JP3899154B2 - Fall prevention device for vending machines - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fall prevention device for a vending machine.
[0002]
[Prior art]
When a large earthquake occurs, vending machines installed on the floor may fall over, whether indoors or outdoors, such as retail stores and large supermarkets. This is because, as is well known, when a vending machine falls down, there are not enough means to prevent tilting or overturning against an earthquake.
[0003]
By the way, when a vending machine falls down, it falls to the front side with an open / close door for a reason such as installation conditions and structure. If the vending machine falls to the front side due to an earthquake, at least the transparent part that displays and stores the sample will be damaged, resulting in unusable use. Therefore, there is a demand for the emergence of a fall prevention device for vending machines in which vending machines do not easily fall forward even if a large earthquake occurs.
[0004]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION In view of the above-described conventional demands, the present invention is to provide a vending machine overturn prevention device in which a vending machine does not easily fall forward even if a large earthquake occurs. Secondly, the fall prevention device can be easily attached to the lower part of the vending machine. Thirdly, the fall prevention device can be set in a state where it can be operated by a push-in one-touch operation. Fourthly, when the vending machine is slightly tilted forward, the fall-preventing grounding member can immediately jump out of the vending machine. The fifth is that it can be used repeatedly and continuously.
[0005]
[Means for Solving the Problems]
The fall prevention device for a vending machine according to the present invention can be moved forward and backward by the support member 5 fixed to the lower part of the vending machine 2, the drive member 10 built in the rear end of the support member, and the support member. And a grounding member 20 for preventing overturning that protrudes forward by the driving force of the drive member, and a swing arm 25 that is pivotally supported by the front end portion of the support member. An engaging claw piece 28 that is pivotally provided at the tip of the sliding member and engages with the engaging part of the fall-preventing grounding member. When the vending machine 2 is in a normal state, the engaging claw piece 28 that is prevented from rotating by the restricting portion 27 provided on the swing arm is locked to the engaging portion 21. From the rocking arm locking member 35 that contacts the floor F so as to be able to That.
[0006]
In the above-described configuration, the rocking arm lock member 35 includes a nut 36 fixedly projecting from the rear end of the rocking arm 25, and a weight 37 screwed onto the nut 36 so as to be adjustable in height. It is characterized by comprising.
[0007]
The overturn prevention device for a vending machine according to the present invention includes a support member 5A fixed to the lower portion of the vending machine 2, a drive member 10 built in the rear end portion of the support member, and the support member moving forward and backward. A grounding member 20A for preventing overturning that protrudes forward by the driving force of the driving member, and a swing arm that is pivotally supported by the leading end of the support member. An engagement claw piece 28A that is bent at the tip of 25A and that engages with the engagement portion 21A of the fall-preventing grounding member 20A, on the other hand, with respect to the engagement claw piece, A swing arm locking member 35A provided at the rear end and grounded to the floor F so that the engaging claw piece 28A can be engaged with the engaging portion 21A when the vending machine 2 is in a normal state. It consists of.
[0008]
In the above configuration, the engaging claw piece 28A is formed to be bent at the tip of the swing arm 25A.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described based on the first embodiment shown in FIGS. FIG. 1 is a schematic explanatory view showing a state in which the overturn prevention device 1 is attached to the front end portion of the bottom wall 3 of the vending machine 2. FIG. 2 is an explanatory view of the state in which the overturn prevention device 1 is viewed from the plane side. FIG. 3 is an explanatory diagram of the state in which the overturn prevention device 1 is viewed from the front side. One or two of the fall prevention devices 1 are appropriately fixed to the lower part of the vending machine, but preferably a pair should be provided on the left and right of the front end portion of the bottom wall 3 of the vending machine 2. In this embodiment, for convenience of explanation, a case where the overturn prevention device 1 is attached to a portion near the right end portion of the front end portion of the bottom wall 3 of the vending machine 2 is illustrated. Accordingly, reference numeral 4 denotes a backlash preventing adjusting means that is generally attached to the right front end of the vending machine 1.
[0010]
Then, each member which comprises the fall prevention apparatus 1 is demonstrated. First, 5 is a case-shaped or cylindrical support member fixed to the lower part of the vending machine 1. The case-like support member 5 is fixed to the front end portion of the bottom wall 3 of the vending machine 2 through a plurality of fixing tools 6 in a horizontal state and with the opening 7 on the front side facing forward. Although the case-like support member 5 is formed in a rectangular long box shape, an opening 7 is required at least on the front side. Further, an escape notch 9 is formed in the front-rear direction on the bottom wall of the end guide rectangular guide tube portion 8 of the case-like support member 5. The relief notch 9 is not necessary when the head of the fixing screw 15 described later does not protrude downward.
