JP2004232884A - Floor structure of refrigerator-freezer vehicle - Google Patents

Floor structure of refrigerator-freezer vehicle Download PDF

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Publication number
JP2004232884A
JP2004232884A JP2003018684A JP2003018684A JP2004232884A JP 2004232884 A JP2004232884 A JP 2004232884A JP 2003018684 A JP2003018684 A JP 2003018684A JP 2003018684 A JP2003018684 A JP 2003018684A JP 2004232884 A JP2004232884 A JP 2004232884A
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Japan
Prior art keywords
ridge
slip surface
slip
ridges
floor structure
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Pending
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JP2003018684A
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Japanese (ja)
Inventor
Hideki Sugino
英樹 杉野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yano Special Purpose Vehicle Co Ltd
Original Assignee
Yano Special Purpose Vehicle Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yano Special Purpose Vehicle Co Ltd filed Critical Yano Special Purpose Vehicle Co Ltd
Priority to JP2003018684A priority Critical patent/JP2004232884A/en
Publication of JP2004232884A publication Critical patent/JP2004232884A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor structure of a refrigerator-freezer vehicle having a high non-slip effect without scratching a cargo. <P>SOLUTION: A plurality of ridges extended in a longitudinal direction are juxtaposed at prescribed intervals on a floor of a freezing and refrigerating cargo cabinet mounted on a vehicle body frame. An anti-slipping face is formed on the surface of a part of the plurality of the ridges, a slipping face is formed on the surfaces of the other protruding lines, and the anti-slipping face is provided lower than the slipping face. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、冷凍冷蔵車の床面構造に関する。
【0002】
【従来の技術】
従来、車体フレーム上に架装されたバン型の冷凍冷蔵室の内部床面構造は、図12に示すように、長手方向に伸延させた複数の凸条110を所定間隔あけて同高さで並設して貨物支持部100を形成している。なお、通常、前記各凸条110は、熱伝導性のよい素材であるアルミニウムにより成形されている。
【0003】
一般的な凸条110の形状は、立ち上がり片111と貨物受け片112とにより断面略T字状に形成されており、前記貨物受け片112の上面で積載された要保冷貨物を下方より受けるとともに、左右方向に隣接する立ち上がり片111との間に冷気環流流路113を形成している。
【0004】
かかる冷凍冷蔵車では、冷凍冷蔵室内に冷気を環流させることにより、積載した要保冷貨物、すなわち、冷凍食品(−25℃前後の低温度に保冷する必要性のある食品)や冷蔵食品(0℃〜5℃の低温度に保冷する必要性のある食品)等を所要の保冷温度にて運搬することができる。
【0005】
前記構造の冷凍冷蔵車の床面構造において、貨物支持部100が凍結していたり濡れていたりすると、貨物を取り扱う作業者が滑りやすくなるため、図示するように、凸条110の一部に滑り止めとして切欠部200を形成したり(図12(a))、滑り止めテープ300を貼着したものがあった(図12(b))。(例えば、特許文献1を参照)。
【0006】
【特許文献1】
特開2002−59779号公報
【0007】
【発明が解決しようとする課題】
ところが、前記した冷凍冷蔵車は、未だ、次のような課題を有していた。
【0008】
すなわち、前記凸条110の一部に切欠部200を単に設けただけでは、貨物を滑らせて移動させたりする際に、貨物がこれら切欠部200により擦過傷を受けるなど損傷する場合があるとともに、作業者が躓いたり、足を取られてしまうなどの問題があった。だからといって、滑り止めテープ300を凸条110の表面に貼着するなどしても、貨物は冷凍冷蔵室内では滑らせて移動するために簡単に剥がれてしまっていた。
【0009】
