【０００１】
【発明の属する技術分野】
本発明は、組立式パイプ棚の管継手に関し、特に管継手の奥行方向のパイプ支持部を水平方向に回動自在な構成とすることにより、棚全体を折り畳むことができるようにしたリース、レンタル用の商品ディスプレイ棚の管継手に関するものである。
【０００２】
【従来の技術】
初期の組立式折り畳みパイプ棚の管継手は、複数のパイプ嵌入部が直角に交わる基部から棚の奥行方向に延設した平板の先端部を半円状に形成し、中心に軸受孔をあけたフランジ型回動支持部を、奥行方向のパイプ嵌入部材に設けた嵌合溝に嵌入し、螺子を回動軸として係合していた。
【０００３】
しかしながら、螺子により係合された管継手は棚全体の美観を損なうため、同一の管継手に螺子止め位置の上下を変えた二種類を必要としていた外、運搬途中に螺子が緩んで抜け落ちるという欠点があった。
【０００４】
そこで、本発明の発明者は、奥行方向のパイプ嵌入部材を上下に二分割して形成する構成とし、一方に回動軸となる円柱状のダボを突設すると共に、他方に軸穴を設けて表面処理を施した後、回動支持部の軸受孔を挿通しプレス機にて圧入して一体とする発明をなし、特許を取得した。（ 特許 第３２０４４９４号 ）
【０００５】
【発明が解決しようとする課題】
該特許の管継手は美感上の問題点を解決し、パイプ棚の組み立て時の煩雑さを解消すると共に、管継手の在庫種類の削減を実現したが、１６ミリ角パイプを使用するという寸法上の制約のため圧入強度が十分とは言えず、リース、レンタル使用で頻繁に折り畳み、運送を繰り返すうち圧入部分に緩みが生じ、回動支持部を挟み込む奥行パイプ嵌入部材の嵌合溝が広がることにより、パイプ棚の奥行方向への揺れが大きくなるという問題が現れると共に、棚板の設置が水平方向の矩形パイプが形成するパイプ枠の内側４５度の傾斜面であるために、移動の際に最上段の棚板が滑落しやすいという欠点が指摘された。また、螺子方式と比較してプレス圧入工程によるコスト高を招いた。
【０００６】
【課題を解決するための手段】
本発明の組立式折り畳みパイプ棚用管継手は、該管継手の基部に延設された回動支持部に軸受孔を穿ち、該軸受孔から連接して切欠部を設けて回動軸の装着口とし、奥行パイプ嵌入部材を回動支持部への嵌合溝及び略平行楕円柱の回動軸を備えた一体成形型とすると共に、回動軸のズレを防止するために樹脂製の回動軸押さえ部材を用いる構成とした。
【０００７】
また、パイプ棚の最上部の矩形パイプ部材を係止する管継手基部上面に位置し、棚板を搭載する間口、奥行方向の該パイプ部材の傾斜面が互いに直角に交わる内隅凹部を三角形状に肉盛した。
【０００８】
【作用】
本発明の組立式折り畳みパイプ棚用管継手は、回動軸に螺子を使用することによる美感上の難点、組立上の煩雑さ、螺子の抜け落ちを排除すると共に、奥行パイプ嵌入部材を一体型とすることで回動軸の緩みによるパイプ棚の奥行方向への揺れを解消した。
【０００９】
また、パイプ棚の最上部に使用する管継手基部上面の内隅凹部を三角形状に肉盛することにより、下段の棚板が垂直方向のパイプに四隅を押さえられて安定するのと同じ条件で最上部の棚板の滑落が防止される構成とした。
【００１０】
【発明の実施の形態】
以下、本発明に係る組立式折り畳みパイプ棚用管継手（以下「管継手」という）を図面に示す実施例に基づいて詳細に説明する。図１はこの発明に係る管継手の実施例の内、最上段の角部に使用する管継手１に矩形のパイプ部材７を嵌入し、棚板９を搭載した状態の斜視図である。本発明の組み立て式折り畳みパイプ棚は間口方向と奥行方向及び高さ方向の矩形の各パイプ部材７をそれぞれ水平及び垂直方向に対して４５度回転変位した状態で管継手１により係止された立方体又は直方体又はその連続型の枠組みであり、水平方向のパイプ枠の内側４５度の傾斜面に棚板９を搭載して商品を陳列するものであって、該両傾斜面が交わって形成される管継手１の基部２の凹部には三角形状の肉盛部５が設けられ、棚板９の滑落を防止する。
【００１１】
図２は本発明に係る管継手の実施例の内、最上段の角部に使用する管継手１の全体を示す斜視図であり、間口、高さ方向のパイプ嵌入部３が一体的に形成された基部２に延設された平板状の回動支持部４に奥行パイプ嵌入部材６が回動自在に係合しており、パイプ棚組立後の運送、収納時に棚板９を外した状態で奥行方向のパイプ部材７が間口方向のパイプ部材７に当接するまで折り畳むことができる構成となっている。
