JPS62146738A - Seat supporting structure of working vehicle - Google Patents

Seat supporting structure of working vehicle

Info

Publication number
JPS62146738A
JPS62146738A JP60286800A JP28680085A JPS62146738A JP S62146738 A JPS62146738 A JP S62146738A JP 60286800 A JP60286800 A JP 60286800A JP 28680085 A JP28680085 A JP 28680085A JP S62146738 A JPS62146738 A JP S62146738A
Authority
JP
Japan
Prior art keywords
seat
vehicle body
damper
vibration
detecting
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.)
Pending
Application number
JP60286800A
Other languages
Japanese (ja)
Inventor
Tetsuya Nishida
哲也 西田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP60286800A priority Critical patent/JPS62146738A/en
Publication of JPS62146738A publication Critical patent/JPS62146738A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/502—Seat suspension devices attached to the base of the seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/501—Seat suspension devices actively controlled suspension, e.g. electronic control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/506—Seat guided by rods
    • B60N2/507—Parallelogram-like structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/52—Seat suspension devices using fluid means
    • B60N2/522—Seat suspension devices using fluid means characterised by dampening means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/50—Seat suspension devices
    • B60N2/54—Seat suspension devices using mechanical springs
    • B60N2/544—Compression or tension springs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
    • G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
    • G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
    • G01G19/4142—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only for controlling activation of safety devices, e.g. airbag systems

Abstract

PURPOSE:To invariably suppress the up-and-down movement of a seat adequately by detecting the sinking of the seat and vibration of a vehicle body respectively and controlling a damper throttle means provided on the seat in the closing direction as these detected values are increased respectively. CONSTITUTION:A seat 6 is connected to a vehicle body 3 via a link mechanism consisting of a pair of front and rear swaying arms 9, 10, and a spring 7 and a damper 8 are inserted between supporting axes 9a, 9b on the diagonal line of the arms 9, 10. In this constitution, a weight sensor 11 detecting the body weight of a seated person is provided on the supporting axis 9b, and a vibration sensor 12 detecting the vibration frequency of the vehicle body 3 is provided on the vehicle body 3. In addition, a throttle valve 13 suppressing the flow of a fluid is provided on the damper 8. As detected values from the sensors 11, 13 are increased respectively, the throttle valve 13 is operated in the closing direction by a control device 17 via a servo motor 14 to increase the buffer function of the damper 8.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はバネを介して座席を車体に支持させてある作業
車の座席支持構造に関し１、詳しくは、座席の大きな上
下動を抑制する技術に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a seat support structure for a work vehicle in which a seat is supported on a vehicle body via a spring.1, Specifically, it relates to a technology for suppressing large vertical movements of a seat. Regarding.

〔従来の技術〕[Conventional technology]

一般に、冒記のように、作業車の座席がバネを介して支
持された構造のものでは、車体からの大きな振動が座席
に伝わった場合に、振動が止まった後まで座席が上下動
し続けることがある。Generally, as mentioned above, if the seat of a work vehicle is supported by a spring, if large vibrations from the vehicle body are transmitted to the seat, the seat will continue to move up and down until after the vibration has stopped. Sometimes.

そこで、従来はこのような上下動を抑制するため例えば
実開昭５７−２５０４４号公報に示されるように、座席
の上下動を抑制するダンパをバネに対して並設したもの
がある。Conventionally, in order to suppress such vertical movement, a damper for suppressing the vertical movement of the seat is arranged in parallel with the spring, as shown in Japanese Utility Model Application Publication No. 57-25044, for example.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかし、前述のように振動が止まった後に生じる座席の
上下動け、振動の大きさ及び座席に着座する人の体重に
比例して、振幅が大きく、かつ、持続時間が長くなるた
め、前記引例のようにダンパを設けた構造のものであっ
ても、振動が大きい場合、あるいは、着座する人の体重
が大きい場合には振動が止まった後まで座席が上下動し
続けることもあり改善の余地がある。However, as mentioned above, the vertical movement of the seat that occurs after the vibration stops, the amplitude is large and the duration becomes long in proportion to the size of the vibration and the weight of the person sitting on the seat. Even with a structure equipped with a damper, if the vibration is large or the weight of the person sitting is large, the seat may continue to move up and down until the vibration stops, so there is room for improvement. be.

