JP2006063762A - Door opening/closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door opening/closing device for prohibiting easy opening, and to provide a vending machine. <P>SOLUTION: When a door 3 is closed, a hook 14 is turned against a first torsional spring SP1 by a striker 4 and then the striker 4 is put in a locked condition. With the striker 4 in the locked condition, a lock cam 15 is turned with the elastic force of a second torsional spring SP2 and put in engagement with the striker 4 to make the hook 14 non-turnable. The striker 4 is therefore held in the locked condition. When the lock cam 15 is turned via a wire W against the elastic force of the second torsional spring SP2 with the operation of an operation handle, the hook 14 is put in disengagement from the lock cam 15 and made turnable with the first torsional spring SP1. When the door 3 is opened, the striker 4 is separated and released from the hook 14 while turning the hook 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a door opening / closing device and a vending machine.

  Conventionally, vending machines (hereinafter simply referred to as vending machines) have been installed on the road for 24 hours because of the convenience of selling products without human intervention. Therefore, it is necessary for the lock mechanism of the vending machine to take sufficient measures against the stolen money and merchandise stored therein.

  Generally, a lock mechanism of a vending machine is provided with a plurality of hooks at predetermined intervals in the vertical direction on the main body side. The hook is formed by forming a vertical groove on a metal plate to form an L-shaped hook key. On the other hand, a slider that is movable in the vertical direction is provided on the door side, and a hooking hole is provided to allow the hook to enter the slider and to move the slider up and down to hook the hook.

  When the door is locked, when the door is closed, the slider is moved upward, and the hooks respectively corresponding to the plurality of retaining holes provided in the slider are inserted. When the door is completely closed, the slider moves downward and the hooks engage with the retaining holes. In this state, when the cylinder key provided on the handle is hooked, the handle becomes inoperable and the door is locked to the vending machine main body.

When unlocking, a cylinder lock provided on the handle is unlocked with a cylinder key so that the handle can be rotated. Next, the handle is rotated to move the slider upward to release the engagement state between the hook and the hooking hole so that the hook can be removed from the hooking hole, and the door opens when the door is pulled forward ( For example, Patent Document 1).
JP 2000-207627 A

  By the way, as described above, when the handle is rotated and the slider is moved upward, all the hooks come out of the retaining holes. There was a risk that the door could be easily opened when the was moved up. Therefore, it is conceivable to deepen the vertical groove of the hook, but there is a limit because the amount of movement of the slider in the vertical direction must be increased.

Further, if the vertical grooves of the hooks are shallow, there is a problem that even if a plurality of hooks are provided, all the hooks are deformed and broken, and the door can be easily opened by simply opening one part of the door with a bar or the like.
The present invention has been made to solve the above problems, and an object of the present invention is to provide a door opening and closing device and a vending machine that cannot be easily opened.

The invention according to claim 1 is a door opening and closing device provided with a lock mechanism for locking and unlocking the door, wherein the lock mechanism is provided on either one of the storage chamber main body provided with the door or the door. A lock member; on the other side, a first lock member that is rotatably supported between a receiving position for receiving the locked member and a lock position for holding the locked member; and on the other side, the first lock It is rotatably supported between an engagement position that engages with a member and a non-engagement position that does not engage with the first lock member, and is always urged toward the engagement position by an urging means, A second lock member that rotates to the engagement position by the elastic force of the urging means when the first lock member rotates to the lock position and holds the first lock member in the lock position; It was.

  According to the first aspect of the present invention, when the door is closed, the first lock member disposed at the lock position locks the member to be locked. The first lock member is engaged with the second lock member by the urging force of the urging means and cannot rotate. As a result, the locked state of the member to be locked by the first locking member can be maintained. From this state, when the second lock member is rotated against the urging force of the urging means, the first lock member is released from the engagement with the second lock member and becomes rotatable. When the door is opened, the member to be locked is separated from the first lock member while rotating the first lock member and released from the locked state. Therefore, the operation of rotating the first lock member to release the locked member is a complicated operation compared to, for example, moving the linearly in one direction to release the locked state. As a result, it is possible to make it difficult to unlock the lock state illegally.

  According to a second aspect of the present invention, in the door opening / closing apparatus according to the first aspect, a plurality of sets of the lock mechanisms are provided, and the plurality of first lock members provided in the plurality of lock mechanisms are provided on the other side. There is provided a regulating member that reciprocates between a first position that regulates movement to the receiving position side and a second position that regulates rotation of the plurality of first locking members to the locking position side.

  According to the second aspect of the present invention, since a plurality of lock mechanisms are provided, it becomes more difficult to open the lock state illegally. Further, the restricting means restricts all the first lock members engaged with the restricting means to move to the same position side. Accordingly, even if one first lock member is illegally rotated to the receiving position, the rotation is restricted by the restricting means as long as the other first lock member is disposed at the lock position. As a result, unless all the first lock members are arranged at the receiving position, the locked state cannot be released, so that it is difficult to open the door illegally.

  According to a third aspect of the present invention, in the door opening and closing device according to the second aspect, the second lock member of the lock mechanism that engages with the restricting means is respectively resisted against the bias of the biasing means. Release means for enabling rotation from the engaged position to the disengaged position is provided.

  According to the third aspect of the present invention, the release means rotates the second lock members provided in the plurality of sets of locking devices from the engaged position to the non-engaged position against the urging force of the urging means. You can move. Therefore, the locked state of the member to be locked in each lock mechanism can be released by the release means.

  According to a fourth aspect of the present invention, in the door opening and closing device according to the second or third aspect, the second lock member is provided between the engagement position and the non-engagement position. A first control pin for controlling rotation and the restriction member are formed on the restriction member, and the movement of the restriction member between the first position and the second position is allowed by fitting the first control pin. In addition, the first guide portion that holds the rotation position of the second lock member at the non-engagement position and the first guide portion are formed continuously, and the restriction member moves forward to the second position. At this time, the first control pin is fitted from the first guide portion, and the second locking member is rotated by the biasing means to allow the rotation from the non-engagement position to the engagement position. And a second guide portion for restricting reciprocation of the restricting member.

According to the fourth aspect of the present invention, when the restricting member moves forward from the first position to the second position, the second guide portion places the second lock member at the engaging position. At this time, the second lock member restricts the reciprocation of the restricting member by fitting the first guide pin to the second guide portion. On the other hand, when the restricting member moves backward from the second position to the first position, the first guide portion moves the second lock member to the disengaged position. Therefore, in order to open the door, it is necessary to rotate each second lock member to the non-engagement position and move the regulating member to the first position. Therefore, the opening / closing operation of the door can be complicated, and consequently, the unauthorized opening of the door can be made difficult.

  According to a fifth aspect of the present invention, in the door opening and closing device according to the second or third aspect, the first locking member is pivoted between the engagement position and the non-engagement position. A second control pin that controls the first control member and the first lock member, and when the restricting member moves forward to the second position, the second control pin contacts the second control pin to hold the first lock member in the lock position. A holding portion is provided on the other side, and is rotatably supported between a locking position that locks the movement of the second control pin and a non-locking position that does not lock the movement of the second control pin. When the second lock member is rotated to the engagement position, the second lock member is disposed at the locking position, and when the second lock member is rotated to the non-engagement position, the second lock member is disposed at the non-locking position. Control cam.

