JPH047287B2 - - Google Patents
Info
- Publication number
- JPH047287B2 JPH047287B2 JP58089588A JP8958883A JPH047287B2 JP H047287 B2 JPH047287 B2 JP H047287B2 JP 58089588 A JP58089588 A JP 58089588A JP 8958883 A JP8958883 A JP 8958883A JP H047287 B2 JPH047287 B2 JP H047287B2
- Authority
- JP
- Japan
- Prior art keywords
- bag
- structural member
- foamable material
- foaming
- foam
- 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
- 239000000463 material Substances 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 14
- 238000005187 foaming Methods 0.000 claims description 11
- 239000006260 foam Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 239000008258 liquid foam Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000565 sealant Substances 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
- B29C44/182—Filling flexible bags not having a particular shape
- B29C44/184—Filling flexible bags not having a particular shape and inserting the bags into preformed cavities
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は発泡性ポリウレタン等の液状発泡性材
料を、目的とする構造部材等の空間内に発泡充填
する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for foam-filling a liquid foamable material such as foamable polyurethane into a space of a target structural member or the like.
(従来技術)
自動車のボデーのような各種構造部材内の空間
に補強や断熱など多種、多様な目的で液状発泡性
材料を注入し発泡充填させることが行われてい
る。(Prior Art) Liquid foamable materials are injected and foam-filled into spaces within various structural members such as automobile bodies for various purposes such as reinforcement and heat insulation.
しかしながら液状発泡性材料を各種構造部材内
の空間に単に注入発泡させた場合には、構造部材
に隙間があると液状発泡性材料がその部分から外
部に流出するという問題を生ずる。このような問
題を避けるため従来は構造部材は予じめ発泡の際
の空気が逃げる部分を残して他はセロハンテープ
などを用いて隙間をシールするとか、または予じ
め隙間のないような部材に仕上げたものを用いて
いた。そのため作業効率が悪く、また作業時に液
状発泡性材料が漏れ出た場合には作業環境が悪化
するなどの欠点を有していた。上記の理由により
従来法においては一部に隙間があるような部材に
液状発泡性材料を発泡充填させることは困難であ
つた。 However, when the liquid foamable material is simply injected into the spaces within various structural members and foamed, if there is a gap in the structural member, a problem arises in that the liquid foamable material flows out from the gap. In order to avoid such problems, in the past, structural members were prepared in advance by leaving a section for air to escape during foaming, and sealing the remaining gaps using cellophane tape, or by making structural members with no gaps in advance. They used the ones that had been finished in the following. Therefore, the work efficiency is poor, and if the liquid foamable material leaks during work, the work environment deteriorates. For the above-mentioned reasons, it has been difficult in the conventional method to foam-fill a member with a partial gap with a liquid foamable material.
(発明の目的)
本発明は上記従来技術の問題点を解決するため
のものであり、その目的とするところはシール材
等による完全密閉を必要とせずにいかなる形状の
構造部材内へも液状発泡性材料を簡単に発泡充填
することができる方法を提供することにある。(Object of the Invention) The present invention is intended to solve the above-mentioned problems of the prior art, and its purpose is to form a liquid foam into a structural member of any shape without requiring complete sealing with a sealant or the like. The purpose of the present invention is to provide a method for easily foam filling a plastic material.
(発明の構成)
すなわち本発明の発泡体の充填方法は発泡性材
料を発泡させたときに充填すべき構造部材等の内
部空間の形状に対応して広がる袋体を前記内部空
間に挿入し、該袋体内に所定量の液状発泡性材料
を注入し発泡させることを特徴とする。(Structure of the Invention) That is, the method for filling a foam according to the present invention involves inserting into the internal space a bag that expands in accordance with the shape of the internal space of the structural member or the like to be filled when the foamable material is foamed; The method is characterized in that a predetermined amount of liquid foamable material is injected into the bag and foamed.
