JP3789414B2

JP3789414B2 - Anti-theft device for portable engine work machine

Info

Publication number: JP3789414B2
Application number: JP2002290598A
Authority: JP
Inventors: 三雄永田; 忠後藤; 克明田中
Original assignee: Nippon Sharyo Ltd
Current assignee: Nippon Sharyo Ltd
Priority date: 2001-11-16
Filing date: 2002-10-03
Publication date: 2006-06-21
Anticipated expiration: 2022-10-03
Also published as: JP2003214174A

Description

【０００１】
【発明の属する技術分野】
本発明は、主として野外の建設現場等で使用される可搬式エンジン作業機の盗難防止装置に関する。
【０００２】
【従来の技術】
エンジンと、該エンジンにより駆動される発電機、ウエルダー、コンプレッサー、油圧ユニット等の動力供給源を搭載した可搬式エンジン作業機は、エンジンより発する騒音を低減するために、防音構造のケーシングにてエンジン及び動力供給源を覆っている。この作業機は、クレーン等によって吊り上げて移動可能なように、クレーンのフックやワイヤロープ等の吊り上げ具が着脱可能に係合する作業機移動用吊り金具として、ケーシングの天板の中央部に形成した凹部の作業機のほぼ重心位置に、バー状の吊り金具を掛け渡している（例えば、特許文献１参照。）。
【０００３】
【特許文献１】
特開平８−１８５５７５号公報（第２頁、図１、図３）
【０００４】
【発明が解決しようとする課題】
ところが、吊り金具が作業機のほぼ重心位置に設けられているので、吊り金具にクレーンのフックやワイヤロープ等の吊り上げ具を係合させて、一本吊りによる簡単な荷吊り作業で作業機を移動できることから、小型のエンジン作業機であれば、クレーンを搭載したトラックで容易に持ち運びができ、トラックへの積載に時間がかからないため、小型のエンジン作業機を中心に盗難されるケースが増加している。また、作業機をトラック等の運搬車の荷台に固定するために、ケーシングの天板両側角部には、凹部がそれぞれ形成され、各凹部にバー状のロープ掛け金具が設けられており、これらロープ掛け金具にワイヤロープを掛けて作業機を吊り上げて移動させることも可能である。
【０００５】
盗難防止装置として、暗証番号等の認証システムにより正規の始動方法をとらなければエンジンが始動しないものや、警報音が鳴る等のものがあるが、エンジンを始動せずに持ち去ることに対しては効果がない。また、エンジン作業機の吊り上げ動作をロードセルやリミットスイッチ等により感知して警報音を発したり、無線等で盗難を管理者に通報するものもあるが、装置自体が高価となるだけでなく、盗難自体を防ぐことは不可能であった。
【０００６】
そこで本発明は、作業機を移動させる必要があるとき以外は、吊り上げ作業ができないようにした可搬式エンジン作業機の盗難防止装置を提供することを目的としている。
【０００７】
【課題を解決するための手段】
上記した目的を達成するため、エンジン及び該エンジンにより駆動される発電機等の動力供給源を覆うケーシングの天板に形成した凹部の両側壁に、吊り上げ具が着脱可能に係合する作業機移動用のバー状の吊り金具を掛け渡した可搬式エンジン作業機の盗難防止装置における第１の発明は、前記吊り上げ具と前記吊り金具との係合を阻止する閉塞部材と、該閉塞部材による閉塞状態を維持するロック機構とで構成され、前記閉塞部材は、前記吊り金具を上方から覆って、吊り金具を挟んで吊り金具下方の空間を塞ぐとともに下端が前記凹部の底板に当接する一対の邪魔板部を有し、該一対の邪魔板部には、前記吊り金具の下方に位置するピン孔が形成され、前記ロック機構は、前記ピン孔に挿通されて吊り金具の下方を通る有頭ピンと、該有頭ピンを抜け止めする錠とからなることを特徴とし、また、第１の発明において、前記天板の両側角部に形成した凹部に吊り上げ具が着脱可能に係合する水平方向のバー状のロープ掛け金具をそれぞれ掛け渡し、前記吊り上げ具と前記ロープ掛け金具との係合を阻止するロープ掛け金具用の閉塞部材と、該ロープ掛け金具用の閉塞部材による閉塞状態を維持するロープ掛け金具用のロック機構とで構成され、前記ロープ掛け金具用の閉塞部材は、前記ロープ掛け金具を上方から覆って、ロープ掛け金具を挟んでロープ掛け金具下方の空間を塞ぐとともに下端が前記角部の凹部の底板に当接する一対の邪魔板部を有し、該ロープ掛け金具下方の空間を塞ぐ一対の邪魔板部には、前記ロープ掛け金具の下方に位置するピン孔が形成され、前記ロープ掛け金具用のロック機構は、前記ロープ掛け金具の下方に位置するピン孔に挿通されてロープ掛け金具の下方を通る有頭ピンと、該ロープ掛け金具の下方を通る有頭ピンを抜け止めする錠とからなることを特徴としている。第２の発明は、前記吊り上げ具と前記吊り金具との係合を阻止する閉塞部材と、該閉塞部材による閉塞状態を維持するロック機構とで構成され、前記閉塞部材は、前記吊り金具を上方から覆って、吊り金具を挟んで吊り金具下方の空間を塞ぐとともに下端が前記凹部の底板に当接する一対の邪魔板部を有し、該一対の邪魔板部には、前記吊り金具の下方に位置する挿通孔が形成され、前記ロック機構は、前記挿通孔に挿通されて吊り金具の下方を通る板状の鍵部材と、該鍵部材を抜け止めする錠とからなることを特徴とし、また、第２の発明において、前記天板の両側角部間に形成した凹部の両側角部に吊り上げ具が着脱可能に係合する水平方向のバー状のロープ掛け金具をそれぞれ掛け渡し、前記吊り上げ具と前記ロープ掛け金具との係合を阻止するロープ掛け金具用の閉塞部材と、該ロープ掛け金具用の閉塞部材による閉塞状態を維持するロープ掛け金具用のロック機構とで構成され、前記ロープ掛け金具用の閉塞部材は、前記ロープ掛け金具を上方から覆って、ロープ掛け金具を挟んでロープ掛け金具下方の空間を塞ぐとともに下端が前記角部の凹部の底板に当接する一方の邪魔板部と凹部下方の側板に当接する他方の邪魔板部とを有し、該ロープ掛け金具下方の空間を塞ぐ前記両邪魔板部には、前記ロープ掛け金具の下方に位置する挿通孔が形成され、前記ロープ掛け金具用のロック機構は、前記ロープ掛け金具の下方に位置する挿通孔に挿通されてロープ掛け金具の下方を通る板状の鍵部材と、該ロープ掛け金具の下方を通る鍵部材を抜け止めする錠とからなることを特徴としている。第３の発明は、前記吊り上げ具と前記吊り金具との係合を阻止する閉塞部材と、該閉塞部材による閉塞状態を維持するロック機構とで構成され、前記閉塞部材は、前記吊り金具の下方に挿入された際に、吊り金具に当接あるいは微小の隙間を存する天井板と、吊り金具下方の空間を塞ぐ一対の邪魔板部とを有し、前記ロック機構は、前記吊り金具の下方に挿入された前記閉塞部材を、前記凹部の底板に係止する錠からなることを特徴とし、第３の発明において、前記天板の両側角部の凹部の両側壁に、吊り上げ具が着脱可能に係合する水平方向のバー状のロープ掛け金具をそれぞれ掛け渡し、前記吊り上げ具と前記ロープ掛け金具との係合を阻止するロープ掛け金具用の閉塞部材と、該ロープ掛け金具用の閉塞部材による閉塞状態を維持するロープ掛け金具用のロック機構とで構成され、前記ロープ掛け金具用の閉塞部材は、前記ロープ掛け金具の下方に挿入された際に、ロープ掛け金具に当接あるいは微小の隙間を存する天井板と、ロープ掛け金具下方の空間を塞ぐ一対の邪魔板部とを有し、前記ロープ掛け金具用のロック機構は、前記ロープ掛け金具の下方に挿入された前記ロープ掛け金具用の閉塞部材を、前記凹部の底板に係止する錠からなることを特徴としている。
【０００８】
第４の発明は、前記吊り上げ具と前記吊り金具との係合を阻止する閉塞部材と、該閉塞部材による閉塞状態を維持するロック機構とで構成され、前記閉塞部材は、前記吊り金具に回動可能に設けられるもので、前記吊り金具を抱持する基部と、該閉塞部材の垂下状態で前記吊り金具下方の空間を塞ぐ邪魔板部とを有し、前記ロック機構は、垂下状態の前記閉塞部材を、前記凹部の底板に係止する錠からなることを特徴としている。第５の発明は、前記吊り上げ具と前記吊り金具との係合を阻止する閉塞部材と、該閉塞部材による閉塞状態を維持するロック機構とで構成され、前記閉塞部材は、前記吊り金具に回動可能に設けられるもので、前記吊り金具を抱持する基部と、該閉塞部材の垂下状態で前記吊り金具下方の空間を塞ぐ邪魔板部とを有し、前記ロック機構は、垂下状態の前記閉塞部材を、前記凹部の底板に設けたプレートに係止する錠からなることを特徴としている。第６の発明は、前記吊り上げ具と前記吊り金具との係合を阻止する閉塞部材と、該閉塞部材による閉塞状態を維持するロック機構とで構成され、前記閉塞部材は、前記吊り金具に回動可能に設けられるもので、前記吊り金具を上方から覆う断面略逆Ｕ字状で、該閉塞部材の垂下状態で吊り金具を挟んで吊り金具下方の空間を塞ぐ一対の邪魔板部を有し、前記閉塞部材が上方へ回動した状態でクレーンのフックが係合するバーを両邪魔板部間に設け、前記ロック機構は、垂下状態の前記閉塞部材を、前記凹部の底板に係止する錠からなることを特徴としている。第７の発明は、前記吊り上げ具と前記吊り金具との係合を阻止する閉塞部材と、該閉塞部材による閉塞状態を維持するロック機構とで構成され、前記閉塞部材は、前記吊り金具下方の空間を塞ぐ邪魔板部を有し、該邪魔板部の基端を前記凹部の一方の側壁にヒンジにて水平回動可能に設けられるもので、前記ロック機構は、前記邪魔板が前記吊り金具の下方に位置したときに該邪魔板を前記凹部の他方の側壁に係止する錠からなることを特徴としている。第８の発明は、前記吊り上げ具と前記吊り金具との係合を阻止する閉塞部材と、該閉塞部材による閉塞状態を維持するロック機構とで構成され、前記閉塞部材は、前記吊り金具下方の空間を塞ぐ邪魔板部を有し、該邪魔板部の下辺を前記凹部の底板にヒンジにて起伏可能に設けられるもので、前記ロック機構は、起立状態の前記邪魔板を前記凹部側壁に係止する錠からなることを特徴としている。また、第４乃至第８の発明において、前記天板の両側角部に形成した凹部内に上側開放の鉛直状のロープ掛け金具を設けたことを特徴としている。
【０００９】
【発明の実施の形態】
以下、本発明を図面に示される各実施形態例に基づいて説明する。図１乃至図７は本発明の第１実施形態例を示すもので、可搬式エンジン作業機１は、エンジン及び該エンジンにより駆動される発電機等の動力供給源をケーシング２で覆っている。該ケーシング２の天板３には、中央部に凹部４が、両側の角部にケーシング２の側板５にも開口する凹部６ａ，６ｂがそれぞれ形成され、凹部４と凹部６ａ，６ｂとは天板３ａ，３ｂ及び仕切り板３ｃ，３ｄで仕切られている。前記凹部４の両側壁４ａ，４ｂ間には、吊り金具として水平方向のバー７が掛け渡され、前記凹部６ａ，６ｂにも両角部に、本来の吊り金具としてではないが、吊り金具として流用可能な水平方向のバー状のロープ掛け金具８がそれぞれ掛け渡されている。
【００１０】
前記バー７には、クレーンのフックやワイヤロープ等の吊り上げ具の係合を阻止する閉塞部材１１が設けられている。該閉塞部材１１は、バー７を上方から覆う断面略逆Ｕ字状に形成され、バー７を挟む一対の邪魔板部１１ａ，１１ａと、両邪魔板部１１ａ，１１ａの下端に外側へ折り曲げ形成されたフランジ部１１ｂ，１１ｂと、両邪魔板部１１ａ，１１ａに形成されたピン孔１１ｃ，１１ｃとを有している。該ピン孔１１ｃ，１１ｃには、ピン孔１１ｃ，１１ｃに挿通される有頭ピン１２と、該有頭ピン１２の抜け止めとして、一方の邪魔板部１１ａから突出した有頭ピン１２の先端に取り付けられる例えば南京錠１３等の錠とからなるロック機構が設けられる。
【００１１】
この閉塞部材１１をバー７に被せると、前記両邪魔板部１１ａ，１１ａがバー７下方の空間を塞いで、前記フランジ部１１ｂ，１１ｂが凹部４の底板４ｃに当接し、前記ピン孔１１ｃ，１１ｃがバー７の下方に位置する。この状態で、ピン孔１１ｃ，１１ｃに有頭ピン１２を挿通すると、有頭ピン１２の上端とバー７の下端が隙間無く当接するので、閉塞部材１１は回転不能状態となる。この状態で、有頭ピン１２先端に南京錠１３等の錠を取り付けて、閉塞部材１１を係止することにより、バー７下方の空間閉塞状態を維持できる。
【００１２】
前記両ロープ掛け金具８にも、ワイヤロープ等の吊り上げ具を係合して作業機１を持ち上げることを阻止するための閉塞部材１４が設けられている。この閉塞部材１４は、ロープ掛け金具８を上方から覆う断面略逆Ｕ字状に形成され、ロープ掛け金具８を挟む一対の邪魔板部１４ａ，１４ａと、一方の邪魔板部１４ａの下端に外側へ折り曲げ形成されたフランジ部１４ｂと、両邪魔板部１４ａ，１４ａに形成されたピン孔１４ｃ，１４ｃとを有している。該ピン孔１４ｃ，１４ｃにも、前記閉塞部材１１と同様に、有頭ピン１２と南京錠１３等の錠とからなるロック機構が取り付けられる。
【００１３】
