JP7101945B2

JP7101945B2 - Bogie pedestal

Info

Publication number: JP7101945B2
Application number: JP2018091586A
Authority: JP
Inventors: 一輝春日
Original assignee: Sanko Co Ltd
Current assignee: Sanko Co Ltd
Priority date: 2018-05-10
Filing date: 2018-05-10
Publication date: 2022-07-19
Anticipated expiration: 2038-05-10
Also published as: JP2019196119A

Description

本開示は、上下に貫通した持手孔を有する台車の台盤に関する。 The present disclosure relates to a dolly base having handle holes penetrating vertically.

この種の従来の台車の台盤として、持手孔の開口縁から下方にリブが突出したものが知られている（例えば、特許文献１参照）。 As a base of a conventional bogie of this type, one in which ribs protrude downward from the opening edge of the handle hole is known (see, for example, Patent Document 1).

特許第２８４３２９５号公報（図５、図６）Japanese Patent No. 2843295 (FIGS. 5 and 6)

上述した従来の台車の台盤では、持手孔に通した手にその開口縁の角部（具体的には、リブの先端角部）が食い込むため、台車の台盤の安定した持ち運びができないという問題があり、その問題の解決を図った台車の台盤の開発が求められている。 In the above-mentioned conventional trolley pedestal, the corner of the opening edge (specifically, the tip corner of the rib) bites into the hand passed through the handle hole, so that the trolley pedestal cannot be carried stably. There is a problem, and there is a need to develop a dolly base that solves this problem.

上記課題を解決するためになされた請求項１の発明は、下面にキャスターが固定される台盤本体と、前記台盤本体を上下に貫通する持手孔と、前記台盤本体に固定され、前記持手孔に通した手が当接し得る湾曲面を有する保護部材と、を備える台車の台盤であって、前記台盤本体は、荷物が載置される天板と、前記天板から垂下されかつ内側が前記持手孔になった垂下リブと、前記垂下リブの下端部から内側上方に折り返され、前記垂下リブとの間に空洞部を有する折り返し壁と、を備え、前記保護部材は、前記折り返し壁の上面に重ねられて前記空洞部を閉塞する台車の台盤である。 The invention according to claim 1 has been made to solve the above problems , wherein the caster is fixed to the lower surface, a handle hole penetrating the base body up and down, and the base body is fixed to the base body. A dolly base provided with a protective member having a curved surface on which a hand passed through the handle hole can come into contact, and the base body is a top plate on which luggage is placed and the top plate. The protective member includes a hanging rib that is hung and has a handle hole on the inside, and a folded wall that is folded upward from the lower end of the hanging rib and has a cavity between the hanging rib and the hanging rib. Is a trolley base that is overlapped on the upper surface of the folded wall and closes the cavity .

請求項２の発明は、前記台盤本体と前記保護部材とに設けられ、前記空洞部の内部で少なくとも一方の弾性変形を経て互いに係合し、前記保護部材を固定する係合機構を備える請求項１に記載の台車の台盤である。 The invention of claim 2 is provided with an engaging mechanism provided on the base body and the protective member, which engages with each other through at least one elastic deformation inside the cavity to fix the protective member. This is the base of the trolley according to item 1 .

請求項３の発明は、前記垂下リブと前記折り返し壁との間を連絡する複数の連絡リブと、前記複数の連絡リブのうち少なくとも一部複数の連絡リブの下部を貫通する複数の係合孔と、前記保護部材から垂下され、弾性変形を経て前記複数の係合孔に係合する複数の弾性係合片と、前記折り返し壁のうち前記係合孔を有する前記複数の連絡リブが上方から対向する位置に形成された複数の貫通孔と、を有する請求項１又は２に記載の台車の台盤である。 The invention of claim 3 is a plurality of connecting ribs connecting the hanging rib and the folded wall, and a plurality of engaging holes penetrating the lower part of at least a part of the plurality of connecting ribs. A plurality of elastic engaging pieces hanging from the protective member and engaging with the plurality of engaging holes through elastic deformation, and the plurality of connecting ribs having the engaging holes in the folded wall are formed from above. The pedestal of the trolley according to claim 1 or 2 , which has a plurality of through holes formed at opposite positions.

請求項４の発明は、前記保護部材から垂下され、弾性変形を経ずに前記複数の連絡リブに水平方向で重なる複数の位置決め突部を有する請求項３に記載の台車の台盤である。
請求項５の発明は、下面にキャスターが固定される台盤本体と、前記台盤本体を上下に貫通する持手孔と、前記台盤本体に固定され、前記持手孔に通した手が当接し得る湾曲面を有する保護部材と、を備える台車の台盤であって、前記台盤本体は、荷物が載置される天板と、前記天板から垂下されかつ内側が前記持手孔になった垂下リブと、を備え、前記保護部材は、前記垂下リブの内側又は外側に空間を空けて嵌合される枠壁と、前記枠壁の上下方向の一端部から前記垂下リブ側に屈曲する端部壁と、前記枠壁から突出して少なくとも一部が前記垂下リブの内側面又は外側面に突き合わされると共に上下方向の端部が前記端部壁に接続されている複数の補強リブと、を有し、前記枠壁と前記端部壁との角部の外面が前記湾曲面になっている台車の台盤である。 The invention of claim 4 is the trolley base according to claim 3 , which has a plurality of positioning protrusions hanging from the protective member and horizontally overlapping the plurality of connecting ribs without undergoing elastic deformation.
In the invention of claim 5, a dolly body in which casters are fixed to the lower surface, a handle hole that penetrates the dolly body up and down, and a hand that is fixed to the dolly body and passed through the handle hole are provided. A dolly pedestal including a protective member having a curved surface that can come into contact with the dolly. The protective member is provided with a frame wall that is fitted with a space inside or outside the hanging rib, and from one end of the frame wall in the vertical direction to the hanging rib side. A plurality of reinforcing ribs projecting from the frame wall and having at least a part abutted against the inner surface or the outer surface of the hanging rib and having a vertical end connected to the end wall. It is a dolly base having the above-mentioned, and the outer surface of the corner portion between the frame wall and the end wall is the curved surface.