本発明の目的は合理的な改造によって、座席の上下動を
体重、振動の大きさの条件によって適切に抑制できる構
造を得る１１）る。An object of the present invention is to obtain, through rational modification, a structure in which vertical movement of the seat can be appropriately suppressed depending on conditions such as body weight and vibration magnitude11).

〔問題点を解決するための手段〕[Means for solving problems]

本発明の特徴は、冒記構成の座席支持構造において、前
記バネの付勢力に抗しての座席沈込みを検出する重量セ
ンサを設け、座席の上下動を抑制する流体式のダンパを
設け、単位時間あたりの所定振幅以上の車体の振！ｌＪ
数を検出する振動センサを設け、前記重量センサからの
検出値が大きいほど、又、振動センサからの検出値が増
大するほど、前記ダンパの緩衝機能を増大させるよう、
ダンパに備えた絞９手段を閉塞方向く自１１Ｊ操作する
調節機構を設けである点にあり、その作用及び効果は次
の通りである。The present invention is characterized in that, in the seat support structure having the above configuration, a weight sensor is provided to detect the sinking of the seat against the biasing force of the spring, and a fluid damper is provided to suppress vertical movement of the seat. Shake of the vehicle body exceeds a predetermined amplitude per unit time! lJ
A vibration sensor is provided to detect the number of vibrations, and the larger the detected value from the weight sensor is, or the larger the detected value from the vibration sensor is, the more the buffering function of the damper is increased.
An adjustment mechanism is provided to operate the throttle means 9 provided in the damper in the closing direction 11J, and its functions and effects are as follows.

〔作　用〕 上記特徴を例えば４！Ｉ１図に示すように＃成すると、
ｆ？幼センサ（６）からの検出値が増大した場合には、
増大するほど調節機構旧）が、ダンパ（８）の絞り手段
としての絞り弁（至）を１．ζり閉塞する方向に操作し
、同時に１重量センサ（ロ）からの検出値が大きいほど
、調節機構ｔＢｌの閉塞方向への操作量が大きくなる。[Function] For example, the above characteristics are 4! As shown in Figure I1, # is completed,
f? When the detection value from the young sensor (6) increases,
The older the adjustment mechanism becomes, the more the throttle valve (to) as a throttle means for the damper (8) becomes 1. The larger the detected value from the first weight sensor (b) is at the same time when the adjustment mechanism is operated in the direction of closing, the larger the amount of operation of the adjustment mechanism tBl in the closing direction becomes.

〔発明の効果〕〔Effect of the invention〕

従って、体重、振動の大きさの条件がどのように変化し
ても座席の上下動を適切に抑制できる構造が得られた。Therefore, a structure has been obtained that can appropriately suppress vertical movement of the seat no matter how the conditions such as body weight and vibration magnitude change.

〔実施例〕〔Example〕

以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.

第２図に示すように、前後の駆動車輪（１１、＜２１で
走行する車体（３）の中央部に搭乗運転部囚を形成する
と共に、車体（３）の後端に油圧によって上下細切する
左右一対の作業装ｇ１（図示せず）連結用のす７トアー
ム（４）を設けて、作業車の一例として農用トラクタを
構成する。As shown in Fig. 2, a boarding and driving section is formed in the center of the vehicle body (3) that runs with the front and rear drive wheels (11, A tow arm (4) for connecting a pair of left and right work equipment g1 (not shown) is provided to configure an agricultural tractor as an example of a work vehicle.

同図に示すように１前記搭乗運転部（２）には前車輪（
１）を操向操作するステアリングハンドル（ト）、及び
左右のリア７エンダー（６）の間に位置させて座席（６
）が設けられ、該座席ｉｌｌはバネ（７）を介して車体
（３）に支持させてある。As shown in the figure, the front wheel (
1) is located between the steering handle (G) for steering operation and the left and right rear 7-enders (6).
), and the seat ill is supported by the vehicle body (3) via a spring (7).

