JP2922819B2 - Plastic pallets - Google Patents

Plastic pallets

Info

Publication number
JP2922819B2
JP2922819B2 JP9774395A JP9774395A JP2922819B2 JP 2922819 B2 JP2922819 B2 JP 2922819B2 JP 9774395 A JP9774395 A JP 9774395A JP 9774395 A JP9774395 A JP 9774395A JP 2922819 B2 JP2922819 B2 JP 2922819B2
Authority
JP
Japan
Prior art keywords
support wall
pallet
rib
insertion port
deck board
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
JP9774395A
Other languages
Japanese (ja)
Other versions
JPH08268430A (en
Inventor
正弘 鮫島
伊佐男 井上
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.)
Meiji Rubber and Chemical Co Ltd
Original Assignee
Meiji Rubber and Chemical 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 Meiji Rubber and Chemical Co Ltd filed Critical Meiji Rubber and Chemical Co Ltd
Priority to JP9774395A priority Critical patent/JP2922819B2/en
Publication of JPH08268430A publication Critical patent/JPH08268430A/en
Application granted granted Critical
Publication of JP2922819B2 publication Critical patent/JP2922819B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】この発明は荷物の保管、運搬に使
用するフォークリフト用のプラスチック製パレットに係
り、詳しくは、支柱部を中空構造としたプラスチック製
パレットに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic pallet for a forklift used for storing and transporting luggage, and more particularly to a plastic pallet having a hollow support portion.

【0002】[0002]

【従来の技術】近年、荷物の保管、運搬に使用されるフ
ォークリフト用パレットでは、プラスチック製パレット
が多く使用されている。プラスチック製パレットの製造
方法には、射出成型機による一体成型法と、予め分割成
型した部品の分割面を突き合わせて溶着する溶着成型法
とがあるが、上下デッキボードの両側端縁部及びそれら
の中間部を互いに平行な支柱部をもって接合し、支柱部
間の空間をフォーク差込口となし、支柱部は支柱壁を閉
じた中空構造に形成される。これらのフォークリフト用
パレットは種々の積み重ね方法において使用され、例え
ば平積み、段積み、あるいはラック積み等の積み重ね方
法がある。ラック積みはパレットの両端部に台座をおい
て支持するものである。
2. Description of the Related Art In recent years, plastic pallets have been widely used as pallets for forklifts used for storing and transporting luggage. There are two types of plastic pallet manufacturing methods: an integral molding method using an injection molding machine, and a welding molding method in which the divided surfaces of parts that have been preliminarily molded are abutted and welded. The intermediate portion is joined by supporting columns that are parallel to each other, the space between the supporting columns is formed as a fork insertion port, and the supporting column is formed in a hollow structure in which the supporting wall is closed. These forklift pallets are used in various stacking methods, for example, stacking methods such as flat stacking, step stacking, and rack stacking. In the rack stacking, pedestals are supported at both ends of the pallet.

【0003】図4及び図5はラック積みの一例を示すも
ので、パレット1は上部デッキボード3と下部デッキボ
ード5とを四隅の支柱部7及びその中間に設けた中間支
柱部9で連結し、前記支柱部と上下デッキボードで囲ま
れた空隙をフォーク差込口10とした四方差しパレット
である。パレット1は両側端部を台座11によって支持
されている。前記ラック積みにおいて、パレット1に荷
物を載置して矢印の方向に荷重がかかると支柱部7のフ
ォーク差込口10に面する支柱壁13の部分では、上下
デッキボード3、5のたわみによってジグザグ状に変形
する。
FIGS. 4 and 5 show an example of rack stacking. A pallet 1 is composed of an upper deck board 3 and a lower deck board 5 which are connected by pillars 7 at four corners and an intermediate pillar 9 provided therebetween. And a four-sided pallet in which a gap surrounded by the support portion and the upper and lower deck boards is a fork insertion port 10. The pallet 1 is supported at both ends by pedestals 11. In the rack stacking, when a load is placed on the pallet 1 and a load is applied in the direction of the arrow, the portion of the support wall 13 facing the fork insertion port 10 of the support portion 7 is bent by the deflection of the upper and lower deck boards 3 and 5. Deforms into a zigzag shape.