請求項６の発明は、下面にキャスターが固定される台盤本体と、前記台盤本体を上下に貫通する持手孔と、前記台盤本体に固定され、前記持手孔に通した手が当接し得る湾曲面を有する保護部材と、を備える台車の台盤であって、前記台盤本体は、荷物が載置される天板と、前記天板から垂下されかつ内側が前記持手孔になった垂下リブと、を備え、前記保護部材は、前記垂下リブを包囲する枠壁と、前記枠壁の下端から内側に屈曲する底壁と、前記枠壁の内面と前記底壁の上面との間を接続しかつ前記枠壁と前記垂下リブとの間に挟まれる複数の補強リブと、を有して前記垂下リブの外側に嵌合され、前記枠壁と前記底壁との角部の外面が前記湾曲面になっている台車の台盤である。In the invention of claim 6, a dolly body in which casters are fixed to the lower surface, a handle hole that penetrates the dolly body up and down, and a hand that is fixed to the dolly body and passed through the handle hole are provided. A dolly pedestal including a protective member having a curved surface that can be abutted against the dolly. The protective member includes a frame wall surrounding the hanging rib, a bottom wall that bends inward from the lower end of the frame wall, an inner surface of the frame wall, and an upper surface of the bottom wall. A plurality of reinforcing ribs that are connected to and sandwiched between the frame wall and the hanging ribs and are fitted to the outside of the hanging ribs, and the corners between the frame wall and the bottom wall. This is a dolly base whose outer surface is a curved surface.
請求項７の発明は、下面にキャスターが固定される台盤本体と、前記台盤本体を上下に貫通する持手孔と、前記台盤本体に固定され、前記持手孔に通した手が当接し得る湾曲面を有する保護部材と、を備える台車の台盤であって、前記台盤本体は、荷物が載置される天板と、前記天板から垂下されかつ内側が前記持手孔になった垂下リブと、前記垂下リブの上下方向の途中位置から内側に張り出すフランジと、を備え、前記保護部材には、前記垂下リブの内側に空間を空けて嵌合し、前記フランジの上面内縁部に突き合わされる第１の枠壁と、前記第１の枠壁の上端から外側に屈曲し、前記垂下リブの内面上端部に突き合わされる天井壁とを有する第１の前記保護部材と、前記垂下リブの内側に空間を空けて嵌合し、前記フランジの下面内縁部に突き合わされる第２の枠壁と、前記第２の枠壁の下端から外側に屈曲し、前記垂下リブの内面下端部に突き合わされる底壁とを有する第２の前記保護部材と、が含まれ、前記第１の枠壁と前記天井壁との角部の外面と、前記第２の枠壁と前記底壁との角部の外面とが、前記湾曲面になっている台車の台盤である。According to the invention of claim 7, a pedestal body in which casters are fixed to the lower surface, a handle hole that penetrates the pedestal body up and down, and a hand that is fixed to the pedestal body and passed through the handle hole are provided. A pedestal of a trolley including a protective member having a curved surface that can come into contact with the pedestal. The hanging rib is provided with a hanging rib and a flange that projects inward from a position in the middle of the hanging rib in the vertical direction. The first protective member having a first frame wall abutted against the inner edge of the upper surface and a ceiling wall bent outward from the upper end of the first frame wall and abutted against the upper end of the inner surface of the hanging rib. A second frame wall that fits inside the hanging rib with a space and is abutted against the inner edge of the lower surface of the flange, and the hanging rib that bends outward from the lower end of the second frame wall. 2. The outer surface of the corner portion with the bottom wall is the base plate of the trolley having the curved surface.

請求項１，５，６，７の台車の台盤によれば、湾曲面を有する保護部材が台盤本体に固定されたことで、持手孔の開口縁の角部が手に食い込むことが防がれ、台車の安定した持ち運びが可能になる。 According to the dolly base of claims 1 , 5, 6 and 7 , since the protective member having a curved surface is fixed to the dolly body, the corner portion of the opening edge of the handle hole may bite into the hand. It is prevented and the dolly can be carried stably.

請求項１の台車の台盤では、台盤本体と保護部材とによって閉塞される空洞部により持手孔の周囲を、厚くて軽い中空構造の壁にすることができ、持手孔に通した手に対する応力集中を抑えることができる。また、垂下リブとその下端部から内側に折り返された折り返し壁との間に空洞部を形成されるので、保護部材を折り返し壁の上面に重ねて空洞部を容易に塞ぐことができる。 In the trolley pedestal of claim 1 , the circumference of the handle hole can be made into a thick and light hollow structure wall by the hollow portion closed by the pedestal body and the protective member, and the wall is passed through the handle hole . It is possible to suppress stress concentration on the hand. Further, since the hollow portion is formed between the hanging rib and the folded wall folded inward from the lower end portion thereof, the protective member can be laminated on the upper surface of the folded wall to easily close the hollow portion.

請求項２の台車の台盤では、保護部材は、係合機構によって容易に台盤本体に固定され、その係合機構は空洞部に配置されているので簡単に外れることはなく、固定が安定する。 In the trolley pedestal of claim 2 , the protective member is easily fixed to the pedestal body by an engaging mechanism, and since the engaging mechanism is arranged in the cavity, it does not easily come off and the fixing is stable. do.

請求項３の構成によれば、垂下リブと折り返し壁との間に複数の連絡リブが差し渡されて補強され、それら連絡リブが保護部材から垂下された複数の弾性係合片と係合して保護部材を固定する係合相手に兼用される。また、折り返し壁に形成された複数の貫通孔によって、空洞部に水が溜まることを防ぐことができる。 According to the configuration of claim 3 , a plurality of connecting ribs are extended and reinforced between the hanging ribs and the folded wall, and the connecting ribs engage with a plurality of elastic engaging pieces suspended from the protective member. It is also used as an engaging partner for fixing the protective member. Further, the plurality of through holes formed in the folded wall can prevent water from accumulating in the cavity.

請求項４の構成によれば、複数の連絡リブに保護部材から垂下された複数の位置決め突部が重なり、複数の連絡リブを保護部材の位置決めに兼用することができる。 According to the configuration of claim 4 , a plurality of positioning protrusions hung from the protective member overlap the plurality of connecting ribs, and the plurality of connecting ribs can also be used for positioning the protective member.

