JP7766293B2 - Anti-scattering device equipped with an open/close state detection device - Google Patents
Anti-scattering device equipped with an open/close state detection deviceInfo
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Description
本発明は、土砂等を運搬するダンプトラックの荷台に取り付けられ、当該ダンプトラックに積載された土砂等が荷台から飛散することを防ぐ飛散防止装置に開閉状態検出装置を設置することに関する。 The present invention relates to the installation of an open/closed state detection device in a scattering prevention device that is attached to the bed of a dump truck that transports earth and sand, etc., and prevents earth and sand, etc. loaded on the dump truck, from scattering from the bed.
図１は、本発明で採用する飛散防止装置の概要を示すものである。一般に土砂等を運搬するダンプトラックにあっては、積載した土砂が荷台から飛散することを防ぐために、荷台の両側壁１に飛散防止装置を取り付けることがおこなわれている。
この飛散防止装置においては、梯子状の枠部材に樹脂製のシートを展設した一対の本体部２が、両側壁１の上縁に沿って設置されている。この本体部２の側壁１と接する長辺を構成する枠部材からは、その長辺の延長線に沿ってダンプトラックの前後方向に一対のシャフト３ａ、３ｂが突出しており、側壁１の両端付近に固定された一対の軸受け（図示せず）に支持されている。
1 shows an outline of the anti-scattering device employed in the present invention. In general, in dump trucks used for transporting earth and sand, etc., anti-scattering devices are attached to both side walls 1 of the loading platform to prevent the loaded earth and sand from scattering from the loading platform.
In this anti-scattering device, a pair of main bodies 2, each consisting of a ladder-shaped frame member with a resin sheet stretched over it, are installed along the upper edges of both side walls 1. A pair of shafts 3a, 3b protrude from the frame member that forms the long side of the main body 2 that contacts the side wall 1 in the longitudinal direction of the dump truck along the extension of that long side, and are supported by a pair of bearings (not shown) fixed near both ends of the side wall 1.
一対の本体部２は、軸受けに設けられた駆動手段により、又は手動により、このシャフト３ａ、３ｂを中心軸にして両側壁１の内側と外側に傾動させることができる。図１は、土砂等を積み込んだ後に、前記本体部２を側壁１の内側に倒した状態を示すものある。このように、本体部２を内側に倒した状態を保持して走行することで、運搬時における土砂等の落下や飛散を防ぐことができる（特許文献１）。
したがって、従来の飛散防止装置は、本体部２、シャフト３ａ、３ｂ、軸受け及び必要に応じて本体部２の開閉をおこなう駆動手段から構成されている。この飛散防止装置は、例えば、コボレーン（登録商標）などと呼ばれ、土砂等を運搬するダンプトラックにおいて広く普及している。
The pair of main bodies 2 can be tilted inward and outward of the side walls 1 around the shafts 3a, 3b as a central axis by a driving means provided in the bearings or manually. Figure 1 shows the main bodies 2 tilted inward of the side walls 1 after loading soil, sand, etc. By traveling with the main bodies 2 tilted inward in this way, it is possible to prevent soil, sand, etc. from falling or scattering during transportation (Patent Document 1).
Therefore, a conventional anti-scattering device is composed of a main body 2, shafts 3a and 3b, bearings, and a drive means for opening and closing the main body 2 as needed. This type of anti-scattering device is called, for example, Koborane (registered trademark), and is widely used in dump trucks that transport earth and sand.
図２は、本体部２を側壁１の外側に傾斜した状態を示す。パワーショベル等の重機を用いて土砂等を荷台へ積載する際には、一対の本体部２は、積み上げの邪魔にならないようそれぞれの側壁１の外側に傾斜させることが通常おこなわれている。
そして、荷積みが終了してダンプトラックが走行する段階になると、一対の本体部２は荷台の内側へ倒して荷台上の土砂が両側壁から落下したり飛散したりすることを防いでいる。
2 shows a state in which the main body 2 is tilted outward from the side wall 1. When loading earth and sand onto a loading platform using heavy machinery such as a power shovel, the pair of main body parts 2 are usually tilted outward from the respective side walls 1 so as not to interfere with the stacking.
When loading is completed and the dump truck is ready to travel, the pair of main body parts 2 are folded inward toward the inside of the loading platform to prevent soil and sand on the loading platform from falling or scattering from the side walls.
