JP4765847B2

JP4765847B2 - Load support device for load storage rack

Info

Publication number: JP4765847B2
Application number: JP2006237383A
Authority: JP
Inventors: 豊長谷川; 孝藤田
Original assignee: Daifuku Co Ltd
Current assignee: Daifuku Co Ltd
Priority date: 2006-09-01
Filing date: 2006-09-01
Publication date: 2011-09-07
Anticipated expiration: 2026-09-01
Also published as: JP2008056453A

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。例えば特許文献１に記載されるように、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、荷収納区画の左右両隔壁枠から連設された支持部材に対して各荷受け部材をその長さ方向（荷収納区画の前後奥行き方向）にスライド可能に支持し、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を設けるものであった。
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. For example, as described in Patent Document 1, the seismic isolation structure in the load support device of this type of load storage rack is configured such that each load receiving member is attached to a support member provided continuously from both left and right partition walls of the load storage section. An urging means for supporting the load receiving member in a fixed position within the slidable region and supporting the load receiving member in a slidable direction in the length direction (the front and rear depth direction of the load storage section) is provided.
Japanese Patent No. 3729316 (Japanese Patent Laid-Open No. 2000-226111)

特許文献１に記載された従来の免震構造では、ラックが荷収納区画の前後奥行き方向に揺れたときに、荷受け部材に支持されている荷がラックの通路側へ飛び出して落下する事故を防止できるが、ラックが左右横方向に揺れたとき、荷が荷受け部材上で荷収納区画の左右横方向に滑動して、片側の荷受け部材から外れ落ちるような事故を防止することができない。 In the conventional seismic isolation structure described in Patent Document 1, when the rack sways in the front-rear depth direction of the load storage section, the load supported by the load receiving member jumps out to the rack passage side and prevents an accident that falls. However, when the rack swings in the horizontal direction, it is impossible to prevent an accident that the load slides in the horizontal direction of the load storage section on the load receiving member and falls off the load receiving member on one side.

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が水平に架設された荷保管用ラックの荷支持装置であって、前記荷受け部材３は、その真下に位置する前記前後奥行き方向と平行な水平軸心（水平支軸８の軸心）と同心円弧状の荷受け面３ａを有すると共に、前記水平軸心（水平支軸８の軸心）に沿った前後方向の移動と当該水平軸心（水平支軸８の軸心）の周りでの一定範囲内の回転とが可能に支持され、この荷受け部材３を前後移動領域内の定位置と回転領域内の中立位置とに付勢保持する付勢手段１０が併設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. The load storage device for a load storage rack, wherein the load receiving member 3 has a horizontal axis center (axial center of the horizontal support shaft 8) parallel to the front-rear depth direction and a concentric arc-shaped load receiving surface located immediately below the load receiving member 3 3a, and movement in the front-rear direction along the horizontal axis (the axis of the horizontal support shaft 8) and rotation within a certain range around the horizontal axis (the axis of the horizontal support shaft 8). The load receiving member 3 is supported in such a manner that the fixed position in the forward / backward movement region and the rotation region Biasing means 10 for biasing held in the standing position is in the hotel's configuration.

上記構成の本発明による荷保管用ラックの荷支持装置を実施する場合、具体的には、請求項２に記載のように、前記隔壁枠２の内側には、前記水平軸心と同心状の水平支軸８を架設し、この水平支軸８に、その長さ方向の移動と軸心の周りの回転とが可能に外嵌された可動体９の上側に前記荷受け部材３を載置固定し、前記付勢手段１０は、前記可動体９を前記水平支軸８の長さ方向に付勢するように前記水平支軸８に遊嵌されたコイルバネ１１ａ，１１ｂと、前記可動体９の下側に取り付けられて当該可動体９を正立姿勢に付勢する重錘１１ｃとから構成することができる。この場合、請求項３に記載のように、前記コイルバネ１１ａ，１１ｂは、前記可動体９の前後両側に介装して、当該可動体９を前後移動領域内の中立位置に付勢保持するように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 having the above-described configuration is implemented, specifically, as described in claim 2, the partition frame 2 has a concentric shape with the horizontal axis. A horizontal support shaft 8 is installed, and the load receiving member 3 is placed and fixed on the horizontal support shaft 8 on the upper side of a movable body 9 that is externally fitted so as to be able to move in the length direction and rotate around the axis. The biasing means 10 includes coil springs 11 a and 11 b loosely fitted to the horizontal support shaft 8 so as to bias the movable body 9 in the length direction of the horizontal support shaft 8, and the movable body 9. A weight 11c that is attached to the lower side and biases the movable body 9 to an upright posture. In this case, as described in claim 3, the coil springs 11 a and 11 b are interposed on both front and rear sides of the movable body 9 so as to bias and hold the movable body 9 at a neutral position in the front-rear movement region. Can be configured.

又、請求項４に記載のように、前記荷受け部材３の回転領域を、回転軸心の真上の中立位置を中心に左右一定角度内に制限する、回転制限手段を併設することができる。 According to a fourth aspect of the present invention, a rotation restricting means for restricting the rotation region of the load receiving member 3 within a certain right and left angle around the neutral position directly above the rotation axis can be provided.

