JP2008161520A - Stored object falling prevention device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stored object falling prevention device capable of preventing falling of a stored object by sensitively reacting to not only back-and-forth vibration but also side-to-side vibration of a storage device, and attaining it with a reduced number of components. <P>SOLUTION: This stored object falling prevention device includes a swinging member disposed in a storage case, rotationally turning between an interruption position interrupting to take out an object stored in the storage case, and a retreat position retreating from the interruption position and non-interrupting to take out the object, and responding to the vibration due to an earthquake and rotationally turning to the interruption position. This stored object falling prevention device further includes a swinging element freely swinging in the perpendicular direction to the rotational surface of the stored object falling prevention member, and a swinging direction changing and transmitting means for changing the direction of the swinging movement of the swinging element in the rotational direction of the stored object falling prevention member and transmitting the swinging movement of the swinging element to the stored object falling prevention member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a stored item fall prevention device for preventing stored items such as chemical bottles stored in a storage device from falling when a storage device such as a chemical shelf is shaken by an earthquake or the like. The present invention relates to a stored item fall prevention device that reacts sensitively even when it swings from side to side as well as back and forth to prevent the fall of stored items and to achieve this at a low cost with few components. .

FIG. 1 is a side view of the stored item fall prevention device disclosed in Patent Document 1. FIG.
In this conventionally known device, a swingable fall prevention tool 18 is attached to a horizontal pin 14 fixed to the box 10. Since the fall prevention tool 18 has a heavy rear end (right end in the figure), it is always urged to rotate clockwise in the state shown in the figure. A fall prevention bar 20 perpendicular to the paper surface is fixed to the tip of the arm 16 integrated with the fall prevention tool 18. Since the fall prevention bar 20 is at a position lower than the bottom 10a of the box 10 in the illustrated position, a medicine bottle placed on the bottom is freely taken out from or placed on the left side of the shelf. Can be operated. The position of the fall prevention bar 20 or the fall prevention tool 18 at which such stored items can be easily operated is hereinafter referred to as a retracted position.
In the box 10 as described above, the fall prevention tool 18 is normally fixed at the retracted position shown in the figure, and when the chemical bottle or the like falls due to an earthquake or the like, the fall prevention bar 20 is placed in the box 10. Prevents items such as chemical bottles from falling from falling and moved to a position where the removal of the items is blocked (hereinafter referred to as the shielding position), preventing the inconvenience of chemical bottles placed on the shelf from dropping out There is a need to.

  Therefore, in the above prior art, a horizontal elongated hole 17 and an arc-shaped elongated hole 22 centering on the right end of the elongated hole 17 are formed in the fall prevention tool 18 so that the pin 14 is connected to the elongated hole 17. The pin 28 inserted and fixed to the box 10 is inserted into a horizontal cutout 24 formed at the end of the arc-shaped elongated hole 22. In this case, in the state where the pin 14 is at the left end of the long hole 17 and the pin 28 is engaged with the notch 24 as shown in the figure, the fall prevention tool is engaged with the notch 24 of the pin 28. 18 cannot rotate around the pin 14. That is, it is fixed at the retracted position.

From this state, when the fall prevention device 18 shifts to the left due to vibration such as an earthquake, the pin 17 moves to the right end of the long hole 17 and the pin 28 enters the arc-shaped long hole 22. The pin 18 can be rotated within a range in which the pin 28 can move in the long hole 22 around the pin 14. The fall prevention tool 18 and the fall prevention bar 20 are rotated to the shielding position by the clockwise biasing force that is always applied to the fall prevention tool 18 to prevent the medicine bottle or the like from falling.
Japanese Patent Laid-Open No. 2001-037567