本発明で使用される袋体としては、ゴム等のよ
うに伸縮性があり、発泡性材料の発泡圧に押され
て充填すべき空間内に一杯に広がるものが好まし
いが、必ずしもこのようなものではなくてもよ
い。すなわち予じめ空間内一杯に広がるような大
きさの袋であつてもよい。 The bag used in the present invention is preferably one that is stretchable, such as rubber, and is pushed by the foaming pressure of a foaming material to completely fill the space to be filled, but such a bag is not necessarily used. It doesn't have to be. In other words, the bag may be sized in advance to fill the entire space.
袋体としては、ゴム製のほか、ポリエチレン、
ポリプロピレン等のプラスチツク製のものであつ
てもよい。これらは使用場所、充填量、発泡性材
料の種類等により形状、大きさ等は最適のものを
選択するとよい。発泡性材料により溶解しない材
質または充分な厚さを有するものを使用すること
は勿論である。 The bag body can be made of rubber, polyethylene,
It may also be made of plastic such as polypropylene. The shape, size, etc. of these should be optimally selected depending on the place of use, filling amount, type of foamable material, etc. Of course, a material that is not dissolved by the foamable material or has sufficient thickness is used.
袋体は発泡の途中で破いてもよいし、破かなく
てもよい。また袋体には必要に応じその外面に熱
接着性接着剤などを塗布しておけば、発泡後加熱
することにより発泡体を構造部材内により強固に
固定できる。 The bag may or may not be torn during foaming. Furthermore, if the outer surface of the bag is coated with a heat-adhesive adhesive or the like, if necessary, the foam can be more firmly fixed within the structural member by heating after foaming.
上記の液状発泡性材料を袋状容器内に注入後ク
リツプ等で密封して構造部材内に収め発泡させる
ためにしばらく放置するかまたは必要ならば加温
する。発泡が進み液状発泡性材料が高粘性となつ
て構造部材の隙間等より流出しなくなるまでは上
記袋状容器を破らないようにする。その後袋体の
口を開いて更に発泡を続けると液状発泡性材料は
完全に発泡体となつて固化し構造部材内を満して
充填が完了する。 After the liquid foamable material is poured into a bag-like container, it is sealed with a clip or the like and placed inside a structural member, and left for a while to foam or heated if necessary. The bag-shaped container is not torn until foaming progresses and the liquid foamable material becomes highly viscous and no longer flows out through the gaps between the structural members. Thereafter, when the bag is opened and foaming is continued, the liquid foamable material completely solidifies into a foam and fills the inside of the structural member, completing the filling.
(実施例)
以下の実施例において本発明を更に詳細に説明
する。なお本発明は下記実施例に限定されるもの
ではない。(Example) The present invention will be explained in further detail in the following example. Note that the present invention is not limited to the following examples.
図は本発明の方法を示す構造部材の一部破断斜
視図である。 The figure is a partially cutaway perspective view of a structural member illustrating the method of the invention.
平板パネル1およびコ字型パネル2より構成さ
れ、コ字型パネル2上に部品取付穴3を有する構
造部材内に、注入具4の注入端に袋体として天然
ゴム製の風船55を装着したものを注入口6より
挿入した。注入具4より液状発泡性ポリウレタン
原料を注入した後風船5の口をクリツプで密封
し、注入具より切離して構造部材内に収めた。発
泡が始まり隙間から流出しない程度の粘度となつ
たところで針で風船5を破裂させた。更に発泡を
続けると構造部材内全体に発泡体が充填された。
本発明の方法は従来法に比べて作業環境下におけ
るイソシアネート化合物の刺激臭を著しく減少さ
せることができた。 A balloon 55 made of natural rubber was attached as a bag to the injection end of the injection tool 4 in a structural member consisting of a flat panel 1 and a U-shaped panel 2 and having a component mounting hole 3 on the U-shaped panel 2. The material was inserted through the injection port 6. After injecting the liquid foamable polyurethane raw material through the injection tool 4, the mouth of the balloon 5 was sealed with a clip, and the balloon 5 was separated from the injection tool and placed inside a structural member. When foaming started and the viscosity reached such a level that it would not flow out from the gap, the balloon 5 was burst with a needle. When foaming was continued, the entire structural member was filled with foam.