発明の実施形態に係る台車の斜視図Perspective view of the dolly according to the embodiment of the invention 台盤の下面側の斜視図Perspective view of the underside of the pedestal 台盤の側断面図Side sectional view of the pedestal 台盤本体の持手孔の斜視図Perspective view of the handle hole of the base body 保護部材の上面側の斜視図Top side perspective view of the protective member 保護部材の下面側の斜視図Perspective view of the lower surface side of the protective member 台盤の一部破断の斜視図Perspective view of partial breakage of the pedestal 台盤の一部破断の斜視図Perspective view of partial breakage of the pedestal 台盤の持手孔の斜視図Perspective view of the handle hole of the pedestal 変形例に係る持手孔の側断面図Side sectional view of the handle hole according to the modified example

以下、図１～図９に示された本実施形態の台車１０の台盤１１について説明する。図１に示すように、本実施形態の台車１０の台盤１１は、台盤本体１１Ｈに、保護部材３０、滑止部材１２Ｂ等の複数の部品を組み付けてなる。台盤本体１１Ｈは、例えば、樹脂の射出成形品であって、平面形状が長方形の天板１２の下面に図２に示した格子状の下面リブ１４を備える。また、天板１２の下面外縁部からは、図１に示した側壁１３が垂下されて下面リブ１４を包囲している。 Hereinafter, the dolly 11 of the dolly 10 of the present embodiment shown in FIGS. 1 to 9 will be described. As shown in FIG. 1, the dolly 11 of the dolly 10 of the present embodiment is formed by assembling a plurality of parts such as a protective member 30 and a non-slip member 12B to the dolly main body 11H. The base plate main body 11H is, for example, an injection-molded product of resin, and includes a grid-shaped lower surface rib 14 shown in FIG. 2 on the lower surface of a top plate 12 having a rectangular planar shape. Further, a side wall 13 shown in FIG. 1 hangs down from the outer edge of the lower surface of the top plate 12 and surrounds the lower surface rib 14.

天板１２の下面四隅には、キャスター９０が取り付けられている。また、天板１２の長手方向の一端部には、１対の支持孔１２Ｃが形成されて、それらにゲート形の手押部材９１が嵌合されている。その手押部材９１は、下端部にヒンジ部９１Ｈを備え、台盤１１上に折り畳み可能になっている。さらに、天板１２の上面の複数箇所には、円形の陥没部１２Ａが形成され、それらに嵌合された滑止部材１２Ｂが天板１２の上面から僅かに突出している。 Casters 90 are attached to the four corners of the lower surface of the top plate 12. Further, a pair of support holes 12C are formed at one end of the top plate 12 in the longitudinal direction, and a gate-shaped hand push member 91 is fitted into them. The hand push member 91 is provided with a hinge portion 91H at the lower end portion, and can be folded on the base plate 11. Further, circular recessed portions 12A are formed at a plurality of locations on the upper surface of the top plate 12, and the non-slip member 12B fitted thereto slightly protrudes from the upper surface of the top plate 12.

台盤本体１１Ｈの縦横の中央には、持手孔１５が形成されている。図９に示すように、持手孔１５は、例えば、角部をＲ面取りされた長方形をなしている。また、図２に示すように、天板１２における持手孔１５の開口縁から垂下リブ１６が垂下されている。垂下リブ１６の１対の長辺部１６Ａは、天板１２の長手方向に延びる１対の下面リブ１４の一部で構成され、垂下リブ１６の１対の短辺部１６Ｂの中央には、天板１２の長手方向の延びる下面リブ１４が直交している。なお、垂下リブ１６及びその周囲の下面リブ１４の下面は、側壁１３の下面より上方に位置している（図３参照）。 A handle hole 15 is formed in the vertical and horizontal centers of the base body 11H. As shown in FIG. 9, the handle hole 15 has, for example, a rectangle whose corners are R-chamfered. Further, as shown in FIG. 2, the hanging rib 16 hangs down from the opening edge of the handle hole 15 in the top plate 12. The pair of long side portions 16A of the hanging rib 16 is composed of a part of a pair of lower surface ribs 14 extending in the longitudinal direction of the top plate 12, and a pair of short side portions 16B of the hanging rib 16 is located in the center of the pair of short side portions 16B. The lower surface ribs 14 extending in the longitudinal direction of the top plate 12 are orthogonal to each other. The lower surface of the hanging rib 16 and the lower surface rib 14 around the hanging rib 16 is located above the lower surface of the side wall 13 (see FIG. 3).

図３に示すように、垂下リブ１６の下端部からは、折り返し壁２０が内側上方に折り返されている。折り返し壁２０は、垂下リブ１６の下端部から内側に直角曲げされた底壁１７と、底壁１７の内縁部から上方に直角曲げされた枠壁１９と、底壁１７と枠壁１９とのそれぞれに連続する湾曲壁１８とからなる。また、枠壁１９の上面は、垂下リブ１６の上下方向の略中央に位置している。さらに、底壁１７の下面は、下面リブ１４の下面と面一になっていて、底壁１７と垂下リブ１６との外側角部は、Ｒ面取りされた湾曲面１６Ｒになっている。 As shown in FIG. 3, the folded wall 20 is folded inward and upward from the lower end of the hanging rib 16. The folded wall 20 includes a bottom wall 17 bent inward from the lower end of the hanging rib 16, a frame wall 19 bent upward from the inner edge of the bottom wall 17, and the bottom wall 17 and the frame wall 19. Each consists of a continuous curved wall 18. Further, the upper surface of the frame wall 19 is located substantially at the center of the hanging rib 16 in the vertical direction. Further, the lower surface of the bottom wall 17 is flush with the lower surface of the lower surface rib 14, and the outer corner portion of the bottom wall 17 and the hanging rib 16 is an R chamfered curved surface 16R.

なお、垂下リブ１６と天板１２の内外の角部は、面取りされていない所謂ピン角形状になっているが、面取りされていてもよい。また、枠壁１９の上面と内側面との角部は、Ｒ面取りされた円弧面１９Ｒになっている。さらに、枠壁１９の上に重なる次述する枠壁３４の下面と内側面との角部も、円弧面１９Ｒと略同一の曲率の円弧面３４Ｒになっている。 The inner and outer corners of the hanging rib 16 and the top plate 12 have a so-called pin angle shape that is not chamfered, but may be chamfered. Further, the corners between the upper surface and the inner surface of the frame wall 19 are R-chamfered arcuate surfaces 19R. Further, the corners between the lower surface and the inner surface of the frame wall 34 described below, which overlap the frame wall 19, also have an arc surface 34R having substantially the same curvature as the arc surface 19R.

