JP3039317U

JP3039317U - Crushing machine

Info

Publication number: JP3039317U
Application number: JP1996012250U
Authority: JP
Inventors: 誠一坂戸; 末八三浦; 正幸浅井; 貴光伊藤; 正幸坂戸; 征男仲田
Original assignee: 株式会社坂戸工作所
Priority date: 1996-11-29
Filing date: 1996-11-29
Publication date: 1997-07-15
Anticipated expiration: 2002-11-29

Abstract

(57)【要約】【課題】鉄筋コンクリート製等の構造物（ビル等）の
解体装置の主要部として使用するもので、その鉄筋コン
クリート壁，床，天井，柱等のコンクリート構造材を破
砕するのに、最も能率的にすること。【解決手段】固定顎本体２と、該固定顎本体２に対し
て開閉する可動顎本体３と、前記固定顎本体２及び可動
顎本体３とを設けた破砕機外筺１と、小円弧刃先部５ａ
₁ を介して略直角状とした後縁側刃先５ａと，略全体を
大円弧状刃先部とした前縁側刃先５ｂとからなり，後縁
側刃先５ａを前記可動顎本体３の内方側に向けて設けた
半割り算盤珠状の可動側破砕刃５と、前記固定顎本体２
の先端に設けた半割り算盤珠状の固定側破砕刃６とから
なること。 (57) [Abstract] [PROBLEM] To be used as a main part of a dismantling device for structures (buildings, etc.) made of reinforced concrete, etc., for crushing concrete structural materials such as reinforced concrete walls, floors, ceilings, columns, etc. Be the most efficient. A fixed jaw body (2), a movable jaw body (3) that opens and closes with respect to the fixed jaw body (2), a shredder outer casing (1) provided with the fixed jaw body (2) and the movable jaw body (3), and a small arc edge. Part 5a
₁ is composed of a trailing edge side cutting edge 5a having a substantially right angle shape and a leading edge side cutting edge 5b having a large arcuate cutting edge portion as a whole, and the trailing edge side cutting edge 5a is directed toward the inner side of the movable jaw body 3. A half-division disc-shaped movable side crushing blade 5 provided and the fixed jaw body 2
It consists of a fixed side crushing blade 6 in the shape of a half-division board provided at the tip of.

Description

【考案の詳細な説明】[Detailed description of the invention]

【０００１】[0001]

【考案の属する技術分野】[Technical field to which the invention belongs]

本考案は、鉄筋コンクリート製等の構造物（ビル等）の解体装置の主要部として使用するもので、その鉄筋コンクリート壁，床，天井，柱等のコンクリート構造材を破砕するのに、最も能率的にできる破砕機に関する。 The present invention is used as a main part of a dismantling device for structures (buildings, etc.) made of reinforced concrete, and is the most efficient for crushing concrete structural materials such as reinforced concrete walls, floors, ceilings, and pillars. Related to crusher

【０００２】[0002]

【従来の技術】[Prior art]

近年、鉄筋コンクリート製等の構造物（ビル等）の壁，柱のコンクリート構造材を破砕するための破砕機が種々存在している。その多くは固定顎と可動顎とを油圧シリンダ機構等にて開閉自在に設け、その固定顎と可動顎に設けた破砕刃によってコンクリート構造材を破砕するものである。 In recent years, there are various crushers for crushing concrete structural materials such as walls and pillars of structures such as reinforced concrete (buildings, etc.). In most of them, a fixed jaw and a movable jaw are opened and closed by a hydraulic cylinder mechanism etc., and the concrete structure material is crushed by a crushing blade provided on the fixed jaw and the movable jaw.

【０００３】その破砕刃は最近では半割算盤珠状のものが多く使用されている。この半割算盤珠状の破砕刃の考案は、当該出願人が既に、昭和５６年８月に出願しその後、特公昭６０−４３５１３号として出願公告され、後に権利化されている。この半割算盤珠状とした破砕刃は、コンクリート構造材を破砕する際に固定顎と可動顎とで挟んだコンクリート構造材に楔状に食い込み、後はその食い込み深さが深くなるに従い、コンクリート構造材にひびが入り、そのひびが広がりながら、コンクリート構造材が破砕される仕組みとなっている。Recently, the crushing blade is often used in the form of a half-divided disc. The applicant of the invention of this half-divided bead-shaped crushing blade has already filed an application in August 1981, and was subsequently published as Japanese Patent Publication No. 60-43513, and later patented. This half-divided disc-shaped crushing blade bites into the concrete structure material sandwiched between the fixed jaw and the movable jaw in a wedge shape when crushing the concrete structure material. The structure is such that cracks occur in the material and the concrete structure material is crushed as the cracks spread.

【０００４】特に、半割算盤珠状の破砕刃の中でも、その側面形状を完全な半円状とはしないタイプのもので、側面形状が台形状で、その前縁側が略直角状で後縁側が円弧状としたタイプのものが存在するが、このタイプの半割算盤珠状とした可動側破砕刃では、後縁側の円弧状刃の部分を可動顎の内方に位置して設けている。In particular, even among the crushing blades in the shape of a half-divided disc, the side surface shape is not a perfect semicircular shape, the side surface shape is trapezoidal, and the front edge side is substantially right-angled. There is a type in which the trailing edge side has an arcuate shape, but in this type of half-dicing disc traverse movable side crushing blade, the arcuate blade part on the trailing edge side is located inside the movable jaw. It is provided.

【０００５】[0005]

【考案が解決しようとする課題】[Problems to be solved by the device]

このような半割算盤珠状の可動側破砕刃では、上述したように、コンクリート構造材に半割算盤珠状の可動側破砕刃が食い込み、ひびを入れつつ、壁，柱等のコンクリート構造材を破砕することができる。特に、図１７に示すように、前述の側面形状が台形状で、その前縁側を略直角状とし、後縁側全体を略円弧状としたタイプでは、固定顎に可動顎を挟んで、可動顎を閉じたときには、まず後縁側全体からコンクリート構造材に当接し、コンクリート構造材を破砕することとなる。 With such a half-division disc-shaped movable side crushing blade, as described above, the half-division disc-shaped movable side crushing blade bites into the concrete structure material and cracks, while the concrete structure material such as walls and columns is being cracked. Can be crushed. In particular, as shown in FIG. 17, in the type in which the side surface shape is trapezoidal, the front edge side is substantially right angled, and the rear edge side is generally arcuate shape, the movable jaw is sandwiched between the fixed jaws. When closing the concrete structure, the concrete structure will be crushed by contacting the concrete structure from the entire trailing edge.

【０００６】そして、その円弧状刃面がコンクリート構造材の表面に比較的広い範囲にわたって当接し、その箇所に略瞬間的にひびを入れながらコンクリート構造材を破砕してゆくことができる。これは、コンクリート構造材自体の内部組織が弱くなっている場合には極めて有効である。Then, the arcuate blade surface abuts the surface of the concrete structural material over a relatively wide range, and the concrete structural material can be crushed while cracking the location almost instantaneously. . This is extremely effective when the internal structure of the concrete structural material itself is weakened.

【０００７】しかし、コンクリート構造材の中でも、特にコンクリート成分の密度が高くなっているものでは、非常に硬いものとなり、破砕時における抵抗は極めて大きくなることがある。このような、特に、硬いコンクリート構造材を破砕するときには、上記のように、その後縁側全体を円弧形状としたものでは、破砕初期における可動側破砕刃と固定側破砕刃は、コンクリート構造材に対して、その当接部分が広い範囲となり線接触状態となる。However, among the concrete structural materials, particularly those having a high density of concrete components may become extremely hard and the resistance upon crushing may become extremely large. When crushing such a hard concrete structural material, the movable crushing blade and the fixed crushing blade at the initial stage of crushing should be made of concrete when crushing the entire trailing edge as described above. With respect to the structural material, the abutting part has a wide area and is in line contact.

【０００８】それゆえに、破砕するための力はその当接部分で分散し、単位面積当たりの破砕力は比較的小さくなり、破砕が極めて困難になる。さらに、従来タイプとしたものではコンクリート構造材を破砕する際に、破砕刃とコンクリート構造材との間に滑りが生じて、固定顎と可動顎からコンクリート構造材がずれてしまうこともしばしば有り、破砕作業の効率を低下させることにもなる。Therefore, the force for crushing is dispersed at the abutting portion, the crushing force per unit area becomes relatively small, and crushing becomes extremely difficult. Furthermore, in the conventional type, when crushing a concrete structural material, slippage often occurs between the crushing blade and the concrete structural material, and the concrete structural material often shifts from the fixed jaw and the movable jaw. It also reduces the efficiency of the crushing work.

【０００９】特に、その断面が略正方形或いは長方形等の矩形状とした柱状体において、該柱状体が大きなものである場合には、その角部箇所から破砕しなければならず、これは、両破砕刃にて直角に隣合う両壁面箇所を破砕することになる。この場合には、固定顎と可動顎に設けた両破砕刃に対して、直角に隣合う両壁面は、相対的に急傾斜面状となる。したがって、両破砕刃にて直角に隣合う両壁面より破砕作業を行おうとするときには、両破砕刃が両壁面に食い込もうとするよりも前に壁面を滑り出すこととなり、このような矩形状の柱状体の角部箇所からの破砕作業は極めて困難であった。In particular, in the case of a columnar body having a rectangular cross section, such as a substantially square or rectangular shape, if the columnar body is large, it must be crushed from the corners. The crushing blade will crush both wall parts adjacent to each other at a right angle. In this case, the two wall surfaces that are adjacent to each other at a right angle to the crushing blades provided on the fixed jaw and the movable jaw are relatively steeply inclined. Therefore, when attempting to perform crushing work from both wall surfaces that are adjacent to each other at a right angle with both crushing blades, both crushing blades will slide out of the wall surface before attempting to bite into both wall surfaces. The crushing operation from the corners of the column was extremely difficult.