更に、請求項５に記載のように、前記水平支軸８は、前記隔壁枠２に支持された前後一対のアーム材７ａ，７ｂに取り付けられた軸受部材１４に両端を嵌合して支持し、当該アーム材７ａ，７ｂには、前記水平支軸８に外嵌するバネ受け座２３を有する部材２１ａ，２１ｂを取り付け、このバネ受け座２３と可動体９との間で前記水平支軸８に前記コイルバネ１１ａ，１１ｂを遊嵌し、前記バネ受け座２３を有する部材２１ａ，２１ｂに、前記コイルバネ１１ａ，１１ｂに抗しての可動体９の移動を制限するストッパー部材２５ａ，２５ｂを取り付けることができる。この場合、請求項６に記載のように、前記荷受け部材３が前記水平支軸８の真上の中立位置を中心に左右の回転したとき、当該荷受け部材３の左右両側辺が前記アーム材７ａ，７ｂ又はバネ受け座２３を有する部材２１ａ，２１ｂに当接して、荷受け部材３の回転が制限されるように構成することができる。 Further, as described in claim 5, the horizontal support shaft 8 is supported by fitting both ends to a bearing member 14 attached to a pair of front and rear arm members 7a, 7b supported by the partition wall frame 2. The arm members 7a and 7b are provided with members 21a and 21b having spring receiving seats 23 fitted on the horizontal supporting shaft 8, and the horizontal supporting shaft 8 between the spring receiving seat 23 and the movable body 9 is attached. The coil springs 11a and 11b are loosely fitted, and stopper members 25a and 25b for restricting the movement of the movable body 9 against the coil springs 11a and 11b are attached to the members 21a and 21b having the spring seats 23, respectively. Can do. In this case, as described in claim 6, when the load receiving member 3 is rotated left and right around the neutral position directly above the horizontal support shaft 8, the left and right sides of the load receiving member 3 are positioned on the arm member 7a. 7b or the members 21a and 21b having the spring receiving seat 23, and the rotation of the load receiving member 3 can be limited.

前記可動体９は、請求項７に記載のように、前側可動体９ａと後側可動体９ｂ、及びこの前後２つの可動体９ａ，９ｂの下側で両者を連結する連結部材９ｃにより構成し、この連結部材９ｃに前記重錘１１ｃを取り付けることができる。 The movable body 9 includes a front movable body 9a, a rear movable body 9b, and a connecting member 9c that couples the movable body 9 below the two movable bodies 9a and 9b. The weight 11c can be attached to the connecting member 9c.

又、請求項８に記載のように、前記コイルバネ１１ａ，１１ｂと可動体９との間には、両者の相対回転滑り抵抗を減じるためのスラスト受け部材２６ａ，２６ｂを介装することができるが、逆に、請求項９に記載のように、前記コイルバネ１１ａ，１１ｂの内端は前記可動体９に係止すると共に、前記コイルバネ１１ａ，１１ｂの外端は、前記水平支軸８の周りでの回転ができない状態に係止し、前記可動体９が水平支軸８の周りで回転したときに前記コイルバネ１１ａ，１１ｂが捩じられるように構成することも可能である。 Further, as described in claim 8, between the coil springs 11a and 11b and the movable body 9, thrust receiving members 26a and 26b for reducing the relative rotational slip resistance of the both can be interposed. Conversely, as described in claim 9, the inner ends of the coil springs 11a and 11b are locked to the movable body 9, and the outer ends of the coil springs 11a and 11b are arranged around the horizontal support shaft 8. The coil springs 11a and 11b can be twisted when the movable body 9 rotates around the horizontal support shaft 8 so that the coil springs 11a and 11b are twisted.

更に、請求項１０に記載のように、荷収納区画１の左右両隔壁枠２を構成する前後一対の支柱材４ａ，４ｂは、互いに対向する内側が開放した横断面形状に構成し、これら前後両支柱材４ａ，４ｂの側壁板部４ｃに取り付けられて荷収納区画１側に延出する前後一対のアーム材７ａ，７ｂに前記水平支軸８の両端を取り付けることができる。 Furthermore, as described in claim 10, the pair of front and rear support columns 4a and 4b constituting the left and right partition wall frames 2 of the load storage section 1 are configured in a cross-sectional shape with the inner sides facing each other open, Both ends of the horizontal support shaft 8 can be attached to a pair of front and rear arm members 7a and 7b which are attached to the side wall plate portions 4c of both support members 4a and 4b and extend to the load storage section 1 side.

本発明に係る荷保管用ラックの荷支持装置においては、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）に揺れ動いたときには、前後に揺れ動くラック側の隔壁枠と荷を支持し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前後方向の相対移動を生じさせ、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をなくし、以て、開放された通路側（前方）にラックが揺れ動いたときに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ような現象を生じさせないで済む。又、ラックが左右横方向に揺れ動いたときには、慣性で荷受け部材上を左右横方向に移動しょうとする荷が荷受け部材の荷受け面との間の摩擦力を介して当該荷受け部材を、前後方向の水平軸心の周りに回転させるので、当該荷と荷受け部材の荷受け面との間には左右横方向の相対滑りを生じさせないで済む。そして荷受け部材の前後方向の移動や前後方向水平軸心の周りの回転は付勢手段の付勢力に抗して行われており、荷受け部材に作用していた前後方向の外力や水平軸心の周りの回転力が減少したり無くなったときには、前記付勢手段の付勢力により、荷受け部材は前後移動領域内の定位置に復帰し、或いは回転領域内の中立位置に自動復帰するので、荷受け部材（荷受け面）上で荷が相対的に滑動しない限り荷の位置が前後方向或いは左右方向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。 In the load supporting device for a load storage rack according to the present invention, when the rack is swung in the front-rear depth direction (the length direction of the load receiving member) of the load storage section when an earthquake occurs, the rack-side partition frame and load are swung back and forth. The load receiving member supporting the load causes relative movement in the front-rear direction against the biasing force of the biasing means, and the load receiving member supporting the load is integrated with the rack at the same speed and with the same amplitude. Eliminates swinging in the front-rear direction, so when the rack swings to the open passage side (forward), the load slides on the load receiving member due to inertia and sometimes drops to the passage side. It is not necessary to cause such a phenomenon. Further, when the rack swings in the lateral direction, the load that is about to move in the lateral direction on the load receiving member due to inertia moves the load receiving member in the front-rear direction via a frictional force with the load receiving surface of the load receiving member. Since the rotation is performed around the horizontal axis, it is not necessary to cause a relative slip in the lateral direction between the load and the load receiving surface of the load receiving member. The movement of the load receiving member in the front-rear direction and the rotation around the horizontal axis of the front-rear direction are performed against the urging force of the urging means, and the external force in the front-rear direction acting on the load receiving member and the horizontal axis When the surrounding rotational force decreases or disappears, the load receiving member returns to a fixed position in the forward / backward movement region or automatically returns to a neutral position in the rotation region by the biasing force of the biasing means. As long as the load does not slide relatively on the (load receiving surface), the load position does not fluctuate in the front-rear direction or the left-right direction, and the load can be safely and continuously stored.

