JPH0454542Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a product delivery device for a vending machine that sequentially delivers stacked products.

(b) Prior art A cylinder is provided with an extrusion member that stacks and stores products in two rows, front and back, on a substrate and alternately pushes and delivers them from below, and has an endless spiral groove below the substrate at the bottom of the extrusion member. Generally known product delivery devices are provided with a cam and a moving body that is guided by the groove and moves in the axial direction of the cylindrical cam, the moving body and the pushing member are connected, and the cylindrical cam is rotated by a drive device. ing. For example, in the rear of JP-A-57-199089, there is a vending machine that alternately pushes out and dispenses products stacked in two rows, front and back, from below. a shaped cam body, a driving means for rotationally driving the cam body, a moving body that moves in the axial direction of the cam body guided by the spiral groove of the cam body, and a product that moves integrally with the moving body. It is equipped with a push-out plate for pushing out, and a detection means for detecting a predetermined position of the movable body and stopping the drive of the drive means, and the detection means includes a first detection body that detects the predetermined position after one reciprocating operation of the movable body. and a second detection body that detects a predetermined position after the forward movement and return movement of the moving body, and one of the first and second detection bodies is electrically connected to the driving means. 1. Selectively control the moving operation of the moving body by
A configuration is disclosed in which one or two products are delivered at the time of sale.

However, in the above configuration, a micro switch that detects a predetermined position after the reciprocating movement of the movable object and a micro switch that detects the predetermined position after the forward movement and backward movement are installed, and either one of the micro switches is installed. Since the configuration is such that the drive means is electrically connected to switch between sending out one product or sending out two products, two microswitches are required, and one of the microswitches is always unused, which is extremely unreasonable. Become something.

Therefore, a product dispensing device for a vending machine disclosed in Japanese Utility Model Application Publication No. 62-14574 is provided with a reciprocating movement control section and a one-way movement control section that move in the same direction as the moving object as the moving object moves. an actuating member, and a detection switch that detects a predetermined movement position of the actuating member and stops a drive device that is a drive source for moving the movable body, and the detection switch is connected to the reciprocating movement control unit and the one-way movement control unit. By selectively attaching them to positions facing each other, one detection switch can control the reciprocating movement and one-way movement of the movable body, and can switch between sending out one product or sending out two products. .

(c) Problems to be solved by the invention In the vending machine product dispensing device disclosed in the above-mentioned Japanese Utility Model Publication No. 62-14574, elasticity is provided on the lower surface of the substrate so as to create appropriate resistance to the movement of the operating member. However, if the product dispensing device is operated for a long period of time, the elastic force of the pressing portion will decrease and it will no longer be able to provide adequate resistance to the movement of the operating member. Furthermore, since a highly viscous lubricant is applied to the outer surface of the cylindrical cam, there is a possibility that the lubricant may adhere to the operating member and the movable body.

As described above, when there is little resistance to movement of the actuating member and the lubricant is present at the contact portion between the actuating member and the moving body, if the moving body is normal, the front regulating part or the rear regulating part of the operating member There is a problem in that when the actuating member and the movable body move in the direction away from the section, the actuating member and the movable body move together in the same direction, and the actuating member may cause the detection switch to malfunction.

In order to solve the above problem, the present invention prevents the malfunction of the detection switch by regulating the movement of the actuating member when the movable body moves between the regulating section and the rear regulating section. We will provide the equipment.

(d) Means for Solving the Problems The present invention was made to solve the above problems, and includes a product column that stores products stacked in two rows, front and back, on a board, and a front surface of the product column. An extrusion member that extrudes and sends out the product from output ports provided at the bottom and at the bottom of the rear surface, a cylindrical cam disposed under the substrate at the bottom of the extrusion member and having an endless spiral groove, and the extrusion member. a movable body that is connected and guided by the spiral groove and moves in the axial direction of the cylindrical cam; a drive device that rotates the cylindrical cam and moves the movable body; and a drive device that rotates the cylindrical cam to move the movable body; A product dispensing device for a vending machine comprising an actuating member that moves in the same direction as a movable body, and a detection switch that detects a predetermined movement position of the actuating member and controls driving of the drive device, wherein the actuating member a front regulation part and a rear regulation part which are vertically provided with a space between the front and rear of the board and which can be pressed by the movable body; an engagement part provided on the lower surface of the substrate; and an engagement part provided on the top of the actuating member. The above problem is solved by providing the engaging piece.

(E) Effect According to the product delivery device of the vending machine of the present invention,
When the movable body moves between the regulation part and the rear regulation part, the engagement piece engages with the engagement part and regulates the movement of the actuating member, so the front regulation part or the rear regulation part When the movable body moves in a direction away from the movable body, the movable body and the actuating member integrally move in the same direction with the movable body and the front regulation part or the rear regulation part attached to each other, and the detection is performed. Prevents the switch from malfunctioning.

