JPH04112295A - Door fixing device for automatic vending machine - Google Patents

Abstract

PURPOSE:To hold a door at a prescribed open angle only by an operation of opening the door by opening the door to a prescribed position, and automatically guiding the sliding pin of a connecting rod to the fixing part of a sliding groove in order to control the movement of the door. CONSTITUTION:A connecting part 61 is moved according as a door 2 is opened, a sliding pin 62 moves a guiding groove 51, and the sliding pin 62 is naturally guided to a fixing part 51b when it gets to a branching point. A connecting rod 6 whose sliding pin 62 is guided to the branching part 51b, is fixed at the position, and the door 2 is fixed at the open angle in a state in which the sliding pin 62 is moved to the fixing part 51b, that is, a prescribed half-opened state. When the sliding pin 62 is got back from the fixing part 51b to the straight line part of the guiding groove 51 by applying a power to the connecting rod 6, the door 2 is further rotated to an open direction and guided to a bending part 51a in an full-opened state, the connecting rod 6 is fixed at the position, and the door 2 is fixed in the full-opened state. Thus, the door can be fixed at the desired open angle by the simple operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a door fixing device for holding a door provided on the front side of a main body case at a predetermined opening angle in a vending machine.

[Conventional technology]

When replenishing products, it is sometimes necessary to open the front door of a vending machine at an appropriate angle and hold it there. As a door fixing device for fixing the door at such an appropriate opening angle, a connecting rod is provided, one end of which is rotatably fixed to the door, and the other end of which engages with a sliding groove provided on the main body case side. A method is known in which the other end of the connecting rod is pulled into a fixing part branching from the sliding groove when the door is fixed in the open state, and the other end is pushed back into the sliding groove when the door is released. It is being

[Problem to be solved by the invention]

By the way, with conventional door fixing devices, when fixing or releasing the door at the fixed position of the door, the connecting rod must always be guided by hand in the fixing direction or releasing direction, and the door fixing operation is difficult. was extremely troublesome.

An object of the present invention is to provide a door fixing device for a vending machine that can fix the door at a desired opening angle with an extremely simple operation.

[Means to solve the problem]

In order to achieve the above object, according to the present invention, in a door fixing device for a vending machine for fixing a door on the front side of a main body case in an open state at a predetermined angle, one end is rotatably supported by the door. A connecting rod having a sliding pin at the other end, a bending part at the tip and at least one fixed part branching in the same direction as the bending part in the middle, and a guide for slidingly guiding the sliding pin. It consists of a regulating plate in which a groove is formed and is fixedly installed on the front part of the main body case, and the sliding pin moves in the guide groove as the door is opened and closed, and is automatically guided to the fixed part only when the door is opened. The door shall be secured in its open position by being restrained.

[Effect]

When the door is opened to the fixed position, the sliding pin of the connecting rod is automatically guided to the fixed part of the sliding groove and its movement is regulated. Therefore, the door can be held at a predetermined opening angle by simply opening the door.

〔Example〕

An embodiment of the invention will be described based on FIGS. 1 to 3. This embodiment is for the case where the door is fixed in the half-open and fully open states. In the figure, 1 is the main body case of the vending machine and its bottom plate is shown, and 2 is a door provided on the front side of the main body case 1 and its lower part is shown. Reference numeral 3 denotes a support shaft that rotatably supports the door 2 on the main body case 1.

Reference numeral 4 denotes a door fixing device, which has a shallow box shape and is fixedly installed on the bottom plate of the main body case 1 via mounting portions at both left and right ends, and has a regulating plate 5 having a guide groove 51 running approximately parallel to the front surface of the main body case 1.
It forms a substantially Z-shape with both ends bent at a substantially right angle, and is rotatably supported by the door 2 via a connecting portion 61 at one end, and the other end is connected to the door 2.
A sliding pin 62 that slides along the guide groove 51 as it opens and closes.
It is constituted by a connecting rod 6 that forms a. The guide groove 51 has a bent portion 51a whose end on the side where the sliding pin 62 is located when the door 2 is opened is bent forward at an appropriate angle;
Further, in this case, one fixed portion 51b is formed which branches in the same direction as the bent portion 51a. Further, the sliding pin 62 has a flange-shaped tip 62a so that it does not slip out of the guide groove 51.

Note that 63 is a pin for holding the connecting portion 61 to the door 2. Further, the door fixing device 4 has a vertical distance A between the center of the support shaft 3 of the door 2, that is, the fulcrum of the door, and the rear end surface 51e of the guide groove 51, and the distance between the fulcrum of the door 2 and the connecting rod 6. When the distance between the center of the connecting portion 61, that is, the support point of the connecting rod 6 is B, the relationship is ASB.

The operation of the door fixing device 4 when the door 2 is opened and closed is shown in FIG.
This will be explained with reference to FIGS. 3(a) to 3(c).

FIG. 3(a) shows the state when the door 2 is closed. As the door 2 is opened, the connecting portion 61 moves along the locus of an arc C, and the sliding pin 62 moves in the guide groove 51 as shown by the arrow E, as shown in FIG. 3(b). Moreover, in this movement, the sliding pin 62 is initially pressed against the rear end surface 51e of the guide groove 51 due to the relationship of distance A≦distance B, and when it changes direction and moves from the end of the guide groove 51, it is guided. It moves by being pressed against the front and rear end surfaces 51f of the grooves 51.