[0011]
Next, reference numeral 10 denotes a drive member built in the rear end portion of the support member 5. The driving member 10 may be an appropriate biasing spring, but in this embodiment, a so-called gas damper using gas as an example of a pressure medium is employed.
[0012]
Reference numeral 11 denotes a lateral cylinder filled with a pressure medium such as gas or air. The proximal end of the lateral cylinder 11 is connected to a rear support 12 fixedly provided in the rear end of the support member 5. It is pivotally supported as appropriate. Reference numeral 13 denotes an operating rod inserted into the horizontal cylinder 11, and this operating rod 13 is extended by the pressure of the pressure medium (in the case of a spring member, a spring force). As shown in FIGS. 1 and 3, the distal end portion of the operating rod 13 is indirectly fixed to a grounding member 20 for preventing overturn, which will be described later.
[0013]
That is, reference numeral 14 denotes a U-shaped front support piece fixedly provided at a portion near the tip in the fall-preventing grounding member 20. The front support piece 14 is fixed in the fall-preventing grounding member 20 via a fixing screw 15 positioned in the relief cutout 9 of the support member 5. The distal end portion of the operating rod 13 is appropriately supported by a horizontal shaft 16 pivoted on the U-shaped front support piece 14.
[0014]
Next, 20 is provided on the support member 5 so as to be able to move forward and backward, and has an engagement portion (engagement pin, engagement groove, etc.) 21 at the tip, and the vending machine 2 is driven by the drive force of the drive member 10. This is a grounding member for preventing a fall from jumping forward. In this embodiment, the fall-preventing grounding member 20 is formed in a square case shape like the support member 5, and is slidably fitted into the support member 5 so that the tip portion protrudes. Therefore, the fall-preventing grounding member 20 slides forward while being supported by the case-like support member 5.
[0015]
The fall-preventing grounding member 20 is also formed in a rectangular long box shape like the support member 5, but preferably the fall-preventing grounding member 20 should be set longer than the support member 5. In the present embodiment, the fall-preventing grounding member 20 is formed slightly longer than the support member 5. As shown in FIG. 1, the tip of the tipping prevention grounding member 20 does not substantially protrude from the front surface 22 of the vending machine 2 when the tipping prevention grounding member 20 is pushed into the support member 5 and set. Is provided. The engaging portion 21 may be an engaging groove depending on the design, but in this embodiment, as shown in FIGS. 2 and 3, it integrally protrudes laterally from one side wall of the tip portion of the tipping prevention grounding member 20. One engagement pin is employed.
[0016]
Next, reference numeral 25 denotes a swing arm that is pivotally supported by a central shaft 26 that integrally projects laterally from one side wall of the front end portion of the support member 5. Here, the “central shaft 26” includes a shaft that is pivotally supported at a portion near the tip of the swing arm 25. As shown in FIG. 1 or FIG. 3, the swing arm 25 is pivotally supported horizontally along the right side walls of the support member 5 and the fall-preventing grounding member 20, and the tip end side 25a is tilted. It protrudes from the grounding member 20 for prevention. The tip of the swing arm 25 has an engaging claw piece restricting portion 27 that is bent in a right angle (lateral) direction.
[0017]
Reference numeral 28 denotes an engaging claw piece that is pivotally supported on the tip end portion of the swing arm 25 via the front pivot shaft 29 and engages with the engaging pin 21 of the fall-preventing grounding portion 20 material. The engaging claw piece 28 has a cam shape that can be rotated within a predetermined angle. For example, when the engagement claw piece 28 is based on FIG. 4, it can be rotated only in the counterclockwise direction indicated by an arrow. The outer peripheral wall surface 28a that is in contact with the inner wall surface of the engaging claw piece restricting portion 27 is formed in a slightly arc shape. Reference numeral 30 denotes a return spring for the engaging claw, and the central portion of the return spring 30 is wound around the front pivot 29. One end thereof is in contact with the projecting pin 31 at the lower end of the engaging claw piece 28, while the other end is in contact with the projecting pin 32 on the distal end side 25 a of the swing arm 25.