このように、本体部２は、荷物の積載中には荷台の両側壁１から外側に向けて張り出して開き、荷物の積み込みが終わってダンプトラックが走行する際には、荷台の内側へ倒して使用されている。しかし、作業員の不注意により、本体部２を荷台の両側壁１から外側へ向けて開いたままで、ダンプトラックの運転を開始してしまう事態が時折発生していた。
ダンプトラックがこのような状態で道路を走行すると、他の走行車両との関係で危険であるばかりでなく、外側に張り出した本体部２が高速道路の料金所ブースと接触し、これを破壊してしまう事故が発生することがあった。
In this way, the main body 2 opens outward from both side walls 1 of the loading platform while cargo is being loaded, and when the loading of cargo is finished and the dump truck is about to start moving, it is folded down toward the inside of the loading platform. However, due to carelessness on the part of the worker, there have been occasional cases where the dump truck has started moving with the main body 2 still open outward from both side walls 1 of the loading platform.
If a dump truck were to travel on the road in this state, not only would it be dangerous in relation to other vehicles, but there was also the possibility of the outward-hanging main body 2 coming into contact with a toll booth on the expressway and destroying it.
本発明は、このような現状に鑑みてなされたもので、上記した事故が発生することを防ぐことを目的とするものである。すなわち、ダンプトラックを運転する作業員が本体部２を荷台の内側へ倒すことを失念し、荷台の両側壁１から外側へ張り出した状態でダンプトラックを走行させることを防止する手段を提供することを目的としている。 The present invention was developed in light of this current situation, and aims to prevent the above-mentioned accidents from occurring. In other words, the purpose is to provide a means to prevent the operator of a dump truck from forgetting to tilt the main body 2 inward toward the inside of the loading platform, causing the dump truck to travel with the main body 2 extending outward from both side walls 1 of the loading platform.
上記目的を達成するため、請求項１に記載の発明は、荷台の両側壁１の上縁に設置された一対の本体部２を備える飛散防止装置において、本体部２の開閉状態検出装置と警報装置を備え、ダンプトラックの走行開始時に前記本体部２の開閉状態を検出し、本体部２が荷台の両側壁１から外側へ向けて開いている場合には、作業員に警報を発するように構成したことを特徴とする。 To achieve the above objective, the invention described in claim 1 is characterized by a scattering prevention device comprising a pair of main bodies 2 installed on the upper edges of both side walls 1 of the loading platform, which is equipped with an open/closed state detection device for the main bodies 2 and an alarm device, and is configured to detect the open/closed state of the main bodies 2 when the dump truck begins to move, and to sound an alarm to an operator if the main bodies 2 are open outward from both side walls 1 of the loading platform.
請求項２に記載の発明は、請求項１に記載の発明において、前記本体部２の開閉状態検出装置が磁気検出手段によるものであることを特徴とし、具体的には前記本体部のシャフトに設けた磁性体と、荷台の側壁上に設けた磁気センサーからなる。 The invention described in claim 2 is characterized in that, in the invention described in claim 1, the open/closed state detection device for the main body 2 is a magnetic detection means, specifically consisting of a magnetic body attached to the shaft of the main body and a magnetic sensor attached to the side wall of the loading platform.
請求項４に記載の発明は、請求項１に記載の発明において、前記本体部２の開閉状態検出装置が機電接点手段によるものであることを特徴とし、具体的には前記本体部のシャフトに設けた押圧部材と、荷台の側壁上に設けたスイッチ装置からなる。 The invention described in claim 4 is characterized in that, in the invention described in claim 1, the open/closed state detection device of the main body 2 is an electromechanical contact means, and specifically, it consists of a pressing member provided on the shaft of the main body and a switch device provided on the side wall of the loading platform.
請求項６に記載の発明は、請求項１～５の何れかに記載の発明において、前記警報装置が、警報音を発するブザー、及び／又は、点滅光を含む光を発するするライトであることを特徴とする。 The invention described in claim 6 is the invention described in any one of claims 1 to 5, characterized in that the alarm device is a buzzer that emits an alarm sound and/or a light that emits light, including flashing light.
本発明の構成によれば、荷物の積み込みが終わって本体部２を荷台の内側へ倒すことを作業員が失念した場合であっても、作業員がダンプトラックを走行させようとした段階で、作業員に対して警報が発せられるので、本体部２が荷台の両側壁から外側へ向けて開放された状態で走行することに起因する事故を未然に防ぐことができる。 With this configuration, even if a worker forgets to tilt the main body 2 inward toward the inside of the loading platform after loading the cargo, an alarm is sounded to the worker when he or she attempts to drive the dump truck. This prevents accidents that may occur when the main body 2 is driven with the main body 2 open toward the outside from both side walls of the loading platform.
以下に本発明の実施の形態を添付図面に基づいて説明する。 The following describes an embodiment of the present invention with reference to the accompanying drawings.