この閉塞部材１４をロープ掛け金具８に被せると、一方の邪魔板部１４ａのフランジ部１４ｂが凹部６ａ，６ｂの底板６１に当接し、他方の邪魔板部１４ａは、先端が凹部６ａ，６ｂ下方の側板５に当接して、ロープ掛け金具８の下方に位置するピン孔１４ｃ，１４ｃへの有頭ピン１２の挿通と相俟って閉塞部材１４は回転不能状態となる。この状態で、前記閉塞部材１１と同様に、有頭ピン１２の先端に南京錠１３等の錠を取り付ることによって閉塞部材１４を係止することにより、ロープ掛け金具８下方の空間閉塞状態を維持できる。
【００１４】
このように、前記バー７に前記閉塞部材１１を、前記両ロープ掛け金具８に前記閉塞部材１４を装着することにより、バー７は、閉塞部材１１の両邪魔板１１ａ，１１ａにてバー７下方の空間が塞がれ、閉塞部材１１をバー７を中心に回動しようとしても、フランジ部１１ｂ，１１ｂが凹部４の底板４ｃに当接して閉塞部材１１が回らないので、バー７にクレーンのフックやワイヤロープ等の吊り上げ具が係合することを阻止できる。また、両ロープ掛け金具８は、閉塞部材１４の両邪魔板１４ａ，１４ａにてロープ掛け金具８下方の空間が塞がれ、閉塞部材１４の回動もできなくなるので、ロープ掛け金具８，８にワイヤロープ等の吊り上げ具を係合して作業機１を持ち上げることを阻止できる。
【００１５】
したがって、可搬式エンジン作業機１を移動させる必要があるとき以外は、前記バー７に前記閉塞部材１１を、前記両ロープ掛け金具８に前記閉塞部材１４をそれぞれ装着しておくことにより、クレーン等によって吊り上げることができないので、可搬式エンジン作業機１の盗難を未然に防ぐことができる。
【００１６】
図８乃至図１２は第２実施形態例を示すものである。なお、以降の実施形態例において前記第１実施形態例と同一構成部分には同一の符号を付して説明する。本実施形態例の作業機１は、天板３に、天板３の両側角部間に連続形成した凹部９を有している。この凹部９は、天板３側の上面と、両側板５の側面に開口し、中央部に前記バー７を、両側角部に前記ロープ掛け金具８，８をそれぞれ掛け渡している。
【００１７】
前記バー７に装着される閉塞部材５１は、バー７を上方から覆う断面略逆コ字状で、バー７下方の空間を塞ぐ邪魔板部５１ａ，５１ａと、凹部９の底板９ａに当接して閉塞部材５１の回り止めをするフランジ部５１ｂ，５１ｂと、邪魔板部５１ａ，５１ａとバー７上部及び両側部間との隙間を狭くして閉塞部材５１とバー７間の遊びを少なくするスペーサー５１ｃとを有している。また、両邪魔板部５１ａ，５１ａには、板状の鍵部材１７の挿通孔５１ｄがそれぞれ形成されている。さらに、一方の邪魔板部５１ａには、シリンダ錠２３が設けられ、該シリンダ錠２３のキー２３ａを回動させて鍵部材１７のスリット１７ａに挿入させてロックする構成となっており、図１２（ａ）に示されるように、スリット１７ａに挿入されたキー２３ａは、鍵部材１７を引き抜いて外そうとしても、邪魔板部５１ａ内面の挿通孔５１ｄ両側に形成された当接部５１ｅ，５１ｅに当接し、当接部５１ｅ，５１ｅに掛かる曲げモーメントの支点Ｄ１，Ｄ２と、鍵部材１７からキー２３ａに掛かる曲げモーメントの支点Ａとの距離が短いため、図１２（ｂ）に示されるように、キー２３ａに掛かる曲げモーメント力が小さくなり、キー２３ａが変形しにくく壊れにくいので、鍵部材１７を引き抜くことができないようになっている。
【００１８】
ロープ掛け金具８に装着される閉塞部材５４も、ロープ掛け金具８を上方から覆う断面略逆コ字状で、ロープ掛け金具８下方の機体内側空間を塞ぐ一方の邪魔板部５４ａは、フランジ部５４ｂが凹部９の底板９ａに当接し、ロープ掛け金具８下方の機体外側空間を塞ぐ他方の邪魔板部５４ａは、先端が凹部９下方の側板５に当接し、これらの当接と、両邪魔板部５４ａ，５４ａ上部のスペーサ５４ｃによる閉塞部材５４とロープ掛け金具８間の遊びを少なくすることと相俟って閉塞部材５４の回り止めをする構成である。また、両邪魔板部５４ａ，５４ａには、前記閉塞部材５１と同様に、板状の鍵部材１７の挿通孔５４ｄがそれぞれ形成され、一方の邪魔板部５４ａに設けられたシリンダ錠２３のキー２３ａがスリット１７ａに係合するよう回動可能となっている。
【００１９】
なお、Ｌ字状に形成した鍵部材１７は、先端に施錠孔１７ｂを有し、該施錠孔１７ｂに南京錠等を挿入して施錠すれば、シリンダ錠２３による施錠をしなくても鍵部材１７を引き抜くことができない。
【００２０】
図１３は第３実施形態例を示すもので、バー７下方の空間を塞ぐ閉塞部材６１は、対向する邪魔板部６１ａ，６１ａと両邪魔板部６１ａ，６１ａの上部を連結する天井板６１ｂとを有する断面略逆コ字状に形成され、一方の邪魔板部６１ａに、ロック機構として例えば凹部９の底板９ａに係合する押しボタン錠３２等の錠を取り付けている。この閉塞部材６１は、バー７の下方に挿入され、天井板６１ｂをバー７の下端部に当接あるいは微小の隙間を存して、両邪魔板部６１ａ，６１ａでバー７下方の空間を塞ぎ、押しボタン錠３２の鍵棒３２ａの前記底板９ａへの係合によって閉塞状態を維持する。また、ロープ掛け金具８下方の空間を塞ぐ閉塞部材６３も、前記閉塞部材６１と略同様に断面略逆コ字状に形成され、対向する邪魔板部６３ａ，６３ａと、天井板６３ｂと、一方の邪魔板部６３ａに取り付けた、押しボタン錠３２とを有し、前記閉塞部材６１と同様に、ロープ掛け金具８の下方に挿入されて、両邪魔板部６３ａ，６３ａにてロープ掛け金具８下方の空間を塞ぎ、押しボタン錠３２の鍵棒３２ａの前記底板９ａへの係合によって閉塞状態を維持する。
【００２１】
図１４乃至図１７は第４実施形態例を示すもので、本実施形態例から後述する第８実施形態例の可搬式エンジン作業機１は、天板３の中央部分の凹部４内には前記各実施形態例と同様なバー７を設け、一方、両側の凹部６ａ，６ｂ内には、上側を開放した鉛直状のロープ掛け金具８１をそれぞれ設けて、ロープ掛け金具８１，８１にワイヤロープを掛けても上方向に引き上げることができずに、作業機１の吊り上げが不可能な構成とした作業機１に好適なものである。
【００２２】
バー７下方の空間を塞ぐ閉塞部材１０１は、バー７に回動可能に設けられるもので、バー７の両端側を抱持する基部１０１ａ，１０１ａと、バー７下方の空間を塞ぐ邪魔板部１０１ｂと、邪魔板部１０１ｂの下端から折り曲げ形成されたフランジ部１０１ｃとを有し、フランジ部１０１ｃにロック機構として例えば押しボタン錠３２等の錠を取り付けている。
【００２３】
この閉塞部材１０１は、図１６に示されるように、上方へ回動した状態ではクレーンのフックやワイヤロープ等の吊り上げ具をバー７に係合できるが、この状態から図１６において時計方向に回動させて邪魔板部１０１ｂを垂下状態にすると、フランジ部１０１ｃが凹部４内の底板４ｃに当接して回り止めする。この状態で押しボタン錠３２を操作して、鍵棒３２ａを底板４ｃの鍵穴に挿入させることにより底板４ｃに係止され、邪魔板部１０１ｂによるバー７下方の空間閉塞状態を維持し、バー７に吊り上げ具が係合することを阻止する。
【００２４】
図１８及び図１９は第５実施形態例を示すもので、前記第４実施形態例と同様にバー７に回動可能に設けられる閉塞部材１１１は、バー７の両端側を抱持する基部１１１ａ，１１１ａと、バー７下方の空間を塞ぐ邪魔板部１１１ｂとを有し、邪魔板部１１１ｂにロック機構として例えばシリンダ錠２３等の錠を取り付け、邪魔板部１１１ｂを垂下状態に回動してシリンダ錠２３を凹部４内の底板４ｃに設けたプレート１１２の鍵穴に係合させることにより底板４ｃに係止され、邪魔板部１１１ｂによるバー７下方の空間閉塞状態を維持し、バー７に吊り上げ具が係合することを阻止する。
【００２５】
図２０及び図２１は第６実施形態例を示すもので、バー７に回動可能に設けられた閉塞部材１２１は、バー７を上方から覆う断面略逆Ｕ字状で、バー７を挟んでバー７下方の空間を塞ぐ両邪魔板部１２１ａ，１２１ａと、一方の邪魔板１２１ａの下端に外側へ折り曲げ形成されたフランジ部１２１ｂとを有し、フランジ部１２１ｂにロック機構として例えば押しボタン錠３２等の錠を取り付け、両邪魔板部１２１ａ，１２１ａ間にクレーンのフック１２２が係合するバー１２１ｃを設けたものである。
【００２６】
この閉塞部材１２１は、図２０に示されるように、上方へ回動した状態ではバー１２１ｃにクレーンのフック１２２を係合でき、図２０において時計方向に回動させた垂下状態になると、フランジ部１２１ｂが凹部４の底板４ｃに当接して回り止めする。この状態で押しボタン錠３２を操作して、鍵棒３２ａを底板４ｃの鍵穴に挿入させることにより底板４ｃに係止され、両邪魔板部１２１ａ，１２１ａによるバー７下方の空間閉塞状態を維持し、バー７に吊り上げ具が係合することを阻止する。
【００２７】
図２２及び図２３は第７実施形態例を示すもので、閉塞部材１３１は、バー７の下方に水平回動可能に設けられている。この閉塞部材１３１は、バー７下方の空間を塞ぐ邪魔板部１３１ａと、邪魔板１３１ａの先端に折り曲げ形成されたフランジ部１３１ｂとを有し、邪魔板１３１ａの基端を凹部４内の一方の側壁４ａにヒンジ１３２にて回動可能に取り付けられ、フランジ部１３１ｂにロック機構として押しボタン錠３２を備えており、邪魔板１３１ａがバー７の下方に位置したときに凹部４内の他方の側壁４ｂの鍵穴に押しボタン錠３２の鍵棒３２ａを挿入させることにより、両側壁４ａ，４ｂに係止され、邪魔板１３１ａによるバー７下方の空間閉塞状態を維持し、バー７に吊り上げ具が係合することを阻止する。
【００２８】
図２４は第８実施形態例を示すもので、閉塞部材１４１は、バー７の下方に起伏可能に設けられている。この閉塞部材１４１は、バー７下方の空間を塞ぐ邪魔板部１４１ａと、邪魔板１４１ａの側辺に折り曲げ形成されたフランジ部１４１ｂとを有し、邪魔板１４１ａの下辺をヒンジ１４２にて凹部４内の底板４ｃに取り付けられ、フランジ部１４１ｂにロック機構として押しボタン錠３２を取り付けており、邪魔板１４１ａの起立状態で凹部４内の側壁４ｂの鍵穴に押しボタン錠３２の鍵棒３２ａを挿入させることにより係止され、邪魔板部１４１ａによるバー７下方の空間閉塞状態を維持し、バー７に吊り上げ具が係合することを阻止する。
【００２９】
【発明の効果】
以上説明したように、本発明の盗難防止装置は、可搬式エンジン作業機を移動させる必要があるとき以外は、可搬式エンジン作業機の移動用吊り金具へのクレーンのフックやワイヤロープ等の吊り上げ具の係合を阻止して、吊り上げ作業をできないようにするから、運搬トラック等の荷台へ搭載することができなくなって作業機の盗難を未然に防ぐことができる。
【図面の簡単な説明】
【図１】第１実施形態例の閉塞部材を取り付けた状態の断面図
【図２】同じく平面図
【図３】同じく正面図
【図４】第１実施形態例の可搬式エンジン作業機の平面図
【図５】ロープ掛け金具８に閉塞部材を取り付けた状態の断面図
【図６】ロープ掛け金具８に閉塞部材を取り付けた状態の正面図
【図７】第１実施形態例の可搬式エンジン作業機の正面図
【図８】第２実施形態例の閉塞部材の断面図
【図９】同じく平面図
【図１０】閉塞部材４１の正面図
【図１１】閉塞部材４４の正面図
【図１２】シリンダ錠のロック状態を示す概略図
【図１３】第３実施形態例の閉塞部材を示す断面図
【図１４】第４実施形態例以降の可搬式エンジン作業機の平面図
【図１５】同じく正面図
【図１６】第４実施形態例の閉塞部材を示す図１４のＸＶＩ−ＸＶＩ断面図
【図１７】同じく正面図
【図１８】第５実施形態例の閉塞部材を示す断面図
【図１９】同じく正面図
【図２０】第６実施形態例の閉塞部材を示す一部断面図
【図２１】同じく正面図
【図２２】第７実施形態例の閉塞部材を示す平面図
【図２３】同じく一部断面図
【図２４】第８実施形態例の閉塞部材を示す一部断面図
【符号の説明】
１…可搬式エンジン作業機、２…ケーシング、３…ケーシングの天板、４…天板中央部の凹部、５…ケーシングの側板、６ａ，６ｂ…天板両側角部の凹部、７…バー、８，８１…ロープ掛け金具、９…両側角部間に亘る凹部、１１，１４，５１，６１，１０１，１１１，１２１，１３１，１４１…閉塞部材、１１ａ，１４ａ，５１ａ，６１ａ，１０１ｂ，１１１ｂ，１２１ａ，１３１ａ，１４１ａ…邪魔板、１２…有頭ピン、１３…南京錠、６２，１２２，１３２，１４２…ヒンジ、２３…シリンダ錠[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a theft prevention device for a portable engine work machine mainly used at an outdoor construction site or the like.
[0002]
[Prior art]
  A portable engine work machine equipped with an engine and a power supply source such as a generator driven by the engine, a welder, a compressor, a hydraulic unit, and the like is designed with a soundproof casing to reduce noise generated by the engine. And covers the power supply. This work implement is formed at the center of the top plate of the casing as a work implement moving bracket that detachably engages with a lifting tool such as a crane hook or wire rope so that it can be lifted and moved by a crane or the like. A bar-shaped hanging bracket is hung around the position of the center of gravity of the recessed working machine (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
