JP4302111B2 - Road paving machine safety equipment - Google Patents

Road paving machine safety equipment Download PDF

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JP4302111B2
JP4302111B2 JP2006040965A JP2006040965A JP4302111B2 JP 4302111 B2 JP4302111 B2 JP 4302111B2 JP 2006040965 A JP2006040965 A JP 2006040965A JP 2006040965 A JP2006040965 A JP 2006040965A JP 4302111 B2 JP4302111 B2 JP 4302111B2
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gas
screed
valve
emergency stop
heating device
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JP2007217990A (en
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聡 小林
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Sumitomo SHI Construction Machinery Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/40—Working platform or walkway

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  • Road Paving Machines (AREA)

Description

この発明は、道路舗装機械の安全装置に関するものであり、特に、加熱用ガスの供給を瞬時に遮断できるようにした道路舗装機械の安全装置に関するものである。   The present invention relates to a road paving machine safety device, and more particularly to a road paving machine safety device capable of instantaneously shutting off the supply of heating gas.

アスファルトフィニッシャ等の道路舗装機械は、加熱されたアスファルト混合材を敷き均すスクリードプレートにアスファルト混合材が付着するのを防止するため、スクリードプレートをアスファルト混合材と同温度（150〜200℃程度）に加熱する加熱装置が備えられている（例えば、特許文献１）。   Road paving machines such as asphalt finishers have the same temperature as the asphalt mixture (about 150-200 ° C) to prevent the asphalt mixture from adhering to the screed plate that spreads and smoothes the heated asphalt mixture. Is provided with a heating device (for example, Patent Document 1).

加熱装置の熱源としてはLPガスや軽油を用いるものが多く、LPガスを用いる道路舗装機械においては、ガスボンベ収容部へ装着したLPガスボンベから加熱装置へLPガスを供給し、加熱装置でLPガスを燃焼させ、その熱風をスクリ−ド装置内に流すことでスクリ−ド装置に取付けられているスクリードプレートを均一に加熱する。舗装作業の終了時やLPガスボンベの交換時には、LPガスボンベに備えられている開閉バルブを操作してガス出口を閉じ、ガスが漏出しないようにしている。
実開平7-31910号公報 Many heat sources use LP gas or light oil as the heat source of the heating device. In road paving machines that use LP gas, LP gas is supplied to the heating device from the LP gas cylinder installed in the gas cylinder housing, and LP gas is supplied by the heating device. The screed plate attached to the screen device is uniformly heated by burning and flowing the hot air into the screen device. When paving work is finished or when the LP gas cylinder is replaced, the gas outlet is closed by operating an open / close valve provided in the LP gas cylinder so that the gas does not leak.
Japanese Utility Model Publication No.7-31910

道路舗装機械の稼動時において、バーナーの火が立ち消えたりしてガスが漏れた場合は、引火の虞があるためガスを至急遮断する必要がある。若し、このようなガス漏れが起きた場合、従来はLPガスボンベの収容部へ移動し、LPガスボンベに備えられている開閉バルブを手で回転してガス出口を閉じなければならず、ガス供給を停止するまでに時間がかかり、迅速性に欠けるという問題がある。   When the road paving machine is in operation, if the burner is extinguished or gas leaks, it is necessary to shut off the gas immediately because there is a risk of ignition. If such a gas leak occurs, it has been necessary to move to the LP gas cylinder's housing and rotate the open / close valve provided in the LP gas cylinder by hand to close the gas outlet. There is a problem that it takes time to stop and lacks speed.

そこで、本発明は、ガス供給を緊急に停止する必要が生じたときに、迅速にガスを遮断できるようにして安全性を向上することを目的とするものである。   Accordingly, the present invention aims to improve safety by enabling gas to be shut off quickly when it is necessary to urgently stop the gas supply.

この発明は、上記目的を達成するために提案するものであり、スクリード装置と、スクリード装置のスクリードプレートを熱するガス式加熱装置を備えた道路舗装機械において、
該道路舗装機械の後部に設けられた運転席から離れた位置に搭載されるガスボンベと、該ガスボンベと加熱装置を接続するガス配管中に設けられた手動操作式開閉弁との間に電磁開閉弁を設けるとともに、
該電磁開閉弁を閉じる非常停止スイッチを設け、該非常停止スイッチを操作することにより、前記電磁開閉弁を閉じて加熱装置へのガス供給を遮断できるように構成して成り、
更に、上記非常停止スイッチを少なくとも運転席の計器盤とスクリード装置の左右両端に配置した道路舗装機械の安全装置を提供するものである。
The present invention proposes to achieve the above object, and in a road pavement machine provided with a screed device and a gas heating device for heating a screed plate of the screed device,
An electromagnetic on-off valve between a gas cylinder mounted at a position away from a driver seat provided at the rear of the road paving machine and a manually operated on-off valve provided in a gas pipe connecting the gas cylinder and a heating device And providing
The switch valve is closed to provide an emergency stop switch, by operating the emergency stop switch, become configured to be cut off the gas supply to the heating device by closing the solenoid valve,
Furthermore, the present invention provides a safety device for a road paving machine in which the emergency stop switch is disposed at least on the left and right ends of the instrument panel of the driver's seat and the screed device .

