JPH0437053Y2 - - Google Patents
Info
- Publication number
- JPH0437053Y2 JPH0437053Y2 JP16453386U JP16453386U JPH0437053Y2 JP H0437053 Y2 JPH0437053 Y2 JP H0437053Y2 JP 16453386 U JP16453386 U JP 16453386U JP 16453386 U JP16453386 U JP 16453386U JP H0437053 Y2 JPH0437053 Y2 JP H0437053Y2
- Authority
- JP
- Japan
- Prior art keywords
- pinch
- lid
- main body
- blow
- gap
- 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
Links
- 230000013011 mating Effects 0.000 claims description 12
- 239000002991 molded plastic Substances 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 10
- 238000000071 blow moulding Methods 0.000 description 8
- 230000001771 impaired effect Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、各種物品を収納して保管し、運搬す
る等の用途に供する中空二重壁構造の本体と蓋体
からなるブロー成形製プラスチツクケースに関す
るものである。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a blow-molded plastic case consisting of a hollow double-walled body and a lid, which is used for storing, storing, and transporting various articles. It is something.
従来の技術
従来、中空二重壁構造の本体と蓋体からなるブ
ロー成形製プラスチツクケースは、収納する物品
や用途等に応じて各種形状および構造のものが知
られ、かつ用いられている。BACKGROUND ART Conventionally, blow-molded plastic cases consisting of a hollow double-walled main body and a lid have been known and used in various shapes and structures depending on the articles to be stored and their uses.
考案が解決しようとする問題点
一般に、各種物品を収納する中空二重壁構造の
プラスチツクケースは、軽量であるにもかかわら
ず、機械的強度が大であるが、その最も優れてい
る点は緩衝効果が大きく、収納物品を衝撃から保
護する機能が高いところにある。Problems that the invention aims to solve In general, hollow double-walled plastic cases for storing various items have high mechanical strength despite being lightweight. It is highly effective and has a high ability to protect stored items from impact.
ところで、この種の中空二重壁構造のプラスチ
ツクケースをブロー成形によつて構成すると、本
体と蓋体との合わせ面において、ブロー成形上最
も肉厚の厚くなるピンチオフ部が生じ、このピン
チオフ部が互いに当接するので、中空二重壁構造
の特長である緩衝効果が損なわれるのが実状であ
る。 By the way, when this kind of hollow double-walled plastic case is constructed by blow molding, a pinch-off part that is thickest in blow molding occurs at the mating surface of the main body and the lid, and this pinch-off part In reality, since they abut against each other, the cushioning effect, which is a feature of the hollow double wall structure, is impaired.
すなわち、第４図に示すように、ピンチオフ部
ａは、一対の金型ｂ，ｂの合わせ面でパリスンｃ
が挟まれ、成形後にバリを除去した部分である。
そして、従来このように成形されたピンチオフ部
ａを有する本体ｄと蓋体ｅとで第５図に示すよう
なケースが構成されると、その合わせ面ｆ，ｇの
ピンチオフ部ａ，ａが閉鎖時に当接するが、ピン
チオフ部ａ，ａは前記のように肉厚が厚いので、
この部分が互いに当接することは、中空二重壁構
造のケース全体の緩衝効果が著しく損なわれるの
である。 That is, as shown in FIG.
This is the part where the burrs were removed after molding.
When a case as shown in FIG. 5 is constructed with the main body d having the pinch-off part a formed in this way and the lid e, the pinch-off parts a, a of the mating surfaces f, g are closed. However, since the pinch-off parts a and a are thick as mentioned above,
If these parts come into contact with each other, the cushioning effect of the entire hollow double-walled case will be significantly impaired.
本考案は、上記のような従来の問題点に鑑み、
本体および蓋体のブロー成形時に生じるピンチオ
フ部が閉鎖時に互いに当接せず、しかも、それら
の嵌合部に変形時の逃げ間隙を設けたことによ
り、中空二重壁構造の優れた点である緩衝効果が
全く損なわれないことは勿論のこと、変形を伴う
ような衝撃に対する緩衝効果をも著しく向上させ
ることができ、さらに、閉鎖時において合わせ面
にずれを生ぜず、外観上も優れたブロー成形製プ
ラスチツクケースを提供することを目的とするも
のである。 In view of the above-mentioned conventional problems, this invention
The advantage of the hollow double-walled structure is that the pinch-off parts that occur during blow molding of the main body and lid do not come into contact with each other when they are closed, and that the fitting part has an escape gap during deformation. It goes without saying that the cushioning effect is not impaired at all, but it also significantly improves the cushioning effect against deforming impacts.Furthermore, it does not cause any displacement of the mating surfaces when closed, and has an excellent appearance. The object is to provide a molded plastic case.
