JP5204004B2 - Article fall prevention structure - Google Patents

Article fall prevention structure Download PDF

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JP5204004B2
JP5204004B2 JP2009043863A JP2009043863A JP5204004B2 JP 5204004 B2 JP5204004 B2 JP 5204004B2 JP 2009043863 A JP2009043863 A JP 2009043863A JP 2009043863 A JP2009043863 A JP 2009043863A JP 5204004 B2 JP5204004 B2 JP 5204004B2
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article
magnet
fall prevention
shelf
magnetic material
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JP2010194157A (en
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時男 松浦
秀晃 石橋
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Nanbu Plastics Co Ltd
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Nanbu Plastics Co Ltd
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Description

本発明は、地震の揺れで物品が棚から落下するのを防止させる物品の落下防止構造に関する。   The present invention relates to an article fall prevention structure that prevents an article from falling from a shelf due to an earthquake.

従来、物品の落下防止機構として、棚板の巾とほぼ同じ幅を有する前面囲い部と、前記前面囲い部の両端に腕状に設けられ側面囲い部とを有し、前記側面囲い部の先端を支点として回動自在に支持された可動囲み体と、常時は前記側面囲い部が略垂直に位置するように係止すると共に、所定の大きさの振動が発生したときに前記が開放されるように前記囲み体を保持し、前記振動が発生したとき前記係止が開放されて前記可動囲み体が転倒したときには前記側面囲い部が所定の位置で停止するように前記可動囲み体を保持する保持手段を具備することを特徴とするものであって、前記可動囲み体の保持手段が磁石であるものは知られている。（例えば、特許文献１参照）   Conventionally, as an article fall prevention mechanism, it has a front enclosure having substantially the same width as the width of the shelf, and a side enclosure provided in an arm shape at both ends of the front enclosure, and the tip of the side enclosure And a movable enclosure that is supported so as to be pivotable with respect to the fulcrum, and the side enclosure is normally locked so as to be positioned substantially vertically, and is opened when a predetermined amount of vibration occurs. The enclosure is held in such a manner that when the vibration occurs, the lock is released and the movable enclosure is held down so that the side enclosure is stopped at a predetermined position. It is known that a holding means is provided, and the holding means of the movable enclosure is a magnet. (For example, see Patent Document 1)

上記落下防止機構は、可動囲み体のコ字状部材１０が側面囲い部としての２つの腕部１４ａ、１４ｂの先端を固定金具へ軸着され、両腕部の後側には固定金具６０ａへ固定した磁石３０を腕部１４ａ、１４ｂと面接触するように配置されている。従って、棚を前後に揺らす地震が発生するときだけは、腕部１４ａ、１４ｂが軸を中心に前後へ回動されて磁石３０から離れ、コ字状部材１０を転倒させるため、前面囲い部としてのガイドバー１２が棚の前側へ移動して物品の落下防止する機能を果すことは認められる。しかしながら、棚を上下に揺らす地震や、左右に揺らす地震が発生するときは、腕部１４ａ１４ｂと磁石３０は同体移動して離脱を生ずることがないので、上下や左右に揺れる地震に対しては落下防止の機能が得られないという問題点があって実用化されるに至っていない。   In the fall prevention mechanism, the U-shaped member 10 of the movable enclosure has the ends of the two arms 14a and 14b serving as side enclosures pivotally attached to the fixture, and the rear of both arms leads to the fixture 60a. The fixed magnet 30 is disposed so as to be in surface contact with the arm portions 14a and 14b. Therefore, only when an earthquake that swings the shelf back and forth occurs, the arm portions 14a and 14b are rotated back and forth around the axis to move away from the magnet 30 and cause the U-shaped member 10 to fall down. It is recognized that the guide bar 12 of the present invention moves to the front side of the shelf and functions to prevent the articles from falling. However, when an earthquake that shakes the shelf up and down or an earthquake that shakes left or right occurs, the arm portion 14a14b and the magnet 30 do not move together and do not come off, so it falls for an earthquake that shakes up and down or left and right. It has not been put into practical use due to the problem that the prevention function cannot be obtained.

