JPH09123789A - Operating pedal device - Google Patents
Operating pedal deviceInfo
- Publication number
- JPH09123789A JPH09123789A JP30684695A JP30684695A JPH09123789A JP H09123789 A JPH09123789 A JP H09123789A JP 30684695 A JP30684695 A JP 30684695A JP 30684695 A JP30684695 A JP 30684695A JP H09123789 A JPH09123789 A JP H09123789A
- Authority
- JP
- Japan
- Prior art keywords
- pedal
- cam
- frame
- support part
- pedal frame
- 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.)
- Withdrawn
Links
Landscapes
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Mechanical Control Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、油圧ショベル等の
建設機械等に設けられる操作ペダル装置の技術分野に属
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of operating pedal devices provided in construction machines such as hydraulic excavators.
【０００２】[0002]
【従来の技術】一般に、この種操作ペダル装置のなかに
は、例えば油圧ショベルに設けられる走行用ペダル装置
の如く、オペレータが足を載せて踏込み操作する踏板４
の下面にペダルフレーム５を一体的に取り付け、該ペダ
ルフレーム５の下面にボルト１１を介して止着したペダ
ルカム１２を前後揺動自在に軸支８してペダル本体２を
構成すると共に、該ペダル本体２を、前記踏板４の踏込
み操作に伴うペダルカム１２の前後揺動で可動機構（例
えばプッシュロッド）９が押圧されることで作動する制
御バルブ３に組み付けたバルブ作動式のペダル装置が知
られている。2. