WO2019127030A1 - 安全帽及其制造方法 - Google Patents

安全帽及其制造方法 Download PDF

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Publication number
WO2019127030A1
WO2019127030A1 PCT/CN2017/118675 CN2017118675W WO2019127030A1 WO 2019127030 A1 WO2019127030 A1 WO 2019127030A1 CN 2017118675 W CN2017118675 W CN 2017118675W WO 2019127030 A1 WO2019127030 A1 WO 2019127030A1
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WO
WIPO (PCT)
Prior art keywords
frame
casing
manufacturing
helmet
cap body
Prior art date
Application number
PCT/CN2017/118675
Other languages
English (en)
French (fr)
Inventor
何凱文
Original Assignee
丰阁行销设计有限公司
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 丰阁行销设计有限公司 filed Critical 丰阁行销设计有限公司
Priority to CN201780093999.0A priority Critical patent/CN111065289B/zh
Priority to PCT/CN2017/118675 priority patent/WO2019127030A1/zh
Priority to EP17936777.6A priority patent/EP3733010B1/en
Priority to TW106146080A priority patent/TWI680853B/zh
Priority to US16/232,683 priority patent/US11350687B2/en
Publication of WO2019127030A1 publication Critical patent/WO2019127030A1/zh
Priority to US17/160,786 priority patent/US20210145106A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A42B3/125—Cushioning devices with a padded structure, e.g. foam
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/062—Impact-absorbing shells, e.g. of crash helmets with reinforcing means
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/105—Linings with additional protection for the neck
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42C—MANUFACTURING OR TRIMMING HEAD COVERINGS, e.g. HATS
    • A42C2/00—Manufacturing helmets by processes not otherwise provided for
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42C—MANUFACTURING OR TRIMMING HEAD COVERINGS, e.g. HATS
    • A42C2/00—Manufacturing helmets by processes not otherwise provided for
    • A42C2/002—In-mould forming
    • 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
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/28—Ventilating arrangements
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14467—Joining articles or parts of a single article
    • B29C2045/14524—Joining articles or parts of a single article making hollow articles
    • 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
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • 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
    • B29L2031/48—Wearing apparel
    • B29L2031/4807—Headwear
    • B29L2031/4814—Hats
    • B29L2031/4821—Helmets
    • 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
    • B29L2031/768—Protective equipment

Definitions

  • the present invention relates to a safety helmet, and more particularly to a method of manufacturing a safety helmet and a structure thereof.
  • the conventional helmet manufacturing method mainly combines the outer cap and the inner pad, and then glues or otherwise combines the two.
  • a cap and an anvil are separately produced, wherein the cap is formed by in-mold forming technology, and the anvil is formed by injection molding, and the two are separately glued or otherwise. They are assembled in a detachable manner (such as a devil's felt), and the liner is placed on the inner wall of the cap in a manner that is directly fixed or detachable (such as a devil's felt).
  • the pad is directly fixed or detachable (such as a devil felt) on the inner wall of the cap body, wherein the cap body adopts injection molding technology, and the pad body is used. It is made by winding a wire.
  • the cap and the liner are separately formed, and the two are combined, wherein the cap is made of high-density plastic, and the elastic pad is made by injection molding.
  • Another object of the present invention is to provide a helmet.
  • the present invention provides a method of manufacturing a helmet comprising the following steps. Step a), first preparing a cap shell and a guard shell, the cap shell having a head and two opposite cheek portions, the cheek portions being integrated from the left and right ends of the head Extending downwardly, the frame outer casing has a shin guard portion and a guard neck extending integrally rearward from a rear end of the shin guard portion, step b), and then the cap body shell
  • the frame shells are placed together in a mold such that the bottom edge of the cheek portion of the cap body abuts against the top edge of the neck portion of the frame shell, step c), and then a foamed material is injected
  • the foamed material is heated and pressurized, and the foamed material is expanded and coupled to the inner peripheral surface of the cap body and the inner peripheral surface of the frame shell, step d), and finally to be completed.
  • the mold is removed after the bubble process to obtain a finished helmet.
  • the manufacturing method of the present invention allows the foamed material to be closely attached to the inner peripheral surface of the cap body and the inner peripheral surface of the frame outer casing, so that the final product can effectively improve the structural strength.