特開平８−２６６３５３号公報JP-A-8-266353 特開平８−２６６３５３号公報JP-A-8-266353

本発明が解決しようとする問題点は、従来、物品の落下防止機能が特定の方向の地震の揺れに対してしか発揮されない点である。   The problem to be solved by the present invention is that, conventionally, the function of preventing an article from falling is only exerted against the shaking of an earthquake in a specific direction.

本発明は、地震の揺れ方向には関係なく、物品の落下防止部材がこれを保持する磁石から離れて、棚の前側へ移動し物品の落下を防止する機能を一様に確実に果たすことを特徴としている。   The present invention ensures that the function of preventing the fall of the article by moving the article fall prevention member away from the magnet holding the article to the front side of the shelf and preventing the fall of the article regardless of the direction of the earthquake. It is a feature.

請求項１〜３に係る発明の効果 物品の落下防止部材を、物品の出し入れを妨げない上方に保持する磁石が、小面積の吸着部の周囲に外側が次第に高くなる非磁性材の離脱用斜面を巡らし設けられており、物品の落下防止部材は案内部材に前後、上下、左右の遊動が許容されるように支持されて、磁石に対応する部分には小面積の頂部で磁石に接する山形の磁性材を取り付けられているから、棚から収納物品が落下する程度の揺れの地震が発生すると、揺れの方向如何に関らず物品の落下防止部材は、これに付設した磁性材が磁石から離れる運動を確実に起こして、この運動の方向が磁石の吸着部と平行するため、通常は磁性材が磁石に吸い付けられて横滑りし、磁石から離れない場合でも、横滑りで磁性材の頂部が離脱用斜面に乗り上げて磁石から離されるので、物品の落下防止部材は揺れの方向に関係なく待機位置から物品を受け止める位置へ確実に降下し、この位置に保持されて棚からの物品の落下防止を一様に行うという画期的な機能を発揮する。 Effects of Inventions According to Claims 1 to 3 A magnet for holding an article fall prevention member upward so as not to prevent the article from being taken in and out is a slope for detachment of a non-magnetic material whose outer side gradually increases around a small area adsorbing portion. The article fall prevention member is supported by the guide member so that back and forth, up and down, left and right movements are allowed, and the portion corresponding to the magnet is a chevron that touches the magnet at the top of a small area. Since the magnetic material is attached, when an earthquake that swings to the extent that the stored item falls from the shelf occurs, the magnetic material attached to the member fall prevention member will be separated from the magnet regardless of the direction of the swing. Since the movement is surely caused and the direction of this movement is parallel to the magnet's attracting part, normally the magnetic material is attracted to the magnet and skids, and even if it does not leave the magnet, the skidding causes the top of the magnetic material to disengage. Magnet on the slope Because it is separated from the stone, the article fall prevention member reliably descends from the standby position to the position for receiving the article regardless of the direction of shaking, and is held at this position to uniformly prevent the article from falling from the shelf. Demonstrate innovative features.

請求項１に係る発明の効果は、磁石の吸着部の外側に巡らし設けられた非磁性材の離脱用斜面を複数に分割形成すると、これら斜面を均等に内外へ移動させると、磁石における吸着部の面積が増減して、地震の揺れが棚から物品の脱落を起こす程度の以上の場合、磁性材が上記離脱用斜面へ係合して、物品の落下防止部材を確実に降下させるようにすることができる。 The effect of the invention according to claim 1 is that when the slopes for detaching the non-magnetic material provided around the magnet attracting part are divided into a plurality of parts and the slopes are uniformly moved in and out, the magnet attracting part If the area of the material increases or decreases and the shaking of the earthquake is more than enough to cause the article to fall off the shelf, the magnetic material engages with the above-mentioned detaching slope, and the article fall prevention member is surely lowered. be able to.