前記従来の冷凍冷蔵車のさらなる課題として、貨物支持部100を形成する各凸条110が断面視略T字状に形成されているために、立ち上がり片111と貨物受け片112との間に形成される左右側上部の隅部114の清掃が困難であることから、同隅部114にゴミ等が堆積し易くなり、このゴミ等が堆積すると雑菌が繁殖し易くなって貨物である食品などに悪影響を及ぼすおそれもあった。
【0010】
【課題を解決するための手段】
そこで、前記課題を解決するために、本発明では、以下の構成からなる冷凍冷蔵車の床面構造を提供することとした。
【0011】
(1)請求項1記載の本発明では、車体フレームに架装した冷凍冷蔵用荷箱の床部に、長手方向に伸延させた複数の凸条を所定間隔あけて並設するとともに、前記複数の凸条のうち、一部の凸条表面に滑り止め面を形成する一方、他の凸条表面を滑り面となし、しかも、前記滑り止め面を、滑り面よりも低く設けた。
【0012】
(2)請求項2記載の本発明では、前記凸条を断面視で略矩形形状に形成した。
【0013】
(3)請求項3記載の本発明では、前記滑り止め面は、錐体状の突起を凸条表面に多数形成した。
【0014】
(4)請求項4記載の本発明では、前記滑り止め面は、凸条の長手方向に所定間隔をあけて幅方向に伸延する溝を多数形成した。
【0015】
(5)請求項5記載の本発明では、前記滑り止め面は、素粒子を含む塗料を凸条表面に塗布して形成した。
【0016】
(6)請求項6記載の本発明では、前記滑り止め面は、滑り止めパタンを形成したテープを凸条表面に貼着して形成した。
【0017】
【発明の実施の形態】
本発明に係る冷凍冷蔵車の床面構造は、車体フレームに架装した冷凍冷蔵用荷箱の床部に、長手方向に伸延させた複数の凸条を所定間隔あけて並設するとともに、前記複数の凸条のうち、一部の凸条表面に滑り止め面を形成する一方、他の凸条表面を滑り面となし、しかも、前記滑り止め面を、滑り面よりも低く設けたものである。
【0018】
冷凍冷蔵車における床面構造の具体的な基本的構造は、キャビンの後方に架装された冷凍冷蔵用荷箱である保冷室内に、冷気吐出口と環流冷気吸入口とを具備する冷気吹き出し部を設けるとともに、保冷室の床部に前後方向に伸延する凸条からなる貨物支持体を左右方向に間隔を開けて配置し、左右方向に隣接する貨物支持体の間に冷気環流流路を形成して前記冷気吹き出し部の冷気吐出口より吐出した冷気を保冷室の天井部と後壁と冷気環流流路と前壁とに沿わせて環流させ、前記環流冷気吸入口より吸入するようにしている。
【0019】
そして、特徴的構造として、貨物支持体をなす前記複数の凸条のうち、一部の凸条表面に滑り止め面を形成する一方、他の凸条表面を滑り面となし、しかも、前記滑り止め面を、滑り面よりも低く設けている。
【0020】
したがって、冷凍食品などの貨物を搬入搬出するために、前記各凸条の上面で滑らせて移動させる場合、冷凍冷蔵用荷箱内で作業する作業者は足を滑らせたりすることなく安全であり、しかも、貨物の底部は滑り止め面と接することがないので貨物を損傷させるおそれもない。
【0021】
また、前記凸条の形状としては、断面視で略T字状の一般的な構造とする他、断面視で略矩形形状に形成することもできる。このとき、凸条の清掃性と冷気環流流路内の冷気の流動性を良好となすために、断面正面形状を略縦長四角筒形状に形成するとともに、上面を平坦面に形成して貨物受け面となすことも、また、貨物受け面の左右幅よりも下部の左右幅を広幅に形成して、左右側面をテーパー面となすことも、また、貨物受け面の左右幅よりも下部の左右幅を細幅に形成して、左右側面を逆テーパー面となすことも、また、貨物受け面の左右幅に対して左右方向に隣接する貨物支持体相互の間隔を同等幅若しくは広幅に形成し、かつ、貨物支持体相互の間隔に対して凸条の高さを大きく形成することも、また、貨物支持体の左右側上部の角部を略直角に形成するとともに、各貨物支持体の下部と床部との間に形成される隅部には略四分の一円弧状の円弧凹部を形成することもできる。
【0022】
そして、かかる凸条に中空部を形成し、同中空部内に低熱伝導性の気体及び/又は断熱材を封入するとよい。なお、凸条に断熱性をもたせる手段として、中空部内を略真空状態となすことも、また、凸条を低熱伝導素材により成形することもできる。
【0023】
前述の凸条に設けた滑り止め面は、錐体状の突起を凸条表面に多数形成することができる。錐体状の突起は凸条に一体成形してもよいし、溶接などで後付けすることもできる。かかる滑り止め面では、多数の突起によって、確実な滑り止め効果を得ることができる。
【0024】
また、前記滑り止め面は、凸条の長手方向に所定間隔をあけて幅方向に伸延する溝を多数形成することもできる。これは、あたかもタイヤなどのトレッドパタンを模したもので、かかる構成によっても十分な滑り止め効果が得られる。
【0025】
また、前記滑り止め面は、素粒子を含む塗料を凸条表面に塗布して形成してもよい。突起や溝のように、凸条と一体成形するのではなく、塗布するだけでよいので滑り止め面の形成が容易である。
【0026】
さらに、前記滑り止め面は、滑り止めパタンを形成したテープを凸条表面に貼着して形成してもよい。塗料を塗布するのと同様に、これも滑り止め面の形成が容易である。
【0027】
ところで、上述してきた滑り止め面を滑り面よりも低く設けるためには、前記滑り止め面を設けた凸条の背丈を、滑り面を有する凸条よりも予め所定寸法だけ低く形成しておくとよく、塗料の塗布やテープ貼着のように滑り止め面を後加工により形成する場合も滑り止め面を滑り面よりも確実に低くすることができる。
【0028】
以下、本発明の実施例を、図面を参照しながらより具体的に説明する。図1は本実施の形態に係る冷凍冷蔵車の全体説明図、図2は同冷凍冷蔵車の背面視による説明図、図3は床面構造を示す説明図、図4は同床面構造を示す横断面図である。
【0029】
図1及び 図2に示すAは、本実施の形態に係る冷凍冷蔵車であり、同冷凍冷蔵車Aは、車体フレーム1の前部上に運転部を配設したキャビン2を設け、同キャビン2の後方位置に冷凍冷蔵荷箱としてのバン型の保冷室3を載設し、前記キャビン2の下方位置に前車輪4,4を設けるとともに、前記保冷室3の中途部下方位置には後車輪5,5を設けている。
【0030】
そして、前記車体フレーム1の左側前部に冷凍装置6を設け、同冷凍装置6に連通連結した冷気吹き出し部7を前記保冷室3内の前壁上部に取り付けて、同冷気吹き出し部7に冷気吐出口7aを後方へ向けて開口するとともに、環流冷気吸入口7bを前方へ向けて開口している。なお、冷気吹き出し部7の配設位置は、保冷室3内であればよく、本実施例のものに限られるものではない。