図４に示すように、垂下リブ１６と枠壁１９との間の枠状の空洞部２５には、複数の第１連絡リブ２１と複数の第２連絡リブ２２とが設けられている。第２連絡リブ２２は、空洞部２５の４辺の各中央と各角部の中央とに配置されている。また、第２連絡リブ２２は、垂下リブ１６と枠壁１９と底壁１７とに直交し、枠壁１９の上面と面一の上面を有する。 As shown in FIG. 4, the frame-shaped cavity 25 between the hanging rib 16 and the frame wall 19 is provided with a plurality of first connecting ribs 21 and a plurality of second connecting ribs 22. The second connecting rib 22 is arranged at the center of each of the four sides of the cavity 25 and at the center of each corner. Further, the second connecting rib 22 is orthogonal to the hanging rib 16, the frame wall 19 and the bottom wall 17, and has an upper surface flush with the upper surface of the frame wall 19.

一方、第１連絡リブ２１は、第２連絡リブ２２の下部を台形状に切除したゲート形状をなして、空洞部２５の各辺の両端寄り位置に配置されている。その第１連絡リブ２１の下部を貫通する台形状の孔は、保護部材３０の抜け止めに利用される係合孔２１Ｃになっている。また、底壁１７には、第１連絡リブ２１の真下となる位置に、例えば円形の貫通孔２０Ａが形成されている。 On the other hand, the first connecting rib 21 has a gate shape in which the lower portion of the second connecting rib 22 is cut into a trapezoidal shape, and is arranged at positions near both ends of each side of the cavity 25. The trapezoidal hole penetrating the lower part of the first connecting rib 21 is an engaging hole 21C used to prevent the protective member 30 from coming off. Further, in the bottom wall 17, for example, a circular through hole 20A is formed at a position directly below the first connecting rib 21.

図３に示すように、台盤本体１１Ｈの持手孔１５のうち折り返し壁２０より上側部分には、保護部材３０が嵌合されている。保護部材３０は、樹脂の射出成形品であって、枠壁１９と平面形状が略同一の枠壁３４と、枠壁３４の上部から上方外側に湾曲して張り出す湾曲壁３３と、湾曲壁３３の上端部から外側水平に張り出す天井壁３２とから構成された本体部３５を有する。そして、枠壁３４が枠壁１９の上面に当接した状態で、天井壁３２が台盤本体１１Ｈの持手孔１５内で天板１２の上面より僅かに下方に位置し、保護部材３０の本体部３５によって、台盤本体１１Ｈの空洞部２５の全体が閉塞される。 As shown in FIG. 3, a protective member 30 is fitted in a portion of the handle hole 15 of the base body 11H above the folded wall 20. The protective member 30 is a resin injection-molded product, and has a frame wall 34 having substantially the same plane shape as the frame wall 19, a curved wall 33 that curves upward and outward from the upper part of the frame wall 34, and a curved wall. It has a main body portion 35 composed of a ceiling wall 32 projecting horizontally from the upper end portion of the 33. Then, in a state where the frame wall 34 is in contact with the upper surface of the frame wall 19, the ceiling wall 32 is located slightly below the upper surface of the top plate 12 in the handle hole 15 of the base body 11H, and the protective member 30 The main body 35 closes the entire cavity 25 of the base main body 11H.

図５に示すように、保護部材３０の本体部３５の外面には、複数の第１リブ３６と複数の第２リブ３７とが形成されている。図７に示すように、複数の第１リブ３６は、台盤本体１１Ｈの複数の第１連絡リブ２１より保護部材３０のコーナー部側にずれた位置に配置され、複数の第２リブ３７は、複数の第２連絡リブ２２の上に丁度重なる位置に配置されている。 As shown in FIG. 5, a plurality of first ribs 36 and a plurality of second ribs 37 are formed on the outer surface of the main body 35 of the protective member 30. As shown in FIG. 7, the plurality of first ribs 36 are arranged at positions shifted from the plurality of first connecting ribs 21 of the base body 11H toward the corner portion of the protective member 30, and the plurality of second ribs 37 are arranged. , Are arranged at positions that just overlap on the plurality of second connecting ribs 22.

図６に示すように、保護部材３０のコーナー部を挟んで隣り合う第１リブ３６，３６の外縁の縦辺同士の間には、天井壁３２の外縁湾曲部から垂下されたコーナー湾曲壁３１が差し渡され、各コーナー湾曲壁３１の中央部に第２リブ３７が接続されている。また、保護部材３０の本体部３５の縦横の各方向で対向する第１リブ３６，３６の下辺同士が底壁３８によって連絡され、その底壁３８の中央部に第２リブ３７が接続されている。 As shown in FIG. 6, between the vertical sides of the outer edges of the first ribs 36, 36 adjacent to each other across the corner portion of the protective member 30, the corner curved wall 31 hanging from the outer edge curved portion of the ceiling wall 32 Is handed over, and the second rib 37 is connected to the central portion of each corner curved wall 31. Further, the lower sides of the first ribs 36, 36 facing each other in the vertical and horizontal directions of the main body 35 of the protective member 30 are connected to each other by the bottom wall 38, and the second rib 37 is connected to the central portion of the bottom wall 38. There is.

底壁３８の下面のうち両端近傍からは弾性係合片４０が垂下され、中央近傍からは位置決片４２が垂下されている。弾性係合片４０は、第１リブ３６より底壁３８の中央側に僅かにずれた位置に配置され、位置決片４２と反対側を向いた面の下端部に係止突起４１を有する。係止突起４１は、上方に向かうに従って突出量が大きくなるくさび形状をなしている。また、弾性係合片４０のうち位置決片４２側の側面と底壁３８の下面との角部は、Ｒ面取りされている。そして、弾性係合片４０は、保護部材３０が折り返し壁２０の上に載置される過程で係止突起４１と第１連絡リブ２１との摺接によって弾性変形し、折り返し壁２０の上面に保護部材３０の下面が重なったところで弾性復帰して図７に示すように係止突起４１が係合孔２１Ｃに係合する。これにより、保護部材３０が台盤本体１１Ｈの持手孔１５内に抜け止めされる。 The elastic engaging piece 40 hangs down from the vicinity of both ends of the lower surface of the bottom wall 38, and the positioning piece 42 hangs down from the vicinity of the center. The elastic engagement piece 40 is arranged at a position slightly offset from the first rib 36 toward the center of the bottom wall 38, and has a locking projection 41 at the lower end of the surface facing the opposite side of the position determination piece 42. The locking projection 41 has a wedge shape in which the amount of protrusion increases toward the top. Further, the corners between the side surface of the elastic engagement piece 40 on the side of the position determination piece 42 and the lower surface of the bottom wall 38 are R-chamfered. Then, the elastic engaging piece 40 is elastically deformed by the sliding contact between the locking projection 41 and the first connecting rib 21 in the process in which the protective member 30 is placed on the folded wall 20, and is elastically deformed on the upper surface of the folded wall 20. When the lower surfaces of the protective member 30 overlap each other, the protective member 30 elastically returns and the locking projection 41 engages with the engagement hole 21C as shown in FIG. As a result, the protective member 30 is prevented from coming off into the handle hole 15 of the base body 11H.

