JPS6338753B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention provides product aisles for stacking and storing products, and a motor driven by an electric motor in the lower part between the product aisles to store products in the product aisles on both sides. The present invention relates to a vending machine equipped with a delivery device that controls delivery of products.

(b) Conventional technology As disclosed in Japanese Patent Application Laid-Open No. 57-137990, a device of this type has a motor-driven shaft with a
A disc-shaped carry-out member is provided that drops and carries out the product placed on the upper surface by rotation of the shaft, and the product is fixed to the shaft above the carry-out member and placed on the upper surface of the carry-out member. A structure is known in which a locking member is provided to move the product away from the shaft by rotation of the shaft and to lock the product directly above the product, and the products are stacked and stored on both sides of the shaft in the product storage section. However, in this case, since the lowest product is locked by a locking member with a small locking part that locks the product when it is on standby, the product is easily deformed by the load of the upper product, resulting in incorrect delivery or jamming. etc. may occur.

For this reason, Japanese Patent Application No. 111332 (1982)
As shown in Publication No. 3091), there is a delivery cam that is eccentrically provided at the bottom of the shaft, a control member that moves linearly forward and backward in the product aisle direction on both sides by the rotation of this cam, and an upper surface of this control member. One end is rotatably supported by the control member, and the other end extends into the product aisle to lock the lowest product, and the support can be released by movement of the control member. a main stopper that rotates the other end to the outside of the product aisle to send out the product falling; and an auxiliary device provided above the main stopper that locks the next product while the main stopper is sending out the lowest product. The stopper may be configured to include a stopper.

(C) Problems to be Solved by the Invention Since the delivery cam of this configuration has a perfectly circular outer periphery and is eccentrically supported, the delivery cam controls the delivery cam from within the product path. The retracting movement is performed rapidly from the start of rotation of the delivery cam. Therefore, the drop-feeding operation of the lowest product by the main stopper, which is controlled by the forward and backward movement of the control member, is performed at the initial stage of rotation of the feed-out cam, and the next product is sufficiently locked by the auxiliary stopper. There is a risk that the lowest-ranked product will be sent out before it is possible, and the next-ranked product will fall and be sent out.
In addition, since the control member advances and returns to the product path rapidly at the final stage of rotation of the delivery cam, the return of the main stopper is delayed, and the auxiliary stopper is activated before the main stopper completes its return. There are problems such as the possibility that the next product will be unlocked.

For this reason, the present invention allows the delivery cam to move the control member forward and backward into the product path, with the retraction movement being performed rapidly in the second half, and the advancing movement being performed rapidly in the first half, thereby ensuring reliable delivery of the product. The purpose of the present invention is to provide a product delivery device that can perform the following tasks.

(d) Means for Solving the Problems The present invention provides product aisles in which products are stacked and stored in parallel, and a motor driven by an electric motor in the lower part between the product aisles to control the delivery of the products in the product aisles on both sides. A vending machine equipped with a delivery device that includes a drive shaft that rotates 180 degrees by an electric motor, a delivery cam that is eccentrically supported at the center of one side of a substantially triangular shape at the bottom of the drive shaft, and A control member provided to be able to move forward and backward in the direction of the product passage on both sides by rotation of the delivery cam, and a control member that is pivotally supported corresponding to the control member and extends and retreats into the product passage by moving forward and backward of the control member. a main stopper that controls the delivery of the lowest-ranked product by controlling the main stopper, and a main stopper that is operated by rotation of a locking cam provided on the drive shaft provided above the main stopper to send out the lowest-ranked product by the main stopper. It is equipped with an auxiliary stopper that locks the next product during operation, and the delivery cam has one corner, which is a triangular tip protruding from the drive shaft side, located midway between the product aisles on both sides during standby. be.

(E) Effect With this configuration, when the electric motor drives the delivery cam, the control member is gently retracted until one corner of the tip rotates approximately 45 degrees until it presses the control member, and then the control member is rotated approximately 45 degrees. Rotation causes the control member to be rapidly retracted. And when rotated further by approximately 45 degrees,
One corner on the drive shaft side rapidly advances and returns the control member, and then rotates further to complete the 180 degree rotation. As a result, the main stopper delays the product delivery timing by releasing the product from locking, and allows the product to return to the lockable position at an early stage.