【0031】
保冷室3は天井部8と床部9と前・後壁10,11と左・右側壁12,13とから前後縦長の箱形に形成しており、前記床部9の上面には前後方向に伸延する多数の断面視矩形形状の凸条14を左右方向に間隔を開けて並設して貨物支持部140を構成している。そして、左右方向に隣接する凸条14,14の間に冷気環流流路15を形成し、前記冷気吹き出し部7の冷気吐出口7aより吐出した冷気を保冷室3の天井部8と後壁11と冷気環流流路15と前壁10とに沿わせて環流させて、環流冷気吸入口7bより吸入するようにしている。
【0032】
かかる構成において、本発明の特徴となるのは、図2〜図4に示すように、前記複数の凸条14のうち、一部の凸条表面に滑り止め面Bを形成する一方、他の凸条表面を滑り面Cとなし、しかも、前記滑り止め面Bを、滑り面Cよりも低く設けたことにある。
【0033】
すなわち、本実施の形態では、図2に示すように、例えばジョロダーなどの荷役具(図示せず)を設置するジョロダーレール16,16間に設けた凸条14を他の凸条14よりも背丈を低く形成するとともに、その上面には図3及び図4に示すような錐体状の突起B1を多数形成して滑り止め面Bを設けている。また、前記各ジョロダーレール16の外側に位置する凸条14のうち、適宜作業者が保冷室3内で歩行することの多い個所についても、同個所に配置される凸条14については背丈を滑り面Cを設けた凸条14よりも低くするととともに、前述同様の滑り止め面Bを上面に設けている。
【0034】
本実施の形態では滑り止め面Bを構成する多数の突起B1を、それぞれ四角錐体としており、凸条14の上面に一体的に多数形成している。そして、突起B1の頂点までの高さHを突起B1が形成されず滑り面Cとした他の凸条14の高さH’よりも低くなるようにしている。滑り面Cを有する凸条14の高さH’としては、例えば25mm〜50mmの範囲で任意に設定することができ、HとH’との差については5〜10mm程度でよい。なお、前記突起B1の大きさや数は適宜設定すればよく、突起B1の頂点はある程度丸みをもたせておくことが好ましい。
【0035】
かかる構成により、冷凍食品などの貨物を搬入搬出するために、作業者が保冷室3内に入り、貨物を貨物支持部140上で滑らせて移動させる作業などを行う場合、作業者は足を滑らせたりすることなく安全に作業を行え、しかも、貨物の底部は滑り止め面Bと接することがないので貨物底面を損傷させるおそれもなくなる。
【0036】
本実施の形態の変容例として、図5に示すように、凸条14を前後方向に伸延する左右一対の左右側壁形成片14a,14aと、両左右側壁形成片14a,14aの上端部間に架設して前後方向に伸延する貨物受け部形成片14bと、両左右側壁形成片14a,14aの下端部間に架設して前後方向に伸延する底部形成片14fとから、断面正面形状が略縦長四角形状で前後方向に伸延する筒状に形成することができる。
【0037】
この場合、滑り止め面Bは、前記貨物受け部形成片14bに一体的に多数形成された四角錐体の突起B1から構成される。そして、前記底部形成片14fから前記突起B1の頂点までの高さHが、突起B1が形成されず滑り面Cとした他の凸条14の底部形成片14fから表面までの高さH’よりも低くなるようにしている。
【0038】
また、上述したように筒状に形成された凸条14内の中空部S内には、低熱伝導性の気体を封入している。低熱伝導性の気体としては、熱伝導率(10−2W/m・K)が0.5〜2.5までの気体、例えば、キセノン、フロン(HCHC−141b,HFC−245fa)、二酸化炭素、アルゴン、窒素、空気等を使用することができる。
【0039】
このように、凸条14に断熱性をもたせることにより、同凸条14から冷気環流流路15内の冷気に熱が伝達され難くして、保冷室3内の保冷性を良好に確保することができ、冷気による適正な冷却効果が得られて、保冷室3内の商品の品質を良好に保持させることができる。
【0040】
また、凸条14の中空部S内を略真空状態とすることにより、熱伝導率(10−2W/m・K)を略0.0とすることもでき、前述したように中空部S内に気体を封入する場合よりも凸条14に断熱性をもたせることができて、保冷室3内の保冷性をより一層良好に確保することもできる。
【0041】
また、上述してきたように、凸条14を断面視略矩形形状としたので、各凸条14間に形成される冷気環流流路15などの清掃が容易となり、ゴミ等が冷気環流流路15内に堆積するのを容易に防止することができ、雑菌の繁殖を確実に防止して食品衛生上の管理を良好に確保することができる
ところで、上述してきた実施の形態のように、凸状14を壇面視矩形形状とせずに、図6及び図7に示すように、凸条14を断面視略T字状に形成して一般的な床面構造に本発明を適用することもできる。
【0042】
すなわち、凸条14を前後方向に伸延するリブ14dと、同リブ14dの上端に連設した所定幅を有する貨物受け部14eとから構成し、同貨物受け部14e上に多数の四角錐体の突起B1を一体形成して滑り止め面Bを構成している。
【0043】
次に、他の実施の形態に係る滑り止め面Bについて図8〜図11を参照しながら説明する。なお、図示した構成要素について、先の実施の形態と同一構成要素については同一符号を付した。
【0044】
図8及び図9は、第2の実施形態を示しており、塗料を凸条14の上面に素粒子を含む塗料を塗布して滑り止め面Bを形成している。
【0045】
すなわち、微粒子B2を含んだ塗料を凸条14の上面に塗布し、塗布後の表面に凹凸が形成されるようにしたもので、滑り止め面Bの形成が極めて容易となっている。そして、この場合も貨物の底部は滑り止め面Bと接することがないので貨物底面を損傷させるおそれがなく、かつ作業者は足を滑らせたりすることなく安全に貨物移動作業を行える。なお、ここでも凸条14を筒状に形成し、前述したように内部に形成される中空部S内を略真空状態としたり、気体を封入したりして保冷室3内の保冷性を高めることができる。
【0046】
また、この第2の実施形態の変容例として第1の実施形態と同様に、凸条14を断面視略T字状に形成することもできる(図10)。
【0047】
