JP2008133075A - Load supporting device of rack for load storage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance earthquake resistance by adopting a base isolation structure in a load supporting device of a rack for load storage in which a pair of long right and left load receiving members is horizontally installed inside both right and left partition wall frames of a load storage district in the loading/unloading direction. <P>SOLUTION: In this load supporting device, each of supporting units 10A, 10B disposed between supporting members 9 and the load receiving members 3 comprises a columnar member 13 projecting from a supporting member 7 and a receiving member 14 attached to the load receiving member 3. The receiving member 14 has a contact plate part 21 horizontally slidably abutting on the horizontal supporting surface 19a of the columnar member 13 and having a slidable contact surface 24a larger in area than the horizontal supporting surface 19a, and a peripheral wall part 22 arranged continuously with the periphery of the contact plate part 21. Biasing units 12A, 12B are so formed on the center part of the slidable contact surface 24a of the contact plate part 21 as to hold the columnar member 13. A cushioning material 26 is installed inside the peripheral wall part 22. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、荷収納区画の左右両隔壁枠の内側に、当該荷収納区画の前後奥行き方向に長い左右一対の荷受け部材が水平に架設された荷保管用ラックの荷支持装置に関するものである。   The present invention relates to a load support device for a load storage rack in which a pair of left and right load receiving members that are long in the front-rear depth direction of the load storage section are horizontally installed inside the left and right partition walls of the load storage section.

この種の荷保管用ラックにおいて、地震時にラックが荷収納区画の前後奥行き方向（荷出し入れ方向）に揺れることによって、保管中の荷が当該ラックの通路側（ラックに沿って設けられた入出庫用クレーンの走行通路のある側）へ荷受け部材上を滑動して落下する事故が発生している。このような事故を未然に防止する一つの手段として、各荷収納区画が備える左右一対の荷受け部材を免震構造とすることが考えられている。この種の荷保管用ラックの荷支持装置における免震構造は、特許文献１にも記載されているように、基本的には、荷収納区画の左右両隔壁枠から連設された支持部材と各荷受け部材との間に、当該荷受け部材を一定範囲内で水平スライド可能に支持する支持手段と、当該荷受け部材をスライド可能領域内の定位置に付勢保持する付勢手段とを配設するものとなる。
特許第３７２９３１６号公報（特開２０００−２２６１１１号公報） In this type of load storage rack, when the rack swings in the front / rear depth direction (unloading / unloading direction) of the load storage section, the load being stored can be placed on the aisle side of the rack (the loading / unloading provided along the rack). There is an accident that the load receiving member slides and falls to the side of the traveling crane. As one means for preventing such an accident, a pair of left and right load receiving members included in each load storage section is considered to have a seismic isolation structure. The seismic isolation structure in this type of load storage rack load support device basically includes a support member provided continuously from both left and right bulkhead frames of the load storage compartment, as described in Patent Document 1. Between each of the load receiving members, a support means for supporting the load receiving member so as to be horizontally slidable within a certain range, and an urging means for urging and holding the load receiving member at a fixed position in the slidable region are disposed. It will be a thing.
Japanese Patent No. 3729316 (Japanese Patent Laid-Open No. 2000-226111)

而して、この種の免震構造を備えた荷支持装置において、安全対策として支持部材に対する荷受け部材のスライド可能領域を支持部材側に設けたスライド制限部材によって制限することになるが、この場合、ラックが急激な揺れを受けたとき、荷受け部材が支持部材側のスライド制限部材に勢い良く衝突し、その反動で荷受け部材上に支持されている荷、例えばパレット上にバラ積みされた荷が崩れる恐れが考えられる。   Thus, in the load support device having this type of seismic isolation structure, as a safety measure, the slidable region of the load receiving member with respect to the support member is limited by the slide limiting member provided on the support member side. When the rack is subjected to sudden shaking, the load receiving member collides with the slide limiting member on the support member side vigorously, and the load supported on the load receiving member by the reaction, for example, the load stacked on the pallet There is a possibility of collapse.

