JP4448017B2 - vending machine - Google Patents

Description

  The present invention relates to a vending machine having an inner door on the back side of the outer door, and more specifically, the outer door and the inner door can be connected at a position before the position where the outer door and the inner door are completely locked. Related to vending machines.

  FIG. 14 is a cross-sectional view of a conventional vending machine. The main body 51 is formed as a box-shaped heat-insulating housing whose front surface is open. Inside the main body 51, a product storage 54 is provided for storing products such as canned beverages while maintaining a desired temperature.

  An outer door 52 is rotatably attached to the left side edge of the main body 51 via a hinge H1. The outer door 52 opens and closes the front opening of the main body 51. An inner door 53 is rotatably attached to the back side of the outer door 52 via a hinge H2. The inner door 53 is a heat insulating door, and when the outer door 52 is closed with respect to the main body 51, the inner door 53 closes the front opening of the main body 51 and blocks the product storage 54 from the outside air to store the product. The outflow of cold air or warm air in the storage 54 is prevented.

  Engaging the locking piece 55 provided on the side edge of the inner door 53 on the opposite side of the hinge H2 and the locking member 56 provided on the side edge of the outer door 52 on the opposite side of the hinge H1. Thus, the outer door 52 and the inner door 53 are engaged with each other.

  Such a vending machine has the following problems when the inner door 53 and the outer door 52 are incompletely engaged and the outer door 52 is opened with respect to the main body 51 without being connected. For example, when the outer door 52 is opened again before the outer door 52 is completely closed, the engagement between the locking piece 55 and the locking member 56 is incomplete and the outer door 52 and the inner door 53 are connected. If the outer door 52 is opened in this state, the hinge H2 of the inner door 53 with respect to the outer door 52 is inward of the hinge H1 of the outer door 52 with respect to the main body 51. The rotation track of the inner door 53 bulges outward from the rotation track of the outer door 52, and the side end portion 53a of the inner door 53 hits the inner wall portion 51a of the front opening of the main body 51 as shown in FIG. End up. In such a state, it is difficult to open the outer door 52, and if the outer door 52 is forcibly opened, the hinge H2 may be damaged.

Therefore, in Patent Document 1, as shown in FIG. 15, a locking member 64 that swings in the lateral direction with a screw 67 as a fulcrum is provided at the side end 63 a of the inner door 63, and on the back side of the outer door 62. Two openings 66a and 66b with which the hook portion 64a of the locking member 64 can be engaged are provided.
Japanese Patent Publication No. 8-7823

  When the outer door 62 and the inner door 63 approach each other, the hook portion 64a is guided by abutting against a guide surface 65a provided on the rear side of the opening 66a, and resists the urging force of the spring member 68 to the right in the figure. When the locking member 64 swings and the hook portion 64a reaches the opening 66a, the hook portion 64a engages with the opening 66a by the biasing force of the spring member 68. Further, when the outer door 62 and the inner door 63 approach each other, the hook portion 64a comes into contact with the guide surface 65b provided on the rear side of the opening portion 66b and is guided to be separated from the opening portion 66a. The portion 64a engages with the opening 66b. The state in which the hook portion 64 a engages with the opening 66 b is a complete locked state between the outer door 62 and the inner door 63.

  In Patent Document 1 configured as described above, even if the outer door 62 is not completely closed with respect to the inner door 63, the hook portion 64a is engaged with the opening 66a before the outer door 62 is completely closed. Thus, the outer door 62 and the inner door 63 can be connected. Therefore, even if the outer door 62 is opened before the outer door 62 is completely closed with respect to the inner door 63, the inner door 63 is pulled by the outer door 62 due to the engagement between the hook portion 64a and the opening 66a. It can be opened together with the door 62, and the inner door as shown in FIG. 14B can be prevented from being caught by the inner wall portion of the front opening of the main body.

  However, in Patent Document 1, the locking member 64 is attached to the side end portion 63a of the inner door 63 with a screw 67 and swings laterally around the screw 67 as a fulcrum, and the locking member 64 is further opened. Since the spring member 68 is provided at the side end portion 63a of the inner door 63 in order to bias the engagement position with the portions 66a and 66b and maintain the engaged state, the side end portion 63a of the inner door 63 and The space between the side wall 63a and the inner wall 61a of the front opening of the main body 61 facing the side 63a is narrowed.