次に、図11に示した第3の実施形態について説明する。これは、滑り止め面Bとして、あたかもタイヤのトレッドパタンのように、凸条14の長手方向に所定間隔をあけて幅方向に伸延する溝B3を多数形成した滑り止めパタンを凸条14の表面に設けたものである。この場合、作業者の足裏に当接する鋭い凸部分がないので、作業者が保冷室3内を歩行する場合に違和感がなく、しかもスリップするおそれもない。なお、この場合についても、凸条14を断面視略T字状に形成できることは言うまでもない。
【0048】
ところで、上述してきたように、突起B1や微粒子B2による凹凸や溝B3などを滑り止め面Bに適用したものを説明したが、これらを含む様々な形態の滑り止めパタンを粘着テープ表面に設け、かかる粘着テープ(図示せず)を凸条14の表面に貼着することもできる。
【0049】
この場合も、滑り止め面Bの形成がテープ装着のみで済むので滑り止め加工が容易であり、テープが損傷したりしてもその取替えも容易に行える。
【0050】
【発明の効果】
本発明によれば、次のような効果が得られる。
【0051】
(1)請求項1記載の本発明では、車体フレームに架装した冷凍冷蔵用荷箱の床部に、長手方向に伸延させた複数の凸条を所定間隔あけて並設するとともに、前記複数の凸条のうち、一部の凸条表面に滑り止め面を形成する一方、他の凸条表面を滑り面となし、しかも、前記滑り止め面を、滑り面よりも低く設けた。したがって、冷凍食品などの貨物を搬入搬出するために、前記各凸条の上面で滑らせて移動させる場合、冷凍冷蔵用荷箱内で作業する作業者は足を滑らせたりすることなく安全であり、しかも、貨物の底部は滑り止め面と接することがないので貨物を損傷させるおそれもない。
【0052】
(2)請求項2記載の本発明では、前記凸条を断面視で略矩形形状に形成したことにより、凸条の清掃性と冷気環流流路内の冷気の流動性を良好となすことができる。
【0053】
(3)請求項3記載の本発明では、前記滑り止め面は、錐体状の突起を凸条表面に多数形成したことにより、確実な滑り止め効果を得ることができる。
【0054】
(4)請求項4記載の本発明では、前記滑り止め面は、凸条の長手方向に所定間隔をあけて幅方向に伸延する溝を多数形成したことにより、タイヤのトレッドパタン同様な滑り止め効果を得ることができ、作業者の足の裏に当接する鋭い凸部がないので歩行時にも違和感がない。
【0055】
(5)請求項5記載の本発明では、前記滑り止め面は、素粒子を含む塗料を凸条表面に塗布して形成したことにより、滑り止め加工が容易に行える。
【0056】
(6)請求項6記載の本発明では、前記滑り止め面は、滑り止めパタンを形成したテープを凸条表面に貼着して形成したことにより、滑り止め加工が容易に行える。
【図面の簡単な説明】
【図1】本実施の形態に係る冷凍冷蔵車の全体説明図である。
【図2】同冷凍冷蔵車の背面視による説明図である。
【図3】床面構造を示す説明図である。
【図4】同床面構造を示す横断面図である。
【図5】凸状の変容例を示す説明図である。
【図6】床面構造の変容例を示す説明図である。
【図7】同変容例に係る床面構造の横断面図である。
【図8】第2の実施の形態に係る床面構造の説明図である。
【図9】同床面構造を示す横断面図である。
【図10】第2の実施の形態に係る床面構造の変容例を示す説明図である。
【図11】第3の実施の形態に係る床面構造の説明図である。
【図12】従来の冷凍冷蔵車の床面構造を示す説明図である。
【符号の説明】
A 冷凍冷蔵車
B 滑り止め面
B1 突起
B2 微粒子
B3 溝
1 車体フレーム
3 保冷室(冷凍冷蔵荷箱)
14 凸条
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a floor structure of a refrigerator vehicle.
[0002]
[Prior art]
Conventionally, as shown in FIG. 12, the internal floor structure of a van-type freezer / refrigerator mounted on a vehicle body frame has a plurality of ridges 110 extending in the longitudinal direction at predetermined intervals and at the same height. The cargo support portions 100 are formed side by side. Usually, each of the ridges 110 is formed of aluminum, which is a material having good thermal conductivity.
[0003]
The general shape of the ridge 110 is formed in a substantially T-shaped cross section by a rising piece 111 and a cargo receiving piece 112, and receives a cold-required cargo loaded on the upper surface of the cargo receiving piece 112 from below. A cooling air circulation channel 113 is formed between the rising piece 111 and the rising piece 111 adjacent in the left-right direction.
[0004]
In such a refrigerated vehicle, cold air is circulated in the refrigerated compartment, so that the loaded refrigerated cargo, that is, frozen food (food that needs to be kept at a low temperature of about −25 ° C.) or refrigerated food (0 ° C.). Foods that need to be kept at a low temperature of about 5 ° C.) can be transported at a required cooling temperature.