上記のように、本発明に係る荷保管用ラックの荷支持装置によれば、ラックが荷収納区画の前後奥行き方向だけでなく左右横方向に揺れ動いたときにも、荷受け部材上での荷の滑動を防止することができる。従って、地震発生時に荷が荷収納区画から通路側へ飛び出して落下するような事故だけでなく、荷が荷収納区画内で左右横方向に滑動して荷受け部材の片側からずり落ちるなどの事故も未然に防止することができ、高い免震効果が期待できる。 As described above, according to the load supporting device for a load storage rack according to the present invention, even when the rack swings not only in the front-rear depth direction but also in the left-right lateral direction of the load storage section, Sliding can be prevented. Therefore, not only accidents where the load jumps out from the load storage compartment to the aisle side when an earthquake occurs, but also accidents such as the sliding of the load from side to side in the load storage compartment and falling from one side of the load receiving member. Therefore, it can be expected to have a high seismic isolation effect.

尚、請求項２に記載の構成によれば、１つの荷受け部材に対して１本の水平支軸を架設するだけで、当該水平支軸を荷受け部材の前後方向移動時のガイドレールと水平軸心周りの回転の中心軸との両方に兼用させることができ、又、荷受け部材を水平軸心周りの回転領域の中立位置に付勢保持する付勢手段が、バネではなく重錘によって構成されるので、全体として、請求項１に記載の本発明を簡単な構成で容易に実施することができる。この場合に請求項３に記載の構成によれば、荷受け部材をして、その前後移動領域内の中間位置を中心にして前後何れ側にも相対移動させることができ、ラックの前後方向の揺れに対する免震効果を一層高めることができる。 In addition, according to the structure of Claim 2, a guide rail and a horizontal axis | shaft at the time of moving the said horizontal support shaft to the front-back direction of the load receiving member only by constructing one horizontal support shaft with respect to one load receiving member. The urging means for urging and holding the load receiving member at the neutral position of the rotation region around the horizontal axis is constituted by a weight instead of a spring. Therefore, as a whole, the present invention described in claim 1 can be easily implemented with a simple configuration. In this case, according to the configuration of the third aspect, the load receiving member can be moved relative to either the front or rear side around the intermediate position in the front-rear movement region, and the rack swings in the front-rear direction. Can further enhance the seismic isolation effect.

又、請求項４に記載の構成によれば、荷受け部材の左右回転領域を安全角度範囲内に制限して安全性を高めることができる。又、請求項５に記載の構成によれば、水平支軸の架設が容易になり、しかも、当該水平支軸に遊嵌されるコイルバネの長さを、水平支軸の端部を支持するアーム材と可動体との間の距離よりも短くし、可動体（荷受け部材）の前後方向移動を制限するストッパー部材を可動体に近い位置に簡単容易に配設することができる。この場合、請求項６に記載の構成によれば、荷受け部材の回転制限手段として特別な部材を追加する必要がなくなり、荷受け部材の回転制限手段を組み込んだ構成を簡単にして安価に実施することができる。 Moreover, according to the structure of Claim 4, the left-right rotation area | region of a load receiving member can be restrict | limited to a safe angle range, and safety can be improved. According to the structure of claim 5, the horizontal support shaft can be easily installed, and the length of the coil spring that is loosely fitted to the horizontal support shaft is set to the arm that supports the end of the horizontal support shaft. A stopper member that is shorter than the distance between the material and the movable body and restricts the movement of the movable body (load receiving member) in the front-rear direction can be easily and easily disposed at a position close to the movable body. In this case, according to the configuration described in claim 6, it is not necessary to add a special member as the rotation limiting means for the load receiving member, and the configuration incorporating the rotation limiting means for the load receiving member is simplified and implemented at low cost. Can do.

又、請求項７に記載の構成によれば、長尺の荷受け部材も前後方向に適当に離した前側可動体と後側可動体とを介して安定的に水平支軸で支持させることができ、しかも、この前後２つの可動体を互いに連結する連結部材に重錘を取り付けるようにしたので、前後方向長さの短い重錘であっても、前後両可動体の下側に安定的に取り付けることができる。 Moreover, according to the structure of Claim 7, a long load receiving member can also be stably supported by a horizontal spindle through the front movable body and the rear movable body which are appropriately separated in the front-rear direction. In addition, since the weight is attached to the connecting member that connects the two front and rear movable bodies to each other, even if the weight has a short length in the front-rear direction, it is stably attached to the lower side of the front and rear movable bodies. be able to.

尚、請求項８に記載の構成によれば、荷受け部材が水平支軸の周りに回転動作するとき、コイルバネにその回転力を作用させないで済み、荷受け部材の回転動作を円滑に行わせることができるが、請求項９に記載の構成によれば、荷受け部材が水平支軸の周りに回転動作するとき、当該可動体（荷受け部材）の回転力を、前後移動領域内の定位置に荷受け部材を付勢保持させるためのコイルバネに捩じり力として作用させることができるので、そのコイルバネの捩じり反力で荷受け部材を復帰回転方向に付勢することができ、単に重錘による復帰回転力を補えるだけでなく、当該回転力を速やかに減衰させる効果も期待でき、免震効果をより一層高めることができる。 According to the configuration described in claim 8, when the load receiving member rotates around the horizontal support shaft, it is not necessary to apply the rotational force to the coil spring, and the load receiving member can be smoothly rotated. However, according to the configuration described in claim 9, when the load receiving member rotates around the horizontal support shaft, the rotational force of the movable body (load receiving member) is placed at a fixed position in the front-rear movement region. Since the coil spring can be made to act as a torsional force, the torsional reaction force of the coil spring can urge the load receiving member in the return rotation direction, and simply return by the weight. Not only can the force be compensated, but also the effect of quickly damaging the rotational force can be expected, and the seismic isolation effect can be further enhanced.