  The fact that the side end 53a of the inner door 53 as shown in FIG. 14B interferes with the inner side wall 51a of the front opening of the main body 51 can be understood by opening the outer door 52 to some extent and checking it visually. A person who is looking to open the outer door 52 can stop the opening operation of the outer door 52. Here, as in Patent Document 1, the locking member 64 and the spring member 68 are disposed between the inner door side end portion 63a and the inner wall portion 61a of the main body front opening, and these and the main body inner wall portion 61a. If there is not much space between the outer door 62 and the outer door 62, the outer door 62 pulls the inner door 63 via the locking member 64 before the spring member 68, the locking member 64, and the inner door side end. 63a and the like interfere with the main body inner wall portion 61a. Further, at this time, since the outer door 62 is not yet opened, the state of the interference is not visible to the person who is trying to open the outer door 62, that is, the above-mentioned interference is not noticed. There is a high risk of opening the door and damaging the hinge between the outer door 62 and the inner door 63. In order to avoid this, if the space between the inner door side end portion 63a and the main body inner side wall portion 61a is secured wide, the width dimension of the vending machine is increased.

  The present invention has been made in view of the above-described problems, and an object thereof is a member for locking the inner door and the outer door between the side end portion of the inner door and the inner wall portion of the main body front opening. It is an object of the present invention to provide a vending machine that enables the outer door and the inner door to be connected to each other before the complete lock position.

The vending machine of the present invention has a main body formed with an opening facing the product storage on the front surface, an outer door that is pivotally attached to the side edge of the main body via a first hinge and opens and closes the front surface, An inner door pivotally attached to a side edge portion on the same side as the first hinge on the back surface of the outer door via a second hinge, and a side edge on the opposite side of the second hinge on the back surface of the outer door And a locking member having a projecting portion that is provided so as to be movable in the vertical direction at one of the side edge portions of the front surface of the inner door that faces the side edge portion, and protrudes toward the other side. An opening provided and engageable with a locking member,
A first inclined portion, a first hook portion, a second inclined portion, and a second hook portion are formed in order from the distal end side of the protruding portion of the locking member, and the outer door and the inner door approach each other. The locking member moves upward due to the contact between the lower edge of the opening and the first inclined portion during operation, and when the contact between the lower edge and the first inclined portion is released, the locking member moves downward. As the first hook part engages with the lower edge part, and the further outer door and the inner door approach, the lower edge part and the second inclined part come into contact, and the locking member moves upward, When the contact between the lower edge portion and the second inclined portion is released, the locking member is lowered downward, and the second hook portion is engaged with the lower edge portion.

  The state in which the second hook portion of the locking member is engaged with the opening is a so-called locked state in which the outer door and the inner door are completely locked. In the present invention, the outer door is connected to the inner door. When closed, before the locked state is reached, the outer door and the inner door are connected with the first hook portion engaged with the opening portion first guided by the first inclined portion. Is done. Therefore, even if the outer door is not completely closed with respect to the inner door and the two are not completely locked, they are connected if the first hook portion approaches the position where the first hook portion engages with the opening. Even if the outer door is opened in an incompletely locked state, the inner door is opened together with the outer door so as to be pulled by the outer door. As a result, the side end portion of the inner door can be prevented from moving and colliding with the inner wall portion of the front opening of the main body.

  And in this invention, unlike the rocking | fluctuation of the horizontal direction of patent document 1, the said locking member moves to an up-down direction (height direction), and takes an engagement position and an engagement release position. Therefore, it is not necessary to provide the locking member so as to protrude from the inner door side end portion to the inner wall portion side of the main body front opening. Furthermore, the state in which the first hook portion and the second hook portion are engaged with the opening portion is held by the locking member being lowered by its own weight, so that the inner door side end portion and the inner side wall portion of the main body front opening There is no need to provide a spring member as in Patent Document 1. Therefore, the space between the inner door side end and the inner side wall portion of the main body front opening is not narrowed, and the inner door side end portion interferes with the inner side wall portion of the main body front opening before the outer door pulls the inner door. There is no end to it.

