JPH0352339B2 - - Google Patents

Info

Publication number
JPH0352339B2
JPH0352339B2 JP60042445A JP4244585A JPH0352339B2 JP H0352339 B2 JPH0352339 B2 JP H0352339B2 JP 60042445 A JP60042445 A JP 60042445A JP 4244585 A JP4244585 A JP 4244585A JP H0352339 B2 JPH0352339 B2 JP H0352339B2
Authority
JP
Japan
Prior art keywords
synthetic resin
nail
short fibers
nails
cut
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
JP60042445A
Other languages
English (en)
Other versions
JPS61199940A (ja
Inventor
Kyoshi Morisane
Kenji Kawabata
Hiroshi Kaida
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.)
Sekisui Jushi Corp
Original Assignee
Sekisui Jushi Corp
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 Sekisui Jushi Corp filed Critical Sekisui Jushi Corp
Priority to JP60042445A priority Critical patent/JPS61199940A/ja
Publication of JPS61199940A publication Critical patent/JPS61199940A/ja
Publication of JPH0352339B2 publication Critical patent/JPH0352339B2/ja
Granted legal-status Critical Current

Links

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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/027—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles having an axis of symmetry
    • B29C2043/029—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles having an axis of symmetry using axial compression along a longitudinal axis
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/06—Rods, e.g. connecting rods, rails, stakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/727—Fastening elements
    • B29L2031/7286—Nails

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は繊維補強合成樹脂製釘の製造方法に関
するものである。
（従来の技術） 従来、繊維補強合成樹脂製釘は射出成形によつ
て成形されていた。
（発明が解決しようとする問題点） しかしながら、従来の射出成形によつて釘を成
形する場合、軸長、軸径の異なる各種釘に応じた
それぞれの射出成形用金型が必要であり、又短繊
維による金型の摩耗が激しくコスト高となつてい
た。
更に、射出成形では合成樹脂に含有できる短繊
維の長さに限度があり、成形された釘の強度が不
十分である問題点があつた。
（問題点を解決するための手段） そこで本発明は従来の問題点に鑑み鋭意研究の
結果短繊維を含有した熱可塑性合成樹脂材料を所
定の径の細棒状に連続的に押出成形した後、釘の
所定の長さよりやや長い寸法に順次切断し、該切
断した棒状体の一端に尖鋭加工を施すと共に他端
を加熱しつつ長さ方向に圧縮加工して頭部を形成
することにより上述の問題点を解消した繊維補強
合成樹脂製釘の製造方法を完成したのである。
以下、本発明について順次その製造工程に沿つ
て説明する。
まず、押出成形機によりガラス繊維等の短繊維
が含有されたポリ塩化ビニル、ABS樹脂、ポリ
アミド、ポリカーボネート等の熱可塑性合成樹脂
材料を所定の径の細棒状に連続的に押出成形す
る。短繊維はあらかじめ合成樹脂と混合されて押
出成形機に供給されてもよいし、別々に押出成形
機に供給されて、押出成形機内で樹脂と短繊維が
混合されてもよい。又、このとき細棒状に押出成
形した押出物は合成樹脂中に押出方向に沿つて短
繊維が並んだ状態となされている。
次いで押出成形した細棒状の押出物を釘の所定
の長さよりやや長い寸法に順次連続的に切断し、
釘の素材となる棒状体を形成する。
次いで、該棒状体の一端に釘の尖鋭部を形成す
るための尖鋭加工を施し、他端に釘の軸径よりも
大きくなされた頭部を形成するために、変形し得
る温度に加熱しつつ、長さ方向外方からの押圧力
を加えて圧縮し成形する。又、上述の尖鋭加工は
棒状体を切削したり、あるいは加熱して変形加工
してもよい。このようにして短繊維により補強さ
れた合成樹脂製釘が形成される。
（発明の効果） 以上詳述した如く、本発明は短繊維を含有した
熱可塑性合成樹脂材料を所定の径のの細棒状に連
続的に押出成形するので、同径であれば種々の長
さの釘を製造することができる。
また本発明は切断した棒状体の一端を尖鋭加工
すると共に他端を加熱しつつ長さ方向に圧縮加工
するので先端の尖鋭角度を自由に設定することが
できると共に頭部の大きさも自由に設定すること
ができ、一種類の太さの棒状体から用途に応じて
種々の合成樹脂釘を製造することができる。
さらに本発明は短繊維を含有した熱可塑性合成
樹脂材料を押出成形するので、合成樹脂材料に含
有された短繊維は押出方向すなわち釘の長さ方向
に揃い釘の剛性が向上上する。
したがつて、本発明によれば十分な強度を有す
る安価な釘を各種提供できるのである。

Claims (1)

    【特許請求の範囲】
  1. １ 短繊維を含有した熱可塑性合成樹脂材料を所
    定の径の細棒状に連続的に押出成形した後、釘の
    所定の長さよりやや長い寸法に順次切断し、該切
    断した棒状体の一端に尖鋭加工を施すと共に他端
    を加熱しつつ長さ方向に圧縮加工して頭部を形成
    することを特徴とする繊維補強合成樹脂製釘の製
    造方法。
JP60042445A 1985-03-04 1985-03-04 繊維補強合成樹脂製釘の製造方法 Granted JPS61199940A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60042445A JPS61199940A (ja) 1985-03-04 1985-03-04 繊維補強合成樹脂製釘の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60042445A JPS61199940A (ja) 1985-03-04 1985-03-04 繊維補強合成樹脂製釘の製造方法

Publications (2)

Publication Number Publication Date
JPS61199940A JPS61199940A (ja) 1986-09-04
JPH0352339B2 true JPH0352339B2 (ja) 1991-08-09

Family

ID=12636271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60042445A Granted JPS61199940A (ja) 1985-03-04 1985-03-04 繊維補強合成樹脂製釘の製造方法

Country Status (1)

Country Link
JP (1) JPS61199940A (ja)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52104575A (en) * 1976-03-01 1977-09-02 Akira Akita Method of manufacture of plastic nails reinforced with fiber

Also Published As

Publication number Publication date
JPS61199940A (ja) 1986-09-04

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