JP5014286B2 - Vending machine door lock mechanism - Google Patents

Description

  The present invention relates to a door lock mechanism of a vending machine, and more particularly to an improvement of a slide structure of a door lock slide member.

As a lock mechanism for vending machine doors, especially the front door, a lock member provided on the vending machine body side (for example, a hook-shaped lock member) is arranged on the door side and can be moved up and down and compared vertically. There is known a mechanism that includes a slide member that extends for a long time and locks the vending machine main body with the door closed by moving the slide member and engaging the lock member (for example, Patent Document 1). The movement of the slide member is performed, for example, by rotating a handle provided on the front surface side of the door and transmitting a driving force to the slide member via a link mechanism or the like engaged with the slide member. In such a door lock mechanism, for example, as shown in FIG. 6, the slide mechanism of the door lock slide member 101 arranged on the door side is fixed to the door at a position such as the upper and lower portions of the slide member 101. A guide elongated hole 104 formed in the slide member 101 is slid along a fixed shaft 103 attached to the slide member guide 102.
JP 2000-123236 A

  However, in the slide mechanism of the slide member 101 as described above, since the guide slot 104 portion of the slide member 101 slides along the fixed shaft 103, the frictional resistance between these members may increase. is there. When this frictional resistance increases, the handle operating force required for the vertical movement of the slide member 101 for unlocking and locking the door increases, and there is a possibility that the operation may not be performed smoothly. In addition, when the door is distorted or the like, the handle becomes very heavy, and unlocking may be difficult, and in this case, special adjustment is required.

  The object of the present invention is to pay attention to such problems, abolish the conventional sliding structure between the fixed shaft 103 and the guide elongated hole 104 portion, and adopt a rolling type sliding structure using a roller, so that the sliding member It is an object of the present invention to provide a door lock mechanism for a vending machine that greatly reduces the frictional resistance when moving the door, and can be easily and smoothly unlocked and locked at all times with an extremely small handle operating force.

  In order to solve the above problems, a door lock mechanism of a vending machine according to the present invention includes a lock member provided on the vending machine body side and a slide member disposed on the door side and movable up and down. In a door lock mechanism of a vending machine that locks a door to a vending machine main body by moving a slide member and engaging with the lock member, the slide member extends in a vertical direction for guiding the slide member. It comprises a roller characterized in that it can roll on the guide surface.

  In such a door lock mechanism of the vending machine according to the present invention, the slide mechanism of the slide member uses a roller in place of the conventional sliding structure of the fixed shaft and the guide elongated hole portion. Since it is a rolling type slide structure, the frictional resistance when moving the slide member is drastically reduced (that is, the frictional resistance is hardly received), and the driving force for moving the slide member, for example, the handle described above The operating force is greatly reduced. As a result of the extremely light handle operation, the door can be unlocked and locked very easily and smoothly.

  In the door lock mechanism of the vending machine according to the present invention, the roller can be rotatably supported by a slide member via a shaft. Although various forms can be adopted as the rotatable structure of the roller, by making the rotatable structure via the shaft, it is possible to easily move the shaft in a specific direction or apply a biasing force to the shaft. Thus, it becomes possible to easily employ a roller position adjusting mechanism and urging means described later.

  Moreover, it is preferable that a plurality of the rollers are arranged in the longitudinal direction of the slide member (that is, in the vertical direction). When the slide member is moved, the slide member is guided by the plurality of rollers, so that the posture of the slide member is stably maintained in a desired posture. As a result, the door unlocking and locking operations are performed more smoothly.

  In the case where a plurality of rollers are provided, it is preferable that at least one of the rollers is provided so that the position thereof can be adjusted relative to the slide member in the direction toward the guide surface and in the opposite direction. As a result, even if there is some dimensional error or variation in the distance between the guide surfaces, each roller can be properly landed on the corresponding guide surface, thereby enabling each roller to roll smoothly. Therefore, the slide member without backlash can be moved up and down.

  In particular, a desired position adjustment is automatically performed by adopting a structure in which the roller provided so that the position can be adjusted is urged in a direction toward the corresponding guide surface by the urging means. Therefore, dimensional errors and variations in the distance between the guide surfaces are automatically absorbed. Further, even when similar dimensional errors and variations occur due to door distortion and the like, automatic absorption is possible. Arbitrary means can be adopted as the urging means, and it is preferable to employ a leaf spring because it is small, inexpensive and can be easily manufactured.