(f) Embodiment Each figure shows an embodiment of the present invention, in which 1 is a product column provided on the board 3 of the product delivery device 2, in which the products A are stacked and stored in two rows, front and back.
At the lower ends of the front plate 1a and the rear plate 1b, outlet ports 4 through which only the lowest product A can pass are formed. The substrate 3 has an elongated guide groove 5 formed in the center of the upper surface in the front-rear direction. 6 is a cylindrical cam with an endless spiral groove 7 formed on its outer circumferential surface;
They are arranged below the guide groove 5 and along the guide groove 5, and both ends are rotatably supported on the front and rear walls of the substrate 3. This cylindrical cam 6 is rotatably driven by an electric motor 9 as a drive device via a speed reduction mechanism 8 provided on the outer surface of the rear wall of the substrate 3. Reference numeral 10 denotes a movable body that is provided by inserting the cylindrical cam 6 therethrough, and has a slider provided inside that engages with a spiral groove 7 of the cylindrical cam 6, and a guide groove 5 is inserted in the upper part of the movable body so that it can be moved over the substrate 3. A guide member 11 is provided that protrudes from the
The rotation of the cylindrical cam 6 causes it to reciprocate in the front and rear directions. Further, a push-out member 12 is removably attached to the guide member 11, and moves reciprocally over the substrate 3 with the reciprocating movement of the movable body 10.
The lowest product A stacked on top is pushed out from the delivery port 4 and sent out.

Reference numeral 13 denotes a guide shaft whose front and rear ends are supported by the front and rear walls of the base plate 3, and which is provided parallel to the cylindrical cam 6. The guide shaft 13 supports the actuating member 14 in a movable manner and also allows the movable body 10 to move freely. It is pivoted on. As shown in FIG. 5, the actuating member 14 is movably supported on the guide shaft 13 at the upper portions of a front regulating section 15 and a rear regulating section 16, which are vertically provided with a space between the front and rear. And at the bottom there is a front regulation part 15 and a rear regulation part 16.
A one-way movement control section 17 that connects the one-way movement control section 17 and a reciprocating movement control section 18 that is formed longer in front of the one-way movement control section 17 and arranged in parallel are provided. is provided with pressing portions 19a and 19b that elastically abut against the lower surface of the substrate 3, so that an appropriate resistance is generated to the movement of the actuating member 14. Then, as shown in FIG. 4, the actuating piece 20 formed to protrude on the side of the movable body 10 is positioned to protrude within the space between the front regulating part 15 and the rear regulating part 16, and is activated as the movable body 10 moves. The member 14 is moved. That is, the actuating member 1
4 is an actuating piece 20 when the movable body 10 moves backward.
When the movable body 10 moves forward, the actuating piece 20 comes into contact with the front regulating part 15 and is moved forward. Reference numeral 21 denotes a switch mounting member bent into a crank shape on the side surface of the board 3, and a detection switch 22 for detecting a predetermined movement position of the operating member 14 and stopping the electric motor 9 is attached to the operating member 14. It can be attached to either the one-way movement control section 17 or the reciprocating movement control section 18. That is, as shown in FIG. 6, by mounting the detection switch 22 with the screw 23 at the position indicated by the solid line, the operating rod 24 of the detection switch 22 is positioned corresponding to the reciprocating movement control section 18, and the two points When mounted in the position indicated by the chain line, the operating rod 24 protrudes from the opening 21a of the switch mounting member 21 and is positioned corresponding to the one-way movement control section 17. 25a and 25b are protrusions as engagement parts provided on the lower surface of the substrate 3, respectively, and engage with the pressing pieces 19a and 19b as engagement pieces, respectively;
The movement of the actuating member 14 is restricted. and the first
As shown in the figure, when the actuating member 14 is positioned at a predetermined standby position in front of the movable body 10,
The operating rod 24 of the detection switch 22 is configured so that it is not pressed and remains inactive even if it is mounted in a position corresponding to either the one-way movement control section 17 or the reciprocating movement control section 18. Further, as shown in FIG. 2, the detection switch 22
When the actuating member 14 is moved to the rearmost position by the movable body 10, the actuating rod 24 of the detection switch 22 is pressed by the front end of the reciprocating movement control section 18. The detection switch 22 continues to operate in the one-way movement control unit 1.
7, the operating rod 24 is disengaged from the front end of the one-way movement control section 18, and the pressing operation is released, as shown in FIG.