  Also, for positioning that protrudes toward the other side of the rear edge of the outer door on the opposite side of the second hinge and the side edge of the front surface of the inner door facing this side edge. If a protrusion is provided and a positioning opening is provided on the other side, the positioning protrusion and the positioning opening are brought into contact with each other, so that the relative position between the outer door and the inner door can be determined by the lower edge of the opening. And the first inclined portion of the locking member can be positioned so as to contact each other, and the lower edge portion of the opening portion is reliably guided to the engagement position with the first hook portion by the guide of the first inclined portion. Can do.

  According to the vending machine of the present invention, when the opening operation of the outer door is performed from a state where the inner door and the outer door are not completely locked, the inner door side end portion is on the inner wall portion of the main body front opening. Before the interference, the outer door can reliably pull the inner door and open the inner door together with the outer door from the main body. Thereby, damage to the inner door or the hinge interposed between the inner door and the outer door can be prevented.

  Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings. In addition, this invention is not limited to the following embodiment, A various deformation | transformation is possible based on the technical idea of this invention.

  FIG. 1 shows a vending machine according to an embodiment of the present invention. The state shown in FIG. 1 shows a state in which the outer door 2 and the inner doors 3 and 4 are opened with respect to the main body 1.

  The main body 1 has a box shape with an open front surface, and a product storage 5 is formed therein. In the commodity storage 5, a plurality of commodity columns 6 extending in the height direction are provided side by side in the width direction of the main body 1. A product inlet 7 facing the front opening of the main body 1 is formed in the upper part of each product column 6, and products such as can drinks introduced from the product inlet 7 are stacked in the height direction of each product column 6. Stored.

  The product paid out from the product column 6 passes through a chute 8 provided below the product column 6 and an opening 9 formed in the lower part of the inner door 4 and is carried out to a product take-out unit 10 provided in the lower part of the outer door 2. Is done.

  The outer door 2 is attached to a side edge portion (left side edge portion in FIG. 1) on the front surface of the main body 1 via a first hinge h1 (see FIG. 13), and rotates around the hinge h1 as a main body. Open and close the front opening of 1.

  On the back side of the outer door 2, inner doors 3 and 4 that are provided with a heat insulating material are provided. In a state where the outer door 2 is closed with respect to the main body 1, the inner doors 3 and 4 close the front opening of the main body 1 to shut off the product storage 5 from the outside air, and cool or warm air from the product storage 5 Block outflow.

  Of the inner doors 3 and 4, the lower inner door 4 is rotated with respect to the main body 1 via a hinge attached to the same side edge as the side edge of the main body 1 to which the first hinge h <b> 1 is attached. It is attached movably. On the other hand, the upper inner door 3 is attached not to the main body 1 but to the back surface of the outer door 2. Specifically, as shown in FIG. 13, it is rotatably attached to the back surface of the outer door 2 via a second hinge h2 located immediately inward of the first hinge h1. The inner door 3 opens and closes a product inlet 7 located at the top of the product storage 5.

  When the outer door 2 is closed with respect to the main body 1, the inner door 3 is locked to the outer door 2 at the side edge opposite to the second hinge h <b> 2. That is, the inner door 3 is also opened in conjunction with the opening operation of the outer door 2, and the product can be replenished via the product insertion port 7 immediately after opening the outer door 2 when the product is replenished. At this time, the lower inner door 4 closes the lower side of the commodity storage 5 without interlocking with the opening operation of the outer door 2. In other words, the entire product storage 5 is prevented from being exposed to the outside air when the product is replenished, and only the product input port 7 necessary for the product replenishment is opened.

  As shown in FIG. 2, the side edge 3a opposite to the side edge where the hinge h2 is attached on the front surface of the upper inner door 3 (the surface facing the back surface of the outer door 2) is locked to the side edge 3a. The member 11 is attached in combination with the guide member 12.

  3 is a front view of the locking member 11, and FIG. 4 is a right side view of FIG. The locking member 11 includes a substantially rectangular back plate portion 21, a hook forming portion 22 that is bent at a substantially right angle at a lower portion of the left side edge portion of the back plate portion 21 and extends to the front side of the back plate portion 21, and a back plate. An engagement release piece 24 bent at a substantially right angle from the upper end edge of the portion 21 to the front side of the back plate portion 21, and protruding rightward from the right edge portion of the back plate portion 21. The two projecting portions 23a and 23b are integrally formed. Further, in the back plate portion 21, a long hole 25 is formed along the longitudinal direction at a portion between the protruding portion 23a and the protruding portion 23b. The locking member 11 is made of a metal material.

