JP2020083122A5 - - Google Patents

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JP2020083122A5
JP2020083122A5 JP2018221941A JP2018221941A JP2020083122A5 JP 2020083122 A5 JP2020083122 A5 JP 2020083122A5 JP 2018221941 A JP2018221941 A JP 2018221941A JP 2018221941 A JP2018221941 A JP 2018221941A JP 2020083122 A5 JP2020083122 A5 JP 2020083122A5
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Japan
Prior art keywords
chamber
air
supplied
brake
vehicle
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JP2018221941A
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Japanese (ja)
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JP7186589B2 (en
JP2020083122A (en
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Priority claimed from JP2018221941A external-priority patent/JP7186589B2/en
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Description

ここで、何らかの原因でリレーバルブ9が故障する等して、スプリングチャンバ11への作動エアの供給ができなくなると、圧縮バネ13の弾撥力によりプッシュロッド12がスプリングチャンバ11内から突出したままの状態となって車輪14がロックされ続ける。かかる場合には、駐車ブレーキを解除するために、車両下へ潜り込み、スプリングブレーキのリリースボルトを操作しなければならなかった。 Here, if the relay valve 9 fails for some reason and the working air cannot be supplied to the spring chamber 11, the push rod 12 remains protruding from the inside of the spring chamber 11 due to the repulsive force of the compression spring 13. The wheel 14 continues to be locked. In such a case, in order to release the parking brake, it was necessary to dive under the vehicle and operate the release bolt of the spring brake.

この目的を達成するために本発明の車両は、駐車ブレーキ(PB)と、その駐車ブレーキを作動又は解除させるPBチャンバと、そのPBチャンバへ供給されるエアを貯留するエアタンクと、そのエアタンクから前記PBチャンバへ供給されるエアが通過するPBラインと、そのPBラインに設けられ駐車指令に基づいて前記PBチャンバへのエアの供給と停止とを切り換える切換装置とを備え、その切換装置を開にすることにより前記エアタンクから前記PBチャンバへエアを供給して前記駐車ブレーキを解除するものであり、前記切換装置と前記PBチャンバとの間の前記PBラインに設けられ、前記駐車指令が解除されたにも拘わらず前記切換装置が故障して前記PBチャンバへのエアの供給ができず前記駐車ブレーキが作動している場合に、前記PBチャンバへエアを供給して前記駐車ブレーキの作動を解除するPB解除装置とを備えている。 In order to achieve this object, the vehicle of the present invention comprises a parking brake (PB) , a PB chamber that activates or releases the parking brake, an air tank that stores air supplied to the PB chamber, and the air tank. A PB line through which air supplied to the PB chamber passes and a switching device provided in the PB line for switching between supply and stop of air to the PB chamber based on a parking command are provided, and the switching device is opened. By doing so, air is supplied from the air tank to the PB chamber to release the parking brake, which is provided on the PB line between the switching device and the PB chamber, and the parking command is released. Nevertheless, when the switching device fails to supply air to the PB chamber and the parking brake is operating, air is supplied to the PB chamber to release the operation of the parking brake. It is equipped with a PB release device.

また本発明の車両は、サービスブレーキ(SB)と、そのサービスブレーキを作動させるSBチャンバと、そのSBチャンバへ供給されるエアを貯留するエアタンクと、そのエアタンクから前記SBチャンバへ供給されるエアが通過するSBラインと、そのSBラインに設けられ前記SBチャンバへ供給されるエアを制御するリレーバルブと、制動指令に基づいて前記リレーバルブのパイロット圧を変化させて前記リレーバルブの開閉を制御する開閉装置とを備え、前記リレーバルブを開にすることにより前記エアタンクから前記SBチャンバへエアを供給して前記サービスブレーキを作動させるものであり、前記リレーバルブにパイロット圧を加えるために前記開閉装置によってエアが供給されるパイロットラインと、そのパイロットラインに設けられ、前記制動指令がないにも拘わらず前記開閉装置が故障して前記リレーバルブを開にするパイロット圧が加わった状態となって前記サービスブレーキが作動している場合に、前記パイロットラインのエアを解放して前記サービスブレーキの作動を解除するSB解除装置とを備えている。 Further, in the vehicle of the present invention, a service brake (SB) , an SB chamber that operates the service brake, an air tank that stores air supplied to the SB chamber, and air supplied from the air tank to the SB chamber are used. The SB line passing through, the relay valve provided on the SB line and controlling the air supplied to the SB chamber, and the pilot pressure of the relay valve are changed based on the braking command to control the opening and closing of the relay valve. The opening / closing device is provided, and by opening the relay valve, air is supplied from the air tank to the SB chamber to operate the service brake, and the opening / closing device is used to apply pilot pressure to the relay valve. A pilot line to which air is supplied by the engine and a pilot line provided on the pilot line, the opening / closing device fails and a pilot pressure for opening the relay valve is applied even though there is no braking command. When the service brake is operating, it is provided with an SB release device that releases the air in the pilot line to release the operation of the service brake.