（開閉状態検出装置）
本発明の飛散防止装置においては、前記した従来の飛散防止装置の構成に加えて、本体部２の開閉状態検出装置４及び警報装置を有する。この開閉状態検出装置４は、図１のシャフト３ａに接続して設置される。この検出手段として、具体的には、マグネットを利用する磁気検出手段、あるいは、スイッチを利用する機電接点手段を用いることができる。さらには、光、電波、あるいは音波を利用して本体部２の開閉状態を検出してもよい。
以下では、磁気検出手段と機電接点手段について詳述する。
(Open/close state detection device)
The anti-scattering device of the present invention includes, in addition to the components of the conventional anti-scattering device described above, a device 4 for detecting the open/closed state of the main body 2 and an alarm device. This device 4 is installed by connecting it to the shaft 3a shown in FIG. 1. Specifically, this detection means may be a magnetic detection means using a magnet or an electromechanical contact means using a switch. Furthermore, the open/closed state of the main body 2 may be detected using light, radio waves, or sound waves.
The magnetic detection means and electromechanical contact means will be described in detail below.
（磁気検出手段）
図３は、磁気検出手段の内容を示す概念図である。
図３に示す通り、シャフト３ａの一部にはシャフト３ａの略半円部分を覆うように磁性体５が固定され、荷台の側壁上に磁気センサー６が設置されている。そして、飛散防止装置の本体部２が垂直方向に起立又は両側壁１の内側に倒れている場合には、図３（ａ）に示される通り、磁性体５は磁気センサー６から離間しているので磁気センサー６は反応しない。しかし、図３（ｂ）に示されるように、本体部２が荷台の両側壁１から外側へ向けて開いている場合には、シャフト３ａの略半円部分を覆っている磁性体が磁気センサー６に接近し、磁気センサー６が磁性体５の磁気に反応して電気出力を発生する。この状態のままでダンプトラックが走行を開始すると、ドライバーである作業員に警報が発せられる。
(Magnetic detection means)
FIG. 3 is a conceptual diagram showing the contents of the magnetic detection means.
As shown in Figure 3, a magnetic body 5 is fixed to a portion of the shaft 3a so as to cover the approximately semicircular portion of the shaft 3a, and a magnetic sensor 6 is installed on the side wall of the loading platform. When the main body 2 of the anti-scattering device is upright or tilted inward between both side walls 1, as shown in Figure 3(a), the magnetic body 5 is separated from the magnetic sensor 6, and the magnetic sensor 6 does not react. However, when the main body 2 is open outward from both side walls 1 of the loading platform as shown in Figure 3(b), the magnetic body covering the approximately semicircular portion of the shaft 3a approaches the magnetic sensor 6, and the magnetic sensor 6 reacts to the magnetism of the magnetic body 5 and generates an electrical output. If the dump truck starts moving in this state, an alarm is sounded to the driver, who is an operator.
（機電接点手段）
図４は、機電接点手段の内容を示す概念図である。
シャフト３ａには、シャフト３ａの略半円部分を覆うように押圧部材７が固定され、前記押圧部材７の下部にはスイッチ装置８が設置されている。そして、飛散防止装置の本体部２が垂直方向に起立又は両側壁１の内側に倒れている場合には、図４（ａ）に示される通り、押圧部材７はスイッチ装置８から離間しているのでスイッチは押されない。しかし、図４（ｂ）に示されるように、本体部１が荷台両側壁１から外側へ向けて開いている場合には、シャフト３ａの略半円部分を覆っている押圧部材７がスイッチ装置８に接近してスイッチを押圧し、電気出力を発生する。この状態でダンプトラックが走行を開始すると、ドライバーである作業員に警報が発せられる。
(Mechanical and electrical contact means)
FIG. 4 is a conceptual diagram showing the contents of the electromechanical contact means.
A pressing member 7 is fixed to the shaft 3a so as to cover the approximately semicircular portion of the shaft 3a, and a switch device 8 is installed below the pressing member 7. When the main body 2 of the anti-scattering device is upright or tilted inwardly between the side walls 1, as shown in Figure 4(a), the pressing member 7 is separated from the switch device 8 and the switch is not pressed. However, when the main body 1 is open outwardly from the side walls 1 of the loading platform as shown in Figure 4(b), the pressing member 7 covering the approximately semicircular portion of the shaft 3a approaches the switch device 8 and presses the switch, generating an electrical output. When the dump truck starts traveling in this state, an alarm is sounded to the driver, who is an operator.
（警報装置）
警報装置は、飛散防止装置の本体部１が荷台の両側部１の外側に開いたままダンプトラックが走行を開始することをドライバーに知らせるものである。警告音が断続的に鳴り続けることやライトの光が点滅することで警報を発する。ドライバーは、この警報に接することで、本体部２が荷台の両側壁１から外側へ開いたままであることを察知し、本体部２を荷台内に倒すことができる。
警報は、運転席内の適当な位置に設置したブザーから警告音を発すること、及び／又は、ドライバーから見やすい位置に設置したライトから点滅光を含む光を発することでおこなう。
(Alarm device)
The warning device notifies the driver that the dump truck will start moving with the main body 1 of the anti-scattering device still open outward from both side walls 1 of the loading platform. The warning is issued by an intermittent warning sound and a flashing light. Upon hearing this warning, the driver realizes that the main body 2 of the anti-scattering device is still open outward from both side walls 1 of the loading platform, and can tilt the main body 2 into the loading platform.