  According to the fifth aspect of the present invention, when the regulating member moves forward from the first position to the second position, the second control pin comes into contact with the holding portion so as to hold the first locking member in the locked position. become. At this time, the second lock member is disposed at the locking position, and the control cam is disposed at the locking position. As a result, the control cam can lock the return movement of the restricting member and hold the restricting member in the second position. On the other hand, when the second lock member is turned to the non-engagement position and the control cam is turned to the non-lock position, the restricting member can be moved back to the first position, and the first lock member is rotated to the receiving position. To move. Therefore, in order to open the door, each second lock member is rotated to the non-engagement position, the control cam is rotated to the non-lock position, and the restriction member is moved to the first position. I have to let it. Therefore, the opening / closing operation of the door can be complicated, and consequently, the unauthorized opening of the door can be made difficult.

  According to a sixth aspect of the present invention, in the door opening and closing device according to the second or third aspect of the present invention, the first lock member is provided between the engagement position and the non-engagement position. A second control pin for controlling movement, and a lock position formed on the first lock member and engaged with the second control pin when the restricting member moves forward to the second position. And an engaging recess that engages with the second control pin to hold the first lock member in the receiving position when the restricting member moves back to the first position.

  According to the sixth aspect of the present invention, when the restricting member moves forward from the first position to the second position, the second control pin engages with the engaging recess to hold the first locking member in the locked position. To come. On the other hand, when the restricting member moves backward from the second position to the first position, the second control pin engages with the engaging recess to hold the first lock member in the receiving position. Therefore, in order to open the door, it is necessary to move the regulating member to the first position while rotating each second lock member to the non-engagement position. Therefore, the opening / closing operation of the door can be complicated, and consequently, the unauthorized opening of the door can be made difficult.

  According to a seventh aspect of the present invention, in the door opening and closing device according to the fourth or fifth aspect, the penetrating member is provided on the one side and formed in the regulating member when the regulating member moves forward to the second position. A hook that engages with the through hole in a state of being inserted through the hole and regulates the separation of the door from the housing chamber main body is provided.

  According to the seventh aspect of the present invention, when the restricting member is in the second position, the hook provided on one side engages with the restricting member provided on the other to regulate the separation of the door from the housing chamber body. To come. Therefore, since the door cannot be opened unless the restricting member is moved to the first position, it is more difficult to open the door illegally than a door opening / closing device having only a lock mechanism.

  According to an eighth aspect of the present invention, in the door opening and closing apparatus according to the seventh aspect, the operation handle for moving the regulating member back from the second position to the first position, and the regulating member being the first When the hook is inserted into the through-hole, it engages with the restricting member to engage the restricting member and engages with the hook when the restricting member is engaged with the restricting member. And a stopper member that permits the backward movement from the second position to the first position.

  According to the eighth aspect of the invention, the hook releases the engagement between the stopper member and the restricting member, and moves the restricting member from the first position to the second position. Thereby, each locking mechanism locks the member to be locked, and locks the door to the main body of the storage chamber. Therefore, it is difficult to open the door illegally without operating the operation handle.

  The invention according to claim 9 is a door opening and closing device provided with a lock mechanism for locking and unlocking a door for opening and closing the storage chamber main body, wherein the lock mechanism is dispersed in the vertical direction and the storage chamber main body or the door. A plurality of members to be locked and a first locking device distributed in the vertical direction on the door or the storage chamber main body, the first locking device being disposed at the apex position of the inverted triangle Three support shafts, a first lock member whose central portion is rotatably supported by a first lower support shaft, and a right end portion rotatably supported by an upper right second support shaft and a left end swinging upward A second lock member swingable between the first position and the second position whose left end swings downward, a control cam rotatably supported by the upper left third support shaft, and a first lock member A second control that engages with the left end of the upper part and is movable up and down between a first position above and a second position below. A pin is provided, and the left end vicinity of the second lock member and the left end vicinity of the first lock member are biased toward each other via the first spring, and the control cam is moved by the second spring to the second lock member. The first locking device is driven by the second locking member and swings between the first position and the second position, and the first locking device includes the second locking member, the control cam, and the second control pin. The second lock member is in the second position, and the second lock member engages with the first lock member to receive the member to be locked in a recess formed in the vicinity of the right end of the first lock member. A locked state in which the locked member is held in the recessed portion so as to cover the outlet of the recessed portion, and the control cam restricts the upward movement of the second control pin to restrict the rotation of the first locking member; and the second locking member And the control cam are in the first position, the control cam is the second control pin The first control member is allowed to move upward, the second control pin is in the first position, the engagement between the second lock member and the first lock member is released, and the first control member is rotated by being driven by the second control pin. The recess formed in the vicinity of the right end of the first member is released from the second lock member, and the side surface of the first lock member is in a state between the unlocked state in which the member to be locked is pushed out from the recess of the first lock member and released. It is movable.

  According to the ninth aspect of the present invention, the second lock member, the control cam, and the second control pin in the second position restrict the rotation of the first lock member, and the first lock member is a member to be locked. To hold the first locking device in a locked state. When the second lock member is driven to the first position by the electromagnetic solenoid or the motor, the control cam follows the second lock member and rotates to the first position. When the control cam rotates to the first position, the second control pin is driven toward the first position by a spring attached to the connecting member. When the second control pin is driven to the first position, the first lock member rotates toward the first position, releases the locked member held in the recess, and puts the first lock device into the unlocked state. .

  Therefore, in the locked state, the member to be locked can be held in the recess of the first lock member by the second lock member or the control cam and the second control pin in the second position. As a result, this locked state can be maintained unless the second lock member and the second control pin are moved to the second position, that is, unless the electromagnetic solenoid or the motor is driven and the connecting member is driven. Thereby, the opening and closing operation of the door can be complicated, and thus it is difficult to illegally open the door.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In FIG. 1, a vending machine (hereinafter referred to as a vending machine) 1 has a door 3 attached to a main body case 2 as a main body of a storage chamber. The door 3 is a single-open door in the present embodiment, and is connected to one side (left side) of the opening of the main body case 2 via a hinge B so as to be opened and closed.

  On the other side (right side) of the opening of the main body case 2 and on the surface 2a that contacts the right side of the door 3, as shown in FIG. The striker 4 is provided as a member to be locked. The striker 4 is formed by bending a metal rod, and a connecting portion 4b that is bent in an L shape in the horizontal direction from the tip of an arm 4a that extends forward is disposed horizontally.

  A plurality of hooks 5 (three in the present embodiment and one in FIG. 4) are provided on the upper surface 2a of the main body case 2 at a predetermined interval in the vertical direction. The hook 5 is formed of a rectangular metal plate, and an engagement groove 5a is cut out from the upper front side, and the front side of the engagement groove 5a is an engagement portion 5b. The hook 5 is provided in the main body case 2 so that the front end of the engaging portion 5b is positioned in front of the coupling portion 4b of the striker 4, and when the door 3 is closed, the back surface of the door 3 is The door 3 is inserted through an insertion hole 3b formed in 3a.