  A first inclined portion 26, a first hook portion 28, a second inclined portion 27, and a second hook portion 29 are formed in that order from the tip side at the lower portion of the hook forming portion 22. The first inclined portion 26 is inclined downward from the front edge of the hook forming portion 22 toward the back plate portion 21, and a first hook portion 28 is formed following the first inclined portion 26. The first hook portion 28 is connected to the first lower edge portion 30 of the hook forming portion 22 so as to form a right angle.

  A second inclined portion 27 is provided following the rear end of the first lower edge portion 30. The second inclined portion 27 is inclined downward from the rear end of the first lower edge portion 30 toward the back plate portion 21, and a second hook portion 29 is formed following the second inclined portion 27. The second hook portion 29 is connected to the second lower edge portion 31 of the hook forming portion 22 so as to form a right angle.

  One end portion (right end portion in FIG. 3) of the disengaging piece portion 24 protrudes from the right edge portion of the back plate portion 21.

  5 is a front view of the guide member 12, FIG. 6 is a left side view in FIG. 5, and FIG. 7 is a right side view in FIG. The guide member 12 includes a rectangular back plate portion 34, a left side wall portion 35 bent at a substantially right angle from a left side edge portion of the back plate portion 34 toward the front side of the back plate portion 34, and a right side edge of the back plate portion 34. A right side wall portion 36 that is bent at a substantially right angle from the front portion to the front side of the back plate portion 34, and a hook piece portion 37 that is bent at a substantially right angle from the upper edge of the back plate portion 34 to the rear side of the back plate portion 34, Are integrally formed. A round hole 38 is formed near the center of the back plate portion 34. The guide member 12 is made of a metal material.

  A positioning protrusion 39 is formed on the upper portion of the left side wall 35 so as to protrude to the front side of the back plate 34. An inclined portion 40 that is inclined downward toward the back plate portion 34 side is formed at a boundary portion between the front edge portion and the lower edge portion of the positioning protrusion 39. A rectangular slit 41 is formed in the vicinity of the boundary between the left side wall portion 35 and the back plate portion 34. The slit 41 is formed along the longitudinal direction in the lower half of the left side wall portion 35 in the longitudinal direction.

  Two rectangular slits 442 a and 42 b are formed in the vicinity of the boundary between the right side wall portion 36 and the back plate portion 34. The slit 42a is formed along the longitudinal direction in a portion about one third from the top of the right side wall portion 36 in the longitudinal direction. The slit 42b is formed along the longitudinal direction in a portion about one third from the bottom of the right side wall 36 in the longitudinal direction.

  The locking member 11 and the guide member 12 are combined with each other as shown in FIG. First, the hooking piece portion 37 (see FIGS. 6 and 7) of the guide member 12 is opposite to the side edge portion to which the hinge h2 is attached on the front surface of the inner door 3 (the surface facing the rear surface of the outer door 2). Is inserted into a slit (not shown) formed in the side edge 3a. Accordingly, the guide member 12 is positioned on the side edge 3a of the inner door 3 so as to be hung. The positioning protrusion 39 of the guide member 12 protrudes toward the back side of the outer door 2, and the slit 41 formed in the left wall 35 is positioned below the protrusion.

  With the guide member 12 positioned as described above, the hook forming portion 22 of the locking member 11 is inserted into the slit 41 from the inner surface side of the left side wall portion 35 of the guide member 12 and the outer surface side of the left side wall portion 35. Is projected in the same direction as the positioning projection 39. Further, the protrusions 23a and 23b provided on the right edge of the locking member 11 are inserted into the slits 42a and 42b formed in the right wall 36 of the guide member 12, respectively, and the protrusions 23a and 23b The tip side protrudes to the outer surface side of the right side wall portion 36. The back surface of the back plate portion 21 of the locking member 11 is superimposed on the front surface of the back plate portion 34 of the guide member 11.

