JP2827423B2 - Synthetic resin pallet and molding method thereof - Google Patents
Synthetic resin pallet and molding method thereofInfo
- Publication number
- JP2827423B2 JP2827423B2 JP2083002A JP8300290A JP2827423B2 JP 2827423 B2 JP2827423 B2 JP 2827423B2 JP 2083002 A JP2083002 A JP 2083002A JP 8300290 A JP8300290 A JP 8300290A JP 2827423 B2 JP2827423 B2 JP 2827423B2
- Authority
- JP
- Japan
- Prior art keywords
- deck
- girder
- synthetic resin
- forming
- tubular girder
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Pallets (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は合成樹脂で一体成形したパレットであって、
フォークリフトにより運搬、荷役作業ができる四方差し
用のフォーク挿入口を有し、両面使用できるパレットに
おいて、作業中フォークまたは荷物に対し滑りを生じな
いように防滑材を設けるための構造を有するパレットに
関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a pallet integrally formed of synthetic resin,
The present invention relates to a pallet having a four-sided fork insertion port capable of being transported and loaded by a forklift and capable of being used on both sides, and having a structure for providing an anti-slip material so that a fork or a load does not slip during operation.
合成樹脂製パレットは、金属製フォークに対し滑り易
いため、従来より種々の工夫がなされている。Since synthetic resin pallets are slippery with respect to metal forks, various ideas have been devised conventionally.
例えば、特公昭63−44625号公報で知らてているよう
に摩擦係数大の硬質ゴムをパレットに設けた穴に強製的
に打ち込むタイプのものが知られている。しかし、この
公知の防滑材取付構造は、パレットを上半分と下半分そ
れぞれ別々に成形し、それを成形後熱溶着、ボルト締等
の手段により一体化するパレットに適用し得るものであ
って、最初から全体を一体的に成形するタイプの、しか
も、四方差しで両面使用できるタイプのパレットにて適
用できないものである。すなわち一体成形タイプでしか
も両面使用及び四方差しタイプのパレットにおいて、フ
ォーク挿入口が交差する部分の上面デッキと下面デッキ
を形成する桟の部分にそれぞれ防滑材を係止する構造、
例えば内部に防滑材を係止固定する突出リブを有する円
筒桟の構造を形成することについては知られておらず、
現状では当該パレットにおいてそのような構造を一体成
形することが出来ない。For example, as known from Japanese Patent Publication No. 63-44625, a type in which hard rubber having a large friction coefficient is forcibly driven into a hole provided in a pallet is known. However, this known anti-slip material mounting structure can be applied to a pallet in which a pallet is formed separately from an upper half and a lower half, and is then heat-sealed after molding and integrated by means such as bolting. It cannot be applied to a pallet of a type that is integrally molded from the beginning and that can be used on both sides in a square. That is, in a pallet of a two-sided and four-sided type, which is an integrally molded type, a structure in which a non-slip member is locked to a portion of a crosspiece forming an upper surface deck and a lower surface deck where a fork insertion port intersects,
For example, it is not known to form a structure of a cylindrical bar having a protruding rib for locking and fixing an anti-skid material therein,
At present, such a structure cannot be integrally formed with the pallet.
本発明は、四方差し、両面使用の一体成形された合成
樹脂製パレットに防滑体をパレット成形後上面側、又は
下面側から打ち込んでしっかりと係止固定することので
きるパレット及びその成形方法を提供することにある。SUMMARY OF THE INVENTION The present invention provides a pallet capable of being securely locked and fixed by driving a slip-proof body from an upper surface side or a lower surface side after molding a pallet into an integrally molded synthetic resin pallet which is four-sided and double-sided. Is to do.
