JPS6310360B2 - - Google Patents
Info
- Publication number
- JPS6310360B2 JPS6310360B2 JP16382583A JP16382583A JPS6310360B2 JP S6310360 B2 JPS6310360 B2 JP S6310360B2 JP 16382583 A JP16382583 A JP 16382583A JP 16382583 A JP16382583 A JP 16382583A JP S6310360 B2 JPS6310360 B2 JP S6310360B2
- Authority
- JP
- Japan
- Prior art keywords
- gun
- cap
- insert
- hardness
- barrel
- 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
Links
- 238000005266 casting Methods 0.000 claims description 7
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229910001234 light alloy Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 239000000155 melt Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241000226585 Antennaria plantaginifolia Species 0.000 description 1
- 238000007550 Rockwell hardness test Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
【発明の詳細な説明】 本発明はモデルガンの構造に関する。[Detailed description of the invention] The present invention relates to the structure of a model gun.
現在モデルガンを製造する場合は、改造銃を防
止するため、銃砲刀剣類取締法により、各種銃の
銃身は棒状にして該銃身の基部に一定の形状を有
するインサートを鋳造時に埋設しなければならな
い様義務付けられている。 Currently, when manufacturing model guns, in order to prevent modified guns, the barrel of each type of gun must be made into a rod and an insert of a certain shape must be embedded in the base of the barrel at the time of casting, according to the Firearms and Swords Control Law. It is mandatory.
しかし該インサートは第１図に示す様に構成さ
れ、銃身基部ａに鋳込んだインサートｂはｃの部
分がロツクウエル硬さ試験方法（日本工業規格
Z2245）により測定した硬さがHRC60以上の鋼材
であり、ｄの部分が超硬合金（日本工業規格
5501）であり銃身の外径に対し一定の大きさが規
定されているが、硬度の高い鋼材に成ると、材料
コストが高揚するため、できるだけ規定硬度に近
いインサートａの材料を用いる必要があるが、鋳
造成形する際その鋳造温度（400〜450℃）によつ
て焼きもどりが生じ上記インサートａの硬度が６
度位低下し、規定の硬度を維持することが不可能
である。 However, the insert is constructed as shown in Fig. 1, and the part c of the insert b cast into the barrel base a is based on the Rockwell hardness test method (Japanese Industrial Standards).
Z2245) is a steel material with a hardness of HRC60 or higher, and the d part is a cemented carbide (Japanese Industrial Standards).
5501), and a certain size is specified for the outside diameter of the gun barrel, but if the material is made of hard steel, the material cost will increase, so it is necessary to use an insert material with a hardness as close to the specified hardness as possible. However, during casting, tempering occurs due to the casting temperature (400 to 450°C), and the hardness of the insert a is 6.
The degree of hardness decreases and it is impossible to maintain the specified hardness.
本発明は上記点に鑑み、モデルガンの製造にあ
たつてインサートに鋳造熱の影響による硬度低下
を生ぜしめないモデルガンを提供することを目的
とするもので、本発明によればインサートの硬度
が低下しないため、規定硬度のインサートを銃身
の基部に鋳込めば良いものである。 In view of the above points, an object of the present invention is to provide a model gun that does not cause a decrease in hardness of the insert due to the influence of casting heat when manufacturing the model gun.According to the present invention, the hardness of the insert Since the hardness does not decrease, it is sufficient to cast an insert of specified hardness into the base of the barrel.
今、本発明の一実施例を図面に従つて説明する
に、第２図、第３図はモデルガン要部の断面図、
第４図は埋設部材の斜視図である。 Now, one embodiment of the present invention will be described with reference to the drawings. FIGS. 2 and 3 are cross-sectional views of the main parts of the model gun;
FIG. 4 is a perspective view of the buried member.
通常亜鉛合金で鋳造一体成型される銃本体１の
銃身２に相当する基部２ａの軸心に規定硬度
（HRC60）以上の鋼製インサート３を嵌着した亜
鉛合金製のキヤツプ４を嵌合し、同時成型するも
ので、上記キヤツプ４は適宜厚さを有する外周壁
５と底壁６を有し、口部外周が段部と成り薄肉部
７が構成される。 A cap 4 made of zinc alloy with a steel insert 3 of a specified hardness (HRC60) or more fitted is fitted to the axis of the base 2a corresponding to the barrel 2 of the gun body 1, which is usually integrally cast with zinc alloy. The cap 4 is molded simultaneously, and has an outer peripheral wall 5 and a bottom wall 6 having an appropriate thickness, and the outer periphery of the mouth part forms a stepped part and a thin part 7 is formed.
中心に穿設した嵌合孔８に圧入嵌合するインサ
ート３は円柱状または係合段部を有する糸巻状に
構成され、特に必要ならば係合段部を有するイン
サート３の場合はキヤツプ４の外周から絞り込
み、段部に外周壁５の一部を嵌合し、完全に一体
化する。 The insert 3 that is press-fitted into the fitting hole 8 drilled in the center has a cylindrical shape or a pincushion shape with an engaging step. It is narrowed down from the outer periphery, and a part of the outer peripheral wall 5 is fitted into the stepped portion to be completely integrated.
上述の如くキヤツプ４に嵌合され一体化したイ
ンサート３は通常異物体を同時鋳込み鋳造する如
く、鋳型（図示せず）の所定位置にセツトし、該
鋳型に溶解した亜鉛合金の湯を流し込み、固化
後、鋳型から抜出し、種々形状のモデルガンを得
るものである。 The insert 3 fitted and integrated into the cap 4 as described above is set in a predetermined position in a mold (not shown), as in the case of simultaneous casting of foreign objects, and molten zinc alloy is poured into the mold. After solidification, it is extracted from the mold to obtain model guns of various shapes.
