JP2011144458A - Helmet - Google Patents
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- JP2011144458A JP2011144458A JP2010003794A JP2010003794A JP2011144458A JP 2011144458 A JP2011144458 A JP 2011144458A JP 2010003794 A JP2010003794 A JP 2010003794A JP 2010003794 A JP2010003794 A JP 2010003794A JP 2011144458 A JP2011144458 A JP 2011144458A
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- shell
- hard shell
- integrally molded
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- 239000002131 composite material Substances 0.000 claims abstract description 28
- 229920006248 expandable polystyrene Polymers 0.000 claims abstract description 24
- 239000008187 granular material Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims description 25
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 12
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 238000010304 firing Methods 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229920000271 Kevlar® Polymers 0.000 claims description 7
- 239000004761 kevlar Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 239000004417 polycarbonate Substances 0.000 claims description 3
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims 6
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims 2
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims 1
- 238000003825 pressing Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract 1
- 238000005187 foaming Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 229920006327 polystyrene foam Polymers 0.000 description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910021385 hard carbon Inorganic materials 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
Landscapes
- Helmets And Other Head Coverings (AREA)
Abstract
Description
本発明は一体成型のヘルメット及びその製作方法に関し、特にオートバイ或いはレース用のヘルメット及びその製造方法に係る。 The present invention relates to an integrally formed helmet and a manufacturing method thereof, and more particularly to a motorcycle or racing helmet and a manufacturing method thereof.
現在、オートバイ或いはレース用ヘルメットの構造はほぼ同様であり、その外側を比較的硬い外殻体としている（多くはポリカーボネート（ＰＣ）、アクリロニトリル・ブタジエン・スチレン（ＡＢＳ）、炭素繊維、ガラス繊維、ケブラー等の複合素材）。硬質外殻体内部には質が軽く柔らかい素材層により頭部に接触する内装部を形成する。衝突が起きた時は、質が軽く柔らかい内装部が衝撃を吸収し緩衝させる作用を持つ。 Currently, motorcycles and racing helmets have almost the same structure, and the outside is a relatively hard shell (mostly polycarbonate (PC), acrylonitrile butadiene styrene (ABS), carbon fiber, glass fiber, Kevlar). Composite materials). Inside the hard outer shell, an interior part that contacts the head is formed by a light and soft material layer. In the event of a collision, the light and soft interior will absorb and cushion the impact.
前記オートバイ或いはレース用ヘルメットの製造方法の多くは、シェル内部に発砲スチロールを詰めている。即ち、発砲スチロールの顆粒を加熱加圧方式で殻状の内装部を作り、更に発砲スチロールの外側にビニールテープを貼り付け、更に上部硬質シェルを被嵌する。並びに、発砲スチロール内装部の内表層に上部軟質綿を被嵌することにより、頭部が粗雑な発砲スチロールに接しないようにし、しかも、発砲スチロールが損傷しないように保護する。よって、製造工程が複雑である為、生産コストも高くなる。 Many of the methods for manufacturing a motorcycle or racing helmet have foamed polystyrene inside the shell. That is, a foamed polystyrene granule is used to form a shell-like interior by heating and pressing, and a vinyl tape is attached to the outside of the foamed polystyrene, and an upper hard shell is fitted. In addition, the upper soft cotton is put on the inner surface layer of the foamed polystyrene interior portion to prevent the head from coming into contact with the coarse foamed polystyrene and to protect the foamed polystyrene from being damaged. Therefore, since the manufacturing process is complicated, the production cost increases.
また、硬質シェルと発砲スチロールの内装部間には、通常、面ファスナーにより接合しており、隙間が生じ脱落し易く、衝突時の応力が分散し不均一となる為、頭部保護の効果が低下する。 Also, between the hard shell and the foamed polystyrene interior part is usually joined with a hook-and-loop fastener, a gap is created and it is easy to drop off, and the stress at the time of collision is dispersed and uneven, so the head protection effect is effective descend.