      JP-A-8-185575 (Page 2, FIGS. 1 and 3)
[0004]
[Problems to be solved by the invention]
  However, since the hanging bracket is provided at almost the center of gravity of the work implement, the crane can be engaged with a lifting tool such as a crane hook or wire rope, and the work implement can be operated with a simple load hanging work. Because it can move, a small engine work machine can be easily carried on a truck equipped with a crane, and it takes less time to load on the truck. ing. In addition, in order to fix the work machine to the loading platform of a truck or other transport vehicle, a concave portion is formed on each side corner of the top plate of the casing, and a bar-shaped rope bracket is provided in each concave portion. It is also possible to hang and move the work implement by hanging a wire rope on the rope hook.
[0005]
  Anti-theft devices include those that do not start the engine unless a proper starting method is taken by an authentication system such as a personal identification number, and those that sound an alarm sound. has no effect. In addition, there are some that detect the lifting operation of the engine work machine with a load cell, limit switch, etc. and emit an alarm sound, or report theft to the administrator by radio etc., but the device itself is not only expensive but also theft It was impossible to prevent itself.
[0006]
  Therefore, an object of the present invention is to provide a theft prevention device for a portable engine work machine that prevents the lifting work from being performed except when the work machine needs to be moved.
[0007]
[Means for Solving the Problems]
  In order to achieve the above-described object, the working machine moves such that the lifting tool is detachably engaged with both side walls of the recess formed in the top plate of the casing that covers the engine and a power supply source such as a generator driven by the engine. According to a first aspect of the antitheft device for a portable engine working machine over which a bar-shaped suspension fitting is hung, a closure member for preventing the engagement between the lifting tool and the suspension fitting, and a closure by the closure member The blocking member covers the suspension fitting from above, closes the space below the suspension fitting with the suspension fitting interposed therebetween, and has a pair of obstacles whose lower end abuts against the bottom plate of the recess. The pair of baffle plates has a pin hole located below the suspension fitting, and the lock mechanism is inserted into the pin hole and passes below the suspension fitting. The In the first invention, a horizontal bar-like shape in which a lifting tool is detachably engaged with concave portions formed on both side corners of the top plate. A rope hanging bracket closing member for holding the rope hanging bracket and blocking the engagement between the lifting tool and the rope hanging bracket, and a rope hanging bracket for maintaining the closed state by the rope hanging bracket closing member. The locking member for the rope hanging bracket covers the rope hanging bracket from above, closes the space below the rope hanging bracket with the rope hanging bracket interposed therebetween, and the lower end is a concave portion of the corner portion. The pair of baffle plates that abut against the bottom plate of the rope, and the pair of baffle plates that block the space below the rope hanger bracket are formed with pin holes positioned below the rope hanger bracket. The locking mechanism for the hook hanging bracket prevents the headed pin passing through the lower portion of the rope hanging bracket inserted through the pin hole located below the rope hanging bracket and the headed pin passing below the rope hanging bracket. It consists of a lock. According to a second aspect of the present invention, there is provided a closing member that prevents engagement between the lifting tool and the hanging metal fitting, and a lock mechanism that maintains a closed state by the closing member. A pair of baffle plates that close the space below the suspension fitting and sandwich the suspension fitting and have a lower end abutting against the bottom plate of the recess, and the pair of baffle plate portions below the suspension fitting. An insertion hole is formed, and the locking mechanism is composed of a plate-like key member that is inserted through the insertion hole and passes below the suspension fitting, and a lock that prevents the key member from being removed. In the second invention, a horizontal bar-shaped rope hanger, in which a lifting tool is detachably engaged with both side corners of a recess formed between both side corners of the top plate, is respectively hung, and the lifting tool And the rope hanger A blocking member for the rope hanging bracket and a lock mechanism for the rope hanging bracket that maintains the closed state by the blocking member for the rope hanging bracket, and the blocking member for the rope hanging bracket is the rope hanging bracket. Cover the bracket from above, close the space below the rope bracket by sandwiching the rope bracket, and the other end of the bottom plate abutting against the bottom plate of the recess at the corner and the side plate below the recess The baffle plate portion that has a plate portion and closes the space below the rope hanging