又、当該農用トラクタは車体（３）から伝えられる振動
が適度に抑制されるよう緩衝機能を自動調節する流体式
のダンパ（８）を、前記座席（６）と車体（３）との間
に設けである。Furthermore, the agricultural tractor has a fluid damper (8) between the seat (6) and the vehicle body (3) that automatically adjusts the buffering function so that vibrations transmitted from the vehicle body (3) are appropriately suppressed. It is a provision.

即ち、第１図に示すように前記座席（６）は、前後２り
の揺動アーム（９１、（ｔｏ）で戎るリンク機構を介し
て車体（３）に連結されると共に、前部揺動アーム（９
）の座席側支軸（９ａ）と、後部揺動アーム（１０）の
車体側支軸（９ｂ）とに亘って前記バネ（７）、及びダ
ンパ（８）が投けられている。That is, as shown in FIG. 1, the seat (6) is connected to the vehicle body (3) via a link mechanism formed by two front and rear swing arms (91, (to)), and also has a front swing arm. Moving arm (9
) and the vehicle body side support shaft (9b) of the rear swing arm (10).

又、前部揺動アーム（９）のオ１体側支軸（９ｂ）に該
支軸（９ｂ）の回動量から着座する人の体重を検出する
、回動構造の重量セン４トＱηを設け、車体（３）には
、単位時間あたりの所定振幅以上の車体（３）の振動数
を検出する振動センサ（６）を設け、更に、ダンパ（８
）Ｋは封入された流木の流動を抑制することで、緩衝機
能を調節するための絞り弁（至）を設けてあり、該絞り
弁α３ＫＩ／ｉ弁の開度を電気的に調節するためのサー
ボモータａ→を設けである。In addition, a rotating structure weight center Qη is provided on the body side support shaft (9b) of the front swing arm (9) to detect the weight of a seated person from the amount of rotation of the support shaft (9b). , the vehicle body (3) is provided with a vibration sensor (6) that detects a vibration frequency of the vehicle body (3) that is equal to or higher than a predetermined amplitude per unit time, and is further provided with a damper (8).
) K is provided with a throttle valve (to) for adjusting the buffer function by suppressing the flow of enclosed driftwood, and a throttle valve (to) for electrically adjusting the opening degree of the throttle valve α3KI/i valve. A servo motor a→ is provided.

又、前記電歇センサ（ロ）及び振動センサ（６）からの
信号夫々がＡ　／　Ｄ変換器（至）、（至）を介して入
力されるよう入力系を構成した制御装置α力が設けられ
、該制御装置αηからの出力信号で前記サーボモータα
→を作動させるよう出力信号系が構成されている。Further, a control device α is provided, which constitutes an input system so that the signals from the electric switch sensor (b) and the vibration sensor (6) are respectively inputted via the A/D converters (to) and (to). and the servo motor α is controlled by the output signal from the control device αη.
The output signal system is configured to operate →.

尚、制御装置αη及びサーボモータα冶を調節機構（Ｂ
ｌと称する。In addition, the control device αη and the servo motor α are controlled by an adjustment mechanism (B
It is called l.

そして、体重のより重い人が着座し、かつ、車体（３）
の［１１１が、より増大するほど絞り弁（至）が閉塞方
向に操作されると共に１車体（３）の振動が減少すれば
絞り弁（至）を開放方向に復元操作して、座席（６）の
上下動が適切に抑制されるようになっている。If a heavier person is seated and the vehicle body (3)
As [111 of ) vertical movement is appropriately suppressed.

〔別実施例〕[Another example]

本発明は上記実施例以外に、例えば農用運搬車に適用し
て実施して良く、又、絞り手段の操作を予め求めておい
たデータに従って調節するよう制御装置をマイクロプロ
セッサで構成しても良い。In addition to the embodiments described above, the present invention may be applied to, for example, an agricultural transport vehicle, and the control device may be configured with a microprocessor so as to adjust the operation of the squeezing means in accordance with predetermined data. .