(f) Examples Examples of the present invention will be described below with reference to the drawings.
Reference numeral 1 denotes a product storage column having a U-shaped cross section and having an opening 2 for filling products in the front and a product delivery port 3 at the lower end, and is installed vertically within the main body of the vending machine. A base material 4 is fixed to the lower end of the column 1 in the front-rear direction so as to divide the column 1 into left and right halves. Reference numeral 5 denotes a drive shaft whose upper part is connected to an electric motor 6 as a drive device provided on the upper wall 1a of the column 1, and whose lower part is attached through the base material 4. It is configured to rotate, and product passages 7 and 7' are formed on both sides of the drive shaft 5, respectively, for stacking and storing products in a line. A delivery cam 8 is pivotally supported at the lower part of the drive shaft 5. The delivery cam 8 has three drive parts 8a, 8b, and 8c at its outer peripheral end, and has a substantially equilateral triangular shape. It is eccentrically supported by the shaft. Reference numeral 9 denotes a control member having an elongated hole 9a extending in the left-right direction at the center of the upper surface and into which the drive shaft 5 is inserted, and control portions 9b and 9c formed on the left and right sides, respectively. A cam 8 is placed between the controllers 9b and 9c, and is movable in the left-right direction by rotation of the cam 8. 10 and 11 have one end rotatably supported on both sides of the lower part of the base material 4, and the other end is connected to the product passage 7,
The control member 9 is a main stopper in the form of a flat plate that can move freely into and out of the interior of the control member 7' to place and lock the lowest product.
The control member 9 is provided so that the lower surface can be placed and supported on top.
When placed and supported by the product passages 7, 7', it extends substantially horizontally into the product passages 7, 7' to close the product passages 7, 7'.
Further, when the control member 9 releases the placement support, the product is suspended to open the product passages 7, 7'. Furthermore, a pair of guide parts 10a, 1 are provided on the lower surfaces of the main stoppers 10, 11 in parallel to abut against the front and rear ends of the control member 9 and guide the movement of the control member 9 in the left-right direction.
1a are provided respectively. That is, the control member 9 has a cam 8 disposed between the control parts 9b and 9c, and can freely move forward and backward in the directions of the product passages 7 and 7' on both sides by rotation of the cam 8 based on the drive of the electric motor 6. The lower surfaces of the main stoppers 10, 11, whose one ends are pivotally supported in correspondence with the upper surface of the control member 9, can be placed and supported, and guide portions 10a, 11a provided on the lower surfaces of the main stoppers 10, 11 provide support on both sides. The forward and backward movements of the product aisles 7 and 7' are guided. When the drive section 8a of the cam 8 is on standby for sales delivery, with the drive section 8a projecting forward or backward of the drive shaft 5, the drive sections 8b and 8c of the cam 8 move the control member 9 to the lower part of the main stoppers 10 and 11 on both sides. The main stoppers 10 and 11 are extended and supported by the control member 9 so as to extend substantially horizontally into the product passages 7 and 7', respectively, and the driving portion 8a of the cam 8 is inserted into the product passage 7, for example. When the control member 9 moves to the product aisle 7 side by a predetermined amount, the control member 9 extends and supports the main stopper 10 on the product aisle 7 side substantially horizontally into the product aisle 7, and also supports the main stopper 10 on the product aisle 7 side. The main stopper 11 is retracted from the lower part of the main stopper 11 on the side 7' to release the support for extending the main stopper 11 into the product passage 7'. Reference numeral 12 has one end so as to bias the main stoppers 10, 11 upwardly with an elastic force that overcomes the load of one product to be sold and sent out when the main stoppers 10, 11 are mounted and supported by the control member 9. is a sold-out detection spring that is locked to the main stoppers 10, 11 and the other end is held in contact with the control member 9. The elasticity of the spring 12 causes the main stoppers 10, 1
1 is rotated a predetermined amount upward from the horizontal position supported by the control member 9, the main stopper 10,1
1, the sold-out detection switches 13 and 13' are operated. Further, both sold-out detection switches 13, 13' are connected in parallel, so that when both main stoppers 10, 11 operate both sold-out detection switches 13, 13' at the same time, the product is sold out. It is composed of 14 is a delivery spring having stronger elasticity than the sold-out detection spring 12, which has one end locked to the main stoppers 10 and 11 and the other end 14a inserted into the elongated hole 9a of the control member 9;
Under normal conditions, the end portion 14a is kept free within the elongated hole 9a to prevent elasticity from occurring, and when the control member 9 is retracted and the main stoppers 10, 11 are released from support, the end portion 14a is moved to the end of the elongated hole 9a. is latched to the
In addition, when the upper surface of the control member 9 is locked, elasticity is generated, and the main stoppers 10, 11, which are released from the support and are hanging down, are strongly pushed into the product passageway against the elasticity of the sold-out detection spring 12. 7, 7' are configured to rotate outward. 15 and 16 have upper ends rotatably supported, and locking portions 17 at the lower ends are connected to the product passage 7,
Auxiliary stoppers that can be retracted and retracted into the main stoppers 10, 11 are provided on both sides of the upper part of the base material 4 so as to be able to lock the product next to the lowest product placed and locked on the main stoppers 10 and 11, The locking portion 17 is controlled to move in and out of the product passages 7, 7' by a driving portion 18a of a locking cam 18 provided on the drive shaft 5 in correspondence with the auxiliary stoppers 15, 16. The locking cam 18 is rotated by the rotation of the drive shaft 5 driven by the electric motor 6, and presses the auxiliary stoppers 15, 16 to lock the locking portion 17 prior to the start of the feeding operation of the main stoppers 10, 11. It is made to project into the product passages 7, 7'.