上記課題を解決するための本発明に係るパレットは、
桟状表面デッキと桟状下面デッキが隅部筒状桁、隅部筒
状桁の中間に設けた中間筒状桁及び中央筒状桁によって
連結され、筒状桁の間にフォーク挿入口が井の字状に形
成された両面使用と、四方差しのできる全体が一体成形
された合成樹脂製パレットにおいて、中間筒状桁と中央
筒状桁との間及び各筒状桁内では面デッキの桟と下面デ
ッキの桟が上下に重なり合わない位置に形成されるとと
もに隅部筒状桁と中間筒状桁との間及びフォーク挿入口
の交差部では表面デッキ及び下面デッキが格子状に交差
する桟及び円筒桟によって形成され、該円筒桟内面に防
滑材係止用突出リブを設けたことを特徴とする。A pallet according to the present invention for solving the above problems,
The bar-shaped surface deck and the bar-shaped lower deck are connected by a corner tubular girder, an intermediate tubular girder provided in the middle of the corner tubular girder, and a central tubular girder. In a synthetic resin pallet with a double-sided shape and a four-square insert, the entire surface of which is integrally molded, the space between the intermediate tubular girder and the central tubular girder, and within each tubular girder, the deck of the surface deck And the bottom deck are formed at positions where they do not overlap vertically, and the top deck and bottom deck intersect in a grid between the corner tubular girder and the intermediate tubular girder and at the intersection of the fork insertion slot. And a cylindrical bar, and a projection rib for locking an anti-slip material is provided on the inner surface of the cylindrical bar.
又、上記パレットを成形する方法は、表面デッキ
（１）及び下面デッキ（２）を成形する上金型（30）及
び下金型（40）、表面デッキ（１）及び下面デッキ
（２）が夫々格子状桟（8,9）及び円筒桟（20）によっ
て形成される部分のフォーク挿入口部を成形するための
４つのロングスライド金型（50）と各ロングスライド金
型夫々に直交するショートスライド金型（60）と各ロン
グスライド金型に上下に可動に設けた防滑材係止用突出
リブ（21）に起因するアンダーカット部を成形するため
のスライドコア（70）とによって成形することを特徴と
する。Also, the method of forming the pallet includes an upper mold (30) and a lower mold (40) for forming the front deck (1) and the lower deck (2), the front deck (1) and the lower deck (2). Four long slide dies (50) for forming the fork insertion openings of the portions formed by the lattice bars (8, 9) and the cylindrical bar (20), respectively, and shorts orthogonal to each of the long slide dies. Forming by a slide mold (60) and a slide core (70) for forming an undercut portion caused by a protruding rib (21) for locking an anti-slip material movably provided up and down on each long slide mold. It is characterized by.
第１図は本発明の一実施例を示すパレットの平面図、
第２図は第１図に示すパレットの正面図、第３図は第１
図のＩ−Ｉ線に沿った断面図、第４図は第１図のII−II
線に沿った断面図、第５図は防滑材及び防滑材を取付け
る円筒桟の平面図、第６図は第５図のIII−III線に沿っ
た断面を示している。FIG. 1 is a plan view of a pallet showing one embodiment of the present invention,
FIG. 2 is a front view of the pallet shown in FIG. 1, and FIG.
FIG. 4 is a sectional view taken along the line II of FIG.
5 is a plan view of the anti-slip material and the cylindrical bar on which the anti-slip material is mounted, and FIG. 6 is a cross-sectional view along the line III-III of FIG.
第１図乃至第６図に示されるパレットは、向きの異な
る又は断面形状も異なる多数の桟によって形成された表
面デッキ（１）とこの表面デッキのほぼ同じ形状をした
下面デッキ（２）と、この表面デッキと下面デッキを連
結する４つの隅部筒状桁（３）と、これら隅部筒状桁の
中間に設けた４つの中間筒状桁（４）と、パレット中央
部に設けた１つの中央筒状桁（５）とこれら筒状桁と表
面デッキ及び下面デッキとの間に井の字状のフォーク挿
入口（６）（６），（７）（７）等から成っている。The pallet shown in FIGS. 1 to 6 has a surface deck (1) formed by a number of bars having different directions or different cross-sectional shapes, and a lower deck (2) having substantially the same shape as the surface deck. Four corner tubular girders (3) connecting the front deck and lower deck, four intermediate tubular girders (4) provided in the middle of these corner tubular girders, and one provided at the center of the pallet. There are two central tubular girders (5), and between the tubular girders and the front deck and the lower deck, are fork insertion openings (6), (6), (7), (7) and the like.