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明に係る作業車の座席支持構造の実施例を示
し、第１図は当該支持構造の制御系を示すブロック回路
図、第２図は農用トラクタの全体側面図である。 （３）・・・・・・車体、（６）・・・・・・座席、（
７）・・・・・・バネ、（８）・・・・・・タンパ、（
ロ）・・・・・・重量センサ、（６）・・・・・・振動
センサ、（至）・・・・・・絞り手段、（Ｂ）・・・・
・・調節機構。The drawings show an embodiment of a seat support structure for a working vehicle according to the present invention, FIG. 1 is a block circuit diagram showing a control system of the support structure, and FIG. 2 is an overall side view of an agricultural tractor. (3)...Car body, (6)...Seat, (
7)・・・Spring, (8)・・・Tamper, (
B)... Weight sensor, (6)... Vibration sensor, (To)... Squeezing means, (B)...
...Adjustment mechanism.

Claims (1)

【特許請求の範囲】[Claims] バネ（７）を介して座席（６）を車体（３）に支持させ
てある作業車の座席支持構造であつて、前記バネ（７）
の付勢力に抗しての座席（６）沈込みを検出する重量セ
ンサ（１１）を設け、座席（６）の上下動を抑制する流
体式のダンパ（８）を設け、単位時間あたりの所定振幅
以上の車体（３）の振動数を検出する振動センサ（１２
）を設け、前記重量センサ（１１）からの検出値が大き
いほど、又、振動センサ（１２）からの検出値が増大す
るほど、前記ダンパ（８）の緩衝機能を増大させるよう
、ダンパ（８）に備えた絞り手段（１３）を閉塞方向に
自動操作する調節機構（Ｂ）を設けてある作業車の座席
支持構造。A seat support structure for a work vehicle in which a seat (6) is supported by a vehicle body (3) via a spring (7), wherein the spring (7)
A weight sensor (11) is provided to detect the sinking of the seat (6) against the urging force of A vibration sensor (12) detects a frequency of vibration of the vehicle body (3) exceeding the amplitude
), and the damper (8) is configured to increase the buffering function of the damper (8) as the detected value from the weight sensor (11) increases or as the detected value from the vibration sensor (12) increases. ) A seat support structure for a working vehicle, which is provided with an adjustment mechanism (B) that automatically operates the throttle means (13) provided in the closing direction.
JP60286800A 1985-12-19 1985-12-19 Seat supporting structure of working vehicle Pending JPS62146738A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60286800A JPS62146738A (en) 1985-12-19 1985-12-19 Seat supporting structure of working vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60286800A JPS62146738A (en) 1985-12-19 1985-12-19 Seat supporting structure of working vehicle

Publications (1)

Publication Number Publication Date
JPS62146738A true JPS62146738A (en) 1987-06-30

Family

ID=17709207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60286800A Pending JPS62146738A (en) 1985-12-19 1985-12-19 Seat supporting structure of working vehicle

Country Status (1)

Country Link
JP (1) JPS62146738A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6444353A (en) * 1987-08-13 1989-02-16 Nissan Motor Suspension seat
GB2442438A (en) * 2006-10-06 2008-04-09 Dominic James Robinson Adjustable seat with load cell and counterbalance
FR3058943A1 (en) * 2016-11-21 2018-05-25 Peugeot Citroen Automobiles Sa SUSPENSION OF A VEHICLE SEAT AND ADJUSTMENT OF THE POSITION OF THE SEAT

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6444353A (en) * 1987-08-13 1989-02-16 Nissan Motor Suspension seat
GB2442438A (en) * 2006-10-06 2008-04-09 Dominic James Robinson Adjustable seat with load cell and counterbalance
FR3058943A1 (en) * 2016-11-21 2018-05-25 Peugeot Citroen Automobiles Sa SUSPENSION OF A VEHICLE SEAT AND ADJUSTMENT OF THE POSITION OF THE SEAT

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