また、硬質シェルを炭素繊維、ガラス繊維、ケブラー等の複合素材で製作した場合、通常、合成繊維布に樹脂を塗布して成型するが、繊維間の隙間が大きくなる問題が発生し、並びに、樹脂を使用すると全体重量が増加する。 Also, when the hard shell is made of a composite material such as carbon fiber, glass fiber, Kevlar, etc., it is usually molded by applying a resin to a synthetic fiber cloth, but there is a problem that the gap between the fibers becomes large, and Using resin increases the overall weight.
前記の公知技術は既に特許文献１、特許文献２、及び特許文献３に開示された通りである。 The above-mentioned known techniques are already disclosed in Patent Document 1, Patent Document 2, and Patent Document 3.
上記の通り公知技術には、製造工程が複雑である為の生産コスト高の問題、硬質シェルと発砲スチロールの内装部間の隙間が生じ脱落し易く、衝撃時の応力が分散し不均一となる為、頭部保護の効果が低下する問題、繊維間の隙間が大きくなる問題が発生し、並びに、樹脂を使用すると全体重量が増加する問題が存在する。 As described above, the known technology has a problem of high production cost due to the complicated manufacturing process, and a gap between the hard shell and the foamed polystyrene interior part is easily generated and falls off, and the stress at the time of impact is dispersed and uneven. For this reason, there is a problem that the effect of protecting the head is lowered, a problem that a gap between fibers is increased, and a problem that the total weight is increased when a resin is used.
本発明の目的の一つは、公知技術の欠点と不足点を克服し、上金型と下金型とを重ね合わせた後の硬質シェルに直接発砲スチロール顆粒を注入し加熱加圧方式で殻状内装部を形成し、緊密接合、且つ隙間のない硬質シェルと緩衝内装部を一体成型するヘルメット製造方法の提供により、コスト削減の目的を達成することにある。 One of the objects of the present invention is to overcome the shortcomings and deficiencies of the known technique, and to inject the foamed polystyrene granules directly into the hard shell after the upper mold and the lower mold are overlapped, and to heat the shell by heating and pressing. The object of cost reduction is achieved by providing a helmet manufacturing method in which a hard shell and a buffered interior part are formed integrally by forming a shaped interior part, tightly joining and having no gap.
本発明の第二目的は、公知技術の欠点と不足点を克服し、上金型と下金型とを重ね合わせた後の硬質シェルに直接発砲スチロール顆粒を注入し加熱加圧方式で殻状内装部を形成し、緊密接合、且つ隙間のない硬質シェルと緩衝内装部を一体成型するヘルメット製造方法の提供により、衝撃後の応力を均等分散させ頭部の保護効果を更に高める目的を達成することにある。 The second object of the present invention is to overcome the shortcomings and deficiencies of the known technology, and directly inject the foamed styrene granules into the hard shell after the upper mold and the lower mold are overlapped, and form a shell by heating and pressing. By providing a helmet manufacturing method that forms an interior part, tightly joins, and integrally molds a hard shell and a buffer interior part with no gap, the purpose of further improving the head protection effect by evenly distributing the stress after impact is achieved. There is.
本発明の第三目的は、公知技術の欠点と不足点を克服し、上金型と下金型とを重ね合わせた後の硬質シェルに直接発砲スチロール顆粒を注入し加熱加圧方式で殻状内装部を形成し、更に複合素材シェルの余分な樹脂を排出させ、緊密接合し、しかも隙間のない硬質シェルと緩衝内装部を一体成型するヘルメット製造方法の提供により、重量を軽減しシェルの衝撃力を高める目的を達成することにある。 The third object of the present invention is to overcome the shortcomings and deficiencies of the known technology, and to inject the foamed polystyrene granules directly into the hard shell after the upper mold and the lower mold are overlapped, and to form a shell by heating and pressing. By providing a helmet manufacturing method that forms an interior part, discharges excess resin from the composite material shell, tightly joins, and integrally molds a hard shell and a buffered interior part with no gap, reducing the weight and impact of the shell To achieve the purpose of enhancing power.