請求項２に係る発明の効果は、磁石の吸着部に非磁性の薄膜で形成した磁力調整部材をを取り付けると、この調整部材の厚さを加減することで地震の揺れが棚から物品の脱落を起こす程度以上の場合、磁性材を磁石の吸着部から離脱させて、物品の落下防止部材を確実に降下させることができる。 The effect of the invention according to claim 2 is that when a magnetic force adjusting member formed of a non-magnetic thin film is attached to the attracting portion of the magnet, the thickness of the adjusting member is adjusted so that the shaking of the earthquake falls off the shelf from the shelf. In the case of more than the degree of causing the magnetic material, the magnetic material can be detached from the magnet attracting portion, and the article fall prevention member can be reliably lowered.

請求項３に係る発明の効果は、地震の揺れで待機位置から物品を受け止める位置へ降下した物品の落下防止部材は、案内溝の下端に達すると斜面に導かれて切込の下へ係合し、揺れの継続で物品の落下防止部材に跳上力が作用しても、物品の落下防止部材は切込に保持されて物品を受け止める作用を継続し、物品の落下防止機能を失うことがない。 The effect of the invention according to claim 3 is that the fall prevention member of the article lowered from the standby position to the position for receiving the article due to the shaking of the earthquake is guided to the slope when the lower end of the guide groove is reached, and is engaged under the notch. However, even if a jumping force acts on the article fall prevention member due to continued shaking, the article fall prevention member is held in the cut and continues to receive the article, and the article fall prevention function may be lost. Absent.

本発明に係る物品の落下防止構造の実施形態を示す縦断側面図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal side view illustrating an embodiment of an article fall prevention structure according to the present invention. 同上の物品の落下防止部材を磁石で待機位置に保持させる状態を示す拡大縦断正面図。The expanded vertical front view which shows the state which hold | maintains the fall prevention member of an article | item same as the above in a standby position with a magnet. 同上の物品の落下防止部材の支持部と、案内部材の案内孔の上部との遊隙の形成状態を示す説明図。Explanatory drawing which shows the formation state of the clearance gap between the support part of the fall prevention member of an article | item same as the above, and the upper part of the guide hole of a guide member. 同上の物品の落下防止部材に取り付けた磁性材の他の例を示す斜視図。The perspective view which shows the other example of the magnetic material attached to the fall prevention member of the goods same as the above. 同上の案内部材を４本支柱の棚の棚受と一体に形成した例を示す側面図。The side view which shows the example which formed the guide member same as the above with the shelf support of the shelf of four support | pillars. 同上の案内部材を２本支柱の棚の棚受と一体に形成した例を示す側面図。The side view which shows the example which formed the guide member same as the above with the shelf support of the shelf of two support | pillars. 同上の磁性材を磁石から離脱させる離脱用斜面の複数に分割形成したものを示す説明図。Explanatory drawing which shows what was divided | segmented and formed into several of the slopes for detachment | leave from which a magnetic material same as the above is separated from a magnet. 同上離脱用斜面を後退移動させた相互に離隔させた説明図。Explanatory drawing which made it separate mutually from which the slope for detachment same as the above moved backward. 同上の磁性材に取り付けて磁石の磁力を加減する磁力調整部材を示す説明図。Explanatory drawing which shows the magnetic force adjustment member attached to the magnetic material same as the above and adjusting the magnetic force of a magnet. 同上の物品の落下防止部材を物品の出し入れ可能な位置に保持された説明図。Explanatory drawing which hold | maintained the fall prevention member of the goods same as the above in the position which can take in / out goods. 同上の物品の落下防止部材を物品を受け止める位置に降下させた説明図。Explanatory drawing which lowered | hung the fall prevention member of the goods same as the above to the position which receives goods.