【００１２】
図３は最上段の角部に使用する管継手１の奥行パイプ嵌入部材６を装着する前の状態を示す平面図であり、回動支持部４に奥行パイプ嵌入部材６の回動軸６３を挿通するための軸受孔４１が穿たれると共に、該軸受孔４１と連接して該回動軸６３の装着口となる切欠部４２が該軸受孔４１の直径よりやや狭い幅で設けられ、さらに該切欠部４２の内壁には小切欠部４２が設けられ、樹脂製の回動軸押さえ部材８の突起８１を嵌合して係止する。
【００１３】
図４は奥行パイプ嵌入部材６の側面図であり、図５は奥行パイプ嵌入部材６に設けられた回動軸６３を示す平面断面図である。奥行パイプ嵌入部材６の嵌合溝６１内に一体的に設けられた回動軸６３は、二面がパイプ嵌入部３と垂直をなしてそぎ落とされた略平行楕円柱であり、該平行楕円柱の二面幅は回動支持部４の切欠部４２の内寸より僅かに狭い。
【００１４】
図６は奥行パイプ嵌入部材６の回動軸６３が回動支持部４の軸受孔４１に装着された状態を示す管継手１の部分平面断面図であり、一体的に形成された奥行パイプ嵌入部材６は間口方向のパイプ嵌入部３と平行の向き、すなわちパイプ棚の折り畳み状態の向きで回動軸６３を回動支持部４の切欠部４２を通して挿入した後、９０度回し戻した状態、すなわちパイプ棚の使用状態の向きを示している。
この状態では回動軸６３は回動支持部４の軸受孔４１に抱き込まれて係合されており、該軸受孔に連接して設けられた装着用開口の切欠部４２に拘わらず芯ズレ、脱落は起こらない。
【００１５】
図７は樹脂製の回動軸押さえ部材８を示す拡大斜視図であり、図８は該回動軸押さえ部材８が装着されたパイプ棚の折り畳み状態と同じ向きに於ける管継手１の断面図である。樹脂製で略Ｕ字型の回動軸押さえ部材８は、奥行パイプ嵌入部材６の嵌合溝６１に挟叉された回動支持部４の切欠部４２に挿入されるとＵ字型の弾力で小切欠部４３に突起８１が嵌合して係止され、パイプ棚の折り畳み状態に於いて回動軸６３が回動支持部４の軸受孔４１から脱落するのを防止する。
【発明の効果】
本発明の組立式折り畳みパイプ棚用管継手は、奥行パイプ嵌入部材が回動軸を含めて一体的に形成されるため、パイプ棚の美観上の難点を排除するために引き起こされる組立、在庫の煩雑さを排したまま、運送、収納が頻繁に繰り返されるリース、レンタル用什器として、長期に亘る使用に耐える折り畳みパイプ棚を提供できる。また、表面処理後の圧入プレスという特別な工程が不要のため低コストを実現する。
【図面の簡単な説明】
【図１】本発明の一実施例の管継手を使用した組立式折り畳みパイプ棚の最上段の角部を示す斜視図
【図２】本発明の一実施例の管継手の全体を示す斜視図
【図３】本発明の一実施例の管継手の奥行パイプ嵌入部材装着前の形状を示す平面図
【図４】奥行パイプ嵌入部材の側面図
【図５】奥行パイプ嵌入部材の平面断面図
【図６】パイプ棚の使用時の状態に於ける奥行パイプ嵌入部材の回動軸が回動支持部の軸受孔に装着された状態を示す管継手の断面図を含む平面図
【図７】回動軸押さえ部材の拡大斜視図
【図８】パイプ棚の折り畳み状態に於ける回動軸押さえ部材が装着された管継手の断面図を含む平面図
【符号の説明】
１ 管継手
２ 基部
３ パイプ嵌入部
４ 回動支持部
５ 肉盛部
６ 奥行パイプ嵌入部材
７ パイプ部材
８ 回動軸押さえ部材
９ 棚板
４１ 軸受孔
４２ 切欠部
４３ 小切欠部
６１ 嵌合溝
６３ 回動軸
８１ 突起[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe joint of an assembling pipe shelf, and in particular, leases and rentals in which the entire shelf can be folded by making a pipe support portion in the depth direction of the pipe joint rotatable in a horizontal direction. The present invention relates to a fitting for a product display shelf.
