JPH0423042B2 - - Google Patents
Info
- Publication number
- JPH0423042B2 JPH0423042B2 JP24568187A JP24568187A JPH0423042B2 JP H0423042 B2 JPH0423042 B2 JP H0423042B2 JP 24568187 A JP24568187 A JP 24568187A JP 24568187 A JP24568187 A JP 24568187A JP H0423042 B2 JPH0423042 B2 JP H0423042B2
- Authority
- JP
- Japan
- Prior art keywords
- plow
- reinforcing member
- shear pin
- hole
- rotating body
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 34
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000010008 shearing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
Description
【発明の詳細な説明】
(a) 産業上の利用分野
本発明は除雪車に装着されるプラウに関するも
ので、特に作業中にプラウ下端のカツテイングエ
ツジに異常な衝撃を受けた場合にカツテイングエ
ツジを反転回動させる安全装置の分野で利用され
るものである。[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a plow that is attached to a snowplow, and in particular, the present invention relates to a plow that is attached to a snowplow, and in particular, when the cutting edge at the lower end of the plow receives an abnormal impact during work. This is used in the field of safety devices that rotate edges in reverse.
(b) 従来の技術
従来のプラウ安全装置は実公昭55−32898号に
開示されており、プラウの前面に左右一対の雄型
継手を突出させ、更に刃先体（カツテイングエツ
ジ）と一体の雌型継手を雄型継手間にてプラウ前
面に突出させ、前記両継手間にシヤーピンを設
け、刃先体に異常な衝撃を受けた場合にはシヤー
ピンを切断して刃先体が後方回動して刃先体の破
損を防止するようになつている。(b) Conventional technology A conventional plow safety device is disclosed in Utility Model Publication No. 55-32898, in which a pair of left and right male joints protrudes from the front of the plow, and a female joint integrated with the cutting edge body. A mold joint is made to protrude to the front of the plow between the male joints, and a shear pin is provided between both joints.If the blade body receives an abnormal impact, the shear pin is cut and the blade body rotates backwards, causing the blade to close. It is designed to prevent damage to the body.
(c) 発明が解決しようとする問題点
ところが前記構造にあつては両継手がプラウ前
面に突出するため、プラウ前面の雪が両継手に当
つて排除されずに付着し、除雪作業を阻害する。
またシヤーピンの交換時には両継手に付着した雪
を取り除かなければシヤーピンを交換することが
できないため作業者に寒冷地で過酷な作業を強い
ることとなる。(c) Problems to be Solved by the Invention However, in the above structure, since both joints protrude to the front of the plow, snow on the front of the plow hits both joints and adheres to both joints without being removed, impeding snow removal work.
Furthermore, when replacing the shear pin, the snow attached to both joints must be removed before the shear pin can be replaced, forcing workers to perform harsh work in cold regions.
(d) 問題点を解決するための手段
本発明は前記の如き問題点を解消するもので、
プラウ本体とカツテイングエツジとからなるプラ
ウにおいて、プラウ本体後面に補強部材を設け、
前記補強部材の後方にてプラウ本体に回動可能に
支持される回転体を設け、前記回転体には取付部
材を介してカツテイングエツジを取付け、前記補
強部材には前後に貫通した貫通孔を設け、前記回
転体には前記貫通孔と同一線上に位置する孔を設
け、前記両孔には、補強部材と回転体との間に環
状溝が位置するようにシヤーピンを挿着し、前記
シヤーピン基端には、シヤーピンと直交状に取付
板を固定し、前記取付板の一部で、シヤーピンよ
り離れた位置に孔を設け、前記孔には補強部材に
螺合して取付板をプラウ本体若しくは補強部材に
固定するボルトを挿通させてなるプラウ安全装置
に関するものである。(d) Means for solving the problems The present invention solves the problems as described above.
In a plow consisting of a plow body and a cutting edge, a reinforcing member is provided on the rear surface of the plow body,
A rotating body rotatably supported by the plow body is provided behind the reinforcing member, a cutting edge is attached to the rotating body via a mounting member, and a through hole passing through the reinforcing member in the front and back is provided. the rotating body is provided with a hole located on the same line as the through hole, a shear pin is inserted into both the holes so that an annular groove is located between the reinforcing member and the rotating body, and the shear pin A mounting plate is fixed at the base end perpendicular to the shear pin, a hole is provided in a part of the mounting plate at a position away from the shear pin, and a reinforcing member is screwed into the hole to attach the mounting plate to the plow body. Alternatively, it relates to a plow safety device in which a bolt fixed to a reinforcing member is inserted.