更に、請求項１０に記載の構成によれば、ラックの隔壁枠を構成する支柱材の側壁板部の左右横方向の弾性変形を利用して、荷受け部材に対する免震効果を補わせることができる。 Furthermore, according to the structure of Claim 10, the seismic isolation effect with respect to a load receiving member can be supplemented using the elastic deformation of the side wall board part of the support | pillar material which comprises the partition frame of a rack. .

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）で各隔壁枠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の左右両隔壁枠２に隣接するように同一レベルで架設されている。 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 material (not shown) at a level that does not interfere with loading and unloading. The pair of left and right load receiving members 3 are installed at the same level so as to be adjacent to the left and right partition wall frames 2 of the load storage section 1.

以下、本発明の一実施形態を具体的に説明すると、図２に示すように、隔壁枠２を構成する前後一対の支柱材４ａ，４ｂには、荷受け部材３の架設レベルに対応する高さで、前後一対のアーム材７ａ，７ｂが取り付けられ、この前後一対のアーム材７ａ，７ｂ間に、各荷受け部材３の真下位置で前後水平向きに位置する水平支軸８が架設されている。この水平支軸８には、前側可動体９ａと後側可動体９ｂ、及び前後両可動体９ａ，９ｂどうしをその下側で連結一体化する連結部材９ｃから成る可動体９が、前記水平支軸８の軸心方向（前後水平方向）の移動と当該水平支軸８の軸心の周りでの回転とが可能なように外嵌支持され、この可動体９の前側可動体９ａと後側可動体９ｂの上側に前記荷受け部材３が載置固定されている。１０は付勢手段であって、可動体９の前側可動体９ａと前側アーム材７ａとの間で水平支軸８に遊嵌された圧縮コイルバネ１１ａと、可動体９の後側可動体９ｂと後側アーム材７ａとの間で水平支軸８に遊嵌された圧縮コイルバネ１１ｂと、前記連結部材９ｃの下側に取り付けられた重錘１１ｃとから構成されている。 Hereinafter, an embodiment of the present invention will be described in detail. As shown in FIG. 2, the pair of front and rear support members 4 a and 4 b constituting the partition wall frame 2 has a height corresponding to the installation level of the load receiving member 3. Thus, a pair of front and rear arm members 7a and 7b are attached, and a horizontal support shaft 8 is installed between the pair of front and rear arm members 7a and 7b so as to be positioned horizontally below the load receiving member 3 in the horizontal direction. The horizontal support shaft 8 includes a movable body 9 including a front movable body 9a, a rear movable body 9b, and a connecting member 9c for connecting and integrating the front and rear movable bodies 9a and 9b on the lower side. The front movable body 9a and the rear side of the movable body 9 are supported by external fitting so that the shaft 8 can move in the axial direction (front-rear horizontal direction) and rotate about the axis of the horizontal support shaft 8. The load receiving member 3 is placed and fixed on the upper side of the movable body 9b. Reference numeral 10 denotes an urging means, which includes a compression coil spring 11a loosely fitted to the horizontal support shaft 8 between the front movable body 9a and the front arm member 7a of the movable body 9, and a rear movable body 9b of the movable body 9. A compression coil spring 11b loosely fitted to the horizontal support shaft 8 between the rear arm member 7a and a weight 11c attached to the lower side of the connecting member 9c.

更に詳細構造を図２〜図８に基づいて説明すると、隔壁枠２の前後両支柱材４ａ，４ｂは、互いに対向する内側が開放する横断面形状のもので、前後一対のアーム材７ａ，７ｂの内端に固着された取付部材１２は、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に外嵌する状態でピン１３により係止されている。水平支軸８は、前後一対のアーム材７ａ，７ｂに取り付けられた軸受部材１４に両端が内嵌することにより水平に架設されている。前記荷受け部材３は、ハット形断面形状のもので、水平支軸８と同心円弧状の荷受け面３ａと、左右両側への張出板部３ｂ，３ｃとを備えており、この左右両側への張出板部３ｂ，３ｃが前後両可動体９ａ，９ｂの上面に載置された状態でボルト３ｄにより固定されている。 The detailed structure will be described with reference to FIGS. 2 to 8. Both the front and rear support members 4a and 4b of the partition wall frame 2 have a cross-sectional shape in which the inner sides facing each other open, and a pair of front and rear arm members 7a and 7b. The attachment member 12 fixed to the inner end of the support member 12 is locked by a pin 13 so as to be fitted on the side wall plate portion 4c having a square cross section projecting sideways of the support members 4a and 4b. The horizontal support shaft 8 is installed horizontally by fitting both ends into a bearing member 14 attached to a pair of front and rear arm members 7a and 7b. The load receiving member 3 has a hat-shaped cross-sectional shape, and includes a horizontal support shaft 8 and a concentric arc-shaped load receiving surface 3a, and projecting plate portions 3b and 3c on the left and right sides. The output plate portions 3b and 3c are fixed by bolts 3d in a state where they are placed on the upper surfaces of both the front and rear movable bodies 9a and 9b.

前後両可動体９ａ，９ｂには、水平支軸８に対する移動と回転とが円滑に行えるようにするためのスライド回転両用軸受１５が内装され、連結部材９ｃはアングル材から成るもので、その水平板部１６の前後両端部が前後両可動体９ａ，９ｂの下側面にボルト１７で固定され、当該水平板部１６の一側辺から垂下する垂直板部１８の側面に複数枚の重錘板１９が重ねられた状態で前後２本のボルトナット２０により取り付けられることにより、重錘１１ｃが構成されている。 Both the front and rear movable bodies 9a and 9b are provided with a slide rotation dual bearing 15 for smoothly moving and rotating with respect to the horizontal support shaft 8, and the connecting member 9c is made of an angle material. Both front and rear end portions of the plate portion 16 are fixed to the lower side surfaces of the front and rear movable bodies 9a and 9b with bolts 17, and a plurality of weight plates are provided on the side surface of the vertical plate portion 18 depending from one side of the horizontal plate portion 16. The weight 11c is configured by being attached by two bolts and nuts 20 at the front and rear in a state in which 19 is overlapped.