[0018]
Next, reference numeral 35 denotes a rocking arm locking member provided on the rear end 25b of the rocking arm 25. The rocking arm lock member 35 is integrally provided at the rear end of the rocking arm 25 with respect to the engaging claw piece 28 positioned at the front end of the rocking arm 25, and In the normal state, the engaging claw piece 28 whose rotation in the one direction (clockwise) is blocked by the restricting portion 27 of the swing arm 25 can be engaged with the engaging portion 21 so that the engaging portion 21 can be locked. Ground.
[0019]
Thus, the rocking arm locking member 35 includes a nut 36 fixedly projecting from one side wall of the rear end portion of the plate-like rocking arm 25, and a bolt screwed into the nut 36 so as to be adjustable in height. It consists of a shape weight 37. The bolt-shaped weight 37 is screwed into the nut 36 so that its head is grounded to the floor surface F.
[0020]
In the above configuration, when the vending machine 2 is in a normal state, the fall prevention grounding member 20 of the fall prevention device 1 resists the pressure of the pressure medium of the drive member 10 or the spring force of the spring member. As shown in FIG. 1, the tip portion is pushed into the support member 5 so as not to substantially protrude from the front surface 22 of the vending machine 2. By the way, for example, as shown in FIG. 4, when the fall-preventing installation member 20 is pushed into the support member 5 as shown by the arrow A, the engagement portion 21 of the fall-prevention installation member 20 is engaged with the engagement claw piece 28 at that time. As a result, the engaging claw piece 28 rotates counterclockwise against the spring force of the return spring 30. The engagement claw piece 28 gets over the engagement part 21 by the backward movement of the fall-preventing installation member 20 with respect to the support member 5, and is positioned in front of the engagement part 21. At that time, the engaging claw piece 28 is rotated back to the original position by the spring force of the return spring 30 and is engaged with the engaging portion 21. When the engaging claw piece 28 engages the engaging portion 21, the outer peripheral wall surface 28 a comes into contact with the restricting portion 27 of the swing arm 25 and does not rotate clockwise. At this time, since the weight 37 of the rocking arm lock member 35 is grounded to the floor or the ground F, the fall-preventing installation member 20 is locked to the engaging claw piece 28 of the rocking arm 25 via the engaging portion 21. Is done.
[0021]
As described above, when the vending machine 2 is in a normal state, the support member 5 and the grounding member 20 for preventing overturning are in a horizontal state together with the vending machine 2, and thus are locked to the engaging claw piece 28 of the swing arm 25. The fall prevention grounding member 20 does not jump out in front of the vending machine 2.
[0022]
However, if an earthquake occurs and the vending machine 1 is slightly tilted forward or rearward (in a state tilted rearward in FIG. 5), for example, as shown in FIG. 5, the support member 5 and the grounding member for preventing overturning are provided. 20 is slightly rotated with the central shaft 26 as a fulcrum with respect to the swing arm 25 that always keeps a horizontal state via the lock member 35, and the engaging portion 21 of the grounding member 20 for preventing overturning swings. The arm 25 is disengaged from the engaging claw piece 28. Then, as shown in FIG. 6, the fall prevention grounding member 20 jumps forward of the vending machine 1 while being slidably guided by the guide cylinder portion 8 of the support member 5 due to the extension of the operating rod 13 of the drive member 10. . When the fall prevention grounding member 20 jumps to the front of the vending machine 1, it then stops when it hits the floor or the ground F, and together with the support member 5, prevents the vending machine 1 from falling forward. To do.
[0023]
【Example】
In the first embodiment of the present invention, the case-like support member 5 and the fall-preventing grounding member 20 are formed in a rectangular long box shape, but the support member 5 functions to guide the fall-preventing grounding member 20. If the fall prevention grounding member 20 has a function of moving forward and backward with respect to the support member 5, it can be formed into a cylindrical shape, an arm shape, a frame shape, etc., and combined appropriately. it can. In addition to the gas damper, the driving member 10 may be a coil spring interposed between the inner wall surface of the rear end portion of the case-like support member 5 and the outer wall surface of the rear end portion of the fall-preventing grounding member 20. Further, the engagement relationship between the engagement portion 21 of the fall prevention grounding member 20 and the engagement claw piece 28 of the swing arm 25 is provided. An engaging portion (notch groove) that engages with the projecting pin may be formed at the lower end edge of the front end portion of the prevention ground member 20.