(e) 作用
除雪作業中、カツテイングエツジにマンホール
蓋などの障害物が当り、カツテイングエツジが異
常な衝撃を受けた場合には、シヤーピンの環状溝
に補強部材と回転体との間で剪断作用が働き、シ
ヤーピンが切断される。(e) Action During snow removal work, if the cutting edge hits an obstacle such as a manhole cover and receives an abnormal impact, shearing occurs between the reinforcing member and the rotating body in the annular groove of the shear pin. The force acts and the shear pin is cut.
シヤーピンの切断にて回転体とともにカツテイ
ングエツジが後方に回動して障害物を回避するよ
うになつている。 When the shear pin is cut, the cutting edge rotates backward together with the rotating body to avoid obstacles.
(f) 実施例
以下実施例を図面にて説明すると、第１図はプ
ラウの下部を示し、プラウ１はプラウ本体２と複
数に分割されたカツテイングエツジ３とから成る
ものである。(f) Embodiment An embodiment will be described below with reference to the drawings. FIG. 1 shows the lower part of a plow, and the plow 1 is composed of a plow body 2 and a cutting edge 3 divided into a plurality of parts.
前記プラウ本体２の後面には左右方向に延びた
補強桁４をボツクス状に固定し、前記補強桁４よ
り下方のプラウ本体２の後面に肉厚の補強部材５
を固定してある。 A reinforcing beam 4 extending in the left-right direction is fixed to the rear surface of the plow body 2 in a box shape, and a thick reinforcing member 5 is attached to the rear surface of the plow body 2 below the reinforcing beam 4.
is fixed.
前記補強部材５の後方には大径で円柱状の回転
体６を設け、前記回転体６より左右方向に延びた
小径の軸７，７を補強桁４及び補強部材５からの
ブラケツト８にて枢支している。 A large-diameter, cylindrical rotating body 6 is provided behind the reinforcing member 5, and small-diameter shafts 7, 7 extending in the left-right direction from the rotating body 6 are connected to brackets 8 from the reinforcing girder 4 and the reinforcing member 5. It is centrally supported.
前記回転体６には下方に延びた取付部材９を一
体状に設け、前記取付部材９の下部前面には、カ
ツテイングエツジ３の前面がプラウ本体２前面か
らの延長面になるようにカツテイングエツジ３が
皿ボルト１０とナツト１１にて固定されている。 The rotating body 6 is integrally provided with a mounting member 9 extending downward, and a cutting member is provided on the lower front surface of the mounting member 9 so that the front surface of the cutting edge 3 becomes an extension surface from the front surface of the plow main body 2. The edge 3 is fixed with a countersunk bolt 10 and a nut 11.
１２は補強部材５及びプラウ本体２を前後方向
に貫通した貫通孔である。 Reference numeral 12 denotes a through hole passing through the reinforcing member 5 and the plow body 2 in the front-back direction.
１５は回転体１２に直交状に貫通させた孔で、
該孔１５は回転体１２の回転中心を通過するとと
もにカツテイングエツジ３をプラウ本体２と同一
平面状に位置させた際に前記貫通孔１３と同一線
上にくるようになつている。 15 is a hole perpendicularly penetrated through the rotating body 12;
The hole 15 passes through the center of rotation of the rotary body 12 and is aligned with the through hole 13 when the cutting edge 3 is positioned on the same plane as the plow body 2.
１６は前記貫通孔１２及び孔１５に挿通させた
シヤーピンで、該シヤーピン１６は、シヤーピン
１６の中央に形成された環状溝１７が補強部材５
を回転体６との間に位置するようにセツトされて
いる。 A shear pin 16 is inserted through the through hole 12 and the hole 15, and the annular groove 17 formed in the center of the shear pin 16 is connected to the reinforcing member 5.
and the rotating body 6.
１３はシヤーピン１６の環状溝１７のセツト位
置がずれるのを防止するための止め装置で、該止
め装置１３はシヤーピン１６の基端に、シヤーピ
ン１６と直交状に取付板１４を固定し、この取付
板１４の一部であつてシヤーピン１６より離れた
位置に孔１８を設けてある。 Reference numeral 13 denotes a stop device for preventing the set position of the annular groove 17 of the shear pin 16 from shifting. A hole 18 is provided in a part of the plate 14 at a position remote from the shear pin 16.