  In this state, the screw 13 passes through the round hole 38 (see FIG. 5) of the back plate portion 34 of the guide member 12 exposed from the long hole 25 formed in the back plate portion 21 of the locking member 11. Are screwed onto the side edge 3a. The screw 13 is a stepped screw, and a cylindrical intermediate portion having a diameter larger than that of the shaft portion and smaller than that of the head portion 13a between the shaft portion screwed to the inner door side edge portion 3a and the head portion 13a. Is formed. The intermediate part enters into the long hole 25, and the back surface thereof is in contact with the peripheral part of the round hole 38.

  The guide member 12 has a hooking piece 37 inserted into the slit of the inner door side edge 3a, and the shaft 13 of the screw 13 passes through the round hole 38 of the back plate 34 and the inner door side edge 3a. Since it is screwed to the inner door side edge 3a, it does not move.

  The locking member 11 is slidable in the vertical direction (height direction) of the inner door 3 with respect to the guide member 12. The sliding guide is made by contact between the long hole 25 along the vertical direction and the intermediate portion of the screw 13 entering the long hole 25.

  The locking member 11 is prevented from falling by the upper edge portion of the inner wall surface of the elongated hole 25 being caught by the intermediate portion of the screw 13. The length in the height direction (the length in the vertical direction) of the portion of the hook forming portion 22 that enters the slit 41 is smaller than the length of the slit 41. Then, the upward movement of the locking member 11 is restricted when the upper edge of the hook 41 comes into contact with the upper edge of the slit 41.

  As shown in FIG. 8, a metal member 45 having two rectangular openings 46 and 47 formed on the side edge 2a facing the inner door side edge 3a on the back surface of the outer door 2 is provided. It is attached. The opening 46 is formed at a position where the positioning protrusion 39 can be inserted, and the opening 47 located below the opening 46 is formed at a position where the hook forming section 22 can be inserted.

  In the vending machine according to the present embodiment configured as described above, the locking action between the outer door 2 and the inner door 3 will be described.

  When the outer door 2 and the inner door 3 are opened around the second hinge h2 and are not locked to each other (FIG. 8), as shown in FIG. The tip of the hook forming part 22 enters the opening 47 and the first inclined part 26 formed on the hook forming part 22 contacts the lower edge of the opening 47.

  When the outer door 2 and the inner door 3 further approach with the first inclined portion 26 in contact with the lower edge of the opening 47, the first inclined portion 26 receives from the lower edge of the opening 47. While the locking member 11 moves upward due to the upward force, the contact position of the first inclined portion 26 with respect to the lower edge portion of the opening 47 shifts toward the first hook portion 28. As a result, the insertion depth of the hook forming portion 22 into the opening 47 is increased, and the outer door 2 and the inner door 3 are closer to each other.

  At this time, when the vertical displacement between the outer door 2 and the inner door 3 due to the looseness of the outer door 2 to the main body 1 or the looseness of the inner door 3 to the outer door 2 occurs. The first inclined portion 26 may not come into contact with the lower edge portion of the opening 47. If the portion above the first inclined portion 26 hits the lower edge of the opening 47 on the distal end side of the hook forming portion 22, the force for moving the locking member 11 upward does not act, and the hook forming portion 22. Will change between the outer door 2 and the inner door 3, thereby hindering the closing operation of the outer door 2 and the inner door 3.

  However, in this embodiment, even if the above-described vertical displacement occurs between the outer door 2 and the inner door 3, the tip of the hook forming portion 22 and the lower edge portion of the opening 47 are not affected. Prior to the contact, the inclined portion 40 of the positioning protrusion 39 contacts the lower edge of the positioning opening 46, so that the relative position of the outer door 2 with respect to the inner door 3 can be lowered downward. The lower edge portion of the opening 47 is positioned at a position where the lower edge portion of the opening 47 abuts on the first inclined portion 26 with certainty. Further, the lower edge portion of the positioning protrusion 39 abuts against the lower edge portion of the positioning opening 46, so that the relative downward displacement of the inner door 3 with respect to the outer door 2 is restricted.

  When the contact of the first inclined portion 26 with the lower edge of the opening 47 is released due to the further approach between the outer door 2 and the inner door 3, the locking member 11 falls downward due to its own weight, as shown in FIGS. Thus, the first hook portion 28 enters the opening 47 and engages with the lower edge of the opening 47. In this state, even if the outer door 2 is opened in the direction away from the inner door 3, the first hook portion 28 is caught in the vicinity of the lower edge portion of the opening 47 and the outer door 2 and the inner door 3 are not opened any more.