問題点を解決するための手段
本考案は、その目的を達成するための技術的手
段を次のように構成した。Means for Solving the Problems The present invention has the following technical means for achieving its purpose.
すなわち、本考案に係るブロー成形製プラスチ
ツクケースは、ブロー成形された中空二重壁構造
の本体と蓋体からなり、それらの合わせ面に嵌合
部を形成してなるプラスチツクケースにおいて、
本体と蓋体とのピンチオフ部の一方を外側にかつ
他方を内側に位置させて、外側のピンチオフ部を
有する部分でフランジを形成し、内側のピンチオ
フ部と閉鎖時に対向する一方の壁面との間に間隙
を設けたことを特徴とするものである。 That is, the blow-molded plastic case according to the present invention consists of a blow-molded hollow double-walled main body and a lid, and a fitting part is formed on the mating surfaces of the plastic case.
One of the pinch-off parts of the main body and the lid is located on the outside and the other on the inside, and the part having the outside pinch-off part forms a flange, and between the inside pinch-off part and one wall surface facing each other when closed. It is characterized by having a gap between.
作 用
本体および蓋体をブロー成形する際に生じるそ
れぞれの肉厚の厚いピンチオフ部は、閉鎖時にお
いて互いに当接しないので、通常の軽度な振動、
衝撃によつてぶつかることがなく、本体と蓋体と
の合わせ面で緩衝効果が損なわれないうえ、本体
と蓋体の合わせ面には変形に対する逃げ間隙が設
けられているので、大きな振動、衝撃によつて、
内側のピンチオフ部と対向する一方の壁が当接す
るまで間隙が挟められるように嵌合部分の壁面が
弾性変形することによつて衝撃を吸収し、さらに
大きな振動、衝撃に際しては内側のピンチオフ部
と対向する一方の壁が当接した状態で維持される
ので、変形を伴うような衝撃に対しても充分な緩
衝効果が得られる。このため、収納された物品が
確実に保持される。また、フランジ部を有するこ
とにより、閉鎖時において合わせ面にずれが生じ
ず、しかも上記間隙が覆われて外観上良好な状態
を保持する。Function: The thick pinch-off parts that occur when blow molding the main body and lid do not come into contact with each other when they are closed, so normal mild vibrations and
They will not collide with each other due to impact, and the cushioning effect will not be lost at the mating surface between the main body and lid, and the mating surface between the main body and lid has an escape gap to prevent deformation, so it can withstand large vibrations and shocks. According to
The wall surface of the mating part elastically deforms so that a gap is sandwiched until one wall facing the inner pinch-off part comes into contact with the other, absorbing the shock. Since one of the opposing walls is maintained in contact with the other, a sufficient buffering effect can be obtained even against impacts that cause deformation. Therefore, the stored articles are reliably held. Furthermore, by having the flange portion, the mating surfaces do not shift when closed, and the gap is covered to maintain a good appearance.
実施例 本考案の一実施例を図面について説明する。Example An embodiment of the present invention will be described with reference to the drawings.
第１図ないし第３図において、１は本体、２は
蓋体であつて、本体１および蓋体２は、ポリエチ
レン、ポリプロピレン等の熱可塑性プラスチツク
をブロー成形して共に中空二重壁構造に形成され
ており、これら本体１と蓋体２は成形時に一体に
圧縮成形されたヒンジ（または別体のヒンジ）３
によつて開閉自在に連結されている。本体１およ
び蓋体２の合わせ面には、閉鎖時に互いに係合す
る嵌合部４が形成されている。すなわち、上記嵌
合部は、本体１側の突条５と蓋体２側の係合部６
によつて構成されており、本体１のピンチオフ部
７は突条５の外側に位置しており、蓋体２のピン
チオフ部８はさらにその外側に位置している。そ
して、蓋体２のピンチオフ部８を有する部分はフ
ランジ９を形成しており、本体１のピンチオフ部
７を有する部分の外側にかぶさるようになつてい
る。本体１の上記ピンチオフ部７を有する部分１
０と蓋体２のそれに対応する平坦部１１間には、
間隙１２が形成されている。この間隙１２は、本
体１または蓋体２が形成した際の変形分を逃がす
ためのものであり、間隙１２の外側は、閉鎖時に
前記フランジ９によつて覆われて、外側からは見
えない。なお、１３，１４は収納リセス、１５は
ラツチ、１６はラツチ受けである。 In Figures 1 to 3, 1 is a main body, and 2 is a lid, and the main body 1 and the lid 2 are both formed into a hollow double-walled structure by blow molding thermoplastic plastic such as polyethylene or polypropylene. The main body 1 and the lid 2 have a hinge (or a separate hinge) 3 that is compression-molded together during molding.