  • the cap body can be integrally formed by vacuum forming technology, or a body and a bead strip can be prepared by vacuum forming technology, and the bead bar is attached to the front edge of the body. form. After the preparation is completed, the processing can be further performed to further achieve the lightweight and gas permeable effect of the cap body.
  • the frame shell can be integrally formed by vacuum forming technology, or two arc-shaped frames can be prepared by vacuum forming technology, and then the two arc-shaped frames can be formed by butting each other, or even Firstly, two curved frames and one end cover are prepared by vacuum forming technology, and then the end cover abuts the front ends of the two curved frames, and the rear ends of the two curved frames are butted against each other, so that The two curved frames together with the end cap form the frame outer casing. After the preparation is completed, the processing can be further performed, thereby further achieving the lightweight and gas permeable effect of the frame outer casing.
  • the cap housing has a plurality of hollowed out slots.
  • the frame housing has a plurality of hollow slots.
  • step b) a skeleton is placed in the mold together with the cap casing and the frame casing so that the skeleton is located inside the casing casing; in step c), the skeleton is The foamed material is covered.
  • the skeleton has a plurality of tapered portions on one side of the frame outer casing.
  • the present invention also provides a helmet made by the above manufacturing method, comprising:
  • a cap body having a head and two opposite cheek portions, the cheek portions extending integrally downward from the left and right ends of the head;
  • a frame outer casing having a shin guard portion and a guard neck extending integrally rearward from a rear end of the shin guard portion, and a top edge of the guard neck portion of the shield shell outer shell a bottom edge of the cheek portion of the cap body;
  • a foam body is disposed on an inner circumferential surface of the cap body and an inner circumferential surface of the frame outer casing for bonding the cap outer casing and the frame outer casing.
  • the helmet of the present invention is formed by abutting two opposite curved frames, and the front ends of the two arcuate frames abut each other to form the shin portion, and the two curved frames are The rear ends abut each other to form the guard neck.
  • the helmet of the present invention has two opposite curved frames and one end cover, and the front ends of the two curved frames abut against the end cover, so that the front ends of the two curved frames are
  • the end caps jointly form the shin guard, and the rear ends of the two arcuate frames abut each other to form the guard neck.
  • the frame shell is an annular body.
  • the helmet of the present invention further includes a skeleton disposed on the inner side of the frame of the frame and covered by the foam.
  • the helmet of the present invention wherein the skeleton has a plurality of tapered portions toward a side of the frame casing.
  • the frame casing has a plurality of hollow grooves, and the inner peripheral surface of the frame casing is provided with the foam at a position other than the hollow grooves.
  • the cap body has a plurality of hollow grooves, and the inner peripheral surface of the cap body is provided with the foam at a position other than the plurality of hollow grooves.
  • the cap body has a body and a bead strip, and the body has the head and the two cheeks, and the bead is attached to the front edge of the body.
  • the preparation method can achieve the effects of light weight and gas permeability of the cap body and the frame outer casing;
  • the safety cap is mainly a foam body which is expanded and matured by the foaming material, and the cap body shell and the frame shell Combined, the gap between each other is eliminated to achieve the effect of enhancing the structural strength.
  • Fig. 1 is a flow chart showing a manufacturing method of a first embodiment of the present invention.
  • Fig. 2 is a perspective view showing the appearance of a helmet according to a first embodiment of the present invention.
  • Fig. 3 is an exploded perspective view showing the helmet according to the first embodiment of the present invention.
  • Fig. 4 is a schematic view showing the manufacturing method of the first embodiment of the present invention, mainly showing a state in which the cap body and the frame casing are placed together in the mold.
  • Fig. 5 is an exploded perspective view showing the helmet according to the second embodiment of the present invention.
  • Figure 6 is an exploded perspective view of a helmet according to a third embodiment of the present invention.
  • Figure 7 is an exploded perspective view of a helmet according to a fourth embodiment of the present invention.
  • Figure 8 is an exploded perspective view of a helmet according to a fifth embodiment of the present invention.
  • Fig. 9 is a schematic view showing a manufacturing method according to a fifth embodiment of the present invention, mainly showing a state in which a cap body casing, a frame casing and a skeleton are placed together in a mold.
  • Fig. 10 is a partial enlarged view of Fig. 9.
  • the manufacturing method of the first embodiment of the present invention includes the following steps.
  • Step a): A cap housing 20 and a frame housing 30 are prepared.
