JP3196500B2 - Vending machine door lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device for a vending machine in which a door outside the front of a cabinet is divided into upper and lower parts, and the upper door is opened as a swing hatch type product loading door which is opened when refilling the product. About.

[0002]

2. Description of the Related Art FIG. 5 shows the structure of a vending machine to which the present invention is applied. In the drawing, 1 is a vending machine cabinet in which a serpentine type product rack (not shown) is housed, 2 is a sample product display room 3, a product selection button 4, a product outlet 5, a small inspection door. A lower door equipped with 6 and the like, 7 is an upper door as a swing hatch type product loading door equipped side by side on the lower door 2, and 8 is a cylinder for opening the upper door 7 (for example, a compressed gas is sealed in the cylinder. , A gas cylinder that drives a piston rod with the gas pressure), 9 is a door lock mechanism for the upper door 7 attached to the upper end face of the lower door 2, 9 a is a latch of the door lock mechanism 9 attached to the lower end face of the upper door 7. (Latch) 10 is a door lock with an operation handle for unlocking which is incorporated in the front of the lower door 2 and is connected to the door lock mechanism 9 via a link mechanism or the like, and 11 is opened behind the upper door 7. Serpentine is a trade input port of Formula goods rack. In addition, lower door 2
The opening / closing operation handle is incorporated inside the small inspection door 6.

In order to refill a product rack with such a configuration, first, the door lock 10 is unlocked by a key and the operation handle pulled forward is turned to release the door lock mechanism 9 to release the latch 9a. Release the lock. As a result, the upper door 7 jumps upward by the driving force of the cylinder 8 and is held at the open position. Here, after the merchandise is inserted into the merchandise insertion slot 11 and replenished in the merchandise rack, when the upper door 7 is manually pushed down and closed, the latch 9a engages with the door lock mechanism 9 and the upper door 2 is locked in the closed position. .

[0004]

As described above, in the configuration in which the door lock 10 for the swing hatch type upper door 7 for loading goods disposed on the front upper portion of the cabinet 1 is incorporated in the lower door 2, the door lock 10 Since the mounting height is reduced, the upper door 7 can be easily unlocked and the unlocking handle can be easily operated, but the following problems remain in handling safety.

That is, when the door lock 10 is unlocked and the operation handle is turned to release the door lock mechanism 9 of the upper door 7 as described above, the upper door 7 The drive force is used to swing open from the closed position to the fully open position. For this reason, if a person stands in front of the vending machine and inadvertently neglects, there is a risk that the door plate that swings open so as to protrude forward and suddenly hits the face etc. and may be injured. is there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is intended for a swing hatch-type upper door for loading goods described above, which eliminates the danger associated with the door opening operation and safely opens the door. It is an object of the present invention to provide a highly secure door lock device.

[0007]

To achieve the above object, according to the structure of the present invention, a door lock mechanism is provided,
On the lower surface side of the upper door, a stopper for locking and holding the upper door in a half-door locked state when unlocking, and a half-door lock mechanism combining a manual release means of the stopper are provided. A base fixed to the lower surface of the upper door, an oscillating stopper piece having one end pivotally supported by the base and a tip facing the upper surface receiving portion on the lower door side, and a biasing spring of the stopper piece; The slide plate is mounted on the base and linked to the stopper piece, and a handle for releasing the stopper is formed by extending the slide plate forward.

Further, it is preferable to provide a skirt-shaped front cover on the front edge of the lower surface of the upper door so as to cover and hide the handle of the slide plate from the front.

[0009]

In the above construction, when the door lock mechanism for the upper door is released, the door is urged by the cylinder to open all the way to the fully open position. The stopper piece slides on the upper surface of the lower door and abuts against a catch provided on the front edge of the lower door to stop the upper door at the half-open position and lock and hold the door in a half-door lock state. Therefore, there is no danger of the upper door being opened suddenly hitting the face of a person standing in front of the vending machine.

[0010] Then, from this half-door state, when the user grips the handle for releasing the stopper incorporated in the upper door and pulls the slide plate forward, the movement of the slide plate is followed by the engagement between the stopper piece and the catch. As a result, the upper door is opened toward the fully open position by the bias of the cylinder.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. First, FIG. 4 shows a structure of a half-door lock mechanism which is attached to a lower end surface side of the upper door 7 in addition to the door lock mechanism 9 with respect to the swing hatch type upper door 7 for product loading described in FIG. That is, the half door lock mechanism 12
Is a base 13 having a U-shaped cross section as a fixing metal, and a base 1
A stopper piece 15 pivotally supported at the rear end via a pin 14, a torsion coil spring 16 for projecting and urging the tip of the stopper piece 15 downward, and a stepped screw on the lower surface of the base 13. A slide plate 18 supported so as to be slidable in the front-rear direction via a link 17 and a connecting link 21 bridged between the slide plate 18 and the stopper piece 15 via pins 19 and 20; Reference numeral 18 denotes a handle portion 18a for releasing a stopper which is formed by extending a front end portion forward and bent and suspended in an L-shape. The pins 19 and 20 are respectively connected to the base 13 and the stopper piece 15.
Are guided and supported by being fitted into elongated holes 13a and 15a formed in the side wall of.