水平支軸８の両端を支持する前後一対のアーム材７ａ，７ｂには、水平支軸８の両端部が貫通する下側開放の箱型部材２１ａ，２１ｂが、水平支軸８の周囲に配置された複数本のボルトナット２２により、アーム材７ａ，７ｂからの距離調整可能に取り付けられ、当該箱型部材２１ａ，２１ｂのアーム材７ａ，７ｂに近い側の垂直板部がバネ受け座２３となり、当該箱型部材２１ａ，２１ｂの各可動体９ａ，９ｂに近い側の垂直板部２４には、各可動体９ａ，９ｂに向かって突出する左右一対のストッパー部材２５ａ，２５ｂが取り付けられている。而して、圧縮コイルバネ１１ａ，１１ｂは、前記箱型部材２１ａ，２１ｂの垂直板部２４を貫通する状態で水平支軸８の両端部に遊嵌されて軸方向に圧縮され、一端がバネ受け座２３に当接すると共に他端が各可動体９ａ，９ｂに取り付けられたスラスト受け部材（スラストワッシャーなど）２６ａ，２６ｂに当接するように、バネ受け座２３と各可動体９ａ，９ｂとの間に介装されている。 In the pair of front and rear arm members 7 a and 7 b that support both ends of the horizontal support shaft 8, lower open box-shaped members 21 a and 21 b that pass through both ends of the horizontal support shaft 8 are arranged around the horizontal support shaft 8. The plurality of bolts and nuts 22 are attached so that the distance from the arm members 7a and 7b can be adjusted, and the vertical plate portion on the side of the box-shaped members 21a and 21b close to the arm members 7a and 7b serves as a spring seat 23. A pair of left and right stopper members 25a and 25b projecting toward the movable bodies 9a and 9b are attached to the vertical plate portion 24 on the side close to the movable bodies 9a and 9b of the box-shaped members 21a and 21b. . Thus, the compression coil springs 11a and 11b are loosely fitted to both end portions of the horizontal support shaft 8 in a state of passing through the vertical plate portions 24 of the box-shaped members 21a and 21b and compressed in the axial direction, and one end is received by the spring receiver. Between the spring receiving seat 23 and each movable body 9a, 9b so that the other end abuts against a thrust receiving member (such as a thrust washer) 26a, 26b attached to each movable body 9a, 9b. Is intervened.

上記構成によれば、荷受け部材３は、水平支軸８の軸心方向に可動体９及び重錘１１ｃと共に前後移動自在に支承されているが、可動体９がその前後両側から付勢手段１１の付勢力、即ち、圧縮コイルバネ１１ａ，１１ｂの付勢力を受けることにより、前後移動領域内の中央定位置に保持されている。係る状態の荷受け部材３に荷収納区画１の前後奥行き方向（Ｘ方向）の外力が作用すると、その外力が圧縮コイルバネ１１ａ，１１ｂの付勢力に打ち勝つとき、荷受け部材３は、可動体９及び重錘１１ｃと共にその外力の作用方向に水平支軸８に沿って移動し、当該外力が圧縮コイルバネ１１ａ，１１ｂの付勢力より小さくなると、荷受け部材３は、圧縮コイルバネ１１ａ，１１ｂの付勢力により元の前後移動領域内の中央定位置に押し戻されて保持される。 According to the above configuration, the load receiving member 3 is supported so as to be movable back and forth together with the movable body 9 and the weight 11c in the axial center direction of the horizontal support shaft 8, but the movable body 9 is biased from both the front and rear sides thereof. , That is, the biasing force of the compression coil springs 11a and 11b, is held at the center fixed position in the front-rear movement region. When an external force in the longitudinal direction (X direction) of the load storage section 1 acts on the load receiving member 3 in such a state, when the external force overcomes the urging force of the compression coil springs 11a and 11b, the load receiving member 3 When the external force moves along with the weight 11c in the direction of the external force along the horizontal support shaft 8, and the external force becomes smaller than the urging force of the compression coil springs 11a and 11b, the load receiving member 3 is restored to the original by the urging force of the compression coil springs 11a and 11b. It is pushed back and held at the center fixed position in the forward / backward movement region.

又、荷受け部材３は、水平支軸８の軸心の周りで可動体９及び重錘１１ｃと共に回転可能に支承されているが、図５〜図７に示すように、付勢手段１１の重錘１１ｃに作用する重力による付勢力で、回転領域内の中立位置、即ち、水平支軸８の真上位置、に保持されている。係る状態荷受け部材３に水平支軸８の軸心周りの回転力が作用すると、その回転力が重錘１１ｃの重力による付勢力に打ち勝つとき、図５及び図６の仮想線と図８に示すように、荷受け部材３は、可動体９及び重錘１１ｃと共にその回転力の方向に水平支軸８の周りに回転し、当該回転力が重錘１１ｃの重力による付勢力より小さくなると、荷受け部材３は、重錘１１ｃの重力による付勢力により元の回転領域内の中立位置に復帰保持される。この荷受け部材３の回転動作のとき、図５及び図６の仮想線で示すように、荷受け部材３が水平支軸８の真上の中立位置から左右に一定角度回転したとき、当該荷受け部材３の左右両側辺（張出板部３ｂ，３ｃ）がアーム材７ａ，７ｂ又はバネ受け座２３を有する箱型部材２１ａ，２１ｂの上辺に当接し、荷受け部材３の回転領域が角度θに制限される。 Further, the load receiving member 3 is rotatably supported around the axis of the horizontal support shaft 8 together with the movable body 9 and the weight 11c. However, as shown in FIGS. The urging force by gravity acting on the weight 11c is held at a neutral position in the rotation region, that is, a position directly above the horizontal support shaft 8. When the rotational force around the axis of the horizontal support shaft 8 acts on the state load receiving member 3, when the rotational force overcomes the urging force due to the gravity of the weight 11 c, the phantom lines in FIGS. 5 and 6 and FIG. 8 are shown. Thus, the load receiving member 3 rotates around the horizontal support shaft 8 in the direction of the rotational force together with the movable body 9 and the weight 11c, and when the rotational force becomes smaller than the urging force due to the gravity of the weight 11c, the load receiving member 3 3 is returned and held at the neutral position in the original rotation region by the urging force of the weight 11c due to gravity. When the load receiving member 3 is rotated, as shown by phantom lines in FIGS. 5 and 6, when the load receiving member 3 is rotated by a certain angle from the neutral position directly above the horizontal support shaft 8, the load receiving member 3 is moved. Left and right sides (projection plate portions 3b, 3c) are in contact with the upper sides of the box members 21a, 21b having the arm members 7a, 7b or the spring seats 23, and the rotation region of the load receiving member 3 is limited to the angle θ. The