本発明は、磁石による物品の落下防止部材の保持が、地震の揺れ方向には関係なく確実に行われる構造を実現させるものである。   The present invention realizes a structure in which the holding of the article fall prevention member by the magnet is reliably performed regardless of the direction of shaking of the earthquake.

図1、図２において符号Ａは、本発明に係る物品の落下防止構造を示すものであり、この物品の落下防止構造Ａは、物品１を収納する棚２の下側に、常時は物品１の出し入れを妨げない上方に図１には実線で、図１０には点線で示す通り待機し、地震が発生すると案内部材３に案内されて図1には鎖線で、図１１には実線で示す通り棚口４へ降下して、物品１を受け止める物品の落下防止部材５を、上方の待機位置に磁石６で保持させる構成としてある。   In FIG. 1 and FIG. 2, symbol A indicates an article fall prevention structure according to the present invention. This article fall prevention structure A is provided on the lower side of the shelf 2 for storing the article 1 and is always the article 1. As shown in FIG. 1 by a solid line and in FIG. 10 by a dotted line, it stands by as shown by a dotted line. When an earthquake occurs, it is guided by a guide member 3 and shown in FIG. 1 by a chain line and in FIG. The article fall prevention member 5 that descends to the street shelf port 4 and receives the article 1 is held by the magnet 6 at the upper standby position.

上記棚２は、図１０、図１１に示す通り一対の棚支柱７、７に、点線で示す棚受８、８を所定の間隔で取り付けて、これら棚受８、８にそれぞれ棚２を支持させ、各棚２に多数の物品１を収納して置くのであり、地震の発生で棚２が強く揺れると、収納した物品１が落下して破損するのでこれを防止する対策が必要となる。   As shown in FIGS. 10 and 11, the shelf 2 is attached to the pair of shelf supports 7 and 7 with the shelf supports 8 and 8 indicated by dotted lines at predetermined intervals, and the shelf supports 8 and 8 are respectively supported by the shelf supports 8 and 8. A large number of articles 1 are stored and placed in each shelf 2, and if the shelf 2 is strongly shaken due to the occurrence of an earthquake, the stored articles 1 are dropped and damaged, and measures to prevent this are necessary.

上記棚２に用いる物品の落下防止部材５は、図１１に示す通り棚２の前方の開口、即ち棚口４を横切るように配置するもであって、棒材又は小幅の板材で形成し、両端には図２に示す通り支持部９を設け、この支持部９を上記案内部材３に図１に示す通り上端が上段の棚２下面へ達し、下端が棚口４の上下方向の中央付近に位置するように設けられた案内溝１０へ係合させてある。   The article fall prevention member 5 used for the shelf 2 is arranged so as to cross the opening in front of the shelf 2 as shown in FIG. 11, that is, the shelf mouth 4, and is formed of a bar or a narrow plate, As shown in FIG. 2, support portions 9 are provided at both ends, and the support portion 9 is provided on the guide member 3 with the upper end reaching the lower surface of the upper shelf 2 as shown in FIG. It is engaged with a guide groove 10 provided so as to be located at the position.