[0005]
In the floor structure of the refrigerator-freezer having the above-described structure, if the cargo support portion 100 is frozen or wet, the worker handling the cargo becomes slippery. In some cases, a notch 200 was formed as a stopper (FIG. 12 (a)) or a non-slip tape 300 was attached (FIG. 12 (b)). (See, for example, Patent Document 1).
[0006]
[Patent Document 1]
JP-A-2002-59779
[Problems to be solved by the invention]
However, the above-mentioned refrigerated vehicle still has the following problems.
[0008]
That is, when the notch 200 is simply provided in a part of the ridge 110, when the cargo is slid and moved, the cargo may be damaged or abraded by the notch 200, and There were problems such as a worker tripping or being dropped. However, even if the non-slip tape 300 is stuck on the surface of the ridge 110, the cargo is easily peeled off because the cargo slides and moves in the refrigerator compartment.
[0009]
As a further problem of the conventional refrigerating and refrigerated vehicle, since each of the ridges 110 forming the cargo support portion 100 is formed in a substantially T-shape in cross section, it is formed between the rising piece 111 and the cargo receiving piece 112. Since it is difficult to clean the upper right and left corners 114, dust and the like easily accumulate in the corners 114, and when the dust and the like accumulate, various germs easily proliferate, and the food and the like which are cargoes are used. There was also a risk of adverse effects.
[0010]
[Means for Solving the Problems]
Then, in order to solve the above-mentioned subject, in the present invention, it was decided to provide a floor structure of a refrigerator car having the following configuration.
[0011]
(1) According to the first aspect of the present invention, a plurality of ridges extending in the longitudinal direction are juxtaposed at predetermined intervals on the floor of a freezing and refrigeration packing box mounted on a vehicle body frame. Among the ridges, a non-slip surface was formed on a part of the ridge surface, while the other ridge surface was formed as a slip surface, and the anti-slip surface was provided lower than the slip surface.
[0012]
(2) According to the second aspect of the present invention, the ridge is formed in a substantially rectangular shape in a sectional view.
[0013]
(3) According to the third aspect of the present invention, the anti-slip surface has a large number of conical projections formed on the surface of the ridge.
[0014]
(4) According to the fourth aspect of the present invention, the anti-slip surface has a large number of grooves extending in the width direction at predetermined intervals in the longitudinal direction of the ridge.
[0015]
(5) According to the present invention, the anti-slip surface is formed by applying a paint containing elementary particles to the surface of the ridge.
[0016]
(6) In the present invention as set forth in claim 6, the non-slip surface is formed by attaching a tape having a non-slip pattern to the surface of the ridge.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
The floor structure of the refrigerating and refrigerated vehicle according to the present invention, a plurality of ridges extending in the longitudinal direction are juxtaposed at predetermined intervals on the floor of the freezing and refrigeration packing box mounted on the vehicle body frame, and Of the plurality of ridges, a non-slip surface is formed on some of the ridge surfaces, while the other ridge surface is a slip surface, and the anti-slip surface is provided lower than the slip surface. is there.
[0018]
A specific basic structure of a floor structure in a refrigerator car is a cold air blowout unit having a cool air discharge port and a reflux cold air intake port in a cold storage room which is a freezing / refrigerating packing box mounted behind the cabin. And the cargo supports consisting of ridges extending in the front-rear direction are arranged at intervals in the left-right direction on the floor of the cool room, forming a cold air circulation channel between the cargo supports adjacent in the left-right direction. Then, the cool air discharged from the cool air discharge port of the cool air blowing portion is circulated along the ceiling portion, the rear wall, the cool air circulating flow path, and the front wall of the cold storage room, and is sucked from the cool air inlet. I have.
[0019]
And, as a characteristic structure, of the plurality of ridges forming the cargo support, a non-slip surface is formed on a part of the ridge surface, and the other ridge surface is formed as a slip surface. The stop surface is provided lower than the sliding surface.
[0020]
Therefore, when the cargo such as frozen food is to be carried in and out of the container, the worker working in the freezing and refrigerated cargo box can safely and safely slide on the upper surface of each of the ridges without slipping. In addition, since the bottom of the cargo does not contact the non-slip surface, there is no possibility of damaging the cargo.
[0021]
The shape of the ridge may be a generally T-shaped general structure in a cross-sectional view, or may be a substantially rectangular shape in a cross-sectional view. At this time, in order to improve the cleanability of the ridges and the flowability of the cool air in the cool air circulation flow path, the cross-sectional front shape is formed into a substantially vertical rectangular tube shape, and the upper surface is formed to be a flat surface and the cargo receiving portion is formed. The left and right sides of the cargo receiving surface can be tapered, and the left and right sides can be tapered. It is also possible to make the width narrow and make the left and right sides reverse tapered surfaces, or to make the spacing between the cargo supports adjacent in the left and right direction equal to or wider than the left and right width of the cargo receiving surface. In addition, the height of the ridge may be formed to be larger than the distance between the cargo supports, and the upper right and left corners of the cargo support may be formed substantially at right angles, and the lower portion of each cargo support may be formed. An approximately quarter-arc recess is formed in the corner formed between the floor and the floor. It can also be formed.