  As shown by broken lines in FIG. 1, a door opening / closing device 10 is provided inside the right side of the door 3 and at a position corresponding to each striker 4. As shown in FIG. 4, the door opening / closing device 10 includes a first lock device 11 including the striker 4 and a second lock device 12 including the hook 5. In the present embodiment, the first locking device 11 and the second locking device 12 constitute a locking mechanism.

As shown in FIG. 4, the first lock device 11 is fixed to the back surface 3 a of the door 3 so as to face the striker 4 with a predetermined interval in the vertical direction.
As shown in FIGS. 7 to 11, the first locking device 11 includes an outer case 13, a hook 14 as a first locking member that is rotatably supported in the outer case 13, and the outer case 13. It has the lock cam 15 as a 2nd lock member supported so that rotation was possible.

The outer case 13 is configured by overlapping the left case piece 13a and the right case piece 13b, and is fixed to the back surface 3a of the door 3 in the overlapped state.
The outer case 13 composed of the left and right case pieces 13a and 13b has an opening on the side facing the main body case 2, and a guide recess 16 is formed by cutting away from the opening end on both the left and right side surfaces on the opening side. When the door 3 is closed, the guide recess 16 of the outer case 13 is inserted into the connecting portion 4b of the striker 4 provided in the main body case 2.

  A first support shaft 17 is provided between the left and right case pieces 13a, 13b above the guide recess 16 in the outer case 13, and the kama 14 is rotatably supported on the first support shaft 17. Yes. The hook 14 is formed with an engagement recess 18 that allows the coupling portion 4 b of the striker 4 to be fitted when the striker 4 enters the guide recess 16 of the outer case 13. By forming the engagement recess 18, the first engagement piece 14 a and the second engagement piece 14 b are formed on both sides of the engagement recess 18 in the kama 14. And the 2nd engagement piece 14b located in the main body case 2 side is formed so that it may become shorter than the 1st engagement piece 14a.

As shown in FIG. 10, the hook 14 rotatably supported on the first support shaft 17 is given an elastic force counterclockwise in FIG. 10 by a first torsion spring SP1. When the door 3 is open and the striker 4 is separated, the stopper 14c formed on one side of the hook 14 is engaged with the inner side of the outer case 13 as shown in FIG. In combination, the first engagement piece 14 a is disposed at a position (receiving position) where the first engagement piece 14 a overlaps the guide recess 16. At this time, the second engagement piece 14 b is positioned above the guide recess 16. Therefore, when the coupling portion 4b of the striker 4 enters the guide recess 16 from this receiving position, the coupling portion 4b engages with the first engagement piece 14a, and resists the elastic force of the first torsion spring SP1. Is rotated clockwise.

  When the door 3 is in a position to completely close the main body case 2, as shown in FIG. 11, the first engaging piece 14 a and the second engaging piece 14 a and the second engaging piece 18 are fitted in the engaging concave portion 18. The engagement piece 14b stops rotating at a position (lock position) facing downward. At this time, since the second engagement piece 14b is disposed at a position where the guide recess 16 is closed, the coupling portion 4b of the striker 4 is in a state where the second engagement piece 14b is closed in the guide recess 16 by the second engagement piece 14b. Become. As shown in FIGS. 5 and 11, in this locked position, when the cam 14 is engaged with the lock cam 15 formed on the outer surface on the first engagement piece 14 a side, the cam 14 cannot be rotated counterclockwise. become. As a result, the connecting portion 4b of the striker 4 is held in a locked state where it cannot escape from the guide recess 16.

  A second support shaft 22 is provided in the outer case 13 between the left and right case pieces 13a, 13b on the lower side of the guide recess 16 and the lock cam 15 is rotatable on the second support shaft 22. It is supported by. The lock cam 15 is provided with an operation piece 15 a extending upward and an operation piece 15 b extending deep inside the outer case 13. On one side surface of the operating piece 15a, an engaging surface 23 is formed which engages with the locking cam surface 21 of the cam 14 and disables the cam 14 from rotating.

  The lock cam 15 rotatably supported by the second support shaft 22 is given an elastic force in the clockwise direction in FIG. 11 by a second torsion spring SP2 as an urging means. That is, the elastic force is applied in the direction in which the engagement surface 23 of the operating piece 15a is always engaged with the locking cam surface 21 of the hook 14. Therefore, as shown in FIG. 11, the elastic force of the second torsion spring SP <b> 2 is exerted in a state where the engaging surface 23 of the operating piece 15 a is in the engaging position where it is engaged with the locking cam surface 21 of the cam 14. Unless the lock cam 15 is rotated counterclockwise to the non-engagement position shown in FIG. 10, the engagement between the operating piece 15a and the hook 14 is not released. That is, the connecting portion 4 b of the striker 4 cannot come out of the guide recess 16.

  The operating piece 15b of the lock cam 15 is connected to a wire W that constitutes a releasing means. The wire W rotates the operation piece 15b (lock cam 15) in the counterclockwise direction against the elastic force of the second torsion spring SP2 based on the rotation operation of the operation handle H that constitutes the release means described later. It is designed to pull. Accordingly, when the engagement surface 23 of the operating piece 15a is engaged with the locking cam surface 21 of the cam 14, the operation piece 15b (lock cam 15) is pulled by the wire W and rotated counterclockwise. The engagement surface 23 and the locking cam surface 21 are disengaged.

  A first control pin P protrudes from the tip of the operating piece 15a. The first control pin P penetrates the escape hole 24 formed in the outer case 13 and protrudes from the outer case 13. The escape hole 24 formed in the outer case 13 has a shape that does not restrict the movement of the first control pin P that rotates together with the operating piece 15a when the lock cam 15 rotates.

  Accordingly, when a plurality of first locking devices 11 are provided in the vertical direction, when the door 3 is closed, the hook 14 of each first locking device 11 is rotated by the striker 4 and engaged with the connecting portion 4 b of the striker 4. To do. At this time, the lock cam 15 engages and locks the cam 14 so that the cam 14 cannot be rotated. As a result, the door 3 of the vending machine 1 is locked to the main body case 2 by the plurality of first locking devices 11.

  As shown in FIG. 1, an operation handle H is embedded on the front right side of the door 3. A cylinder lock 41 is built in the operation handle H. When the cylinder lock 41 is unlocked by inserting a key into the keyhole of the cylinder lock 41, the operation handle H embedded in the door 3 jumps out to the front of the door 3 and can be rotated. As shown in FIG. 6, an operation cam 42 is fixed to the rotation shaft of the operation handle H in the door 3. Therefore, when the operation handle H is rotated, the operation cam 42 is rotated in the operation direction around the rotation axis. As shown in FIG. 6, the operation cam 42 has a cam surface 42a and a lever piece 42b.

  At a position adjacent to the operation cam 42, a driven lever 43 is rotatably supported by a shaft 44 fixed to the inner wall of the door 3. A contact piece 45 is formed to extend from the base end of the driven lever 43. The driven lever 43 is elastically applied in the counterclockwise direction in FIG. 6 by the third torsion spring SP3, and the contact piece 45 is always in contact with the cam surface 42a of the operation cam 42. . Then, when the operation handle H (operation cam 42) is rotated counterclockwise from the two-dot chain line position in FIG. 6 to the solid line position, the driven lever 43 (contact piece 45) is moved to the cam surface 42a of the operation cam 42. By this, it rotates in the clockwise direction.