[0002]
[Prior art]
The pipe joints of the early assembling foldable pipe shelf formed a semicircular end portion of a flat plate extending in the depth direction of the shelf from a base where a plurality of pipe fitting portions crossed at right angles, and a bearing hole was formed at the center. The flange-type rotation support portion is fitted in a fitting groove provided in a pipe fitting member in the depth direction, and is engaged with a screw as a rotation axis.
[0003]
However, pipe joints engaged by screws impair the aesthetics of the entire shelf, so two different types of pipe joints with different screwing positions were required for the same pipe joint. was there.
[0004]
Therefore, the inventor of the present invention has a configuration in which a pipe fitting member in the depth direction is formed by vertically dividing the pipe into two parts, a cylindrical dowel serving as a rotating shaft is protruded on one side, and a shaft hole is provided on the other side. After the surface treatment, the bearing was inserted into the bearing hole of the rotation support portion and press-fitted with a press machine to form an integrated body, and a patent was obtained. (Patent No. 3204494)
[0005]
[Problems to be solved by the invention]
The fittings of this patent solved the problems of aesthetics, eliminated the complexity of assembling the pipe shelves, and reduced the number of stocked fittings. However, due to the size of using 16 mm square pipes, The press-fit strength is not sufficient due to the restriction of the size, and the press-fit part becomes loose during repeated use and leasing during leasing and rental use, and the fitting groove of the depth pipe fitting member that sandwiches the rotation support part widens. Due to this, the problem that the swing of the pipe shelf in the depth direction becomes large appears, and the installation of the shelf plate is an inclined surface of 45 degrees inside the pipe frame formed by the horizontal rectangular pipe, so that when moving, It was pointed out that the top shelf could easily slide down. In addition, the cost of the press-fitting process is higher than that of the screw method.
[0006]
[Means for Solving the Problems]
The pipe joint for a folding pipe shelf according to the present invention is characterized in that a bearing hole is formed in a rotation support portion extending from the base of the pipe joint, and a notch is provided continuously from the bearing hole to mount the rotation shaft. The depth pipe fitting member is a one-piece mold having a fitting groove to the rotating support portion and a rotating shaft of a substantially parallel elliptical cylinder, and a resin-made rotating member for preventing the rotating shaft from being displaced. It was configured to use a moving shaft pressing member.
[0007]
In addition, a triangular shape is formed at the upper end of the pipe joint base for locking the rectangular pipe member at the top of the pipe shelf, the frontage for mounting the shelf board, and the inner corner recess where the inclined surfaces of the pipe member in the depth direction cross each other at right angles. Was overlaid.
[0008]
[Action]
ADVANTAGE OF THE INVENTION The assembly type folding pipe shelf pipe joint of this invention eliminates the difficulty in aesthetics by using a screw for a rotating shaft, the complexity in assembling, the falling off of a screw, and the depth pipe fitting member is integrated. By doing so, the swinging of the pipe shelf in the depth direction due to the loosening of the rotating shaft is eliminated.
[0009]
Also, by filling the inner corner recesses on the upper surface of the pipe joint base used at the top of the pipe shelf in a triangular shape, under the same conditions that the lower shelf board is stabilized by pressing the four corners with vertical pipes The top shelf is prevented from sliding down.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a pipe joint for a folding pipe shelf according to the present invention (hereinafter, referred to as a “pipe joint”) will be described in detail based on an embodiment shown in the drawings. FIG. 1 is a perspective view of a preferred embodiment of a pipe joint according to the present invention, in which a rectangular pipe member 7 is fitted into a pipe joint 1 used at the uppermost corner and a shelf plate 9 is mounted. The assembled folding pipe shelf of the present invention is a cube that is locked by the pipe joint 1 in a state where each of the rectangular pipe members 7 in the width direction, the depth direction, and the height direction is rotated and displaced by 45 degrees with respect to the horizontal and vertical directions, respectively. Or, it is a rectangular parallelepiped or its continuous type frame, in which a shelf 9 is mounted on a 45-degree inclined surface inside a horizontal pipe frame to display products, and the two inclined surfaces intersect. A triangular overlay 5 is provided in the recess of the base 2 of the pipe joint 1 to prevent the shelf 9 from slipping.
[0011]
FIG. 2 is a perspective view showing the entirety of the pipe joint 1 used at the uppermost corner in the embodiment of the pipe joint according to the present invention, in which a frontage and a pipe fitting portion 3 in the height direction are integrally formed. The depth pipe fitting member 6 is rotatably engaged with the plate-shaped rotation support portion 4 extending from the base portion 2 so that the shelf plate 9 is removed during transportation and storage after assembling the pipe shelf. , So that the pipe member 7 in the depth direction can be folded until it comes into contact with the pipe member 7 in the frontage direction.