本発明のヘルメットは、コスト削減し、衝撃後の応力を均等分散させ頭部の保護効果を更に高め、重量を軽減しシェルの衝撃力を高める効果を有する。 The helmet of the present invention has the effects of reducing costs, uniformly dispersing stress after impact, further enhancing the head protection effect, reducing weight, and increasing the impact force of the shell.
本発明の目的は、下記の技術方案によって実現可能である。 The object of the present invention can be realized by the following technical solution.
上金型に成型済みの硬質シェルの外殻体を被嵌した後、順序に基づいて上金型と下金型を重ねた後、重ね合わせた後の凹部に発砲スチロール顆粒の射出、加熱、発砲、加圧、温度降下等の作業を行う。その特徴は、直接発砲スチロール顆粒を注入し加熱加圧方式で殻状内装部を形成し、更に、複合素材のシェルの余分な樹脂を排出させ、緊密にしっかり接合し、しかも隙間のない硬質シェルと緩衝内装部を一体成型するヘルメットを作ることにある。 After fitting the outer shell of the hard shell that has been molded into the upper mold, after stacking the upper mold and the lower mold based on the order, injection of the fired polystyrene granules into the recessed portion after the stacking, heating, Work such as firing, pressurization, temperature drop. Its features are the direct injection of polystyrene foam and the formation of a shell-like interior by heating and pressurizing, and the excess resin from the shell of the composite material is discharged, tightly joined firmly, and with no gaps It is to make a helmet that integrally molds the buffer interior.
前述の実施例より、本発明には次の如き顕著な効果があることが分かる。 From the above embodiments, it can be seen that the present invention has the following remarkable effects.
（１）発砲スチロール内装部と硬質シェル間の接合において、上金型に既に成型済みの硬質シェルの外殻体を被嵌、その後に順序に基づいて上金型と下金型を重ね合わせ、金型を重ね合わせた後の凹部に発砲スチロール顆粒の射出、加熱、発砲、加圧、温度降下等の作業を行う。その特徴は、直接発砲スチロール顆粒を注入し加熱加圧方式で殻状内装部を形成し、更に、複合素材のシェルの余分な樹脂を排出させ、緊密でしっかり接合し、しかも隙間のない硬質シェルと緩衝内装部を一体成型するヘルメットを作る。これにより、発砲スチロール内装部にビニールテープを貼り付けてシェルを配置する為の工賃、時間の無駄、材料コスト増加などの多くの欠点を取り除く。 (1) In joining between the foamed polystyrene interior and the hard shell, the outer shell of the hard shell that has already been molded is fitted into the upper mold, and then the upper mold and the lower mold are overlapped based on the order, Work such as injection of foamed polystyrene granules, heating, firing, pressurization, temperature drop, etc., into the recesses after the molds are overlaid. Its features are the direct injection of styrene granules and the formation of a shell-like interior by heating and pressurizing. Furthermore, the excess resin of the composite shell is discharged, tightly and firmly joined, and there is no gap. And make a helmet that integrally molds the buffer interior. This eliminates many drawbacks such as labor costs, time wasted, and material costs were increased for placing the shell on the foamed polystyrene interior by attaching vinyl tape.
