JPH0724542Y2 - Door opening / closing device for vending machines - Google Patents

Description

TECHNICAL FIELD The present invention relates to a door opening / closing device for a vending machine.

2. Description of the Related Art A conventional door opening / closing device for a vending machine will be described below with reference to FIGS.

FIG. 7 is a side view of a conventional vending machine. In FIG. 7, reference numeral 1 is a main body of a vending machine, in which articles such as food are stored, and an outer wall portion is made of a heat insulating material to cool the inside thereof to keep it at a predetermined temperature. Reference numeral 2 denotes a door, which seals the main body 1 and is thickly provided with an article take-out port through which articles such as foods are paid out, a coin slot, a display section, and a merchandise selection button. Reference numeral 3 denotes a door opening / closing device, one end of which is fixed to the main body 1 and the other end of which supports the door 2 so that the door 2 can be opened and closed. A flexible packing 4 is interposed between the main body 1 and the door 2 to ensure airtightness inside the main body 1 when the door 2 is closed.

FIG. 8 and FIG. 9 are top views of the conventional vending machine showing the opened / closed state of the door. In FIGS. 8 and 9, 5
Is a drawer type stocker, in which articles 6 such as foods are directly stacked, and when the articles 6 are stored, the stocker 5 is pulled out so that the articles 6 can be easily stored in the back.

Problems to be Solved by the Invention In the above-described conventional configuration, when the door 2 is opened and the articles 6 are stored, the stocker 5 is of a pull-out type, and therefore, as shown in FIG. There is a problem that a dead space 1a is generated in the vending machine body 1, and the storage space is wasted by that amount, and the storage amount of the articles 6 is reduced.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a door opening / closing device for a vending machine that can store articles without wasting the storage space.

Means for Solving the Problems In order to solve the above problems, a door opening / closing device of a vending machine of the present invention is interposed between the vending machine body and one side end of the door, and one end of each link is A parallel link pivotally supported on the main body side and the other end of each link pivotally supported on an arm rotatably attached to the door, and a cam plate fixed to the door side via an axis. , Which is rotatably provided on the main body side and has an engaging claw at one end thereof that engages with the shaft of the cam plate when the door is closed, and contacts the peripheral surface of the cam plate to open and close the door. A lock lever having a cam follower surface for engaging and disengaging the engagement claw with respect to the shaft of the cam plate, and an engagement claw of the lock lever provided on the other end side of the lock lever. A spring for urging the lock lever A stopper for restricting the rotation position of the spring by the spring.

Action With the above configuration, when the door is opened and closed, the parallel link allows the door to rotate and retract sideways, so when the door is opened, the door is moved to the side to open the entire body opening. Then
It is possible to take out and put in the stocker containing the goods over the entire opening, and there is no dead space for the thickness of the door, which is caused by the door obstructing as in the past.
It is possible to effectively use the space of the vending machine body and increase the amount of articles stored. When closing the door, the cam follower surface of the lock lever comes into contact with the peripheral surface of the cam plate to rotate the lock lever once against the spring biasing direction. Since they are engaged, the parallel link side of the door does not open when the door is closed.
Also, only by opening the end of the door opposite to the parallel link, the cam plate rotates together with the door with the end on the parallel link side serving as a fulcrum, and the cam follower of the lock lever comes into contact with the peripheral surface of the cam plate. The surface is pressed to rotate the lock lever against the biasing direction of the spring, and the engaging claw of the lock lever is disengaged from the shaft of the cam plate. Will also be possible.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2 are partial top views of a vending machine showing parallel links of a door opening / closing device when the door is closed and when the door is opened according to an embodiment of the present invention. In FIG. 1 and FIG. 2, 11 is a parallel link, which is interposed between the vending machine main body 12 and one side end C of the door 13 at two upper and lower positions, and one end of each link 14, 15 is Axis 16,17
It is rotatably attached to the main body 12 side via
The other ends of the links 14 and 15 are pivotally attached to an arm 19 rotatably attached to the door 13 via a shaft 18. A flexible packing 20 is fixed to the outer periphery of the door 13 and is interposed between the main body 12 and the door 13 to keep the main body 12 airtight when the door is closed.

FIG. 3 is a perspective view showing a lock portion of the door opening / closing device. In FIG. 3, reference numeral 21 is a cam plate, and the shaft of the arm 19 is on the door side.
It is fixed via a fixed shaft 22 arranged coaxially to the shaft 18. Reference numeral 23 denotes a lock lever, which is rotatably provided on the main body side via a shaft 29, and has an engaging claw 24 which is engaged with the fixed shaft 22 of the cam plate 21 at one end thereof when the door is closed. ,
The cam follower (26) is in contact with the peripheral surface (25) of the cam plate (21) to engage and disengage the engagement claw (24) with respect to the fixed shaft (22) of the cam plate (21) when the door is opened and closed. 27 is a spring, which is an engaging claw of the lock lever 23
24 is urged in a direction to engage with the fixed shaft 22 of the cam plate 21. 28
Is a stopper that limits the rotational position of the lock lever 23 by the spring 27. Further, the shaft 29 is provided coaxially with the shaft 16.