上記物品の落下防止部材５における支持部9は、案内部材３に対して上下、前後、左右の何れの方向にも遊動できなければならないので、上記支持部９と案内溝１０の上端部との間には、図３に示す通り上下の遊隙１１ａ、１１ｂと左右の遊隙１２ａ、１２ｂが存在し、上記支持部９、９に固定される後記磁性材と端板１３に挟まれる案内部材３の両側には、図２に示す通り遊隙１４ａ、１４ｂが存在するようにし、更に、上記案内溝１０の下端の一側には、図１に示す通り物品の落下防止部材５が納まる切込１５を形成し、他側には上記切込１５へ向かって上向きに傾斜することで、降下して来る物品の落下防止部材５を上記切込１５の下側へ誘導する斜面１６を形成してあり、更に、上記支持部９の磁石６に対応する部分には、図２に示す通り小面積の頂部１７で磁石６の吸着部６ａへ当たる山形ができるように球体ｃとした磁性材１８が取り付けられている。   Since the support portion 9 in the article fall prevention member 5 must be able to move freely in the vertical and forward / backward and left / right directions with respect to the guide member 3, the support portion 9 and the upper end portion of the guide groove 10 As shown in FIG. 3, there are upper and lower gaps 11 a and 11 b and left and right gaps 12 a and 12 b, and a guide member sandwiched between the post plate magnetic material fixed to the support portions 9 and 9 and the end plate 13. As shown in FIG. 2, the clearances 14a and 14b exist on both sides of the guide 3. Further, the guide groove 10 has a lower end of the guide groove 10 in which the article fall prevention member 5 is accommodated as shown in FIG. A notch 15 is formed, and an inclined surface 16 is formed on the other side so as to guide the fall preventing member 5 of the descending article to the lower side of the notch 15 by inclining upward toward the notch 15. Further, a portion corresponding to the magnet 6 of the support portion 9 is shown in FIG. A magnetic material 18 that is a sphere c is attached so that a chevron that hits the attracting part 6a of the magnet 6 at the top part 17 having a small area.

上記案内部材３、３は、図１、図３に示す通り棚２や棚受８、８とは別体に形成したものを棚２の下側へ取り付けたものを用いているが、図５に示す通り４本支柱の棚の棚受８と案内部材３を一体に成形したもの、或いは、図６に示す通り２本支柱用の棚の棚受８と案内部材３を一体成形したものを用いることができることは勿論である。   As the guide members 3 and 3, as shown in FIGS. 1 and 3, those formed separately from the shelf 2 and the shelf supports 8 and 8 are attached to the lower side of the shelf 2. As shown in FIG. 6, the shelf support 8 of the four-post shelf and the guide member 3 are integrally molded, or as shown in FIG. 6, the shelf support 8 of the two-post shelf and the guide member 3 are integrally molded. Of course, it can be used.

上記磁石６は、案内部材３の上部から内側へ張り出す取付片１９の下側へ取り付けられていて、中央部に円形か多角形かこれらと近似形をなす小面積の吸着部６ａを露出させてあり、この吸着部７の周囲には外側が次第に高くなる非磁性材の離脱用斜面２０を巡らし設けて、磁性材１８が地震の揺れで横移動すると上記離脱用斜面２０へ乗り上げて磁石６の吸着部６ａから離脱するようにしてある。   The magnet 6 is attached to the lower side of the attachment piece 19 projecting inward from the upper part of the guide member 3, and exposes a small-area adsorbing portion 6a having a circular shape, a polygon shape, or an approximate shape thereof in the center portion. Around the attracting portion 7, a slope 20 for removing a nonmagnetic material whose outer side gradually increases is provided. When the magnetic material 18 moves laterally due to an earthquake, the magnet 6 rides on the slope 20 for separation. It is made to detach | leave from the adsorption | suction part 6a.

上記非磁性材の離脱用斜面２０は、地震の揺れが棚２から物品１が脱落する程度以上の場合に、磁性材１８を磁石６の吸着部６ａから離脱させ、それ以下の場合には磁性材１８が磁石６の吸着部６ａから離脱しないように調整するものである。従って、図７に示す通り、非磁性材の離脱用斜面２０を複数個、図においては４個のイ、ロ、ハ、ニに分割形成して、同図の通りイ、ロ、ハ、ニが密着した状態では磁石６の吸着部６ａの面積が最小となり、図８示す通りイ、ロ、ハ、ニをそれぞれ矢印の方向へ移動させて相互間に隙間ができるようにすると、磁石６の吸着部６ａの面積が増加するようにしてある。   The slope 20 for detaching the non-magnetic material causes the magnetic material 18 to detach from the attracting portion 6a of the magnet 6 when the earthquake shake is more than the extent that the article 1 is dropped from the shelf 2, and when it is less, the magnetic material 18 is magnetic. It adjusts so that the material 18 may not detach | leave from the adsorption | suction part 6a of the magnet 6. FIG. Therefore, as shown in FIG. 7, a plurality of slopes 20 for separating the non-magnetic material are divided and formed into four a, b, c, and d in the figure. When the magnets 6 are in close contact with each other, the area of the adsorbing portion 6a of the magnet 6 is minimized, and as shown in FIG. The area of the adsorption part 6a is increased.