  The driven lever 43 is connected to the wire W corresponding to the operation piece 15b of the lock cam 15 provided in each first lock device 11. Accordingly, when the operation handle H (operation cam 42) is rotated counterclockwise from the two-dot chain line position shown in FIG. 6 to the solid line position and the driven lever 43 is rotated clockwise, the wires W are respectively connected. Pulled to the operation handle H side, the operation piece 15b of the lock cam 15 is rotated counterclockwise in FIG. As a result, when the engagement surface 23 of the operating piece 15a engages and locks with the locking cam surface 21 of the cam 14, the lock cam 15 and the cam 14 are disengaged and the lock is released.

  In the present embodiment, two first locking devices 11 are provided, but one of them is provided below the operation handle H. Therefore, although the wire W connected to the first locking device 11 provided at the lower position is routed downward, in the present embodiment, the wire W is once routed downward from the first locking device 11 and then upward. And is connected to the operation piece 15b of the lock cam 15.

  The second locking device 12 has a working body 31 as a stopper member at the position inside the right side of the door 3 and corresponding to the hook 5 provided on the main body case 2 side, as shown in FIGS. Is provided. The operating body 31 is rotatably supported by a shaft 32 fixed to the inner wall of the door 3. The operating body 31 has a passive piece 31a and a driven piece 31b that extend in opposite directions by 180 degrees about the shaft 32, respectively. The passive piece 31a is formed longer than the driven piece 31b. On the other hand, a locking piece 31c is formed to project forward (to the left in FIG. 4) at the tip of the driven piece 31b. The weight balance between the passive piece 31a side and the driven piece 31b side around the shaft 32 in the operating body 31 is such that the passive piece 31a is heavy, and the operating body 31 is at the lower side as shown in FIG. The driven piece 31b is balanced at a position where it is disposed on the upper side. When the door 31 is closed, the operating body 31 is configured such that the engaging portion 5b of the hook 5 comes into contact with the passive piece 32a, and the operating body 31 is moved from the position shown in FIG. 4 to the position shown in FIG. So as to be rotated clockwise. On the contrary, when the door 3 is opened, the hook 5 is separated, so that the operating body 31 is rotated and returned from the position shown in FIG. 5 toward the position shown in FIG.

As shown in FIG. 4, the second locking device 12 includes a regulating member disposed in the door 3 so as to be movable in the vertical direction at a location facing the striker 4 and the hook 5 provided in the main body case 2. The slider SL is provided. As shown in FIGS. 2 and 3, the slider SL is formed in an L-shaped flat cross section, and the side opposite to the embedded operation handle H is the first plate portion SLa, and the door 3 is closed. The side opposite to the main body case 2 is a second plate portion SLb.

  As shown in FIGS. 2 and 6, the first plate portion SLa is formed with a first engagement hole 46 that engages with the lever piece 42 b of the operation cam 42 at a position facing the operation handle H. . Then, when the operation handle H (operation cam 42) is rotated counterclockwise as shown in FIG. 6, the lever piece 42b of the operation cam 42 engaged with the first engagement hole 46 shows the slider SL. 5 from the lowest position as the second position shown in FIG. 5 to the highest position as the first position shown in FIG.

  As shown in FIG. 2, an engagement piece SLc is formed on the first plate portion SLa so as to face the second plate portion SLb, and the second engagement hole 47 penetrates the engagement piece SLc. Is formed. When the slider SL is positioned at the uppermost position shown in FIG. 4, the second engagement hole 47 enters the locking piece 31 c provided at the tip of the driven piece 31 b of the operating body 31, and the second engagement hole 47. The locking piece 31c is engaged with the upper edge. Therefore, when the locking piece 31c is engaged with the second engagement hole 47, the slider SL moves the operation handle H (operation cam 42) from the solid line position in FIG. 6 to the two-dot chain line position. Even if the lever piece 42b) is returned to the original position, the lever piece 42b is not moved downward and is held at the uppermost position. When the door 3 is closed in the state where the slider SL is held at the uppermost position, the hook 5 rotates the operating body 31, so that the engagement between the operating body 31 and the slider SL is released. Move downward (drop) toward the lower position. Note that both ends of the shaft 32 that rotatably supports the operating body 31 are attached to the inner wall of the door 3. For this reason, the first plate portion SLa is formed with an escape hole G having a shape that does not collide with the shaft 32 even if the slider SL moves up and down, and the shaft 32 passes through the escape hole G.

  The slider SL is formed with first through holes 48 that allow the hooks 5 to enter when the slider SL is at the uppermost position. The uppermost first through hole 48 is formed at a position where the passive piece 31a of the operating body 31 can be rotated. When the hook 5 is inserted into the first through hole 48, the passive piece 31a of the operating body 31 is rotated so that the slider SL moves downward (falls) toward the lowest position. Then, as shown in FIG. 5, the upper edge portion of the first through hole 48 enters the engagement groove 5a of each hook 5, and the hook 5 and the slider SL are brought into an engaged state. Further, when the slider SL moves upward from this engaged state, the slider SL moves upward from the engaging groove 5a of the hook 5 to a position where the upper edge of the first through hole 48 is removed. 5 can be pulled out.

  A second through hole 49 into which the outer case 13 of the first lock device 11 is fitted is formed in the second plate portion SLb adjacent to each first lock device 11 fixed to the back surface 3a of the door 3. . The size of the second through hole 49 is formed such that the second plate portion SLb does not collide with the outer case 13 even when the slider SL moves up and down.

  In addition, an inverted L-shaped guide hole 50 is formed in each first plate portion SLa adjacent to each first locking device 11. The inverted L-shaped guide hole 50 includes a first guide portion 51 extending in the vertical direction and a second guide portion 52 extending from the upper end of the first guide portion 51 toward the main body case 2 (second plate portion SLb). Composed. Each guide hole 50 is inserted with a first control pin P formed on the operating piece 15 a of the lock cam 15 of the corresponding first lock device 11. When the slider SL is at the uppermost position, as shown in FIG. 4, the first control pin P is located at the lower end of the first guide portion 51 and restricts further upward movement. When the slider SL is at the lowest position, the first control pin P is positioned at the upper end of the first guide portion 51 and restricts further downward movement, as shown in FIG.

The first guide portion 51 has a lock cam 1 when the first guide portion 51 has the first control pin P.
5 is formed at a position where the lock cam 15 is rotated against the elastic force of the second torsion spring SP2 so that the actuating piece 15a (engagement surface 23) of 5 does not engage with the hook 14 (locking cam surface 21). Yes. When the first control pin P is positioned at the upper end of the first guide part 51, the second guide part 52 is guided by the first control pin P to rotate the operating piece 15a of the lock cam 15. It is formed continuously from the upper end of the first guide portion 51 so as to allow engagement with the hook 14. Therefore, when the first control pin P is guided to the second guide portion 52, the slider SL is in a state in which it cannot move up and down at the lowest position by the first control pin P.