【００１０】[0010]

【課題を解決するための手段】[Means for Solving the Problems]

そこで、考案者は上記課題を解決すべく鋭意，研究を重ねた結果、本考案を、固定顎本体と、該固定顎本体に対して開閉する可動顎本体と、前記固定顎本体及び可動顎本体とを設けた破砕機外筺と、小円弧刃先部を介して略直角状とした後縁側刃先と，略全体を大円弧状刃先部とした前縁側刃先とからなり，後縁側刃先を前記可動顎本体の内方側に向けて設けた半割り算盤珠状の可動側破砕刃と、前記固定顎本体の先端に設けた半割り算盤珠状の固定側破砕刃とからなる破砕機としたことにより、様々なコンクリート構造材の破砕作業を無駄なく短時間に効率的に行うことができ、上記課題を解決したものである。 Therefore, as a result of the inventors' earnest studies and researches to solve the above-mentioned problems, as a result of the present invention, the present invention has been proposed to include a fixed jaw body, a movable jaw body that opens and closes with respect to the fixed jaw body, the fixed jaw body and the movable jaw. It consists of a shredder casing provided with a main body, a trailing edge side cutting edge that is substantially rectangular through a small arcuate blade edge portion, and a leading edge side cutting edge that has a large arcuate blade edge portion as a whole. A crusher consisting of a half-division disc traverse-shaped movable-side crushing blade provided toward the inner side of the movable jaw body and a half-division disc-shaped fixed-side crushing blade provided at the tip of the fixed jaw body. As a result, various concrete structural materials can be efficiently crushed in a short time without waste, and the above problems are solved.

【００１１】[0011]

【考案の実施の形態】[Embodiment of the invention]

以下、本考案の実施の形態を図面に基づいて説明すると、破砕機は、図１，図２等に示すように、主に破砕機外筺１，固定顎本体２及び可動顎本体３から構成され、まず破砕機外筺１に固定顎本体２が形成され、該固定顎本体２上において可動顎本体３が開閉動作を行うものである。その可動顎本体３は略中間箇所が破砕機外筺１に枢支され、該枢支箇所を可動顎枢支部Ｐ₁ と称する。Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The crusher mainly includes a crusher outer casing 1, a fixed jaw body 2 and a movable jaw body 3 as shown in FIGS. First, the fixed jaw body 2 is formed on the crusher casing 1, and the movable jaw body 3 is opened and closed on the fixed jaw body 2. The movable jaw main body 3 is pivotally supported on the crusher outer casing 1 at a substantially intermediate position, and the pivotally supported position is referred to as a movable jaw pivot support P ₁ .

【００１２】ここで、固定顎本体２及び可動顎本体３の開閉方向において互いに対向する側を固定顎本体２及び可動顎本体３の作業面側と称し、また該作業面側の反対側を固定顎本体２及び可動顎本体３の外方側と称する。さらに、固定顎本体２及び可動顎本体３の長手方向とは、破砕機外筺１から外方に突出する方向とし、幅方向はその長手方向に直交する方向とする。Here, the sides of the fixed jaw body 2 and the movable jaw body 3 that face each other in the opening / closing direction are referred to as the working surface side of the fixed jaw body 2 and the movable jaw body 3, and the opposite side of the working surface side is fixed. It is referred to as the outer side of the jaw body 2 and the movable jaw body 3. Further, the longitudinal direction of the fixed jaw main body 2 and the movable jaw main body 3 is a direction projecting outward from the crusher outer casing 1, and the width direction is a direction orthogonal to the longitudinal direction.

【００１３】その固定顎本体２及び可動顎本体３は、図１，図２に示すように、破砕機外筺１の内部に装着されているシリンダ４により可動する。該シリンダ４は、図２に示すように、シリンダ筒体４ａが破砕機外筺１内に破砕機外筺１の垂直面上を回動自在に設けられ、ピストンロッド４ｂの先端が可動顎本体３の刃先反対側端に枢支され、該枢支箇所をピストンロッド枢支部Ｐ₂ と称する。The fixed jaw main body 2 and the movable jaw main body 3 are moved by a cylinder 4 mounted inside the crusher casing 1 as shown in FIGS. As shown in FIG. 2, the cylinder 4 has a cylinder tube body 4a rotatably provided in the crusher outer casing 1 on a vertical surface of the crusher outer casing 1, and a tip of a piston rod 4b is a movable jaw body. 3 is pivotally supported at the end on the opposite side of the cutting edge, and the pivotally supported portion is referred to as a piston rod pivotal support portion P ₂ .

【００１４】その固定顎本体２の作業面側には、図１，図２に示すように、長手方向に沿って固定顎側切断体７が設けられており、また可動顎本体３の作業面側には長手方向に沿って可動顎側切断体８がそれぞれ設けられ、その固定顎本体２上を可動顎本体３が開閉するときに、これらとともに固定顎側切断体７と可動顎側切断体８とが鋏状に可動して剪断により被切断物を切断する。As shown in FIGS. 1 and 2, a fixed jaw side cutting body 7 is provided along the longitudinal direction on the work surface side of the fixed jaw body 2, and the work surface of the movable jaw body 3 is also provided. On the side, movable jaw side cutting bodies 8 are provided along the longitudinal direction, and when the movable jaw body 3 is opened and closed on the fixed jaw body 2, the fixed jaw side cutting body 7 and the movable jaw side cutting body 8 are also provided with these. The body 8 moves like scissors and cuts the object to be cut by shearing.

【００１５】その可動顎本体３には、可動側破砕刃５が装着されている。該可動側破砕刃５は算盤珠を略半分とした形状で、その刃先は先端に向かうに従い次第に細くなっており、その可動側破砕刃５は、前後方向に沿う断面形状が後部側寄りにて最大厚さとなる流線形状をなしている〔図７（Ａ）参照〕。A movable side crushing blade 5 is attached to the movable jaw body 3. The movable-side crushing blade 5 has a shape in which an abacus is roughly halved, and its blade edge is gradually tapered toward the tip. The movable-side crushing blade 5 has a cross-sectional shape along the front-rear direction that is closer to the rear side. It has a streamlined shape with the maximum thickness [see FIG. 7 (A)].

【００１６】また、その可動側破砕刃５は、側面より見て前後方向の後部側を後縁側刃先５ａと称し、また、前方側を前縁側刃先５ｂと称する。その後縁側刃先５ａは、小円弧刃先部５ａ₁ を介して側面的に見て略直角状として形成されたものである。該小円弧刃先部５ａ₁ は、後縁側刃先５ａを構成する略直角状の角状部となるものであって、その角先端は小円弧状をなしている。The rear side of the movable side crushing blade 5 in the front-rear direction when viewed from the side is referred to as a trailing edge side 5a, and the front side is referred to as a leading edge side 5b. Thereafter edge cutting edge 5a are those formed as a substantially right angle shape as seen in side manner through a small circular arc edge portion 5a _1. The small circular arc blade edge portion 5a ₁ is a substantially right angled angular portion that constitutes the trailing edge side blade edge 5a, and the corner tip has a small circular arc shape.

【００１７】その小円弧状の曲率半径は可動側破砕刃５全体から見ると極めて小さいものである。また、直角状の後縁側刃先５ａは、側面より見て略直角の状態に見えるものであり、その略直角とは、直角に近い鈍角や鋭角も含むものとする〔図３（Ａ）等参照〕。また、その後縁側刃先５ａは、前記小円弧刃先部５ａ₁とともに後端刃先部５ａ₂ と先端刃先部５ａ₃ とから構成されるものであって、後端刃先部５ａ₂ と先端刃先部５ａ₃ とは小円弧刃先部５ａ₁ を介して連続しており、また先端刃先部５ａ₃ の前方側は、前縁側刃先５ｂに連続している〔図３（Ａ）参照〕。The radius of curvature of the small arc is extremely small when viewed from the movable side crushing blade 5 as a whole. Further, the right-angled trailing edge side cutting edge 5a appears to be a substantially right angle when viewed from the side surface, and the substantially right angle also includes an obtuse angle and an acute angle that are close to a right angle [see FIG. 3 (A) and the like]. Further, after that edge side cutting edge 5a, the be one that is composed of a rear end edge portion 5a ₂ and the tip edge portion 5a ₃ Metropolitan with small circular arc cutting edge 5a _1, the rear end edge portion 5a ₂ and the tip edge portion 5a ₃ Is continuous via the small circular arc blade edge portion 5a _1, and the front side of the tip blade edge portion 5a ₃ is continuous with the leading edge side blade edge 5b [see FIG. 3 (A)].

【００１８】その可動側破砕刃５の後縁側刃先５ａが可動顎本体３の内方に向けて、その可動側破砕刃５が可動顎本体３の先端付近に装着されるものである。この場合に可動顎本体３の内方とは、前記可動顎枢支部Ｐ₁ が存在する側のことを言うものであり、従って前記後縁側刃先５ａは、可動顎枢支部Ｐ₁ に面していることになる（図２参照）。その可動側破砕刃５の前縁側刃先５ｂの形状は略全体を大円弧状刃先部からなるものとし、具体的には略４分の１とした円形状に形成されており、前記後縁側刃先５ａから連続的に形成されている。The movable-side crushing blade 5 has its trailing edge 5a directed inward of the movable jaw body 3, and the movable-side crushing blade 5 is mounted near the tip of the movable jaw body 3. In this case, the inner side of the movable jaw main body 3 means the side where the movable jaw pivot support P ₁ is present, and therefore the trailing edge side cutting edge 5a faces the movable jaw pivot support P ₁ . (See Figure 2). The leading edge side cutting edge 5b of the movable side crushing blade 5 is formed into a substantially arcuate cutting edge part in its entirety, and is specifically formed into a circular shape of about a quarter. It is formed continuously from 5a.

【００１９】次に、固定顎本体２には、固定側破砕刃６が設けられている（図１，図２等参照）。該固定側破砕刃６は、固定顎本体２と可動顎本体３とが閉じた状態で、前記可動側破砕刃５に対して前後方向に位置がずれる状態で装着されている。図１等の実施例では、固定側破砕刃６が可動側破砕刃５より外側に位置するようになっている。その固定側破砕刃６は、前記可動側破砕刃５と略同形状をなしており、固定側破砕刃６も可動側破砕刃５と同様に算盤珠を略半分とした形状で、固定側破砕刃６の各部分の名称は、可動側破砕刃５と対応して同様とする。Next, the fixed jaw body 2 is provided with a fixed-side crushing blade 6 (see FIGS. 1 and 2). The fixed-side crushing blade 6 is attached to the movable-side crushing blade 5 with the fixed jaw main body 2 and the movable jaw main body 3 closed, with the position thereof displaced in the front-rear direction. In the embodiment shown in FIG. 1 and the like, the fixed side crushing blade 6 is located outside the movable side crushing blade 5. The fixed-side crushing blade 6 has substantially the same shape as that of the movable-side crushing blade 5, and the fixed-side crushing blade 6 has a shape in which the abacus beads are halved in the same manner as the movable-side crushing blade 5. The name of each part of the blade 6 is the same as that of the movable side crushing blade 5.

