JP2003269900A - Shield for protection - Google Patents
Shield for protectionInfo
- Publication number
- JP2003269900A JP2003269900A JP2002074356A JP2002074356A JP2003269900A JP 2003269900 A JP2003269900 A JP 2003269900A JP 2002074356 A JP2002074356 A JP 2002074356A JP 2002074356 A JP2002074356 A JP 2002074356A JP 2003269900 A JP2003269900 A JP 2003269900A
- Authority
- JP
- Japan
- Prior art keywords
- shield
- protective shield
- woven fabric
- resistance
- polyethylene
- 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.)
- Pending
Links
- 239000005011 phenolic resin Substances 0.000 claims abstract description 22
- 239000004698 Polyethylene Substances 0.000 claims abstract description 18
- -1 polyethylene Polymers 0.000 claims abstract description 17
- 229920000573 polyethylene Polymers 0.000 claims abstract description 17
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 16
- 239000002759 woven fabric Substances 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims description 28
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract description 9
- 229920001568 phenolic resin Polymers 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 239000002131 composite material Substances 0.000 description 9
- 239000004760 aramid Substances 0.000 description 6
- 230000014759 maintenance of location Effects 0.000 description 6
- 229920003235 aromatic polyamide Polymers 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229910000737 Duralumin Inorganic materials 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011180 sandwich-structured composite Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/06—Shields
- F41H5/08—Shields for personal use, i.e. hand held shields
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H5/00—Armour; Armour plates
- F41H5/02—Plate construction
- F41H5/04—Plate construction composed of more than one layer
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、防護用盾に関す
る。TECHNICAL FIELD The present invention relates to a protective shield.
【０００２】[0002]
【従来の技術】防護用盾には耐弾性に加えて、使用状況
に応じて機動性が必要で、軽くて持ちやすく、水上での
使用時に水面に落下した場合でも水面に浮き回収が容易
であることなども要求されることがある。一般的に、防
護用盾にはアルミなどの金属製、アラミド繊維織布を基
材にしたＦＲＰなどが使用されているが、アルミなどの
金属製は密度が大きいため水中に埋没し、外観上も錆び
るなどの不具合がある。一方、ＦＲＰ製は金属よりも軽
量であるが水中落下した場合は水中に埋没してしまい、
回収は困難である。ＦＲＰ製で水面に浮く素材は、高強
度ＰＥ繊維を０°、９０°に重ね熱可塑性樹脂で一体化
した積層体が適しているが、銃弾が衝突した位置の裏面
の膨れ、耐切創性、耐熱保形性、耐候性などで実用上不
具合を生じている。2. Description of the Related Art In addition to being elastic, a protective shield must be maneuverable according to the usage situation, and it is light and easy to hold, and even if it falls on the water surface when it is used on the water, it floats on the water surface and can be easily collected. Some things may be required. Generally, a metal such as aluminum or FRP based on aramid fiber woven fabric is used as a protective shield, but metal such as aluminum is buried in water due to its high density, resulting in a poor appearance. There are also problems such as rusting. On the other hand, FRP is lighter than metal, but if it falls in water, it will be buried in water,
Recovery is difficult. As a material made of FRP and floating on the water surface, a laminated body in which high-strength PE fibers are laminated at 0 ° and 90 ° and integrated with a thermoplastic resin is suitable, but swelling on the back surface at the position where the bullet collides, cut resistance, Practical problems such as heat-resistant shape retention and weather resistance have occurred.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、耐弾
性、耐切創性、耐熱保形性、耐候性などに優れ、かつ水
面に浮くことのできる防護用盾を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a protective shield which is excellent in elasticity resistance, cut resistance, heat shape retention, weather resistance and the like and which can float on the water surface.
【０００４】[0004]
【課題を解決するための手段】このような目的は、下記
（１）〜（３）記載の本発明により達成される。
（１）ポリエチレンシールドで構成される第１の部材の
両面に、アラミド繊維織布とフェノール樹脂で構成され
る第２の部材を設けてなることを特徴とする防護用盾。
（２）前記フェノール樹脂がフェノール樹脂フィルムで
ある上記（１）に記載の防護用盾。
（３）前記フェノール樹脂の樹脂量は、前記アラミド繊
維織布に対して５〜１３重量％である上記（１）または
（２）に記載の防護用盾。These objects are achieved by the present invention described in (1) to (3) below. (1) A protective shield comprising a first member composed of a polyethylene shield and a second member composed of an aramid fiber woven fabric and a phenol resin provided on both surfaces thereof. (2) The protective shield according to (1) above, wherein the phenol resin is a phenol resin film. (3) The protective shield according to (1) or (2) above, wherein the amount of the phenol resin is 5 to 13% by weight based on the aramid fiber woven fabric.