荷は、付勢手段１１で付勢保持されるホームポジションにある左右一対の荷受け部材３間に跨がって支持されるが、このとき荷の底面は、各荷受け部材３の円弧状荷受け面３ａ上に載置される。この使用状態において、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、ラックと一体の水平支軸８が付勢手段１１の圧縮コイルバネ１１ａ，１１ｂの付勢力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と水平支軸８との間で前後方向の相対移動が生じ、荷受け部材３上の荷は殆ど揺れ動かないか又は、ラック（水平支軸８）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。そしてラックの揺れが収まったときには、圧縮コイルバネ１１ａ，１１ｂの付勢力で荷受け部材３は所期の定位置に自動的に戻される。 The load is supported across a pair of left and right load receiving members 3 at a home position where the load is biased and held by the biasing means 11. At this time, the bottom surface of the load is an arc-shaped load receiving surface of each load receiving member 3. It is mounted on 3a. In this state of use, when the rack sways in the longitudinal depth direction (X direction) of the load storage section 1 due to an earthquake or the like, the horizontal support shaft 8 integrated with the rack is biased against the load receiving member 3 supporting the load. Oscillating in the same direction against the urging force of the compression coil springs 11a and 11b of the means 11, relative movement in the front-rear direction occurs between the load receiving member 3 supporting the load and the horizontal support shaft 8, and the load receiving member The load on 3 hardly swings or swings with a small amplitude behind the rack (horizontal support shaft 8), and if the speed and amplitude of the swing are within the expected range, the desired seismic isolation An effect is obtained. When the rack swing is settled, the load receiving member 3 is automatically returned to the intended fixed position by the urging force of the compression coil springs 11a and 11b.

又、地震などによりラックが左右横方向に揺れ動いたとき、荷を支持している荷受け部材３は水平支軸８と共にラックと一体に左右横方向に揺れ動くことになるが、このとき、荷は慣性により元の静止位置に残ろうとするので、荷の底面と荷受け部材３の円弧状荷受け面３ａとの間の摩擦力により水平支軸８の軸心の周りに荷受け部材３を回転させながら、即ち、荷の底面と荷受け部材３の円弧状荷受け面３ａとの間の左右横方向の相対摺接運動は伴わずに、荷受け部材３と荷とが相対的に左右横方向に移動することになり、左右横方向の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。そしてラックの揺れが収まったときには、重錘１１ｃに作用する重力による付勢力で荷受け部材３が水平支軸８の軸心の周りに元の中立位置に戻されることにより、当該荷受け部材３上で支持されていた荷は、荷収納区画１内の左右横方向の元の位置に復帰することになる。 In addition, when the rack swings in the horizontal direction due to an earthquake or the like, the load receiving member 3 supporting the load swings in the horizontal direction integrally with the rack together with the horizontal support shaft 8. Therefore, while the load receiving member 3 is rotated around the axis of the horizontal support shaft 8 by the frictional force between the bottom surface of the load and the arcuate load receiving surface 3a of the load receiving member 3, that is, The load receiving member 3 and the load move relatively in the horizontal direction without the horizontal sliding movement in the horizontal direction between the bottom surface of the load and the arcuate load receiving surface 3a of the load receiving member 3. The desired seismic isolation effect can be obtained if the speed and amplitude of the horizontal and horizontal shaking are within the expected range. When the rack swing is settled, the load receiving member 3 is returned to the original neutral position around the axis of the horizontal support shaft 8 by the urging force due to the gravity acting on the weight 11c. The supported load returns to the original position in the left and right lateral direction in the load storage section 1.

尚、上記実施形態では、アーム材７ａ，７ｂを介して水平支軸８を支持している隔壁枠２の前後一対の支柱材４ａ，４ｂが横断面形状が開放断面であって、当該アーム材７ａ，７ｂを取付部材１２を介して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９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、水平支軸８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。 In the above-described embodiment, the pair of front and rear support columns 4a and 4b of the partition wall frame 2 supporting the horizontal support shaft 8 via the arm members 7a and 7b have an open cross-sectional shape, and the arm member Since the side wall plate portion 4c having a square cross section projecting sideways of the column members 4a and 4b to which the columns 7a and 7b are attached via the attachment member 12 can be elastically deformed in the inner and outer horizontal directions, the column members 4a and 4b. The horizontal relative movement between the support member 9 and the partition wall frame 2 is allowed to some extent if the side wall plate portion 4c having a square cross section is in a direction accompanied by elastic deformation in the inner and outer horizontal directions. Therefore, depending on the shaking direction of the rack (bulk frame 2) due to an earthquake or the like, the horizontal relative movement between the horizontal support shaft 8 and the bulkhead frame 2 may have a seismic isolation effect on the load supported by the load receiving member 3. It will also increase.