【００２０】即ち、固定側破砕刃６は、可動側破砕刃５と同様に前後方向に沿う断面形状が後部側寄りにて最大厚さとなる流線形状をなし、その側面より見て前後方向の後部側を後縁側刃先６ａと称し、固定側破砕刃６の前方側を前縁側刃先６ｂと称する。その後縁側刃先６ａは、小円弧刃先部６ａ₁ を介して側面的に見て略直角状として形成されたものである。That is, the fixed-side crushing blade 6 has a streamlined shape in which the cross-sectional shape along the front-rear direction is the maximum thickness toward the rear side, like the movable-side crushing blade 5, and the front-rear direction when viewed from the side surface thereof. The rear side is referred to as a trailing edge side cutting edge 6a, and the front side of the fixed side crushing blade 6 is referred to as a leading edge side cutting edge 6b. The trailing edge side cutting edge 6a is formed in a substantially right angle shape when viewed laterally through the small circular arc cutting edge portion 6a ₁ .

【００２１】該小円弧刃先部６ａ₁ は、略直角状の後縁側刃先６ａを構成する角状部となるものであるが、その曲率半径は固定側破砕刃６全体から見ると極めて小さく、直角状の後縁側刃先６ａは、側面より見て略直角の状態に見える。その略直角とは、直角以外に直角に近い鈍角や鋭角も含む。また、その後縁側刃先６ａは前記小円弧刃先部６ａ₁ とともに後端刃先部６ａ₂ と先端刃先部６ａ₃ とから構成されるものであって、後端刃先部６ａ₂ と先端刃先部６ａ₃ とは小円弧刃先部６ａ₁ を介して連続しており、また先端刃先部６ａ₃ の前方側は前縁側刃先６ｂに連続している〔図３（Ｂ）参照〕。このように、固定側破砕刃６は可動側破砕刃５と同等形状をなしている。The small circular arc blade edge portion 6a ₁ is an angular portion that constitutes the trailing edge side blade edge 6a having a substantially right angle, but its radius of curvature is extremely small when viewed from the fixed side crushing blade 6 as a whole. The corner-shaped trailing edge side cutting edge 6a appears to be substantially right angle when viewed from the side surface. The substantially right angle includes not only right angles but also obtuse angles and acute angles that are close to right angles. Moreover, with subsequent edge side edge 6a a shall consist rear edge portion 6a ₂ and the distal tip portion 6a ₃ Metropolitan together with the small circular arc cutting edge 6a _1, rear edge portion 6a ₂ and the distal tip portion 6a ₃ Is continuous via the small circular arc blade edge portion 6a _1, and the front side of the tip blade edge portion 6a ₃ is continuous with the leading edge side blade edge 6b [see FIG. 3 (B)]. Thus, the fixed-side crushing blade 6 has the same shape as the movable-side crushing blade 5.

【００２２】その固定側破砕刃６の後縁側刃先６ａを固定顎本体２の内方に向けて、その固定側破砕刃６が固定顎本体２の先端箇所に装着されている。この場合に固定顎本体２の内方とは、前記可動顎枢支部Ｐ₁ が存在する側のことを言うものであり、従って前記後縁側刃先６ａは可動顎枢支部Ｐ₁ に面していることになる（図１，図２等参照）。The fixed-side crushing blade 6 is attached to the tip of the fixed-jaw body 2 with the trailing-edge-side cutting edge 6 a directed inward of the fixed-jaw body 2. In this case, the inside of the fixed jaw main body 2 means the side where the movable jaw pivot support P ₁ is present, and therefore the trailing edge side cutting edge 6a faces the movable jaw pivot support P _1. (See Fig. 1 and Fig. 2).

【００２３】該固定側破砕刃６は、可動側破砕刃５よりも側面より見て一回り小さく形成されている（図１，図３参照）。或いは、必要に応じて可動側破砕刃５は、固定側破砕刃６と側面より見て同等の大きさとする実施例も存在する〔図７（Ｂ）参照〕。或いは、特に図示しないが、固定側破砕刃６を可動側破砕刃５よりも側面から見て一回り大きく形成することもある。The fixed-side crushing blade 6 is formed to be slightly smaller than the movable-side crushing blade 5 when viewed from the side (see FIGS. 1 and 3). Alternatively, there is an embodiment in which the movable-side crushing blade 5 has the same size as the fixed-side crushing blade 6 when viewed from the side, if necessary [see FIG. 7 (B)]. Alternatively, although not particularly shown, the fixed-side crush blade 6 may be formed to be slightly larger than the movable-side crush blade 5 when viewed from the side.

【００２４】その可動側破砕刃５と固定側破砕刃６とは、その位置を前後方向に適宜にずらして設けている実施例が存在している。即ち、固定顎本体２に可動顎本体３を閉じた状態で、可動側破砕刃５と固定側破砕刃６とを前後方向に位置をずらして設けている。その位置のずれは、固定顎本体２と可動顎本体３とを十分に閉じた状態で、可動側破砕刃５と固定側破砕刃６とが互いに触れ合わない程度のずれである（図２の可動顎本体３の想像線で示した箇所を参照）。その固定側破砕刃６と可動側破砕刃５とは、いずれが外方に位置してもよいが、図１，図２に示す実施例では固定側破砕刃６を可動側破砕刃５よりも外方に位置させている。There is an embodiment in which the movable side crushing blade 5 and the fixed side crushing blade 6 are provided with their positions appropriately shifted in the front-rear direction. That is, with the movable jaw body 3 closed to the fixed jaw body 2, the movable-side crushing blade 5 and the fixed-side crushing blade 6 are arranged with their positions displaced in the front-rear direction. The positional deviation is such that the movable crushing blade 5 and the fixed crushing blade 6 do not touch each other when the fixed jaw body 2 and the movable jaw body 3 are sufficiently closed (Fig. 2 (Refer to the phantom line of the movable jaw body 3). Either of the fixed-side crushing blade 6 and the movable-side crushing blade 5 may be located outward, but in the embodiment shown in FIGS. 1 and 2, the fixed-side crushing blade 6 is more than the movable-side crushing blade 5. It is located outside.

【００２５】また、図６（Ａ）及び（Ｂ）では、可動側破砕刃５をその後縁側刃先５ａが可動顎枢支部Ｐ₁ に向けて可動顎本体３に設け、固定側破砕刃６はその後縁側刃先６ａが固定顎本体２の外方を向くようにして設けた実施形態を示している。Further, in FIGS. 6A and 6B, the movable side crushing blade 5 is provided on the movable jaw main body 3 so that the trailing edge side blade edge 5 a faces the movable jaw pivot support P ₁ , and the fixed side crushing blade 6 is This shows an embodiment in which the edge side cutting edge 6a is provided so as to face the outside of the fixed jaw body 2.

【００２６】[0026]

【作用】[Action]

本考案の破砕機によって被破砕物Ｓを破砕するときの破砕力Ｆの作用状態を説明する。まず、図８，図９は、本考案における可動側破砕刃５及び固定側破砕刃６の破砕作用を示すものであり、これに対して図１７は、従来のタイプの算盤珠状の破砕刃の装着によるものである。 The action state of the crushing force F when the crushed object S is crushed by the crusher of the present invention will be explained. First, FIGS. 8 and 9 show the crushing action of the movable side crushing blade 5 and the fixed side crushing blade 6 in the present invention, while FIG. 17 shows the conventional type of abacus crushing blade. It is due to the wearing of.

【００２７】まず、構造物を解体して生じた被破砕物Ｓを固定顎本体２と可動顎本体３とでくわえる。このときに、可動側破砕刃５では、まず小円弧刃先部５ａ₁ 付近が被破砕物Ｓの表面に当接する。その可動側破砕刃５の小円弧刃先部５ａ₁ が被破砕物Ｓの表面に最初に当接するポイントを当接部Ｑ₅と称する（図８参照）。その可動側破砕刃５の当接部Ｑ₅による被破砕物Ｓ表面への接触状態は、ほとんど点接触状態（略点接触状態を含む）である〔図８（Ａ）参照〕。First, the crushed object S generated by disassembling the structure is held between the fixed jaw body 2 and the movable jaw body 3. At this time, in the movable side crushing blade 5, first, the vicinity of the small arc edge 5a ₁ comes into contact with the surface of the crushed object S. The small arc cutting edge 5a ₁ of the movable crushing blade 5 is referred to as a contact portion Q ₅ initially point contact with the surface of the crush material S (see FIG. 8). The contact state of the contact portion Q ₅ of the movable side crushing blade 5 with the surface of the crushed object S is almost a point contact state (including a substantially point contact state) [see FIG. 8 (A)].

【００２８】そこで、可動側破砕刃５による被破砕物Ｓへの破砕工程の初期段階において、破砕力Ｆは、小円弧刃先部５ａ₁ 部分の当接部Ｑ₅による集中荷重となる。即ち、小円弧刃先部５ａ₁ の当接部Ｑ₅には、破砕力Ｆが分散することなく略一点に集中することで、表面の固い被破砕物Ｓであっても当接部Ｑ₅を中心として食い込むことができる〔図９（Ａ）参照〕。Therefore, in the initial stage of the crushing process of the movable-side crushing blade 5 to the crushed object S, the crushing force F becomes a concentrated load by the contact portion Q ₅ of the small arc blade tip portion 5a ₁ portion. That is, the contact portion Q ₅ of the small arcuate edge portion 5a _1, by crushing force F is concentrated in an approximately one point without dispersion, even hard of surface-be-crushed object S abutments Q ₅ It can penetrate into the center [see Fig. 9 (A)].

【００２９】これに対して、従来タイプにおける算盤珠状の破砕刃の装着によるものでは、図１７に示すように、破砕刃の後縁側が大きな円弧状の刃先となっているために、被破砕物Ｓとの当接部Ｑ₅'は、明らかに点接触とはいえず、比較的広い範囲での線接触となる。従って、破砕力Ｆ’はその当接部Ｑ₅'での線接触範囲での分布荷重状態となり、破砕力Ｆ’が分散し、特に表面の固い被破砕物Ｓの破砕には極めて不利な条件となる。On the other hand, in the conventional type in which the abacus-shaped crushing blade is attached, as shown in FIG. 17, since the trailing edge side of the crushing blade has a large arcuate blade edge, The contact portion Q ₅ ′ with the object S is obviously not a point contact but a line contact in a relatively wide range. Thus, crushing force F 'its abutment Q _5' becomes distributed load state in line contact range, the crushing force F 'is dispersed, disadvantageous Te because poles especially crushing hard of the surface object to be crushed S It will be a condition.