With the above configuration, the operation will be described below.

5 and 6 are diagrams showing the operation of the lock portion when the door is opened and closed. 1 and 5 correspond to when the door is closed,
2 and 6 correspond to when the door is opened. In FIGS. 1 and 5, when the door is opened and closed, the door 13 is the main body 12 of the parallel link 11.
While rotating while deforming the flexible packing 20 around the shafts 16 and 17 on the side, the door 13 is opened and closed as shown by an arrow A by the movement of the parallel link 11. At this time, as the door 13 is opened and closed, the peripheral surface 25 of the cam plate 21 contacts the cam follower surface 26 of the lock lever 23, and the engagement claw 24 is engaged and disengaged. That is, in conjunction with the opening operation of the door 13, the peripheral surface 25 of the large diameter portion of the cam plate 21 presses the cam follower surface 26, and the lock lever 23 is centered on the shaft 29 against the biasing direction of the spring 27. And the engaging claw 24 engaged with the fixed shaft 22 of the cam plate 21 is released.

Further, in conjunction with the closing operation of the door 13, first, the peripheral surface 25 of the large diameter portion of the cam plate 21 pushes the cam follower surface 26 to lock the lever.
23, and then the peripheral surface 25 of the small diameter part
The engaging claw 24 rotates in the biasing direction of the spring and engages with the fixed shaft 22 by moving to a position opposite to.

2 and 6, in the door open position, the door 13 is moved in the direction of the arrow B by the parallel link 11, and the opening surface 30 for accommodating the articles of the main body 12 is not obstructed by the door 13 over the entire surface. It will be released. The position of the lock lever is regulated by a stopper 28 so that the engagement claw 24 can be smoothly engaged when the door 13 is closed.

In this way, when the door 13 is closed,
The lock lever 23 can prevent the opening of 13 at the one end C side, and at the time of opening the door 13,
The parallel link 11 causes the door 13 to move in the direction of the arrow B, which opens the entire opening surface 30 of the main body 12, so that the door 13 does not interfere with the storage of articles such as food in the main body 12. There is no such dead space.

As described above, according to the present invention, the parallel link interposed between the vending machine main body and one side end of the door does not disturb the opening of the main body after the door is rotated and opened. Since the door can be moved to the position, it is possible to effectively use the space of the vending machine body without creating a dead space of the door thickness in the article storage space of the main body unlike the conventional case. It is possible to increase the storage amount of.

[Brief description of drawings]

FIGS. 1 and 2 are partial top views of a vending machine showing parallel links of the door opening / closing device when the door is closed and when the door is closed according to an embodiment of the present invention, and FIG. 3 is a lock of the door opening / closing device. FIG. 4 is a perspective view showing a portion, FIG. 4 is a sectional view taken along line DD of FIG. 1, and FIGS. 5 and 6 are views showing a lock portion of the door opening / closing device when the door is closed and when the door is opened, and FIG. Is a side view of the conventional vending machine, and FIGS. 8 and 9 are top views of the conventional vending machine showing the opened / closed state of the door. 11 …… Parallel link, 12 …… Vending machine body, 13 …… Door,
14,15 …… link, 16,17,18,29 …… axis, 19 …… arm,
21 …… Cam plate, 22 …… Fixed shaft, 23 …… Lock lever, 24
...... Engagement claws, 25 …… Peripheral surface, 26 …… Cam follow surface, 27…
… Spring, 28 …… Stopper.

Claims (1)

[Scope of utility model registration request] 1. A vending machine main body and one end of a door are interposed, one end of each link is pivotally supported on the main body side, and the other end of each link pivots on the door. A parallel link pivotally supported by an arm that is freely attached, a cam plate fixed to the door side via an axis, and a rotatably provided body side, and one end of which when the door is closed. A cam follower surface having an engaging claw that engages with the shaft of the cam plate and abutting against the peripheral surface of the cam plate to disengage the engaging claw from the shaft of the cam plate when the door is opened and closed. A lock lever, a spring provided on the other end side of the lock lever for urging the engagement claw of the lock lever in a direction to engage with the shaft of the cam plate, and a rotation of the lock lever by the spring. Door of a vending machine with a stopper that regulates the position Closing device.