本発明の道路舗装機械の安全装置は、非常停止スイッチを操作することにより、
ガス配管に設けた電磁開閉弁が閉じて、加熱装置へのガス供給を遮断するので、従来の手動式開閉弁を操作して管路を閉じる構成よりも著しく迅速にガス供給を遮断でき、ガス漏れなどが生じた場合の引火や爆発などの危険回避に効果を奏する。作業の実践にわたり敷衍して説明すると、若し、舗装作業中に加熱装置にガス漏れなどが起こった場合、操作者がスクリード装置の近くにいる場合は、最寄りのスクリードスイッチボックスのＬＰＧ非常停止スイッチを押し、運転席にいる場合は、操作盤のＬＰＧ非常停止スイッチを押せば、電磁開閉弁の駆動電流が遮断されて電磁開閉弁が閉じ、加熱装置へのガス供給が瞬時に遮断され、手動操作式開閉弁を閉じる場合よりも著しく迅速にガス供給を停止することができる。

















The safety device of the road paving machine of the present invention operates the emergency stop switch,
Since the electromagnetic on-off valve provided in the gas pipe is closed and the gas supply to the heating device is shut off, the gas supply can be shut off significantly faster than the conventional configuration where the pipe is closed by operating the manual on-off valve. It is effective in avoiding dangers such as ignition and explosion in case of leakage. To explain the work in practice, if there is a gas leak in the heating device during paving, or if the operator is near the screed device, the LPG emergency stop switch of the nearest screed switch box If you are in the driver's seat and press the LPG emergency stop switch on the operation panel, the drive current of the solenoid on / off valve is shut off and the solenoid on / off valve is closed, and the gas supply to the heating device is instantly shut off. The gas supply can be stopped significantly faster than when the operation type on-off valve is closed.

















この発明は、スクリード装置と、スクリード装置のスクリードプレートを熱するガス式加熱装置を備えた道路舗装機械において、ガスボンベと加熱装置を接続するガス配管中に電磁開閉弁を設けるとともに、前記電磁開閉弁を閉じる非常停止スイッチを設け、非常停止スイッチを操作することにより、電磁開閉弁を閉じて加熱装置へのガス供給を遮断できるように構成することにより、ガス供給を緊急に停止する必要が生じたときに、迅速にガスを遮断できるようにして安全性を向上するという目的を達成した。   The present invention provides a road pavement machine including a screed device and a gas heating device for heating a screed plate of the screed device, wherein an electromagnetic on-off valve is provided in a gas pipe connecting the gas cylinder and the heating device, and the electromagnetic on-off valve The emergency stop switch is closed, and by operating the emergency stop switch, it is necessary to close the electromagnetic on-off valve and shut off the gas supply to the heating device. Sometimes it achieved the goal of improving safety by allowing gas to be shut off quickly.

図１及び図２はアスファルトフィニッシャ1を示し、車体2の前部にホッパー3が設けられていて、車体2の後部に左右伸縮式のスクリード装置4が連結されている。前部のホッパー3に投入されたアスファルト合材は、車体内の下部に備えられているバーコンベヤ（図示せず）によりコンベヤ台板上を後方へ搬送されてスクリード装置4の前方の路面へ撒布され、アスファルトフィニッシャ1の前進に伴いスクリード装置4によって均等な厚さに敷き均される。   1 and 2 show an asphalt finisher 1, a hopper 3 is provided at the front portion of the vehicle body 2, and a left and right telescoping screed device 4 is connected to the rear portion of the vehicle body 2. The asphalt mixture put in the front hopper 3 is conveyed rearward on the conveyor base plate by a bar conveyor (not shown) provided in the lower part of the vehicle body and distributed to the road surface in front of the screed device 4. Then, as the asphalt finisher 1 advances, the screed device 4 spreads it to an equal thickness.