位置決片４２は、弾性係合片４０より短い平坦な突片構造をなし、第２連絡リブ２２に重なる。また、図８に示すように、対向する位置決片４２同士は点対称に配置されている。詳細には、位置決片４２と第２連絡リブ２２とを上方から見ると、保護部材３０の長辺側の位置決片４２，４２は、第２連絡リブ２２，２２に対して時計回り方向にずれた位置から第２連絡リブ２２，２２に重なり、保護部材３０の短辺側の位置決片４２，４２は、第２連絡リブ２２，２２に対して反時計回り方向にずれた位置から第２連絡リブ２２，２２に重なるように配置されている。また、図６に示すように、位置決片４２の外側面は、底壁３８の外側面と面一をなして図８に示すように垂下リブ１６の内側面に重なる。一方、位置決片４２の内側面は図８に示すように枠壁１９の外側面に重なる。なお、弾性係合片４０は位置決片４２より幅狭になっていて、弾性係合片４０の内外側面は、位置決片４２の内外側面より空洞部２５の幅方向の中央側に僅かにずれた配置になっている。 The position piece 42 has a flat projecting structure shorter than the elastic engagement piece 40 and overlaps the second connecting rib 22. Further, as shown in FIG. 8, the opposing position pieces 42 are arranged point-symmetrically. Specifically, when the positioning pieces 42 and the second connecting ribs 22 are viewed from above, the positioning pieces 42, 42 on the long side of the protective member 30 are in the clockwise direction with respect to the second connecting ribs 22, 22. The positioning pieces 42, 42 on the short side of the protective member 30 overlap the second connecting ribs 22, 22 from the position deviated from the position deviated from the position deviated in the counterclockwise direction with respect to the second connecting ribs 22, 22. It is arranged so as to overlap the second connecting ribs 22 and 22. Further, as shown in FIG. 6, the outer surface of the position piece 42 is flush with the outer surface of the bottom wall 38 and overlaps the inner surface of the hanging rib 16 as shown in FIG. On the other hand, the inner surface of the position piece 42 overlaps the outer surface of the frame wall 19 as shown in FIG. The elastic engagement piece 40 is narrower than the position piece 42, and the inner / outer surface of the elastic engagement piece 40 is slightly closer to the center side in the width direction of the cavity 25 than the inner / outer surface of the position piece 42. The arrangement is misaligned.

本実施形態の台車１０の台盤１１の構成に関する説明は以上である。次に、この実施形態の作用効果について説明する。本実施形態で示した台車１０は、図１に示した手押部材９１を折り畳み、持手孔１５に手を通して持ち運ばれることがある。そのような場合、本実施形態の台車１０では、図３に示すように、持手孔１５の下縁部と上縁部とに湾曲壁１８，３３による湾曲面１８Ｍ，３３Ｍが備えられているので、手を痛めることなく、容易に台車１０を持ち上げることができる。即ち、本実施形態の台車１０の台盤１１では、湾曲面３３Ｍを有する保護部材３０を台盤本体１１Ｈに組み付けたことで、持手孔１５の開口縁の角部が手に食い込むことが防がれ、台車１０の安定した持ち運びが可能になる。 This concludes the description of the configuration of the dolly 11 of the dolly 10 of the present embodiment. Next, the action and effect of this embodiment will be described. The trolley 10 shown in the present embodiment may be carried by folding the hand pushing member 91 shown in FIG. 1 and passing it through the handle hole 15. In such a case, as shown in FIG. 3, the carriage 10 of the present embodiment is provided with curved surfaces 18M and 33M by the curved walls 18 and 33 at the lower edge portion and the upper edge portion of the handle hole 15. Therefore, the trolley 10 can be easily lifted without damaging the hands. That is, in the dolly 11 of the dolly 10 of the present embodiment, by assembling the protective member 30 having the curved surface 33M to the dolly body 11H, it is possible to prevent the corners of the opening edge of the handle hole 15 from biting into the hand. The trolley 10 can be carried stably.

また、台盤本体１１Ｈと保護部材３０とによって閉塞される空洞部２５により持手孔１５の周囲が厚くて軽い中空構造の壁になり、持手孔１５に通した手に対する応力集中が抑えられる。 Further, the hollow portion 25 closed by the base body 11H and the protective member 30 forms a wall having a thick and light hollow structure around the handle hole 15, and stress concentration on the hand passed through the handle hole 15 can be suppressed. ..

さらに、その空洞部２５は、天板１２から垂下する垂下リブ１６と、その下端部から内側に折り返された折り返し壁２０との間に形成されているので、保護部材３０を折り返し壁２０の上面に重ねて空洞部２５を容易に塞ぐことができる。 Further, since the hollow portion 25 is formed between the hanging rib 16 hanging from the top plate 12 and the folded wall 20 folded inward from the lower end portion thereof, the protective member 30 is formed on the upper surface of the folded wall 20. The cavity 25 can be easily closed.

しかも、保護部材３０を固定する係合機構である第１連絡リブ２１及び弾性係合片４０が空洞部２５内に配置されるので、それらの係合が簡単に外れることはなく、保護部材３０の固定が安定する。また、空洞部２５内の複数の第２連絡リブ２２に保護部材３０から垂下された位置決め突部である位置決片４２が重なることで、保護部材３０の位置も安定し、これにより第１連絡リブ２１及び弾性係合片４０の係合も安定する。また、第１と第２の連絡リブ２１，２２は折り返し壁２０の補強にも兼用される。さらには、折り返し壁２０の底壁１７に複数の貫通孔２０Ａを有するので、空洞部２５に水が溜まることも防がれる。 Moreover, since the first connecting rib 21 and the elastic engaging piece 40, which are the engaging mechanisms for fixing the protective member 30, are arranged in the cavity 25, their engagement does not easily come off, and the protective member 30 Is stable. Further, the position of the protective member 30 is stabilized by overlapping the position determination piece 42, which is a positioning protrusion suspended from the protective member 30, on the plurality of second connecting ribs 22 in the cavity 25, whereby the first contact is made. The engagement of the rib 21 and the elastic engagement piece 40 is also stable. Further, the first and second connecting ribs 21 and 22 are also used to reinforce the folded wall 20. Further, since the bottom wall 17 of the folded wall 20 has a plurality of through holes 20A, it is possible to prevent water from accumulating in the cavity 25.