[0022]
Then, a hollow portion may be formed in such a ridge, and a low heat conductive gas and / or a heat insulating material may be sealed in the hollow portion. In addition, as a means for imparting heat insulation to the ridge, the inside of the hollow portion may be made substantially in a vacuum state, or the ridge may be formed of a low heat conductive material.
[0023]
The anti-slip surface provided on the above-mentioned ridge can form a large number of cone-shaped projections on the surface of the ridge. The conical projection may be formed integrally with the ridge, or may be attached later by welding or the like. On such a non-slip surface, a reliable anti-slip effect can be obtained by a large number of projections.
[0024]
Further, the anti-slip surface may be formed with a large number of grooves extending in the width direction at predetermined intervals in the longitudinal direction of the ridge. This is as if a tread pattern such as a tire is imitated. Even with such a configuration, a sufficient anti-slip effect can be obtained.
[0025]
Further, the non-slip surface may be formed by applying a paint containing elementary particles to the surface of the ridge. Unlike a projection or a groove, it is only necessary to apply the coating, instead of forming it integrally with the ridge, so that it is easy to form a non-slip surface.
[0026]
Further, the non-slip surface may be formed by attaching a tape having a non-slip pattern to the surface of the ridge. As with the application of paint, this also facilitates the formation of a non-slip surface.
[0027]
By the way, in order to provide the above-described non-slip surface lower than the slip surface, the height of the ridge provided with the non-slip surface is formed in advance by a predetermined dimension lower than the ridge having the slip surface. Also, when the anti-slip surface is formed by post-processing such as application of a paint or sticking of a tape, the anti-slip surface can be surely made lower than the slip surface.
[0028]
Hereinafter, embodiments of the present invention will be described more specifically with reference to the drawings. 1 is an overall explanatory view of a refrigerator-freezer according to the present embodiment, FIG. 2 is an explanatory view of the refrigerator-freezer according to a rear view, FIG. 3 is an explanatory view showing a floor structure, and FIG. FIG.
[0029]
A shown in FIGS. 1 and 2 is a refrigerated vehicle according to the present embodiment. The refrigerated vehicle A is provided with a cabin 2 provided with an operating unit on a front portion of a body frame 1, A van-shaped cold storage chamber 3 as a freezing and refrigerated cargo box is mounted at the rear position of the storage compartment 2, front wheels 4 and 4 are provided below the cabin 2, and Wheels 5 and 5 are provided.
[0030]
A refrigeration unit 6 is provided at the left front portion of the body frame 1, and a cool air blowing unit 7 communicatively connected to the refrigeration unit 6 is attached to an upper portion of a front wall in the cold storage room 3. The discharge port 7a is opened rearward, and the reflux cold air intake port 7b is opened forward. In addition, the disposition position of the cool air blowing part 7 is only required to be in the cold insulation room 3 and is not limited to the one in the present embodiment.
[0031]
The cold storage room 3 is formed in a vertically long box shape from a ceiling portion 8, a floor portion 9, front and rear walls 10, 11 and left and right side walls 12, 13, and an upper surface of the floor portion 9 is formed in a front-rear direction. The cargo support portion 140 is formed by arranging a large number of ridges 14 each having a rectangular shape in cross section and extending side by side at intervals in the left-right direction. A cool air circulation channel 15 is formed between the ridges 14 adjacent to each other in the left-right direction, and the cool air discharged from the cool air discharge port 7 a of the cool air blow-out portion 7 is cooled by the ceiling 8 and the rear wall 11 of the cool storage room 3. The air is circulated along the cold air circulating flow path 15 and the front wall 10 so as to be sucked through the circulating cold air inlet 7b.
[0032]
In such a configuration, a feature of the present invention is that, as shown in FIGS. The convex ridge surface is formed as a sliding surface C, and the anti-slip surface B is provided lower than the sliding surface C.
[0033]
That is, in the present embodiment, as shown in FIG. 2, for example, the ridges 14 provided between the jogger rails 16, on which a cargo handling device (not shown) such as a joroller is installed, are larger than the other ridges 14. The height is reduced, and a number of cone-shaped projections B1 as shown in FIGS. 3 and 4 are formed on the upper surface to provide a non-slip surface B. In addition, of the protruding ridges 14 located outside the respective jolter rails 16, where a worker often walks in the cold insulation room 3 as appropriate, the height of the protruding ridges 14 arranged in the same location is also reduced. It is lower than the ridge 14 provided with the sliding surface C, and a non-slip surface B similar to that described above is provided on the upper surface.
[0034]
In the present embodiment, a large number of protrusions B <b> 1 constituting the non-slip surface B are each formed as a quadrangular pyramid, and are formed integrally on the upper surface of the ridge 14. The height H to the top of the projection B1 is set to be lower than the height H 'of the other ridges 14 on which the projection B1 is not formed and the sliding surface C is formed. The height H ′ of the ridge 14 having the sliding surface C can be arbitrarily set within a range of, for example, 25 mm to 50 mm, and the difference between H and H ′ may be about 5 to 10 mm. The size and number of the protrusions B1 may be set as appropriate, and it is preferable that the vertices of the protrusions B1 be rounded to some extent.
[0035]
With such a configuration, when the worker enters the cold storage room 3 and carries out the operation of sliding the cargo on the cargo support portion 140 in order to carry in and carry out the cargo such as the frozen food, the worker may step on the feet. Work can be performed safely without slipping, and since the bottom of the cargo does not contact the non-slip surface B, there is no risk of damaging the bottom of the cargo.