本発明は上記のような従来の問題点を解消し得る荷保管用ラックの荷支持装置を提供することを目的とするものであって、請求項１に記載の荷支持装置は、後述する実施形態の参照符号を付して示すと、荷収納区画１の左右両隔壁枠２の内側に、当該荷収納区画１の前後奥行き方向（Ｘ方向）に長い左右一対の荷受け部材３が水平に架設され、この荷受け部材３の下側には、前記左右両隔壁枠２から連設された支持部材７が配置され、この支持部材７と荷受け部材３との間には、当該荷受け部材３を一定範囲内で水平スライド可能に支持する支持手段９と、当該荷受け部材３をスライド可能領域内の定位置に付勢保持する付勢手段１１が配設された荷保管用ラックの荷支持装置であって、前記支持手段９は、前記荷受け部材３の長さ方向の少なくとも２箇所に配設された支持ユニット１０Ａ，１０Ｂを備え、各支持ユニット１０Ａ，１０Ｂは、前記支持部材７と荷受け部材３との内の一方の部材から他方の部材側に向かって突設された柱状部材１３と、前記他方の部材に取り付けられた受け部材１４とから成り、前記受け部材１４は、前記柱状部材１３の先端面（水平支持面１９ａ）に水平方向スライド自在に当接し且つ当該先端面（水平支持面１９ａ）よりも広い摺接面２４ａを有する当接板部２１と、この当接板部２１の周囲から前記柱状部材１３を取り囲むように連設された周壁部２２とから成り、前記付勢手段１１は、前記当接板部２１の摺接面２４ａの中央部に前記柱状部材１３を保持するように構成され、前記周壁部２２の内側に緩衝材２６が装着された構成となっている。   SUMMARY OF THE INVENTION An object of the present invention is to provide a load support device for a load storage rack capable of solving the conventional problems as described above, and the load support device according to claim 1 is an implementation described later. When a reference numeral of the form is attached, a pair of left and right load receiving members 3 that are long in the front-rear depth direction (X direction) of the load storage section 1 are installed horizontally inside the left and right partition walls 2 of the load storage section 1. A support member 7 connected from the left and right partition wall frames 2 is disposed below the load receiving member 3, and the load receiving member 3 is fixed between the support member 7 and the load receiving member 3. This is a load storage device for a load storage rack provided with support means 9 for supporting the load receiving member 3 so as to be horizontally slidable within a range and urging means 11 for urging and holding the load receiving member 3 at a fixed position within the slidable region. Thus, the support means 9 is a small part of the load receiving member 3 in the length direction. The supporting units 10A and 10B are provided at least in two places, and each of the supporting units 10A and 10B protrudes from one member of the supporting member 7 and the load receiving member 3 toward the other member side. And a receiving member 14 attached to the other member. The receiving member 14 abuts on the front end surface (horizontal support surface 19a) of the columnar member 13 so as to be slidable in the horizontal direction, and A contact plate portion 21 having a sliding contact surface 24a wider than the front end surface (horizontal support surface 19a), and a peripheral wall portion 22 continuously provided so as to surround the columnar member 13 from the periphery of the contact plate portion 21; The biasing means 11 is configured to hold the columnar member 13 at the center of the sliding contact surface 24a of the abutting plate portion 21, and a cushioning material 26 is attached to the inner side of the peripheral wall portion 22. It became the composition That.

上記の本発明に係る荷保管用ラックの荷支持装置を実施する場合、請求項２に記載のように、前記柱状部材１３は、前記支持部材７から上向きに突設し、前記受け部材１４は、前記荷受け部材３の下側に固着することができる。又、前記付勢手段１１は、請求項３に記載のように、前記柱状部材１３と前記受け部材１４の周壁部２２との間に水平向きに介装された渦巻き状コイルバネ１５で構成することができる。   When the load supporting device for a load storage rack according to the present invention is implemented, as described in claim 2, the columnar member 13 protrudes upward from the supporting member 7, and the receiving member 14 is , And can be fixed to the lower side of the load receiving member 3. The urging means 11 comprises a spiral coil spring 15 interposed horizontally between the columnar member 13 and the peripheral wall portion 22 of the receiving member 14 as described in claim 3. Can do.

本発明に係る荷保管用ラックの荷支持装置によれば、ラックが地震発生時に荷収納区画の前後奥行き方向（荷受け部材の長さ方向）に揺れ動いたとき、ラックと一体に前後に揺れ動く支持部材と、支持ユニットの柱状部材と受け部材とを介して水平方向スライド自在に支持されている荷受け部材との間に、付勢手段の付勢力に抗しての相対移動が生じ、荷を支持している荷受け部材がラックと一体に同一速度、同一振幅で前後方向に揺れ動くことがなくなる。従って、開放された通路側（前方）にラックが揺れ動いたときに荷受け部材及び当該荷受け部材上の荷が一体に前方に揺れ動くことにより、慣性で荷が荷受け部材上を通路側へ滑動し、場合によっては通路側へ落下してしまう恐れがなくなる。そし支持部材と荷受け部材との間の相対移動後は、付勢手段の付勢力により、受け部材の当接板部における摺接面中央部に柱状部材が戻され、荷受け部材は支持部材上の原点位置に自動復帰するので、荷受け部材上で荷が滑動しない限り荷の位置が前後方向に不測に変動することはなく、安全に荷を継続保管することができる。   According to the load supporting device for a load storage rack according to the present invention, when the rack swings back and forth in the depth direction (the length direction of the load receiving member) of the load storage section when an earthquake occurs, the support member swings back and forth integrally with the rack. And a load receiving member supported so as to be slidable in the horizontal direction via the columnar member and the receiving member of the support unit, a relative movement occurs against the urging force of the urging means to support the load. The load receiving member is not swayed in the front-rear direction at the same speed and the same amplitude as the rack. Therefore, when the rack swings to the opened passage side (forward), the load receiving member and the load on the load receiving member swing forward together, and the load slides on the load receiving member due to inertia. Depending on the situation, there is no risk of falling to the passage side. After the relative movement between the support member and the load receiving member, the columnar member is returned to the center of the sliding surface of the contact plate portion of the receiving member by the biasing force of the biasing means, and the load receiving member is placed on the support member. Since the position automatically returns to the origin position, unless the load slides on the load receiving member, the load position does not change unexpectedly in the front-rear direction, and the load can be continuously stored safely.

而して、上記請求項１に記載の本発明の構成によれば、付勢手段の付勢力に抗して支持部材に対し荷受け部材が水平方向に相対移動して、支持ユニットにおける受け部材の周壁部に柱状部材が接近するような状況になったとき、周壁部内側の緩衝材が当該周壁部と柱状部材との間で圧縮されることになる。このときの緩衝材の圧縮反力が支持部材に対する荷受け部材の相対移動にブレーキをかけることになる。このブレーキ力がダンパー効果となり、急激な揺れがラックに作用しても、支持ユニットにおける柱状部材と受け部材の周壁部とを勢い良く衝突させないで済む。従って、パレット上にバラ積みされた荷を収納しているときでも、荷崩れが生じることがなくなるか又は少なくなり、安全性が高められる。   Thus, according to the configuration of the present invention described in claim 1, the load receiving member moves relative to the support member in the horizontal direction against the urging force of the urging means, and When the columnar member approaches the peripheral wall portion, the cushioning material inside the peripheral wall portion is compressed between the peripheral wall portion and the columnar member. The compression reaction force of the buffer material at this time brakes the relative movement of the load receiving member with respect to the support member. Even if this braking force becomes a damper effect and a sudden swing acts on the rack, the columnar member in the support unit and the peripheral wall portion of the receiving member do not have to collide with force. Therefore, even when a load loaded in bulk on the pallet is stored, the collapse of the load is prevented or reduced, and the safety is improved.

