JPS5818254B2 - Overload prevention device for specially equipped vehicles, etc. - Google Patents
Overload prevention device for specially equipped vehicles, etc.Info
- Publication number
- JPS5818254B2 JPS5818254B2 JP3385476A JP3385476A JPS5818254B2 JP S5818254 B2 JPS5818254 B2 JP S5818254B2 JP 3385476 A JP3385476 A JP 3385476A JP 3385476 A JP3385476 A JP 3385476A JP S5818254 B2 JPS5818254 B2 JP S5818254B2
- Authority
- JP
- Japan
- Prior art keywords
- speed increasing
- vehicle
- hydraulic
- speed
- prime mover
- 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
- 230000002265 prevention Effects 0.000 title description 3
- 239000000428 dust Substances 0.000 claims 1
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Arrangement And Driving Of Transmission Devices (AREA)
- Refuse-Collection Vehicles (AREA)
Description
【発明の詳細な説明】
本発明は、塵芥収集車その他の架装体を搭載した特装車
等において、架装体の駆動系に過負荷の印加を防止する
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for preventing overload from being applied to a drive system of a body in a garbage collection vehicle or other specially equipped vehicle equipped with a body.
車輌に架装体を搭載した特装車等においては、従来、自
動アクセル機構を装備し、架装体の駆動時には車輌の原
動機を一定の増速状態に付勢するように設けられている
が、運転席のアクセルペダルを踏込むと、更に原動機の
出力は上昇して駆動される油圧ポンプからの供給油量が
多大となシ、架装体駆動に用いられる油圧系に衝撃的な
負荷が作用して、この油圧ポンプのほか配管、切替弁、
アクチュエータなどの油圧系機能部品が摩耗して所望の
機能を果し得なくなったシ、油圧系が破壊する事故の原
因となっている。Conventionally, special vehicles equipped with a bodywork have been equipped with an automatic accelerator mechanism that energizes the vehicle's prime mover to a constant speed increase when the bodywork is driven. When you step on the accelerator pedal at your seat, the output of the prime mover increases further, causing a large amount of oil to be supplied from the driven hydraulic pump, which places a shocking load on the hydraulic system used to drive the bodywork. In addition to this hydraulic pump, piping, switching valves,
Hydraulic system functional parts such as actuators wear out and are no longer able to perform their desired functions, causing accidents in which the hydraulic system breaks down.
本発明は斯かる点に鑑み、車輛に搭載した架装体を電気
−油圧系を用いて制御し、架装体を駆動する際には車輛
の増速機構と架装体の増速シリンダとを適宜リンク機構
で連結し、車輌原動機を一定の増速状態に付勢するよう
゛に構成すると共に、車輛の増速機構をさらに付勢して
も架装体の電気系を遮断するよう前記リンク機構に電気
接点を介在させて架装体の駆動を停止させる過負荷防止
装置を提供し、前記欠点を解決するものである。In view of this, the present invention controls the body mounted on a vehicle using an electro-hydraulic system, and when driving the body, the vehicle's speed increasing mechanism and the speed increasing cylinder of the body are connected by a link mechanism as appropriate to energize the vehicle prime mover to a constant speed increase state, and also to cut off the electrical system of the body even if the vehicle speed increase mechanism is further energized. The above-mentioned drawbacks are solved by providing an overload prevention device that stops the drive of a frame body by interposing an electric contact in a link mechanism.
本発明の構成を塵芥収集車の実施例につき、図面に基づ
いて以下に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the drawings regarding an embodiment of a garbage collection vehicle.
第１図に示すように、車輛１には架装体２が搭載され、
該架装体２はリフト油圧シリンダ３およびブツシュ油圧
シリンダ４の伸縮にて作動し、配設されたリミットスイ
ッチ５にて位置制御される。As shown in FIG. 1, a vehicle 1 is equipped with a body 2,
The frame body 2 is operated by the expansion and contraction of a lift hydraulic cylinder 3 and a bush hydraulic cylinder 4, and its position is controlled by a limit switch 5 provided therein.