The warning is given by emitting a warning sound from a buzzer installed in an appropriate position in the driver's seat and/or by emitting a light, including a flashing light, from a light installed in a position that is easily visible to the driver.
（電気配線）
図５は、本発明で採用する飛散防止装置に関する電気配線図を示すもので、４が本体部２の開閉状態検出装置であり、上記した磁気検出手段又は機電接点手段で構成することができる。
飛散防止装置の本体部２が両側壁１の外側へ傾斜した状態では、開閉状態検出装置４のスイッチはオンの状態である。その状態で、ダンプトラックのエンジンを始動させるためにイグニッションスイッチがオンになると電気回路が開通し、ブザーから警告音及び／又はライトから点滅光が発せられ、ドライバーに対して本体部２が両側壁１の外側に開いた状態であることを警告する。この警告を受けて、ドライバーは本体部２を両側壁１の内側へ倒すことができる。
(Electrical wiring)
FIG. 5 shows an electrical wiring diagram for the anti-scattering device employed in the present invention, in which 4 is a device for detecting the open/closed state of the main body 2, which can be constructed from the above-mentioned magnetic detection means or electromechanical contact means.
When the main body 2 of the anti-scattering device is tilted outward from both side walls 1, the switch of the open/closed state detection device 4 is in the on state. In this state, when the ignition switch is turned on to start the dump truck engine, an electric circuit is opened, and a warning sound is emitted from the buzzer and/or a flashing light is emitted from the light, warning the driver that the main body 2 is in an open state outward from both side walls 1. Upon receiving this warning, the driver can tilt the main body 2 inward from both side walls 1.
その他、本発明は、以上説明した実施の形態に適用が限定されるものではなく、特許請求の範囲及び明細書と図面に記載された技術的思想の範囲内で種々の変形が可能であることは勿論である。 In addition, the present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the claims and the technical concept described in the specification and drawings.
１ 荷台の側壁
２ 飛散防止装置の本体部
３ａ、３ｂ シャフト
４ 開閉状態検出装置
５ 磁性体
６ 磁気センサー
７ 押圧部材
８ スイッチ装置
DESCRIPTION OF SYMBOLS 1 Side wall of loading platform 2 Main body of scattering prevention device 3a, 3b Shaft 4 Open/closed state detection device 5 Magnetic body 6 Magnetic sensor 7 Pressing member 8 Switch device
Claims (2)
前記開閉状態検出装置は、前記本体部の傾斜動作と一体に角回転するシャフトに設けた磁性体と、前記荷台の側壁上において前記本体部が外側へ開いたとき前記磁性体に対面する位置に設けた磁気センサーからなる磁気検出手段であり、
前記開閉状態検出装置は、その電気配線に、前記ダンプトラックのエンジンを始動させるためのイグニッションスイッチと、前記本体部が両側壁の外側へ開いた状態ではオンになる当該開閉状態検出装置のスイッチと、前記警報装置とを直列に連結して備えており、
前記ダンプトラックのエンジン始動のために前記イグニッションスイッチが閉じられると、前記本体部が前記荷台の両側壁から外側へ開いているとき、前記警報装置が動作することを特徴とする飛散防止装置。 A scattering prevention device having a pair of main bodies installed on the upper edges of both side walls of a dump truck bed, the device further comprising an open/closed state detection device for the main bodies and an alarm device,
The open/closed state detection device is a magnetic detection means including a magnetic body provided on a shaft that rotates angularly together with the tilting movement of the main body, and a magnetic sensor provided on a side wall of the loading platform at a position facing the magnetic body when the main body is opened outward ,
The open/closed state detection device has an ignition switch for starting an engine of the dump truck , a switch of the open/closed state detection device that is turned on when the main body is opened outward from both side walls , and the alarm device, all connected in series to its electrical wiring,
A scattering prevention device characterized in that when the ignition switch is closed to start the engine of the dump truck, the alarm device is activated when the main body opens outward from both side walls of the loading platform.
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| JP2601401Y2 (en) * | 1991-10-14 | 1999-11-22 | 日産ディーゼル工業株式会社 | Dump vessel canopy control device |
| JP6551896B1 (en) * | 2018-10-24 | 2019-07-31 | 有限会社沖田建材 | Cargo seat opening alarm device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002204512A (en) | 2001-01-05 | 2002-07-19 | Aichi Corp | Work vehicle |
| US10106175B1 (en) | 2018-03-28 | 2018-10-23 | DiCAN, Inc. | Alert system and method for vehicle with extendable service component |
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