  • the cap body 20 has a body 21 and a beading strip 25.
  • the body 21 and the beading strip 25 are integrally formed by vacuum forming technology, and the body 21 has a structural aspect.
  • a guard head 22 and two opposite cheek portions 24, the two cheek portions 24 extend integrally downward from the left and right ends of the head portion 22, and the edge guard 25 is attached to the front edge of the body 21;
  • the frame housing 30 has two opposite curved frames 31 and one end cover 32.
  • the curved frame 31 and the end cover 32 are integrally formed by vacuum forming technology, and the front ends of the two curved frames 31 are formed. Abutting the end cap 32, the front end of the two arcuate frames 32 and the end cap together form a shin guard portion 34.
  • the rear ends of the two arcuate frame bodies 32 abut each other to form a guard neck portion 36.
  • the foaming material 40 may be EPS, EPP, EPO or EPE, which is not limited herein.
  • the cap housing 20 and the frame housing 30 can be separately processed after the respective preparations are completed, so that the cap housing 20 and the frame housing 30 respectively have a plurality of hollow slots. 26, 38, these hollow grooves 26, 38 can provide the effect of light weight and gas permeability, as the foamed material 40 injected in step c) is distributed outside the hollow grooves 26, 38 according to the structural design of the mold 12. The position does not obscure the hollow slots 26, 38.
  • the cap casing 28 is integrally formed by vacuum forming technology.
  • the frame housing 50 has a two-piece structure. As shown in FIG. 6, the frame housing 50 has two opposite curved frames 52, and each of the curved frames 52 is vacuumed.
  • the molding technology is integrally formed, and the front ends of the two arc-shaped frames 52 abut each other to form the shin guard portion 54. The rear ends of the two arc-shaped frames 52 abut each other to form the guard neck 56.
  • the frame outer casing 60 is an annular body integrally formed by a vacuum forming technique, and as shown in Fig. 7, the shin guard portion 62 of the unitary frame casing 60 is located in the first half of the arc shape. In part, the guard neck 64 of the unitary frame housing 60 is located in the rear half of the curved portion.
  • a skeleton 70 is placed in the mold 12 along with the cap casing 20 and the frame casing 30, and then in the step.
  • the foamed material 40 injected in c) is combined with the frame outer casing 30 and the frame outer casing 30 after the expansion and aging, and the skeleton 70 is entirely covered at the same time, so that the overall structure can be lifted by the skeleton 70.
  • Strength of. As further shown in Figures 9 and 10, the frame 70 has a plurality of tapered portions 72 on one side of the frame housing 30. These tapered portions 72 serve on the one hand to maintain a proper gap between the frame 70 and the frame housing 30.
  • the foamed material 40 can be smoothly filled between the skeleton 70 and the frame outer casing 30, and on the other hand, the bonding force between the skeleton 70 and the foamed material 40 can be increased, so that the two are not easily separated.
  • the frame housing 30 is assisted by the three-piece structure of the first embodiment in the present embodiment.
  • the frame housing may also use the two of the foregoing third embodiments.
  • the frame outer casing 30 may reserve at least one slot in the shin guard portion 34 and/or the guard neck portion 36 to partially expose the skeleton 70, so that the entire finished product exhibits different styling styles.