  This state is a state before reaching the complete lock state in which the back surface of the outer door 2 and the front surface of the inner door 3 face each other in parallel and are locked to each other. In other words, the two are connected in a state where both the doors 2 and 3 are opened slightly before the outer door 2 and the inner door 3 are completely locked.

  Therefore, when the outer door 2 is closed with respect to the main body 1, even if the inner door 3 is not completely locked with respect to the outer door 2, the first hook portion 28 is lowered to the lower edge of the opening 47 if the two approach each other. Since both are connected by being hooked in the vicinity of the part, even if the outer door 2 is opened in a state in which both the locks are incomplete, as shown in FIGS. 13 (A) to 13 (B), the inner door 3 The side end 3b on the opposite side of the hinge h2 does not hit the inner wall 1a of the front opening of the main body 1 (the inner door 3 is not left behind in the front opening of the main body 1) and is pulled by the outer door 2. And can be opened together with the outer door 2. As a result, excessive force does not act on the inner door 3 and the hinge h2, and damage to them can be prevented.

  And in this embodiment, unlike the rocking | fluctuation of the horizontal direction of patent document 1, the locking member 11 moves to an up-down direction (height direction), the engagement position with respect to the opening part 47, and the cancellation | release of the engagement. Therefore, the locking member 11 is not provided so as to protrude from the inner door side end 3b to the inner wall 1a side of the main body front opening. Further, the state in which the first hook portion 28 is engaged with the opening portion 47 is held by the locking member 11 being lowered by its own weight, so that the inner door side end portion 3b and the inner side wall portion 1a of the main body front opening are retained. There is no need to provide a spring member as in Patent Document 1. Therefore, the space between the inner door side end portion 3b and the inner side wall portion 1a of the main body front opening is not narrowed, and before the outer door 2 pulls the inner door 3, the inner door side end portion 3b is open to the main body front opening. There is no interference with the inner wall 1a.

  Further, in the present embodiment, the engagement position between the first hook portion 28 or the second hook portion 29 and the opening portion 47 is held using the gravity acting on the locking member 11. Therefore, the spring 68 for maintaining the engagement between the hook portion 64a and the openings 66a and 66b as in Patent Document 1 shown in FIG. 15 is unnecessary, and the number of parts can be reduced correspondingly to reduce the cost.

  When the outer door 2 is further closed with respect to the inner door 3 from the state in which the outer door 2 and the inner door 3 are connected by the first hook portion 28 described above, they are located on the rear side of the first hook 28. The second inclined portion 27 contacts the lower edge portion of the opening 47. In this state, when the outer door 2 and the inner door 3 are further approached, the locking member 11 is moved upward by the upward force received by the second inclined portion 27 from the lower edge portion of the opening 47, The contact position of the second inclined portion 27 with respect to the lower edge portion of the opening 47 is shifted toward the second hook portion 29.

  When the contact of the second inclined portion 27 with the lower edge of the opening 47 is released due to the further approach between the outer door 2 and the inner door 3, the locking member 11 falls downward due to its own weight, as shown in FIG. The second hook portion 29 enters the opening portion 47 and engages with the lower edge portion of the opening portion 47 so that the back surface of the outer door 2 and the front surface of the inner door 3 face each other in parallel, and both are completely locked. The In a state where the second hook portion 29 is engaged with the opening 47 and the outer door 2 is closed with respect to the main body 1, the heat insulating inner door 3 closes the product inlet 7 at the upper portion of the product storage 5. This prevents the cool air or warm air from flowing out from the product inlet 7. Of course, even if the outer door 2 is opened in this state, the inner door 3 is opened together with the outer door 2 without the inner door side end portion 3b hitting the inner side wall portion 1a of the main body front opening.

  If the engagement member 11 is lifted upward by holding the engagement release piece 24 formed at the upper end edge of the engagement member 11, the engagement from the opening 47 of the second hook portion 29 is performed. And the inner door 3 can be opened with respect to the outer door 2. Of course, the engagement from the opening 47 of the first hook portion 28 can also be released by pulling up the disengaging piece 24.