As described above, the stored item fall prevention device described in Patent Document 1 or the like has an inexpensive mechanical configuration, and moves the fall prevention bar 20 to the shielding position when receiving vibration due to an earthquake or the like. It is an excellent device in that it can prevent the fall of the.
However, in this technique, when the fall prevention tool 18 is vibrated in a direction perpendicular to the fall prevention bar 20 (front-rear direction of the box 10) by vibration such as an earthquake, the fall prevention tool 18 is The pin 28 and the notch 24 are disengaged by moving, and the fall prevention bar 20 is moved to the shielding position to prevent the article from falling, but the excitation direction is the direction along the fall prevention bar 20 If it is (in the lateral direction of the box 10), the fall prevention tool 18 cannot be moved in a direction in which the pin 28 is removed from the notch 24, so that the fall prevention function is not exhibited.
The lateral vibration of the box body 10 as described above is less likely to drop the articles on the shelf than the longitudinal vibration, but the lateral direction of the box body that is actually an example of a storage shelf. As the chemical bottles fall down due to the vibration to the container, and the fallen bottles fall from the take-out part, the above-mentioned function to prevent the articles from falling in response to the lateral vibration of the box is necessary. is there.
Such a fall prevention function is provided with an acceleration sensor for detecting the lateral acceleration of the box in addition to the drop prevention device for the longitudinal vibration of the box as described in Patent Document 1, If an actuator for moving the fall prevention device 18 to the left in response to the occurrence of lateral vibration is provided, the fall prevention device 18 can be applied regardless of whether the box body is vibrated in the front-rear direction or the lateral direction. Can be rotated to the shielding position, but adding such an acceleration sensor or actuator increases the price of the device and is not desirable.
Accordingly, an object of the present invention is to move the stored item fall prevention member to the shielding position in response to the lateral vibration as well as the longitudinal vibration of the storage shelf including the box. The device is to provide a simple device with few components.

In order to solve the above-mentioned problems, a stored item fall prevention device according to the present invention is provided on a storage shelf and shields the removal of an article stored in the storage shelf, and retracts from the shield position to block the removal of the article. In a stored item fall prevention apparatus comprising a swinging member that is rotatable between a retreating position and a swinging member that rotates to the shielding position in response to a shake caused by an earthquake or the like, the pivot axis of the swinging member It is configured as a stored item fall prevention device comprising a swinging direction change transmitting means for converting a direction of movement force into a rotating direction and transmitting it to the swinging member.
In the present invention, sensitivity adjusting means for adjusting the stop position of the rocking member at any time can be further provided.
Further, the swing direction change transmission means is constituted by a slope portion attached to the storage shelf, and the slope portion swings by vibrating in a direction perpendicular to the rotation surface of the swing member. It is also possible to configure so that the member is pushed and swung.
Further, the swing direction conversion transmitting means is constituted by a rotating means for converting the motion force in the rotational axis direction of the swing member into the rotational direction and transmitting the rotational force to the swing member, It is also conceivable that the moving direction conversion transmitting means is constituted by a release wire that converts the movement force in the direction of the rotation axis of the swinging member into the rotating direction and transmits it to the swinging member.

As described above, the present invention is provided between the shielding position provided on the storage shelf and blocking the removal of the article stored in the storage shelf, and the retreat position retracting from the shielding position and not blocking the removal of the article. In a stored item fall prevention device comprising a swinging member that is freely movable and rotates to the shielding position in response to a shake due to an earthquake or the like, the movement force in the direction of the rotation axis of the swinging member It is configured as a stored item fall prevention device provided with a swinging direction changing transmission means for converting to a swinging member and transmitting it to the swinging member.
Therefore, the stored item fall prevention device according to the present invention can prevent the stored items from falling in response to the lateral vibration of the storage shelf with the simple configuration of the swing direction conversion transmission means, which is extremely economical. It is.

  In the present invention, if further provided with a sensitivity adjusting means for adjusting the stop position of the swinging member at all times, the length of the fall prevention bar described later in accordance with the change in the length of the storage shelf (and hence the fall prevention bar). Even when the rotation sensitivity of the swinging member changes due to a difference in the weight of the swinging member), the sensitivity of the swinging member rotation can be freely set to accurately respond.

  In addition, as described above, the swing direction change transmission means is constituted by a slope portion attached to the storage shelf, and the slope portion is vibrated in a direction perpendicular to the rotation surface of the swing member. If the part is configured to swing by pushing the swinging member, it will be possible to prevent the fall of the stored item with a simple structure by simply providing a wedge-shaped slope part. Economical.