  • the manufacturing method of the present invention allows the foamed material 40 to closely fit the inner peripheral surface of the cap casing 20 and the inner peripheral faces of the frame casings 30, 50, 60, and allows the gap between each other to be Minimize to the extent that this can greatly increase the structural strength of the finished product. Further, since the foam 42 is uniformly distributed on the inner peripheral surface of the cap casing 20 and the inner peripheral faces of the frame casings 30, 50, 60, the foam 42 can effectively disperse the cap casing 20 or the frame casing The external force shocks of 30, 50, and 60 provide better protection for the user.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Helmets And Other Head Coverings (AREA)

Abstract

一种安全帽(10)及其制造方法，该制造方法包括，首先制备一帽体外壳(20)与一护框外壳(30)，其中的帽体外壳(20)具有两相对的护颊部(24)，护框外壳(30)具有一护颚部(34)与一连接护颚部(34)的护颈部(36)，接着将帽体外壳(20)与护框外壳(30)共同置放于一模具(12)内，使帽体外壳(20)的护颊部(24)的底缘抵接于护框外壳(30)的护颈部(36)的顶缘，然后注入一发泡材料(40)于模具(12)内，并对发泡材料(40)进行加温加压，使发泡材料(40)膨胀结合于帽体外壳(20)的内周面与护框外壳(20)的内周面，最后从模具取出一安全帽(10)成品。如此的制造方法可让最后的成品达到提升结构强度的效果，尤其因为一体成型的关系，使护框外壳(30)在对应下颚位置的护颚部(34)会因此增加强度。

Description

安全帽及其制造方法 技术领域
本发明与安全帽有关，特别是指一种安全帽的制造方法及其结构。
背景技术
传统安全帽的制造方法主要将外部的帽壳与内部的衬垫各自成型之后，以胶合或其他方式将两者结合在一起。举例来说，如US 7,243,387专利案分别制作帽壳与护颚件，其中的帽壳是采用模内成型技术，护颚件则是采用射出成型技术，两者分别制作完成之后再以胶合或其他可拆卸(如魔鬼毡)的方式组装在一起，至于衬垫是用直接固定或可拆卸(如魔鬼毡)的方式设置于帽壳的内壁。另外如TW566096号专利案分别制作帽体与衬垫之后，再将衬垫以直接固定或可拆卸(如魔鬼毡)的方式配置于帽体的内壁，其中的帽体采用射出成型技术，衬垫是由一条线材所卷绕定型而成。再如US 5,298,208号专利案也是分别制作帽壳与衬垫之后，再将两者结合在一起，其中帽壳由高密度塑料所制成，弹性衬垫则是采用射出成型技术。
然而，由于安全帽的形状通常较为复杂，若要让帽壳与衬垫之间达到完全贴合的效果，在制程当中所使用的黏胶数量会非常的多，这样势必会导致成本的提升及成品重量的增加，所以在成本的考虑之下，两者之间会采取局部贴合的方式，如此在其他没有相互贴合的位置会有间隙产生，这些间隙将会影响安全帽的结构强度而减低对使用者的保护效果。
发明内容
本发明的目的在于提供一种安全帽的制造方法，其能让最后的成品提升结构强度。
本发明的另一目的在于提供一种安全帽。
为了实现上述目的，本发明提供一种安全帽的制造方法，包含有下列几个步骤。步骤a)，首先制备一帽体外壳与一护框外壳，该帽体外壳具有一护头部与两相对的护颊部，该两护颊部自该护头部的左、右两端一体地往下延伸，该护框外壳具有一护颚部与一护颈部，该护颈部自该护颚部的后端一体地往后延 伸，步骤b)，接着将该帽体外壳与该护框外壳共同置放于一模具内，使该帽体外壳的护颊部的底缘抵接于该护框外壳的护颈部的顶缘，步骤c)，之后再注入一发泡材料于该模具内，并对该发泡材料进行加温加压，使该发泡材料膨胀结合于该帽体外壳的内周面与该护框外壳的内周面，步骤d)，最后待完成发泡程序之后将该模具取下，以获得一安全帽成品。