【００３０】また、固定側破砕刃６については、前記可動側破砕刃５と同様の働きをなすものである。即ち、固定側破砕刃６の小円弧刃先部６ａ₁ 付近が被破砕物Ｓに最初に当接し、その当接するポイントを当接部Ｑ₆とする〔図８（Ｂ）参照〕。そして、破砕工程の初期段階において、破砕力Ｆは小円弧刃先部６ａ₁ と被破砕物Ｓとの当接部Ｑ₆における集中荷重となり、従って、破砕力Ｆが分散することなく、当接部Ｑ₆を中心として小円弧刃先部６ａ₁ が被破砕物Ｓに食い込みつつ破砕することができる〔図９（Ｂ）参照〕。Further, the fixed side crushing blade 6 has the same function as the movable side crushing blade 5. That is, the vicinity of the small arc edge 6a _{1 of} the fixed-side crushing blade 6 first comes into contact with the crushed object S, and the point of contact is designated as the contacting portion Q ₆ [see FIG. 8 (B)]. Then, at the initial stage of the crushing process, the crushing force F becomes a concentrated load at the contact portion Q ₆ between the small arcuate blade edge portion 6a ₁ and the object S to be crushed. The small arcuate blade edge portion 6a ₁ can bite into the object S to be crushed while centering on the portion Q ₆ [see FIG. 9 (B)].

【００３１】次に、可動側破砕刃５及び固定側破砕刃６が被破砕物Ｓに対して食い込み易いことを示すために、別の説明をする。即ち、後縁側刃先５ａで、前記小円弧刃先部５ａ₁ の当接部Ｑ₅の後縁側（後端刃先部５ａ₂ 側）における仮想接線Ｌ₅− Ｌ₅を設定する〔図８（Ａ）参照〕。そして、可動側破砕刃５の小円弧刃先部５ａ₁ が被破砕物Ｓに食い込むときの、後縁側刃先５ａの仮想接線Ｌ₅−Ｌ₅と被破砕物Ｓの表面とのなす角θ₅により、その食い込み易さを示したものである。即ち、図８（Ａ）では、仮想接線Ｌ₅−Ｌ₅と被破砕物Ｓの表面とのなす角θ₅ が大きくなっており、これは、可動側破砕刃５の後縁側刃先５ａが被破砕物Ｓに食い込むときの角度が大きくなる。これによって、後縁側刃先５ａは、被破砕物Ｓに対して急角度でより鋭く、食い込むことができる。また、可動側破砕刃５全体の被破砕物Ｓへの食い込み方向における抵抗は、小さくすることができ、破砕作業の効率を向上させることができる。Next, another explanation will be given in order to show that the movable side crushing blade 5 and the fixed side crushing blade 6 easily bite into the crushed object S. That is, in the trailing edge side cutting edge 5a, the virtual tangential line L ₅ in the rear edge of the contact portion Q ₅ of the small arcuate edge portion 5a ₁ (rear edge portion 5a ₂ side) - set L ₅ [FIG. 8 (A) reference〕. Then, when the small circular arc cutting edge 5 a ₁ of the movable crushing blade 5 bites into the object to be crushed S, the angle between the virtual tangent line L ₅ -L ₅ and the surface of the object to be crushed S of trailing edge 5a theta ₅ Shows the ease of biting. That is, in FIG. 8 (A), the angle θ ₅ formed by the virtual tangent line L ₅ -L ₅ and the surface of the crushed object S is large, which means that the trailing edge side cutting edge 5 a of the movable crushing blade 5 is The angle when biting into the crushed material S becomes large. As a result, the trailing edge side cutting edge 5a can bite into the crushed object S more sharply at a sharp angle. Further, the resistance of the entire movable side crushing blade 5 in the direction of biting into the crushed object S can be reduced, and the crushing work efficiency can be improved.

【００３２】さらに、可動側破砕刃５が被破砕物Ｓに食い込みが進行するにしたがって、被破砕物Ｓの表面位置の後縁側刃先５ａの露出箇所での仮想接線Ｌ₅−Ｌ₅と被破砕物Ｓの表面とのなす角θ₅がさらに大きくなる〔図９（Ａ）参照〕。そして、可動側破砕刃５の被破砕物Ｓへの食い込んだ部分に対して、被破砕物Ｓ側から、その面方向における抵抗は、大きく作用し、これによって、可動側破砕刃５が被破砕物Ｓの破砕面の面方向に滑り、破砕作業を妨げる要因を排除し、且つ集中的な荷重にて破砕できる。Further, as the movable side crushing blade 5 bites into the crushed object S, the virtual tangent line L ₅ -L ₅ and the crushed line at the exposed position of the trailing edge side blade edge 5 a on the surface position of the crushed object S The angle θ ₅ formed by the surface of the crushed object S is further increased [see FIG. 9 (A)]. Then, the resistance in the surface direction from the crushed object S side to the part of the movable crushing blade 5 that bites into the crushed object S is large, whereby the movable crushing blade 5 crushes the crushed object S. It is possible to eliminate the factor that slips in the surface direction of the crushing surface of the object S and interferes with the crushing work, and to crush with a concentrated load.

【００３３】図９（Ａ）は、可動側破砕刃５が被破砕物Ｓの表面よりある程度の深さまで食い込んだときの状態を示すものであり、可動側破砕刃５の後縁側刃先５ａにおいて被破砕物Ｓ表面との交わる部分の仮想接線Ｌ₅−Ｌ₅とその被破砕物Ｓの表面とのなす角θ₅₀は、一層，直角に近づき、θ₅₀＞θ₅となる。これは、可動側破砕刃５が被破砕物Ｓに食い込むほどに仮想接線Ｌ₅−Ｌ₅と被破砕物Ｓの表面とのなす角が大きくなり、即ち、後縁側刃先５ａの被破砕物Ｓへの食い込み角度が大きくなることを示している。FIG. 9 (A) shows a state in which the movable side crushing blade 5 has penetrated to a certain depth from the surface of the crushed object S, and the movable side crushing blade 5 has a trailing edge side cutting edge 5 a. The angle θ ₅₀ formed by the imaginary tangent line L ₅ -L _{5 at} the intersection with the surface of the crushed object S and the surface of the crushed object S becomes closer to a right angle and θ ₅₀ > θ ₅ is satisfied. This is because as the movable side crushing blade 5 bites into the crushed object S, the angle formed by the virtual tangent line L ₅ -L ₅ and the surface of the crushed object S increases, that is, the crushed object of the trailing edge side cutting edge 5 a. It shows that the bite into S becomes larger.

【００３４】これに対して、従来タイプの算盤珠状の破砕刃の装着によるものでは、図１７に示すように、破砕刃の後縁側の当接部Ｑ₅'付近の仮想接線Ｌ₅'−Ｌ₅'と被破砕物Ｓの表面とのなす角θ₅'は、微小角度で比較的小さくなる。即ち、被破砕物Ｓへの食い込み角度が浅くなり、その分だけ被破砕物Ｓを破砕する際に前方に滑りやすくなり、且つ可動側破砕刃５の破砕する断面積も分布荷重となり、大きな動力が必要となる。このために、特に固い被破砕物Ｓには不利である。On the other hand, in the case where the conventional type of abacus crushing blade is attached, as shown in FIG. 17, the virtual tangent line L ₅ ′ -in the vicinity of the contact portion Q ₅ ′ on the trailing edge side of the crushing blade. The angle θ ₅ ′ formed between L ₅ ′ and the surface of the crushed object S is relatively small at a minute angle. That is, the biting angle into the crushed object S becomes shallower, and when crushing the crushed object S, it becomes easier to slide forward, and the crushing cross-sectional area of the movable-side crushing blade 5 also becomes a distributed load, which causes a large movement. Power is needed. For this reason, it is disadvantageous for the particularly hard crushed object S.

【００３５】このように、本考案では、被破砕物Ｓの破砕は可動側破砕刃５の当接部Ｑ₅が点接触であるがゆえに瞬間的に広い範囲の破砕を行うものではないが、特に固い被破砕物Ｓの破砕では、破砕の初期段階に当接部Ｑ₅が点接触であるために破砕力Ｆが当接部Ｑ₅に集中し、固い被破砕物Ｓの破砕を行うものである。As described above, in the present invention, the crushing of the crushed object S does not instantaneously crush a wide range because the contact portion Q ₅ of the movable-side crushing blade ₅ is a point contact. Particularly in the crushing of the hard crushable object S, the crushing force F is concentrated on the contacting part Q ₅ because the contact part Q ₅ is point contact at the initial stage of crushing, and the hard crushable object S is crushed. Is.

【００３６】この仮想接線による説明は、固定側破砕刃６にも適用される。即ち、後縁側刃先６ａで、前記小円弧刃先部６ａ₁ の当接部Ｑ₆の後縁側（後端刃先部６ａ₂ 側）における仮想接線Ｌ₆−Ｌ₆を設定した〔図８（Ｂ）参照〕。そして、仮想接線Ｌ₆−Ｌ₆と被破砕物Ｓの表面とのなす角θ₆も大きく、後縁側刃先６ａが被破砕物Ｓに食い込むときの角度が大きくなり、これによって、固定側破砕刃６の被破砕物Ｓへの食い込み方向における抵抗をより一層，小さくすることができ、可動側破砕刃５と同様に破砕作業の効率を向上させることができる〔図９（Ｂ）参照〕。The description using the virtual tangent lines also applies to the stationary-side crushing blade 6. That is, in the trailing edge side blade edge 6a, the small contact portion of the arcuate cutting edge 6a ₁ sets the virtual tangential line L ₆ -L ₆ in edge (rear edge portion 6a ₂ side) after Q ₆ [FIG. 8 (B )reference〕. The angle θ ₆ between the imaginary tangent line L ₆ -L ₆ and the surface of the crushed object S is also large, and the angle when the trailing edge side cutting edge 6a bites into the crushed object S is large, which results in the fixed side crushed. The resistance of the blade 6 in the direction of biting into the crushed object S can be further reduced, and the efficiency of crushing work can be improved similarly to the movable side crushing blade 5 [see FIG. 9 (B)].