（２）発砲スチロール内装部と硬質シェル間の接合において、上金型に既に成型済みの硬質シェルの外殻体を被嵌、その後に順序に基づいて上金型と下金型を重ね合わせ、金型を重ね合わせた後の凹部に発砲スチロール顆粒の射出、加熱、発砲、加圧、温度降下等の作業を行う。その特徴は、直接発砲スチロール顆粒を注入し加熱加圧方式で殻状内装部を形成し、更に複合素材のシェルの余分な樹脂を排出させ、緊密でしっかり接合し、しかも隙間のない硬質シェルと緩衝内装部を一体成型するヘルメットを作ることにある。これにより、内装部とシェル間にはほぼ隙間がない為、衝撃を受けた後の応力を均等に分散させて、頭部の安全効果を更に向上させる。 (2) In joining between the foamed polystyrene interior part and the hard shell, the outer shell of the hard shell that has already been molded is fitted into the upper mold, and then the upper mold and the lower mold are overlapped based on the order, Work such as injection of foamed polystyrene granules, heating, firing, pressurization, temperature drop, etc., into the recesses after the molds are overlaid. Its features are the direct injection of polystyrene foam and the formation of a shell-like interior part by heating and pressurizing, and the excess resin of the composite shell is discharged, tightly and firmly joined, and with a hard shell with no gaps The goal is to make a helmet that integrally molds the buffer interior. Thereby, since there is almost no gap between the interior part and the shell, the stress after receiving an impact is evenly distributed to further improve the safety effect of the head.
（３）発砲スチロール内装部と硬質シェル間の接合において、上金型に既に成型済みの硬質シェルの外殻体を被嵌、その後に順序に基づいて上金型と下金型を重ね合わせ、金型を重ね合わせた後の凹部に発砲スチロール顆粒の射出、加熱、発砲、加圧、温度降下等の作業を行う。その特徴は、直接発砲スチロール顆粒を注入し加熱加圧方式で殻状内装部を形成し、更に複合素材のシェルの余分な樹脂を排出させ、緊密でしっかり接合し、しかも隙間のない硬質シェルと緩衝内装部を一体成型するヘルメットを作ることにある。これにより、シェル内に含まれる余分な樹脂を減らし、更にシェルの重量を軽減し、並びに、複合素材間の緊密接合を強化し、シェルの衝撃を受けた時の防御力と耐衝撃性を増強する。 (3) In joining between the foamed polystyrene interior part and the hard shell, the outer shell of the hard shell that has already been molded is fitted into the upper mold, and then the upper mold and the lower mold are overlapped based on the order, Work such as injection of foamed polystyrene granules, heating, firing, pressurization, temperature drop, etc., into the recesses after the molds are overlaid. Its features are the direct injection of polystyrene foam and the formation of a shell-like interior part by heating and pressurizing, and the excess resin of the composite shell is discharged, tightly and firmly joined, and with a hard shell with no gaps The goal is to make a helmet that integrally molds the buffer interior. This reduces the amount of excess resin contained in the shell, further reduces the weight of the shell, and strengthens the tight joint between the composite materials, enhancing the defense and impact resistance when subjected to the impact of the shell. To do.
本発明の製造方法は事前に鋳造成型した硬質シェルに、直接発砲スチロール顆粒を注入し加熱加圧方式で殻状内装部を形成することで、緊密でしっかり接合し、しかも隙間のない硬質シェルと緩衝内装部を一体成型するヘルメットを作ることにある。しかも、一般の伝統的なヘルメットよりも１００〜５００g軽い。そのステップには、次の工程を含む。 In the manufacturing method of the present invention, by directly injecting foamed styrene granules into a hard shell cast and molded in advance and forming a shell-like interior part by a heating and pressurizing method, a tightly and firmly joined hard shell with no gap The goal is to make a helmet that integrally molds the buffer interior. Moreover, it is 100 to 500g lighter than a traditional traditional helmet. The step includes the following steps.