由上述可知，本发明的制造方法可以让该发泡材料紧密地贴合于该帽体外壳的内周面与该护框外壳的内周面，使最后的成品能够有效提升结构强度。
更佳地，该帽体外壳可以由真空成型技术所一体制成，也可以先由真空成型技术制备出一个本体与一个护边条，再将该护边条接设于该本体的前缘而形成。在制备完成之后可以再进行加工，借以进一步让该帽体外壳达到轻量化及透气性的效果。
更佳地，该护框外壳可以由真空成型技术所一体制成，也可以先由真空成型技术制备出两个弧形框体，再将该两弧形框体相互对接而形成，甚至也可以先由真空成型技术制备出两个弧形框体与一个端盖，再将该端盖抵接于该两弧形框体的前端，并将该两弧形框体的后端相互对接，使该两弧形框体与该端盖共同形成该护框外壳。在制备完成之后可以再进行加工，借以进一步让该护框外壳达到轻量化及透气性的效果。
更佳地，在步骤a)，该帽体外壳具有多个镂空槽。
更佳地，在步骤a)，该护框外壳具有多个镂空槽。
更佳地，在步骤b)，将一骨架连同该帽体外壳与该护框外壳共同置放于该模具内，使该骨架位于该护框外壳的内侧；在步骤c)中，该骨架被该发泡材料所包覆住。
更佳地，该骨架朝该护框外壳的一侧面具有多个锥部。
为实现上述目的，本发明还提供一种上述制造方法所制成的安全帽，包含有：
一帽体外壳，该帽体外壳具有一护头部与两相对的护颊部，该两护颊部自该护头部的左、右两端一体地往下延伸；
一护框外壳，该护框外壳具有一护颚部与一护颈部，该护颈部自该护颚部的后端一体地往后延伸，该护框外壳的护颈部的顶缘抵接于该帽体外壳的护颊部的底缘；以及
一发泡体，该发泡体设于该帽体外壳的内周面与该护框外壳的内周面，用以将该帽体外壳与该护框外壳结合在一起。
本发明所述的安全帽，该护框外壳由两相对的弧形框体对接而成，该两弧形框体的前端相互抵接而共同形成该护颚部，该两弧形框体的后端相互抵接而共同形成该护颈部。
本发明所述的安全帽，其中该护框外壳具有两相对的弧形框体与一端盖，该两弧形框体的前端抵接于该端盖，使该两弧形框体的前端与该端盖共同形成该护颚部，该两弧形框体的后端相互抵接而共同形成该护颈部。
本发明所述的安全帽，该护框外壳为一环形体。
本发明所述的安全帽，还包含有一骨架，该骨架设于该护框外壳的内侧且被该发泡体所包覆住。
本发明所述的安全帽，其中该骨架朝该护框外壳的一侧面具有多个锥部。
本发明所述的安全帽，该护框外壳具有多个镂空槽，该护框外壳的内周面在该等镂空槽以外的位置设有该发泡体。
本发明所述的安全帽，该帽体外壳具有多个镂空槽，该帽体外壳的内周面在该多个镂空槽以外的位置设有该发泡体。
本发明所述的安全帽，该帽体外壳具有一本体与一护边条，该本体具有该护头部与该两护颊部，该护边条接设于该本体的前缘。
本发明的有益效果：
该制备方法可以让帽体外壳和护框外壳达到轻量化及透气性的效果；该安全帽主要是利用该发泡材料膨胀熟化而成的一发泡体将该帽体外壳及该护框外壳结合在一起，借以消除彼此之间的间隙来达到提升结构强度的效果。
附图说明
图1为本发明第1实施例的制造方法的流程图。
图2为本发明第1实施例的安全帽的外观立体图。
图3为本发明第1实施例的安全帽的立体分解图。
图4为本发明第1实施例的制造方法的示意图，主要显示帽体外壳与护框外壳共同放置于模具内的状态。
图5为本发明第2实施例的安全帽的立体分解图。
图6为本发明第3实施例的安全帽的立体分解图。
图7为本发明第4实施例的安全帽的立体分解图。
图8为本发明第5实施例的安全帽的立体分解图。
图9为本发明第5实施例的制造方法的示意图，主要显示帽体外壳、护框外壳与骨架共同放置于模具内的状态。
图10为图9的局部放大图。
其中，附图标记：
「第1实施例」
10安全帽       12模具
20帽体外壳     21本体
22护头部       24护颊部
25护边条       26镂空槽
30护框外壳     31弧形框体
32端盖         34护颚部
36护颈部       38镂空槽
40发泡材料     42发泡体
「第2实施例」
28帽体外壳
「第3实施例」
50护框外壳     52弧形框体
54护颚部       56护颈部
「第4实施例」
60护框外壳     62护颚部
64护颈部
「第5实施例」
70骨架         72锥部