尚、支持ユニットにおける柱状部材は荷受け部材側から下向きに突設し、受け部材を支持部材側に上側開放向きに付設することもできるが、請求項２に記載の構成によれば、受け部材が下側開放向きになって、柱状部材に上から被さる状態になるので、受け部材を平面視において荷受け部材から外側に張り出すように大きく構成する場合でも、受け部材の当接板部摺接面や周壁部内側の緩衝材に塵埃などが付着して円滑な相対摺接運動や確実な緩衝効果が阻害されるような不都合が生じない。   In addition, although the columnar member in the support unit protrudes downward from the load receiving member side and the receiving member can be attached to the support member side in the upward opening direction, according to the configuration of claim 2, Since the columnar member is covered with the columnar member from above, the contact plate sliding surface of the receiving member even when the receiving member is configured to protrude outward from the load receiving member in plan view In addition, there is no inconvenience that dust or the like adheres to the cushioning material on the inner side of the peripheral wall portion and hinders the smooth relative sliding movement and the reliable cushioning effect.

又、請求項３に記載の構成によれば、付勢手段に必要なバネ、即ち、支持ユニットで支持されている荷受け部材を定位置に付勢保持するためのバネを支持ユニットの中に内装することができ、支持ユニットとは別の位置に付勢手段を構成する場合よりも、荷支持装置全体の部品点数を減らし、コストダウンを図ることができる。   According to the third aspect of the present invention, a spring necessary for the biasing means, that is, a spring for biasing and holding the load receiving member supported by the support unit in the fixed position is provided in the support unit. The number of parts of the entire load support device can be reduced and the cost can be reduced as compared with the case where the urging means is configured at a position different from the support unit.

図１は本発明の荷支持装置が適用できるラックの基本的な構成を示しており、１は上下左右両方向に碁盤目状に配置された荷収納区画であって、左右横方向に隣接する荷収納区画１間には垂直に隔壁枠２が立設され、上下に隣接する荷収納区画１は、左右一対の荷受け部材３によって区切られている。   FIG. 1 shows a basic configuration of a rack to which the load supporting apparatus of the present invention can be applied. Reference numeral 1 denotes a load storage section arranged in a grid pattern in both the upper, lower, left and right directions, and adjacent loads in the left and right lateral directions. A partition frame 2 is erected vertically between the storage compartments 1, and the load storage compartments 1 adjacent to each other in the vertical direction are separated by a pair of left and right load receiving members 3.

各隔壁枠２は、前後一対の支柱材４ａ，４ｂを連結部材５によって互いに連結したラチス構造のものであって、荷収納区画１の背面側では、各隔壁枠２の後側支柱材４ｂが水平や斜めの連結部材６で連結され、荷収納区画１の正面側、即ち、荷収納区画１に対して荷の出し入れを行う入出庫用クレーンの走行通路側では、荷収納区画１に対する荷の出し入れに邪魔にならないレベルで水平連結材（図示省略）により各隔壁枠２の前側支柱材４ａどうしが連結されることが知られている。左右一対の荷受け部材３は、荷収納区画１に対する荷の出し入れ方向、即ち、荷収納区画１の前後奥行き方向（Ｘ方向）に長い棒状のもので、その前後両端部が、外側に隣接する隔壁枠２の前後両支柱材４ａ，４ｂに取り付けられた前後一対の支持部材７に支持される。   Each partition frame 2 has a lattice structure in which a pair of front and rear support members 4a and 4b are connected to each other by a connecting member 5. On the back side of the load storage compartment 1, the rear support members 4b of each partition frame 2 are On the front side of the load storage section 1, that is, on the traveling passage side of the loading / unloading crane that loads and unloads the load storage section 1, the load is stored in the load storage section 1. It is known that the front strut members 4a of the partition wall frames 2 are connected to each other by a horizontal connecting member (not shown) at a level that does not interfere with taking in and out. The pair of left and right load receiving members 3 are rod-shaped members that are long in the loading / unloading direction of the load storage section 1, that is, the front-rear depth direction (X direction) of the load storage section 1, and the front and rear ends thereof are partition walls adjacent to the outside. The frame 2 is supported by a pair of front and rear support members 7 attached to both front and rear support members 4a and 4b.

