JPH08177370A - Crusher - Google Patents

Abstract

PURPOSE: To improve work environment by fitting the forward end of a reciprocating chisel with a cover made of material having high transparency for insulating a sound and preventing the scatter of crushed pieces in undertaking a crushing work with the chisel. CONSTITUTION: Regarding a crushing device to be mounted on a work machine such as a hydraulic shovel, a cylindrical cover 5 having a large diameter section 7 of transparent material is secured to the forward end of a reciprocating chisel 4 by use of a clamping jig 8, thereby making a chisel end 4a visible during a crushing work, insulating a crushing noise and preventing the scatter of crushed pieces around. At the same time, a work is thereby allowed to be performed even at nighttime or at a place subject to a severe noise restriction such as a residential area. As a result, work environment can be improved and workability can be enhanced.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、油圧ショベルのアーム
先端部等に装着されて破砕作業する破砕機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher mounted on the tip of an arm of a hydraulic excavator for crushing work.

【０００２】[0002]

【従来の技術】破砕機は本体に対してチゼルを往復動し
て破砕作業するものであり、例えば油圧ショベルのアー
ム先端部に装着して破砕作業する。2. Description of the Related Art A crusher is one in which a chisel is reciprocally moved with respect to a main body to perform crushing work.

【０００３】[0003]

【発明が解決しようとする課題】この破砕機により破砕
作業する場合にチゼル先端部が被破砕物に衝突するの
で、そのチゼル先端部で大きな衝突音が発生し、その衝
突音が周囲に伝播するから騒音が大となり、夜間作業、
住宅地など騒音規制が厳しい作業環境での作業ができな
いことがある。When the crushing work is performed by the crusher, the tip end of the chisel collides with the object to be crushed, so that a large collision sound is generated at the tip end of the chisel and the collision sound propagates to the surroundings. Noise caused by night work,
It may not be possible to work in a work environment where the noise regulations are strict, such as in a residential area.

【０００４】また、チゼルで破砕した破砕片が周囲に飛
散するから危険である。Further, it is dangerous because the crushed pieces crushed by the chisel are scattered around.

【０００５】なお、特開平６−６６０７７号公報に示す
ように破砕機の本体にカバー体を取付けて破砕片が作業
者に向けて飛散しないようにしたものが提案されている
が、このものは本体の一側部にのみカバー体が取付けて
あるから、破砕片が周囲に飛散することを防止できない
し、衝突音については何ら改善されていない。As disclosed in Japanese Patent Laid-Open No. 6-66077, there is proposed a cover body attached to the main body of the crusher to prevent the crushed pieces from scattering toward the operator. Since the cover body is attached only to one side of the main body, it is impossible to prevent the shredded pieces from scattering around and the collision noise has not been improved at all.

【０００６】そこで、本発明は前述の課題を解決できる
ようにした破砕機を提供することを目的とする。Therefore, an object of the present invention is to provide a crusher capable of solving the above-mentioned problems.

【０００７】[0007]

【課題を解決するための手段】本体３に対してチゼル４
を往復動してチゼル４により破砕作業する破砕機におい
て、前記チゼル４に筒状のカバー体５を、その先端面が
チゼル先端面と略同一となるように取付けた破砕機。[Means for Solving the Problems] Chisel 4 with respect to main body 3
In the crusher that reciprocates and crushes by the chisel 4, a crusher in which a cylindrical cover body 5 is attached to the chisel 4 such that the tip end surface thereof is substantially the same as the tip end surface of the chisel.

【０００８】[0008]

【作 用】チゼル４で被破砕物を破砕する際にカバー
体５の先端面が被破砕物に接するから、チゼル先端部で
発生した衝突音がカバー体５で遮音されて周囲に伝播し
難く周囲の騒音が低減する。また、カバー体５により破
砕片が周囲に飛散することを防止できる。[Operation] Since the tip surface of the cover body 5 contacts the crushed object when the crushed object is crushed by the chisel 4, the collision sound generated at the tip of the chisel is blocked by the cover body 5 and is difficult to propagate to the surroundings. Ambient noise is reduced. Further, the cover body 5 can prevent the crushed pieces from scattering around.

【０００９】[0009]

【実 施 例】図１に示すように、油圧ショベルのブー
ム１の先端部に破砕機２の本体３が取付けられ、この本
体３に対してチゼル４を往復動して破砕作業するように
してある。なお、本体３に対してチゼル４を往復動する
構造は従来公知であり、その詳細な説明は省略する。[Example] As shown in Fig. 1, a body 3 of a crusher 2 is attached to the tip of a boom 1 of a hydraulic excavator, and a chisel 4 is reciprocally moved with respect to the body 3 to perform a crushing work. is there. The structure for reciprocating the chisel 4 with respect to the main body 3 is well known in the art, and a detailed description thereof will be omitted.