Next, the operation of the above configuration will be explained. The delivery cam 8 is positioned with the drive portion 8a protruding forward, and the control member 9 supports main stoppers 10 and 11 on both sides, respectively, and extends substantially horizontally into the product passages 7 and 7'. Products A are stacked and stored on each main stopper 10,11. Also, the locking cam 18
The driving part 18a is connected to the auxiliary stoppers 15, 16 on both sides.
The locking portions 17 of each auxiliary stopper 15, 16 are located outside the product passages 7, 7'. This state is a sales delivery standby state and is shown in FIGS. 6 and 7.

When a predetermined amount of money is inserted and a predetermined operation related to sales is performed during this sales delivery standby state, a sales delivery command is sent to the electric motor 6, and the electric motor 6 moves the drive shaft 5 in the direction of the arrow in FIG. It will rotate 180 degrees and stop. By this rotation of the drive shaft 5, the driving portion 18a of the locking cam 18 is first moved to the main stopper 11 on the product delivery side by the delivery cam 8.
Prior to the support release operation, the auxiliary stopper 16 is pressed to cause the locking portion 17 to protrude into the product passage 7', thereby pressing and locking the product _A3 . On the other hand, the rotation of the drive shaft 5 also rotates the delivery cam 8, and as the delivery cam 8 rotates, the delivery cam 8 presses the control portion 9c of the control member 9.
A transition is made from the drive section 8c to the drive section 8a. Therefore, due to the shape of the delivery cam 8, the control member 9 controls the movement of the delivery cam 8 in the direction of the arrow in FIG.
The movement is small at the beginning of the rotation of the drive unit 8a, and is moved largely as the drive unit 8a approaches the middle stage of rotation by 90 degrees. When the end of the control member 9 reaches the vicinity of the shaft support of the main stopper 11, the end 14a of the delivery spring 14 is locked to the end of the elongated hole 9a of the control member 9, producing elasticity. The end is the main stopper 11
When the support is released, the elasticity of the spring 14 and the product A ₁
The main stopper 11 is suddenly rotated downward under the load of , and the product A ₁ is sent falling downward. This state is shown in FIGS. 8 and 9.