【0004】[0004]

【発明が解決しようとする課題】即ち、パレット1に荷
重がかかるとパレット1全体としては、図4に一点鎖線
で示すように弓状に変形するが、この変形量はフォーク
差込口10に面する支柱壁13が変形することによって
一層大きくなる。上下デッキボード3、5が下方にたわ
むとデッキボードが連結している支柱部7の支柱壁13
の部分では、図5に一点鎖線で示すように、上部デッキ
ボード3の下端連結部15が支柱部7の内方に変形し、
下部デッキボード5の上端連結部17は支柱部7の外方
(フォーク差込口側)に変形することになる。このよう
に、支柱部7の支柱壁13が変形することによってデッ
キボードのたわみ量は一層大きくなる。
That is, when a load is applied to the pallet 1, the entire pallet 1 is deformed in an arcuate shape as shown by a dashed line in FIG. It becomes larger due to the deformation of the strut wall 13 facing. When the upper and lower deck boards 3 and 5 bend downward, the support wall 13 of the support portion 7 to which the deck boards are connected.
5, the lower end connecting portion 15 of the upper deck board 3 is deformed inward of the support portion 7 as shown by a dashed line in FIG.
The upper end connecting portion 17 of the lower deck board 5 is deformed to the outside of the support portion 7 (fork insertion port side). Thus, the deformation of the support wall 13 of the support portion 7 further increases the amount of deflection of the deck board.

【0005】デッキボードがたわむと荷物を安定した状
態で載置することができないばかりでなく、荷崩れのお
それがある。また、たわみ状態を長時間保持しておく
と、パレットに永久変形が生じることになる。これらの
変形を防止するには、支柱壁13の肉厚を厚くすればよ
いが、肉厚を厚くすると材料の使用量が増し成形時間も
長くなりコストアップとなる。
[0005] If the deck board is bent, not only cannot the luggage be stably placed, but also the load may collapse. Further, if the bending state is maintained for a long time, the pallet will be permanently deformed. To prevent such deformation, the thickness of the support wall 13 may be increased. However, when the thickness is increased, the amount of material used increases, the molding time increases, and the cost increases.

【0006】[0006]

【発明の目的】この発明は上記課題を解決すべくなされ
たもので、支柱壁の肉厚を厚くすることなくデッキボー
ドの変形量を小さくしたプラスチック製パレットを提供
することを目的とする。
SUMMARY OF THE INVENTION An object of the present invention is to provide a plastic pallet in which the amount of deformation of a deck board is reduced without increasing the thickness of a support wall.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するため
に、この発明の請求項1に係るプラスチック製パレット
は、上部デッキボードと下部デッキボードとを中空構造
の支柱部で連結し、前記支柱部と上下デッキボードで囲
まれた空隙をフォーク差込口としたパレットにおいて、
前記支柱部を形成する支柱壁のうちフォーク差込口に面
する部分の支柱壁の内側において両端部が連結している
とともに、前記支柱壁の全高さにわたって閉じた補強リ
ブを設け、前記支柱壁と補強リブとの間において中空構
造を形成することを特徴とする。また、請求項2に係る
プラスチック製パレットは、前記補強リブを断面コ字状
の補強リブとしたことを特徴とする。また、請求項3に
係るプラスチック製パレットは、前記補強リブと支柱壁
との間において形成される中空構造を分割する分割リブ
を支柱壁に連結させて直角に設け、中空構造の内部を連
続する複数の中空構造としたことを特徴とする。
In order to achieve the above object, a plastic pallet according to a first aspect of the present invention is characterized in that an upper deck board and a lower deck board are connected by a hollow column. On a pallet with a fork slot in the space surrounded by the
In the support wall forming the support portion, both ends are connected inside the support wall at a portion facing the fork insertion port, and a reinforcing rib closed over the entire height of the support wall is provided. A hollow structure is formed between the reinforcing ribs. The plastic pallet according to claim 2 is characterized in that the reinforcing rib is a reinforcing rib having a U-shaped cross section. According to a third aspect of the present invention, the plastic pallet is provided with a dividing rib for dividing a hollow structure formed between the reinforcing rib and the support wall and connected to the support wall at a right angle, so that the inside of the hollow structure is continuous. It is characterized by having a plurality of hollow structures.