そして、フォーク挿入口（６）（７）が交差する部分
の表面デッキ（１′）及び下面デッキ（２′）には、縦
リブ（８）と横リブ（９）が直交した格子状桟が形成さ
れるとともに、表面デッキ（１′）及び下面デッキ
（２）の中央部には、上記縦リブ（８）と横リブ（９）
に連結した円筒桟（20）が設けられている。On the surface deck (1 ') and the lower deck (2') where the fork insertion ports (6) and (7) intersect, a grid-like bar in which the vertical ribs (8) and the horizontal ribs (9) are orthogonal to each other. The vertical ribs (8) and the horizontal ribs (9) are formed at the center of the front deck (1 ') and the lower deck (2).
There is provided a cylindrical bar (20) connected to the.
円筒桟（20）は第５図と第６図に示すように円筒桟
（20）の内側下方部に突出した円環状突出リブ（21）を
有しており、該突出リブ（21）は硬質ゴム製の防滑材
（10）を打ち込んだとき該防滑材（10）の凹溝（11）に
嵌入し、防滑材（10）はパレットに確実に係止固定され
る。凹溝（11）は円周状に設けられており、防滑材（1
0）は位置合せをすることなくどんな回転位置において
も突出リブ（21）と係止固定させることができる。As shown in FIGS. 5 and 6, the cylindrical bar (20) has an annular projecting rib (21) projecting downward from the inside of the cylindrical bar (20), and the projecting rib (21) is hard. When the rubber anti-slip material (10) is driven, it is fitted into the groove (11) of the anti-slip material (10), and the anti-slip material (10) is securely locked and fixed to the pallet. The concave groove (11) is provided circumferentially, and the anti-slip material (1
0) can be locked with the projecting rib (21) at any rotational position without any alignment.
本発明の合成樹脂製パレットは、中間筒状桁（４）と
中央筒状桁（５）との間及び各筒状桁内では表面デッキ
（１）の桟（12）と下面デッキ（２）の桟（12）とが上
下に重なり合わない位置に、上金型（30）と下金型（4
0）によって形成し、隅部筒状桁（３）と中間筒状桁
（４）との間及びフォーク挿入口の交差する部分の表面
デッキ（１′）及び下面デッキ（２′）においては、桟
が格子状に交差して設けてあるため、上金型（30）、下
金型（40）、フォーク挿入口を形成するための４箇のロ
ングスライド金型（50）とこれら各ロングスライド金型
と直交する位置に設けられるショートスライド金型（6
0）と前記各ロングスライド金型の上面側及び下面側に
夫々取り付けられ、防滑材（10）を係止固定するための
突出リブ（21）を成形するためのスライドコア（70）か
ら構成される金型によって射出成形される。The pallet made of synthetic resin according to the present invention is provided between the intermediate tubular girder (4) and the central tubular girder (5) and in each tubular girder, the bar (12) of the front deck (1) and the lower deck (2). The upper die (30) and the lower die (4
0), between the corner tubular girder (3) and the intermediate tubular girder (4) and at the surface deck (1 ') and the lower deck (2') at the intersection of the fork insertion opening. Since the crosspieces are provided so as to intersect in a grid pattern, the upper mold (30), the lower mold (40), four long slide molds (50) for forming the fork insertion port, and each of these long slides A short slide mold (6
0) and a slide core (70) for forming a protruding rib (21) for locking and fixing the anti-slip member (10), which is attached to the upper surface side and the lower surface side of each of the long slide dies. Injection molding with a metal mold.