［他の実施形態］
（１）前記実施形態では保護部材３０の上面が台盤本体１１Ｈの上面に対して僅かに下方に位置していたが、保護部材３０の上面は、台盤本体１１Ｈの上面に対して面一であってもよいし、上方に位置していてもよい。また、保護部材３０を台盤本体１１Ｈより弾性が高い部材で構成して台盤本体１１Ｈの上面から突出させて、荷物の滑り止め部に兼用してもよい。 [Other Embodiments]
(1) In the above embodiment, the upper surface of the protective member 30 is located slightly below the upper surface of the base body 11H, but the upper surface of the protective member 30 is flush with the upper surface of the base body 11H. It may be located above. Further, the protective member 30 may be formed of a member having higher elasticity than the base body 11H and may be projected from the upper surface of the base body 11H to also serve as a non-slip portion for luggage.

（２）また、保護部材３０を、台盤本体１１Ｈの持手孔１５に下方から嵌合して台盤本体１１Ｈの下面より下方に突出させ、台車１０同士を段積みした際の滑り止め部として保護部材３０を利用してもよい。具体的には、台盤本体１１Ｈの垂下リブ１６の上端部から折り返し壁２０を内側下方に折り返した構造とし、台盤本体１１Ｈより弾性が高い部材で構成された保護部材３０を折り返し壁２０に下方から合体させて台盤本体１１Ｈの下面より下方に突出させてもよい。 (2) Further, the protective member 30 is fitted into the handle hole 15 of the pedestal main body 11H from below and protrudes downward from the lower surface of the pedestal main body 11H, and a non-slip portion when the trolleys 10 are stacked. The protective member 30 may be used as the above. Specifically, the folded wall 20 is folded inward and downward from the upper end of the hanging rib 16 of the base body 11H, and the protective member 30 made of a member having higher elasticity than the base body 11H is used as the folded wall 20. It may be united from below and protrude below the lower surface of the base body 11H.

（３）また、保護部材３０を台盤本体１１Ｈと異なる色に着色してもよい。具体的には、保護部材３０の色が異なる複数の台車１０を備えて、台車１０同士を区別できるようにしてもよい。また、保護部材３０を蓄光部材で構成し、保護部材３０の発光によって台車１０を暗所で容易に見つけることができるようにしてもよい。 (3) Further, the protective member 30 may be colored in a color different from that of the base body 11H. Specifically, a plurality of trolleys 10 having different colors of the protective member 30 may be provided so that the trolleys 10 can be distinguished from each other. Further, the protective member 30 may be composed of a phosphorescent member so that the carriage 10 can be easily found in a dark place by the light emission of the protective member 30.

（４）図１０（Ａ）に例示された台車の台盤のように、台盤本体１１Ｈの垂下リブ１６の内側面における上下方向の略中央からフランジ５０が張り出し、そのフランジ５０の上と下とに保護部材３０Ａ，３０Ｂが接着材又は溶着にて固定された構造としてもよい。 (4) Like the dolly base of the dolly illustrated in FIG. 10 (A), the flange 50 projects from substantially the center in the vertical direction on the inner side surface of the hanging rib 16 of the pedestal body 11H, and is placed above and below the flange 50. The protective members 30A and 30B may have a structure fixed by an adhesive or welding.

（５）図１０（Ｂ）に例示された台車の台盤のように、ゴム製の保護部材３０Ｃの内側面の下端部を段付き状に陥没させて、その段差面６０Ｄを枠壁１９の上面に重ね、保護部材３０Ｃにおける段差面６０Ｄより下側の嵌合部６０を枠壁１９と垂下リブ１６との間に嵌合させる構造としてもよい。また、この場合、折り返し壁２０Ｂでは、例えば、枠壁１９を連絡リブ６１より上方に突出させて、連絡リブ６１より上側に保護部材３０Ｃとの嵌合部分を設ければよい。 (5) Like the dolly base illustrated in FIG. 10B, the lower end of the inner side surface of the rubber protective member 30C is recessed in a stepped manner, and the stepped surface 60D is formed on the frame wall 19. The structure may be such that the fitting portion 60 below the stepped surface 60D of the protective member 30C is fitted between the frame wall 19 and the hanging rib 16 so as to be overlapped on the upper surface. Further, in this case, in the folded wall 20B, for example, the frame wall 19 may be projected upward from the connecting rib 61, and a fitting portion with the protective member 30C may be provided above the connecting rib 61.

（６）図１０（Ｃ）に例示された台車の台盤のように、垂下リブ１６の外側に保護部材３０Ｄが嵌合される構造にしてもよい。具体的には、同図に示した垂下リブ１６は、内側下部に折り返し壁２０を有さず、外側上部に複数の補強リブ１６Ｌを有する。また、垂下リブ１６と天板１２との角部には湾曲壁５５が備えられている。一方、保護部材３０Ｄは、枠壁５３と、枠壁５３の下端部から内側水平に直角曲げされた底壁５１と、底壁５１と枠壁５３との間を連絡する湾曲壁５２とを備える。また、枠壁５３の内側には枠壁５３と底壁５１とを連絡する複数の補強リブ５４が備えられている。そして、保護部材３０Ｄが垂下リブ１６の外側に嵌合されて補強リブ１６Ｌに当接した状態に溶着、接着剤等によって固定され、底壁５１の下面と垂下リブ１６の下面とが面一をなしている。 (6) Like the dolly base illustrated in FIG. 10C, the protective member 30D may be fitted to the outside of the hanging rib 16. Specifically, the hanging rib 16 shown in the figure does not have a folded wall 20 in the inner lower portion and has a plurality of reinforcing ribs 16L in the outer upper portion. Further, a curved wall 55 is provided at a corner between the hanging rib 16 and the top plate 12. On the other hand, the protective member 30D includes a frame wall 53, a bottom wall 51 bent at a right angle inward from the lower end of the frame wall 53, and a curved wall 52 connecting the bottom wall 51 and the frame wall 53. .. Further, inside the frame wall 53, a plurality of reinforcing ribs 54 for connecting the frame wall 53 and the bottom wall 51 are provided. Then, the protective member 30D is fitted to the outside of the hanging rib 16 and welded in a state of being in contact with the reinforcing rib 16L, fixed by an adhesive or the like, and the lower surface of the bottom wall 51 and the lower surface of the hanging rib 16 are flush with each other. I'm doing it.

