JPS5941120B2 - model gun - Google Patents

Description

【発明の詳細な説明】 本発明は改造す防止することのできるモデルガンに関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a model gun that can be prevented from being modified.

従来のモデルガンは第１図に示すように、銃身１の軸心
方向と同方向の軸心となるように、先端部２ａが円錐に
形成され、略中央部２ｂが小径に形成された鋼鉄製の改
造防止部材２を銃身１に内装していた。As shown in FIG. 1, a conventional model gun is made of steel with a tip 2a formed into a conical shape and a substantially central portion 2b formed with a small diameter so that the axis is in the same direction as the axis of the gun barrel 1. A tamper-proofing member 2 made by Manufacturer Co., Ltd. was installed inside the gun barrel 1.

しかもこの改造防止部材２はダイカスト鋳造時に先端部
と後端部で支持するため、銃身１の先端部に凹部３がで
きる。Moreover, since the modification prevention member 2 is supported at the front end and the rear end during die casting, a recess 3 is formed at the front end of the gun barrel 1.

このため、商品価値を高めるには凹部３をかくす隠蔽板
４を設けなければならず、加工に手数を要するとともに
高価になる欠点がある。For this reason, in order to increase the commercial value, it is necessary to provide a concealing plate 4 that hides the recessed portion 3, which has the disadvantage of requiring a lot of processing time and being expensive.

また改造防止部材２と銃身１の軸心方向とが同方向であ
るため、手数をかければ、改造防止部材２を銃身１より
抜きとることができるという欠点がある。Furthermore, since the axial center of the modification prevention member 2 and the gun barrel 1 are in the same direction, there is a drawback that the modification prevention member 2 can be removed from the gun barrel 1 with some effort.

本発明は以上のような従来の欠点に鑑み、加工が容易で
、改造を確実に防止できるとともに、安価で商品価値の
高いモデルガンを得るにある。SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks of the conventional gun, the present invention aims to provide a model gun that is easy to process, can reliably prevent modification, is inexpensive, and has high commercial value.

以下、第２図および第３図に示す実施例により本発明の
詳細な説明する。Hereinafter, the present invention will be explained in detail with reference to the embodiments shown in FIGS. 2 and 3.

第２図および第３図の実施例において、１１はモデルガ
ン本体で、このモデルガン本体１１の銃身１２内には該
銃身１２の略全長にわたって中子１３が鋳込んである。In the embodiment shown in FIGS. 2 and 3, 11 is a model gun body, and a core 13 is cast into a barrel 12 of the model gun body 11 over substantially the entire length of the barrel 12.

前記中子１３は顆粒状あるいは粒状の物質、例えばセラ
ミックス、鋼球、ガラス、石、焼入れした硬い金属等を
混入して断面。The core 13 has a cross section mixed with granular or granular materials such as ceramics, steel balls, glass, stone, and hardened hard metal.

四角形状に鋳造して形成されている。It is cast into a rectangular shape.

また、この中子１３の鋳造鋳物は前記モデルガン本体１
１の鋳造鋳物と同じものを用いる。Further, the casting of this core 13 is made of the model gun body 1.
The same casting as No. 1 is used.

以上の説明から明らかなように本発明にあっては、モデ
ルガン本体の銃身内に該銃身の略全長にわたって、顆粒
状あるいは粒状の物質を混入し、ドリル加工などが不可
能な中子を鋳込んだので、銃身に銃口を形成して改造し
ようとしても、ドリルが中子の顆粒状あるいは粒状の物
質に当って破損し、加工ができない。As is clear from the above description, in the present invention, granular or granular substances are mixed into the barrel of the model gun body over almost the entire length of the barrel, and a core that cannot be drilled is cast. Even if an attempt was made to modify the gun barrel by forming a muzzle, the drill would hit the granular or granular material in the core and break it, making it impossible to process it.

また銃身をどの位置で切断しても顆粒状あるいは粒状の
物質を混入した中子が位置しているため、この切断した
位置より銃口を形成しようとしてもできず、改造を確実
に防止できる。In addition, no matter where the gun barrel is cut, the core containing granules or granular substances remains, so even if an attempt is made to form a muzzle from this cut position, it will not be possible to form a muzzle, and modification can be reliably prevented.

さらに中子を断面四角形状に形成したものにあっては、
銃身の外表面に中子の表面が表われずらく、仕上がきれ
いな製品を鋳造することができるという優れた利点があ
る。Furthermore, for cores with a rectangular cross section,
It has the excellent advantage that the surface of the core is not exposed on the outer surface of the gun barrel, and products with a clean finish can be cast.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の一実施例を示す概略説明図、第２図は本
発明の一実施例を示す要部説明図、第３図は第２図の■
−■線に沿う断面図である。 １１・・・モデルガン本代１２・・銃身、１３・・パ中
子。Fig. 1 is a schematic explanatory diagram showing one conventional embodiment, Fig. 2 is an explanatory diagram of main parts showing an embodiment of the present invention, and Fig. 3 is a schematic diagram showing an embodiment of the present invention.
It is a cross-sectional view along the -■ line. 11... Model gun book price 12... Barrel, 13... Pachu.

Claims (1)

【特許請求の範囲】[Claims] １ 銃身内に改造防止部材を中子として鋳込んだモデル
ガンにおいて、前記改造防止部材はドリル加工等が不可
能な粒状の物質をモデルガン本体を鋳造する材質と同−
材質内に鋳込んで形成したものであることを特徴とする
モデルガン。1. In a model gun in which a modification prevention member is cast as a core inside the gun barrel, the modification prevention member is made of a granular material that cannot be drilled, etc., and is made of the same material as the material in which the model gun body is cast.
A model gun characterized by being formed by being cast into a material.