simply closing the door body 12 causes the operating rod 17 to automatically fall, and the vending machine main body 1 to be closed.
The locking operation is completed by engaging with the hook 14 formed on one side.

FIGS. 6 to 8 are perspective views showing the unlocking operation of the lock mechanism for a box according to the present invention. FIG. 6 shows a locked state in which the operating rod 17 drops and engages with the notch 15 of the hooks 14a to 14c. To unlock from this state, the handle lock 19 is operated to raise the operating rod 17 in the direction of arrow A (see FIG. 7). By operating the handle lock 19,
When the operating rod 17 is further raised, the retracted locking member 20 protrudes from a locking hole 24 (not shown) by the urging force of the spring 22 and maintains the raised state. As a result, the operating rod 17 is maintained in the unlocked state, and the door body 12 can be freely opened.

FIG. 9 is an enlarged perspective view of a main part of the box lock mechanism. The operating rod 17 and the handle lock 19 are connected via a cam 25 attached to the rear end of the handle lock. The pin 26 erected on the cam 25 is connected to the operating rod 1.
7 is loosely fitted in an elongated hole 27 formed in an engaging plate 17a extending from a part of the engaging plate 7. Therefore, handle lock 1
9 rotates the cam 25 to rotate the engagement plate 17.
The operating rod 17 is raised via a.

As shown in FIGS. 9 and 10, the locking member 20 is disposed at a part of the operating rod 17 and immediately below the engaging hole 18. As shown in FIG. It is rotatably supported by a pin 21 and has a spring 2
2, the tip 20a is urged in a direction to protrude from the engagement hole 18.

Further, when locking, the door 12 is simply closed, and the tip of the hook 14 pushes and retracts the tip 20a of the locking member 20, as shown in FIGS. Then, the operating rod 17 is dropped by its own weight or spring force. When the operating rod 17 falls, the engaging hole 18 of the operating rod 17 is engaged with the notch 15 of the hook 14 and locked.

The present invention is not limited to the above-described embodiments, and various design changes can be made based on the technical concept of the present invention.

[0020]

As described above in detail, according to the lock mechanism for a box according to the present invention, a door body supported by a hinge or the like so as to be openable and closable with respect to a box body containing a product to be sold is incorporated. A lock mechanism for locking and unlocking the box, a hook standing upright from the box body toward the front, and an operating rod disposed in the door so as to slide in a direction perpendicular to the hook. A locking member that is rotatably disposed on a part of the operating rod, and that holds the unlocked state of the operating rod. By pushing and dropping the operating rod, and engaging the hook with the locking member, the operating rod automatically engages with the hook erected on the box body only by closing the front door of the box. Can be locked. Also,
When unlocking, by operating the handle lock disposed in front of the door, the operating rod rises and the engagement with the hook can be easily released.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing an opened state of a vending machine using a lock mechanism for a box of the present invention.

FIG. 2 is an overall perspective view showing a closed state of a vending machine using the box lock mechanism of the present invention.

FIG. 3 is a longitudinal sectional view showing a state in which a door is opened in the lock mechanism for a box body.

FIG. 4 is a longitudinal sectional view showing the door lock mechanism in the middle of closing the door.

FIG. 5 is a longitudinal sectional view showing a state where the door is closed and locking is completed in the lock mechanism for the box body.

FIG. 6 is a perspective view showing a locked state showing an example of the box locking mechanism of the present invention.

FIG. 7 is a perspective view showing an example of the lock mechanism for the box, showing an unlocking process.

FIG. 8 is a perspective view showing an unlocked state showing an example of the box locking mechanism.

FIG. 9 is an enlarged perspective view of a main part of the lock mechanism for a box body.

FIG. 10 is a front view showing a lock used in the box lock mechanism.

FIG. 11 is an overall perspective view showing an example of a conventional box lock mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Lock mechanism for box 11 Vending machine main body 12 Door 13 Hinge 14a-c Hook 15 Notch 16 Contact part 17 Working rod 17a Engagement plate 18 Engagement hole 19 Handle lock 20 Locking member 20a Tip 21 Pin 22 Spring 23 Guide tube 24 Lock hole 25 Cam 26 Pin 27 Slot

Claims (3)

(57) [Claims] 1. A box lock mechanism for locking and unlocking a door body supported by a hinge or the like so as to be openable and closable with respect to a box body containing a product or the like to be sold. An upright hook, an operating rod disposed in the door so as to slide in a direction perpendicular to the hook, and an operating rod that is rotatably disposed on a part of the operating rod and unlocks the operating rod. A locking member for holding a state, wherein the closing operation of the door causes the tip of the hook to push the locking member to drop the operating rod, thereby engaging the hook with the operating rod locking portion. A lock mechanism for a box. 2. The lock mechanism for a box body according to claim 1, wherein the operating rod is raised and unlocked by operating a handle lock disposed on a front surface of a door body of the box body. 3. The unlocking state is maintained by an engaging member when the operating rod is lifted and unlocked by operating a handle lock disposed in front of a door of the box. The lock mechanism for a box according to claim 1.