【００３７】さらに、可動側破砕刃５の場合と同様に、固定側破砕刃６に対しても、被破砕物Ｓへの食い込んだ箇所に破砕面の面方向から受ける抵抗が大きくなり、これによって、固定側破砕刃６が被破砕物Ｓの破砕面の面方向に対して滑りにくくなり、且つ集中的な荷重にて破砕できる。その固定側破砕刃６が被破砕物Ｓの表面よりある程度の深さまで食い込んだときにも、可動側破砕刃５の場合と同様に、後縁側刃先６ａにおいて被破砕物Ｓ表面との交わる部分の仮想接線Ｌ₆−Ｌ₆に対する角θ₆₀は一層直角に近づき、θ₆₀＞θ₆となり、さらに被破砕物Ｓの食い込み箇所から受ける抵抗が大きくなり、滑りにくく、集中荷重にて破砕作業ができるものであり、破砕作業を容易にならしめるものである。Further, similarly to the case of the movable side crushing blade 5, the fixed side crushing blade 6 also receives a large resistance from the surface direction of the crushing surface to the part that bites into the object S to be crushed. Therefore, the fixed-side crushing blade 6 is less likely to slip in the surface direction of the crushing surface of the crushed object S, and crushing can be performed with a concentrated load. Even when the fixed-side crushing blade 6 digs into the surface of the crushed object S to a certain depth, as in the case of the movable-side crushable blade 5, the portion where the surface of the crushed object S intersects at the trailing edge side cutting edge 6a. The angle θ ₆₀ with respect to the virtual tangent line L ₆ -L ₆ becomes closer to a right angle, and θ ₆₀ > θ ₆ , and the resistance received from the bite point of the crushed object S becomes large, making it difficult to slip and concentrating load. The crushing work can be performed easily, and the crushing work can be performed easily.

【００３８】さらに、滑りによる破砕理論を別の観点より詳述してみると、従来タイプの破砕機にて被破砕物Ｓを破砕する際に、破砕力の水平分力が可動顎と被破砕物Ｓとの間に滑りを生じせしめ、そのために破砕効率を低下させることがある。これに対して、本考案においても可動側破砕刃５は、被破砕物Ｓを破砕するときに、破砕力Ｆは、被破砕物Ｓの表面に対して水平分力Ｆh₅と垂直分力Ｆv₅とを生じ、垂直分力Ｆv₅は破砕の役割をなすが、水平分力Ｆh₅は被破砕物Ｓを水平方向に逃がす力となる〔図１０（Ａ）参照〕。Further, when the crushing theory by slippage is described in detail from another viewpoint, when crushing the object S to be crushed by a conventional type crusher, the horizontal component of the crushing force causes the movable jaw and the crushing target to crush. Sliding may occur between the product S and the product S, which may reduce the crushing efficiency. On the other hand, also in the present invention, when the movable side crushing blade 5 crushes the crushed object S, the crushing force F is the horizontal component force Fh ₅ and the vertical component force with respect to the surface of the crushed object S. Fv ₅ and the vertical component force Fv ₅ play a role of crushing, but the horizontal component force Fh ₅ becomes a force to escape the crushed object S in the horizontal direction (see FIG. 10 (A)).

【００３９】しかし、水平分力Ｆh₅が作用するのと略同時に、可動側破砕刃５の小円弧刃先部５ａ₁ の当接部Ｑ₅には集中的な垂直分力Ｆv₅が作用し、小円弧刃先部５ａ₁ が被破砕物Ｓ表面に僅かに食い込むので、その食い込み箇所にて小円弧刃先部５ａ₁ 部分に水平分力Ｆh₅に対抗する抵抗力Ｆr₅が働き、被破砕物Ｓを破砕するときの逃げを防止する〔図１０（Ｃ）参照〕。However, substantially at the same time that the horizontal component force Fh ₅ acts, a concentrated vertical component force Fv ₅ acts on the contact portion Q ₅ of the small arc edge 5a ₁ of the movable side crushing blade 5, since small circular arc cutting edge 5a ₁ bites slightly into the crush material S surface acts resistant Fr ₅ against horizontal force Fh ₅ the small arcuate edge portion 5 a ₁ part in its biting point, the crush material When S is crushed, it prevents the escape of air [see Fig. 10 (C)].

【００４０】固定側破砕刃６についても、可動側破砕刃５と同様の働きをなすものである。即ち、固定側破砕刃６は、被破砕物Ｓを破砕するときに、破砕力Ｆは、被破砕物Ｓの表面に対して水平分力Ｆh₆と垂直分力Ｆv₆を生じ、前述した可動側破砕刃５による水平分力Ｆh₅と垂直分力Ｆv₅の働きと同じように、垂直分力Ｆv₆は破砕の役割をなすが、水平分力Ｆh₆は被破砕物Ｓを水平方向に逃がす力となる。その水平分力Ｆh₆に対抗して抵抗力Ｆr₆が働き、被破砕物Ｓを破砕するときの逃げを防止することができるものである〔図１０（Ｂ）参照〕。The fixed-side crushing blade 6 also has the same function as the movable-side crushing blade 5. That is, when the fixed-side crushing blade 6 crushes the object S to be crushed, the crushing force F generates a horizontal component force Fh ₆ and a vertical component force Fv ₆ with respect to the surface of the object S to be crushed. as with horizontal force Fh ₅ by side crushing blades 5 and the action of the vertical component force Fv _5, although the vertical component force Fv ₆ forms a role of crushing, the horizontal force Fh ₆ in the horizontal direction to be crushed S It becomes the power to escape. The resistance Fr ₆ works against the horizontal force Fh ₆ to prevent the escape when the crushed object S is crushed [see FIG. 10 (B)].

【００４１】図４，図５は、可動側破砕刃５と固定側破砕刃６が被破砕物Ｓを破砕する状態を示したものである。まず、固定顎本体２と可動顎本体３とで構造物を解体して生じたコンクリート構造材等の被破砕物Ｓをくわえることで可動側破砕刃５と固定側破砕刃６とが被破砕物Ｓの表面に当接する。このとき、図４に示すように最初に小円弧刃先部５ａ₁ ，６ａ₁ の範囲が被破砕物Ｓに表面に当接する。FIGS. 4 and 5 show a state in which the movable crushing blade 5 and the fixed crushing blade 6 crush the object S to be crushed. First, the movable-side crushing blade 5 and the fixed-side crushing blade 6 are crushed by holding a crushable object S such as a concrete structural material generated by disassembling the structure with the fixed jaw main body 2 and the movable jaw main body 3. It contacts the surface of the object S. At this time, as shown in FIG. 4, the area of the small circular arc edge portions 5a ₁ and 6a _{1 first} comes into contact with the surface of the object to be crushed S.

【００４２】そして、被破砕物Ｓに対する可動側破砕刃５と固定側破砕刃６とのそれぞれの当接部Ｑ₅ ，Ｑ₆ とすると接触状態は、点接触状態（略点接触状態を含む）となるので、可動側破砕刃５，固定側破砕刃６によるコンクリート構造材等の被破砕物Ｓへの初期段階では、集中荷重となり、表面の固いコンクリート構造材等の被破砕物Ｓであっても当接部Ｑ₅ ，Ｑ₆ を中心として食い込む（図５参照）。このように、固定顎本体２と可動顎本体３とで被破砕物Ｓを挟み、固定顎本体２に対して可動顎本体３を閉じたときに可動側破砕刃５と固定側破砕刃６とが被破砕物Ｓに食い込むことで被破砕物Ｓが固定顎本体２と可動顎本体３とから滑り落ちることを防止しつつ、破砕作業を行うことができる。When the movable side crushing blade 5 and the fixed side crushing blade 6 contact the contacting portions Q ₅ and Q ₆ with respect to the object S, the contact state is a point contact state (including a substantially point contact state). Therefore, at the initial stage of the movable-side crushing blade 5 and the fixed-side crushing blade 6 to the crushed object S such as a concrete structure material, a concentrated load is applied, and the crushed object S such as a concrete structure material with a hard surface is crushed. However, the contact portions Q ₅ and Q ₆ are bited into the center (see FIG. 5). Thus, when the object S to be crushed is sandwiched between the fixed jaw main body 2 and the movable jaw main body 3 and the movable jaw main body 3 is closed with respect to the fixed jaw main body 2, the movable side crushing blade 5 and the fixed side crushing blade 6 are It is possible to perform the crushing work while preventing the crushable object S from slipping off from the fixed jaw main body 2 and the movable jaw main body 3 by biting into the crushable object S.

【００４３】また、図１１では、被破砕物Ｓを断面矩形状の柱状体とし、その直角なる角部において、隣合う両壁面を可動側破砕刃５と固定側破砕刃６とで破砕しようとするものである。この場合には、可動側破砕刃５の小円弧刃先部５ａ₁ と固定側破砕刃６の小円弧刃先部６ａ₁ とが両壁面に当接し、それぞれの当接部Ｑ₅,Ｑ₆の箇所から破砕が行われる〔図１２（Ａ）及び（Ｂ）参照〕。Further, in FIG. 11, the object S to be crushed is formed into a columnar body having a rectangular cross section, and at adjacent corners, both adjacent wall surfaces are attempted to be crushed by the movable side crushing blade 5 and the fixed side crushing blade 6. It is a sipping thing. In this case, a small circular arc cutting edge 6a ₁ of the cracking blades 6 fracture and the small arcuate edge portion 5a ₁ of the movable crushing blade 5 fixed-side contacts the both wall surfaces, the respective contact portions Q _5, Q ₆ Crushing is performed from the point [see FIGS. 12 (A) and 12 (B)].

【００４４】その小円弧刃先部５ａ₁ ，小円弧刃先部６ａ₁ と被破砕物Ｓの隣合う両壁面における当接部Ｑ₅,Ｑ₆は、直角に隣合う両壁面に存在している。そのために、両壁面は、図１１及び図１２等に示すように、当接部Ｑ₅,Ｑ₆に対して急角度に傾斜した面にとなり、可動側破砕刃５と固定側破砕刃６とは両壁面に対して滑りを生じ易い状態となる。The abutting portions Q ₅ and Q ₆ on the adjoining wall surfaces of the small arcuate blade tip portion 5a ₁ , the small arcuate blade tip portion 6a ₁ and the crushed object S are present on both adjoining wall surfaces at a right angle. . Therefore, as shown in FIG. 11 and FIG. 12 and the like, both wall surfaces become surfaces inclined at a steep angle with respect to the contact portions Q ₅ , Q ₆ , and the movable side crushing blade 5 and the fixed side crushing blade 6 are formed. And are in a state where slippage easily occurs on both wall surfaces.