以下、本発明の一実施形態を図２〜図６に基づいて具体的に説明すると、各荷受け部材３は、下側開放の門形材８から成り、この各荷受け部材３の前後両端部とこれらの下側に延出している前記支持部材７の遊端部との間に、支持手段９を構成する前後一対の支持ユニット１０Ａ，１０Ｂと、付勢手段１１を構成する前後一対の付勢ユニット１２Ａ，１２Ｂとが配設されている。前後一対の支持ユニット１０Ａ，１０Ｂは同一構造のもので、支持部材７の上面に突設された柱状部材１３と、この柱状部材１３に対して上側から被さる受け部材１４とから構成され、前後一対の付勢ユニット１２Ａ，１２Ｂは、各支持ユニット１０Ａ，１０Ｂにおける柱状部材１３と受け部材１４との間に水平に介装された渦巻き状コイルバネ１５から構成されている。   Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 2 to 6. Each load receiving member 3 is composed of a gate member 8 that is open on the lower side. A pair of front and rear support units 10A and 10B constituting the support means 9 and a pair of front and rear urging forces constituting the urging means 11 between the free end portions of the support member 7 extending downwardly. Units 12A and 12B are arranged. The pair of front and rear support units 10A and 10B have the same structure, and are composed of a columnar member 13 protruding from the upper surface of the support member 7 and a receiving member 14 covering the columnar member 13 from above. The urging units 12A and 12B are each composed of a spiral coil spring 15 interposed horizontally between the columnar member 13 and the receiving member 14 in each of the support units 10A and 10B.

柱状部材１３は、支持部材７の上面に複数本の取付けボルト１６で取り付けられ且つ上端円周角部に切欠き段部１７ａ（図６参照）を備えた円柱体１７と、この円柱体１７の上端に重ねられ且つ前記円柱体１７と同一径の円形押さえ板１８と、この円形押さえ板１８の上に重ねられ且つ前記円柱体１７と同一径の円形スライド板１９と、この円形スライド板１９と円形押さえ板１８とを円柱体１７に固定する複数本の取付けネジ２０とから構成されている。この取付けネジ２０の頭部上面は、円形スライド板１９の上面と面一か又は若干窪んでいるように構成されている。而して、円柱体１７の上端円周角部に形成された切欠き段部１７ａと円形押さえ板１８との周辺部とによって、この柱状部材１３の円柱面に環状の凹溝部１３ａが形成されている。   The columnar member 13 is attached to the upper surface of the support member 7 with a plurality of mounting bolts 16 and has a cylindrical body 17 having a notch step portion 17a (see FIG. 6) at the upper circumferential edge, and A circular pressure plate 18 having the same diameter as that of the cylindrical body 17 and a circular slide plate 19 which is superimposed on the circular pressure plate 18 and has the same diameter as the circular body 17, and the circular slide plate 19. The circular pressing plate 18 is composed of a plurality of mounting screws 20 for fixing the circular pressing plate 18 to the cylindrical body 17. The upper surface of the head of the mounting screw 20 is configured to be flush with the upper surface of the circular slide plate 19 or slightly recessed. Thus, an annular groove 13a is formed on the cylindrical surface of the columnar member 13 by the notch step portion 17a formed at the upper circumferential edge of the cylindrical body 17 and the peripheral portion of the circular pressing plate 18. ing.

受け部材１４は、前記柱状部材１３より大径で円形の当接板部２１と、この当接板部２１の周囲から前記柱状部材１３を取り囲むように連設された円環状の周壁部２２とから構成されたもので、当接板部２１の下側には、その略全面をカバーするように円形スライド板２４が複数本の取付けネジ２３で取り付けられ、この円形スライド板２４によって、前記柱状部材１３の上端面、即ち、円形スライド板１９の水平支持面１９ａに水平二次元方向にスライド自在に当接する、当該先端面（水平支持面１９ａ）よりも広い摺接面２４ａが形成されている。而して、柱状部材１３側の水平支持面１９ａに受け部材１４側の摺接面２４ａを載置したとき、当該柱状部材１３の凹溝部１３ａと同一レベルになる位置、即ち、リング状の緩衝材２６の直下位置において、周壁部２２の内周面に環状の凹溝部２２ａが形成されている。更に、前記周壁部２２の内側で前記凹溝部２２ａと円形スライド板２４との間の領域には、各種弾性材から成るリング状の緩衝材２６が貼付されている。尚、この受け部材１４は、図３及び図４に示すように、荷受け部材３の長さ方向の両端部において下側開放の門形材８の両側垂直板部８ａ，８ｂに形成した切欠き部２５に、平面視において当該受け部材１４の当接板部２１が門形材８の左右両側辺と端辺とから突出するように嵌合させた状態で、溶接により門形材８に固着している。   The receiving member 14 has a contact plate portion 21 that is larger in diameter and circular than the columnar member 13, and an annular peripheral wall portion 22 that is continuously provided so as to surround the columnar member 13 from the periphery of the contact plate portion 21. The circular slide plate 24 is attached to the lower side of the contact plate portion 21 with a plurality of mounting screws 23 so as to cover substantially the entire surface thereof. A slidable contact surface 24a wider than the tip end surface (horizontal support surface 19a) is formed which abuts on the upper end surface of the member 13, that is, the horizontal support surface 19a of the circular slide plate 19 so as to be slidable in the horizontal two-dimensional direction. . Thus, when the sliding contact surface 24a on the receiving member 14 side is placed on the horizontal support surface 19a on the columnar member 13 side, the position becomes the same level as the concave groove portion 13a of the columnar member 13, that is, a ring-shaped buffer. An annular concave groove portion 22 a is formed on the inner peripheral surface of the peripheral wall portion 22 at a position directly below the material 26. Further, a ring-shaped cushioning material 26 made of various elastic materials is attached to a region between the concave groove portion 22 a and the circular slide plate 24 inside the peripheral wall portion 22. As shown in FIGS. 3 and 4, the receiving member 14 has notches formed on both side vertical plate portions 8a and 8b of the gate-shaped member 8 that is open on the lower side at both ends in the length direction of the load receiving member 3. In a state where the contact plate portion 21 of the receiving member 14 is fitted to the portion 25 so as to protrude from the left and right sides and the end sides of the gate-shaped member 8 in a plan view, it is fixed to the gate-shaped member 8 by welding. is doing.