  Further, the swing direction conversion transmitting means is constituted by a rotating means for converting the motion force in the rotational axis direction of the swing member into the rotational direction and transmitting the rotational force to the swing member, It is also conceivable that the moving direction conversion transmitting means is constituted by a release wire that converts the movement force in the direction of the rotation axis of the swinging member into the rotating direction and transmits it to the swinging member. With these configurations, the lateral swing of the storage shelf can be accurately transmitted to the swing member, so that the stored items can be reliably prevented from falling.

Hereinafter, a specific embodiment of the stored item fall prevention device according to the present invention will be described with reference to the drawings.
2 is a perspective view showing the overall configuration of the stored item fall prevention device according to the embodiment of the present invention (showing a state in which the fall prevention device prevents the medicine bottle from dropping), and FIG. The perspective view which shows the state which removed the cover in the normal state which is not detecting the earthquake with the fall prevention apparatus concerning embodiment, FIG. 4 is the cover in the normal state where the earthquake is not detected with the fall prevention apparatus concerning the embodiment FIG. 5 is a front view showing a state in which a cover is removed in a state in which the fall prevention device according to the embodiment detects an earthquake and prevents a chemical bottle or the like from dropping. 6 is a perspective view of a swinging member used in the fall prevention device according to the embodiment, FIG. 7 is a perspective view of a single vertical wall shown in FIG. 3, and FIG. 8 is a swinging member shown in FIG. FIG. 9 is a perspective view showing the positional relationship between the surface and the slope. FIG. 10 is a diagram showing a main part of the stored item fall prevention device according to the first embodiment, and FIG. 11 is a diagram showing a main part of the stored item fall prevention device according to the second embodiment. 12A and 12B are diagrams showing details of the moving block 102, where FIG. 12A is a front view, FIG. 12B is a side view, FIG. 12C is a bottom view taken along the line BB in FIG. FIG.

As shown in FIG. 2, the fall prevention device 60 includes device casings 64, 64 provided at the left and right ends in the longitudinal direction of the storage shelf 62, and a swing member that protrudes swingably from the device casing 64. This is similar to the conventional anti-drop device disclosed in Patent Document 1 in that it includes an oscillating arm 66 as an example and a drop-preventing bar 68 that connects the tip ends of the left and right oscillating arms 66. is there.
In FIG. 2, both the swing arm 66 at the retracted position and the swing arm 66 at the shielded position are depicted, but this is a virtual one. Can reciprocate between.
Further, as shown in FIG. 3, the swing arm 66 is swingably provided on a support shaft 72 provided horizontally on the vertical wall 70 of the device casing 64, and is integral with the weight portion 74. As is apparent from FIG. 3, a part of the peripheral surface of the support shaft 72 is cut in a plane (so-called D-cut, and this plane cut portion is referred to as 72c). As shown in FIGS. 3 and 4, a U-shaped cut portion 72 b into which the flat cut portion 72 c of the support shaft 72 can be fitted is formed in the support hole 72 a of the weight portion 74 that is loosely fitted. The plane cut part 72c is a vertical surface.
As shown in FIGS. 3 and 7, a guide block 88 in which a horizontal guide hole 86 is formed parallel to the vertical wall 70 is fixed to the vertical wall 70 constituting the device casing 64.
As shown in FIGS. 3 and 4, a horizontal screw shaft 90 is attached to the guide hole 86 so as to be rotatable around the central axis at the unthreaded portion 96.
The head portion 92 of the screw shaft 90 faces an opening 94 formed in the side wall of the device casing 64 and can be rotated by a screwdriver inserted from the opening 94.
Retaining rings 98 and 98 are fixed to both ends of the unthreaded portion 96 of the screw shaft 90, and the screw shaft 90 can be rotated by screwing, but is relatively horizontal to the vertical wall 70 ( It is configured so that it cannot advance or retreat in the direction of the central axis.
The threaded portion 100 formed on the threaded shaft 90 is screwed with the threaded portion 100, so that the threaded shaft 100 rotates in the direction of the central axis of the threaded shaft 90 (horizontal parallel to the vertical wall 70). A moving block 102 that is moved in the direction) is attached.
The moving block 102 is interlocked with a slide piece 78 slidable in the horizontal direction along the long hole 82.
Refer to FIG. 12 for details of the moving block 102.
On the other hand, an abutment piece 76 is integrally formed at the end of the weight 74, and the contact piece 76 is in the normal state shown in FIG. It is in contact with the slide piece 78. The slide piece 78 is inserted into the screw shaft 90, and the screwless portion 96 is inserted into the guide hole 86 of the guide block 88 and fixed to the long hole 82. The fixing position of the slide piece 78 is the screw shaft 90. Can be changed relative to the vertical wall 70 by rotating with a screwdriver or the like.