【0008】[0008]

【作用】従って、この発明の請求項1にあっては、補強
リブは支柱部の高さにわたって延びており、支柱壁とと
もに中空構造体を形成するから、支柱壁の変形を防止す
るように働く。請求項2にあっては、断面コ字状補強リ
ブの支柱壁と連結する部分が、支柱壁の変形方向に設け
られるので、変形防止に有効に働く。また、請求項3に
あっては、分割リブが補強リブを補強し、支柱壁の変形
防止に役立つ。
Therefore, according to the first aspect of the present invention, the reinforcing ribs extend over the height of the column and form a hollow structure together with the column, so that the reinforcing rib acts to prevent deformation of the column. . According to the second aspect, the portion of the reinforcing rib having a U-shaped cross section connected to the support wall is provided in the deformation direction of the support wall, which effectively works to prevent deformation. According to the third aspect, the dividing ribs reinforce the reinforcing ribs and help prevent deformation of the support wall.

【0009】[0009]

【実施例】以下に、この発明の実施例を図面に基づいて
詳細に説明する。図1〜図3はこの発明の実施例を示す
ものであって、図1は図3のA−A断面図、図2は同じ
く一部斜視図、図3は図1のB−Bにおけるパレットの
縦断面図である。パレット20は上部デッキボード21
と下部デッキボード23とを四隅の支柱部25及びその
中間に設けた中間支柱部27で連結し、前記上下デッキ
ボード21、23と支柱部25、27で囲まれた空隙を
フォーク差込口29とした四方差しパレットである。前
記上部デッキボード21と下部デッキボード23の表面
はそれぞれ平滑に形成され、内側面に補強リブ30が設
けられている。前記補強リブ30はパレットの側端面に
対して平行な補強リブ30aと30bによって格子状に
形成されており、各支柱部間においては各側端面に平行
な補強リブの間隔が狭く形成されている。
Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3 show an embodiment of the present invention. FIG. 1 is a sectional view taken along line AA of FIG. 3, FIG. 2 is a partial perspective view of the same, and FIG. FIG. Pallet 20 is upper deck board 21
And the lower deck board 23 are connected by pillars 25 at four corners and an intermediate pillar 27 provided therebetween, and a gap surrounded by the upper and lower deck boards 21 and 23 and the pillars 25 and 27 is inserted into a fork insertion port 29. It is a four-sided pallet. The surfaces of the upper deck board 21 and the lower deck board 23 are respectively formed to be smooth, and a reinforcing rib 30 is provided on the inner side surface. The reinforcing ribs 30 are formed in a lattice shape by reinforcing ribs 30a and 30b parallel to the side end surface of the pallet, and the interval between the reinforcing ribs parallel to each side end surface is narrowed between the columns. .

【0010】各支柱部25、27内にも縦横に格子状補
強リブ31が設けられており、周壁に接続する部分では
支柱部の高さにわたって縦リブ33として連続してい
る。さらに、この発明では、支柱部25と支柱部27の
フォーク差込口29に面する部分の支柱壁35、37に
閉じた補強リブ39、40を設けてなる。前記補強リブ
39、40は断面コ字状であって支柱部の全高さにわた
って形成されている。従って、支柱壁35、37ととも
に中空構造の四角形筒状体を形成している。前記補強リ
ブ40は、内部に設けた分割リブ41によって2つの筒
状体に形成されている。
[0010] A lattice-shaped reinforcing rib 31 is also provided in each of the columns 25 and 27 vertically and horizontally, and is continuous as a vertical rib 33 over the height of the column at a portion connected to the peripheral wall. Further, in the present invention, closed reinforcing ribs 39 and 40 are provided on the column walls 35 and 37 at portions of the column portion 25 and the column portion 27 facing the fork insertion port 29. The reinforcing ribs 39 and 40 have a U-shaped cross section and are formed over the entire height of the support portion. Therefore, a rectangular tubular body having a hollow structure is formed together with the support walls 35 and 37. The reinforcing rib 40 is formed into two cylindrical bodies by a dividing rib 41 provided inside.