車体2上の後部には進行方向へ向かって右側に運転席5が設けられており、運転席とは反対の左端側にLPガスボンベ6が装着されている。LPガスボンベ6の継ぎ手には車体2に供えられているガス配管（図示せず）が接続され、LPガスボンベ6からスクリード装置4内の加熱装置（ガスバーナー）へLPガスが供給される。スクリード装置4の左右両端には門型のパイプフレーム7が設けられていて、図２に示すように、左右のパイプフレーム7上に夫々スクリードスイッチボックス8，9が取付けられている。   A driver's seat 5 is provided on the right side in the traveling direction on the rear part of the vehicle body 2, and an LP gas cylinder 6 is mounted on the left end side opposite to the driver's seat. A gas pipe (not shown) provided to the vehicle body 2 is connected to the joint of the LP gas cylinder 6, and LP gas is supplied from the LP gas cylinder 6 to a heating device (gas burner) in the screed device 4. Gate-type pipe frames 7 are provided at both left and right ends of the screed device 4, and screed switch boxes 8 and 9 are mounted on the left and right pipe frames 7, respectively, as shown in FIG.

図３に示すように、スクリードスイッチボックス8，9の上面には、レベリング調整スイッチ10、スクリュースイッチ11、スクリード伸縮スイッチ12などが配置されており、上側側面に設けられているコネクタ13に信号ケーブル（図示せず）が接続され、スクリードの幅方向への伸縮調整や水平度の調整などはスクリードスイッチボックス8，9を介して行われる。また、スクリードスイッチボックス8，9の下側側面には、本発明の安全装置の構成要素であるLPG非常停止スイッチ14，15が設けられており、図４に示すように運転席5の直前の計器盤5aにもLPG非常停止スイッチ16が設けられている。   As shown in FIG. 3, a leveling adjustment switch 10, a screw switch 11, a screed telescopic switch 12 and the like are arranged on the upper surface of the screed switch boxes 8 and 9, and a signal cable is connected to the connector 13 provided on the upper side surface. (Not shown) is connected, and the expansion / contraction adjustment in the width direction of the screed and the adjustment of the horizontality are performed through the screed switch boxes 8 and 9. In addition, LPG emergency stop switches 14 and 15 which are components of the safety device of the present invention are provided on the lower side surfaces of the screed switch boxes 8 and 9, as shown in FIG. An LPG emergency stop switch 16 is also provided on the instrument panel 5a.

図５はアスファルトフィニッシャ1のガス配管の回路図であり、21はLPガスボンベ6に備えられている手動操作式開閉弁、22はアスファルトフィニッシャ1のガス配管、23は加熱装置、24は加熱装置23の上流に設けられている手動操作式開閉弁であり、これらは従来の構成と同一であるが、本発明ではガス配管22中に電磁開閉弁25を設け、この電磁開閉弁25をLPG非常停止スイッチ14，15，16で操作するように構成している。   FIG. 5 is a circuit diagram of the gas piping of the asphalt finisher 1, 21 is a manually operated on-off valve provided in the LP gas cylinder 6, 22 is a gas piping of the asphalt finisher 1, 23 is a heating device, and 24 is a heating device 23. This is a manually operated on-off valve provided upstream of these, which is the same as the conventional configuration, but in the present invention, an electromagnetic on-off valve 25 is provided in the gas pipe 22, and this electromagnetic on-off valve 25 is LPG emergency stop. It is configured to operate with switches 14, 15, and 16.

アスファルトフィニッシャ1の電源がオンの場合、図５のように電磁開閉弁25は開いていて、加熱装置23へガス供給が可能であり、ガス配管22の手動操作式開閉弁24を開くことにより加熱装置23へLPガスが供給されて加熱装置23を使用することができる。   When the power of the asphalt finisher 1 is on, the electromagnetic on-off valve 25 is open as shown in FIG. 5 and gas can be supplied to the heating device 23. Heating is performed by opening the manually operated on-off valve 24 of the gas pipe 22. The LP gas is supplied to the device 23 and the heating device 23 can be used.

若し、舗装作業中に加熱装置23にガス漏れなどが起こった場合、操作者がスクリード装置4の近くにいる場合は、最寄りのスクリードスイッチボックス8または9のLPG非常停止スイッチ14または15を押し、運転席5にいる場合は、操作盤5aのLPG非常停止スイッチ16を押せば、電磁開閉弁25の駆動電流が遮断されて電磁開閉弁25が閉じ、加熱装置23へのガス供給が瞬時に遮断され、手動操作式開閉弁24を閉じる場合よりも著しく迅速にガス供給を停止することができる。   If a gas leak occurs in the heating device 23 during paving, or if the operator is near the screed device 4, press the LPG emergency stop switch 14 or 15 in the nearest screed switch box 8 or 9. If you are in the driver's seat 5, if you press the LPG emergency stop switch 16 on the operation panel 5a, the drive current of the electromagnetic on / off valve 25 is cut off, the electromagnetic on / off valve 25 is closed, and the gas supply to the heater 23 is instantaneous The gas supply can be stopped significantly faster than when the manually operated on-off valve 24 is shut off.