[0024]
Next, a second embodiment of the present invention will be described. In the description of the second embodiment, the same or similar reference numerals are given to the same components as those in the first embodiment, and duplicate descriptions are omitted.
[0025]
In the overturn prevention device 1A shown in the second embodiment shown in FIGS. 7 and 10, the main difference from the first embodiment is that the engaging claw piece 28A of the swing arm 25A has the tip of the swing arm 25A. An end surface L-shaped nut plate in which a rocking arm locking member 35A having a weight function and a bent portion is pivotally supported on the rear end portion of the rocking arm 25A via a rear pivot 40. 36A and a weight 37A having a butterfly bolt shape screwed in the nut plate 36A in the vertical direction, a lower end edge of the central portion of the swing arm 25A, and a vertical portion of the nut plate 36A of the lock member 35A Projecting spring mounting portions 41 and 42 are formed near the center of each, and the swing arm 25A and the lock member 35A are connected by the return spring 30A. In addition, a butterfly bolt weight 37A of the lock member 35A is provided. Stop at vertical position In that a stopper 43 at the rear end portion of the swing arm 25A to so that. 8 is an exploded perspective view of main members of the overturn prevention device 1A, in which reference numeral 26a denotes a horizontal shaft constituting the central shaft 26A, 26b denotes a set nut screwed to the horizontal shaft 26a, and 40a denotes a rear pivot. Reference numeral 40b denotes a projecting shaft, and 40b denotes a retaining ring that fits into the circumferential groove of the projecting shaft 40a.
[0026]
Even in this configuration, when the earthquake occurs, for example, when the vending machine 1 slightly tilts rearward as shown in FIG. 10, the support member 5A and the fall-preventing grounding member 20A are interposed via the lock member 35A. The swinging arm 25A, which is always in a horizontal state, is slightly rotated with the central shaft 26A as a fulcrum, and the pin-like engaging portion 21A of the grounding member 20A for preventing overturning is an engaging claw of the swinging arm 25A. Detach from the piece 28A. When the fall-preventing grounding member 20A is pushed into the case-like support member 5A, the tip of the swing arm 25A is temporarily brought into contact with the pin-like engagement portion 21A of the fall-preventing grounding member 20A and the engaging claw piece 28A. Since it rotates so as to float against the spring force of the return spring 30A, the so-called one-touch type fall prevention grounding member 20A is locked to the engaging claw piece 28A of the swing arm 25A and at the same time the locking member 35A The butterfly bolt weight 37A is also grounded to the floor surface F in a vertical state. Therefore, the same problem as the first embodiment can be achieved.
[0027]
Note that the return spring 30A of the second embodiment is not necessarily provided for locking the swing arm 25A to the pin-like engagement portion 21A. Therefore, depending on the design, for example, when the vending machine 1 is slightly tilted forward as shown in FIG. 10, the butterfly bolt weight 37A of the lock member 35A is urged so as to be immediately separated from the floor surface F. A function may be added.
[0028]
【The invention's effect】
As is clear from the above description, the present invention has the following effects.
(1) It is possible to provide a vending machine overturn prevention device in which a vending machine does not easily fall forward even if a large earthquake occurs.
(2) The fall prevention device can be easily attached to the lower part of the vending machine.
(3) Just by pushing the fall-preventing grounding member of the fall-preventing device into the case-like support member, the actuating rod of the drive member becomes operable, and the fall-preventing grounding member is interposed via the engaging portion. Immediately locked to the engaging claw piece of the swing arm.
(4) When the vending machine is slightly tilted forward, a grounding member for preventing overturn immediately pops out in front of the vending machine.
(5) It can be used repeatedly and continuously.
(6) The number of constituent members can be reduced as much as possible and can be manufactured at low cost.
(7) Since the height of the weight 37 can be adjusted in the invention according to claim 2, even if there is some unevenness on the floor surface F, the fall of the swinging arm can be prevented as desired. It can be locked to the engaging part of the grounding member for use.
[Brief description of the drawings]
1 to 6 are explanatory views showing a first embodiment of the present invention. 7 to 10 are explanatory views showing a second embodiment of the present invention.
FIG. 1 is a schematic explanatory view (set state) showing a state in which a fall prevention device is attached to a front end portion of a bottom wall of a vending machine.