The method of the present invention was able to significantly reduce the irritating odor of isocyanate compounds in the working environment compared to conventional methods.
(発明の効果)
上述のように本発明の発泡体の充填方法は液状
発泡性材料を伸縮性袋状容器に入れて構造部材内
に挿入し適当な粘度となるまで発泡させるもので
あるため、構造部材の隙間や穴を密閉する必要が
なくまたそのための材料等も必要としないため作
業能率を大きく増大させると共に材料費等の節約
にも効果がある。また液体発泡性材料の作業環境
雰囲気内への拡散を最小限度に抑えることができ
るため作業環境改善にも大きな効果を奏する。(Effects of the Invention) As described above, the foam filling method of the present invention involves placing a liquid foamable material in a stretchable bag-like container, inserting it into a structural member, and foaming it until it reaches an appropriate viscosity. Since there is no need to seal gaps and holes in structural members, and no materials are required for this purpose, it is effective in greatly increasing work efficiency and reducing material costs. Furthermore, since the diffusion of the liquid foamable material into the working environment atmosphere can be suppressed to a minimum, it has a great effect on improving the working environment.
図は本発明の方法を示す構造部材の一部破断斜
視図である。
図中、1……平板パネル、2……コ字型パネ
ル、3……部品取付穴、4……注入具、5……風
船、6……注入口。
The figure is a partially cutaway perspective view of a structural member illustrating the method of the invention. In the figure, 1... Flat panel, 2... U-shaped panel, 3... Parts mounting hole, 4... Injector, 5... Balloon, 6... Inlet.
Claims (1)
造部材等の内部空間の形状に対応して広がる袋体
を前記内部空間に挿入し、該袋体内に所定量の液
状発泡性材料を注入し発泡させることを特徴とす
る発泡体の充填方法。1. A bag that expands to correspond to the shape of the internal space of the structural member, etc. to be filled when the foamable material is foamed is inserted into the internal space, and a predetermined amount of liquid foamable material is injected into the bag. A foam filling method characterized by foaming.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58089588A JPS59214628A (en) | 1983-05-21 | 1983-05-21 | Method of filling with foamed body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58089588A JPS59214628A (en) | 1983-05-21 | 1983-05-21 | Method of filling with foamed body |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59214628A JPS59214628A (en) | 1984-12-04 |
JPH047287B2 true JPH047287B2 (en) | 1992-02-10 |
Family
ID=13974935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58089588A Granted JPS59214628A (en) | 1983-05-21 | 1983-05-21 | Method of filling with foamed body |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59214628A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8627342D0 (en) * | 1986-11-15 | 1986-12-17 | Dow Corning Ltd | Providing foamed mass in cavity |
US5449478A (en) * | 1993-05-11 | 1995-09-12 | Gunnell, Inc. | Contoured seating construction and method |
JP3409561B2 (en) * | 1996-02-19 | 2003-05-26 | 東海ゴム工業株式会社 | Method for manufacturing vehicle structure |
IT1294136B1 (en) * | 1997-06-24 | 1999-03-22 | Flavio Selan | ELEMENT FOR CONTAINING EXPANDED MATERIALS USED FOR THE INSULATION OF WALLS, PARTICULARLY OF REFRIGERATORS |
US7484946B2 (en) | 2005-08-19 | 2009-02-03 | Zephyros, Inc. | Method and assembly for locating material within a structure |
-
1983
- 1983-05-21 JP JP58089588A patent/JPS59214628A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59214628A (en) | 1984-12-04 |
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