【００４５】しかし、可動側破砕刃５における仮想接線Ｌ₅−Ｌ₅と壁面となす角θ₅及び固定側破砕刃６における仮想接線Ｌ₆−Ｌ₆と壁面とのなす両角θ₆がともに大きく、従って食い込み角度も大きくなることにより、可動側破砕刃５と固定側破砕刃６とが傾斜した両壁面に対して滑りを生じる前に、その壁面に食い込み、破砕を行うことができる（図１３参照）。[0045] However, large corners theta ₆ formed between the virtual tangent line L ₆ -L ₆ and the wall in the virtual tangential line L ₅ -L ₅ and the wall surface and the angle theta ₅ and the fixed-side crushing blade 6 of the movable-side crushing blade 5 are both By increasing the biting angle and therefore the biting angle, the movable side crushing blade 5 and the fixed side crushing blade 6 can bite and crush the wall surfaces before they slip on both inclined wall surfaces. (See Figure 13).

【００４６】さらに、その傾斜した両壁面に対して、可動側破砕刃５と固定側破砕刃６が破砕時と同時に滑りが生じたとした場合でも、常に小円弧刃先部５ａ₁ 及び小円弧刃先部６ａ₁ が当接しているので、小円弧刃先部５ａ₁ 及び小円弧刃先部６ａ₁ が滑りながらも傾斜した両壁面に食い込み始め、一旦、食い込み始めると前記仮想接線Ｌ₅−Ｌ₅及びＬ₆−Ｌ₆と両壁面とのなす角θ₅，θ₆が次第に大きくなり、被破砕物Ｓの可動側破砕刃５及び固定側破砕刃６に対する抵抗力が大きくなり、該抵抗力により滑りは停止し、被破砕物Ｓを破砕させることができる（図１４参照）。Further, even if the movable side crushing blade 5 and the fixed side crushing blade 6 slip at the same time when the movable side crushing blade 5 and the fixed side crushing blade slip on both of the inclined wall surfaces, the small circular arc blade edge portion 5a ₁ and the small circular arc blade edge are always kept. Since the portion 6a ₁ is in contact with the small arcuate blade tip portion 5a ₁ and the small arcuate blade tip portion 6a ₁ begin to bite into both inclined wall surfaces while sliding, and once the bite begins, the virtual tangent line L ₅ -L ₅ and The angles θ ₅ and θ ₆ formed by L ₆ -L ₆ and both wall surfaces gradually increase, and the resistance force of the crushed object S to the movable side crushing blade 5 and the fixed side crushing blade 6 increases, and the sliding force is caused by the resistance force. Is stopped, and the crushed object S can be crushed (see FIG. 14).

【００４７】[0047]

【考案の効果】[Effect of the invention]

請求項１の考案においては、固定顎本体２と、該固定顎本体２に対して開閉する可動顎本体３と、前記固定顎本体２及び可動顎本体３とを設けた破砕機外筺１と、小円弧刃先部５ａ₁ を介して略直角状とした後縁側刃先５ａと，略全体を大円弧状刃先部とした前縁側刃先５ｂとからなり，後縁側刃先５ａを前記可動顎本体３の内方側に向けて設けた半割り算盤珠状の可動側破砕刃５と、前記固定顎本体２の先端に設けた半割り算盤珠状の固定側破砕刃６とからなる破砕機としたことにより、まず第１に特に固いコンクリート構造材等の被破砕物Ｓの破砕に好適であり、破砕作業時に固定顎本体２と可動顎本体３とでくわえたコンクリート構造材等の被破砕物Ｓを滑ることなく確実に破砕することができるし、第２にその構造は極めて簡単である等の種々の効果を奏する。In the invention of claim 1, a crusher outer casing 1 provided with a fixed jaw body 2, a movable jaw body 3 that opens and closes with respect to the fixed jaw body 2, the fixed jaw body 2 and the movable jaw body 3. When the edge side cutting edge 5a after a substantially right-angled through the small circular arc cutting edge 5a _1, becomes substantially the entire and a large arc-shaped cutting edge was a leading edge side cutting edge 5b, the trailing edge 5a the movable jaw body A crushing machine composed of a half-divided disc traverse-shaped movable-side crushing blade 5 provided toward the inner side of 3 and a half-division disc-shaped fixed-side crushing blade 6 provided at the tip of the fixed jaw body 2. As a result, first of all, it is particularly suitable for crushing the object S to be crushed such as a hard concrete structure material, and the concrete structure material and the like held by the fixed jaw main body 2 and the movable jaw main body 3 during the crushing work. The object S to be crushed can be crushed without slipping, and secondly, the structure is extremely simple. Exhibits various effects etc. is.

【００４８】これら複数の効果を詳述すると、可動顎本体３には可動側破砕刃５を、また固定顎本体２に固定側破砕刃６をそれぞれ設けたので、コンクリート構造材等の被破砕物Ｓを破砕するときには、可動側破砕刃５と固定側破砕刃６の両方が同時にコンクリート構造材等の被破砕物Ｓに食い込み、コンクリート構造材等の被破砕物Ｓの両面より同時にヒビを入れることができ、極めて迅速なる破砕を行うことができる。To describe these effects in detail, since the movable jaw main body 3 is provided with the movable side crushing blade 5 and the fixed jaw main body 2 is provided with the fixed side crushing blade 6, the crushing of concrete structural material or the like is performed. When crushing the object S, both the movable crushing blade 5 and the fixed crushing blade 6 bite into the crushed object S such as concrete structural material at the same time, and cracks are simultaneously applied from both sides of the crushed object S such as concrete structural material. It is possible to perform extremely rapid crushing.

【００４９】特に、可動側破砕刃５については、後縁側刃先５ａは、小円弧刃先部５ａ₁ を介して略直角状としたものであるから、破砕のためにコンクリート構造材等の被破砕物Ｓの表面に当接した状態は、主に小円弧刃先部５ａ₁ の当接となり、該小円弧刃先部５ａ₁ が極めて小半径であるがゆえにコンクリート構造材等の被破砕物Ｓとの接触状態は、点接触（略点接触を含む）となる。Particularly, regarding the movable side crushing blade 5, since the trailing edge side blade edge 5a is formed into a substantially right angle shape through the small circular arc blade edge portion 5a ₁ , a crushed object such as a concrete structural material is crushed. contact with the surface of S is mainly made abutment of small circular arc cutting edge 5a _1, contact with the crush material S of but minor arc cutting edge 5a ₁ is very small radius because concrete structural members or the like The state is point contact (including substantially point contact).

【００５０】そこで、可動側破砕刃５によるコンクリート構造材等の被破砕物Ｓへの破砕の初期段階では小円弧刃先部５ａ₁ 部分のコンクリート構造材等の被破砕物Ｓへの当接部による集中的な破砕力を得ることができる。即ち、小円弧刃先部５ａ₁ のコンクリート構造材等の被破砕物Ｓとの当接部には破砕力が分散することなく、略一箇所に集中することにより、表面の固いコンクリート構造材等の被破砕物Ｓであっても可動側破砕刃５を良好に食い込ませることができるものである。Therefore, in the initial stage of the crushing of the concrete structure material or the like to be crushed by the movable side crushing blade 5, the small arc blade tip portion 5a _{1 is} contacted by the contact portion of the concrete structure material or the like to the crushable object S. You can obtain intensive crushing power. That is, the crushing force does not disperse at the contact portion of the small arc blade edge portion 5a _{1 with} the crushed object S such as the concrete structure material, but concentrates at approximately one place, so that the concrete structure material with a hard surface Even the object S to be crushed can satisfactorily bite the movable crushing blade 5.

【００５１】また、可動側破砕刃５の後縁側刃先５ａで、前記小円弧刃先部５ａ₁ のコンクリート構造材等の被破砕物Ｓとの当接部における食い込むときの食込み角度を大きくすることができる。即ち、可動側破砕刃５は楔状となってコンクリート構造材等の被破砕物Ｓに滑りにくくして食い込むこととなる。それゆえに、破砕力が集中的に作用することと、該集中箇所が滑りにくくなることとが相乗的に作用し、且つ固定顎本体２側では固定側破砕刃６が被破砕物Ｓを可動側破砕刃５の反対側から食い込もうとするので、被破砕物Ｓの破砕作業を極めて高効率にできる最大の利点がある。Further, at the trailing edge side blade edge 5a of the movable side crushing blade 5, the biting angle at the time of biting at the contact portion of the small circular arc blade edge portion 5a _{1 with} the crushed object S such as concrete structure material is increased. be able to. That is, the movable-side crushing blade 5 becomes wedge-shaped and bites into the crushed object S such as a concrete structure material without slipping. Therefore, the crushing force concentratedly acts and the concentrated portion becomes less slippery, and on the fixed jaw body 2 side, the fixed crushing blade 6 moves the crushed object S to the movable side. Since it tries to bite from the side opposite to the crushing blade 5, it has the greatest advantage that the crushing operation of the object S to be crushed can be made extremely highly efficient.

【００５２】次に、請求項２の考案は、請求項１において、前記固定側破砕刃６は、前記可動側破砕刃５と略同等形状とし、固定側破砕刃６の後縁側刃先６ａが固定顎本体２の内方側に向けてなる破砕機としたことにより、その固定側破砕刃６の後縁側刃先６ａが固定顎本体２の内方側に向いており、即ち、可動側破砕刃５と同様の方向に装着しているので、固定顎本体２と可動顎本体３とで挟んだ被破砕物Ｓの破砕を行う場合に、可動側破砕刃５と固定側破砕刃６とが閉じる方向に移動すると、被破砕物Ｓを固定顎本体２と可動顎本体３の内方側、即ち可動顎枢支部Ｐ₁ 方向に送り込むがごとき動作をなし、確実なる被破砕物Ｓの破砕を行うことができる。Next, in the invention of claim 2, in claim 1, the fixed-side crushing blade 6 has substantially the same shape as the movable-side crushing blade 5, and the fixed-side crushing blade 6 has a trailing edge side cutting edge 6 a. Since the crushing machine is directed toward the inner side of the fixed jaw body 2, the trailing edge side 6a of the fixed side crushing blade 6 faces the inner side of the fixed jaw body 2, that is, the movable side crushing blade. Since it is mounted in the same direction as in 5, the movable crushing blade 5 and the fixed crushing blade 6 are closed when the crushed object S sandwiched between the fixed jaw main body 2 and the movable jaw main body 3 is crushed. When moved in the direction, the object to be crushed S is sent inward of the fixed jaw main body 2 and the movable jaw main body 3, that is, in the direction of the movable jaw pivot support P _1, and the operation is performed to ensure reliable crushing of the object S to be crushed. It can be carried out.