bracket is formed with an insertion hole positioned below the rope hanging bracket, and the lock mechanism for the rope hanging bracket includes: A plate-like key member that is inserted through an insertion hole located below the rope hook and passes below the rope hook, and a lock that prevents the key member passing below the rope hook from being removed. It is set to. 3rd invention is comprised by the closure member which prevents engagement with the said lifting tool and the said suspension metal fitting, and the lock mechanism which maintains the obstruction | occlusion state by this closure member, and the said closure member is below the said suspension metal fitting. And a pair of baffle plates that block the space below the suspension fitting, and the locking mechanism is located below the suspension fitting. It is characterized by comprising a lock for locking the inserted blocking member to the bottom plate of the recess. In the third aspect of the invention, the lifting tool can be attached to and removed from both side walls of the recess at both corners of the top plate. A horizontal bar-shaped rope hanging bracket to be engaged is respectively hung, and a rope hanging bracket blocking member that prevents the lifting tool and the rope hanging bracket from engaging with each other, and the rope hanging bracket closing member Maintain occlusion The ceiling plate is configured with a lock mechanism for the loop hanging bracket, and the closing member for the rope hanging bracket is in contact with the rope hanging bracket or has a minute gap when inserted below the rope hanging bracket. And a pair of baffle plates that block the space below the rope hook, and the lock mechanism for the rope hook includes a closing member for the rope hook inserted below the rope hook, It consists of the lock | rock locked to the baseplate of the said recessed part, It is characterized by the above-mentioned.
[0008]
  According to a fourth aspect of the present invention, there is provided a closing member that prevents engagement between the lifting tool and the lifting bracket, and the closing member A locking mechanism for maintaining a closed state by a member, and the closing member is rotatably provided on the hanging metal fitting, and a base portion for holding the hanging metal fitting and a hanging state of the closing member in the suspended state. And a baffle plate portion that closes a space below the hanging metal fitting, and the locking mechanism includes a lock that locks the suspended member in the suspended state on the bottom plate of the recess. According to a fifth aspect of the present invention, there is provided a closing member that prevents engagement between the lifting tool and the suspension fitting, and a lock mechanism that maintains a closed state by the closure member, and the closure member is connected to the suspension fitting. A base portion for holding the suspension fitting, and a baffle plate portion for closing a space below the suspension fitting in the suspended state of the closing member, and the locking mechanism is the hanging state of the suspension member. It is characterized by comprising a lock for locking the closing member to a plate provided on the bottom plate of the recess. According to a sixth aspect of the present invention, there is provided a closing member that prevents engagement between the lifting tool and the suspension fitting, and a lock mechanism that maintains a closed state by the closure member, and the closure member is connected to the suspension fitting. It has a pair of baffle plates that are provided in a movable manner and have a substantially inverted U-shaped cross-section that covers the suspension fitting from above, and closes the space below the suspension fitting with the suspension fitting suspended. A bar that engages with a hook of a crane is provided between the baffle plates when the closing member is rotated upward, and the lock mechanism locks the hanging closing member to the bottom plate of the recess. It is characterized by comprising a lock. 7th invention is comprised by the closure member which prevents engagement with the said lifting tool and the said suspension metal fitting, and the lock mechanism which maintains the obstruction | occlusion state by this closure member, The said closure member is below the said suspension metal fitting. A baffle plate portion that closes the space, and a base end of the baffle plate portion is provided on one side wall of the recess so as to be horizontally rotatable by a hinge, and the lock mechanism includes the baffle plate It is characterized by comprising a lock that locks the baffle plate to the other side wall of the recess when positioned below. According to an eighth aspect of the present invention, there is provided a closing member that prevents engagement between the lifting tool and the suspension fitting, and a lock mechanism that maintains a closed state by the closure member, and the closure member is provided below the suspension fitting. A baffle plate portion that closes the space, and the lower side of the baffle plate portion is provided on a bottom plate of the recess so as to be able to be raised and lowered by a hinge. It consists of a lock that stops. Further, in the fourth to eighth inventions, a vertical rope hanging bracket having an open upper side is provided in a recess formed at both side corners of the top plate.It is characterized by that.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, the present invention will be described based on each embodiment shown in the drawings. 1 to 7 show a first embodiment of the present invention. In a portable engine work machine 1, a casing 2 covers a power supply source such as an engine and a generator driven by the engine. The top plate 3 of the casing 2 is formed with a recess 4 at the center, and recesses 6a and 6b that open also on the side plates 5 of the casing 2 at the corners on both sides. The recess 4 and the recesses 6a and 6b are It is partitioned by plates 3a and 3b and partition plates 3c and 3d. Between the side walls 4a and 4b of the concave portion 4, a horizontal bar 7 is hung as a hanging bracket, and the concave portions 6a and 6b are also used as a hanging bracket at both corners, but not as an original hanging bracket. Possible horizontal bar-shaped rope hooks 8 are respectively hung.