【0011】前記補強リブ39、40の断面形状は前記
コ字状であることが好ましいが、必ずしもコ字状に限定
されるものではなく、断面U字状、断面V字状等に形成
することができる。また、前記実施例では、補強リブ3
9、40を1方向のフォーク差込口29に面する支柱壁
にのみ設けたが、他方向のフォーク差込口29に面する
支柱壁にも設けることができるのは勿論である。また、
補強リブ39、40の数及び大きさは、支柱部の大きさ
や肉厚によって適宜決定すればよい。
The cross-sectional shape of the reinforcing ribs 39 and 40 is preferably the U-shape, but is not necessarily limited to the U-shape, and may be formed in a U-shaped cross-section, a V-shaped cross-section, or the like. Can be. In the above embodiment, the reinforcing rib 3
Although 9 and 40 are provided only on the support wall facing the fork insertion port 29 in one direction, it goes without saying that they can also be provided on the support wall facing the fork insertion port 29 in the other direction. Also,
The number and size of the reinforcing ribs 39 and 40 may be appropriately determined depending on the size and wall thickness of the support portion.

【0012】尚、上記実施例では四方差しパレットにつ
いて述べたが、二方差しパレットであってもよい。二方
差しパレットでは、前記補強リブ39、40は1方向の
フォーク差込口29に面する部分の支柱壁に設けられれ
ることになる。また、前記デッキボード21、23の補
強リブ30で囲まれた部分には、水抜き用の透孔を穿設
してもよく、また、適宜の箇所に滑り止め用のグロメッ
トを取り付けてもよい。前記構成のパレット用プラスチ
ックとしては従来公知のすべての熱可塑性プラスチック
が使用され、例えば、ポリプロピレン、ポリエチレン、
ポリスチレン(PS)等が挙げられる。
Although the four-way pallet has been described in the above embodiment, a two-way pallet may be used. In the two-sided pallet, the reinforcing ribs 39 and 40 are provided on the column wall facing the fork insertion port 29 in one direction. In addition, through holes for draining water may be formed in portions of the deck boards 21 and 23 surrounded by the reinforcing ribs 30, and non-slip grommets may be attached to appropriate places. . As the plastic for the pallet having the above configuration, all conventionally known thermoplastics are used, for example, polypropylene, polyethylene,
Polystyrene (PS) and the like.

【0013】[0013]

【発明の効果】以上説明したように、この発明の請求項
1に係るプラスチック製パレットでは、支柱壁の変形を
補強リブで防止するから、デッキボードのたわみを少な
くすることができるとともに、支柱壁の肉厚を薄くする
ことができる。また、補強リブをフォーク差込口に面す
る支柱壁にのみ設けることによって、材料を節約し重量
を軽くすることができる。請求項2に係るプラスチック
製パレットでは、断面コ字状補強リブとすることにより
支柱壁の変形量をより一層小さくすることができる。ま
た、請求項3に係るプラスチック製パレットでは、分割
リブによって補強効果が一層向上する。
As described above, in the plastic pallet according to the first aspect of the present invention, since the deformation of the support wall is prevented by the reinforcing ribs, the deflection of the deck board can be reduced and the support wall can be reduced. Can be made thinner. Further, by providing the reinforcing rib only on the support wall facing the fork insertion port, the material can be saved and the weight can be reduced. In the plastic pallet according to the second aspect, the reinforcing ribs having a U-shaped cross section can further reduce the deformation amount of the support wall. Further, in the plastic pallet according to the third aspect, the reinforcing effect is further improved by the dividing rib.

【図面の簡単な説明】[Brief description of the drawings]

【図1】図3におけるA−A断面図である。FIG. 1 is a sectional view taken along the line AA in FIG.

【図2】同じく一部斜視図である。FIG. 2 is a partial perspective view of the same.

【図3】図1のB−Bにおけるパレットの縦断面図であ
る。
FIG. 3 is a longitudinal sectional view of the pallet taken along line BB in FIG. 1;

【図4】パレットのラック積みの一例を示す説明用正面
図である。
FIG. 4 is an explanatory front view showing an example of stacking pallets on a rack.

【図5】ラック積みにおけるパレットの変形を示す説明
用断面図である。
FIG. 5 is an explanatory cross-sectional view showing deformation of a pallet in rack stacking.