[0036]
As a modification of the present embodiment, as shown in FIG. 5, a pair of left and right side wall forming pieces 14a, 14a extending the ridge 14 in the front-rear direction and between upper end portions of both left and right side wall forming pieces 14a, 14a. A cargo receiving portion forming piece 14b that extends and extends in the front-rear direction and a bottom forming piece 14f that extends between the lower ends of the left and right side wall forming pieces 14a and 14a and extends in the front-rear direction have a substantially vertical cross-sectional front shape. It can be formed in a quadrangular cylindrical shape extending in the front-rear direction.
[0037]
In this case, the non-slip surface B is composed of a large number of quadrangular pyramid projections B1 integrally formed on the cargo receiving portion forming piece 14b. The height H from the bottom forming piece 14f to the apex of the protrusion B1 is higher than the height H 'from the bottom forming piece 14f to the surface of the other convex ridge 14 where the protrusion B1 is not formed and is the sliding surface C. Is also lower.
[0038]
Further, a gas having low thermal conductivity is sealed in the hollow portion S in the ridge 14 formed in a cylindrical shape as described above. As the low heat conductive gas, a gas having a heat conductivity (10 −2 W / m · K) of 0.5 to 2.5, for example, xenon, Freon (HCHC-141b, HFC-245fa), carbon dioxide , Argon, nitrogen, air and the like can be used.
[0039]
In this way, by providing the ridges 14 with heat insulation, heat is less likely to be transferred from the ridges 14 to the cool air in the cold air circulation flow path 15, and the refrigeration inside the cool storage chamber 3 is secured well. As a result, an appropriate cooling effect by the cool air can be obtained, and the quality of the product in the cold storage room 3 can be favorably maintained.
[0040]
Further, by setting the inside of the hollow portion S of the ridge 14 to be in a substantially vacuum state, the thermal conductivity (10 −2 W / m · K) can be set to approximately 0.0. The ridges 14 can be provided with a heat insulating property as compared with a case in which a gas is sealed therein, so that the coolness in the cool storage room 3 can be further improved.
[0041]
Further, as described above, since the ridges 14 have a substantially rectangular shape in cross section, it is easy to clean the cool air circulating flow path 15 formed between the ridges 14, and dust and the like are removed. It can be easily prevented from accumulating in the inside, and it is possible to reliably prevent the propagation of various bacteria and to ensure good food hygiene management. The present invention can also be applied to a general floor structure by forming the ridges 14 in a substantially T-shape in cross section as shown in FIGS. .
[0042]
That is, the rib 14d extends in the front-rear direction of the ridge 14, and a cargo receiving portion 14e having a predetermined width continuously provided at the upper end of the rib 14d, and a large number of quadrangular pyramids are formed on the cargo receiving portion 14e. The protrusion B1 is integrally formed to form the anti-slip surface B.
[0043]
Next, a non-slip surface B according to another embodiment will be described with reference to FIGS. Note that, for the illustrated components, the same reference numerals are given to the same components as those in the above embodiment.
[0044]
8 and 9 show the second embodiment, in which a paint containing elementary particles is applied to the upper surface of the ridge 14 to form a non-slip surface B.
[0045]
That is, the coating containing the fine particles B2 is applied to the upper surface of the ridge 14 so that the unevenness is formed on the surface after the application, so that the formation of the non-slip surface B is extremely easy. Also in this case, since the bottom of the cargo does not contact the non-slip surface B, there is no danger of damaging the bottom of the cargo, and the operator can safely carry the cargo without slipping his / her feet. Here, the ridges 14 are formed in a cylindrical shape, and the inside of the hollow portion S formed inside is made substantially in a vacuum state as described above, or a gas is filled therein to enhance the coolness in the cool keeping room 3. be able to.
[0046]
Further, as a modification of the second embodiment, similarly to the first embodiment, the ridge 14 can be formed in a substantially T-shape in cross section (FIG. 10).
[0047]
Next, a third embodiment shown in FIG. 11 will be described. This is because a non-slip surface having a large number of grooves B3 extending in the width direction at predetermined intervals in the longitudinal direction of the ridge 14 as a tread pattern of a tire is formed on the surface of the ridge 14 as a non-slip surface B. It is provided in. In this case, since there is no sharp convex portion abutting on the sole of the worker, when the worker walks in the cool room 3, there is no uncomfortable feeling and there is no possibility of slipping. In this case, it is needless to say that the ridges 14 can be formed in a substantially T-shape in cross section.
[0048]
By the way, as described above, the one in which the irregularities due to the protrusions B1 and the fine particles B2 and the grooves B3 are applied to the non-slip surface B has been described, but various forms of anti-slip patterns including these are provided on the surface of the adhesive tape, Such an adhesive tape (not shown) may be attached to the surface of the ridge 14.
[0049]
Also in this case, since the formation of the non-slip surface B only requires the mounting of the tape, the non-slip processing is easy, and even if the tape is damaged, it can be easily replaced.
[0050]
【The invention's effect】
According to the present invention, the following effects can be obtained.
[0051]
(1) According to the first aspect of the present invention, a plurality of ridges extending in the longitudinal direction are juxtaposed at predetermined intervals on the floor of a freezing and refrigeration packing box mounted on a vehicle body frame. Among the ridges, a non-slip surface was formed on a part of the ridge surface, while the other ridge surface was formed as a slip surface, and the anti-slip surface was provided lower than the slip surface. Therefore, when the cargo such as frozen food is to be carried in and out of the container, the worker working in the freezing and refrigerated cargo box can safely and safely slide on the upper surface of each of the ridges without slipping. In addition, since the bottom of the cargo does not contact the non-slip surface, there is no possibility of damaging the cargo.
