JPH0739016Y2 - Door rotation control device for vending machines - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a door rotation device that holds a door covering a front opening of a vending machine that is installed indoors or outdoors and sells products such as beverages and foods at a predetermined opening angle. A motion control device.

[Conventional technology]

During work such as replenishment and maintenance of products stored in the case, it is necessary to open the door that covers the front opening of the case and keep the opening angle constant during the work. Therefore, in the conventional vending machine, for example, there is a door rotation restricting device in which the case body and the door are connected by a chain so that the door does not open more than a predetermined angle due to the length of the chain.

Further, as disclosed in Japanese Utility Model Laid-Open No. 56-53276, one end of a regulating arm is rotatably supported by a door and a groove is formed at the other end along the longitudinal direction of the regulating arm, and A circular hole having a diameter larger than the width of the groove is formed on the case side end. Further, by fixing a pin having a small-diameter portion that fits in the groove and a large-diameter portion that has a diameter larger than the groove width and smaller than the circular hole portion to the case, the door is opened and the pin moves to the restricting arm. There is a door rotation restricting device in which a large-diameter portion of a pin is fitted into the circular hole of the groove so that the door is held at that position.

[Problems to be solved by the device]

However, in such a conventional door rotation restricting device,
In the case of the former chain, the door does not open more than the specified angle during the opening work, but since the door cannot be held at any angle within this angle, the wind, human contact, and the pivot axis of the door are not vertical. Therefore, there is a problem that the door rotates in the closing direction, which hinders the work.

In the latter case of the restriction arm, the door can be held at a constant angle during the opening work, but it cannot be held at an angle other than a specific angle determined by the positional relationship between the length of the restriction arm and the pin. Therefore, there is a problem that the door cannot be held at an opening angle suitable for each work content, which changes depending on the type of work. That is, even if the opening angle with the door is an appropriate opening angle for product replenishment work, it may be unsuitable for maintenance work. For example, in product replenishment work, the price attached to the back side of the door while performing replenishment work Operation of setting switch, test sale switch, etc. is required. Therefore, the opening angle of the door is preferably an angle at which the worker can easily perform this work at the same time. On the other hand, in the maintenance work, it is easier to open the door as much as possible when removing the device built in the case body.

Therefore, none of the above-described conventional door rotation restricting devices can deal with such a problem.

An object of the present invention is to provide a door rotation restricting device for a vending machine, which can hold the door at an opening angle suitable for the work when the work is performed by opening the door.

[Means for Solving the Problems]

In order to solve the above problems, according to the present invention, a regulation arm that regulates rotation of a rotatably supported door that covers a front opening of a case that houses a product is provided. In a door rotation restricting device for a vending machine that restricts the rotation of the door, one end of the restricting arm is rotatably supported by either one of the door and the case, and the other end is formed and both ends are closed. A plurality of grooves, a pin fitted into the groove and fixed to the other end of the restriction arm, and a plurality of contact portions that engage with the pin and restrict movement of the pin in the longitudinal direction of the groove are provided along the longitudinal direction of the groove. And a restriction piece having flexibility formed as described above.

[Action]

According to this invention, one of the door and the case rotatably supports one end of the regulation arm and the other has a groove formed at the other end and closed at both ends, and a groove fitted into the groove and provided at the other end of the regulation arm. Since the fixed pin and the flexible restricting piece formed with a plurality of contact portions that engage with the pin to restrict the movement of the pin in the longitudinal direction of the groove are provided along the longitudinal direction of the groove. , When the door is opened and closed and the pin engages with the abutting part, if the opening and closing force of the door is below a certain level, the bending of the restriction piece due to the opening and closing force acting on the abutting part via the pin should be kept below a certain level. It is possible to prevent the pin from moving in the longitudinal direction in the groove, and to apply an opening / closing force of a certain amount or more through the pin to bend the restricting piece and disengage the pin from the contact portion. Therefore, the pin, which engages with the abutting portions at a plurality of positions and is prevented from moving in the longitudinal direction in the groove, can hold the door at a plurality of turning positions through the restricting arm, and can select the opening angle of the door. Is also possible,
Since the movement of the pin in the longitudinal direction of the groove is restricted at the groove end,
The maximum opening angle of the door can also be regulated.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a horizontal cross-sectional view of a main portion of a door opening restricting device of a vending machine according to the present invention in a state where a door is opened. The lower side of the figure is a front side, and FIG. FIG. 4 is a front vertical cross-sectional view of the main part with the door closed, and FIG. 3 is a right-side vertical cross-sectional view of the main part of FIG.
(B) is a plan view (A) and a front view (B) showing the restriction piece of FIG. 1, respectively, and FIG. 5 is an automatic view with the door opened including the door rotation restricting device of the vending machine of the present invention. FIG. 3 is a perspective view showing the internal configuration of the vending machine as seen from the front upper left.

1 to 5, reference numeral 1 denotes a case having an opening on the front surface. In this case 1, a product storage shelf 2 for storing products is housed and installed, and a front opening of the case 1 is covered with a door 3. There is. In the holes formed on the upper and lower sides of the right end of the door 3, upper and lower ends of the right end of the horizontal rectangular flat plate-shaped bearing 4 with the front end protruding forward to the upper and lower ends of the right end of the case 1 and fixed at the rear end, respectively. Further, the door 3 is rotatably supported by the case 1 by inserting the rotary shaft 5 whose vertical axis direction is vertical with the lower end fixed, and the door rotation restricting device 6 is provided at the lower right of the front side of the case 1.