【符号の説明】[Explanation of symbols]

20 パレット 21 上部デッキボード 23 下部デッキボード 25 四隅の支柱部 27 中間の支柱部 29 フォーク差込口 30 補強リブ 31 補強リブ 33 縦リブ 35 フォーク差込口に面する部分の支柱壁 37 フォーク差込口に面する部分の支柱壁 39 補強リブ 40 補強リブ 41 分割リブ DESCRIPTION OF SYMBOLS 20 Pallet 21 Upper deck board 23 Lower deck board 25 Four corner support parts 27 Middle support part 29 Fork insertion port 30 Reinforcement rib 31 Reinforcement rib 33 Vertical rib 35 Post wall facing part of fork insertion port 37 Fork insertion Portion-facing column wall 39 Reinforcement rib 40 Reinforcement rib 41 Split rib

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6,DB名) B65D 19/32 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) B65D 19/32

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 上部デッキボードと下部デッキボードと
を中空構造の支柱部で連結し、前記支柱部と上下デッキ
ボードで囲まれた空隙をフォーク差込口としたパレット
において、前記支柱部を形成する支柱壁のうちフォーク
差込口に面する部分の支柱壁の内側において両端部が連
結しているとともに、支柱壁の全高さにわたって閉じた
補強リブを設け、前記支柱壁と前記補強リブとの間にお
いて中空構造を形成するようにしたことを特徴とするプ
ラスチック製パレット。
An upper deck board and a lower deck board are connected by a pillar having a hollow structure, and the pillar is formed on a pallet having a gap surrounded by the pillar and the upper and lower deck boards as a fork insertion port. Both ends are connected on the inner side of the support wall of the portion of the support wall facing the fork insertion port, and a reinforcing rib closed over the entire height of the support wall is provided. A plastic pallet characterized by forming a hollow structure between the pallets.
【請求項2】 前記補強リブは断面コ字状であって、支
柱壁との間において中空構造を形成するようにしたこと
を特徴とする請求項1記載のプラスチック製パレット。
2. The plastic pallet according to claim 1, wherein said reinforcing rib has a U-shaped cross section, and forms a hollow structure between said reinforcing rib and a support wall.
【請求項3】 前記補強リブの内部に支柱壁に直角に連
結する分割リブを設け、支柱壁との間において連続する
複数の中空構造を形成するようにしたことを特徴とする
請求項1記載のプラスチック製パレット。
3. A plurality of continuous ribs are formed inside the reinforcing ribs, the dividing ribs being connected to the support wall at right angles, and a plurality of continuous hollow structures are formed between the support rib and the support wall. Plastic pallets.
JP9774395A 1995-03-30 1995-03-30 Plastic pallets Expired - Lifetime JP2922819B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9774395A JP2922819B2 (en) 1995-03-30 1995-03-30 Plastic pallets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9774395A JP2922819B2 (en) 1995-03-30 1995-03-30 Plastic pallets

Publications (2)

Publication Number Publication Date
JPH08268430A JPH08268430A (en) 1996-10-15
JP2922819B2 true JP2922819B2 (en) 1999-07-26

Family

ID=14200378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9774395A Expired - Lifetime JP2922819B2 (en) 1995-03-30 1995-03-30 Plastic pallets

Country Status (1)

Country Link
JP (1) JP2922819B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012006632A (en) * 2010-06-25 2012-01-12 Sanko Co Ltd Synthetic resin-made pallet

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0798220B1 (en) * 1996-03-29 2002-07-17 Sumitomo Chemical Company, Limited Plastic pallet
JP2001240058A (en) * 1999-12-22 2001-09-04 Dainippon Ink & Chem Inc Synthetic resin pallet
JP4550225B2 (en) * 2000-05-31 2010-09-22 岐阜プラスチック工業株式会社 palette
JP4557255B2 (en) * 2005-03-08 2010-10-06 株式会社明治ゴム化成 Plastic pallet
JP4866657B2 (en) * 2006-05-22 2012-02-01 日本プラパレット株式会社 Plastic pallet
JP6594654B2 (en) * 2015-05-11 2019-10-23 日本プラパレット株式会社 palette

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012006632A (en) * 2010-06-25 2012-01-12 Sanko Co Ltd Synthetic resin-made pallet

Also Published As

Publication number Publication date
JPH08268430A (en) 1996-10-15

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