They are connected to each other so that they can be opened and closed. A fitting portion 4 is formed on the mating surfaces of the main body 1 and the lid 2, which engage with each other when closed. That is, the above-mentioned fitting part includes the protrusion 5 on the main body 1 side and the engaging part 6 on the lid body 2 side.
The pinch-off portion 7 of the main body 1 is located outside the protrusion 5, and the pinch-off portion 8 of the lid body 2 is located further outside of the protrusion 5. The portion of the lid body 2 having the pinch-off portion 8 forms a flange 9, which is adapted to cover the outside of the portion of the main body 1 having the pinch-off portion 7. Portion 1 of main body 1 having the pinch-off portion 7
0 and the corresponding flat part 11 of the lid body 2,
A gap 12 is formed. This gap 12 is provided to release deformation caused by the formation of the main body 1 or the lid 2, and the outside of the gap 12 is covered by the flange 9 when closed and is not visible from the outside. Note that 13 and 14 are storage recesses, 15 is a latch, and 16 is a latch receiver.
以上のように構成されたブロー成形製プラスチ
ツクケースにおいて、本体１および蓋体２のブロ
ー成形時に生じる肉厚の厚いピンチオフ部７，８
は互いに当接せず、したがつて、この部分が当接
することに起因する緩衝効果の減退が防止され
る。また、本体１のピンチオフ部７を有する部分
１０と蓋体２のそれに対応する平坦部１１間には
間隙１２が設けられているので、本体１および蓋
体２が変形を伴うような衝撃を受けても、その変
形分が間隙１２によつて逃げて、衝撃が収納物品
に及ぶのが未然に防止される。さらにフランジ９
は本体１と蓋体２の嵌合部４のずれを生じさせな
いので、一層緩衝効果が向上する。フランジ９は
閉鎖時に間隙１２を覆うので、間隙１２を設けた
ことによつて外観が損なわれることはない。 In the blow-molded plastic case constructed as described above, the thick pinch-off portions 7 and 8 that occur during blow-molding of the main body 1 and the lid 2 are
do not come into contact with each other, and therefore the damping effect is prevented from decreasing due to the contact between these parts. Furthermore, since a gap 12 is provided between the portion 10 of the main body 1 having the pinch-off portion 7 and the corresponding flat portion 11 of the lid 2, the main body 1 and the lid 2 are not subjected to shocks that cause deformation. However, even if the stored items are stored, the deformed portion escapes through the gap 12, thereby preventing impact from being applied to the stored items. Furthermore, flange 9
Since the fitting portion 4 of the main body 1 and the lid body 2 does not become misaligned, the buffering effect is further improved. Since the flange 9 covers the gap 12 when closed, the provision of the gap 12 does not impair the appearance.
ところで、第３図において、従来の高さをＨ、
幅をＤ、その頂部肉厚をt1、ピンチオフ部８の肉
厚をt2、ケース壁の平均肉厚をt0とすれば、Ｈ／
D0.5〜1.2、t2＝（0.1〜0.5）t0，t1＝（1.3〜3.0）t0
とするのが好適であり、前記実施例では、Ｈ／
D0.8，t1を0.6mm、t2を3.5mm、t0を2.2mmとした。 By the way, in Fig. 3, the conventional height is H,
If the width is D, the thickness of the top part is t 1 , the thickness of the pinch-off part 8 is t 2 , and the average thickness of the case wall is t 0 , then H/
D0.5~1.2, t2 = (0.1~0.5) t0 , t1 = (1.3~3.0) t0
In the above embodiment, H/
D0.8, t 1 was 0.6 mm, t 2 was 3.5 mm, and t 0 was 2.2 mm.