上金型に成型済みの硬質シェルの外殻体を被嵌した後、順序に基づいて上金型と下金型を重ね、金型を１１０℃〜３６０℃まで加熱して複合素材のシェルを軟化させ、１.２Barまで加圧して複合素材のシェル中の余分な樹脂を排出させ、温度を下げて１１０℃まで冷却し、金型を重ね合わせた後の凹部に発砲スチロール顆粒の射出、発砲、０.８〜０.９５Barまでの加圧を行い、３８６秒の時間で内装部の成型作業を完了させ、冷水で１０秒間温度を下げた後に金型を取り外す。 After fitting the outer shell of the molded hard shell on the upper mold, the upper mold and the lower mold are stacked based on the order, and the mold is heated to 110 ° C to 360 ° C to form the composite shell. Soften, pressurize up to 1.2 Bar to discharge excess resin in the shell of composite material, lower the temperature to 110 ° C, and inject the foamed polystyrene granules into the recess after stacking the mold , Pressurize from 0.8 to 0.95 Bar, complete the molding of the interior in 386 seconds, lower the temperature with cold water for 10 seconds, and then remove the mold.
上金型に成型済みの硬質アクリロニトリル・ブタジエン・スチレン（ＡＢＳ）シェルの外殻体を被嵌した後、順序に基づいて上金型と下金型を重ね合わせ、金型を１１０℃まで加熱し、金型を重ね合わせた後の凹部に発砲スチロール顆粒の射出、発砲、０.８〜０.９５Barまでの加圧を行い、３８６秒の時間で内装部の成型作業を完了させ、冷水で１０秒間温度を下げた後に金型を取り外す。 After fitting the outer shell of hard acrylonitrile butadiene styrene (ABS) shell that has been molded into the upper mold, the upper mold and the lower mold are superposed according to the order, and the mold is heated to 110 ° C. , Injection of foamed polystyrene granules, firing, pressurization from 0.8 to 0.95 Bar in the recesses after the molds were overlaid, and the molding of the interior part was completed in a time of 386 seconds. Remove the mold after lowering the temperature for 2 seconds.
上金型に成型済みの硬質ポリカーボネート（ＰＣ）シェルの外殻体を被嵌した後、順序に基づいて上金型と下金型を重ね合わせ、金型を１１０℃まで加熱し、金型を重ね合わせた後の凹部に発砲スチロール顆粒の射出、発砲、０.８〜０.９５Barまでの加圧を行い、３８６秒の時間で内装部の成型作業を完了させ、冷水で１０秒間温度を下げた後に金型を取り外す。 After fitting the outer shell of a molded hard polycarbonate (PC) shell to the upper mold, the upper mold and the lower mold are overlapped based on the order, the mold is heated to 110 ° C, and the mold is Injection of foamed polystyrene granules, firing, pressurization from 0.8 to 0.95 Bar into the concave part after overlapping, complete the molding of the interior part in 386 seconds, and cool the temperature with cold water for 10 seconds After that, remove the mold.
上金型に成型済みの硬質炭素繊維複合素材シェルの外殻体を被嵌した後、順序に基づいて上金型と下金型を重ね合わせ、金型を１１０℃〜３６０℃まで加熱して複合素材のシェルを軟化させ、１.２Barまで加圧して複合素材のシェル中の余分な樹脂を排出させ、温度を下げて１１０℃まで冷却し、金型を重ね合わせた後の凹部に発砲スチロール顆粒の射出、発砲、０.８〜０.９５Barまでの加圧を行い、３８６秒の時間で内装部の成型作業を完了させ、冷水で１０秒間温度を下げた後に金型を取り外す。 After fitting the outer shell of the molded hard carbon fiber composite material shell on the upper mold, the upper mold and the lower mold are overlapped based on the order, and the mold is heated to 110 ° C to 360 ° C. Soften the composite shell, pressurize to 1.2 Bar, discharge excess resin in the composite shell, cool down to 110 ° C, and blow the polystyrene into the recess after stacking the molds The granules are injected, fired, pressurized to 0.8 to 0.95 Bar, the molding of the interior is completed in 386 seconds, the temperature is lowered with cold water for 10 seconds, and the mold is removed.