上記ロングスライド金型（50）とショートスライド金
型（60）の関係は第７図に示す通りである。The relationship between the long slide mold (50) and the short slide mold (60) is as shown in FIG.
第８図乃至第 図は上記ロングスライド金型（50）と
スライドコア（70）の関係及び動きを示す図である。FIGS. 8 to 8 are views showing the relationship and movement between the long slide mold (50) and the slide core (70).
本発明によれば、防滑材を表面デッキ及び下面デッキ
が格子状の桟によって形成されている部分に設けてある
ため、荷重によるたわみが少ないため防滑材とフォーク
または防滑材と荷物との間に十分な摩擦力が生じるた
め、防滑効果が大である。According to the present invention, since the anti-skid is provided at the portion where the surface deck and the lower deck are formed by the lattice-shaped bars, the deflection due to the load is small, so the anti-skid is provided between the anti-skid and the fork or the anti-skid and the load. Since a sufficient frictional force is generated, the anti-slip effect is large.
第１図は本発明の一実施例を示すパレットの平面図、第
２図は同上パレットの正面図、第３図は第１図のＩ−Ｉ
線に沿った断面図、第４図は第１図のII−II線に沿った
断面図、第５図は防滑材取付用円筒桟の平面図、第６図
は第５図のIII−III線に沿った断面図、第７図はロング
スライド金型及びショートスライド金型の関係を示す説
明図、第８図乃至第10図はロングスライド金型とスライ
ドコアの関係及び動きを説明する図である。 １……表面デッキ、２……下面デッキ、３……隅部筒状
桁、４……中間筒状桁、５……中央筒状桁、6,7……フ
ォーク挿入口、8,9……格子状桟、10……防滑材、11…
…凹溝、20……円筒桟、21……突出リブ、30……上金
型、40……下金型、50……ロングスライド金型、60……
ショートスライド金型、70……スライドコア。FIG. 1 is a plan view of a pallet showing an embodiment of the present invention, FIG. 2 is a front view of the pallet, and FIG. 3 is II in FIG.
FIG. 4 is a sectional view taken along the line II-II of FIG. 1, FIG. 5 is a plan view of the cylindrical bar for attaching the anti-skid material, and FIG. 6 is a III-III of FIG. FIG. 7 is an explanatory view showing the relationship between the long slide mold and the short slide mold, and FIGS. 8 to 10 are diagrams illustrating the relationship and movement between the long slide mold and the slide core. It is. 1 ... front deck, 2 ... bottom deck, 3 ... corner tubular girder, 4 ... middle tubular girder, 5 ... central tubular girder, 6, 7 ... fork insertion port, 8, 9 ... … Lattice bar, 10… Anti-slip material, 11…
... concave groove, 20 ... cylindrical crossbar, 21 ... protruding rib, 30 ... upper mold, 40 ... lower mold, 50 ... long slide mold, 60 ...
Short slide mold, 70 ... Slide core.
Claims (2)
（２）が隅部筒状桁（３）、隅部筒状桁の中間に設けた
中間筒状桁（４）及び中央筒状桁（５）によって連結さ
れ、筒状桁の間にフォーク挿入口（6,7）が井の字状に
形成された両面使用と、四方差しのできる全体が一体成
形された合成樹脂製パレットにおいて、中間筒状桁
（４）と中央筒状桁（５）との間及び各筒状桁内では表
面デッキの桟と下面デッキの桟が上下に重なり合わない
位置に形成されるとともに隅部筒状桁（３）と中間筒状
桁（４）との間及びフォーク挿入口の交差部では表面デ
ッキ及び下面デッキが格子状に交差する桟（8,9）及び
円筒桟（20）によって形成され、該円筒桟（20）の内面
には滑り止め材係止用突出リブを設けたことを特徴とす
る合成樹脂製パレット。1. A crosspiece deck (1) and a crosspiece lower deck (2) each having a corner tubular girder (3), an intermediate tubular girder (4) provided in the middle of the corner tubular girder, and a center cylinder. A synthetic resin pallet that is connected by a girder (5) and has a fork insertion opening (6, 7) formed between the cylindrical girder in a double-sided shape, and a four-square integrated whole molded unit In the above, between the intermediate tubular girder (4) and the central tubular girder (5) and in each tubular girder, the crosspiece of the surface deck and the crosspiece of the lower deck are formed at positions where they do not vertically overlap, and Between the cylindrical girder (3) and the intermediate cylindrical girder (4), and at the intersection of the fork insertion openings, the decks (8, 9) and the cylindrical bar (20) where the top deck and bottom deck intersect in a grid pattern are formed. A synthetic resin pallet characterized in that a projection rib for locking a non-slip material is provided on the inner surface of the cylindrical bar (20).