渦巻き状コイルバネ１５は、水平二次元平面上で線状鋼材を渦巻き状に巻回して成るもので、その内端側Ｃ字状部分１５ａを柱状部材１３側の凹溝部１３ａに嵌合させた状態で弾性に抗して縮径させ、その外端側Ｃ字状部分１５ｂを受け部材１４側の凹溝部２２ａに嵌合させている。具体的には、柱状部材１３を構成する円形押さえ板１８と円形スライド板１９とを円柱体１７に取り付ける前に、当該円柱体１７の上端円周角部の切欠き段部１７ａに渦巻き状コイルバネ１５の内端側Ｃ字状部分１５ａを上から嵌合させ、この後、円形押さえ板１８と円形スライド板１９とを円柱体１７の上端に取付けネジ２０により取り付けることができる。   The spiral coil spring 15 is formed by spirally winding a linear steel material on a horizontal two-dimensional plane, and the inner end side C-shaped portion 15a is fitted in the concave groove portion 13a on the columnar member 13 side. The outer end side C-shaped part 15b is received and fitted into the concave groove part 22a on the member 14 side. Specifically, before the circular pressing plate 18 and the circular slide plate 19 constituting the columnar member 13 are attached to the cylindrical body 17, a spiral coil spring is formed on the notched step portion 17 a at the upper circumferential edge of the cylindrical body 17. The inner end side C-shaped portion 15 a of 15 can be fitted from above, and thereafter, the circular pressing plate 18 and the circular slide plate 19 can be attached to the upper end of the cylindrical body 17 with the mounting screw 20.

上記構成の支持ユニット１０Ａ，１０Ｂ及び付勢ユニット１２Ａ，１２Ｂによって支持部材７に支持された荷受け部材３は、支持部材７側の柱状部材１３の上端水平支持面１９ａ（円形スライド板１９の上側面）で荷受け部材３側の受け部材１４の摺接面２４ａ（円形スライド板２４の下側面）が支持されているため、受け部材１４の周壁部２２の内側領域内、具体的には、図５に示すように渦巻き状コイルバネ１５が柱状部材１３と周壁部２２との間で水平方向に圧縮されて互いに密着するか又は、周壁部２２が柱状部材１３に当接するまでの範囲内で、一定レベルの水平二次元方向に３６０度如何なる方向にもスライド可能である。又、渦巻き状コイルバネ１５は、弾性に抗して縮径された状態で柱状部材１３と周壁部２２との間に介装されているから、その反力で荷受け部材３の位置が、受け部材１４の周壁部２２が柱状部材１３に対し同心状になる位置に保持される。従って、柱状部材１３側の上端水平支持面１９ａは、受け部材１４側の摺接面２４ａの中央部に当接することになる。   The load receiving member 3 supported by the support member 7 by the support units 10A and 10B and the urging units 12A and 12B having the above-described configuration is the upper horizontal support surface 19a of the columnar member 13 on the support member 7 side (the upper surface of the circular slide plate 19). ) Supports the sliding contact surface 24a of the receiving member 14 on the side of the load receiving member 3 (the lower surface of the circular slide plate 24), and therefore, in the inner region of the peripheral wall portion 22 of the receiving member 14, specifically, FIG. As shown in FIG. 4, the spiral coil spring 15 is compressed in the horizontal direction between the columnar member 13 and the peripheral wall portion 22 so as to be in close contact with each other, or within a range until the peripheral wall portion 22 contacts the columnar member 13. It is possible to slide 360 degrees in any horizontal two-dimensional direction. Further, since the spiral coil spring 15 is interposed between the columnar member 13 and the peripheral wall portion 22 while being reduced in diameter against elasticity, the position of the load receiving member 3 is changed by the reaction force to the receiving member. Fourteen peripheral wall portions 22 are held at positions that are concentric with the columnar member 13. Therefore, the upper end horizontal support surface 19a on the columnar member 13 side comes into contact with the central portion of the sliding contact surface 24a on the receiving member 14 side.