こうして製造されたモデルガンは第２図、第３
図の如き要部断面を有するが、キヤツプ４が銃本
体１と同質材料である亜鉛合金で構成されている
ため、鋳造の際キヤツプ４の外側表面近傍は溶解
して第６図に示す如く、完全に一体化してしまい
特に薄肉部７は溶け込んでしまう。 The model gun manufactured in this way is shown in Figures 2 and 3.
Although the main part has a cross section as shown in the figure, since the cap 4 is made of zinc alloy, which is the same material as the gun body 1, the vicinity of the outer surface of the cap 4 melts during casting, as shown in Fig. 6. They are completely integrated and the thin walled portion 7 in particular melts away.
しかしこの様なキヤツプ４の溶解はインサート
３迄には及ばず、湯熱（400〜450℃）が直接イン
サート３に影響しないため、インサート３が焼き
もどされることがなく、従つて初期の硬度を保持
することができるものである。 However, such melting of the cap 4 does not extend to the insert 3, and the hot water (400-450℃) does not directly affect the insert 3, so the insert 3 is not tempered and its initial hardness is reduced. It is something that can be kept.
したがつて、本発明の構成に依ればモデルガン
の銃身基部の所定位置に所定硬度のインサートを
確実に埋設することが出来るので容易に改造する
ことができなく成り、また本発明に依ればインサ
ートの硬度を規定限度にて使用することができる
ため材料費を低廉化し、生産コストを引下げるこ
とが出来る等本発明のモデル頑具製造業界に及ぼ
す影響は甚だ大である。 Therefore, according to the structure of the present invention, an insert of a predetermined hardness can be reliably buried in a predetermined position of the barrel base of a model gun, so that it is not possible to easily modify the model gun. For example, since the hardness of the insert can be used within a specified limit, material costs can be reduced and production costs can be reduced, and the influence of the present invention on the model tool manufacturing industry is enormous.
図面は本発明の一実施例を示すもので、第１図
はモデルガン製造規則に基付く要部断面図、第２
図は本発明製法に基く要部の構成を示す正断面
図、第３図は第２図におけるＡ−Ａ線断面図、第
４図はキヤツプおよびインサートの斜視図、第５
図は他の実施例を示すキヤツプおよびインサート
の正断面図、第６図は成型後の完成時の構成を示
す第２図と同じ断面図である。
１〜銃本体、２〜銃身、３〜ｂインサート、４
〜キヤツプ、７〜薄肉部、８〜嵌合孔。
The drawings show one embodiment of the present invention, and FIG. 1 is a sectional view of the main part based on the model gun manufacturing rules, and FIG.
The figure is a front cross-sectional view showing the structure of the main part based on the manufacturing method of the present invention, Figure 3 is a cross-sectional view taken along the line A-A in Figure 2, Figure 4 is a perspective view of the cap and insert, and Figure 5
The figure is a front sectional view of a cap and insert showing another embodiment, and FIG. 6 is the same sectional view as FIG. 2 showing the completed structure after molding. 1-gun body, 2-barrel, 3-b insert, 4
~cap, 7~thin wall part, 8~fitting hole.
Claims (1)
鉛合金で鋳造一体化される銃本体の銃身に相当す
る基部２ａの軸心に、規定硬度（HRC60）以上
の鋼製インサート３を嵌着した亜鉛合金製の有底
筒状キヤツプ４を一体的に鋳造埋設するように
し、且つ上記銃身本体の鋳造熱によつて、該キヤ
ツプ４の外面の一部が溶解し銃身本体と溶合して
一体化されることを特徴とするモデルガン。 ２ 前記有底筒状キヤツプ４は適宜厚さを有する
外周壁５と底壁６を有し、且つ口部外周が段部と
成り、薄肉部７が構成されている特許請求の範囲
第１項記載のモデルガン。[Scope of Claims] 1. In a model gun made of a cast light alloy, a steel insert with a specified hardness (HRC60) or higher is placed at the axis of the base 2a corresponding to the barrel of the gun body, which is integrally cast with a zinc alloy. A bottomed cylindrical cap 4 made of zinc alloy into which the cap 3 is fitted is integrally cast and buried, and a part of the outer surface of the cap 4 is melted by the heat of casting the gun barrel body, and is separated from the barrel body. A model gun that is characterized by being fused and integrated. 2. The bottomed cylindrical cap 4 has an outer circumferential wall 5 and a bottom wall 6 having an appropriate thickness, and the outer periphery of the mouth portion is a stepped portion, and a thin wall portion 7 is formed. Model gun listed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16382583A JPS5973171A (en) | 1983-09-05 | 1983-09-05 | Model gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16382583A JPS5973171A (en) | 1983-09-05 | 1983-09-05 | Model gun |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14671077A Division JPS5938519B2 (en) | 1977-12-06 | 1977-12-06 | Model gun manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5973171A JPS5973171A (en) | 1984-04-25 |
| JPS6310360B2 true JPS6310360B2 (en) | 1988-03-05 |
Family
ID=15781448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16382583A Granted JPS5973171A (en) | 1983-09-05 | 1983-09-05 | Model gun |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5973171A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0318469U (en) * | 1989-06-29 | 1991-02-22 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07126738A (en) * | 1993-10-29 | 1995-05-16 | Rozai Kogyo Kaisha Ltd | heating furnace |
-
1983
- 1983-09-05 JP JP16382583A patent/JPS5973171A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0318469U (en) * | 1989-06-29 | 1991-02-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5973171A (en) | 1984-04-25 |
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