  Therefore, as shown in FIG. 5, the slider SL is at the lowest position in a state where the door 3 is locked with respect to the main body case 2. The first control pin P is guided by the second guide portion 52 and engages with the lock cam 15 and the hook 14, and the hook 14 locks the coupling portion 4 b of the striker 4. When the operation handle H (operation cam 42) is rotated counterclockwise from this state, the first control pin P is moved from the second guide portion 52 to the upper end of the first guide portion 51 via the driven lever 43 and the wire W. Guided to the side. As a result, the lock cam 15 rotates and the engagement between the lock cam 15 and the hook 14 is released.

  At this time, since the first control pin P is guided to the upper end of the first guide portion 51, when the operation handle H is rotated, the slider SL moves up. When the slider SL moves up to the uppermost position, the hook 5 is disposed at a position where it can be pulled out from the first through hole 48 formed in the slider SL. When the door 3 is opened from this state, the hook 5 comes out of the first through hole 48. At this time, the operating body 31 is disengaged from the uppermost hook 5 and its locking piece 31c engages with the second engagement hole 47 of the slider SL, as shown in FIG. Is held in the uppermost position. Further, when the door 3 is opened, the connecting portion 4 b of the striker 4 moves away from the first lock device 11 while rotating the hook 14.

  Further, when the door 3 is closed from the state in which the door 3 is opened, first, the connecting portions 4b of the strikers 4 enter the corresponding first locking devices 11 and rotate the hooks 14 while rotating the hooks 14 with the hooks 14. Lock the striker 4. When the striker 4 is locked, the hook 5 passes through the first through hole 48 of the slider SL and rotates the operating body 31. As a result, the slider SL is disengaged from the operating body 31, falls from the uppermost position to the lowermost position, and enters the latched state.

  And by this fall, hook 5 and slider SL will be in an engagement state. Further, the first control pin P of the lock cam 15 is guided to the second guide portion 52 from the lower end to the second guide portion 52 due to the fall. That is, the lock cam 15 engages with the hook 14 and makes the hook 14 unrotatable.

  From this state, if the operating handle H is pushed into the door 3 and the cylinder lock 41 is locked, the operating handle H is buried in the door 3 and cannot be operated. It will be locked. When the door 3 is unlocked, a key is inserted into the key hole of the cylinder lock 41 to unlock the cylinder lock 41, and the operation handle H embedded in the door 3 is popped out forward of the door 3 as described above. The door 3 can be opened by rotating the method.

According to the above embodiment, the following effects can be obtained.
(1) According to the present embodiment, when the door 3 is closed, the hook 14 is rotated by the striker 4 against the first torsion spring SP1, and the striker 4 is locked. When the striker 4 is locked, the lock cam 15 is rotated by the elastic force of the second torsion spring SP2 and engages with the hook 14 to make the hook 14 unrotatable. Therefore, the lock of the striker 4 is maintained at the hook 14. When the lock cam 15 is rotated against the elastic force of the second torsion spring SP2 by the operation handle H, the hook 14 is disengaged from the lock cam 15 and can be rotated by the first torsion spring SP1. become. When the door 3 is opened, the striker 4 is released away from the hook 14 while rotating the hook 14.

Therefore, when the striker is illegally opened, the striker 4 cannot be opened unless the lock cam 15 is rotated. For example, this is more complicated than the case where the locked state is released by linear movement in one direction. Therefore, it is difficult to unlock the lock state illegally.
(2) In the present embodiment, a plurality of first locking devices 11 are provided. And the operation piece 15b of the lock cam 15 of each 1st locking device 11 was connected with the operation handle H via the wire W, respectively. Therefore, even if the wire W of one first locking device 11 is illegally operated to release the locked state of the first locking device 11, the locked state of the other first locking device 11 cannot be released. As a result, it is very difficult to open and close the vending machine 1 illegally.
(3) In the present embodiment, when the first locking device 11 is in the locked state, the first control pin P provided on the operating piece 15a is engaged with the second guide portion 52 of the guide hole 50 formed in the slider SL. Yes. Therefore, even if the slider SL is moved up illegally, the slider SL does not move up. As a result, there is no possibility that the slider SL is moved upward so that all the hooks 5 are pulled out of the first through holes 48 and opened illegally.
(Second Embodiment)
Hereinafter, a first embodiment embodying the present invention will be described with reference to FIGS. In the second embodiment, the first locking device 11 and the slider SL in the first embodiment are changed, and the other configurations are the same as those in the first embodiment. Therefore, in the following, the first locking device 11 and the slider SL will be described in detail.

  As shown in FIGS. 13 to 15, the first locking device 61 is a pivot 63 supported as a first locking member that is rotatably supported in the outer case 62, and is also rotatably supported in the outer case 62. In addition, a lock cam 64 as a second lock member, and a control cam 65 that constitutes a biasing means that is also rotatably supported.

  The outer case 62 is configured by overlapping the left case piece 62a and the right case piece 62b, and is fixed to the back surface 3a of the door 3 in the overlapped state. The outer case 62 is open on the side facing the main body case 2 to form the guide recess 16 as in the first embodiment. The outer case 62 has an introduction recess 66 formed by notching the lower side of the side facing the guide recess 16 (the main body case 2 side). In the upper center of the left case piece 62a, a guide hole 68 that penetrates the left case piece 62a and is long in the vertical direction is provided.

A first support shaft 70 is provided in the outer case 62 and between the left and right case pieces 62a, 62b on the back side of the guide recess 16, and the first support shaft 70 has a kama 63 at its center. It is supported so that it can rotate. In the vicinity of the right end of the hook 63 in FIG. 13, a first engagement recess 71 is formed as a recess that allows the coupling portion 4 b of the striker 4 to be fitted. By forming the first engagement recess 71, the first engagement piece 63a and the second engagement piece 63b are formed on both sides of the first engagement recess 71 in the kama 63. The hook 63 has a second engagement recess 72 formed at a position behind the first engagement recess 71 and adjacent to the second engagement piece 63b. A contact piece 73 serving as a holding portion extending to the back side is formed on the hook 63 at a position on the back side of the second engagement recess 72 and overlapping the introduction recess 66. The hook 63 supported rotatably on the first support shaft 70 is hooked with one end of a suspension spring SP4 as a first spring constituting the biasing means in the vicinity of the left end in FIG. Elastic force is applied in the clockwise direction. As shown in FIG. 14, when the striker 4 is separated, the second engagement piece 63b of the hook 63 is disposed at a position (receiving position) where the second engagement piece 63b overlaps the guide recess 16, and the first engagement piece 63a is It is arranged below the guide recess 16. Therefore, at this receiving position, the striker 4
When the connecting portion 4b enters the guide recess 16, the connecting portion 4b rotates the hook 63 counterclockwise against the elastic force of the suspension spring SP4.

  When the door 3 is in a position to completely close the main body case 2, as shown in FIG. 15, the first engagement piece 63a and the first engagement recess 63a are fitted in the first engagement recess 71 with the coupling portion 4b. The rotation is stopped at a position (lock position) where the second engagement piece 63b faces upward. When the lock cam 64 is engaged with the hook 63 in this locked position, the hook 63 cannot be rotated in the clockwise direction. As a result, the connecting portion 4b of the striker 4 is held in a locked state where it cannot escape from the guide recess 16.