[0010]
  The bar 7 is provided with a closing member 11 that prevents engagement of a lifting tool such as a crane hook or a wire rope. The blocking member 11 is formed in a substantially inverted U-shaped cross-section covering the bar 7 from above, and is formed to be bent outward at a pair of baffle plate portions 11a and 11a sandwiching the bar 7 and at the lower ends of the baffle plate portions 11a and 11a. Flange portions 11b, 11b, and pin holes 11c, 11c formed in both baffle plate portions 11a, 11a. The pin holes 11c and 11c are provided with a headed pin 12 inserted into the pin holes 11c and 11c and a tip of the headed pin 12 protruding from one baffle plate portion 11a as a retaining member for the headed pin 12. For example, a lock mechanism including a lock such as a padlock 13 to be attached is provided.
[0011]
  When the blocking member 11 is put on the bar 7, the baffle plate portions 11a and 11a block the space below the bar 7, the flange portions 11b and 11b abut against the bottom plate 4c of the recess 4, and the pin holes 11c, 11 c is located below the bar 7. In this state, when the headed pin 12 is inserted into the pin holes 11c, 11c, the upper end of the headed pin 12 and the lower end of the bar 7 are in contact with each other without a gap, so that the closing member 11 is in a non-rotatable state. In this state, by attaching a lock such as a padlock 13 to the tip of the headed pin 12 and locking the closing member 11, the space closed state below the bar 7 can be maintained.
[0012]
  Both the rope hooks 8 are also provided with closing members 14 for preventing lifting of the work machine 1 by engaging lifting tools such as wire ropes. The blocking member 14 is formed in a substantially inverted U-shaped cross section that covers the rope hanging bracket 8 from above, and a pair of baffle plate portions 14a and 14a sandwiching the rope hanging bracket 8 and the lower end of one baffle plate portion 14a. It has a flange portion 14b that is bent to the left and pin holes 14c and 14c formed in both baffle plate portions 14a and 14a. Similarly to the closing member 11, a lock mechanism including a headed pin 12 and a lock such as a padlock 13 is attached to the pin holes 14 c and 14 c.
[0013]
  When the closing member 14 is put on the rope hanging bracket 8, the flange portion 14b of one baffle plate portion 14a comes into contact with the bottom plate 61 of the recesses 6a and 6b, and the other baffle plate portion 14a has a tip below the recesses 6a and 6b. The closing member 14 becomes non-rotatable in combination with the insertion of the headed pin 12 into the pin holes 14c, 14c located below the rope hanging bracket 8 in contact with the side plate 5. In this state, similarly to the closing member 11, the closing member 14 is locked by attaching a lock such as a padlock 13 to the tip of the headed pin 12, so that the space closing state below the rope hook 8 is closed. Can be maintained.
[0014]
  In this way, by mounting the blocking member 11 on the bar 7 and the blocking member 14 on the both rope fittings 8, the bar 7 is positioned below the bar 7 by the baffle plates 11 a and 11 a of the blocking member 11. Even if an attempt is made to rotate the closing member 11 around the bar 7, the flanges 11b, 11b abut against the bottom plate 4c of the recess 4 and the closing member 11 does not rotate. Engagement of lifting tools such as hooks and wire ropes can be prevented. In addition, since both the rope hanging brackets 8 block the space below the rope hanging bracket 8 by the both baffle plates 14a and 14a of the closing member 14, and the rotation of the closing member 14 cannot be performed. It is possible to prevent the working machine 1 from being lifted by engaging a lifting tool such as a wire rope.
[0015]
  Therefore, except when it is necessary to move the portable engine work machine 1, the closure member 11 is attached to the bar 7, and the closure member 14 is attached to the both rope hanging brackets 8, so that a crane or the like is installed. Therefore, the portable engine working machine 1 can be prevented from being stolen.
[0016]
  8 to 12 show a second embodiment. In the following embodiments, the same components as those in the first embodiment will be described with the same reference numerals. The working machine 1 according to the present embodiment includes a concave portion 9 formed continuously between the side corners of the top plate 3 in the top plate 3. The recess 9 opens to the top surface on the top plate 3 side and the side surfaces of the side plates 5, and spans the bar 7 at the center and the rope hooks 8 and 8 at the corners on both sides..
[0017]