【０００５】[0005]
【発明の実施の形態】以下、本発明の防護用盾について
詳細に説明する。本発明の防護用盾は、ポリエチレンシ
ールドで構成される第１の部材の両面に、アラミド繊維
織布とフェノール系樹脂で構成される第２の部材を設け
てなることを特徴とするものである。BEST MODE FOR CARRYING OUT THE INVENTION The protective shield of the present invention will be described in detail below. The protective shield of the present invention is characterized in that a second member composed of an aramid fiber woven fabric and a phenolic resin is provided on both surfaces of a first member composed of a polyethylene shield. .
【０００６】本発明の防護用盾は、ポリエチレンシール
ドで構成される第１の部材を用いる。これにより、防護
用盾の軽量化を図ることができる。すなわち、水中に落
下しても容易に水面に浮くことができる防護用盾を得る
ことができる。前記ポリエチレンシールドとは、例え
ば、ポリエチレン繊維を１０〜１００倍に冷延伸したも
のを平面状に一方向に揃え、これに、別の冷延伸したポ
リエチレン繊維を前記の繊維方向と９０°をなす角度で
一方向に揃えて重ね合わせたものを低分子量ポリエチレ
ンやポリイソプレン等の結合剤で固着しシートにしたも
のであり、さらには、このシートを複数枚組み合わせで
一体化したものである。そして、このシールドを必要と
する耐弾性能が得られる枚数を積層し、加熱圧縮して積
層成形体とするものである。The protective shield of the present invention uses a first member composed of a polyethylene shield. As a result, the weight of the protective shield can be reduced. That is, it is possible to obtain a protective shield that can be easily floated on the water surface even if it falls into water. The polyethylene shield is, for example, a polyethylene fiber cold-drawn 10 to 100 times aligned in a plane in one direction, and another cold-drawn polyethylene fiber has an angle of 90 ° with the fiber direction. The sheet is prepared by aligning and stacking in one direction with a binder such as low molecular weight polyethylene or polyisoprene to form a sheet, and further, a plurality of sheets are combined and integrated. Then, a number of sheets required to obtain the ballistic resistance required for this shield are laminated, and heat compression is performed to obtain a laminated molded body.
【０００７】本発明の防護用盾は、前記ポリエチレンシ
ールドからなる第１の部材の両面に、アラミド繊維織布
とフェノール樹脂で構成される第２の部材を積層したサ
ンドイッチ構造の複合積層体からになる。これにより、
耐弾性、耐切創性、耐熱保形性および耐候性を向上する
ことができる。すなわち、芯材となる第１の部材で、軽
量化を図り、第１の部材における耐熱性が小さい、傷が
つき易い、塗装しにくいといった欠点を第２の部材で改
善したものである。The protective shield of the present invention comprises a composite laminate having a sandwich structure in which a aramid fiber woven fabric and a second member made of a phenol resin are laminated on both surfaces of the first member made of the polyethylene shield. Become. This allows
It is possible to improve elasticity resistance, cut resistance, heat-resistant shape retention and weather resistance. That is, the first member, which is the core member, is lightened, and the second member has improved the drawbacks of the first member such as low heat resistance, easy scratching, and difficult coating.
【０００８】前記アラミド繊維織布の織り構成は、特に
限定されないが平織りが好ましい。これにより、積層成
形品としての強度を特に均一にすることができる。織布
を構成している糸の形態は、例えばモノフィラメントを
引き揃えたロービング状のもの、撚りの掛かった通常の
糸等が挙げられる。これらのなかでも、耐弾性能に優れ
たロービング状の糸が好ましい。The woven structure of the aramid fiber woven fabric is not particularly limited, but a plain weave is preferable. As a result, the strength of the laminated molded product can be made particularly uniform. Examples of the form of the threads constituting the woven cloth include a roving-like thread in which monofilaments are aligned and a normal thread having a twist. Among these, roving-like yarns having excellent ballistic resistance are preferable.