また、地震の揺れが棚２から物品１の脱落を起こさせる程度以上の場合に、磁性材１８を磁石６の吸着部６ａから離脱させ、それ以下の場合は磁性材１８を磁石６の吸着部６ａから離脱させないように調整は、磁性材１８に作用する磁石６の磁力を調整することでもできる。この場合は、図９に示す通り、磁石６の吸着部6ａに合成樹脂等の非磁材で形成した薄膜の磁力調整部材２１を貼着し、この磁力調整部材２１の厚さを加減することで、磁性材１８に作用する磁石６の磁力が適切な値となるように設定することが容易にできる。   In addition, the magnetic material 18 is detached from the attracting portion 6a of the magnet 6 when the shaking of the earthquake is more than the extent that the article 1 is dropped from the shelf 2, and the magnetic material 18 is attracted to the attracting portion of the magnet 6 in the case of less than that. Adjustment so as not to be separated from 6a can also be performed by adjusting the magnetic force of the magnet 6 acting on the magnetic material 18. In this case, as shown in FIG. 9, a thin-film magnetic force adjusting member 21 formed of a non-magnetic material such as a synthetic resin is attached to the attracting portion 6a of the magnet 6, and the thickness of the magnetic force adjusting member 21 is adjusted. Thus, it is easy to set the magnetic force of the magnet 6 acting on the magnetic material 18 to an appropriate value.

上記の通り球体ｃをなす磁性材１８は、図２に示す物品の落下防止部材５の支持部９を嵌合する孔２２をあけ、この孔２２を支持部９へ嵌合することで物品の落下防止部材５を固定すれば、球体ｃの最大直径部の全周の各所が磁石６の吸着部６ａへ当たる小面積の頂部１７となるので、物品の落下防止部材５を無造作に押し上げても、磁性材１８の何れの部分が磁石６の吸着部6ａへ当たって吸着される便利がある。しかし、磁性材１８は、図４に示す通り直方体ｄの上部に小面積の円形、多角形かこれらと近似形の頂部１７を有する山形に形成して、直方体ｄにあけた孔２２を上記支持部９に嵌合固定しても、物品の落下防止部材５を磁性材１８が上方に位置するよう持って磁石６へ近付ければ、磁性材１８の頂部１７が磁石６に吸着されて物品の落下防止部材５を待機位置に保持する機能を果たす。   As described above, the magnetic material 18 forming the sphere c has a hole 22 for fitting the support portion 9 of the article fall prevention member 5 shown in FIG. If the fall prevention member 5 is fixed, each part of the circumference of the maximum diameter part of the sphere c becomes a small area top part 17 which hits the attracting part 6a of the magnet 6, so that even if the article fall prevention member 5 is pushed up randomly, Any part of the magnetic material 18 is convenient to be attracted to the attracting portion 6a of the magnet 6. However, as shown in FIG. 4, the magnetic material 18 is formed in a mountain shape having a small-area circular, polygonal shape or an approximate top portion 17 on the upper part of the rectangular parallelepiped d, and supports the hole 22 formed in the rectangular parallelepiped d. Even if it is fitted and fixed to the portion 9, if the article fall prevention member 5 is held close to the magnet 6 with the magnetic material 18 positioned above, the top 17 of the magnetic material 18 is attracted to the magnet 6 and the article It fulfills the function of holding the fall prevention member 5 in the standby position.