以上の構成において、左右一対の荷受け部材３上に荷が跨がって載置されたとき、荷重は、前後２つの支持ユニット１０Ａ，１０Ｂにおける受け部材１４の当接板部２１と柱状部材１３とを介して支持部材７に受け止められる。係る状態で、渦巻き状コイルバネ１５を水平方向に変形させることができるだけの強さの水平向きの外力が荷受け部材３と支持部材７との間に相対的に作用すると、荷受け部材３と支持部材７とは、図５に示すように渦巻き状コイルバネ１５が柱状部材１３と周壁部２２との間で水平方向に圧縮されて互いに密着するか又は、周壁部２２が柱状部材１３に当接するまでの範囲内で、柱状部材１３側の水平支持面１９ａ（円形スライド板１９の上側面）と受け部材１４側の摺接面２４ａ（円形スライド板２４の下側面）との間の相対滑動を伴って、渦巻き状コイルバネ１５を水平方向に変形させながら水平に相対移動することができる。而して、周壁部２２の内側に貼付されたリング状の緩衝材２６は、受け部材１４と柱状部材１３との相対移動領域の限界まで、即ち、図５に示すように渦巻き状コイルバネ１５が柱状部材１３と周壁部２２との間で水平方向に圧縮されて互いに密着するか又は、周壁部２２が柱状部材１３に当接するまで、柱状部材１３と受け部材１４とが水平に相対移動したとき、柱状部材１３によって緩衝材２６が十分に圧縮されるか又は、相対移動領域の限界に達する前に受け部材１４と柱状部材１３との相対移動が緩衝材の圧縮反力によって制止されるように、厚さや段勢力が設定されている。   In the above configuration, when a load is placed on the pair of left and right load receiving members 3, the load is applied to the contact plate portion 21 of the receiving member 14 and the columnar member 13 in the two front and rear support units 10 </ b> A and 10 </ b> B. Are received by the support member 7. In such a state, when a horizontal external force that is strong enough to deform the spiral coil spring 15 in the horizontal direction acts relatively between the load receiving member 3 and the support member 7, the load receiving member 3 and the support member 7. 5 is a range from when the spiral coil spring 15 is compressed in the horizontal direction between the columnar member 13 and the peripheral wall portion 22 to be in close contact with each other or until the peripheral wall portion 22 contacts the columnar member 13. With the relative sliding between the horizontal support surface 19a on the columnar member 13 side (upper side surface of the circular slide plate 19) and the sliding contact surface 24a on the receiving member 14 side (lower side surface of the circular slide plate 24), The spiral coil spring 15 can be relatively moved horizontally while being deformed in the horizontal direction. Thus, the ring-shaped cushioning material 26 affixed to the inside of the peripheral wall portion 22 has the spiral coil spring 15 as shown in FIG. 5 up to the limit of the relative movement region between the receiving member 14 and the columnar member 13. When the columnar member 13 and the receiving member 14 are horizontally moved relative to each other until the columnar member 13 and the peripheral wall portion 22 are compressed in the horizontal direction and come into close contact with each other, or until the peripheral wall portion 22 contacts the columnar member 13. The buffer member 26 is sufficiently compressed by the columnar member 13 or the relative movement between the receiving member 14 and the columnar member 13 is restrained by the compression reaction force of the buffer member before reaching the limit of the relative movement region. , Thickness and stepping force are set.

従って、地震などによりラックが荷収納区画１の前後奥行き方向（Ｘ方向）に揺れ動いたとき、荷を支持している荷受け部材３に対し、ラックと一体の支持部材７が付勢ユニット１２Ａ，１２Ｂの渦巻き状コイルバネ１５の弾性に抗して同方向に揺動し、荷を支持している荷受け部材３と支持部材７との間で相対移動が生じ、荷受け部材３上の荷は殆ど揺れ動かないか又は、支持部材７の揺れよりも遅れて小さな振幅で揺れ動くことになり、揺れの速度や振幅が想定範囲内であれば所期の免震効果が得られる。勿論、付勢ユニット１２Ａ，１２Ｂの渦巻き状コイルバネ１５は、常に弾性復帰力で内端側Ｃ字状部分１５ａと外端側Ｃ字状部分１５ｂとが略同心状態になるように自動復帰しようとするので、ラックの揺れが収まったときには、当該渦巻き状コイルバネ１５の弾性復帰力で荷受け部材３は所期の定位置に自動的に戻される。   Therefore, when the rack swings in the front-rear depth direction (X direction) of the load storage section 1 due to an earthquake or the like, the support member 7 integral with the rack is biased to the load receiving member 3 supporting the load. The spiral coil spring 15 swings in the same direction against the elasticity of the spiral coil spring 15, and relative movement occurs between the load receiving member 3 supporting the load and the support member 7, and the load on the load receiving member 3 is almost swung. If it does not exist, or it swings with a small amplitude later than the swing of the support member 7, the desired seismic isolation effect can be obtained if the speed and amplitude of the swing are within the assumed range. Of course, the spiral coil springs 15 of the urging units 12A and 12B always attempt to automatically return so that the inner end side C-shaped portion 15a and the outer end side C-shaped portion 15b are substantially concentric by elastic return force. Therefore, when the rack swing is settled, the load receiving member 3 is automatically returned to the intended fixed position by the elastic return force of the spiral coil spring 15.

上記の荷受け部材３と支持部材７との間の水平相対移動は、抵抗少なく円滑に行われるように構成しなければ所期の免震効果が期待できない。換言すれば、支持ユニット１０Ａ，１０Ｂにおける柱状部材１３側の水平支持面１９ａと受け部材１４側の摺接面２４ａとの間の摩擦抵抗はできる限り小さくなるように構成しなければならない。このため、水平支持面１９ａや摺接面２４ａは、柱状部材１３（円形押さえ板１８）や受け部材１４とは別の摩擦抵抗の少ない材質から成る別部材の円形スライド板１９や円形スライド板２４で構成しているのであるが、本発明では、上記のように周壁部２２の内側に緩衝材２６が装着されているので、ラックの揺れが小さくて支持部材７と荷受け部材３との間の水平方向の相対移動量が少ないときは、前記緩衝材に影響されることなく柱状部材１３と受け部材１４とは軽く円滑に相対移動するが、ラックの揺れが大きくて支持部材７と荷受け部材３との間の水平方向の相対移動量が大きくなると、柱状部材１３が緩衝材２６に圧接し、この緩衝材２６から圧縮反力を受けて制動されることになる。従って、ラックに強い揺れが生じても、支持部材７側の柱状部材１３と荷受け部材３側の受け部材１４の周壁部２２とが勢い良く衝突し、荷崩れの原因となる恐れが解消するか又は少なくなる。   The horizontal relative movement between the load receiving member 3 and the support member 7 cannot be expected to have the desired seismic isolation effect unless it is configured to be smoothly performed with little resistance. In other words, the frictional resistance between the horizontal support surface 19a on the columnar member 13 side and the sliding contact surface 24a on the receiving member 14 side in the support units 10A and 10B must be configured to be as small as possible. For this reason, the horizontal support surface 19a and the sliding contact surface 24a are different from the columnar member 13 (circular pressing plate 18) and the receiving member 14 and are made of different members, such as the circular slide plate 19 and the circular slide plate 24. However, in the present invention, since the cushioning material 26 is mounted on the inner side of the peripheral wall portion 22 as described above, the rack swing is small and the space between the support member 7 and the load receiving member 3 is small. When the amount of relative movement in the horizontal direction is small, the columnar member 13 and the receiving member 14 move lightly and smoothly without being affected by the cushioning material, but the rack swing is large and the support member 7 and the load receiving member 3 are moved. When the amount of relative movement in the horizontal direction increases, the columnar member 13 comes into pressure contact with the cushioning material 26 and is braked by receiving a compression reaction force from the cushioning material 26. Therefore, even if strong shaking occurs in the rack, can the columnar member 13 on the support member 7 side and the peripheral wall portion 22 of the receiving member 14 on the load receiving member 3 collide vigorously to eliminate the possibility of causing load collapse? Or less.