A rear end of a box-shaped support body 7 whose bottom surface is open is fixed to the front end surface of the bottom portion of the case 1, and the door rotation restricting device 6 is opened to the top surface of the support body 7 and has an opening surface. Form an elongated groove 8 elongated in the left-right direction. The side surface on the front side of the groove 8 is formed by the rear surface of the restriction piece 9 formed from a flexible material in which the upper surface of the left end portion is screwed and supported on the inner lower surface of the support body 7. A plurality of contact portions 10 are formed along the longitudinal direction of the groove 8 so as to project into the groove 8 and the left chevron is slightly smaller than the right chevron. Further, a columnar pin 11 whose axial length direction is vertical is fitted in the groove 8, and the movement of this pin 11 is regulated when the pin 11 comes into contact with the contact portion 10. . The upper end of this pin 11 is
A square rod-shaped one end of which is rotatably supported in a horizontal plane through a rotary shaft 13 having a vertical cross section which is rotatably supported by a bearing 12 having a U-shaped cross section fixed to the inside of the bottom of the door 3. Regulating arm 14
Fixed to the other end of.

In the above-mentioned configuration, the operation of each component of the door rotation restricting device 6 associated with the opening and closing of the door 3 will be described below. First, when the door 3 is closed, the longitudinal centerline of the regulating arm 14 is substantially aligned with the longitudinal centerline of the groove 8, and the pin 11 is slightly to the right of the left end of the groove 8. When the door 3 is opened with a constant opening / closing force from this state, the pin 11 moves leftward in the groove 8 until the centers of the rotating shaft 5, the pin 11 and the rotating shaft 13 are aligned. . After that, when the door 3 is further opened, the pin 11 moves to the right in the groove 8 and eventually comes into contact with the M-shaped contact portion 10, and its movement is restricted, and the door 3 rotates in the opening direction. Is blocked. At this time, when the opening / closing force acting on the contact portion 10 via the pin 11 of the door 3 is such a force as to push the left chevron of the M-shaped contact portion 10 to bend the restriction piece 9, the restriction piece 9 will move. As a result of the bending, the contact portion 10 moves from the inside of the groove 8 to the front side, and the pin 11 gets over the left chevron of the M-shaped abutting portion 10 and comes between the left and right chevrons. If the opening of the door 3 is stopped in this state, the movement in the longitudinal direction in the groove 8 will be the contact portion.
The movement of the regulating arm 14 is restrained by the pin 11 regulated by 10, and the door 8 is held at the pivot position. Further, from this state, if the large chevron on the right side of the M-shaped contact portion 10 is further pushed to bend the restriction piece 9 and the pin 11 gets over, the pin 11 is
The movement is not restricted and the door 3 can be opened until it comes into contact with the next contact portion 10. In this way, each time the pin 11 comes to the position of the contact portion 10, the door 8 can be restrained and held at the rotating position,
If the contact portion 10 is formed according to the opening angle of the door 8 that is most suitable for the work, the door 3 can be held at the optimum opening angle for each work content such as replenishment of products and maintenance work, and the work is easy. And can be done efficiently.

According to the present invention, one of the door and the case rotatably supports one end of the regulating arm and the other has a groove formed at the other end, and both ends thereof are closed, and the groove is fitted into the groove and the regulation is performed. A pin fixed to the other end of the arm, and a flexible restricting piece formed with a plurality of contact portions that engage with the pin and restrict movement of the pin in the longitudinal direction of the groove along the longitudinal direction of the groove. As a result, the opening angle can be selected, the door can be held at multiple rotation positions, and the maximum opening angle of the door can be restricted.As a result, when opening the door to perform work, the optimum opening angle for the work can be set. The effect that the door can be selected and held and that the structure is simple and inexpensive can be obtained.

[Brief description of drawings]

FIG. 1 is a horizontal cross-sectional view of a main part of the present invention showing the structure of a door rotation restricting device of a vending machine with the door open, and FIG. 2 is the main part of the vending machine with the door shown in FIG. 1 closed. Front vertical cross-sectional view, FIG. 3 is a right-side vertical cross-sectional view of an essential part of FIG. 2, and FIGS. 4 (A) and (B).
1 is a plan view (A) and a front view (B) showing the restriction piece of FIG. 1, respectively, and FIG. 5 is a view of the vending machine with the door opened including the door rotation restricting device of the vending machine of the present invention. It is the perspective view seen from the front left slanting top which shows an internal structure. 1 …… Case, 2 …… Product storage shelf, 3 …… Door, 4,12 ……
Bearings, 5,13 ... Rotating axis, 6 ... Door rotation restricting device, 7 ...
… Support, 8 …… Groove, 9 …… Restricting piece, 10 …… Contact part, 11
…… Pin, 14 …… Regulatory arm.

Claims (1)

[Scope of utility model registration request] 1. A restriction arm for restricting rotation of a rotatably supported door that covers a front opening of a case for containing products,
In a door rotation restricting device for a vending machine that restricts the rotation of the door by the restricting arm, one end of the restricting arm is rotatably supported on one of the door and the case and is formed on the other. A groove having both ends closed, a pin fitted in the groove and fixed to the other end of the restriction arm, and a plurality of contact portions for engaging with the pin and restricting movement of the pin in the longitudinal direction of the groove. A door rotation regulating device for a vending machine, comprising a flexible regulating piece formed along a longitudinal direction.