考案の効果
本考案は、前記のように、ブロー成形された中
空二重壁構造の本体と蓋体からなり、それらの合
せ面には嵌合部を形成してなるプラスチツクケー
スにおいて、本体と蓋体のピンチオフ部の一方を
外側にかつ他方を内側に位置させて、外側のピン
チオフ部を有する部分でフランジを形成し、内側
のピンチオフ部と閉鎖時に対向する一方の壁面と
の間に隙間を設けたものであるから、本体および
蓋体のブロー成形時に生ずるピンチオフ部が閉鎖
時に互いに当接せず、しかも、それらの嵌合部に
設けられた間隙が変形時の逃げ間隙となつて、中
空二重壁構造の優れた点である緩衝効果が全く損
なわれないことは勿論のこと、変形を伴うような
衝撃に対する緩衝効果をも著しく向上させること
ができ、さらに、閉鎖ときにおいて合わせ面がず
れを生ぜず、外観上も優れたブロー成形製プラス
チツクケースを得ることができる等、種々の格別
な効果を奏する。Effects of the Invention As described above, the present invention provides a plastic case consisting of a blow-molded hollow double-walled main body and a lid, and a fitting portion is formed on the mating surfaces of the main body and the lid. One of the pinch-off parts of the body is located on the outside and the other on the inside, the part having the outside pinch-off part forms a flange, and a gap is provided between the inside pinch-off part and one wall surface facing when closed. Because of this, the pinch-off parts that occur during blow molding of the main body and lid do not come into contact with each other when they are closed, and the gap provided in their fitting parts becomes an escape gap during deformation, and the hollow two Not only does the cushioning effect, which is an advantage of the heavy-wall structure, not be impaired at all, but the cushioning effect against deforming impacts can be significantly improved, and the mating surfaces do not shift when closed. Various special effects can be achieved, such as being able to obtain a blow-molded plastic case that does not cause any molding and has an excellent appearance.
第１図は本考案に係るブロー成形製プラスチツ
クケースの一実施例を示す全体斜視図、第２図は
同上開放状態を示す平面図、第３図は第２図にお
けるＡ−Ａ線断面図、第４図は同上Ｂ−Ｂ線断面
図を示し、かつ本体のブロー成形態様を示す金型
断面斜視図である。第５図は従来例を示すブロー
成形製プラスチツクケースの縦断部分斜視図であ
る。
１……本体、２……蓋体、３……ヒンジ、４…
…嵌合部、５……突条、６……係合部、７，８…
…ピンチオフ部、９……フランジ、１０……ピン
チオフ部を有する部分、１１……平坦部、１２…
…間隙、１３，１４……収納リセス、１５……ラ
ツチ、１６……ラツチ受。
Fig. 1 is an overall perspective view showing an embodiment of a blow-molded plastic case according to the present invention, Fig. 2 is a plan view showing the same in the open state, Fig. 3 is a cross-sectional view taken along the line A-A in Fig. 2, FIG. 4 is a cross-sectional view taken along the line B--B of the same as above, and is a cross-sectional perspective view of a mold showing the blow molding mode of the main body. FIG. 5 is a vertical partial perspective view of a conventional blow-molded plastic case. 1...Body, 2...Lid, 3...Hinge, 4...
...Fitting part, 5... Projection, 6... Engagement part, 7, 8...
... pinch-off portion, 9... flange, 10... portion having pinch-off portion, 11... flat portion, 12...
...Gap, 13, 14... Storage recess, 15... Latch, 16... Latch receiver.
Claims (1)
からなり、それらの合わせ面に嵌合部を形成して
なるプラスチツクケースにおいて、本体と蓋体の
ピンチオフ部の一方を外側にかつ他方を内側に位
置させて、外側のピンチオフ部を有する部分でフ
ランジを形成し、内側のピンチオフ部と閉鎖時に
対向する一方の壁面との間に間隙を設けたことを
特徴とするブロー成形製プラスチツクケース。 In a plastic case consisting of a blow-molded hollow double-walled main body and a lid, with a fitting part formed on their mating surfaces, one of the pinch-off parts of the main body and the lid is on the outside and the other is on the inside. A blow-molded plastic case characterized in that the part having the outer pinch-off part forms a flange, and a gap is provided between the inner pinch-off part and one wall surface that faces when closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16453386U JPH0437053Y2 (en) | 1986-10-25 | 1986-10-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16453386U JPH0437053Y2 (en) | 1986-10-25 | 1986-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6370912U JPS6370912U (en) | 1988-05-12 |
| JPH0437053Y2 true JPH0437053Y2 (en) | 1992-09-01 |
Family
ID=31093738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16453386U Expired JPH0437053Y2 (en) | 1986-10-25 | 1986-10-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0437053Y2 (en) |
-
1986
- 1986-10-25 JP JP16453386U patent/JPH0437053Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6370912U (en) | 1988-05-12 |
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