As shown in FIG. 1, the half door lock mechanism 12 having the above structure has a base 13 at a recessed position on the lower surface of the door with the base 13 in a posture in which the tip of the stopper piece 15 faces forward with respect to the upper door 7. It is fixed at 22. Further, the handle portion 18a of the slide plate 18 is pulled out in front of the lower door 2, and
A skirt-shaped front cover 7a is provided at the front edge of the lower surface of the upper door 7 so as to cover the handle 18a from the front. Further, the stopper piece 1 of the half door lock mechanism 12
The upper front edge of the lower door 2 is provided with a screen-shaped receiving metal 2a that rises upward and abuts against the stopper piece 15 in opposition to the lower door 5.

Next, the operation of the half door lock mechanism 12 will be described. First, in the door locked state in which the upper door 7 is closed, as shown in FIG. 1, the tip of the stopper piece 15 is in contact with the recessed upper end surface of the lower door 2 due to the bias of the spring 16. Further, the handle 18a of the slide plate 18 is hidden behind the front cover 7a and cannot be touched from outside. When the door lock 10 shown in FIG. 5 is unlocked from this door closed state and the door lock mechanism 9 is released by operating the handle, the upper door 2 attempts to swing toward the open position by the driving force of the cylinder 8. On the other hand, as shown in FIG. 2, immediately after the upper door 2 starts to open and move, when the tip of the stopper piece 15 of the half-door lock mechanism 12 advances while sliding on the upper surface of the lower door 2, the catch 2 a The upper door 7 stops at the position against the wall. That is, the upper door 7
Immediately stops at the half-open position with the half-door locked state immediately after the start of the opening operation.

Then, from the door unlocked state and the half-door locked state in FIG. 2, when the hand is inserted into the back side of the front cover 7a and the grip portion 18a is pulled toward the user as shown in FIG. 3, the slide plate 18 moves forward. Following the movement of the slide plate 18, the stopper piece 15 is lifted upward with the pin 14 as a fulcrum via the connecting link 21, and disengaged from the catch 2a on the lower door side. Therefore, in this state, since the stopper piece 15 that has locked the upper door 7 in the half door lock state is released, the upper door 7 receives the driving force of the cylinder and opens toward the fully open position.

Further, as described above, when the swing hatch type upper door 7 is opened, the door is temporarily stopped at the half-open position by the stopper operation of the half-door lock mechanism 12 at the same time as the door is unlocked, and the half-open operation is performed again by manual operation. Door lock mechanism 1
By releasing the stopper of 2 and opening the door to the fully open position, it is safe to avoid the danger that the door plate will suddenly hit the face of the person standing in front of the vending machine while the door is opening The door can be opened.

[0016]

As described above, according to the structure of the present invention, a swing hatch type upper door for loading goods is provided with a half door lock mechanism in which a stopper and a manual stopper release means are combined. When opening the upper door, the door does not open from the closed position to the fully open position at once, but temporarily stops at the half open position of the half door locked state during the opening,
From here, the stopper of the half-door lock mechanism is released and opened by manual operation, thereby avoiding the danger of the door being opened suddenly hitting the face of the person standing in front of the vending machine etc. As a result, the swing hatch type upper door can be safely opened.

[Brief description of the drawings]

FIG. 1 is a diagram showing a closed state of a swing hatch type upper door equipped with a door lock device according to an embodiment of the present invention.

FIG. 2 is a diagram showing a state of a half-door lock when an upper door is opened.

FIG. 3 is a diagram showing a state in which a half door is unlocked when the upper door is opened.

FIG. 4 is a configuration diagram of a half door lock mechanism in FIG. 1;

FIG. 5 is an external perspective view of the entire vending machine to which the present invention is applied.

[Explanation of symbols]

 Reference Signs List 1 cabinet 2 lower door 2a catch 7 upper door (swing hatch type) 7a front cover 8 cylinder 9 door lock mechanism 9a latch 10 door lock 12 half door lock mechanism 13 base 15 stopper piece 16 spring 17 step screw 18 slide plate 18a Handle part 21 Connecting link

Claims (2)

(57) [Claims] 1. The front outer door of a cabinet is divided into upper and lower two parts,
A door lock device of a vending machine configured as a swing hatch type product loading door that opens and opens the upper door upward by the bias of a cylinder, and a door lock mechanism that locks the upper door to a closed position, and When a door lock with an operation handle for unlocking is incorporated in the lower door,
A half door lock mechanism, which is provided in combination with a door lock mechanism, is provided on the lower surface side of the upper door in combination with a stopper for locking and holding the upper door in a half door lock state when unlocking, and a manual release means for the stopper. This half-door lock mechanism includes a base fixed to the lower surface of the upper door, a swinging stopper piece having one end pivotally supported by the base and a distal end opposed to an upper surface receiving portion on the lower door side. It comprises a biasing spring of a stopper piece, a slide plate mounted on the base and linked to the stopper piece, and a handle for releasing the stopper formed by extending the slide plate forward. Door lock device for vending machines. 2. The automatic vending machine according to claim 1, wherein a skirt-shaped front cover is provided on the front edge of the lower surface of the upper door so as to cover the handle of the slide plate from the front. Machine door lock device.