上記構成の物品の落下防止構造Ａは、物品の落下防止部材５を図１に示す通り案内部材３に設けられた案内溝１０に添って上方へ移動させ、磁性材１８の頂部１７を磁石６の吸着部6ａに近付けると磁性材１８は磁石６に吸い着けられて物品の落下防止部材５を物品１の出し入れを妨げない待機位置に保持している。   The article fall prevention structure A configured as described above moves the article fall prevention member 5 upward along the guide groove 10 provided in the guide member 3 as shown in FIG. The magnetic material 18 is attracted by the magnet 6 when it is close to the attracting portion 6a, and holds the article fall prevention member 5 in a standby position that does not prevent the article 1 from being taken in and out.

しかし、棚２に収納した物品１が落下する程度の揺れの地震が起こると、物品の落下防止部材５の支持部９と、案内部材３に設けられた案内溝１０の上部との間には、図３に示す通り上下の遊隙１1ａ、１1ｂと、前後の遊隙１２ａ、１２ｂ及び図２に示す通り左右の遊隙１４ａ、１４ｂが存在するため、物品の落下防止部材５は、揺れの方向へ動いて磁石６の吸着部６ａに吸い着けられて磁性材１８の頂部１７が、上下揺れの場合は吸着部6ａから揺れにより引き離され、前後、左右の揺れの場合は、磁性材１８の頂部１７は磁石６の吸着部６ａに吸い着けられたまま横滑りするが、吸着部６ａの周囲には外側程高くなるように巡らし設けられた離脱用斜面２０があるため、この斜面２０へ乗り上げて頂部１７を磁石６の吸着部6ａから押し離されるので、物品の落下防止部材５は棚口４の物品１を受け止める位置へ降下し、これに伴い斜面１６が支持部９を切込１５へ係合させて、上方への揺れが起こっても、物品の落下防止部材５を物品１を受け止める位置に止め置いて、棚２から物品１が落下するのを防止する機能をあらゆる方向の揺れに対して一様に確実に果たすものである。   However, when an earthquake that swings to such an extent that the article 1 stored in the shelf 2 falls, there is a gap between the support portion 9 of the article fall prevention member 5 and the upper portion of the guide groove 10 provided in the guide member 3. 3, there are upper and lower gaps 11a and 11b, front and rear gaps 12a and 12b, and left and right gaps 14a and 14b as shown in FIG. The magnetic material 18 is attracted to the attracting portion 6a of the magnet 6 and the top portion 17 of the magnetic material 18 is pulled away from the attracting portion 6a in the case of up-and-down swinging. The top portion 17 slides while being attracted by the attracting portion 6a of the magnet 6. However, since there is a separating slope 20 provided around the attracting portion 6a so as to increase toward the outside, The top portion 17 is pushed away from the attracting portion 6a of the magnet 6. Therefore, even if the fall prevention member 5 of the article descends to a position for receiving the article 1 in the shelf opening 4 and the inclined surface 16 engages the support portion 9 with the notch 15 along with this, the upward swinging occurs. The function of preventing the article 1 from dropping from the shelf 2 is reliably and uniformly performed against shaking in any direction by stopping the article fall prevention member 5 at a position for receiving the article 1.

本発明に係る物品の落下防止構造は、棚に収容した物品が落下する程度の地震が発生すると、その揺れ方向には関係なく、物品の落下防止部材が磁石から外れて物品を受け止める位置に移動して、物品の落下防止を一様に確実に行う離脱防止構造の実用化が可能となる。   The article fall prevention structure according to the present invention moves to a position where the article fall prevention member is detached from the magnet and receives the article regardless of the direction of shaking when an earthquake occurs to the extent that the article stored in the shelf falls. Accordingly, it is possible to put into practical use a separation preventing structure that uniformly and reliably prevents the article from falling.