  A second support shaft 74 is provided between the left and right case pieces 62a, 62b above the guide recess 16 in the outer case 13, and a lock cam 64 is rotatably supported by the second support shaft 74. ing. The lock cam 64 is formed with an engagement piece 64 a that engages with the second engagement recess 72 of the hook 63 and disables the rotation of the hook 63 so as to extend downward. The lock cam 64 is provided with a through hole 64b penetrating the left and right sides at a position overlapping the guide hole 68 in the vicinity of the left end in FIG. A guide pin P1 is inserted through the through hole 64b, and the guide pin P1 passes through a guide hole 68 formed in the left case piece 62a. The guide pin P1 rotates along the guide hole 68, thereby restricting the rotation of the lock cam 64 between the lock position and the receiving position. That is, as shown in FIG. 15, when the guide pin P1 is positioned at the lower end of the guide hole 68, the engagement piece 64a and the second engagement recess 72 of the hook 63 are engaged, and the lock cam 64 is disposed at the lock position. Is done. On the other hand, as shown in FIG. 14, when the guide pin P1 is positioned at the upper end of the guide hole 68, the engagement between the engagement piece 64a and the second engagement recess 72 is released, and the lock cam 64 is disposed at the receiving position. Is done.

  The lock cam 64 rotatably supported by the second support shaft 74 is given an elastic force in the counterclockwise direction in FIG. 15 by hooking the other end of the suspension spring SP4 on the guide pin P1. . That is, an elastic force is applied in a direction in which the engagement piece 64 a engages with the second engagement recess 72 of the hook 63. Accordingly, as shown in FIG. 15, the elastic force of the suspension spring SP <b> 4 is exerted in the state where the engagement piece 64 a is in the engagement position (second position) engaged with the second engagement recess 72 of the hook 63. The engagement piece 64a and the second engagement recess 72 are not disengaged unless the lock cam 64 is rotated clockwise to the non-engagement position (second position) shown in FIG. That is, the coupling portion 4 b of the striker 4 is held in a state where it cannot be pulled out from the guide recess 16.

  A third support shaft 75 is provided in the outer case 13 and between the left and right case pieces 62a and 62b above the introduction recess 66, and the control cam 65 is rotatably supported by the third support shaft 75. Has been. The control cam 65 is formed with an operating piece 65a extending forward and a locking piece 65b extending downward. The control cam 65 is disposed on the left case piece 62a side of the cam 63 and the lock cam 64, and the operating piece 65a is engaged with the upper side of the guide pin P1.

  The control cam 65 rotatably supported on the third support shaft 75 is given an elastic force in the clockwise direction in FIG. 15 by a third torsion spring SP5 as a second spring constituting the biasing means. Yes. That is, an elastic force is applied to the control cam 65 in the direction in which the operating piece 65a always moves down the guide pin P1 (lock cam 64). Therefore, as shown in FIG. 15, the control cam 65 resists the elastic force of the third torsion spring SP5 at the position (locking position and second position) where the guide pin P1 is disposed at the lower end of the guide hole 68. The engagement between the engagement piece 64a and the second engagement recess 72 is not released unless the operation piece 65a is rotated counterclockwise to the positions shown in FIG. 14 (the non-locking position and the first position). That is, the coupling portion 4 b of the striker 4 is held in a state where it cannot be pulled out from the guide recess 16.

  The guide pin P1 is connected to a wire W as a release means that can be pulled from above. The wire W is pulled by rotating the guide pin P1 (lock cam 64) in the clockwise direction against the elastic force of the suspension spring SP4 and the third torsion spring SP5 based on the rotation operation of the operation handle H. It has become. Accordingly, as shown in FIG. 15, the guide pin P <b> 1 (lock cam 64) is pulled up and moved by the wire W in a state where the engagement piece 64 a of the lock cam 64 is engaged with the second engagement recess 72 of the hook 63. Let Then, the control cam 65 moves up to a position where the guide pin P1 contacts the upper end of the guide hole 68, and the engagement state between the lock cam 64 and the cam 63 is released as shown in FIG.

  As shown in FIG. 12, the first plate portion SLa of the slider SL serving as a regulating member and a connecting member adjacent to each first lock device 61 has a length approximately equal to the left-right width of the second plate portion SLb. The second control pins P2 are integrally formed through the first plate portion SLa so as to protrude in the left-right direction. When the slider SL is at the lowest position, the second control pin P2 is a position (second position) where the second control pin P2 comes into contact with the contact piece 73 of the hook 63 of the corresponding first lock device 61 from above as shown in FIG. Is arranged to restrict the rotation of the hook 63 in the clockwise direction. At this time, the second control pin P2 is restricted from moving upward by the lower surface of the locking piece 65b of the control cam 65 located at the locking position. Therefore, when the slider SL is in the lowest position, the hook 63 of the first lock device 61 is not allowed to rotate at the lock position by the second control pin P2, and the first lock device 61 causes the joint portion of the striker 4 to be turned. 4b is maintained in a locked state where it cannot escape from the guide recess 16. The slider SL is held so as not to move upward at the lowest position by the locking piece 65b. That is, when the guide pin P1 is pulled up by the wire W, the control cam 65 rotates counterclockwise (non-locking position), and the engagement between the second control pin P2 and the lower surface of the locking piece 65b of the control cam 65 is achieved. The slider SL cannot move up unless the match is solved.

  In this state, when the operation handle H (operation cam 42) is rotated counterclockwise, the guide pin P1 is guided to the upper end side of the guide hole 68 through the wire W. As a result, the control cam 65 and the lock cam 64 are rotated, and the lock cam 64 and the hook 63 are disengaged. Then, when the lock cam 64 is rotated, the suspension spring SP4 is extended. At this time, when the operation handle H is turned, the slider SL is moved upward, and the second control pin P2 is guided to the upper end (first position) of the introduction recess 66. As a result, the hook 63 is rotated and disposed at the receiving position, and the unlocking state in which the coupling portion 4 b of the striker 4 is separated from the first engagement recess 71 is achieved. When the slider SL is moved up to the uppermost position, the engagement between the hook 5 and the first through hole 48 formed in the slider SL can be released, and the door 3 can be opened.

  When the door 3 is closed after the door 3 is open, the slider SL falls from the uppermost position to the lowermost position, the hook 5 engages with the slider SL, and the second control pin P2 comes into contact with the hook 63. The kama 63 is made unrotatable by coming into contact with the piece 73.

According to the above embodiment, the following effects can be obtained.
(1) According to this embodiment, when the door 3 is closed, the kama 63 engages the coupling portion 4 b of the striker 4 with the first engagement recess 71 of the kama 63. At this time, in the hook 63, the second engaging recess 72 of the hook 63 and the engaging piece 64a of the lock cam 64 are engaged by the elastic force of the third torsion spring SP5. Further, the hook 63 is engaged with the contact piece 73 of the hook 63 and the second control pin P2 of the slider SL. Then, the engagement between the lock cam 64 and the slider SL makes the hook 63 impossible to rotate. Accordingly, the striker 4 is locked by the first engaging recess 71 of the hook 63. When the lock cam 64 is rotated against the elastic force of the third torsion spring SP5 by the operation handle H and the second control pin P2 is moved upward, the hook 63 is disengaged from the lock cam 64. Can be rotated.