[0052]
(2) According to the second aspect of the present invention, since the ridge is formed in a substantially rectangular shape in a sectional view, it is possible to improve the cleaning property of the ridge and the flowability of the cool air in the cool air circulation flow path. it can.
[0053]
(3) According to the third aspect of the present invention, since the anti-slip surface has a large number of conical projections formed on the surface of the ridge, a reliable anti-slip effect can be obtained.
[0054]
(4) In the present invention as set forth in claim 4, the anti-slip surface is formed with a number of grooves extending in the width direction at predetermined intervals in the longitudinal direction of the ridge, thereby providing a non-slip similar to a tread pattern of a tire. An effect can be obtained, and since there is no sharp projection abutting on the sole of the worker's foot, there is no uncomfortable feeling when walking.
[0055]
(5) According to the fifth aspect of the present invention, since the anti-slip surface is formed by applying a paint containing elementary particles to the surface of the ridge, anti-slip processing can be easily performed.
[0056]
(6) According to the sixth aspect of the present invention, since the non-slip surface is formed by attaching a tape having a non-slip pattern to the surface of the ridge, the non-slip processing can be easily performed.
[Brief description of the drawings]
FIG. 1 is an overall explanatory diagram of a refrigerating car according to the present embodiment.
FIG. 2 is an explanatory diagram of the refrigerator car as viewed from the rear.
FIG. 3 is an explanatory diagram showing a floor structure.
FIG. 4 is a cross-sectional view showing the floor structure.
FIG. 5 is an explanatory diagram showing an example of a convex transformation.
FIG. 6 is an explanatory diagram showing a modification example of the floor structure.
FIG. 7 is a cross-sectional view of the floor structure according to the modification.
FIG. 8 is an explanatory diagram of a floor structure according to a second embodiment.
FIG. 9 is a cross-sectional view showing the floor structure.
FIG. 10 is an explanatory diagram showing a modification of the floor structure according to the second embodiment.
FIG. 11 is an explanatory diagram of a floor structure according to a third embodiment.
FIG. 12 is an explanatory view showing a floor structure of a conventional refrigerator-freezer.
[Explanation of symbols]
A Refrigerated vehicle B Non-slip surface B1 Projection B2 Fine particles B3 Groove 1 Body frame 3 Cooling room (freezer box)
14 ridges

Claims (6)

車体フレームに架装した冷凍冷蔵用荷箱の床部に、長手方向に伸延させた複数の凸条を所定間隔あけて並設するとともに、前記複数の凸条のうち、一部の凸条表面に滑り止め面を形成する一方、他の凸条表面を滑り面となし、しかも、前記滑り止め面を、滑り面よりも低く設けたことを特徴とする冷凍冷蔵車の床面構造。A plurality of ridges extending in the longitudinal direction are juxtaposed at predetermined intervals on the floor of a freezing and refrigeration packing box mounted on a body frame, and a surface of a part of the plurality of ridges is provided. A floor structure of a refrigerator vehicle, characterized in that a non-slip surface is formed on the other, while the other convex surface is a slip surface, and the anti-slip surface is provided lower than the slip surface. 凸条を断面視で略矩形形状に形成したことを特徴とする請求項1記載の冷凍冷蔵車の床面構造。2. The floor structure of a refrigerator vehicle according to claim 1, wherein the ridges are formed in a substantially rectangular shape in a sectional view. 滑り止め面は、錐体状の突起を凸条表面に多数形成したことを特徴とする請求項1又は2に記載の冷凍冷蔵車の床面構造。The floor structure according to claim 1 or 2, wherein the non-slip surface has a number of conical projections formed on the surface of the ridge. 滑り止め面は、凸条の長手方向に所定間隔をあけて幅方向に伸延する溝を多数形成したことを特徴とする請求項1又は2に記載の冷凍冷蔵車の床面構造。The floor structure according to claim 1 or 2, wherein the non-slip surface is formed with a large number of grooves extending in the width direction at predetermined intervals in the longitudinal direction of the ridge. 滑り止め面は、素粒子を含む塗料を凸条表面に塗布して形成したことを特徴とする請求項1又は2に記載の冷凍冷蔵車の床面構造。The floor structure according to claim 1 or 2, wherein the non-slip surface is formed by applying a paint containing elementary particles to the surface of the ridge. 滑り止め面は、滑り止めパタンを形成したテープを凸条表面に貼着して形成したことを特徴とする請求項1又は2に記載の冷凍冷蔵車の床面構造。The floor structure according to claim 1 or 2, wherein the non-slip surface is formed by attaching a tape having a non-slip pattern to the surface of the ridge.
JP2003018684A 2003-01-28 2003-01-28 Floor structure of refrigerator-freezer vehicle Pending JP2004232884A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2013125559A1 (en) * 2012-02-23 2015-07-30 株式会社村田製作所 Resin multilayer board
KR101972398B1 (en) * 2018-10-22 2019-04-25 정규원 Method for manufacturing refrigeration truck
KR101972400B1 (en) * 2018-10-22 2019-04-26 정규원 Method for manufacturing container vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2013125559A1 (en) * 2012-02-23 2015-07-30 株式会社村田製作所 Resin multilayer board
KR101972398B1 (en) * 2018-10-22 2019-04-25 정규원 Method for manufacturing refrigeration truck
KR101972400B1 (en) * 2018-10-22 2019-04-26 정규원 Method for manufacturing container vehicle

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