（７）図１０（Ｄ）に示した保護部材３０Ｅのように、図１０（Ｃ）の保護部材３０Ｄを変形させて、底壁５１の内縁部から上方に内側枠壁５７を直角曲げして枠壁５３の下部に対向させると共に、内側枠壁５７と底壁５１との間を連絡する湾曲壁５６を備えた構造としてもよい。そして、内側枠壁５７の上面を垂下リブ１６の下面に重ねてもよい。 (7) Like the protective member 30E shown in FIG. 10 (D), the protective member 30D of FIG. 10 (C) is deformed, and the inner frame wall 57 is bent at a right angle upward from the inner edge portion of the bottom wall 51. A structure may be configured in which a curved wall 56 is provided so as to face the lower portion of the frame wall 53 and to communicate between the inner frame wall 57 and the bottom wall 51. Then, the upper surface of the inner frame wall 57 may be overlapped with the lower surface of the hanging rib 16.

（８）前記実施形態の持手孔１５は、台盤１１の縦横の中央に配置されていたが、前述の特許第２８４３２９５号公報の図５に開示された台盤のように、持手孔が台盤１１の縁部に配置されていてもよい。また、持手孔１５の形状は、四角形に限定されるものではなく、四角形以外の多角形、円形、楕円形、長円形等であってもよい。 (8) The handle hole 15 of the embodiment was arranged at the center of the base 11 in the vertical and horizontal directions, but the handle hole 15 is similar to the base disclosed in FIG. 5 of Japanese Patent No. 2843295. May be arranged at the edge of the pedestal 11. Further, the shape of the handle hole 15 is not limited to a quadrangle, and may be a polygon, a circle, an ellipse, an oval, or the like other than the quadrangle.

（９）保護部材は、環状でなくてもよく、持手孔１５のうち通常の使用方法で手が宛がわれる部分のみに保護部材を備えた構造としてもよい。具体的には、台盤１１の外縁部に沿って延びる細長い長方形の持手孔を設け、その持手孔のうち台盤の外側面寄りの一方の長辺部のみに長尺状の保護部材を取り付けて、その保護部材のうち手が当接し得る部位に湾曲面を形成してもよい。また、例えば、前述の特許第２８４３２９５号公報の図５に開示された台盤のように全体が枠状をなしているものにおいて、その枠の内縁部に湾曲面付きの保護部材を取り付けて、枠の内側部分を持手孔として利用してもよい。 (9) The protective member does not have to be annular, and may have a structure in which the protective member is provided only on the portion of the handle hole 15 to which the hand is addressed by a normal usage method. Specifically, an elongated rectangular handle hole extending along the outer edge of the pedestal 11 is provided, and a long protective member is provided only on one long side of the handle hole near the outer surface of the pedestal. May be attached to form a curved surface on a portion of the protective member that the hand can come into contact with. Further, for example, in a pedestal having a frame shape as a whole, such as the pedestal disclosed in FIG. 5 of Japanese Patent No. 2843295, a protective member with a curved surface is attached to the inner edge of the frame. The inner part of the frame may be used as a hand hole.

１０台車
１１台盤
１１Ｈ台盤本体
１２天板
１５持手孔
１６垂下リブ
１６Ｒ，１８Ｍ，３３Ｍ湾曲面
２０，２０Ｂ折り返し壁
２０Ａ貫通孔
２１第１連絡リブ
２１Ｃ係合孔
２２第２連絡リブ
２５空洞部
３０，３０Ａ～３０Ｅ保護部材
４０弾性係合片
４１係止突起
４２位置決片
５４補強リブ
９０キャスター 10 trolley 11 pedestal 11H pedestal body 12 top plate 15 handle hole 16 hanging rib 16R, 18M, 33M curved surface 20, 20B folded wall 20A through hole 21 first connecting rib 21C engaging hole 22 second connecting rib 25 cavity Parts 30, 30A to 30E Protective member 40 Elastic engagement piece 41 Locking protrusion 42 Positioning piece 54 Reinforcing rib 90 Caster

Claims

下面にキャスターが固定される台盤本体と、前記台盤本体を上下に貫通する持手孔と、前記台盤本体に固定され、前記持手孔に通した手が当接し得る湾曲面を有する保護部材と、を備える台車の台盤であって、
前記台盤本体は、荷物が載置される天板と、前記天板から垂下されかつ内側が前記持手孔になった垂下リブと、前記垂下リブの下端部から内側上方に折り返され、前記垂下リブとの間に空洞部を有する折り返し壁と、を備え、
前記保護部材は、前記折り返し壁の上面に重ねられて前記空洞部を閉塞する台車の台盤。 It has a base body on which casters are fixed on the lower surface, a handle hole that penetrates the base body up and down, and a curved surface that is fixed to the base body and can be contacted by a hand that has passed through the handle hole. It is a base of a trolley equipped with a protective member.
The pedestal body is formed by a top plate on which luggage is placed, a hanging rib that hangs from the top plate and has a handle hole on the inside, and a hanging rib that is folded upward from the lower end of the hanging rib. With a folded wall having a cavity between it and the hanging ribs,
The protective member is overlapped on the upper surface of the folded wall to close the cavity. The dolly base.

前記台盤本体と前記保護部材とに設けられ、前記空洞部の内部で少なくとも一方の弾性変形を経て互いに係合し、前記保護部材を固定する係合機構を備える請求項１に記載の台車の台盤。 The base plate body and the protective member are provided with an engaging mechanism that engages with each other through at least one elastic deformation inside the cavity to fix the protective member. The dolly base of the dolly according to claim 1.