図９は、本発明の別の実施形態の要部を示しており、この図に示すように、圧縮コイルバネ１１ａ，１１ｂと前後各可動体９ａ，９ｂとの間に介装したスラスト受け部材２６ａ，２６ｂを省き、圧縮コイルバネ１１ａ，１１ｂの可動体９側の端部１１ｃを、前後各可動体９ａ，９ｂに設けたバネ係止部２７に係止すると共に、当該圧縮コイルバネ１１ａ，１１ｂのバネ受け座２３側の端部１１ｄを当該バネ受け座２３に設けたバネ係止部２８に係止している。この構成によれば、圧縮コイルバネ１１ａ，１１ｂは、水平支軸８の周りでの可動体９（荷受け部材３）の回転によりその回転方向に捩じられることになる。このため、ラックの左右横方向の揺れによって荷受け部材３が水平支軸８の周りで左右に回転するとき、圧縮コイルバネ１１ａ，１１ｂが荷受け部材３と一体に回転する可動体９を介してその回転方向に弾性に抗して捩じられ、その反力が荷受け部材３を逆方向に回転させる付勢力として作用する。従って、左右横方向にラックが揺れて、先に説明したように荷が荷受け部材３を水平支軸８の周りに回転させながら左右横方向に横動したとき、慣性で荷受け部材３と荷との左右横方向の横動が長く続くことが圧縮コイルバネ１１ａ，１１ｂの捩じり反力で抑制され、荷の左右横方向の揺れが速やかに収束し、安定することになる。 FIG. 9 shows a main part of another embodiment of the present invention. As shown in FIG. 9, a thrust receiving member 26a interposed between the compression coil springs 11a, 11b and the front and rear movable bodies 9a, 9b. 26b, the end 11c of the compression coil springs 11a, 11b on the movable body 9 side is locked to a spring locking portion 27 provided on each of the front and rear movable bodies 9a, 9b, and the springs of the compression coil springs 11a, 11b. The end 11 d on the receiving seat 23 side is locked to a spring locking portion 28 provided on the spring receiving seat 23. According to this configuration, the compression coil springs 11 a and 11 b are twisted in the rotation direction by the rotation of the movable body 9 (load receiving member 3) around the horizontal support shaft 8. For this reason, when the load receiving member 3 rotates to the left and right around the horizontal support shaft 8 due to the horizontal shaking of the rack, the compression coil springs 11 a and 11 b rotate through the movable body 9 that rotates integrally with the load receiving member 3. The reaction force acts as a biasing force that rotates the load receiving member 3 in the opposite direction. Accordingly, when the rack swings in the lateral direction, and the load laterally moves laterally while rotating the receiving member 3 around the horizontal support shaft 8 as described above, the load receiving member 3 and the load The lateral movement in the left and right lateral direction is suppressed by the torsional reaction force of the compression coil springs 11a and 11b, and the lateral vibration of the load is quickly converged and stabilized.

尚、荷受け部材３を水平支軸８の周りの回転領域内の中立位置に付勢保持する付勢手段として、捩じりコイルバネなどのスプリングを利用することも可能である。 Note that a spring such as a torsion coil spring can be used as a biasing means for biasing and holding the load receiving member 3 at a neutral position in a rotation region around the horizontal support shaft 8.

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一部切欠き平面図、Ｂ図は同荷支持装置の片側を示す側面図である。Fig. A is a partially cutaway plan view showing the load supporting device, and Fig. B is a side view showing one side of the load supporting device. 荷支持装置の片側の要部を示す縦断側面図である。It is a vertical side view which shows the principal part of the one side of a load support apparatus. 同要部を示す横断平面図である。It is a cross-sectional top view which shows the principal part. 同要部の荷支持状態を示す正面図である。It is a front view which shows the load support state of the principal part. 同要部の荷支持状態を示す箱型部材位置での縦断正面図である。It is a vertical front view in the box-shaped member position which shows the load support state of the principal part. 同要部の荷支持状態を示す可動体直前位置での縦断正面図である。It is a vertical front view in the position immediately before a movable body which shows the load support state of the principal part. 図７と同一箇所を、支持する荷が左右横方向に移動した状態で示す縦断正面図である。It is a longitudinal front view which shows the same location as FIG. 7 in the state which the load to support moved to the left-right horizontal direction. 本発明の別の実施形態の要部を示す縦断側面図である。It is a vertical side view which shows the principal part of another embodiment of this invention.

符号の説明Explanation of symbols

１荷収納区画
２隔壁枠
３荷受け部材
３ａ円弧状荷受け面
４ａ，４ｂ支柱材
５，６連結部材
７ａ，７ｂアーム材
８水平支軸
９可動体
９ａ前側可動体
９ｂ後側可動体
９ｃ連結部材
１０付勢手段
１１ａ，１１ｂ圧縮コイルバネ
１１ｃ重錘
１２取付部材
１４軸受部材
１５スライド回転両用軸受
１９重錘板
２１ａ，２１ｂ箱型部材
２３バネ受け座
２５ａ，２５ｂストッパー部材
２６ａ，２６ｂスラスト受け部材 DESCRIPTION OF SYMBOLS 1 Load storage section 2 Bulkhead frame 3 Load receiving member 3a Arc-shaped load receiving surface 4a, 4b Support | pillar material 5, 6 Connecting member 7a, 7b Arm member 8 Horizontal support shaft 9 Movable body 9a Front side movable body 9b Rear side movable body 9c Connecting member 10 Biasing means 11a, 11b Compression coil spring 11c Weight 12 Mounting member 14 Bearing member 15 Slide rotation dual bearing 19 Weight plate 21a, 21b Box-shaped member 23 Spring receiving seat 25a, 25b Stopper member 26a, 26b Thrust receiving member

Claims

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であって、前記荷受け部材は、その真下に位置する前記前後奥行き方向と平行な水平軸心と同心円弧状の荷受け面を有すると共に、前記水平軸心に沿った前後方向の移動と当該水平軸心の周りでの回転とが可能に支持され、この荷受け部材を前後移動領域内の定位置と回転領域内の中立位置とに付勢保持する付勢手段が併設されている、荷保管用ラックの荷支持装置。 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, and the load receiving member includes: It has a horizontal axis centered directly below it and a concentric arc-shaped load receiving surface parallel to the depth direction, and can be moved back and forth along the horizontal axis and rotated around the horizontal axis. A load support device for a load storage rack, which is supported and provided with biasing means for biasing and holding the load receiving member at a fixed position in the forward / backward movement region and a neutral position in the rotation region.