Therefore, when reaching the branching point, the sliding pin 62 automatically moves to the fixed part 5.
I am led to 1b. The connecting rod 6 in which the sliding pin 62 is introduced into the branch portion 51b is restrained in that position because the branch portion 51b is tangential to the connecting rod 6. As a result, the door 2 is fixed at the opening angle with the sliding pin 62 moved to the fixed portion 51b, that is, the predetermined half-open state.

If the sliding pin 62 is returned from the fixed part 51b to the straight part of the guide groove 51 by applying force in the direction of arrow M to the connecting rod 6 with your foot or the like, the door 2 will further rotate in the opening direction, and the door 2 will slide along with it. As shown in FIG. 3(c), the movable pin 62 moves in the direction of arrow F while being pressed against the end surface 51f of the guide groove 51, and is now introduced into the bent portion 51a when the door 2 is fully open.

Then, the connecting rod 6 is restrained in that position by the same action as the branch portion 51b, and the door 2 is fixed in the fully open state.

When closing the door 2, a force in the direction of arrow N is applied to the connecting rod 6 to remove the sliding pin 62 from the bent portion 51a, thereby rotating the door 2 in the closing direction and removing the sliding pin. 6
2 moves in the guide groove 51 as shown by arrow G. Moreover, at this time, since the connecting portion 61 moves along the trajectory of the arc C in the opposite direction to that when it is released, a force in the direction of arrow P acts on the sliding pin 62, and the sliding pin 62 is always pressed against the end surface 51e. move while Therefore, the door 2 is closed at once without stopping at the half-open position.

FIGS. 4 and 5 show a modification of the above embodiment in which the door 2 does not need to be fixed in a half-open state when opened. Reference numeral 7 denotes a baffle plate that is detachably fixed to the bottom plate of the main body case 1, and its rear end surface closes the entrance of the fixed portion 51b of the guide groove 51.

In this modification, when the door 2 is opened, the sliding pin 62 that moves along the guide groove 51 in the direction of the arrow f is prevented from being blocked by the baffle plate 7 at the branching point of the fixed part 51b and guided to the fixed part 51b. Move to arrow F and proceed.

Therefore, the door 2 is fully opened at once and fixed in that state.

FIG. 6 shows an application example of the above modification, in which the sliding pin 62 moves close to the bottom plate of the main body case 1, and the baffle plate 7
is set at a height that allows the sliding pin 62 to pass above it.

In this applied example, by attaching the baffle plate 7, the door 2 can be opened and closed in the same manner as in the above modification. When you want to fix the door 2 in a half-open position, you can manually pull up the sliding pin 62 and guide the upper part of the baffle plate 7 to the fixing part 51b, thereby fixing the door 2 in the half-open position without removing the baffle plate 7. can.

〔Effect of the invention〕

According to the present invention, in a door fixing device for a vending machine for fixing a door on the front side of a main body case in an open state at a predetermined angle, one end is rotatably supported by the door and the other end has a sliding pin. a rod, a bent part at the tip and at least one fixed part branching in the same direction as the bent part in the middle, a guide groove for slidingly guiding the sliding pin is formed, and the front part of the main body case The sliding pin, which moves in the guide groove as the door is opened and closed, is automatically guided and restrained by the fixed part only when the door is opened, so that the door can be closed. Since the door 2 is fixed at the open position, the door 2 is automatically fixed at the predetermined half-open and full-open positions when opening, and is closed all at once when closing. That is, it is possible to provide a door fixing device that can be fixed or released at a desired opening angle with an extremely simple operation.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the door fixing position showing an embodiment of the present invention;
Figure 2 is a sectional view showing the sliding pin, Figures 3 (A) to 3 (C) are diagrams for explaining the operation of the door fixing device.
Figure 3 (a) is a plan view when the door is closed, Figure 3 (b) is a plan view when the door is half open, Figure 3 (c) is a plan view when the door is fully open, and Figure 4 is a door showing a modification of the above embodiment. A plan view of the fixed position, Figure 5 is V in Figure 4.
FIG. 6 is an enlarged sectional view taken along the line -V, and is a sectional view corresponding to FIG. 5, showing an application example of the above modification. 1... Main body case, 2... Door, 3... Support shaft (fulcrum), 4... Door fixing device, 5... Regulating plate, 6... Connecting rod, 7... Obstruction Plate, 51... Guide groove, 51a...
- Bent portion, 51b... Fixed portion, 51f... End face of guide groove, 61... Connection portion (support point), A, B... Distance. Figure Figure

Claims (1)

[Scope of Claims] 1) A door fixing device for a vending machine for fixing a door on the front side of a main body case in an open state at a predetermined angle, which has one end rotatably supported by the door and a sliding pin at the other end. a connecting rod having a bending part at its tip and at least one fixing part branching in the same direction as the bending part in the middle, a guide groove for slidingly guiding the sliding pin is formed, and the main body It consists of a regulating plate that is fixedly installed at the front of the case, and the sliding pin that moves in the guide groove as the door is opened and closed is automatically guided and restrained by the fixed part only when the door is opened. A door fixing device for a vending machine, characterized in that the door is fixed in its open position. 2) In the door fixing device according to claim 1, a regulating plate is installed so that the guide groove is approximately parallel to the front surface of the vending machine, and the vertical distance from the fulcrum of the door to the end surface on the opposite side of the branch of the guide groove is determined by the fulcrum of the door. 1. A door fixing device for a vending machine, characterized in that the distance is smaller than or equal to the distance from the support point of the connecting rod to the support point of the connecting rod. 3) In the door fixing device according to claim 1 or claim 2,
A door fixing device for a vending machine, characterized in that a baffle plate is removably provided in the guide groove to prevent a sliding pin from being introduced into the fixing part of the guide groove when the door is opened.