Accordingly, the swing arm 66 is rotatable about the support shaft 72, but in the normal state shown in FIG. 3 or FIG. 4, the slide piece 78 with which the contact piece 76 contacts the contact piece 76 is provided. The inclination of the swing arm 66 changes according to the position.
In the normal state shown in FIG. 4, the counterclockwise rotation force of the swing arm 66 due to the weight of the weight portion 74 (and the contact piece 76) and the reaction due to the weight of the tip end portion of the swing arm 66 and the fall prevention bar 68. Since the rotational force in the clockwise direction is balanced in a state where the rotational force in the counterclockwise direction by the tip of the swing arm 66 and the fall prevention bar 68 is slightly won, the swing arm 66 has It stops at the retracted position in FIG. 4 where it does not block the removal of the article that has come slightly below the bottom surface of the storage shelf 62.
From this position, when a force that sways in the horizontal direction in the direction parallel to the paper surface of FIG. 4 (the front-rear direction of the storage shelf 62) is applied due to an earthquake or the like, the support shaft 72 is swayed in that direction. If even a slight amount of clockwise rotation about the support shaft 72 occurs, the balance between the clockwise and counterclockwise rotational forces is lost. Once this balance is lost and the weight portion 74 is rotated clockwise, the swing arm 66 continues to rotate clockwise, and eventually the fall prevention bar 68 is moved to the shielding position shown in FIG. To rise.
At this time, as a result of the positions of the plane cut portion 72c constituting the vertical surface and the U-shaped cut portion 72b formed on the peripheral surface of the support hole 72a being coincident, the plane cut portion 72c fits into the U-shaped cut part 72b. That is, the swing arm 66 moves downward as much as the flat cut portion 72c fits in the U-shaped cut portion 72b. Since the swing arm 66 cannot be rotated by fitting the flat cut portion 72c into the U-shaped cut portion 72b, the fall prevention bar 68 is a shield that blocks the removal of the article stored in the storage case. It is fixed at the position, and the fall of the medicine bottle or the like on the storage shelf 62 from the storage shelf 62 is surely prevented.
At this time, how much vibration is applied and the swing arm 66 starts to rotate in the clockwise direction in FIG. 4 depends on whether the swing arm 66 rotates in the clockwise direction as described above. Is determined by the balance between the rotational moment of and the counterclockwise rotational moment. The rotational moment is determined depending on which rotational position the swing arm 66 is in when it is normal.
Further, as shown in FIG. 12, the moving block 102 has guide pins 102d which are fitted in a horizontal guide groove 70a formed in the vertical wall 70 and guide the moving block 102 in the horizontal direction.
Further, a guide piece 102e is provided on the back surface of the slope portion 102a so as to be fitted in a horizontal guide groove 70a formed in the vertical wall 70 and horizontally guide the moving block 102 so as not to tilt.
Therefore, the sensitivity of the swing arm 66 is determined by the position of the slide piece 78 that determines the rotation position of the swing arm 66 in a normal state. In this embodiment, the position of the slide piece 78 is as described above. Since the adjustment is possible by rotating the screw shaft 90 by a screwdriver or the like, the sensitivity of the swing arm 66 to vibration such as an earthquake is adjusted in this way.

Since the vertical wall 70 of the device casing 64 is provided in the front-rear direction of the storage shelf 62 and the swing arm 66 is rotatable in the front-rear direction of the storage shelf 62, the storage shelf 62 is This is a configuration and operation when the apparatus is sensitive to vibrations in the longitudinal direction.
In the above configuration, as apparent from the above, it does not act positively on the lateral vibration of the storage shelf 62. However, in the stored item fall prevention device according to this embodiment, the storage shelf is described as follows. It is configured to be sensitive to 62 lateral vibrations.