Therefore, when the lock state is illegally released, the striker 4 cannot be released unless the lock cam 64 is rotated. For example, this is a complicated operation compared with the case where the lock state is released by linear movement in one direction, and the vending machine is illegally operated. It can be very difficult to open and close 1.
(2) In this embodiment, the hook 63 and the lock cam 64 are connected by the suspension spring SP4. When the striker 4 is locked, the second control pin P2 of the slider SL is brought into contact with the contact piece 73 of the hook 63. Therefore, unless the second control pin P2 is moved upward, even if only the wire W connected to the lock cam 64 is pulled upward and the lock cam 64 is rotated, the suspension spring SP4 extends, whereby the rotation of the hook 63 is caused. It is suppressed. As a result, it is possible to maintain the striker 4 locked even if only the wire W is pulled upward, and to make it difficult to open the locked state illegally.
(3) In the present embodiment, the upward movement of the second control pin P2 formed on the slider SL is restricted by the lower surface of the locking piece 65b of the control cam 65. The control cam 65 is always urged in a direction to restrict the upward movement of the second control pin P2 by the elastic force of the third torsion spring SP5. Therefore, even if the slider SL is to be moved up improperly, the slider SL will not be moved up unless the control cam 65 is rotated. As a result, it is possible to make it difficult to open the lock state illegally.
(Third embodiment)
A first embodiment embodying the present invention will be described below with reference to FIGS. In the third embodiment, the cam 63 and the slider SL in the second embodiment are changed so that the control cam 65 is not used. In other respects, the third embodiment has the same configuration as the second embodiment. It has become. Therefore, in the following, the hook 63 and the slider SL will be described in detail.

  As shown in FIG. 17, a first support shaft 70 is provided between the left and right case pieces 62 a and 62 b, and a kama 63 is rotatably supported on the first support shaft 70. An engagement recess 80 is formed at a position behind the second engagement recess 72 of the hook 63 and overlapping the introduction recess 66. By forming the engagement recess 80, the upper locking piece 80a and the lower locking piece 80b extending in the rear side in FIG.

  Between the upper locking piece 80a and the lower locking piece 80b, as shown in FIGS. 18 and 19, the second control pin P2 of the slider SL (see FIG. 16) as a regulating member is arranged. Yes. When the slider SL is disposed at the lowermost position, the second control pin P2 abuts on the upper surface of the lower locking piece 80b as shown in FIG. To do. When the lock cam 64 is disposed at the engagement position, the second control pin P2 is restricted from moving upward by the lower surface of the upper locking piece 80a, and the slider SL cannot be moved upward. Therefore, unless the lock cam 64 is rotated to the non-engagement position, that is, unless the guide pin P1 is pulled up by the wire W, the slider SL is held at the lowest position, and the hook 63 holds the striker 4 in the locked state. .

  When the operation handle H (operation cam 42) is rotated counterclockwise in a state where the slider SL is disposed at the lowest position, the lock cam 64 is rotated by the wire W, and as shown in FIG. The engagement between the lock cam 64 and the hook 63 is released. When the engagement between the lock cam 64 and the hook 63 is released, the second control pin P2 (slider SL) is released from the restriction by the upper locking piece 80a and is allowed to move upward. . Then, the operation handle H is further rotated counterclockwise, the slider SL is moved upward, and the second control pin P2 presses the upper locking piece 80a upward. Thereby, the hook 63 is rotated to the receiving position so that the striker 4 can be separated from the first engagement recess 71, that is, the door 3 can be opened.

  When the door 3 is closed from the state in which the door 3 is opened, the striker 4 presses the second engaging piece 63b to the back side and tries to rotate the hook 63 counterclockwise. As a result, the lower surface of the upper locking piece 80a attempts to move the second control pin P2 (slider SL) downward. From this state, when the operation handle H can be rotated clockwise, the slider SL moves to the lowest position in conjunction with the rotation of the cam 63 to the locked position, and the lock cam 64 moves to the engaged position. Moving. When the slider SL is disposed at the lowermost position, each of the hooks 63 is disposed at a lock position where the striker 4 is locked, and engages with the lock cam 64 to hold the locked state.

According to the above embodiment, the following effects can be obtained.
(1) According to the present embodiment, the second control pin P2 is arranged between the upper locking piece 80a and the lower locking piece 80b formed on the kama 63. Therefore, the striker 4 can be kept locked by the first engaging recess 71 of the hook 63 as long as the respective locking cams 64 are not rotated to the non-engaging position while the slider SL is moved to the uppermost position. As a result, when the lock state is illegally released, for example, the operation is more complicated than when the lock state is released by linear movement in one direction, and it is extremely difficult to open and close the vending machine 1 illegally. it can.
(2) According to the present embodiment, the rotation of each pad 63 is interlocked with the reciprocation of the slider SL. Therefore, when the slider SL is moved to the lowest position, all the hooks 63 can be reliably moved to the lock position. Further, when the slider SL has moved to the uppermost position, all the hooks 63 can be reliably moved to the receiving position. As a result, in the state in which the door 3 is closed, the hooks 63 can be surely arranged at the locked position, and there is no possibility that the striker 4 is in an insufficiently locked state.

In addition, you may change each said embodiment as follows.
In the above embodiment, two first locking devices 11 are provided. However, the present invention is not limited to this, and one or three or more first locking devices 11 may be provided.

-In the said embodiment, although it actualized to the vending machine 1, it is not limited to this, What is necessary is just what opens and closes a door.
In the above embodiment, three hooks 5 are provided. However, the present invention is not limited to this. One, two, or four or more hooks 5 may be provided. Furthermore, you may apply to the vending machine etc. of only the 1st locking device 11 which does not provide the hook 5. FIG.

  In the above embodiment, the second guide portion 52 is formed so as to extend at a right angle to the first guide portion 51, but from the upper end of the first guide portion 51, the second guide portion 52 has an arc shape centering on the second support shaft 22. You may form in.

  In the above embodiment, the wire W is pulled by the rotation of the driven lever 43. However, for example, the wire W may be a slider that can move in the pulling direction (the left-right direction shown in FIG. 6). Any device that pulls the wire W in conjunction with the rotation of the handle H may be used.

  In the above embodiment, the operating body 31 is rotated by the hook 5 and the slider SL is moved from the uppermost position to the lowermost position. However, the present invention is not limited to this. Anything can be used.

  In the first embodiment, the first torsion spring SP1 is disposed at a position where the hook 14 is always urged toward the receiving position. However, the first torsion spring SP1 is disposed at a position where both the receiving position and the locking position are urged. Also good.