【００５３】次に、請求項３の考案は、請求項２において、前記固定側破砕刃６は、前記可動側破砕刃５と略同等形状とし、固定側破砕刃６の後縁側刃先６ａが固定顎本体２の内方側に向け、且つ固定側破砕刃６は、側面より見て可動側破砕刃５より小さくしてなる破砕機としたことにより、被破砕物Ｓの破砕において、まず固定側破砕刃６が被破砕物Ｓに対して比較的すみやかに食い込むことができ、被破砕物Ｓを確実に固定顎本体２側で固定するとともに、大型の可動側破砕刃５が強力に被破砕物Ｓを破砕し、無駄なく確実なる破砕作業を行うことができる。Next, in the invention of claim 3, in claim 2, the fixed side crushing blade 6 has substantially the same shape as the movable side crushing blade 5, and the fixed side crushing blade 6 has a trailing edge side cutting edge 6 a. By fixing the crushing blade 6 toward the inner side of the fixed jaw main body 2 and the fixed crushing blade 6 is smaller than the movable crushing blade 5 when viewed from the side, the crushing object S is first fixed in crushing. The side crushing blade 6 can bite into the crushed object S relatively quickly, and the crushed object S is securely fixed on the fixed jaw body 2 side, and the large movable crushing blade 5 strongly crushes The object S can be crushed and a reliable crushing operation can be performed without waste.

【００５４】次に、請求項４の考案は、請求項１３において、前記可動側破砕刃５と固定側破砕刃６とは、その位置を前後方向に適宜にずらして設けてなる破砕機としたことにより、可動側破砕刃５と固定側破砕刃６とは、位置的なずれにより、固定顎本体２と可動顎本体３とを十分に開いたときには、可動側破砕刃５と固定側破砕刃６との間隔Ｈ₁を、互いに位置をずらさない場合の可動側破砕刃５と固定側破砕刃６との間隔Ｈ₂に比較して大きくすることができる〔図１６（Ａ）及び（Ｂ）参照〕。Next, the invention of claim 4 is the crusher according to claim 13, wherein the movable side crushing blade 5 and the fixed side crushing blade 6 are provided with their positions appropriately shifted in the front-rear direction. As a result, when the movable jaw crushing blade 5 and the fixed jaw crushing blade 6 are sufficiently opened due to the positional displacement, the movable jaw crushing blade 5 and the fixed jaw crushing blade 3 are opened. The distance H ₁ to the blade 6 can be made larger than the distance H ₂ to the movable side crushing blade 5 and the fixed side crushing blade 6 when the positions are not displaced from each other [Fig. 16 (A) and ( B)]].

【００５５】これによってより大きな被破砕物Ｓをくわえて、これを破砕することができる。また、可動側破砕刃５と固定側破砕刃６との位置的なずれは、互いに位置をずらさない場合に比較して、固定顎本体２と可動顎本体３とを十分に閉じることができ、これによって、さらにきめの細かい破砕ができる。As a result, a larger object to be crushed S can be added and crushed. Further, the positional deviation between the movable side crushing blade 5 and the fixed side crushing blade 6 may sufficiently close the fixed jaw body 2 and the movable jaw body 3 as compared with the case where the positions thereof are not displaced from each other. This allows for finer crushing.

【００５６】次に、請求項５の考案は、請求項４において、前記固定側破砕刃６は可動側破砕刃５より外方に位置してなる破砕機としたことにより、固定側破砕刃６の瞬間的に大きな破砕力を発生させることができる。Next, the invention of claim 5 is the fixed side crushing blade according to claim 4, wherein the fixed side crushing blade 6 is a crusher located outside the movable side crushing blade 5. A moment of 6 can generate a large crushing force.

【００５７】即ち、可動側破砕刃５と固定側破砕刃６とが被破砕物Ｓに及ぼす破砕力Ｆ，Ｆは向きが異なるが大きさは等しいものであり、且つ、固定側破砕刃６が可動側破砕刃５よりも外方に位置しているので、可動顎枢支部Ｐ₁ から固定側破砕刃６の位置までの距離Ｋ₆が、可動顎枢支部Ｐ₁ から可動側破砕刃５の位置までの距離Ｋ₅より大きく、Ｋ₅＞Ｋ₆となる〔図１５（Ａ）参照〕。That is, the crushing forces F and F exerted by the movable side crushing blade 5 and the fixed side crushing blade 6 on the object S to be crushed have different directions but the same size, and the fixed side crushing blade 6 is because are located outward than the cracking blades 5 fracture movable, movable Agokururu branch distance K ₆ from P ₁ to the position of the fixed-side crushing blade 6, the movable-side crushing blade 5 from the movable Agokururu branch P ₁ Is larger than the distance K ₅ and K ₅ > K ₆ [see FIG. 15 (A)].

【００５８】これによって、被破砕物Ｓを破砕するための、可動側破砕刃５と固定側破砕刃６による力のモーメントは、それぞれＭ₅＝Ｋ₅×Ｆ及びＭ₆＝Ｋ₆×Ｆとなり、従って、モーメントＭ₆＞Ｍ₅なる関係となる〔図１５（Ｂ）参照〕。これによって、被破砕物Ｓを破砕する、初期の瞬間的において、固定側破砕刃６側に大きな破砕力をかけることができる。さらに、固定側破砕刃６を可動側破砕刃５より一回り小さくすることで、被破砕物Ｓに対する食い込みも可動側破砕刃５より、僅かに早くなり、被破砕物Ｓの破砕を安定的に行うことができる。As a result, the moments of force by the movable side crushing blade 5 and the fixed side crushing blade 6 for crushing the crushed object S are M ₅ = K ₅ × F and M ₆ = K ₆ × F, respectively. Therefore, the relation of moment M ₆ > M ₅ is established [see FIG. 15 (B)]. As a result, a large crushing force can be applied to the fixed-side crushing blade 6 side in the initial moment when the crushed object S is crushed. Further, by making the fixed-side crushing blade 6 one size smaller than the movable-side crushing blade 5, biting into the crushed object S is slightly faster than that of the movable-side crushing blade 5, and crushing of the crushed object S is stable. Can be done.

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

【図１】本考案の要部斜視図FIG. 1 is a perspective view of a main part of the present invention.

【図２】本考案の側面図FIG. 2 is a side view of the present invention.

【図３】（Ａ）は可動顎本体側の可動側破砕刃装着箇所
の側面図（Ｂ）は固定顎本体側の固定側破砕刃装着箇所の側面図[FIG. 3] (A) is a side view of a movable crushing blade mounting location on the movable jaw body side. (B) is a side view of a fixed crushing blade mounting location on the fixed jaw main body side.

【図４】固定顎本体と可動顎本体とで被破砕物をくわえ
た状態の側面図FIG. 4 is a side view showing a state in which a crushed object is held by a fixed jaw body and a movable jaw body.

【図５】固定顎本体と可動顎本体とで被破砕物をくわえ
て破砕作業を行っている状態を示す拡大側面図FIG. 5 is an enlarged side view showing a state in which a crushing work is performed by holding a crushed object between a fixed jaw body and a movable jaw body.

【図６】（Ａ）は固定側破砕刃の直角部分を外側にした
状態の側面図（Ｂ）は固定側破砕刃の直角部分を外側にした状態の要
部側面図FIG. 6 (A) is a side view of the fixed-side crushing blade with the right-angled portion on the outside. FIG. 6 (B) is a side-view of the main part with the fixed-side crushing blade on the right-angled side.

【図７】（Ａ）は可動側破砕刃の一部断面にした斜視図（Ｂ）は可動側破砕刃と固定側破砕刃とを同等の大きさ
とした実施の形態の側面図FIG. 7 (A) is a perspective view showing a partial cross section of the movable side crushing blade. (B) is a side view of an embodiment in which the movable side crushing blade and the fixed side crushing blade have the same size.

【図８】（Ａ）は可動側破砕刃の破砕作用を示す拡大側
面図（Ｂ）は固定側破砕刃の破砕作用を示す拡大側面図FIG. 8 (A) is an enlarged side view showing the crushing action of the movable side crushing blade. (B) is an enlarged side view showing the crushing action of the fixed side crushing blade.

【図９】（Ａ）は可動側破砕刃が被破砕物に少し食い込
んだ状態を示す要部側面図（Ｂ）は固定側破砕刃が被破砕物に少し食い込んだ状態
を示す要部側面図FIG. 9 (A) is a side view of an essential part showing a state where the movable side crushing blade bites into the crushed object, and FIG. 9 (B) is a side view of an essential part showing the fixed side crushing blade slightly biting into the crushed object.

【図１０】（Ａ）は可動側破砕刃にて被破砕物を破砕す
るときに、可動側破砕刃と被破砕物とが滑りにくいこと
を示す作用図（Ｂ）は固定側破砕刃にて被破砕物を破砕するときに、
固定側破砕刃と被破砕物とが滑りにくいことを示す作用
図（Ｃ）は破砕刃にて被破砕物を破砕するとき、破砕刃と
被破砕物とが滑りにくいことを示す作用図FIG. 10 (A) is an action diagram showing that the movable side crushing blade and the crushed object are less likely to slip when the crushable object is crushed by the movable side crushing blade. When crushing an object to be crushed,
The action diagram showing that the fixed side crushing blade and the crushable object are difficult to slip (C) is an action diagram showing that the crushing blade and the crushable object are difficult to slip when crushing the crushable object with the crushing blade

【図１１】断面矩形状の被破砕物を角箇所の隣合う両壁
面から破砕しようとする破砕機の側面図FIG. 11 is a side view of a crusher that crushes an object to be crushed having a rectangular cross section from both wall surfaces adjacent to each other at corners

【図１２】断面矩形状の被破砕物を破砕する初期段階を
示す拡大略示図FIG. 12 is an enlarged schematic view showing an initial stage of crushing an object to be crushed having a rectangular cross section.