具体实施方式
请先参阅图1，本发明第1实施例的制造方法包含有下列几个步骤。
步骤a)：制备一帽体外壳20与一护框外壳30。在本实施例中，帽体外壳 20具有一本体21与一护边条25，如图3所示，本体21与护边条25均由真空成型技术所一体制成，本体21在结构方面具有一护头部22与两相对的护颊部24，两护颊部24自护头部22的左、右两端一体地往下延伸，护边条25接设于本体21的前缘；护框外壳30具有两相对的弧形框体31与一端盖32，如图3所示，弧形框体31与端盖32均由真空成型技术所一体制成，两弧形框体31的前端抵接于端盖32，使得两弧形框体32的前端与端盖共同形成一护颚部34，两弧形框体32的后端相互抵接而共同形成一护颈部36。
步骤b)：如图3所示，将帽体外壳20与护框外壳30共同置放于一模具12内，使帽体外壳20的护颊部24的底缘抵接于护框外壳30的护颈部36的顶缘。
步骤c)：如图3所示，注入一发泡材料40于模具12内，使发泡材料40布满帽体外壳20的整个内周面与护框外壳30的整个内周面，接着对发泡材料40进行加温加压，发泡材料40在膨胀熟成之后所形成的一发泡体42即可将帽体外壳20与护框外壳30结合在一起。在本实施例中，发泡材料40可以是EPS、EPP、EPO或EPE，在此不加以限定。
步骤d)：待完成发泡程序之后将模具12取下，如图2所示，借以获得一安全帽成品10。
在此需要补充说明的是，在步骤a)当中，帽体外壳20与护框外壳30在各自制备完成之后可以分别再进行加工，使帽体外壳20与护框外壳30分别具有多个镂空槽26、38，这些镂空槽26、38可以提供轻量化与透气性的效果，至于在步骤c)中所注入的发泡材料40会根据模具12的结构设计而分布在镂空槽26、38以外的位置，并不会将镂空槽26、38给遮蔽住。
为了进一步简化制程，在本发明第2实施例中，如图5所示，帽体外壳28是由真空成型技术所一体制成。另外在本发明第3实施例中，护框外壳50为两件式结构，如图6所示，护框外壳50具有两相对的弧形框体52，每一个弧形框体52是由真空成型技术所一体制成，两弧形框体52的前端相互抵接而共同形成护颚部54，两弧形框体52的后端相互抵接而共同形成护颈部56。此外，在本发明第4实施例中，护框外壳60是由真空成型技术所一体制成的环形体，如图7所示，一体式护框外壳60的护颚部62位于前半个弧形部分，一体式护框外壳60的护颈部64位于后半个弧形部分。
另一方面，在本发明第5实施例中，如图8及9所示，在步骤b)中将一骨架70跟着帽体外壳20与护框外壳30一起放置于模具12内，接着在步骤c)中所注入的发泡材料40在膨胀熟成之后除了将帽体外壳20与护框外壳30结合在一起之外，同时将骨架70给整个包覆住，如此即可通过骨架70提升整体结构的强度。另外如图9及10所示，骨架70朝护框外壳30的一侧面具有多个锥部72，这些锥部72一方面用来让骨架70跟护框外壳30之间保持适当的间隙，使发泡材料40能够顺利填满于骨架70与护框外壳30之间，另一方面可以增加骨架70跟发泡材料40之间的结合力量，使两者不轻易分离。
在此需要补充说明的是，护框外壳30在本实施例中是用前述第1实施例的三件式结构来辅助说明，然而实际上，护框外壳也可以使用前述第3实施例的两件式结构或前述第4实施例的一体式结构。此外，护框外壳30可以在护颚部34及/或护颈部36预留至少一个开槽，让骨架70局部显露在外，使整个成品呈现不同的造型风格。
综上所陈，本发明的制造方法让发泡材料40紧密地贴合于帽体外壳20的内周面与护框外壳30、50、60的内周面，并且让彼此之间的间隙能够减少到最低程度，如此可以大幅提升成品的结构强度。另外，由于发泡体42是均匀地分布在帽体外壳20的内周面与护框外壳30、50、60的内周面，所以发泡体42能够有效分散帽体外壳20或护框外壳30、50、60所受到的外力冲击，进而对使用者提供良好的保护效果。
当然，本发明还可有其他多种实施例，在不背离本发明精神及其实质的情况下，熟悉本领域的技术人员当可根据本发明作出各种相应的改变和变形，但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。

Claims (19)

  1. 一种安全帽的制造方法，其特征在于，包含有下列步骤：
    a)制备一帽体外壳与一护框外壳，该帽体外壳具有一护头部与两相对的护颊部，该两护颊部自该护头部的左、右两端一体地往下延伸，该护框外壳具有一护颚部与一护颈部，该护颈部自该护颚部的后端一体地往后延伸；