前記孔１８にボルト１９を挿通し、さらにその
ボルト１９を補強部材５に螺合させて、シヤーピ
ン１６及び取付板１４を補強部材５に固定するよ
うになつている。 A bolt 19 is inserted into the hole 18 and further screwed into the reinforcing member 5 to fix the shear pin 16 and the mounting plate 14 to the reinforcing member 5.
尚、実施例では取付板を補強部材前面に当接さ
せて固定しているが、プラウ本体前面に当接させ
て固定することも可能である。 In the embodiment, the mounting plate is fixed by being brought into contact with the front surface of the reinforcing member, but it is also possible to make it contact and fixed by being brought into contact with the front surface of the plow body.
本発明は前記の如き構成で次に作用について説
明すると、まず第１図実線状態にて除雪作業を行
ない、道路に積もつた雪はカツテイングエツジ３
にて削り取られ、プラウ本体２にて側方に排除さ
れる。 The present invention has the above-mentioned structure. Next, the operation will be explained. First, snow removal work is carried out in the state shown by the solid line in FIG.
It is scraped off by the plow body 2 and laterally removed by the plow body 2.
次にカツテイングエツジが障害物に当り異常な
衝撃が発生した場合には、補強部材５と回転体６
との間で剪断力が発生し、シヤーピン１６が環状
溝１７のところで切断され、カツテイングエツジ
３が第１図実線位置から一点鎖線位置まで後方回
動し、障害物を回避してカツテイングエツジ３の
破損を防止する。 Next, if the cutting edge hits an obstacle and an abnormal impact occurs, the reinforcing member 5 and the rotating body 6
A shearing force is generated between the shear pin 16 and the annular groove 17, and the cutting edge 3 rotates backward from the solid line position in FIG. 3. Prevent damage.
障害物を回避した後、作業状態に戻す場合に
は、止め装置１３の一部であるボルト１９を外
し、シヤーピン１６と一体になつた取付板１４を
取り除く。 When returning to the working state after avoiding the obstacle, the bolts 19, which are part of the stopper device 13, are removed and the mounting plate 14 integrated with the shear pin 16 is removed.
その後、後方回動したカツテイングエツジ３を
前方回動させて取付板１４が固定された新しいシ
ヤーピン１６をプラウ２前方から補強部材５の貫
通孔１２と回転体６の孔１５に挿入させる。その
際、回転体６の孔１５に残つていたシヤーピン１
６の一部は新しいシヤーピン１６にて押し出され
る。 Thereafter, the cutting edge 3 that has been rotated backward is rotated forward to insert a new shear pin 16 to which the mounting plate 14 is fixed into the through hole 12 of the reinforcing member 5 and the hole 15 of the rotating body 6 from the front of the plow 2. At that time, the shear pin 1 remaining in the hole 15 of the rotating body 6
6 is pushed out by a new shear pin 16.
シヤーピン１６の挿入にて取付板１４が補強部
材５前面に当接すると、シヤーピン１６の環状溝
１７が補強部材５と回転体６との間に位置するの
で、その状態で、ボルト１９を取付板１４の孔１
８に挿通し、補強部材５に螺合させて、シヤーピ
ン１６と取付板１４とを補強部材５に当接させて
固定する。 When the mounting plate 14 comes into contact with the front surface of the reinforcing member 5 when the shear pin 16 is inserted, the annular groove 17 of the shear pin 16 is located between the reinforcing member 5 and the rotating body 6, so in this state, the bolt 19 is attached to the mounting plate. 14 holes 1
8 and screwed onto the reinforcing member 5, so that the shear pin 16 and the mounting plate 14 are brought into contact with the reinforcing member 5 and fixed.
これによりカツテイングエツジ３を作業状態に
戻すことができる。 This allows the cutting edge 3 to return to its working state.
(g) 発明の効果
以上の如く本発明はプラウ本体下部の補強部材
の後方に回転支持される回転体を設け、この回転
体にカツテイングエツジを設け、前記補強部材に
は前後に貫通した貫通孔を設け、前記回転体には
貫通孔と同一線上となる孔を設け、前記両孔に前
方からシヤーピンを挿入し、カツテイングエツジ
に異常な衝撃が作用した場合にはシヤーピンが切
断されてカツテイングエツジが後方回動して障害
物を回避するようにしたので、カツテイングエツ
ジの破損を確実に防止することができる。(g) Effects of the Invention As described above, the present invention provides a rotating body that is rotatably supported behind a reinforcing member at the bottom of the plow main body, a cutting edge is provided on this rotating body, and a through hole is provided in the reinforcing member in the front and back. A hole is provided in the rotary body, and a hole is provided in the rotating body that is on the same line as the through hole, and shear pins are inserted into both holes from the front, and when an abnormal impact is applied to the cutting edge, the shear pin is cut and the cutting edge is cut. Since the cutting edge rotates backward to avoid obstacles, damage to the cutting edge can be reliably prevented.