架装体２の油圧制御系は、第２図に示すように、車輛１
の原動機６に接合操作レバー７によシ断続可能な接合機
構８を介して油圧ポンプ９が接続駆動すれ、該油圧ポン
プ９にそれぞれ電磁制御弁１０．１１を介して前記両油
圧シリンダ３，４が接続され、電磁制御弁１０．１１の
各ソレノイド１０ａ、１０ｂ、１１ａ、１１ｂの作動に
て該電磁制御弁１０．１１が切替操作されて両油圧シリ
ンダ３，４が伸縮作動される。The hydraulic control system of the body 2 is connected to the vehicle 1 as shown in FIG.
A hydraulic pump 9 is connected and driven to the prime mover 6 via a connecting mechanism 8 that can be switched on and off by a connecting operation lever 7, and the two hydraulic cylinders 3 and 4 are connected to the hydraulic pump 9 through electromagnetic control valves 10 and 11, respectively. is connected, and the electromagnetic control valve 10.11 is switched by actuation of each solenoid 10a, 10b, 11a, 11b of the electromagnetic control valve 10.11, and both hydraulic cylinders 3, 4 are operated to expand and contract.
又、前記油圧ポンプ９には増速電磁弁１２を介して増速
シリンダ１３が接続され、ソレノイド１２ａによる増速
電磁弁１２の作動にて該増速シリンダ１３が伸長する。Further, a speed increasing cylinder 13 is connected to the hydraulic pump 9 via a speed increasing solenoid valve 12, and the speed increasing cylinder 13 is expanded by actuation of the speed increasing solenoid valve 12 by a solenoid 12a.
増速シリンダ１３は、リンク機構１４を介して原動機６
の増速機構１５に接続され、その伸長時に原動機６を増
速するものである。The speed increasing cylinder 13 is connected to the prime mover 6 via a link mechanism 14.
It is connected to the speed increasing mechanism 15 of , and speeds up the prime mover 6 when it is extended.
尚、１６はリリーフ弁、１７はオイルリザーバである。Note that 16 is a relief valve and 17 is an oil reservoir.
前記接合操作レバー７は、アクセルペダル等の増速機構
１５と共に、運転室１８に設けられ、該接合操作レバー
７にはその操作を検知するリミットスイッチ１９が設け
られている（第１図参照）前記リンク機構１４の具体例
は第３図に示すように、増速シリンダ１３のロッド１３
ａは、下端部が支持台２０に枢支されて回動自在に設け
られた傾動体２１の中間適所にピン２２によシ連結され
、該傾動体２１の上部には係合ピン２３およびリミット
スイッチ２４が設けられ、アジャストボルト２５にてそ
の回動規制が行われる。The joining operation lever 7 is provided in the driver's cab 18 together with a speed increasing mechanism 15 such as an accelerator pedal, and the joining operation lever 7 is provided with a limit switch 19 that detects its operation (see FIG. 1). A specific example of the link mechanism 14 is as shown in FIG.
a is connected by a pin 22 to a suitable midpoint of a tilting body 21 whose lower end is rotatably supported by a support base 20, and an engagement pin 23 and a limit are provided at the upper part of the tilting body 21. A switch 24 is provided, and its rotation is restricted by an adjustment bolt 25.
また、両端部のヨーク２７．２８に長手方向の長孔２９
．３０を有するスライダ２６が設けられ。In addition, long holes 29 in the longitudinal direction are provided in the yokes 27 and 28 at both ends.
．． A slider 26 having a diameter of 30 is provided.
該スライダ２６の一方の長孔２９には前記傾動体２１に
植設された係合ピン２３が挿入され、ヨーク２７の端面
には圧縮ばね３１を介してリミットスイッチ２４の接触
子２４ａＩＪ″−尚接可能に設けられ、スライダ２６の
移動にてリミットスイッチ２４の電気接点が断続する。The engagement pin 23 implanted in the tilting body 21 is inserted into one elongated hole 29 of the slider 26, and the contact 24aIJ'' of the limit switch 24 is inserted into the end surface of the yoke 27 via a compression spring 31. The electric contact of the limit switch 24 is connected and disconnected by the movement of the slider 26.
スライダ２６の他端部ヨーク２８の長孔３０には、増速
機構１５にバー３２にて連結され、下端部にて回動自在
に枢支された増速レバー３３の先端ピン３４が挿入係合
されている。A tip pin 34 of a speed increasing lever 33, which is connected to the speed increasing mechanism 15 through a bar 32 and rotatably supported at its lower end, is inserted into the long hole 30 of the yoke 28 at the other end of the slider 26. are combined.