【０００９】前記フェノール樹脂の樹脂量は、特に限定
されないが、前記アラミド繊維織布に対して５〜１３重
量％が好ましく、特に８〜１２重量％が好ましい。樹脂
量が前記下限値未満では表面の平滑性が不足して塗装し
ても外観が悪い。一方、前記上限値を越えると成形時の
圧力により、金型のパーティング面から樹脂が流れ出
し、バリが多く仕上げ工数が増大する場合がある。ま
た、耐弾性の低下することがある。前記フェノール樹脂
は、フェノール樹脂フィルムであることが好ましい。こ
れによりアラミド繊維織布とフェノール樹脂からなる第
２層部材の形成が容易となり、本発明の複合積層成形体
への成形性が向上する。また、フェノール樹脂はポリビ
ニルブチラール変性フェノール樹脂であることが好まし
い。これにより、フェノール樹脂が可撓性となり、フェ
ノール樹脂のフィルム化が容易となる。The amount of the phenolic resin is not particularly limited, but is preferably 5 to 13% by weight, particularly preferably 8 to 12% by weight based on the aramid fiber woven fabric. When the amount of the resin is less than the lower limit, the smoothness of the surface is insufficient and the appearance is poor even after coating. On the other hand, if the upper limit is exceeded, the resin may flow out from the parting surface of the mold due to the pressure during molding, resulting in many burrs and an increase in the number of finishing steps. In addition, the elasticity resistance may decrease. The phenol resin is preferably a phenol resin film. This facilitates the formation of the second layer member composed of the aramid fiber woven fabric and the phenol resin, and improves the moldability of the composite laminated body of the present invention. Further, the phenol resin is preferably a polyvinyl butyral modified phenol resin. This makes the phenolic resin flexible and facilitates forming the phenolic resin film.
【００１０】以下、本発明の防護用盾について、図面を
用いて詳細に説明する。図１は、アラミド繊維織布１に
フェノール樹脂フィルム２を重ねた積層体からなる第２
の部材１１の側断面図である。図２は、ポリエチレンシ
ールドからなる第１の部材３の両面に前記第２の部材１
１を積層したサンドイッチ構造の複合積層体１２の一例
を示す側断面図である。第１の部材と第２の部材１１と
は、エポキシ樹脂等の接着剤４を介して積層される。図
３は、本発明の防護用盾の一例を示す図で、（ａ）は正
面図、（ｂ）は（ａ）のＡ−Ａ断面図である。防護用盾
１３は、図２に示すサンドイッチ構造の複合積層体１２
を加熱加圧して得られ、覗き窓５を有している。Hereinafter, the protective shield of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a second aramid fiber woven fabric 1 and a laminated body in which a phenolic resin film 2 is laminated.
It is a sectional side view of the member 11 of FIG. FIG. 2 shows that the second member 1 is formed on both sides of the first member 3 made of polyethylene shield.
1 is a side sectional view showing an example of a composite laminate 12 having a sandwich structure in which 1 is laminated. The first member and the second member 11 are laminated via an adhesive 4 such as an epoxy resin. 3A and 3B are views showing an example of the protective shield of the present invention, where FIG. 3A is a front view and FIG. 3B is a sectional view taken along line AA of FIG. The protective shield 13 is a composite laminate 12 having a sandwich structure shown in FIG.
It is obtained by heating and pressurizing and has a viewing window 5.
【００１１】[0011]
【実施例】以下、本発明の防護用盾について、実施例を
用いて詳細に説明するが、本発明はこれに限定されるも
のではない。EXAMPLES The protective shield of the present invention will be described in detail below with reference to examples, but the present invention is not limited thereto.