またシヤーピンは補強部材と回転体との間に設
けるようにしたので、プラウ本体からの突出部分
がほとんど無くなり、除雪作業をスムーズに且つ
確実に行なうことができ、またシヤーピンの交換
も容易に行なうことができる。 In addition, since the shear pin is installed between the reinforcing member and the rotating body, there is almost no protruding part from the plow body, making it possible to perform snow removal work smoothly and reliably, and also to easily replace the shear pin. I can do it.
更にシヤーピンの固定を取付板を介してボルト
止めするようにしたので、作業中にシヤーピンに
くり返し振動が発生してもボルトには直接伝わら
ないため、ボルトがゆるむことが無く、シヤーピ
ンを確実に固定しておくことができる。 Furthermore, since the shear pin is fixed with bolts through the mounting plate, even if repeated vibrations occur on the shear pin during work, it will not be transmitted directly to the bolt, so the bolt will not loosen and the shear pin will be securely fixed. You can keep it.
第１図は全体の断面図、第２図は第１図のＡ−
Ａ図、第３図はシヤーピンの組付図である。
２はプラウ本体、３はカツテイングエツジ、５
は補強部材、６は回転体、１２は貫通孔、１３は
止め装置、１４は取付板、１５は孔、１６はシヤ
ーピン、１９はボルト。
Figure 1 is an overall cross-sectional view, Figure 2 is A-A in Figure 1.
Figures A and 3 are assembly diagrams of the shear pin. 2 is the plow body, 3 is the cutting edge, 5
1 is a reinforcing member, 6 is a rotating body, 12 is a through hole, 13 is a stopper, 14 is a mounting plate, 15 is a hole, 16 is a shear pin, and 19 is a bolt.
Claims (1)
プラウにおいて、プラウ本体後面に補強部材を設
け、前記補強部材の後方にてプラウ本体に回動可
能に支持される回転体を設け、前記回転体には取
付部材を介してカツテイングエツジを取付け、前
記補強部材には前後に貫通した貫通孔を設け、前
記回転体には前記貫通孔と同一線上に位置する孔
を設け、前記両孔には、補強部材と回転体との間
に環状溝が位置するようにシヤーピンを挿着し、
前記シヤーピン基端には、シヤーピンと直交状に
取付板を固定し、前記取付板の一部で、シヤーピ
ンより離れた位置に孔を設け、前記孔には補強部
材に螺合して取付板をプラウ本体若しくは補強部
材に固定するボルトを挿通させてなるプラウ安全
装置。1. In a plow consisting of a plow body and a cutting edge, a reinforcing member is provided on the rear surface of the plow body, a rotating body rotatably supported by the plow body is provided behind the reinforcing member, and the rotating body has a A cutting edge is attached through a member, the reinforcing member is provided with a through hole penetrating back and forth, the rotating body is provided with a hole located on the same line as the through hole, and both holes are provided with a reinforcing member. Insert the shear pin so that the annular groove is located between the
A mounting plate is fixed to the base end of the shear pin perpendicularly to the shear pin, a hole is provided in a part of the mounting plate at a position away from the shear pin, and the mounting plate is screwed into the hole by screwing a reinforcing member. A plow safety device consisting of a bolt inserted into the plow body or reinforcing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24568187A JPS6483703A (en) | 1987-09-28 | 1987-09-28 | Plough safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24568187A JPS6483703A (en) | 1987-09-28 | 1987-09-28 | Plough safety device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6483703A JPS6483703A (en) | 1989-03-29 |
| JPH0423042B2 true JPH0423042B2 (en) | 1992-04-21 |
Family
ID=17137228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24568187A Granted JPS6483703A (en) | 1987-09-28 | 1987-09-28 | Plough safety device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6483703A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011019022A1 (en) | 2009-08-10 | 2011-02-17 | 旭化成せんい株式会社 | Filtration cloth for dust collection machine |
-
1987
- 1987-09-28 JP JP24568187A patent/JPS6483703A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011019022A1 (en) | 2009-08-10 | 2011-02-17 | 旭化成せんい株式会社 | Filtration cloth for dust collection machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6483703A (en) | 1989-03-29 |
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