1 is an overall perspective view of a vending machine according to a first embodiment embodying the present invention. The whole perspective view of a slider. The plane sectional view explaining the relation between a slider and an operation cam similarly. The principal part longitudinal cross-sectional view which similarly shows the relationship between the slider of an uppermost position, a hook, and a striker. The principal part longitudinal cross-sectional view which similarly shows the relationship between the slider of a lowest position, a hook, and a striker. The principal part front view explaining an operation handle, an operation cam, and a follower lever similarly. The perspective view of the 1st locking device similarly. The front view of a 1st locking device similarly. The disassembled perspective view of a 1st locking device similarly. Sectional drawing explaining a 1st locking device similarly. Sectional drawing explaining a 1st locking device similarly. The whole perspective view of the slider of a 2nd embodiment which materialized the present invention. The disassembled perspective view of a 1st locking device similarly. Sectional drawing explaining a 1st locking device similarly. Sectional drawing explaining a 1st locking device similarly. The whole perspective view of the slider of a 3rd embodiment which materialized the present invention. The disassembled perspective view of a 1st locking device similarly. Sectional drawing explaining a 1st locking device similarly. Sectional drawing explaining a 1st locking device similarly.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vending machine, 2 ... Main body case, 3 ... Door, 4 ... Strike as a member to be locked, 4b ... Connection part, 5 ... Hook, 10 ... Door opening and closing device, 11 ... First locking device, 12 ... Second Lock device, 13, 62 ... outer case, 14, 63 ... hook as first lock member, 15, 64 ... lock cam as second lock member, 15a ... operating piece, 15b ... operating piece, 21 ... locking cam surface , 23 ... engagement surface, 31 ... operating member as a stopper member, 41 ... cylinder lock, 42 ... operation cam, 43 ... driven lever, 46 ... first engagement hole, 47 ... second engagement hole, 48 ... first DESCRIPTION OF SYMBOLS 1 Through-hole, 50,68 ... Guide hole, 51 ... 1st guide part, 52 ... 2nd guide part, 65 ... Control cam which comprises a biasing means, 71 ... 1st engagement recessed part as a recessed part, 73 ... Holding | maintenance A contact piece as a portion, 80 ... an engagement recess, 80a ... an upper locking piece, 0b: Lower locking piece, W: Wire constituting release means, P: First control pin, P1: Guide pin, P2: Second control pin, H: Operation handle constituting release means, SL: Restricting member SP1,... First torsion spring, SP2... Second torsion spring as urging means, SP4... Suspension spring as the first spring constituting the urging means, SP5... Second spring constituting the urging means. The third torsion spring.

Claims (9)

In the door opening and closing device provided with a lock mechanism for locking and unlocking the door,
The locking mechanism is
A member to be locked provided on either the storage chamber main body or the door provided with the door;
On the other hand, a first lock member that is rotatably supported between a receiving position for receiving the locked member and a lock position for holding the locked member;
On the other side, it is supported so as to be rotatable between an engagement position that engages with the first lock member and a non-engagement position that does not engage with the first lock member. When the first lock member is biased to the position side and the first lock member is rotated to the lock position, the first lock member is held at the lock position by rotating to the engagement position by the elastic force of the biasing means. A door opening and closing device comprising a second locking member. The door opening and closing device according to claim 1,
A plurality of the lock mechanisms are provided,
On the other hand, a first position for restricting the rotation of the plurality of first lock members provided in the plurality of lock mechanisms to the receiving position side, and a rotation of the plurality of first lock members for the lock position. A door opening and closing device comprising a regulating member that reciprocates between a second position that is regulated to the side. The door opening and closing device according to claim 2,
Release means for enabling the second lock member of the lock mechanism engaged with the restricting member to rotate from the engagement position to the non-engagement position against the urging force of the urging means, respectively. A door opening and closing device characterized by that. In the door opening and closing device according to claim 2 or 3,
A first control pin provided on the second lock member for controlling rotation of the second lock member between the engagement position and the non-engagement position;
The restriction member is formed on the restriction member, and the first control pin is fitted to allow the restriction member to move between the first position and the second position, and the second lock member is rotated. A first guide part for holding the position in the disengaged position;
When the restricting member is formed continuously from the first guide portion and moves forward to the second position, the first control pin is fitted from the first guide portion, and the second lock member is And a second guide portion that is rotated by the urging means to allow rotation from the non-engagement position to the engagement position and to restrict reciprocation of the restriction member. Switchgear. In the door opening and closing device according to claim 2 or 3,
A second control pin that is provided on the restriction member and controls rotation of the first lock member between the engagement position and the non-engagement position;
A holding portion that is formed on the first lock member and holds the first lock member in the locked position by contacting the second control pin when the restricting member moves forward to the second position;
Provided on the other side and rotatably supported between a locking position for locking the movement of the second control pin and a non-locking position for locking the movement of the second control pin; A control cam disposed at the locking position when the locking member is rotated to the engaging position, and disposed at the non-locking position when the second locking member is rotated to the non-engaging position; A door opening and closing device comprising: In the door opening and closing device according to claim 2 or 3,
A second control pin that is provided on the restriction member and controls rotation of the first lock member between the engagement position and the non-engagement position;
When the restricting member is moved to the second position, the first lock member is engaged with the second control pin to hold the first lock member in the locked position, and the restricting member is formed on the first lock member. An door opening / closing device comprising: an engaging recess that engages with the second control pin to hold the first lock member in a receiving position when the actuator moves backward to the first position. In the door opening and closing device according to claim 4 or 5,
The accommodation chamber of the door is provided on the one side and engages with the through hole in a state of being inserted into a through hole formed in the restriction member when the restriction member moves forward to the second position. A door opening and closing device comprising a hook for regulating separation from a main body. The door opening and closing device according to claim 7,
An operation handle for moving the regulating member back from the second position to the first position;
When the restricting member is in the first position, it engages with the restricting member to hold the restricting member in the first position, and when the hook is inserted into the through hole, A door opening and closing device comprising: a stopper member that engages and allows the restricting member to move backward from the second position to the first position. A door opening and closing device provided with a lock mechanism for locking and unlocking a door for opening and closing the storage chamber body,
The locking mechanism
A plurality of locked members provided in the storage chamber main body or the door distributed in the vertical direction, and a plurality of first locking devices provided in the door or the storage chamber main body distributed in the vertical direction,
The first locking device is
Three support shafts arranged at the apex position of the inverted triangle;
A first locking member having a central portion rotatably supported by a first lower support shaft at the center;
A second lock member swingable between a first position where the right end portion is rotatably supported by the second support shaft on the upper right and the left end swings upward; and a second position where the left end swings downward;
A control cam rotatably supported on the upper left third support shaft;
A second control pin that engages with the left end of the first lock member and is movable up and down between a first position above and a second position below;
The vicinity of the left end of the second lock member and the vicinity of the left end of the first lock member are biased toward each other via the first spring, and the control cam is moved to the vicinity of the left end of the second lock member by the second spring. Oscillated between the first position and the second position by being pressed and driven by the second locking member;
The first locking device is
The second lock member, the control cam, and the second control pin are in the second position, and the second lock member and the first lock member are engaged with each other to be locked in the recess formed near the right end of the first lock member. The second lock member covers the outlet of the concave portion of the first lock member and holds the locked member in the concave portion, and the control cam restricts the upward movement of the second control pin and controls the first lock. The locked state in which the rotation of the member is restricted, the second lock member and the control cam are in the first position, the control cam allows the second control pin to move upward, and the second control pin is in the first position. And the engagement between the second lock member and the first lock member is released, and the recess formed in the vicinity of the right end of the first lock member rotated by being driven by the second control pin is released from the second lock member. The concave side surface of the first lock member urges the first member to be locked. Door opening and closing device which is a state movable between an unlocked state has been released extruded from the recesses of the click member.

Images