【００１２】（実施例）
第２層部材の製造
下記の特性を有するアラミド繊維で構成される織布の片
面に、５０％ポリビニルブチラール変性フェノール樹脂
フィルムを樹脂の量が織布に対して１２重量％に相当す
るよう重ね１８０℃の熱ロールで一体化し、複合積層体
の外層を構成するアラミド積層体（第２の部材）を作成
した。
（アラミド繊維織布の特性）
・糸 モノフィラメント径 １２ μｍ
繊度 １６００ dtex
・織布 糸密度 ２５ 本／25.4ｍｍ
面密度 ４１５ ｇ／ｍ2
構成 平織り(Example) Production of Second Layer Member A woven fabric composed of aramid fibers having the following characteristics was coated with a 50% polyvinyl butyral modified phenolic resin film on one side thereof in an amount of 12% by weight of the woven fabric. % To form an aramid laminate (second member) that constitutes an outer layer of the composite laminate by integrating them with a heat roll at 180 ° C. (Characteristics of aramid fiber woven cloth) ・ Yarn Monofilament diameter 12 µm Fineness 1600 dtex ・ Woven cloth Thread density 25 threads / 25.4mm Area density 415 g / m 2 Composition Plain weave
【００１３】複合積層体の製造
第１の部材としてポリエチレンシールドを所望の防弾性
能が得られる面密度８ｋｇ／ｍ2になるよう、必要な枚
数を重ねた。その両面に上述のアラミド積層体を配置し
てサンドイッチ構造の複合積層体とした。アラミド積層
体のアラミド繊維織布と、ポリエチレンシールドとの接
合面にはエポキシ樹脂系接着剤を使用した。
（ポリエチレンシールドの特性）
・面密度 ２５０ｇ／ｍ2
・密度 ０．９６５Manufacture of Composite Laminate A number of polyethylene shields were stacked as the first member so that the surface density was 8 kg / m 2 at which desired bulletproof performance was obtained. The above-mentioned aramid laminate was arranged on both sides thereof to form a sandwich-structured composite laminate. An epoxy resin adhesive was used on the joint surface between the aramid fiber woven fabric of the aramid laminate and the polyethylene shield. (Characteristics of polyethylene shield) ・ Area density 250 g / m 2・ Density 0.965
【００１４】防護用盾の製造
得られた複合積層体を１２５℃の熱プレスで３ＭＰＡの
圧力にて、３０分間加熱加圧した後、室温まで冷却し防
護用盾を得た。Manufacture of Protective Shield The obtained composite laminate was heated and pressed at a pressure of 3 MPa at 125 ° C. for 30 minutes and then cooled to room temperature to obtain a protective shield.
【００１５】（比較例１）ポリエチレンシールドを用い
ずに同一面密度のアラミド積層体（第２の部材）のみを
使用した以外は、実施例１と同様にした。Comparative Example 1 The procedure of Example 1 was repeated, except that the polyethylene shield was not used and only the aramid laminate having the same areal density (second member) was used.
【００１６】（比較例２）アラミド積層体を用いずにポ
リエチレンシールド（第１の部材）のみを使用した以外
は、実施例１と同様にした。(Comparative Example 2) The procedure of Example 1 was repeated except that only the polyethylene shield (first member) was used without using the aramid laminate.
【００１７】（比較例３）金属製（ジュラルミン製）の
防護用盾をそのまま用いた。(Comparative Example 3) A protective shield made of metal (made of duralumin) was used as it was.
【００１８】実施例および比較例で得られた防護用盾に
ついて、以下の評価を行った。評価項目を内容と共に以
下に示す。得られた結果を表１に示す。
塗装密着性
密着強度は、ＪＩＳ Ｋ ６３２８に準じて測定した。
◎：剥離なし。
○：若干剥離が見受けられるが、実用可能範囲。
△：剥離が大きく、実用不可。
×：全面的に剥離有り。The protective shields obtained in Examples and Comparative Examples were evaluated as follows. The evaluation items and their contents are shown below. The results obtained are shown in Table 1. Coating adhesion The adhesion strength was measured according to JIS K 6328. ⊚: No peeling. ◯: Peeling is slightly observed, but it is within a practical range. Δ: Peeling is large and practically impossible. X: There is peeling on the entire surface.
【００１９】耐熱保形性
室温雰囲気下で、１０ｋｇの荷重下でたわみの程度を比
較した。
◎：たわみほとんど無し。
○：たわみ若干有るが、実用可能レベル。
△：たわみが若干有り、実用不可。
×：たわみ有り。Heat-Resistant Shape Retention In a room temperature atmosphere, the degree of deflection was compared under a load of 10 kg. ◎: Almost no deflection. ◯: There is some deflection, but it is at a practical level. Δ: There is some deflection, which is not practical. X: Deflection is present.
【００２０】耐切創性 ＨＢの濃さの鉛筆で比較した。 ◎：傷無し。 ○：僅かに痕が残るが、実用可能範囲。 △：へこみがあり、実用不可。 ×：大きなへこみ有り。Cut resistance The comparison was made with a pencil of HB density. A: No scratches. ◯: Practical range with slight marks left. Δ: There is a dent and it is not practical. X: There is a large dent.