【図１３】断面矩形状の被破砕物に対して可動側破砕刃
と固定側破砕刃が食い込んだ状態を示す拡大略示図FIG. 13 is an enlarged schematic view showing a state in which a movable side crushing blade and a fixed side crushing blade bite into an object to be crushed having a rectangular cross section.

【図１４】断面矩形状の被破砕物に対して可動側破砕刃
と固定側破砕刃が滑りながら食い込む状態を示す拡大略
示図FIG. 14 is an enlarged schematic view showing a state in which a movable side crushing blade and a fixed side crushing blade bite into an object to be crushed having a rectangular cross section while sliding.

【図１５】（Ａ）は可動側破砕刃にて被破砕物を破砕す
るときの破砕力のかかりぐあいを示す破砕機の要部側面
図（Ｂ）は可動側破砕刃にて被破砕物を破砕するときの破
砕力のかかりぐあいを示す作用図FIG. 15 (A) is a side view of the main part of the crusher showing the crushing force exerted by the movable crushing blade when crushing the crushed object. Action diagram showing how the crushing force works when crushing

【図１６】（Ａ）は可動側破砕刃と固定側破砕刃とを位
置的にずらした状態での可動側破砕刃と固定側破砕刃と
の間隔を示す破砕機の側面図（Ｂ）は可動側破砕刃と固定側破砕刃とを位置的にずら
さない状態での可動側破砕刃と固定側破砕刃との間隔を
示す破砕機の側面図FIG. 16 (A) is a side view of the crusher showing a distance between the movable crushing blade and the fixed crushing blade in a state where the movable crushing blade and the fixed crushing blade are displaced from each other. Side view of the crusher showing the distance between the movable crushing blade and the fixed crushing blade in a state where the movable crushing blade and the fixed crushing blade are not displaced in position.

【図１７】従来タイプの可動側破砕刃における作用図FIG. 17: Operation diagram of conventional type movable side crushing blade

【符号の説明】[Explanation of symbols]

１…破砕機外筺２…固定顎本体３…可動顎本体５…可動側破砕刃５ａ…後縁側刃先５ａ₁…小円弧刃先部６…固定側破砕刃６ａ…後縁側刃先６ａ₁…小円弧刃先部1 ... Crusher outer casing 2 ... Fixed jaw main body 3 ... Movable jaw main body 5 ... Movable side crushing blade 5a ... Trailing edge side cutting edge 5a ₁ ... Small arc blade tip 6 ... Fixed side crushing blade 6a ... Trailing edge side cutting edge 6a ₁ ... Small circular arc Cutting edge

───────────────────────────────────────────────────── フロントページの続き (72)考案者伊藤貴光千葉市花見川区千種町314番地株式会社坂戸工作所内 (72)考案者坂戸正幸千葉市花見川区千種町314番地株式会社坂戸工作所内 (72)考案者仲田征男千葉市花見川区千種町314番地株式会社坂戸工作所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takamitsu Ito, 314 Chikusacho, Hanamigawa-ku, Chiba, Sakado Works Co., Ltd. (72) Masayuki Sakado, 314, Chikusacho, Hanamigawa-ku, Chiba, Sakado, Inc. (72) Inventor Nakao Norio 314 Chikusa-cho, Hanamigawa-ku, Chiba City Sakado Manufacturing Co., Ltd.

Claims

【実用新案登録請求の範囲】[Utility model registration claims]

【請求項１】固定顎本体と、該固定顎本体に対して開
閉する可動顎本体と、前記固定顎本体及び可動顎本体と
を設けた破砕機外筺と、小円弧刃先部を介して略直角状
とした後縁側刃先と，略全体を大円弧状刃先部とした前
縁側刃先とからなり，後縁側刃先を前記可動顎本体の内
方側に向けて設けた半割り算盤珠状の可動側破砕刃と、
前記固定顎本体の先端に設けた半割り算盤珠状の固定側
破砕刃とからなることを特徴とした破砕機。1. A fixed jaw main body, a movable jaw main body that opens and closes with respect to the fixed jaw main body, a crusher outer casing provided with the fixed jaw main body and the movable jaw main body, and a small arc blade edge portion. Half-diagonal disc-shaped movable that consists of a right-angled trailing edge and a leading edge with a large arc-shaped blade, with the trailing edge facing inward of the movable jaw body. Side crushing blade,
A crushing machine comprising a fixed-side crushing blade in the shape of a half-division board provided at the tip of the fixed jaw body.

【請求項２】固定顎本体と、該固定顎本体に対して開
閉する可動顎本体と、前記固定顎本体及び可動顎本体と
を設けた破砕機外筺と、小円弧刃先部を介して略直角状
とした後縁側刃先と，略全体を大円弧状刃先部とした前
縁側刃先とからなり，後縁側刃先を前記可動顎本体の内
方側に向けて設けた半割り算盤珠状の可動側破砕刃と、
前記固定顎本体の先端に設けた半割り算盤珠状の固定側
破砕刃とからなり、該固定側破砕刃は、前記可動側破砕
刃と略同等形状とし、固定側破砕刃の後縁側刃先が固定
顎本体の内方側に向けてなることを特徴とした破砕機。2. A fixed jaw main body, a movable jaw main body which opens and closes with respect to the fixed jaw main body, a crusher outer casing provided with the fixed jaw main body and the movable jaw main body, and a small circular arc blade edge portion. Half-diagonal disc-shaped movable that consists of a right-angled trailing edge and a leading edge with a large arc-shaped blade, with the trailing edge facing inward of the movable jaw body. Side crushing blade,
It consists of a fixed-side crushing blade in the shape of a half-divided disc that is provided at the tip of the fixed jaw body, the fixed-side crushing blade has substantially the same shape as the movable-side crushing blade, and the trailing edge side cutting edge of the fixed-side crushing blade is A crusher characterized by being directed toward the inner side of the fixed jaw body.

【請求項３】固定顎本体と、該固定顎本体に対して開
閉する可動顎本体と、前記固定顎本体及び可動顎本体と
を設けた破砕機外筺と、小円弧刃先部を介して略直角状
とした後縁側刃先と，略全体を大円弧状刃先部とした前
縁側刃先とからなり，後縁側刃先を前記可動顎本体の内
方側に向けて設けた半割り算盤珠状の可動側破砕刃と、
前記固定顎本体の先端に設けた半割り算盤珠状の固定側
破砕刃とからなり、該固定側破砕刃は、前記可動側破砕
刃と略同等形状とし、固定側破砕刃の後縁側刃先が固定
顎本体の内方側に向け、前記固定側破砕刃は、前記可動
側破砕刃と略同等形状とし、固定側破砕刃の後縁側刃先
が固定顎本体の内方側に向け、且つ固定側破砕刃は、側
面より見て可動側破砕刃より小さくしてなることを特徴
とした破砕機。3. A fixed jaw main body, a movable jaw main body that opens and closes with respect to the fixed jaw main body, a crusher outer casing provided with the fixed jaw main body and the movable jaw main body, and a small circular arc blade edge portion. Half-diagonal disc-shaped movable that consists of a right-angled trailing edge and a leading edge with a large arc-shaped blade, with the trailing edge facing inward of the movable jaw body. Side crushing blade,
It consists of a fixed-side crushing blade in the shape of a half-divided disc that is provided at the tip of the fixed jaw body, the fixed-side crushing blade has substantially the same shape as the movable-side crushing blade, and the trailing edge side cutting edge of the fixed-side crushing blade is Toward the inner side of the fixed jaw body, the fixed side crushing blade has substantially the same shape as the movable side crushing blade, and the trailing edge side edge of the fixed side crushing blade is directed to the inner side of the fixed jaw body, and the fixed side The crusher is characterized in that the crushing blade is smaller than the movable crushing blade when viewed from the side.

【請求項４】固定顎本体と、該固定顎本体に対して開
閉する可動顎本体と、前記固定顎本体及び可動顎本体と
を設けた破砕機外筺と、小円弧刃先部を介して略直角状
とした後縁側刃先と，略全体を大円弧状刃先部とした前
縁側刃先とからなり，後縁側刃先を前記可動顎本体の内
方側に向けて設けた半割り算盤珠状の可動側破砕刃と、
前記固定顎本体の先端に設けた半割り算盤珠状の固定側
破砕刃とからなり、前記可動側破砕刃と固定側破砕刃と
はその位置を前後方向に適宜にずらして設けてなること
を特徴とした破砕機。4. A fixed jaw main body, a movable jaw main body that opens and closes with respect to the fixed jaw main body, a crusher outer casing provided with the fixed jaw main body and the movable jaw main body, and a small arcuate blade portion. Half-diagonal disc-shaped movable that consists of a right-angled trailing edge and a leading edge with a large arc-shaped blade, with the trailing edge facing inward of the movable jaw body. Side crushing blade,
It comprises a fixed side crushing blade in the form of a half-divided disc that is provided at the tip of the fixed jaw body, and the movable side crushing blade and the fixed side crushing blade are provided with their positions appropriately shifted in the front-back direction. Characterized crusher.

【請求項５】固定顎本体と、該固定顎本体に対して開
閉する可動顎本体と、前記固定顎本体及び可動顎本体と
を設けた破砕機外筺と、小円弧刃先部を介して略直角状
とした後縁側刃先と，略全体を大円弧状刃先部とした前
縁側刃先とからなり，後縁側刃先を前記可動顎本体の内
方側に向けて設けた半割り算盤珠状の可動側破砕刃と、
前記固定顎本体の先端に設けた半割り算盤珠状の固定側
破砕刃とからなり、前記可動側破砕刃と固定側破砕刃と
はその位置を前後方向に適宜にずらして設けてなり、前
記固定側破砕刃は可動側破砕刃より外方に位置してなる
ことを特徴とした破砕機。5. A fixed jaw main body, a movable jaw main body that opens and closes with respect to the fixed jaw main body, a crusher outer casing provided with the fixed jaw main body and the movable jaw main body, and a small arc blade edge portion. Half-diagonal disc-shaped movable that consists of a right-angled trailing edge and a leading edge with a large arc-shaped blade, with the trailing edge facing inward of the movable jaw body. Side crushing blade,
It consists of a fixed side crushing blade in the shape of a half-divided disc provided at the tip of the fixed jaw body, and the movable side crushing blade and the fixed side crushing blade are provided with their positions appropriately shifted in the front-rear direction, The crushing machine characterized in that the fixed crushing blade is located outside the movable crushing blade.