  The closing member 51 attached to the bar 7 has a substantially inverted U-shaped cross section that covers the bar 7 from above, and abuts against baffle plate portions 51 a and 51 a that close the space below the bar 7 and the bottom plate 9 a of the recess 9. Flange portions 51b and 51b for preventing the blocking member 51 from rotating, and spacers 51c for reducing play between the blocking member 51 and the bar 7 by narrowing the gaps between the baffle plate portions 51a and 51a and the upper portion and both side portions of the bar 7. And have. The baffle plate portions 51a and 51a are formed with insertion holes 51d for the plate-like key member 17, respectively. Further, one baffle plate portion 51a is provided with a cylinder lock 23, and the key 23a of the cylinder lock 23 is rotated and inserted into the slit 17a of the key member 17 to be locked. Slit as shown in (a) Even if the key 23a inserted into 17a pulls out the key member 17, it comes into contact with the contact portions 51e and 51e formed on both sides of the insertion hole 51d on the inner surface of the baffle plate portion 51a, and the contact portions 51e and 51e. 12 is short and the bending moment fulcrum A applied to the key 23a from the key member 17 is short, the bending moment force applied to the key 23a is reduced as shown in FIG. Since the key 23a becomes smaller and hard to be deformed, the key member 17 cannot be pulled out..
[0018]
  The closing member 54 attached to the rope hanging bracket 8 also has a substantially inverted U-shaped cross section that covers the rope hanging bracket 8 from above, and one baffle plate portion 54a that closes the airframe inner space below the rope hanging bracket 8 is a flange portion. 54 b contacts the bottom plate 9 a of the recess 9, and the other baffle plate portion 54 a that closes the airframe outer space below the rope hook 8 is in contact with the side plate 5 below the recess 9. In combination with reducing the play between the closing member 54 and the rope bracket 8 by the spacer 54c on the plate portions 54a, 54a, the blocking member 54 is prevented from rotating. Similarly to the blocking member 51, the both baffle plate portions 54a and 54a are respectively formed with insertion holes 54d for the plate-like key member 17, and the key of the cylinder lock 23 provided in one baffle plate portion 54a. 23a is rotatable to engage with the slit 17a..
[0019]
  The key member 17 formed in an L shape has a locking hole 17b at the tip, and if a padlock or the like is inserted into the locking hole 17b and locked, the key member 17 does not need to be locked by the cylinder lock 23. Can not pull out.
[0020]
  FIG. 13 shows a third embodiment. A blocking member 61 for closing the space below the bar 7 includes a baffle plate portion 61a, 61a facing each other and a ceiling plate 61b connecting the upper portions of the baffle plate portions 61a, 61a. A lock such as a push button lock 32 that engages with the bottom plate 9a of the recess 9 is attached to one baffle plate portion 61a as a locking mechanism. The closing member 61 is inserted below the bar 7 so that the ceiling plate 61b is brought into contact with the lower end portion of the bar 7 or a small gap is left between the both baffle plate portions 61a and 61a to block the space below the bar 7. The closed state is maintained by engaging the key 32a of the push button lock 32 with the bottom plate 9a. Further, the closing member 63 that closes the space below the rope hook 8 is also formed in a substantially inverted U-shaped cross section in substantially the same manner as the closing member 61, and the baffle plate portions 63a and 63a and the ceiling plate 63b facing each other, The push button lock 32 attached to the baffle plate portion 63a is inserted into the lower portion of the rope hanging bracket 8 in the same manner as the closing member 61, and the rope hanging bracket 8 is inserted into the baffle plate portions 63a and 63a. The lower space is closed, and the closed state is maintained by the engagement of the key bar 32a of the push button lock 32 with the bottom plate 9a..
[0021]
  FIGS. 14 to 17 show a fourth embodiment. A portable engine work machine 1 according to an eighth embodiment, which will be described later from this embodiment, is disposed in the recess 4 in the central portion of the top plate 3. A bar 7 similar to that of each embodiment is provided, and on the other hand, in the recesses 6a and 6b on both sides, a vertical rope hook 81 having an open upper side is provided, and a wire rope is attached to the rope hooks 81 and 81. Even if it is hung, it cannot be lifted upward, and is suitable for the work machine 1 having a configuration in which the work machine 1 cannot be lifted..
[0022]
  The closing member 101 that closes the space below the bar 7 is rotatably provided on the bar 7, and includes base portions 101 a and 101 a that hold both ends of the bar 7, and a baffle plate portion 101 b that closes the space below the bar 7. And a flange portion 101c formed by bending from the lower end of the baffle plate portion 101b, and a lock such as a push button lock 32 is attached to the flange portion 101c as a lock mechanism..
[0023]
  As shown in FIG. 16, the closing member 101 can engage a lifting tool such as a crane hook or a wire rope with the bar 7 in a state where it is rotated upward. When the baffle plate portion 101b is suspended by moving the flange portion 101c, It abuts against the bottom plate 4c in the recess 4 to prevent rotation. In this state, the push button lock 32 is operated and the key bar 32a is inserted into the key hole of the bottom plate 4c to be locked to the bottom plate 4c, and the space blockage state below the bar 7 by the baffle plate portion 101b is maintained. Prevent the lifting gear from engaging.
[0024]