In this embodiment, in order to rotate the swing arm 66 in response to the lateral vibration of the storage shelf 62, in this embodiment, the motion force in the rotation axis direction of the swing arm 66 is applied to the swing arm 66. Oscillating direction converting and transmitting means for converting to a rotating direction and transmitting to the oscillating arm 66 is provided.
In particular, in the embodiment described below, the swing arm 66 itself attached to the support shaft 72 via some backlash, or the wall itself fixed to the storage shelf is rotated by the earthquake or the like. It is characterized in that when it swings in the direction of the central axis, it interferes and converts the swing into a rotational motion of the swing arm 66.

Further, a horizontal long hole (not shown) parallel to the long hole 82 is formed in a wall (not shown) opposed to the vertical wall 70, and a wedge member as shown in FIG. 3 is formed in the long hole. 102b is slidably attached with some friction, and on the surface of the wedge member 102b that faces the weight portion 74, a slope portion 102a that faces the corner portion 74a of the weight portion 74 is formed. ing.
Therefore, when the wedge member 102b is slid, the contact between the slope portion 102a and the corner portion 74a of the weight portion 74 is adjusted. The significance of this adjustment will be described later.

  In addition, in order to make the contact | abutting with the slope part 102a smooth the surface facing the said slope part 102a of the said corner | angular part 74a. A rounded R surface is desirable.

In the above-described configuration, as shown in FIG. 9, when the vibration in the lateral direction of the storage shelf 62 indicated by the arrow Z (perpendicular to the rotation surface of the swing arm 66) is transmitted, the weight portion 74 is Based on the play (play) of the support hole 72a, the storage shelf 62 swings in the horizontal direction (arrow Z direction) relative to the vertical wall 70. Since this is a relative swing, it can be said that the vertical wall 70 swings the storage shelf 62 laterally with respect to the weight portion 74, and accordingly, the weight portion 74 swings sideways.
When the storage shelf 62 is shaken in the lateral direction, the corner 74a of the weight portion 74 collides with the slope portion 102a of the wedge portion 102b. Due to this collision, the weight portion 74 receives a force in the direction of arrow Y that tends to urge the weight portion 74 in the rotational direction of the swing arm 66 based on the inclination angle of the slope portion 102a. Therefore, if the inclination direction of the inclined surface portion 102a is set to the direction in which the swing arm 66 is to be rotated in the clockwise direction in FIG. 4, the swing arm 66 is moved to the swing arm 66 by vibration such as an earthquake. When a force in a direction perpendicular to the pivot surface of 66 (ie, a force in the direction of the pivot center axis of the swing arm 66) is applied, the direction of swing motion of the weight portion 74 (or vertical wall 70) (ie, the vertical wall 70). , The direction of the pivot axis of the swing arm 66) is converted into the swing direction of the swing arm 66 and transmitted to the swing arm 66, and the swing arm 66 rotates clockwise in FIG. As a result, the fall prevention bar 68 moves to the shielding position for preventing the fall of the stored item, and prevents the fall of the stored item.

In the embodiment described above, turning force is applied to the swing arm 66 when the corner portion 74a of the weight portion 74 collides with the slope portion 102a due to vibration such as an earthquake, and the fall prevention bar 68 prevents the stored item from dropping. Move to a blocking position to prevent it from falling.
Therefore, if the contact amount between the slope portion 102a and the corner portion 74a is small and the two do not collide strongly despite the occurrence of an earthquake, the swing arm 66 is not sensitive and does not rotate. On the contrary, if the slope portion 102a and the corner portion 74a are always in close contact with each other, the swinging arm 66 is sensitive to even a slight vibration such as a person touching the storage shelf 62. Each time the fall prevention bar 68 moves to a shielding position that prevents the fall of the stored items, the operator is obstructed to take out the medicine bottle B or the like. This hinders work efficiency.
Therefore, in this embodiment, as described above, by moving the wedge member 102b having the inclined surface portion 102a and adjusting the contact amount between the inclined surface portion 102a of the wedge member 102b and the corner portion 74a of the weight portion 74, The swing arm 66 is configured to be able to adjust the sensitivity to earthquakes.
That is, the wedge member 102b having the slope portion 102a is an example of the sensitivity adjusting member in the present invention.
As described above, in this embodiment, the swing arm 66 rotates in response to any vibration in the front-rear direction or the lateral direction of the storage shelf 62, and the function of preventing the fall of the stored items is exhibited. It is understood that