その増速レバー３３は増速機構１５の戻り力によシスラ
イダ２６を傾動体２１の方向に押圧している。The speed increasing lever 33 presses the sys slider 26 in the direction of the tilting body 21 by the return force of the speed increasing mechanism 15.
前記増速シリンダ１３の伸長は、傾動体２１、スライダ
２６、増速レバー３３を介して増速機構１５に伝達さオ
し、原動機６を増速する。The expansion of the speed increasing cylinder 13 is transmitted to the speed increasing mechanism 15 via the tilting body 21, the slider 26, and the speed increasing lever 33, thereby increasing the speed of the prime mover 6.
その増速シリンダ１３の伸長による増速は、アジャスト
ボルト２５で規制されるものであシ、増速シリンダ１３
の伸長による一定の増速状態以上に増速機構１５の操作
による増速レバー３３が回動した際には、該増速レバー
３３の先端ピン３４の移動に従ってスライダ２６も圧縮
ばね３１の働きにて移動し、リミットスイッチ２４の電
気接点は開放する。The speed increase due to the expansion of the speed increase cylinder 13 is regulated by the adjustment bolt 25.
When the speed increasing lever 33 is rotated by operating the speed increasing mechanism 15 beyond a certain speed increasing state due to the extension of The electric contact of the limit switch 24 is opened.
上記リミットスイッチ２４を有する電気制御系は、第４
図に示すように、電源回路３５と制御回路３６とを有し
、電源回路３５は、バッテリ３７スタータスイツチ３８
、ヒユーズ３９、リミットスイッチ１９、リレー４０等
が接続配線され、前記接合操作レバー７の操作を検知す
るリミットスイッチ１９の作動にて制御回路３６への電
圧供給が可能となる。The electric control system including the limit switch 24 includes a fourth
As shown in the figure, it has a power supply circuit 35 and a control circuit 36, and the power supply circuit 35 includes a battery 37, a starter switch 38, and a control circuit 36.
, a fuse 39, a limit switch 19, a relay 40, etc. are connected and wired, and voltage can be supplied to the control circuit 36 by operating the limit switch 19 that detects the operation of the joining operation lever 7.
制御回路３６は、前記リンク機構１４に設けられたリミ
ットスイッチ２４を介して電源回路３５に接続され、続
いて始動−停止スイッチ４１に接続されている。The control circuit 36 is connected to a power supply circuit 35 via a limit switch 24 provided on the link mechanism 14, and then to a start-stop switch 41.
該始動−停止スイッチ４１は、架装体２に設けたリミッ
トスイッチ５を包含するリレー回路４２を経て、前記油
圧系の電磁制御弁１０．１１の各ソレノイド１０ａ。The start-stop switch 41 is connected to each solenoid 10a of the electromagnetic control valve 10.11 of the hydraulic system via a relay circuit 42 including a limit switch 5 provided on the body 2.
１０ｂ、１１ａ、１１ｂに接続され、さらに、始動−停
止スイッチ４１には、その切替時に作動するよう前記増
速電磁弁１２のソレノイド１２ａが接続されている。10b, 11a, and 11b, and the solenoid 12a of the speed increasing electromagnetic valve 12 is connected to the start-stop switch 41 so as to be activated when the start-stop switch 41 is switched.
作用を説明すれば、架装体２を、駆動する際には、まず
、接合操作レバー７を操作して原動機６と油圧ポンプ９
を接合すると共に、リミットスイッチ１９にて電源回路
３５と制御回路３６を接続し、始動−停止スイッチ４１
の操作によｊ９１Ｊレ一回路４２の働きにて電磁制御弁
１０，１１の各ソレノイド１０ ａ ｓ １０ ｂ ＊
１１ ａ ｓ １ ｌ ｂを作動し、油圧シリンダ３
，４を伸縮制御する。To explain the operation, when driving the body 2, first operate the joint operation lever 7 to connect the prime mover 6 and the hydraulic pump 9.
At the same time, the limit switch 19 connects the power supply circuit 35 and the control circuit 36, and the start-stop switch 41
By operating the J91J relay circuit 42, each solenoid 10a s 10b* of the electromagnetic control valves 10 and 11 is activated.