    b)将该帽体外壳与该护框外壳共同置放于一模具内，使该帽体外壳的护颊部的底缘抵接于该护框外壳的护颈部的顶缘；
    c)注入一发泡材料于该模具内，并对该发泡材料进行加温加压，使该发泡材料膨胀结合于该帽体外壳的内周面与该护框外壳的内周面；以及
    d)待完成发泡程序之后将该模具取下，借以获得一安全帽成品。
  2. 根据权利要求1所述的制造方法，其特征在于，在步骤a)，先由真空成型技术制备出两个弧形框体，再将该两弧形框体相互对接而形成该护框外壳。
  3. 根据权利要求1所述的制造方法，其特征在于，在步骤a)，该护框外壳是由真空成型技术所一体制成。
  4. 根据权利要求1所述的制造方法，其特征在于，在步骤a)，先由真空成型技术制备出两个弧形框体及一个端盖，再将该端盖抵接于该两弧形框体的前端，并将该两弧形框体的后端相互对接，使该两弧形框体与该端盖共同形成该护框外壳。
  5. 根据权利要求1所述的制造方法，其特征在于，在步骤a)，该帽体外壳具有多个镂空槽。
  6. 根据权利要求1所述的制造方法，其特征在于，在步骤a)，该护框外壳具有多个镂空槽。
  7. 根据权利要求1所述的制造方法，其特征在于，在步骤a)，该帽体外壳是由真空成型技术所一体制成。
  8. 根据权利要求1所述的制造方法，其特征在于，在步骤a)，先由真空成型技术制备出一本体与一护边条，再将该护边条接设于该本体的前缘而形成该帽体外壳。
  9. 根据权利要求1所述的制造方法，其特征在于，在步骤b)，将一骨架连同该帽体外壳与该护框外壳共同置放于该模具内，使该骨架位于该护框外壳的内侧；在步骤c)中，该骨架被该发泡材料所包覆住。
  10. 根据权利要求9所述的制造方法，其特征在于，该骨架朝该护框外壳的一侧面具有多个锥部。
  11. 一种根据权利要求1所述的制造方法所制成的安全帽，其特征在于，包含有：
    一帽体外壳，该帽体外壳具有一护头部与两相对的护颊部，该两护颊部自该护头部的左、右两端一体地往下延伸；
    一护框外壳，该护框外壳具有一护颚部与一护颈部，该护颈部自该护颚部的后端一体地往后延伸，该护框外壳的护颈部的顶缘抵接于该帽体外壳的护颊部的底缘；以及
    一发泡体，该发泡体设于该帽体外壳的内周面与该护框外壳的内周面，用以将该帽体外壳与该护框外壳结合在一起。
  12. 根据权利要求11所述的安全帽，其特征在于，该护框外壳由两相对的弧形框体对接而成，该两弧形框体的前端相互抵接而共同形成该护颚部，该两弧形框体的后端相互抵接而共同形成该护颈部。
  13. 根据权利要求11所述的安全帽，其特征在于，该护框外壳具有两相对的弧形框体与一端盖，该两弧形框体的前端抵接于该端盖，使该两弧形框体的前端与该端盖共同形成该护颚部，该两弧形框体的后端相互抵接而共同形成该护颈部。
  14. 根据权利要求11所述的安全帽，其特征在于，该护框外壳为一环形体。
  15. 根据权利要求11至14中任一项所述的安全帽，其特征在于，还包含有一骨架，该骨架设于该护框外壳的内侧且被该发泡体所包覆住。
  16. 根据权利要求15所述的安全帽，其特征在于，该骨架朝该护框外壳的一侧面具有多个锥部。
  17. 根据权利要求11至14中任一项所述的安全帽，其特征在于，该护框外壳具有多个镂空槽，该护框外壳的内周面在该等镂空槽以外的位置设有该发泡体。
  18. 根据权利要求11所述的安全帽，其特征在于，该帽体外壳具有多个镂空槽，该帽体外壳的内周面在该多个镂空槽以外的位置设有该发泡体。
  19. 根据权利要求11所述的安全帽，其特征在于，该帽体外壳具有一本 体与一护边条，该本体具有该护头部与该两护颊部，该护边条接设于该本体的前缘。
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US20190191810A1 (en) 2019-06-27
EP3733010A1 (en) 2020-11-04
US20210145106A1 (en) 2021-05-20
TWI680853B (zh) 2020-01-01
US11350687B2 (en) 2022-06-07
TW201927512A (zh) 2019-07-16
EP3733010B1 (en) 2023-02-01
CN111065289B (zh) 2023-01-17
CN111065289A (zh) 2020-04-24

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