[0012]
FIG. 3 is a plan view showing a state before the depth pipe fitting member 6 of the pipe joint 1 to be used at the uppermost corner is mounted. The rotation shaft 63 of the depth pipe fitting member 6 is attached to the rotation support portion 4. A bearing hole 41 for insertion is bored, and a cutout portion 42 that is connected to the bearing hole 41 and serves as a mounting opening for the rotating shaft 63 is provided with a width slightly smaller than the diameter of the bearing hole 41. A small notch 42 is provided on the inner wall of the notch 42, and the projection 81 of the rotating shaft pressing member 8 made of resin is fitted and locked.
[0013]
FIG. 4 is a side view of the depth pipe fitting member 6, and FIG. 5 is a cross-sectional plan view showing a rotating shaft 63 provided on the depth pipe fitting member 6. The rotating shaft 63 integrally provided in the fitting groove 61 of the depth pipe fitting member 6 is a substantially parallel elliptical cylinder whose two surfaces are cut off perpendicular to the pipe fitting portion 3, The width across two sides of the column is slightly smaller than the inner size of the notch 42 of the rotation support 4.
[0014]
FIG. 6 is a partial plan cross-sectional view of the pipe joint 1 showing a state in which the rotating shaft 63 of the depth pipe fitting member 6 is mounted in the bearing hole 41 of the rotating support part 4, and the integrally formed depth pipe fitting. The member 6 is inserted in the direction parallel to the pipe fitting part 3 in the frontage direction, that is, in the direction of the folded state of the pipe shelf, by inserting the rotating shaft 63 through the notch 42 of the rotating support part 4 and then turning it back 90 degrees. That is, the direction of the use state of the pipe shelf is shown.
In this state, the rotating shaft 63 is embraced and engaged in the bearing hole 41 of the rotating support portion 4, and the centering deviation is made irrespective of the notch 42 of the mounting opening provided in connection with the bearing hole. , No shedding.
[0015]
FIG. 7 is an enlarged perspective view showing the rotating shaft pressing member 8 made of resin. FIG. 8 is a cross-sectional view of the pipe joint 1 in the same direction as the folded state of the pipe shelf on which the rotating shaft pressing member 8 is mounted. FIG. The substantially U-shaped rotating shaft pressing member 8 made of resin is inserted into the notch 42 of the rotating support portion 4 sandwiched by the fitting groove 61 of the depth pipe fitting member 6 to have a U-shaped elasticity. As a result, the projection 81 is fitted and locked in the small notch portion 43 to prevent the pivot shaft 63 from dropping out of the bearing hole 41 of the pivot support portion 4 in the folded state of the pipe shelf.
【The invention's effect】
In the pipe joint for a folding pipe shelf according to the present invention, since the depth pipe fitting member is integrally formed including the rotating shaft, assembly and inventory caused to eliminate the aesthetic difficulty of the pipe shelf are caused. It is possible to provide a folding pipe shelf that can withstand long-term use as furniture for leasing and rental in which transportation and storage are frequently repeated while eliminating complexity. Further, since a special step of press-fitting press after surface treatment is not required, low cost is realized.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the uppermost corner of an assembling-type folded pipe shelf using the pipe joint of one embodiment of the present invention. FIG. 2 is a perspective view showing the whole of the pipe joint of one embodiment of the present invention. FIG. 3 is a plan view showing the shape of the pipe joint according to one embodiment of the present invention before the depth pipe fitting member is mounted. FIG. 4 is a side view of the depth pipe fitting member. FIG. 5 is a plan sectional view of the depth pipe fitting member. FIG. 6 is a plan view including a cross-sectional view of the pipe joint showing a state in which the rotation shaft of the depth pipe fitting member is mounted in the bearing hole of the rotation support portion when the pipe shelf is in use; FIG. 8 is an enlarged perspective view of a moving shaft pressing member. FIG. 8 is a plan view including a cross-sectional view of a pipe joint provided with a rotating shaft pressing member in a folded state of a pipe shelf.
DESCRIPTION OF SYMBOLS 1 Pipe joint 2 Base 3 Pipe fitting part 4 Rotation support part 5 Overlay part 6 Depth pipe fitting member 7 Pipe member 8 Rotating shaft holding member 9 Shelf board 41 Bearing hole 42 Notch 43 Small notch 61 Fitting groove 63 Rotating shaft 81 protrusion