  Further, in the present invention, the slide member has a configuration divided in the longitudinal direction, and a configuration is provided in which the slide member is configured to move integrally up and down by connecting the divided members to each other. You can also By setting it as a division | segmentation structure, since each divided | segmented member can be formed in a short length, it becomes possible to handle and assemble easily.

  As described above, according to the door lock mechanism of the vending machine according to the present invention, the slide mechanism of the slide member is configured to be a rolling slide structure by the roller, and hardly receives frictional resistance when the slide member is moved. As a result, the movement of the slide member and the handle operation therefor can be performed very lightly and smoothly.

  In addition, by arranging a plurality of rollers and providing at least one roller so that the position can be adjusted in a specific direction, preferably automatically adjusted by biasing by the biasing means, smoother unlocking and locking is possible. Operation becomes possible.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
A door lock mechanism of a vending machine according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the vending machine 1 includes, for example, a vending machine body 2 whose front side is opened and a door 3 that opens and closes the front surface of the vending machine body 2. On the front surface of the door 3, for example, a display unit 4 for displaying a product sample, a product takeout port 5 and the like are provided. In this embodiment, a handle 6 for opening the door 3 and a lock 7 embedded in the handle 6 are provided on the front surface of the door 3. The handle 6 advances forward by unlocking the lock 7, and by rotating the advanced handle 6, the lock by a slide member described later can be released and the door 3 can be opened. However, the structure of the handle 6 portion is not limited to the above structure, and an arbitrary structure can be adopted.

  FIG. 2 shows a main part of the door lock mechanism of the present invention including a door lock slide member. The door lock mechanism 11 includes a plurality of hook-shaped lock members 12 fixedly arranged at predetermined positions on the vending machine main body 2 side, and a slide member 13 arranged on the door 3 side and movable up and down. The door 3 can be locked to the vending machine main body 2 by moving the member 13 and engaging the opening 14 provided in the slide member 13 with the corresponding lock member 12. When opening the door 3, the slide member 13 is moved in the vertical direction so that the door 3 can be opened by releasing the engagement between the openings 14 and the corresponding lock members 12. It has become. The vertical movement of the slide member 13 is caused by rotating the link mechanism 15 provided on the back side of the portion of the door 3 where the handle 6 is installed by operating the handle 6 described above, and the link engaged with the slide member 13. The mechanism 15 is operated through a turning operation.

  In the present embodiment, the slide member 13 is composed of members 13a and 13b that are divided into two in the vertical direction. Both the members 13a and 13b are connected by a connecting portion 16 so that the slide member 13 extends in the vertical direction. It is configured to be a member that extends relatively long (in the direction) and can move up and down as a whole. The slide member 13 is provided with a plurality of rollers 17a, 17b, and 17c that can roll on a guide surface that extends in the vertical direction for guiding the slide member 13. A guide surface that guides the slide member 13 and on which the rollers 17a, 17b, and 17c roll is extended in the vertical direction provided on the door 3 so as to correspond to the rollers 17a, 17b, and 17c. The guide members 18a, 18b and 18c are formed. In order to keep the slide member 13 extending in a predetermined vertical direction, it corresponds to the guide members 18a and 18c corresponding to the rollers 17a and 17c disposed on the upper and lower ends and the roller 17b disposed on the intermediate portion. It is preferable that the guide member 18b is disposed on the opposite side to the slide member 13 therebetween. Accordingly, when the slide member 13 is moved up and down via the rollers 17a and 17c that roll on the guide surface by the guide members 18a and 18c and the roller 17b that rolls on the guide surface by the guide member 18b. Also, the slide member 13 is maintained in a predetermined posture. In this arrangement, in order to keep the posture more stable, as shown in FIG. 3, it is preferable that the position of the roller 17 b arranged at the intermediate portion is set closer to the center in the longitudinal direction of the slide member 13.

  In this embodiment, the slide member guide 19 as shown in FIG. 6 is left so that the slide member 13 can be held at a substantially predetermined position. However, the width of the long hole 21 is set wide so that the shaft 20 fixed to the slide member guide 19 and the long hole 21 portion formed in the slide member 13 do not contact and slide.