Then, when the drive shaft 5 further rotates, the control member 9, which has been placed and supported by largely protruding to the lower surface of the main stopper 10, is activated by the drive portion 8c of the delivery cam 8 to release the locking of the product A ₃ by the auxiliary stopper 16. 8, and rapidly returns in the direction of the arrow in FIG.
Therefore, the main stopper 11 is pressed into the product passage 7' by the control member 9, and as the control member 9 moves, it extends into the product passage 7' and is supported. At the beginning of the return movement of the control member 9, the sending spring 1
4 is released from the locked state of the end portion 14a with the end of the elongated hole 9a, becomes free within the elongated hole 9a, and loses its elasticity. The main stopper 11 mounted and supported on the control member 9 is rotated upward from the horizontal position due to the elasticity of the sold-out detection spring 12, but when the drive shaft 5 rotates to this state, the locking cam 18 is driven. Part 1
8a releases the pressure on the auxiliary stopper 16, the locking portion 17 of the auxiliary stopper 16 rotates outward in the product passage 7' and releases the locking of the product _A3 . Therefore, the unlocked product A ₃ falls onto the main stopper 11 under its own weight, and the main stopper 11 is rotated against the elasticity of the spring 12 to a position where it is horizontally supported by the control member 9. It is locked. And the drive shaft 5
After completing the 180 degree rotation, the electric motor 6 stops, and the control member 9 is placed and supported by the delivery cam 8 in an equally extended position on the lower surface of the main stoppers 10 and 11 on both sides. The first sales sending operation is completed and the machine enters a standby state. This state is shown in Figures 10 and 11.
As shown in the figure.

When the next sales delivery command is sent to the electric motor 6, the delivery cam 8 moves the control member 9 in the direction of the arrow in FIG. By doing so, product _A2 is sent out and sold. That is, each time a sales delivery command is issued, the drive shaft 5 rotates 180 degrees to perform one sales delivery operation, and the products in the product aisles 7 and 7' on both sides are delivered and sold alternately.

(G) Effects of the Invention Since the present invention has the above-described configuration, even when a product that is easily deformed such as a beverage product in a paper container is stored and locked, the deformation of the lowest product due to the product load is small, and the quality of the product is improved. No deterioration occurs. In addition, the forward and backward movement of the control member is controlled by a feeding cam formed in a substantially triangular shape, allowing the main stopper to slowly release the product from locking, and the main stopper to return quickly after the product has been delivered. , it is possible to send out products reliably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a partially sectional front view of the product delivery device, FIG. 2 is a sectional view taken along line B-B' in FIG. 1, and FIG. FIG. 4 is a sectional view of the relationship between the main stopper and the control member; FIG. 5 is a sectional view showing other states in FIG. 4; FIGS. 6 and 7 are on standby for sales delivery. A schematic front view and a schematic plan view in the state, FIGS. 8 and 9 are a schematic front view and a schematic plan view in the delivery operation, and FIGS. 10 and 11 are schematic front views in other sales delivery standby states. and a schematic plan view. 5... Drive shaft, 6... Electric motor, 7, 7'...
...Product path, 8... Delivery cam, 9... Control member, 10, 11... Main stopper, 15, 16...
Auxiliary stopper, 18...locking cam.

Claims (1)

[Claims] 1. In a vending machine in which product aisles for stacking and storing products are arranged side by side, and a delivery device is installed at the bottom between the product aisles and driven by an electric motor to control the delivery of products in the product aisles on both sides, A drive shaft that rotates at a predetermined rate, a delivery cam that is eccentrically provided with the central part of one side of a substantially triangular shape being pivotally supported at the bottom of the drive shaft, and the rotation of the delivery cam to move the product in the direction of the product passage on both sides. A control member that is movable forward and backward;
a main stopper which is pivotally supported in correspondence with the control member and whose extension and retraction into the product aisle is controlled by the forward and backward movement of the control member to control delivery of the lowest product; and an auxiliary stopper that is operated by the rotation of a locking cam provided on the drive shaft and locks the next product while the main stopper is feeding out the lowest product, and the feed-out cam is attached to the drive shaft during standby. A product delivery device for a vending machine in which one corner, which is a triangular tip protruding from the side, is located midway between product aisles on both sides.