成形する上金型（30）及び下金型（40）、表面デッキ及
び下面デッキが夫々格子状桟によって形成される部分の
フォーク挿入口部を成形するための４つのロングスライ
ド金型（50）と各ロングスライド金型夫々に直交するシ
ョートスライド金型（60）と各ロングスライド金型に上
下に可動に設けた滑り止め材係止用突出リブに起因する
アンダーカット部を成形するためのスライドコア（70）
とによって成形することを特徴とする請求項１記載の合
成樹脂製パレットの成形方法。2. An upper mold (30) and a lower mold (40) for forming the front deck (1) and the lower deck (2), and a fork in a portion where the front deck and the lower deck are respectively formed by lattice bars. Four long slide dies (50) for forming the insertion opening, short slide dies (60) orthogonal to each long slide dies, and non-slip material provided vertically movable on each long slide dies. Slide core (70) for forming the undercut due to the protruding rib for locking
2. The method for forming a synthetic resin pallet according to claim 1, wherein
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2083002A JP2827423B2 (en) | 1990-03-31 | 1990-03-31 | Synthetic resin pallet and molding method thereof |
| KR1019910005161A KR950010289B1 (en) | 1990-03-31 | 1991-03-30 | Pallet made of synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2083002A JP2827423B2 (en) | 1990-03-31 | 1990-03-31 | Synthetic resin pallet and molding method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03289444A JPH03289444A (en) | 1991-12-19 |
| JP2827423B2 true JP2827423B2 (en) | 1998-11-25 |
Family
ID=13790050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2083002A Expired - Lifetime JP2827423B2 (en) | 1990-03-31 | 1990-03-31 | Synthetic resin pallet and molding method thereof |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2827423B2 (en) |
| KR (1) | KR950010289B1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3745789B2 (en) * | 1995-03-30 | 2006-02-15 | 三甲株式会社 | Plastic pallet rib |
| JP4745505B2 (en) * | 2001-01-09 | 2011-08-10 | 三甲株式会社 | Mold structure for plastic pallets |
| KR100727822B1 (en) * | 2003-01-29 | 2007-06-14 | 주식회사 덕유 | Mold for manufacturing single body type hand car type pallet |
| ES2389394T5 (en) * | 2009-03-13 | 2016-12-19 | D.W. Plastics N.V. | Friction elements pallet |
| CN105947019B (en) * | 2016-05-20 | 2017-12-12 | 江苏海事职业技术学院 | It is a kind of to carry out assembled pallet trailer |
| JP7389458B2 (en) * | 2019-09-17 | 2023-11-30 | 岐阜プラスチック工業株式会社 | pallets and molds |
-
1990
- 1990-03-31 JP JP2083002A patent/JP2827423B2/en not_active Expired - Lifetime
-
1991
- 1991-03-30 KR KR1019910005161A patent/KR950010289B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03289444A (en) | 1991-12-19 |
| KR950010289B1 (en) | 1995-09-14 |
| KR910016578A (en) | 1991-11-05 |
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