以下、本発明の好ましい実施形態について、添付図面を参照して説明する。図1(a)は、搬送車1の正面図であり、図1(b)は、搬送車1の側面図である。搬送車1は、搬送物を載置して搬送する車両であり、車両フレーム2と、荷台3と、運転室4と、走行装置5と、駐車ブレーキ(PB)解除バルブ6と、サービスブレーキ(SB)解除バルブ7とを備える。荷台3は、パレットP及び搬送物Wを載置する部材であり、車両フレーム2上に配設される。運転室4は、作業員による荷台3の昇降指示や走行装置5に対する運転や制動の指示等を行う制御室であり、搬送車1の前端に配設される。 Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 1 (a) is a front view of the transport vehicle 1, and FIG. 1 (b) is a side view of the transport vehicle 1. Guided vehicle 1 is a vehicle for transporting and placing the conveyed object, the vehicle frame 2, a deck 3, a cab 4, a travel device 5, and the parking brake (PB) canceled valve 6, service brake (SB) and a cancel valve 7. The loading platform 3 is a member on which the pallet P and the conveyed object W are placed, and is arranged on the vehicle frame 2. The driver's cab 4 is a control room in which an operator gives an instruction to raise or lower the loading platform 3 and an instruction to operate or brake the traveling device 5, and is arranged at the front end of the transport vehicle 1.

PBチャンバ5b,SBチャンバ5cは、供給されるエアによって、車輪5aを制動させるブレーキシュー(図示せず)を制動側または非制動側に動作させるブレーキ装置である。詳細は後述するが、PBチャンバ5bによって、搬送車1の駐車ブレーキ及びサービスブレーキの作動または解除を行い、SBチャンバ5cによって、サービスブレーキの作動または解除を行う。 The PB chamber 5b and the SB chamber 5c are braking devices that operate a brake shoe (not shown) for braking the wheel 5a on the braking side or the non-braking side by the supplied air. Although details will be described later, by PB chamber 5b, performs loading or unloading of the parking brake及beauty service brake of the transport vehicle 1, the SB chamber 5c, performs loading or unloading of service brake.

JP2018221941A 2018-11-28 2018-11-28 vehicle Active JP7186589B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018221941A JP7186589B2 (en) 2018-11-28 2018-11-28 vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018221941A JP7186589B2 (en) 2018-11-28 2018-11-28 vehicle

Publications (3)

Publication Number Publication Date
JP2020083122A JP2020083122A (en) 2020-06-04
JP2020083122A5 true JP2020083122A5 (en) 2022-01-04
JP7186589B2 JP7186589B2 (en) 2022-12-09

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JP2018221941A Active JP7186589B2 (en) 2018-11-28 2018-11-28 vehicle

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113602244B (en) * 2021-08-31 2022-10-14 东风商用车有限公司 Parking brake release device, parking brake release method and vehicle
CN114516318B (en) * 2022-03-01 2023-03-14 中国重汽集团济南动力有限公司 Control system and method for parking release detection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142668U (en) * 1981-03-04 1982-09-07
JPH01162863U (en) * 1988-04-30 1989-11-13
JP2007320347A (en) 2006-05-30 2007-12-13 Hino Motors Ltd Vehicular wheel parking brake device
DE102006055570B4 (en) 2006-11-24 2010-05-06 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Parking brake device with a parking brake emergency release device

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