  The roller provided on the slide member 13 is rotatably supported, and the support structure of this roller is configured as follows. In this embodiment, as shown in FIG. 4, the rollers 17 a and 17 c are configured to rotate integrally with the shaft 22, and the shaft 22 is rotatable in a hole or a long hole 23 formed in the slide member 13. It is supported. Further, as shown in FIG. 5, the roller 17b that is rotatably supported is supported so that its position can be adjusted (movable) in the direction toward the guide surface formed by the guide member 18b and in the opposite direction. . The shaft 26 is urged in the direction toward the guide surface formed by the guide member 18b by the urging arm portion 25 of the leaf spring 24 as the urging means, whereby the roller 17b is moved to the guide member 18b. It is always urged toward the guide surface. As described above, when the roller 17b disposed at the center in the longitudinal direction of the slide member 13 is urged toward the guide surface on one side, the remaining rollers 17a and 17c are positioned on the other side by utilizing the reaction force. It will be pressed in the direction of the guide surface. As a result, all the rollers 17a, 17b, and 17c are brought into contact with the corresponding guide surfaces to enable the target rolling on the guide surfaces, and the rollers 17b are deformed by the deformation of the biasing arm portions 25 of the leaf springs 24. The rotation center position is freely adjusted according to the positional relationship with the guide surface of the corresponding guide member 18b. As a result, even if there are dimensional errors or variations in the distance between the opposing guide surfaces as dimensions related to the sliding operation of the slide member 13, they are automatically absorbed, and the door 3 is distorted. Even if similar dimensional errors and variations occur due to this, they can be automatically absorbed. Therefore, the slide member 13 can be smoothly moved up and down while the desired posture of the slide member 13 is maintained.

  In the door lock mechanism 11 according to the present embodiment configured as described above, the slide mechanism of the slide member 13 has a rolling slide structure using the rollers 17a, 17b, and 17c. The frictional resistance at the time is almost eliminated, and the slide member 13 is moved very lightly. Therefore, the operation force of the handle 6 for unlocking and locking the door 3 is greatly reduced, and the operation can be easily and smoothly performed.

  The position of at least one roller 17b of the plurality of rollers 17a, 17b, 17c is configured to be adjustable in a specific direction, and preferably, the position can be automatically adjusted by a biasing structure using a biasing means such as a leaf spring 24. This makes it possible to absorb dimensional errors and variations in the distance between the roller guide surfaces that may occur due to manufacturing errors, door distortion, etc., by the above-mentioned position adjustment, and smoother unlocking and locking. Operation becomes possible.

  The door lock mechanism of the vending machine according to the present invention can be applied to any vending machine provided with a slide member for door locking / unlocking that is moved up and down.

1 is an external perspective view of a vending machine to which a door lock mechanism according to an embodiment of the present invention is applied. It is a perspective view which shows the principal part of the door lock mechanism of the vending machine which concerns on one embodiment of this invention. It is a schematic side view at the time of performing preferable roller arrangement | positioning in the door lock mechanism of FIG. It is a top view which shows a part of roller in the door lock mechanism of FIG. 2, and its support structure. It is a see-through | perspective perspective view which shows the roller provided with the position adjustment mechanism in the door lock mechanism of FIG. 2, and its support structure. It is a see-through | perspective perspective view which shows the slide mechanism part of the slide member in the conventional door lock mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vending machine 2 Vending machine main body 3 Door 4 Display part 5 Goods taking-out port 6 Handle 7 Lock 11 Door lock mechanism 12 Lock member 13 Slide member 13a, 13b Divided member 14 Opening part 15 Link mechanism 16 Connection part 17a, 17b, 17c Rollers 18a, 18b, 18c Guide member 19 Slide member guide 20 Shaft 21 Long hole 22 Shaft 23 Hole or long hole 24 Plate spring 25 as urging means 25 Biasing arm 26 Shaft

Claims (6)

  A lock member provided on the vending machine main body side and a slide member arranged on the door side and movable up and down, and moving the slide member into engagement with the lock member to door the vending machine main body In a door lock mechanism of a vending machine that locks a vending machine, the slide member has a roller that can roll on a guide surface that extends in the vertical direction for guiding the slide member. Machine door lock mechanism.   The door lock mechanism of a vending machine according to claim 1, wherein the roller is rotatably supported by the slide member via a shaft.   The door lock mechanism of the vending machine according to claim 1 or 2, wherein a plurality of the rollers are arranged in a longitudinal direction of the slide member.   The door lock of the vending machine according to claim 3, wherein at least one of the plurality of rollers is provided so as to be positionally adjustable relative to the slide member in a direction toward the guide surface and in a direction opposite thereto. mechanism.   The door lock mechanism of the vending machine according to claim 4, wherein the roller provided so that the position can be adjusted is urged in a direction toward the guide surface by an urging means.   6. The slide member according to claim 1, wherein the slide member has a configuration divided in a longitudinal direction, and the divided members are connected to each other to constitute a slide member that can move integrally up and down. The door lock mechanism of the vending machine described in 1.

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