尚、上記実施形態では、支持部材７を支持している隔壁枠２の前後一対の支柱材４ａ，４ｂは横断面形状が開放断面であって、図２Ｃに示すように、支持部材７を取り付けている支柱材４ａ，４ｂの横向きに突出する横断面角形の側壁板部４ｃが内外水平方向に弾性変形できるものであるから、この支柱材４ａ，４ｂの横断面角形の側壁板部４ｃの内外水平方向の弾性変形を伴う方向であれば、支持部材７と隔壁枠２との間の水平方向の相対移動がある程度許容されている。従って、地震などによるラック（隔壁枠２）の揺れ方向によっては、支持部材７と荷受け部材３との間の水平方向相対移動に加えて、支持部材７と隔壁枠２との間の水平方向の相対移動が、荷受け部材３で支持されている荷に対する免震効果を高めることにもなる。図２Ｃにおいて、７ａは支持部材７の内端に付設した取付け板であって、この取付け板７ａが支柱材４ａ，４ｂの横向きに突出する横断面角形の側壁板部４ｃに外嵌する状態で、結合ピン７ｂにより当該支柱材４ａ，４ｂに係止される。   In the above-described embodiment, the pair of front and rear support columns 4a and 4b of the partition wall frame 2 supporting the support member 7 has an open cross section, and the support member 7 is attached as shown in FIG. 2C. Since the side wall plate portion 4c having a square cross section projecting sideways of the supporting column members 4a and 4b can be elastically deformed in the horizontal direction inside and outside, the inside and outside of the side wall plate portion 4c having a square cross section shape of the column materials 4a and 4b. If the direction is accompanied by elastic deformation in the horizontal direction, the relative movement in the horizontal direction between the support member 7 and the partition frame 2 is allowed to some extent. Therefore, depending on the shaking direction of the rack (partition wall frame 2) due to an earthquake or the like, in addition to the horizontal relative movement between the support member 7 and the load receiving member 3, the horizontal direction between the support member 7 and the partition frame 2 The relative movement also increases the seismic isolation effect for the load supported by the load receiving member 3. In FIG. 2C, reference numeral 7a denotes a mounting plate attached to the inner end of the support member 7. The mounting plate 7a is fitted on the side wall plate portion 4c having a square cross section projecting sideways of the column members 4a and 4b. , It is locked to the support material 4a, 4b by the connecting pin 7b.

上記実施形態では、支持ユニット１０Ａ，１０Ｂに渦巻き状コイルバネ１５を組み込んで付勢ユニット１２Ａ，１２Ｂを構成したが、従来周知のように支持ユニット１０Ａ，１０Ｂとは別の箇所に付勢手段１１を配設することもできる。勿論、付勢手段１１の構成も限定されるものではなく、従来周知の各種の付勢手段を採用することができる。又、上記実施形態とは逆に、柱状部材１３を荷受け部材３側から下向きに突設し、受け部材１４を支持部材７側に設けることもできる。   In the above embodiment, the urging units 12A and 12B are configured by incorporating the spiral coil spring 15 into the support units 10A and 10B. However, as is conventionally known, the urging means 11 is provided at a location different from the support units 10A and 10B. It can also be arranged. Of course, the configuration of the biasing means 11 is not limited, and various well-known biasing means can be employed. Contrary to the above-described embodiment, the columnar member 13 can be protruded downward from the load receiving member 3 side, and the receiving member 14 can be provided on the support member 7 side.

尚、材質や表面処理によっては、上記実施形態に示したような円形スライド板１９，２４を使用しないで、柱状部材１３や受け部材１４の当接板部２１そのもので互いにスライド自在に当接する水平支持面１９ａと摺接面２４ａとを形成することも可能である。又、左右一対の荷受け部材３は、入出庫用クレーンの荷移載用フォークなどによる荷の出し入れに影響しない箇所、例えば荷受け部材３の後端部や、前記荷移載用フォークの出退空間より下側で、荷受け部材３どうしを連結部材で互いに連結することも可能である。   Depending on the material and the surface treatment, the horizontal slide plates 19 and 24 as shown in the above embodiment may be slidably brought into contact with each other by the contact plate portions 21 of the columnar member 13 and the receiving member 14 without using the circular slide plates 19 and 24. It is also possible to form the support surface 19a and the sliding contact surface 24a. The pair of left and right load receiving members 3 is located at a location that does not affect the loading and unloading of the load transfer fork of the crane for loading and unloading, for example, the rear end portion of the load receiving member 3 and the space for the loading and unloading fork. On the lower side, the load receiving members 3 can be connected to each other by a connecting member.