【００２１】耐弾試験時の裏面の膨らみ
耐弾試験は、模擬破片弾を使用した小口径発射装置によ
るＶ５０で評価し、この時の停弾した位置の裏面の膨ら
み量を比較評価した。
◎：膨らみは僅かである。
○：膨らみはあるが、実用可能範囲。
△：膨らみあり、実用不可。
×：大きな膨らみ有り。The bulging of the back surface during the ballistic resistance test was evaluated by V50 by a small diameter launching device using a simulated fragment bullet, and the bulging amount of the back surface at the stopped position at this time was compared and evaluated. ⊚: Swelling is slight. ◯: There is a bulge, but it is within a practical range. Δ: Swelling, not practical X: There is a large bulge.
【００２２】水中への落下後の挙動
各積層構成の盾を水中に落下させ、盾の浮沈状態を観察
した。
○水面に浮く。
×水中に沈下する。Behavior after Falling into Water The shield of each laminated structure was dropped into water and the floating state of the shield was observed. ○ Float on the surface of the water. × Submerge in water.
【００２３】[0023]
【表１】 [Table 1]
【００２４】表から明らかなように、実施例は、塗装密
着性、耐熱保形性、耐切削性、耐弾性に優れ、かつ防護
用盾の重量の軽くなっていた。As is apparent from the table, in the examples, the coating adhesion, the heat-resistant shape retention, the cutting resistance and the elasticity were excellent, and the weight of the protective shield was light.
【００２５】[0025]
【発明の効果】本発明によれば、耐弾性に優れ、耐切創
性、耐熱保形性、耐候性などに優れ、かつ水面に浮くこ
とのできる軽量化防護用盾を得ることができる。According to the present invention, it is possible to obtain a lightweight protective shield which is excellent in elasticity resistance, cut resistance, heat-resistant shape retention, weather resistance and the like, and which can float on the water surface.
【００２６】[0026]
【図１】 本発明における第２部材の一例を示す側断面
図である。FIG. 1 is a side sectional view showing an example of a second member of the present invention.
【図２】 本発明における第１の部材と第２の部材との
複合積層体の一例を示す側断面図である。FIG. 2 is a side sectional view showing an example of a composite laminated body of a first member and a second member according to the present invention.
【図３】 本発明における防護用盾を示し、（ａ）は正
面図、（ｂ）は（ａ）のＡ−Ａ断面図である。FIG. 3 shows a protective shield according to the present invention, (a) is a front view, and (b) is a sectional view taken along line AA of (a).
１ アラミド繊維織布 ２ フェノール樹脂フィルム ３ ポリエチレンシールド（第１の部材） ４ 接着剤層 ５ 覗き窓 １１ 第２の部材 １２ 複合積層体 １３ 防護用盾 1 aramid fiber woven fabric 2 Phenolic resin film 3 Polyethylene shield (first member) 4 Adhesive layer 5 Viewing window 11 Second member 12 Composite laminate 13 Protective shield
Claims (3)
の部材の両面に、アラミド繊維織布とフェノール樹脂で
構成される第２の部材を設けてなることを特徴とする防
護用盾。1. A first structure comprising a polyethylene shield
A protective shield comprising a second member composed of an aramid fiber woven fabric and a phenol resin provided on both surfaces of the member.
ィルムである請求項１に記載の防護用盾。2. The protective shield according to claim 1, wherein the phenol resin is a phenol resin film.
ラミド繊維織布に対して５〜１３重量％である請求項１
または２に記載の防護用盾。3. The resin amount of the phenol resin is 5 to 13% by weight with respect to the aramid fiber woven fabric.
Or the protective shield described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002074356A JP2003269900A (en) | 2002-03-18 | 2002-03-18 | Shield for protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002074356A JP2003269900A (en) | 2002-03-18 | 2002-03-18 | Shield for protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003269900A true JP2003269900A (en) | 2003-09-25 |
Family
ID=29203777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002074356A Pending JP2003269900A (en) | 2002-03-18 | 2002-03-18 | Shield for protection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003269900A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061821A (en) * | 2014-07-04 | 2014-09-24 | 苏州工业园区职业技术学院 | Amphibious attacking shield |
| US20190390941A1 (en) * | 2018-06-26 | 2019-12-26 | Tyr Tactical, Llc | Shield system |
-
2002
- 2002-03-18 JP JP2002074356A patent/JP2003269900A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061821A (en) * | 2014-07-04 | 2014-09-24 | 苏州工业园区职业技术学院 | Amphibious attacking shield |
| US20190390941A1 (en) * | 2018-06-26 | 2019-12-26 | Tyr Tactical, Llc | Shield system |
| US12516913B2 (en) * | 2018-06-26 | 2026-01-06 | Tyr Tactical, Llc | Shield system |
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