FIG. 2 is an explanatory view of a state in which the overturn prevention device is viewed from the plane side in FIG. 1;
FIG. 3 is an explanatory diagram of a state in which the overturn prevention device is viewed from the front side in FIG. 1;
FIG. 4 is an explanatory diagram when a fall prevention device is set.
FIG. 5 is an explanatory diagram of an initial state of the overturn prevention device when the vending machine is tilted.
FIG. 6 is an explanatory diagram when the fall prevention device is activated.
FIG. 7 is a perspective view of the overturn prevention device of the second embodiment.
FIG. 8 is an exploded perspective view of the fall prevention device.
FIG. 9 is an explanatory view similar to FIG.
FIG. 10 is a view similar to FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 1A ... Fall prevention apparatus, 2 ... Vending machine, 3 ... Bottom wall, 5, 5A ... Support member, 10 ... Drive member, 11 ... Horizontal cylinder, 12 ... Actuation rod, 20, 20A ... Grounding member for fall prevention , 21, 21A ... engaging portion, 25, 25A ... swing arm, 26, 26A ... central shaft, 29 ... forward pivot shaft, 30, 30A ... return spring, 35, 35A ... lock member for swing arm, 36 ... nut 36A ... nut plate 37, 37A ... weight 40 ... rear pivot.

Claims (8)

  A support member 5 fixed to the lower part of the vending machine 2, a drive member 10 built in a rear end portion of the support member, a support member 5 provided so as to be able to move forward and backward, and an engagement portion at a front end portion 21, and is provided rotatably at the tip of a tipping end of a rocking arm 25 pivotally supported on the tip of the support member, and a grounding member 20 for preventing overturning that jumps forward by the driving force of the drive member, and An engaging claw piece 28 that engages with the engaging portion of the grounding member for preventing overturning, and is provided integrally with a rear end portion of the swing arm with respect to the engaging claw piece, and automatically When the vending machine 2 is in a normal state, the engaging claw piece 28 whose rotation is blocked by the restricting portion 27 provided on the swing arm is grounded to the floor F so that the engaging portion 21 can be locked. A vending machine overturn prevention device comprising a rocking arm locking member 35.   The rocking arm lock member 35 includes a nut 36 fixedly projecting from a rear end portion of the rocking arm 25 and a weight 37 screwed into the nut 36 so as to be adjustable in height. A fall prevention device for a vending machine characterized by comprising: 2. The drive member 10 according to claim 1, wherein the drive member 10 is inserted into the horizontal cylinder 11 so that the base end portion is attached to the rear end portion of the support member 5 and is extended by the pressure of the pressure medium. And a tipping prevention device for a vending machine comprising a working rod 13 having a tip portion fixed to a tipping prevention grounding member 20. 2. The swing arm 25 according to claim 1 , wherein the support member 5 is formed in a case shape, is pivotally supported by a central shaft 26 projecting laterally from one side wall of the front end portion of the support member 5, and the front end And an engaging claw piece 28 for engaging the engaging pin 21 of the fall-preventing grounding member 20 at the portion, and a locking member 35 that is always grounded to the floor surface F at the rear end. Fall prevention device for vending machines.   5. The vending machine according to claim 4, wherein the engaging claw piece is pivotally supported at the tip end portion of the swing arm 25 via the front pivot shaft 29 so as to be rotatable within a predetermined angle. Machine fall prevention device. A support member 5A fixed to the lower part of the vending machine 2, a drive member 10 built in a rear end portion of the support member, a support member that can be moved forward and backward, and an engagement portion at a front end portion which has a 21A, and anti-tip grounding member 20A to jump out forward by the driving force of the driving member, bending is formed on the tip portion of the support member of the tip axially supported by the swing arm 25A, and falls An engaging claw piece 28A that engages with the engaging portion 21A of the grounding member 20A for prevention, and is provided at the rear end portion of the swing arm with respect to the engaging claw piece, and the vending machine 2 In the normal state, the fall prevention device for the vending machine comprises the rocking arm locking member 35A that contacts the floor F so that the engaging claw piece 28A can be engaged with the engaging portion 21A. In claim 6, the locking member 35A for the swing arm, the nut plate 36A of the pivotally supported end faces L-shape through a rear pivot 40 to the rear end of the swing arm 25A, in the nut plate 36A A fall prevention device for a vending machine comprising a bolt-like weight 37A screwed in the vertical direction.   8. The overturn prevention device for a vending machine according to claim 7, wherein the swing arm 25A and the lock member 35A are connected by a return spring 30A.

Images