【００１０】前記チゼル４の周囲にはカバー体５が取付
けられ、このカバー体５は図２と図３に示すように小径
基端筒状部６とこの小径基端筒状部６と連続し順次大径
となった大径先端部７より筒状体となり、熱可塑性エラ
ストマ等の透視性の良い材料より製作してある。A cover body 5 is attached around the chisel 4, and the cover body 5 is continuous with the small-diameter base end tubular portion 6 and the small-diameter base end tubular portion 6 as shown in FIGS. 2 and 3. A cylindrical body is formed from the large-diameter tip portion 7 having a larger diameter in order, and is made of a material having good transparency such as a thermoplastic elastomer.

【００１１】そして、小径基端部６がチゼル４の外周面
にクランプ治具８で締付け固定して取付けられ、大径先
端部７の先端面７ａがチゼル４の先端面４ａより若干突
出し、チゼル４の先端面４ａを被破砕物９に衝突すると
大径先端部７の先端面７ａが被破砕物９に接してチゼル
４の先端部周囲に密閉した環状の空間部１０を構成する
ようにしてある。Then, the small-diameter base end portion 6 is fixedly attached to the outer peripheral surface of the chisel 4 by a clamp jig 8 so that the tip end surface 7a of the large-diameter tip end portion 7 is slightly projected from the tip end surface 4a of the chisel 4 to form a chisel. When the tip surface 4a of 4 collides with the object 9 to be crushed, the tip surface 7a of the large-diameter tip portion 7 comes into contact with the object 9 to be crushed to form a closed annular space 10 around the tip of the chisel 4. is there.

【００１２】このようであるから、チゼル先端部に発生
した衝突音がカバー体５で遮音されて周囲に伝播し難く
なって騒音が低減すると共に、破砕片が周囲に飛散する
ことを防止する。Because of this, the collision sound generated at the tip of the chisel is shielded by the cover body 5 and becomes difficult to propagate to the surroundings to reduce the noise, and at the same time, the fragments are prevented from scattering around.

【００１３】また、カバー体５は透視性の良い材料より
製作されているからチゼル４の衝突部分を作業者が目視
確認できるから、破砕作業し易くなる。Further, since the cover body 5 is made of a material having a good see-through property, the operator can visually confirm the collision portion of the chisel 4, so that the crushing work becomes easy.

【００１４】[0014]

【発明の効果】チゼル４で被破砕物を破砕する際にカバ
ー体５の先端面が被破砕物に接するから、チゼル先端部
で発生した衝突音がカバー体５で遮音されて周囲に伝播
し難く周囲の騒音が低減する。これにより、夜間作業、
住宅地など騒音規制が厳しい作業環境での破砕作業が可
能となる。また、カバー体５により破砕片が周囲に飛散
することを防止できる。As the tip surface of the cover body 5 contacts the crushed object when the crushed object is crushed by the chisel 4, the collision sound generated at the tip of the chisel is shielded by the cover body 5 and propagates to the surroundings. Difficult to reduce the surrounding noise. This allows for night work,
It enables crushing work in a work environment where noise regulations are strict, such as in a residential area. Further, the cover body 5 can prevent the crushed pieces from scattering around.

【００１５】請求項２によれば、カバー体５を透して破
砕部分を作業者が目視できるから作業性が向上する。According to the second aspect, since the operator can see the crushed portion through the cover body 5, the workability is improved.

【図面の簡単な説明】[Brief description of drawings]

【図１】油圧ショベルに破砕機を取付けた状態の斜視図
である。FIG. 1 is a perspective view showing a state in which a crusher is attached to a hydraulic excavator.

【図２】カバー体取付部の縦断面図である。FIG. 2 is a vertical cross-sectional view of a cover body mounting portion.

【図３】図２のＡ−Ａ断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 2;

【符号の説明】[Explanation of symbols]

１…アーム ２…破砕機 ３…本体 ４…チゼル ５…カバー体 ６…小径基端部 ７…大径先端部 ８…クランプ治具 ９…被破砕物。 DESCRIPTION OF SYMBOLS 1 ... Arm 2 ... Crusher 3 ... Main body 4 ... Chisel 5 ... Cover body 6 ... Small diameter base end 7 ... Large diameter tip 8 ... Clamp jig 9 ... Crushed object.

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 本体３に対してチゼル４を往復動してチ
ゼル４により破砕作業する破砕機において、 前記チゼル４に筒状のカバー体５を、その先端面がチゼ
ル先端面と略同一となるように取付けたことを特徴とす
る破砕機。1. A crusher in which a chisel 4 is reciprocally moved relative to a main body 3 to perform a crushing work by the chisel 4, and a cylindrical cover body 5 is provided on the chisel 4, the tip end surface of which is substantially the same as the tip end surface of the chisel. A crusher characterized by being installed so that 【請求項２】 前記カバー体５を透視性の良い材料より
製作した請求項１記載の破砕機。2. The crusher according to claim 1, wherein the cover body 5 is made of a material having good transparency.