  In contrast to the above embodiment, the locking member 11 may be provided on the outer door 2 side, and the opening 47 may be provided on the inner door 3 side. Of course, the positioning protrusion 39 may be provided on the outer door 2 side, and the positioning opening 46 may be provided on the inner door 3 side.

  Moreover, the inner door 3 does not need to be a heat insulating door, and may be an inner door (display door) that does not have heat insulating properties for simply opening and closing a product display room provided inside the outer door 2. Furthermore, the inner door (display door) may be provided between the outer door 2 and the heat-insulating inner door 3 so as to be rotatable with respect to both of them. The present invention can also be applied to this.

In the vending machine which concerns on embodiment of this invention, an outer door and an inner door are the perspective views of the state opened with respect to the main body. It is an expansion perspective view of the locking member and guide member which are attached to the inner door of this embodiment. It is a front view of the locking member shown in FIG. FIG. 4 is a right side view of the locking member shown in FIG. 3. It is a front view of the guide member shown in FIG. FIG. 6 is a left side view of the guide member shown in FIG. 5. FIG. 6 is a right side view of the guide member shown in FIG. 5. It is a perspective view which shows the side edge part principal part on the opposite side to the hinge of each outer door and inner door. It is a perspective view in the state where the 1st inclined part of a locking member is in contact with the lower edge part of the opening provided in the back side of an outer door. It is a perspective view in the state where the 1st hook part of a locking member is engaged with the lower edge part of an opening. It is a side view of the state shown in FIG. It is a side view in the state where the 2nd hook part of a locking member is engaged with the lower edge part of an opening. It is a schematic diagram for demonstrating the effect | action that an outer door is opened with an inner door with respect to a main body in the state which the lower edge part of an opening part has engaged with the 1st hook part of the latching member. In the vending machine of the conventional example, when the outer door is opened with respect to the main body when the inner door is not engaged with the outer door, the side edge of the inner door interferes with the front opening inner surface of the main body. It is a schematic diagram for demonstrating. It is a cross-sectional view which shows the latching structure of the outer door and inner door in the vending machine of another prior art example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Main body, 2 ... Outer door, 3 ... Inner door, 5 ... Goods storage, 11 ... Locking member, 12 ... Guide member, 26 ... 1st inclination part, 27 ... 2nd inclination part, 28 ... 1st hook , 29 ... second hook part, 39 ... positioning protrusion, 46 ... positioning opening, 47 ... opening.

Claims (3)

A product storage is provided inside, and a main body formed with an opening facing the product storage on the front surface;
An outer door that is pivotally attached to a side edge of the main body via a first hinge and opens and closes the front surface;
An inner door rotatably attached to a side edge portion on the same side as the first hinge on the back surface of the outer door via a second hinge;
Provided on either the side edge of the outer door opposite to the second hinge on the back surface of the outer door or the side edge of the front surface of the inner door facing the side edge. A locking member having a protruding portion that protrudes toward the other side,
An opening provided on the other side and engageable with the locking member,
A first inclined portion, a first hook portion, a second inclined portion, and a second hook portion are formed on the protruding portion of the locking member in this order from the tip side.
The locking member moves upward due to the contact between the lower edge portion of the opening and the first inclined portion as the outer door and the inner door approach each other, and the lower edge portion and the first edge portion When the contact with the inclined portion is released, the locking member is lowered downward, the first hook portion is engaged with the lower edge portion, and the further movement of the outer door and the inner door approaches, When the lower edge portion and the second inclined portion come into contact with each other, the locking member moves upward, and when the lower edge portion and the second inclined portion come out of contact with each other, the locking member moves down. The vending machine, wherein the second hook portion is engaged with the lower edge portion.   The vending machine according to claim 1, wherein the inner door has a heat insulating property.   One of the side edge on the opposite side of the second hinge on the back surface of the outer door and the side edge on the front surface of the inner door facing the side edge projects toward the other. A positioning projection is provided, a positioning opening is provided on the other side, and the positioning projection and the positioning opening are brought into contact with each other, whereby the relative position between the outer door and the inner door is determined. The vending machine according to claim 1 or 2, wherein the vending machine is positioned at a position where the lower edge portion of the opening and the first inclined portion of the locking member can come into contact with each other.

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