11 a s 1 l b, hydraulic cylinder 3
, 4 is expanded/contracted.
一方、前記始動−停止スイッチ４１を操作すると増速シ
リンダ１３が伸長し、リンク機構１４を介して原動機６
る増速し、油圧シリンダ３，４への圧油の供給が増加す
る。On the other hand, when the start-stop switch 41 is operated, the speed-increasing cylinder 13 is extended, and the prime mover 6 is connected via the link mechanism 14.
The speed increases, and the supply of pressure oil to the hydraulic cylinders 3 and 4 increases.
架装体２の駆動時において、この一定の増速状態を越え
て増速機構１５を操作すると、その操作にて移動した増
速レバー３３に従動してスライダ２６が移動し、リミッ
トスイッチ２４の電気接点が開放し、制御回路３６を電
源回路３５と遮断し、電磁制御弁１０．１１および増速
電磁弁１２を停止状態に戻し、油圧シリンダ３，４の伸
縮作動を停止せしめて架装体２を停止すると共に、増速
シリレダ１３を元に戻すものである。When the speed increase mechanism 15 is operated beyond this constant speed increase state when the body 2 is driven, the slider 26 moves following the speed increase lever 33 moved by the operation, and the limit switch 24 is moved. The electrical contacts are opened, the control circuit 36 is cut off from the power supply circuit 35, the electromagnetic control valves 10 and 11 and the speed-increasing electromagnetic valve 12 are returned to the stopped state, the expansion and contraction of the hydraulic cylinders 3 and 4 is stopped, and the bodywork is closed. 2 and returns the speed increasing cylinder radar 13 to its original position.
従って、以上のような本発明過負荷防止装置によれば、
架装体の増速シリンダと原動機の増速機構をリンク機構
を介して接続し、一定の増速状態を越えてそれ以上に架
装体を駆動しようとしても架装体の電気系を遮断して作
動不能とし、一定の増速状態以内でのみ作動可能である
ために、油圧系に過大な負荷が作用するのを防止でき、
油圧ポンプのほか配管、切替弁等の油圧系機能部品が損
傷することがなく、保守管理が容易になるものである。Therefore, according to the overload prevention device of the present invention as described above,
The speed increasing cylinder of the body and the speed increasing mechanism of the prime mover are connected via a link mechanism, and even if an attempt is made to drive the body beyond a certain speed increase state, the electric system of the body will be cut off. Since it is disabled and can only operate within a certain speed increase state, it is possible to prevent excessive load from being applied to the hydraulic system.
In addition to the hydraulic pump, hydraulic system functional parts such as piping and switching valves will not be damaged, making maintenance management easier.
第１図は車輛の概略機構を示す一部断面側面図、第２図
は油圧制御系を示す油圧回路図、第３図はリンク機構の
具体例を示す要部正面図、第４図は電気制御系の概略を
示す電気回路図である。
１・・・・・・車輛、２−・・・・・架装体、３・・・
・・・リフト油圧シリンダ、４・・・・・・ブツシュ油
圧シリンダ、５・・・・・・リミットスイッチ（架）、
６・・・・・・原動機、７・・・・・・接合操作レバー
、８・・・・・・接合機構、９・・・・・・油圧ポンプ
、１０，１１・・・・・・電磁制御弁、１０ａ−ｂ。
１１ａ−ｂ・・・・・・ソレノイド、１２・・・・・・
増速電磁弁、１３・・・・・・増速シリンダ、１２ａ・
・・・・・ソレノイド、１４・・・・・・リンク機構、
１５・・・・・・増速機構、１６・・・・・・リリーフ
弁、１７・・・・・・オイルリザーバ、１８・・・・・
・運転室、１９・・・・・・リミットスイッチ（レバー
）、１３ａ・・・・・・ロッド、２０−・・・・・支持
台、２１・・・・・・傾動体、２２・・・・・・ピン、
２３・・・・・・係合ピン、２４・・・・・・リミット
スイッチ、２５・・・・・・アジャストボルト、２６・
・・・・・スライダ、２７．２８・・・・・・ヨーク、
２９゜３０・・・・・・長孔、３１・・・・・・圧縮ば
ね、２４ａ・・・・・・接触子、３２・・・・・・バー
、３３・・・・・・増速レバー、３４・・・・・・先端
ピン、３５・・・・・・電源回路、３６・・・・・・制
御回路、３７・・・・・・バッテリ、３８・・・・・・
スタータスイッチ、３９・・・・・・ヒユーズ、４０・
・・・・・リレー、４１・・・・・・始動−停止スイッ
チ、４２・・・・・・リレー回路。Figure 1 is a partial cross-sectional side view showing the general mechanism of the vehicle, Figure 2 is a hydraulic circuit diagram showing the hydraulic control system, Figure 3 is a front view of main parts showing a specific example of the link mechanism, and Figure 4 is the electrical FIG. 2 is an electrical circuit diagram schematically showing a control system. 1... Vehicle, 2-... Bodywork, 3...