  Next, the direction of the swing motion of the swing arm 66 in the direction perpendicular to the rotation surface of the swing arm 66 (in the direction of the rotation center axis of the swing member 66) is converted into the rotation direction of the swing arm 66. An embodiment in which the swing direction change transmitting means for transmitting to the swing arm 66 is constituted by a rotating means rotating by vibration such as an earthquake will be described with reference to FIG. 10 corresponding to FIG.

As shown in FIG. 10, in this embodiment, a right angle arm 112 (an example of a rotating means) that can be rotated in a horizontal plane around a fulcrum 110 is employed.
The right-angle arm 112 includes a first arm 112c having an end 112a disposed close to the end 74b of the weight portion 74, and a right angle extending from the fulcrum 110 with respect to the first arm 112c. The second arm 112d has a weight W fixed to the end 112b.
According to such a configuration, as in FIG. 9, when a vibration in the perpendicular direction is applied to the swing arm 66 whose main component is the weight portion 74 and the swing arm 66 indicated by the arrow Z in the drawing, Since 110 is swung in the arrow Z direction, the weight W is swung in the same direction due to this vibration. By swinging the weight W, the right angle arm 112 is rotated in the direction of the arrow X1 (= X2) shown in the figure, and the end 112a of the first arm 112c collides with the end 74b of the weight 74 to push it. The swing arm 66 is rotated in the clockwise direction in FIG. 4, and the fall prevention bar 68 and the swing arm 66 integrated therewith are moved to the shielding position and fixed.
Note that the second arm 112d of the right-angle arm 112, which is an example of the rotating means used in this embodiment, and the weight W attached to the tip of the second arm 112d are shown in FIG. If it is provided in a direction of 45 degrees with respect to (indicated by Y) (indicated by 112d 'and W'), even if the direction of vibration such as an earthquake is the lateral direction of storage shelf 62 (indicated by arrow Z) Even in the front-rear direction of the storage shelf 62 that is perpendicular to this, the right-angle arm 112 is swung in the direction of the arrow X1 or X2 based on these vibrations, and the weight 74 and this are rotated to shield. Since it moves to a position, the single right-angle arm 112 can cope with vibrations in any direction and has high sensitivity. Therefore, it is possible to provide a stored item fall prevention device that is inexpensive and highly practical.

In the first embodiment, the rotating means such as the right angle arm 112 constitutes the swing direction changing / transmitting means. However, in the second embodiment, the release wire 122 is swung direction changing / transmitting means as described below. This constitutes an example.
That is, as shown in FIG. 11 corresponding to FIG. 9, the release wire cylinder 120 fixed to the apparatus is bent at a right angle in the horizontal plane, and is housed in the release wire cylinder 120 and is placed in the release cylinder 120. On the other hand, a weight W is attached to one end of the slidable release wire 122.
The other end portion 122 a of the release wire 122 is set at a position close to the end portion 74 b of the weight portion 74.
In such a configuration, when a vibration in a perpendicular direction (indicated by an arrow Z) is applied to the rotation surface of the swing arm 66 having the weight portion 74 as a main component, the weight W vibrates in that direction. The other end portion 122a of the release wire 122 pushed by W collides with the end portion 74b of the weight portion 74, and the swing arm 66 is rotated and fixed to the shielding position shown in FIG.

In the first and second embodiments, since simple elements such as a rotating means and a release wire are used, it can be implemented at low cost, and vibration such as an earthquake can be reliably transmitted to the swing arm 66.
In Example 1, the sensitivity to the earthquake can be adjusted by adjusting the length of the first arm 112c or the second arm 112d.
In the first embodiment, the distance between the end portion 112a and the end portion 74b of the weight member 74 is adjusted by adjusting the position of the fulcrum 110, and in the second embodiment, the end portion 122a of the release wire 122 is adjusted. By adjusting the distance between the weight 74 and the end 74b of the weight 74, the sensitivity to the earthquake can be adjusted.