Ａ図は荷保管用ラックの基本構成を説明する要部の横断平面図、Ｂ図は同要部の正面図である。Fig. A is a cross-sectional plan view of the main part for explaining the basic configuration of the load storage rack, and Fig. B is a front view of the main part. Ａ図は荷支持装置を示す平面図、Ｂ図は同正面図、Ｃ図はＡ図のＣ部拡大図である。Fig. A is a plan view showing the load supporting device, Fig. B is a front view thereof, and Fig. C is an enlarged view of a portion C of Fig. A. 荷支持装置の片側を示す一部切欠き平面図である。It is a partially notched top view which shows the one side of a load support apparatus. 図３のＸ−Ｘ線断面図である。It is the XX sectional view taken on the line of FIG. 図３のＹ−Ｙ線断面図を、荷受け部材が一側方に変位した状態で示す図である。It is a figure which shows the YY sectional view taken on the line of FIG. 3 in the state which the load receiving member displaced to one side. １つの支持ユニット及び付勢ユニットを示す一部切欠き分解斜視図である。It is a partially cutaway exploded perspective view showing one support unit and an urging unit.

符号の説明Explanation of symbols

１ 荷収納区画
２ 隔壁枠
３ 荷受け部材
４ａ，４ｂ 支柱材
５，６ 連結部材
７ 支持部材
８ 門形材
９ 支持手段
１０Ａ，１０Ｂ 支持ユニット
１１ 付勢手段
１２Ａ，１２Ｂ 付勢ユニット
１３ 柱状部材
１３ａ，２２ａ 凹溝部
１４ 受け部材
１５ 渦巻き状コイルバネ
１７ 円柱体（柱状部材）
１８ 円形押さえ板
１９ 円形スライド板（柱状部材）
１９ａ 水平支持面
２１ 当接板部
２２ 周壁部
２４ 円形スライド板
２４ａ 摺接面
２５ 切欠き部
２６ リング状緩衝材 DESCRIPTION OF SYMBOLS 1 Load storage section 2 Bulkhead frame 3 Load receiving members 4a and 4b Support | pillar members 5 and 6 Connection member 7 Support member 8 Portal member 9 Support means 10A, 10B Support unit 11 Energizing means 12A, 12B Energizing unit 13 Columnar member 13a, 22a Concave groove portion 14 Receiving member 15 Spiral coil spring 17 Cylindrical body (columnar member)
18 Circular retainer plate 19 Circular slide plate (columnar member)
19a Horizontal support surface 21 Contact plate portion 22 Peripheral wall portion 24 Circular slide plate 24a Slide contact surface 25 Notch portion 26 Ring-shaped cushioning material

Claims (3)

荷収納区画の左右両隔壁枠の内側に、当該荷収納区画の前後奥行き方向に長い左右一対の荷受け部材が水平に架設され、この荷受け部材の下側には、前記左右両隔壁枠から連設された支持部材が配置され、この支持部材と荷受け部材との間には、当該荷受け部材を一定範囲内で水平スライド可能に支持する支持手段と、当該荷受け部材をスライド可能領域内の定位置に付勢保持する付勢手段とが配設された荷保管用ラックの荷支持装置であって、前記支持手段は、前記荷受け部材の長さ方向の少なくとも２箇所に配設された支持ユニットを備え、各支持ユニットは、前記支持部材と荷受け部材との内の一方の部材から他方の部材側に向かって突設された柱状部材と、前記他方の部材に取り付けられた受け部材とから成り、前記受け部材は、前記柱状部材の先端面に水平方向スライド自在に当接し且つ当該先端面よりも広い摺接面を有する当接板部と、この当接板部の周囲から前記柱状部材を取り囲むように連設された周壁部とから成り、前記付勢手段は、前記当接板部の摺接面中央部に前記柱状部材を保持するように構成され、前記周壁部の内側には、緩衝材が装着されている、荷保管用ラックの荷支持装置。   A pair of left and right load receiving members that are long in the front-rear depth direction of the load storage compartment are horizontally installed inside the left and right bulkhead frames of the load storage compartment. The support member is disposed, and between the support member and the load receiving member, a support means for supporting the load receiving member so as to be horizontally slidable within a certain range, and the load receiving member at a fixed position in the slidable region. A load support device for a load storage rack provided with an urging means for urging and holding, wherein the support means includes support units provided at least at two locations in a length direction of the load receiving member. Each support unit includes a columnar member projecting from one member of the support member and the load receiving member toward the other member side, and a receiving member attached to the other member, The receiving member is the front A contact plate portion that is slidably contacted with the tip end surface of the columnar member in a horizontal direction and has a sliding contact surface wider than the tip end surface, and is continuously provided so as to surround the columnar member from the periphery of the contact plate portion. The urging means is configured to hold the columnar member at the center of the sliding contact surface of the abutting plate portion, and a cushioning material is mounted inside the peripheral wall portion. , Load support device for load storage rack. 前記柱状部材は、前記支持部材から上向きに突設され、前記受け部材は、前記荷受け部材の下側に固着されている、請求項１に記載の荷保管用ラックの荷支持装置。   The load supporting device for a load storage rack according to claim 1, wherein the columnar member protrudes upward from the support member, and the receiving member is fixed to a lower side of the load receiving member. 前記付勢手段は、前記柱状部材と前記受け部材の周壁部との間に水平向きに介装された渦巻き状コイルバネで構成されている、請求項１又は２に記載の荷保管用ラックの荷支持装置。   The load of the load storage rack according to claim 1 or 2, wherein the biasing means is configured by a spiral coil spring interposed horizontally between the columnar member and the peripheral wall portion of the receiving member. Support device.

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