前記隔壁枠の内側には、前記水平軸心と同心状の水平支軸が架設され、この水平支軸に、その長さ方向の移動と軸心の周りの回転とが可能に外嵌された可動体の上側に前記荷受け部材が載置固定され、前記付勢手段は、前記可動体を前記水平支軸の長さ方向に付勢するように前記水平支軸に遊嵌されたコイルバネと、前記可動体の下側に取り付けられて当該可動体を正立姿勢に付勢する重錘とから成る、請求項１に記載の荷保管用ラックの荷支持装置。 A horizontal support shaft concentric with the horizontal shaft center is installed inside the partition wall frame, and the horizontal support shaft is externally fitted so as to be capable of moving in the length direction and rotating around the shaft center. The load receiving member is placed and fixed on the upper side of the movable body, and the biasing means is a coil spring loosely fitted to the horizontal support shaft so as to bias the movable body in the length direction of the horizontal support shaft, The load supporting device for a load storage rack according to claim 1, comprising a weight attached to a lower side of the movable body and biasing the movable body in an upright posture.

前記コイルバネは、前記可動体の前後両側に介装されて、当該可動体を前後移動領域内の中立位置に付勢保持するように構成された、請求項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 2, wherein the coil spring is interposed on both front and rear sides of the movable body so as to bias and hold the movable body in a neutral position in the front-rear movement region. Support device.

前記荷受け部材の回転領域を、回転軸心の真上の中立位置を中心に左右一定角度内に制限する、回転制限手段が設けられた、請求項１〜３の何れか１項に記載の荷保管用ラックの荷支持装置。 The load according to any one of claims 1 to 3, further comprising a rotation restricting means for restricting a rotation region of the load receiving member within a certain right and left angle around a neutral position directly above the rotation axis. Load support device for storage racks.

前記水平支軸は、前記隔壁枠に支持された前後一対のアーム材に取り付けられた軸受部材に両端が嵌合して支持され、当該アーム材には、前記水平支軸に外嵌するバネ受け座を有する部材が取り付けられ、このバネ受け座と可動体との間で前記水平支軸に前記コイルバネが遊嵌され、前記バネ受け座を有する部材に、前記コイルバネに抗しての可動体の移動を制限するストッパー部材が取り付けられている、請求項２〜４の何れか１項に記載の荷保管用ラックの荷支持装置。 The horizontal support shaft is supported by fitting both ends to a bearing member attached to a pair of front and rear arm members supported by the partition wall frame, and the arm material has a spring receiver that is externally fitted to the horizontal support shaft. A member having a seat is attached, and the coil spring is loosely fitted to the horizontal support shaft between the spring receiving seat and the movable body, and the member having the spring receiving seat is attached to the movable body against the coil spring. The load supporting device for a load storage rack according to any one of claims 2 to 4, wherein a stopper member for restricting movement is attached.

前記荷受け部材が前記水平支軸の真上の中立位置を中心に左右の回転したとき、当該荷受け部材の左右両側辺が前記アーム材又はバネ受け座を有する部材に当接して、荷受け部材の回転が制限されるように構成された、請求項５に記載の荷保管用ラックの荷支持装置。 When the load receiving member rotates left and right around a neutral position directly above the horizontal support shaft, the left and right sides of the load receiving member come into contact with the member having the arm member or the spring receiving seat, and the load receiving member rotates. The load supporting device for a load storage rack according to claim 5, wherein the load supporting device is configured to be restricted.

前記可動体は、前側可動体と後側可動体、及びこの前後２つの可動体の下側で両者を連結する連結部材により構成され、前記重錘は、前記連結部材に取り付けられている、請求項２〜６の何れか１項に記載の荷保管用ラックの荷支持装置。 The movable body is constituted by a front movable body, a rear movable body, and a connecting member that connects both of the front and rear two movable bodies, and the weight is attached to the connecting member. Item 7. The load supporting device for a load storage rack according to any one of Items 2 to 6.

前記コイルバネと可動体との間には、両者の相対回転滑り抵抗を減じるためのスラスト受け部材が介装されている、請求項２〜７の何れか１項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 any one of claims 2 to 7, wherein a thrust receiving member for reducing a relative rotational slip resistance between the coil spring and the movable body is interposed. Support device.

前記コイルバネの外端は、前記水平支軸の周りでの回転ができない状態に係止され、前記コイルバネの内端は前記可動体に係止され、前記可動体が水平支軸の周りで回転したときに前記コイルバネが捩じられるように構成された、請求項２〜７の何れか１項に記載の荷保管用ラックの荷支持装置。 The outer end of the coil spring is locked in a state where it cannot rotate around the horizontal support shaft, the inner end of the coil spring is locked by the movable body, and the movable body is rotated around the horizontal support shaft. The load supporting device for a load storage rack according to any one of claims 2 to 7, wherein the coil spring is sometimes twisted.

荷収納区画の左右両隔壁枠は、前後一対の支柱材を備え、各支柱材は互いに対向する内側が開放した横断面形状のものであって、これら前後両支柱材の側壁板部に取り付けられて荷収納区画側に延出する前後一対のアーム材に前記水平支軸の両端が取り付けられている、請求項１〜９の何れか１項に記載の荷保管用ラックの荷支持装置。
The left and right bulkhead frames of the load storage compartment are provided with a pair of front and rear support members, each support member having a cross-sectional shape with the inner sides facing each other open and attached to the side wall plate portions of these front and rear support members. The load supporting device for a load storage rack according to any one of claims 1 to 9, wherein both ends of the horizontal support shaft are attached to a pair of front and rear arm members extending toward the load storage section.