In the embodiment, the wedge member 102b shown in FIG. 3 can be directly pushed and moved by hand, or the moving block 102 shown in FIG. 12 can be moved by rotating the screw shaft 90 shown in FIGS.
When the hand is pushed and moved directly, the movement adjusts the way in which the slope portion 102a of the wedge member 102b and the corner portion 74a of the weight portion 74 are brought into contact with each other, but in order to facilitate movement of the wedge member 102b by hand. In addition, as shown in FIG. 8, it is also effective to form jagged irregularities 102f for preventing slipping of the hand on the handle 102c for moving the wedge member 102b so that the hand does not slip.

The side view of the stored item fall prevention apparatus disclosed by patent document 1. FIG. The perspective view which shows the whole structure of the stored item fall prevention apparatus concerning one Embodiment of this invention (The state which the fall prevention apparatus is preventing the fall of a chemical | medical agent bottle) is shown. The perspective view which shows the state which removed the cover in the normal state which is not detecting the earthquake with the fall prevention apparatus concerning one Embodiment of this invention. The front view which shows the state which removed the cover in the normal state which is not detecting the earthquake with the fall prevention apparatus concerning one Embodiment of this invention. The front view which shows the state which removed the cover in the state which has detected the earthquake with the fall prevention apparatus concerning one Embodiment of this invention, and has prevented fall, such as a chemical bottle. The perspective view of the rocking | swiveling member used for the fall prevention apparatus concerning one Embodiment of this invention. The perspective view of the vertical wall single-piece | unit shown in FIG. The perspective view which shows the positional relationship of the rocking | swiveling member and slope part shown in FIG. The AA arrow directional view in FIG. The figure which shows the principal part of the stored item fall prevention apparatus which concerns on Example 1. FIG. The figure which shows the principal part of the stored item fall prevention apparatus which concerns on Example 2. FIG. It is a figure which shows the detail of the movement block 102, (a) is a front view, (b) is a side view, (c) is a BB bottom view of (a), (d) is a perspective view.

Explanation of symbols

60 ... fall prevention device 62 ... storage shelf 64 ... device casing 66 ... swing arm 68 ... fall prevention bar 70 ... vertical wall 72 ... support shaft 72a ... support hole 72b ... U-shaped cut portion 72c ... plane cut portion 74 ... weight Part 74a ... Corner 74b ... End 76 ... Contact piece 78 ... Slide piece 82 ... Long hole 84 ... Screw 86 ... Guide hole 88 ... Guide block 90 ... Screw shaft 94 ... Opening 96 ... Unthreaded part 98 ... Retaining ring 100 ... Screw part 102 ... Moving block 102a ... Slope part 110 ... fulcrum 112 ... right angle arm 112a ... end part 112b ... end part 112c ... first arm 112d ... second arm 120 ... release wire cylinder 122 ... release wire 122a ... end part X , Y, Z ... arrows

Claims (5)

It is provided on the storage shelf and can be rotated between a shielding position that blocks the removal of the articles stored in the storage shelf and a retreat position that retracts from the shielding position and does not block the removal of the articles. In a stored item fall prevention device comprising a swinging member that rotates in response to the shielding position,
Oscillating direction converting and transmitting means for converting the motive force of the oscillating member in the direction of the axis of rotation into the oscillating direction and transmitting it to the oscillating member
A fall prevention device for stored items.   2. The stored item fall prevention apparatus according to claim 1, further comprising a sensitivity adjusting means for adjusting a stop position of the swinging member at all times.   The swing direction conversion transmission means is constituted by a slope portion fixed to the storage shelf, and the slope portion oscillates in a direction perpendicular to the rotation surface of the swing member so that the slope portion changes the swing member. The stored item fall prevention device according to claim 1, wherein the device is configured to be pushed and swung.   3. The oscillating direction converting and transmitting means is constituted by a rotating means for converting a motive force of the oscillating member in the direction of the axis of rotation into a rotating direction and transmitting it to the oscillating member. The stored item fall prevention device according to claim 1.   3. The swinging direction converting and transmitting means is constituted by a release wire that converts a moving force in a rotational axis direction of the swinging member into a rotating direction and transmits the rotational force to the swinging member. The stored item fall prevention device according to claim 1.

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