上金型に成型済みの硬質ガラス繊維複合素材シェルの外殻体を被嵌した後、順序に基づいて上金型と下金型を重ね合わせ、金型を１１０℃〜３６０℃まで加熱して複合素材のシェルを軟化させ、１.２Barまで加圧して複合素材のシェル中の余分な樹脂を排出させ、温度を下げて１１０℃まで冷却し、金型を重ね合わせた後の凹部に発砲スチロール顆粒の射出、発砲、０.８〜０.９５Barまでの加圧を行い、３８６秒の時間で内装部の成型作業を完了させ、冷水で１０秒間温度を下げた後に金型を取り外す。 After fitting the outer shell of the hard glass fiber composite material shell that has been molded into the upper mold, the upper mold and the lower mold are overlapped based on the order, and the mold is heated to 110 ° C to 360 ° C. Soften the composite shell, pressurize to 1.2 Bar, discharge excess resin in the composite shell, cool down to 110 ° C, and blow the polystyrene into the recess after stacking the molds The granules are injected, fired, pressurized to 0.8 to 0.95 Bar, the molding of the interior is completed in 386 seconds, the temperature is lowered with cold water for 10 seconds, and the mold is removed.
上金型に成型済みの硬質炭素繊維、ガラス繊維、ケブラー複合素材シェルの外殻体を被嵌した後、順序に基づいて上金型と下金型を重ね合わせ、金型を１１０℃〜３６０℃まで加熱して複合素材のシェルを軟化させ、１.２Barまで加圧して複合素材シェル中の余分な樹脂を排出させ、温度を下げて１１０℃まで冷却し、金型を重ね合わせた後の凹部に発砲スチロール顆粒の射出、発砲、０.８〜０.９５Barまでの加圧を行い、３８６秒の時間で内装部の成型作業を完了させ、冷水で１０秒間温度を下げた後に金型を取り外す。 After fitting the outer shell of hard carbon fiber, glass fiber, and Kevlar composite material shell into the upper mold, the upper mold and the lower mold are overlapped based on the order, and the mold is 110 ° C. to 360 ° After heating to ℃ to soften the composite shell, pressurize to 1.2 Bar to discharge excess resin in the composite shell, lower the temperature to 110 ℃, and overlay the mold Injection of foamed polystyrene granules into the recess, firing, pressurization from 0.8 to 0.95 Bar, completing the molding of the interior part in a time of 386 seconds, lowering the temperature with cold water for 10 seconds, and then the mold Remove.
Claims (16)
金型の余熱、加圧、冷却、及び金型の重ね合わせ、
金型を重ね合わせた後の凹部に発砲スチロール顆粒の射出、加熱、発砲、加圧、成型を行い、
冷却後、金型を取り外すことを特徴とする一体成型ヘルメットの製作方法。 Fit the outer shell of the molded hard shell into the upper mold,
Residual heat of mold, pressurization, cooling, and stacking of mold,
Injecting, heating, firing, pressurizing, and molding styrene granules in the recess after overlapping the molds,
A method of producing an integrally molded helmet, wherein the mold is removed after cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010003794A JP2011144458A (en) | 2010-01-12 | 2010-01-12 | Helmet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010003794A JP2011144458A (en) | 2010-01-12 | 2010-01-12 | Helmet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2011144458A true JP2011144458A (en) | 2011-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010003794A Pending JP2011144458A (en) | 2010-01-12 | 2010-01-12 | Helmet |
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| Country | Link |
|---|---|
| JP (1) | JP2011144458A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114929052A (en) * | 2019-11-04 | 2022-08-19 | 玛特产品和技术有限公司 | Method for manufacturing a body protecting device and body protecting device produced thereby |
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2010
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114929052A (en) * | 2019-11-04 | 2022-08-19 | 玛特产品和技术有限公司 | Method for manufacturing a body protecting device and body protecting device produced thereby |
| CN114929052B (en) * | 2019-11-04 | 2025-02-11 | 玛特产品和技术有限公司 | Method for producing a body protection device and the body protection device produced thereby |
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