Ａ 物品の落下防止構造
１ 物品
２ 棚
３ 案内部材
４ 棚口
５ 物品の落下防止部材
６ 磁石
６ａ 吸着部
１７ 頂部
１８ 磁性材
２０ 離脱用斜面 A Article fall prevention structure 1 Article 2 Shelf 3 Guide member 4 Shelf opening 5 Article fall prevention member 6 Magnet 6a Adsorbing portion 17 Top portion 18 Magnetic material 20 Detachment slope

Claims (3)

物品を収納する棚に、常時は物品の出し入れを妨げないように上方に待機し、地震が発生すると案内部材に案内されて棚口へ降下し、物品を受け止める物品の落下防止部材を、上方の待機位置に磁石で保持させる物品の落下防止構造であって、
上記磁石は、円形か多角形これらと近似形の小面積の吸着部の周囲に、外側が次第に高くなる非磁性材の離脱用斜面を巡らし設けられており、
上記物品の落下防止部材は、案内部材に前後、上下、左右の遊動が許容されるように支持されて、上記磁石に対応する部分には、小面積の頂部で磁石に接する山形の磁性材を取り付けられており、
上記非磁性材の離脱用斜面を複数個に分割形成して、各々を均等に内外へ移動させると磁石の吸着部の面積が増減するようにしてあることを特徴とする物品の落下防止構造。 Always stand on the shelf to store the article so as not to prevent the removal of the article. When an earthquake occurs, the guide member guides the article to descend to the shelf, An article fall prevention structure that is held by a magnet in a standby position,
The magnet is provided around a small-area adsorbing portion of a circular or polygonal shape and an approximate shape thereof around a slope for detachment of a nonmagnetic material whose outer side gradually increases,
The fall prevention member of the article is supported by the guide member so as to be allowed to move back and forth, up and down, and left and right, and a portion corresponding to the magnet is provided with a mountain-shaped magnetic material that contacts the magnet at the top of a small area. Installed ,
An article fall prevention structure characterized in that the non-magnetic material separation slope is divided into a plurality of parts, and the area of the magnet attracting portion increases or decreases when each of them is moved equally in and out . 物品を収納する棚に、常時は物品の出し入れを妨げないように上方に待機し、地震が発生すると案内部材に案内されて棚口へ降下し、物品を受け止める物品の落下防止部材を、上方の待機位置に磁石で保持させる物品の落下防止構造であって、  Always stand on the shelf to store the articles so as not to disturb the loading and unloading of the articles. When an earthquake occurs, the guide members guide the members to descend to the shelf mouth, An article fall prevention structure that is held by a magnet in a standby position,
上記磁石は、円形か多角形これらと近似形の小面積の吸着部の周囲に、外側が次第に高くなる非磁性材の離脱用斜面を巡らし設けられており、  The magnet is provided around a small-area adsorbing portion of a circular or polygonal shape and an approximate shape thereof around a slope for detachment of a nonmagnetic material whose outer side gradually increases,
上記物品の落下防止部材は、案内部材に前後、上下、左右の遊動が許容されるように支持されて、上記磁石に対応する部分には、小面積の頂部で磁石に接する山形の磁性材を取り付けられており、  The fall prevention member of the article is supported by the guide member so as to be allowed to move back and forth, up and down, and left and right, and a portion corresponding to the magnet is provided with a mountain-shaped magnetic material that contacts the magnet at the top of a small area. Installed,
上記磁石の吸着部には、必要に応じて上記山形の磁性材に作用する磁力を加減する調整膜材を付設してあることを特徴とする物品の落下防止構造。  A structure for preventing an article from dropping, wherein an adjustment film material for adjusting the magnetic force acting on the chevron-shaped magnetic material is attached to the magnet adsorbing portion as necessary. 上記案内部材に設けられる案内溝の下端一側に切込を形成し、他側には物品の落下防止部材を上記切込へ係合させる斜面を形成してあることを特徴とする請求項１又は２に記載の物品の落下防止構造。 Claim, characterized in that the lower end one side of the guide groove provided in the guide member to form a notch, the other side is formed an inclined surface to engage the fall preventing member of the article into the cut 1 Or the fall prevention structure of the article | item of 2 .
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