  FIGS. 18 and 19 show a fifth embodiment, and a closing member 111 that is rotatably provided on the bar 7 as in the fourth embodiment is a base 111 a that holds both ends of the bar 7. 111a and a baffle plate portion 111b for closing the space below the bar 7, a lock such as a cylinder lock 23 is attached to the baffle plate portion 111b as a lock mechanism, and the baffle plate portion 111b is rotated in a suspended state. The cylinder lock 23 is locked to the bottom plate 4c by engaging with the key hole of the plate 112 provided in the bottom plate 4c in the recess 4, and the space blockage state below the bar 7 by the baffle plate portion 111b is maintained and lifted to the bar 7 Prevent the tool from engaging.
[0025]
  20 and 21 show a sixth embodiment. A closing member 121 that is rotatably provided on the bar 7 has a substantially inverted U-shaped cross section that covers the bar 7 from above, and sandwiches the bar 7 therebetween. The baffle plate portions 121a and 121a that block the space below the bar 7 and a flange portion 121b that is bent outwardly at the lower end of one baffle plate 121a. The flange portion 121b has, for example, a push button lock 32 as a lock mechanism. A bar 121c for engaging the hook 122 of the crane is provided between the baffle plates 121a and 121a..
[0026]
  As shown in FIG. 20, the closing member 121 can engage the hook 122 of the crane with the bar 121c in a state where it is rotated upward, and when it is in a suspended state rotated clockwise in FIG. 121b abuts against the bottom plate 4c of the recess 4 to prevent rotation. In this state, the push button lock 32 is operated and the key bar 32a is inserted into the key hole of the bottom plate 4c so that it is locked to the bottom plate 4c, and the space blockage state below the bar 7 by both the baffle plate portions 121a and 121a is maintained. , Preventing the lifting tool from engaging the bar 7.
[0027]
  22 and 23 show a seventh embodiment, and the closing member 131 is provided below the bar 7 so as to be horizontally rotatable. The blocking member 131 includes a baffle plate portion 131 a that blocks the space below the bar 7, and a flange portion 131 b that is bent at the distal end of the baffle plate 131 a, and the base end of the baffle plate 131 a The side wall 4a is rotatably attached by a hinge 132, the flange portion 131b is provided with a push button lock 32 as a locking mechanism, and the other side wall in the recess 4 when the baffle plate 131a is positioned below the bar 7. By inserting the key bar 32a of the pushbutton lock 32 into the key hole of 4b, it is locked to the side walls 4a and 4b, and the space blockage state below the bar 7 by the baffle plate 131a is maintained, and the lifting tool is engaged with the bar 7. Prevent the combination.
[0028]
  FIG. 24 shows an eighth embodiment, and the closing member 141 is provided below the bar 7 so as to be undulated. The blocking member 141 includes a baffle plate portion 141 a that blocks the space below the bar 7, and a flange portion 141 b that is bent on the side of the baffle plate 141 a, and the lower side of the baffle plate 141 a is recessed 4 with a hinge 142. The pushbutton lock 32 is attached to the inner bottom plate 4c as a locking mechanism to the flange portion 141b, and the key bar 32a of the pushbutton lock 32 is inserted into the key hole of the side wall 4b in the recess 4 with the baffle plate 141a standing. To prevent the hook 7 from engaging with the bar 7 while maintaining the closed state of the space below the bar 7 by the baffle plate portion 141a..
[0029]
【The invention's effect】
  As described above, the anti-theft device of the present invention lifts a crane hook, a wire rope, etc. to a moving suspension bracket of a portable engine work machine except when it is necessary to move the portable engine work machine. Since it prevents the tool from engaging and prevents lifting work, It can no longer be mounted on a carrier such as a transport truck and can prevent the working machine from being stolen..
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state in which a closing member according to a first embodiment is attached.
[Fig. 2] Plan view
[Fig. 3] Same front view
FIG. 4 is a plan view of the portable engine work machine according to the first embodiment.
FIG. 5 is a cross-sectional view of a state in which a closing member is attached to the rope hook 8
FIG. 6 is a front view of a state in which a closing member is attached to the rope hook 8
FIG. 7 is a front view of the portable engine work machine according to the first embodiment.
FIG. 8 is a cross-sectional view of a closing member according to a second embodiment.
[Figure 9] SimilarlyPlaneFigure
FIG. 10Front of the blocking member 41Figure
FIG. 11Front of the closing member 44Figure
FIG.Outline showing locked state of cylinder lockFigure
FIG. 133Sectional drawing which shows the closure member of embodiment example
FIG. 144Example embodimentPlanes for subsequent portable engine work machinesFigure
Fig. 15frontFigure
FIG. 16XVI-XVI cross section of FIG. 14 showing the closing member of the fourth embodimentFigure
FIG. 17SameFront view
FIG. 18Section showing the closing member of the fifth embodimentFigure
FIG. 19Same frontFigure
FIG. 2061 shows an example embodiment closure member.partCross section
Fig. 21frontFigure
FIG. 22Plane showing the closing member of the seventh embodimentFigure
FIG. 23Also partially cross-sectionFigure
FIG. 24 shows a closing member according to an eighth embodiment.partCross section
[Explanation of symbols]
  DESCRIPTION OF SYMBOLS 1 ... Portable engine work machine, 2 ... Casing, 3 ... Top plate of casing, 4 ... Recessed part of center part of top plate, 5 ... Side plate of casing, 6a, 6b ... Recessed part of both corners of top plate, 7 ... Bar, 8, 81 ... Rope hook metal fittings, 9 ... Recesses between both side corners, 11, 14, 51, 61, 101, 111, 121, 131, 141 ... Closure members, 11a, 14a, 51a, 61a, 101b, 111b 121a, 131a, 141a ... baffle plate, 12 ... headed pin, 13 ... padlock, 62, 122, 132, 142 ... hinge, 23 ... cylinder lock