尚、図５は、三つのLPG非常停止スイッチ14，15，16を直列接続した例を示したが、これは一例であり、三つのLPG非常停止スイッチ14，15，16のそれぞれを電磁弁コントローラ（図示せず）へ個別に接続し、電磁弁コントローラが三つのLPG非常停止スイッチ14，15，16のいずれかのオフ状態に応じて電磁開閉弁25を閉じるように構成してもよく、上記の実施形態に限定するものではない。また、この発明はこの発明の技術的範囲内において種々の改変が可能であり、この発明がそれらの改変されたものに及ぶことは当然である。   FIG. 5 shows an example in which three LPG emergency stop switches 14, 15, 16 are connected in series, but this is an example, and each of the three LPG emergency stop switches 14, 15, 16 is connected to a solenoid valve controller. The solenoid valve controller may be connected individually (not shown), and the solenoid valve controller may be configured to close the solenoid on / off valve 25 according to the off state of any of the three LPG emergency stop switches 14, 15, 16 It is not limited to the embodiment. Further, the present invention can be variously modified within the technical scope of the present invention, and the present invention naturally extends to those modified.

アスファルトフィニッシャを示し、(a)は側面図、(b)は背面図である。An asphalt finisher is shown, (a) is a side view and (b) is a rear view. アスファルトフィニッシャの背面側の斜視図。The perspective view of the back side of an asphalt finisher. (L)(R)は夫々スクリードスイッチボックスの正面図。(L) and (R) are front views of the screed switch box. アスファルトフィニッシャの運転席部分の平面図。The top view of the driver's seat part of an asphalt finisher. 安全装置の回路図。The circuit diagram of a safety device.

符号の説明Explanation of symbols

1 アスファルトフィニッシャ
2 車体
3 ホッパー
4 スクリード装置
5 運転席
5a 計器盤
6 LPガスボンベ
7 パイプフレーム
8 スクリードスイッチボックス
9 スクリードスイッチボックス
14 LPG非常停止スイッチ
15 LPG非常停止スイッチ
16 LPG非常停止スイッチ
21 手動操作式開閉弁
22 ガス配管
23 加熱装置
24 手動操作式開閉弁
25 電磁開閉弁
1 Asphalt finisher
2 Body
3 Hopper
4 Screed device
5 Driver's seat
5a Instrument panel
6 LP gas cylinder
7 Pipe frame
8 Screed switch box
9 Screed switch box
14 LPG emergency stop switch
15 LPG emergency stop switch
16 LPG emergency stop switch
21 Manually operated on-off valve
22 Gas piping
23 Heating device
24 Manually operated on-off valve
25 Solenoid valve

Claims (1)

スクリード装置と、スクリード装置のスクリードプレートを熱するガス式加熱装置を備えた道路舗装機械において、
該道路舗装機械の後部に設けられた運転席から離れた位置に搭載されるガスボンベと、該ガスボンベと加熱装置を接続するガス配管中に設けられた手動操作式開閉弁との間に電磁開閉弁を設けるとともに、
該電磁開閉弁を閉じる非常停止スイッチを設け、該非常停止スイッチを操作することにより、前記電磁開閉弁を閉じて加熱装置へのガス供給を遮断できるように構成して成り、
更に、上記非常停止スイッチを少なくとも運転席の計器盤とスクリード装置の左右両端に配置したことを特徴とする道路舗装機械の安全装置。 In road paving machines equipped with a screed device and a gas heating device that heats the screed plate of the screed device,
An electromagnetic on-off valve between a gas cylinder mounted at a position away from a driver seat provided at the rear of the road paving machine and a manually operated on-off valve provided in a gas pipe connecting the gas cylinder and a heating device And providing
The switch valve is closed to provide an emergency stop switch, by operating the emergency stop switch, become configured to be cut off the gas supply to the heating device by closing the solenoid valve,
Furthermore, the safety device for a road pavement machine is characterized in that the emergency stop switch is disposed at least on the left and right ends of the instrument panel of the driver's seat and the screed device.
JP2006040965A 2006-02-17 2006-02-17 Road paving machine safety equipment Active JP4302111B2 (en)

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JP4302111B2 true JP4302111B2 (en) 2009-07-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4885198B2 (en) * 2008-11-21 2012-02-29 住友建機株式会社 Gas safety device for road paving machine
JP2017089325A (en) * 2015-11-16 2017-05-25 住友建機株式会社 Asphalt finisher
JP6280603B1 (en) * 2016-09-06 2018-02-14 高橋土建株式会社 Automotive asphalt mixture heating and stirring device

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