前記垂下リブと前記折り返し壁との間を連絡する複数の連絡リブと、
前記複数の連絡リブのうち少なくとも一部複数の連絡リブの下部を貫通する複数の係合孔と、
前記保護部材から垂下され、弾性変形を経て前記複数の係合孔に係合する複数の弾性係合片と、
前記折り返し壁のうち前記係合孔を有する前記複数の連絡リブが上方から対向する位置に形成された複数の貫通孔と、
を有する請求項１又は２に記載の台車の台盤。 A plurality of connecting ribs connecting the hanging rib and the folded wall,
A plurality of engaging holes penetrating the lower part of at least a part of the plurality of connecting ribs among the plurality of connecting ribs,
A plurality of elastic engaging pieces that hang down from the protective member and engage with the plurality of engaging holes through elastic deformation.
A plurality of through holes formed at positions where the plurality of connecting ribs having the engaging holes of the folded wall face each other from above.
Have Claim1 or 2The dolly base described in.

前記保護部材から垂下され、弾性変形を経ずに前記複数の連絡リブに水平方向で重なる複数の位置決め突部を有する請求項３に記載の台車の台盤。 It has a plurality of positioning protrusions that hang down from the protective member and horizontally overlap the plurality of connecting ribs without undergoing elastic deformation. Claim3The dolly base described in.

下面にキャスターが固定される台盤本体と、前記台盤本体を上下に貫通する持手孔と、前記台盤本体に固定され、前記持手孔に通した手が当接し得る湾曲面を有する保護部材と、を備える台車の台盤であって、
前記台盤本体は、荷物が載置される天板と、前記天板から垂下されかつ内側が前記持手孔になった垂下リブと、を備え、
前記保護部材は、前記垂下リブの内側又は外側に空間を空けて嵌合される枠壁と、前記枠壁の上下方向の一端部から前記垂下リブ側に屈曲する端部壁と、前記枠壁から突出して少なくとも一部が前記垂下リブの内側面又は外側面に突き合わされると共に上下方向の端部が前記端部壁に接続されている複数の補強リブと、を有し、
前記枠壁と前記端部壁との角部の外面が前記湾曲面になっている台車の台盤。 It has a base body on which casters are fixed on the lower surface, a handle hole that penetrates the base body up and down, and a curved surface that is fixed to the base body and can be contacted by a hand that has passed through the handle hole. It is a dolly base equipped with a protective member.
The pedestal body includes a top plate on which luggage is placed, and a hanging rib that hangs down from the top plate and has a handle hole on the inside.
The protective member includes a frame wall that is fitted with a space inside or outside the hanging rib, an end wall that bends from one end of the frame wall in the vertical direction to the hanging rib side, and the frame wall. It has a plurality of reinforcing ribs projecting from, at least a part of which is abutted against the inner or outer surface of the hanging rib, and whose vertical end is connected to the end wall.
The outer surface of the corner between the frame wall and the end wall is the curved surface. The dolly base.

下面にキャスターが固定される台盤本体と、前記台盤本体を上下に貫通する持手孔と、前記台盤本体に固定され、前記持手孔に通した手が当接し得る湾曲面を有する保護部材と、を備える台車の台盤であって、
前記台盤本体は、荷物が載置される天板と、前記天板から垂下されかつ内側が前記持手孔になった垂下リブと、を備え、
前記保護部材は、前記垂下リブを包囲する枠壁と、前記枠壁の下端から内側に屈曲する底壁と、前記枠壁の内面と前記底壁の上面との間を接続しかつ前記枠壁と前記垂下リブとの間に挟まれる複数の補強リブと、を有して前記垂下リブの外側に嵌合され、
前記枠壁と前記底壁との角部の外面が前記湾曲面になっている台車の台盤。 It has a base body on which casters are fixed on the lower surface, a handle hole that penetrates the base body up and down, and a curved surface that is fixed to the base body and can be contacted by a hand that has passed through the handle hole. It is a dolly base equipped with a protective member.
The pedestal body includes a top plate on which luggage is placed, and a hanging rib that hangs down from the top plate and has a handle hole on the inside.
The protective member connects between a frame wall surrounding the hanging rib, a bottom wall that bends inward from the lower end of the frame wall, and an inner surface of the frame wall and an upper surface of the bottom wall, and the frame wall. With a plurality of reinforcing ribs sandwiched between the hanging rib and the hanging rib, and fitted to the outside of the hanging rib.
The outer surface of the corner between the frame wall and the bottom wall is the curved surface. The dolly base.

下面にキャスターが固定される台盤本体と、前記台盤本体を上下に貫通する持手孔と、前記台盤本体に固定され、前記持手孔に通した手が当接し得る湾曲面を有する保護部材と、を備える台車の台盤であって、
前記台盤本体は、荷物が載置される天板と、前記天板から垂下されかつ内側が前記持手孔になった垂下リブと、前記垂下リブの上下方向の途中位置から内側に張り出すフランジと、を備え、
前記保護部材には、前記垂下リブの内側に空間を空けて嵌合し、前記フランジの上面内縁部に突き合わされる第１の枠壁と、前記第１の枠壁の上端から外側に屈曲し、前記垂下リブの内面上端部に突き合わされる天井壁とを有する第１の前記保護部材と、前記垂下リブの内側に空間を空けて嵌合し、前記フランジの下面内縁部に突き合わされる第２の枠壁と、前記第２の枠壁の下端から外側に屈曲し、前記垂下リブの内面下端部に突き合わされる底壁とを有する第２の前記保護部材と、が含まれ、
前記第１の枠壁と前記天井壁との角部の外面と、前記第２の枠壁と前記底壁との角部の外面とが、前記湾曲面になっている台車の台盤。 It has a base body on which casters are fixed on the lower surface, a handle hole that penetrates the base body up and down, and a curved surface that is fixed to the base body and can be contacted by a hand that has passed through the handle hole. It is a base of a trolley equipped with a protective member.
The base body has a top plate on which luggage is placed, a hanging rib that hangs from the top plate and has a handle hole on the inside, and a hanging rib that projects inward from an intermediate position in the vertical direction. With flange,
The protective member is fitted with a space inside the hanging rib, and is bent outward from the upper end of the first frame wall and the first frame wall that is abutted against the inner edge of the upper surface of the flange. The first protective member having a ceiling wall abutted against the upper end of the inner surface of the hanging rib is fitted with a space inside the hanging rib, and is abutted against the inner edge of the lower surface of the flange. 2.
The outer surface of the corner between the first frame wall and the ceiling wall and the outer surface of the corner between the second frame wall and the bottom wall are the curved surfaces. The dolly base.