With this configuration, the operation of sending out two products during one sales operation will be explained first. Detection switch 2
2 is attached to the switch mounting member 21 in correspondence with the reciprocating movement control section 18 of the operating member 14. 1st
When a sales signal is sent to the electric motor 9 in the standby state shown in the figure, the cylindrical cam 6 is rotated via the deceleration mechanism 8, and the movable body 10 is moved rearward. Therefore, the pushing member 12 pushes the lowest product A in the rear row backward, and the actuating piece 20 of the movable body 10 comes into contact with the rear regulating part 16 of the actuating member 14 during the movement, causing the actuating member 14 to move backward. Move by pressing. Further, at this time, the pressing portion 19a overcomes the protrusion 25a.
This rearward movement of the actuating member 14 causes the reciprocating movement control section 18 to press the actuating rod 24 of the detection switch 22. When the moving body 10 reaches the rear end where the reciprocation ends, the lowest product A in the rear row is pushed out from the outlet 4 by the pushing member 12, as shown in FIG. Further, the pressing portion 19b rides over the protrusion 25b and is engaged with the protrusion 25b, thereby restricting movement of the actuating member 14 to the right in FIG. 2. At this time, since the operating rod 24 of the detection switch 22 continues to be pressed by the reciprocating movement control section 18, the electric motor 9 continues to be driven. Therefore, the moving body 10 has a spiral groove 7
starts the return movement, moves forward, and moves the moving object 1.
0 is separated from the rear restriction part 16 and moves toward the front restriction part 15. At this time, the actuating member 14 is
Since the protrusion 9b and the protrusion 25b are engaged with each other, movement is restricted and the protrusion 25b remains stationary. After this, moving body 1
During the return movement of 0, the actuating piece 20 of the movable body 10 comes into contact with the front regulating part 15, presses and moves the actuating member 14,
The pressing portion 19b overcomes the protrusion 25b. As the movable body 10 moves forward, the pushing member 12 pushes the lowest product A in the front row forward. When the movable body 10 and the actuating member 14 reach the standby position shown in FIG. The pressure on the operating rod 24 of the detection switch 22 by the control unit 18 is released. Therefore, the delivery of the sales signal is stopped and the electric motor 9 stops driving. In this way, the detection switch 22 is controlled by the reciprocating movement control section 18 of the actuating member 14.
When the electric motor 9, which is driven by the sales signal, is mounted on the switch mounting member 21 in a position corresponding to The detection switch 22 is operated to continue driving. When the movable body 10 moves back and forth once, the lowest order products A in the two rows of front and rear rows are sent out, respectively.

On the other hand, when sending out one product during one sales operation, the detection switch 22 is set so as to correspond to the one-way movement control section 17 of the actuating member 14.
The second operating rod 24 protrudes from the opening 21a,
It is attached to the switch mounting member 21 as shown by the two-dot chain line in FIG. In this case, the electric motor 9 is driven by the delivery of the sales signal, and the movable body 10 presses and moves the actuating member 14 whose movement has been restricted by the engagement of the pressing portion 19a and the protrusion 25a. When the item A arrives at the rear with the actuating member 14, the lowest product A in the rear row is sent out from the outlet 4 by the pushing member 12, and the actuating rod 24 of the detection switch 22 is moved as shown in FIG. The state in which the pressure of the actuating member 4 by the one-way movement control section 17 is released is reached. Therefore, the sales signal to the electric motor 9 is stopped, and the electric motor 9 stops and enters a standby state. That is, when the detection switch 22 is placed in a position corresponding to the one-way movement control section 17, the pressure on the operating rod 24 of the detection switch 22 by the actuating member 14 is released every time the moving body 10 moves one way, and the electric motor 9 is activated. The process is stopped and the lowest product A in one column is sent out.

(g) Effects of the invention According to the product delivery device of the vending machine of the invention,
When the movable body changes its traveling direction, the movable body and the actuating member move together in the same direction with the movable body and the actuating member attached, and the movement of the actuating member causes the detection switch to malfunction. Since this can be prevented, it is possible to provide a highly reliable product dispensing device for a vending machine.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of a product delivery device showing an embodiment of the present invention, Figs. 2 and 3 are side sectional views in different states, Fig. 4 is a partially sectional plan view, and Fig. 5 is an operating member. FIG. 6 is a perspective view showing the state in which the detection switch is installed. 6... Cylindrical cam, 9... Electric motor, 10...
Moving body, 14... Operating member, 19a, 19b...
Pressing part, 22...detection switch, 25a, 25b
...protrusion.

Claims (1)

[Scope of utility model registration request] A product column that stores products stacked in two rows in front and back on a substrate; an extrusion member that extrudes and delivers the products from delivery ports provided at the lower front and lower rear surfaces of the product column; and the extrusion member. a cylindrical cam disposed under a lower substrate and having an endless spiral groove; a movable body connected to the extrusion member and guided by the spiral groove to move in the axial direction of the cylindrical cam; and the cylinder. a drive device that rotates a cam to move the movable body; an actuation member that moves in the same direction as the movable body as the movable body moves; and a drive device that detects a predetermined movement position of the actuation member; a detection switch for controlling the drive of the base plate, the vending machine comprising: a front regulation part and a rear regulation part which are vertically disposed with a space in front and behind the operating member and which can be pressed by the movable body; It includes an engaging part provided on a lower surface and an engaging piece provided on an upper part of the actuating member, and when the movable body moves between the front regulating member and the rear regulating member, the engaging part is provided on the lower surface of the operating member. A product dispensing device for a vending machine, wherein the engaging piece engages with the joint portion to restrict movement of the operating member.