Claims

A bar-shaped hanging bracket for moving a work implement, in which a lifting tool is detachably engaged, on both side walls of a recess formed in a top plate of a casing covering a power supply source such as an engine and a generator driven by the engine. In the portable engine work machine that is hung, it is constituted by a closing member that prevents the lifting tool and the suspension fitting from being engaged with each other, and a lock mechanism that maintains a closed state by the closing member. A pair of baffle plates that cover the suspension bracket from above, block the space below the suspension bracket and sandwich the suspension bracket and the lower end abuts against the bottom plate of the recess, and the pair of baffle plate portions include the suspension plate A pin hole located below the metal fitting is formed, and the locking mechanism includes a headed pin that passes through the pin hole and passes below the hanging metal fitting, and a lock that prevents the headed pin from coming off. Portable Anti-theft device for an engine working machine.

Horizontal bar-shaped rope hanging brackets that detachably engage with lifting tools are respectively hanged in recesses formed on both side corners of the top plate to prevent engagement between the lifting tools and the rope hanging brackets. A rope hanging bracket closing member, and a rope hanging bracket locking mechanism that maintains a closed state by the rope hanging bracket closing member. The rope hanging bracket closing member includes the rope hanging bracket. Covering from above and closing the space below the rope hanging bracket with the rope hanging bracket interposed therebetween, and having a pair of baffle plate portions whose lower ends abut against the bottom plate of the concave portion of the corner portion, block the space below the rope hanging bracket A pair of baffle plate portions are formed with pin holes located below the rope hooks, and the lock mechanism for the rope hooks is inserted into the pin holes located below the rope hooks. The theft prevention of the portable engine work machine according to claim 1, comprising a headed pin that passes under the rope hanging bracket and a lock that prevents the headed pin passing under the rope hanging bracket. apparatus.

A bar-shaped hanging bracket for moving a work implement, in which a lifting tool is detachably engaged, on both side walls of a recess formed in a top plate of a casing covering a power supply source such as an engine and a generator driven by the engine. In the portable engine work machine that is hung, it is constituted by a closing member that prevents the lifting tool and the suspension fitting from being engaged with each other, and a lock mechanism that maintains a closed state by the closing member. A pair of baffle plates that cover the suspension bracket from above, block the space below the suspension bracket and sandwich the suspension bracket and the lower end abuts against the bottom plate of the recess, and the pair of baffle plate portions include the suspension plate An insertion hole located below the metal fitting is formed, and the locking mechanism includes a plate-like key member that is inserted through the insertion hole and passes below the suspension metal fitting, and a lock that prevents the key member from coming off. Characteristic possible Anti-theft device of the formula engine working machine.

A horizontal bar-shaped rope hanger that detachably engages with a lifting tool is respectively hung on both side corners of a recess formed between both side corners of the top plate, and the lifting tool and the rope hanger A rope hanging bracket blocking member that prevents engagement, and a rope hanging bracket lock mechanism that maintains a closed state by the rope hanging member closing member, the rope hanging bracket closing member, Covering the rope hanger from above, closing the space below the rope hanger with the rope hanger sandwiched, and lower end abutting one baffle plate contacting the bottom plate of the concave portion of the corner and the side plate below the concave portion The baffle plate portion that has the other baffle plate portion and closes the space below the rope hook metal fitting is formed with an insertion hole positioned below the rope hook metal fitting, and the lock for the rope hook metal fitting The structure is composed of a plate-like key member that is inserted through an insertion hole located below the rope hook and passes below the rope hook, and a lock that prevents the key member passing below the rope hook from being removed. The antitheft device for a portable engine working machine according to claim 3.

A bar-shaped hanging bracket for moving a work implement, in which a lifting tool is detachably engaged, on both side walls of a recess formed in a top plate of a casing covering a power supply source such as an engine and a generator driven by the engine. In the portable engine work machine that is hung, it is constituted by a closing member that prevents the lifting tool and the suspension fitting from being engaged with each other, and a lock mechanism that maintains a closed state by the closing member. A ceiling plate that is in contact with the suspension fitting or has a minute gap when inserted below the suspension fitting; and a pair of baffle plates that block the space below the suspension fitting; The anti-theft device for a portable engine working machine, comprising a lock for locking the closing member inserted below the metal fitting to the bottom plate of the recess.

A horizontal bar-shaped rope hanger that detachably engages with a lifting tool is respectively hung on both side walls of the concave portions at both corners of the top plate, and the lifting tool and the rope hanger are engaged with each other. A blocking member for the rope hanging bracket and a lock mechanism for the rope hanging bracket that maintains the closed state by the blocking member for the rope hanging bracket, and the blocking member for the rope hanging bracket is the rope hanging member. A ceiling plate that is in contact with the rope hanging bracket or has a minute gap when inserted below the fitting, and a pair of baffle plates that block the space below the rope hanging fitting; 6. The portable engine device according to claim 5, wherein the lock mechanism comprises a lock that locks the closing member for the rope hanging member inserted below the rope hanging member to the bottom plate of the recess. Machine anti-theft device.

A bar-shaped hanging bracket for moving a work implement, in which a lifting tool is detachably engaged, on both side walls of a recess formed in a top plate of a casing covering a power supply source such as an engine and a generator driven by the engine. In the portable engine work machine that is hung, it is constituted by a closing member that prevents the lifting tool and the suspension fitting from being engaged with each other, and a lock mechanism that maintains a closed state by the closing member. The suspension bracket is pivotally provided, and includes a base portion that holds the suspension bracket, and a baffle plate portion that blocks a space below the suspension bracket in a suspended state of the closing member. The anti-theft device for a portable engine working machine, comprising a lock that locks the suspended member in a suspended state on the bottom plate of the recess.

A bar-shaped hanging bracket for moving a work implement, in which a lifting tool is detachably engaged, on both side walls of a recess formed in a top plate of a casing covering a power supply source such as an engine and a generator driven by the engine. In the portable engine work machine that is hung, it is constituted by a closing member that prevents the lifting tool and the suspension fitting from being engaged with each other, and a lock mechanism that maintains a closed state by the closing member. The suspension bracket is pivotally provided, and includes a base portion that holds the suspension bracket, and a baffle plate portion that blocks a space below the suspension bracket in a suspended state of the closing member. An anti-theft device for a portable engine working machine, comprising a lock that locks the suspended member in a suspended state on a plate provided on a bottom plate of the recess.

A bar-shaped hanging bracket for moving a work implement, in which a lifting tool is detachably engaged, on both side walls of a recess formed in a top plate of a casing covering a power supply source such as an engine and a generator driven by the engine. In the portable engine work machine that is hung, it is constituted by a closing member that prevents the lifting tool and the suspension fitting from being engaged with each other, and a lock mechanism that maintains a closed state by the closing member. A pair of baffle plates, which are rotatably provided on the hanging metal fittings, have a substantially inverted U-shaped cross-section covering the hanging metal fittings from above, and block the space below the hanging metal fittings with the hanging metal fittings in the suspended state. A bar that engages a hook of a crane with the closing member pivoted upward is provided between the baffle plates, and the locking mechanism includes the suspended member in the suspended state and the bottom plate of the recess. Lock locked to Anti-theft device of the portable engine working machine, characterized in that Ranaru.

A bar-shaped hanging bracket for moving a work implement, in which a lifting tool is detachably engaged, on both side walls of a recess formed in a top plate of a casing covering a power supply source such as an engine and a generator driven by the engine. In the portable engine work machine that is hung, it is constituted by a closing member that prevents the lifting tool and the suspension fitting from being engaged with each other, and a lock mechanism that maintains a closed state by the closing member. A baffle plate portion that blocks a space below the hanging metal fitting, and a base end of the baffle plate portion is provided on one side wall of the recess so as to be horizontally rotatable by a hinge, and the lock mechanism includes the baffle plate The anti-theft device for a portable engine working machine, comprising: a lock that locks the baffle plate to the other side wall of the recess when is positioned below the suspension fitting.

A bar-shaped hanging bracket for moving a work implement, in which a lifting tool is detachably engaged, on both side walls of a recess formed in a top plate of a casing covering a power supply source such as an engine and a generator driven by the engine. In the portable engine work machine that is hung, it is constituted by a closing member that prevents the lifting tool and the suspension fitting from being engaged with each other, and a lock mechanism that maintains a closed state by the closing member. A baffle plate portion that closes a space below the hanging metal fitting, and a lower side of the baffle plate portion is provided on the bottom plate of the recess so as to be able to rise and fall by a hinge, and the locking mechanism is configured to hold the baffle plate in an upright state An anti-theft device for a portable engine working machine, characterized by comprising a lock that is locked to a side wall of a recess.

The theft prevention of the portable engine working machine according to any one of claims 7 to 11, wherein a vertical rope hanging metal fitting that is open on the upper side is provided in a concave portion formed on each side corner of the top plate. apparatus.