... Lift hydraulic cylinder, 4 ... Bush hydraulic cylinder, 5 ... Limit switch (mount),
6... Prime mover, 7... Joining operation lever, 8... Joining mechanism, 9... Hydraulic pump, 10, 11... Electromagnetic Control valves, 10a-b. 11a-b...Solenoid, 12...
Speed-up solenoid valve, 13...Speed-up cylinder, 12a.
... Solenoid, 14 ... Link mechanism,
15... Speed increase mechanism, 16... Relief valve, 17... Oil reservoir, 18...
- Driver's cab, 19... limit switch (lever), 13a... rod, 20-... support stand, 21... tilting body, 22... ···pin,
23... Engagement pin, 24... Limit switch, 25... Adjustment bolt, 26...
...Slider, 27.28...Yoke,
29゜30...Long hole, 31...Compression spring, 24a...Contact, 32...Bar, 33...Speed up Lever, 34... Tip pin, 35... Power supply circuit, 36... Control circuit, 37... Battery, 38...
Starter switch, 39...Fuse, 40.
... Relay, 41 ... Start-stop switch, 42 ... Relay circuit.
Claims (1)
圧駆動力によシ車輛に搭載される架装体を電気−油圧系
を用いて制御すると共に、架装体を駆動する際には車輛
原動機を一定の増速状態に付勢するように車輛の増速機
構と架装体の増速シリンダとを適宜リンク機構で連結し
、架装体の駆動時に、前記一定の増速状塵を越えて車輛
の増速機構を付勢しても架装体の電気系を遮断するよう
前記リンク機構に電気接点を介在させて架装体の駆動を
停止させることを特徴とする特装車等の過負荷防止装置
。1 The vehicle prime mover is used to convert into hydraulic driving force, and this hydraulic driving force is used to control the bodywork mounted on the vehicle using an electro-hydraulic system, and when driving the bodywork, The speed increasing mechanism of the vehicle and the speed increasing cylinder of the body are connected by an appropriate link mechanism so as to bias the vehicle prime mover to a constant speed increasing state, and when the body is driven, the speed increasing state of the dust A special purpose vehicle, etc., characterized in that an electrical contact is interposed in the link mechanism so as to cut off the electrical system of the body even if the speed increasing mechanism of the vehicle is energized beyond the above range, thereby stopping the drive of the body. Overload protection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3385476A JPS5818254B2 (en) | 1976-03-26 | 1976-03-26 | Overload prevention device for specially equipped vehicles, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3385476A JPS5818254B2 (en) | 1976-03-26 | 1976-03-26 | Overload prevention device for specially equipped vehicles, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52116523A JPS52116523A (en) | 1977-09-30 |
| JPS5818254B2 true JPS5818254B2 (en) | 1983-04-12 |
Family
ID=12398083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3385476A Expired JPS5818254B2 (en) | 1976-03-26 | 1976-03-26 | Overload prevention device for specially equipped vehicles, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5818254B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588431A (en) * | 1981-07-07 | 1983-01-18 | Shin Meiwa Ind Co Ltd | Safety device of driving controller of driven means mounted on vehicle |
| JPS588432A (en) * | 1981-07-07 | 1983-01-18 | Shin Meiwa Ind Co Ltd | Safety device for drive control device of driven body mounted on vehicle |
-
1976
- 1976-03-26 JP JP3385476A patent/JPS5818254B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52116523A (en) | 1977-09-30 |
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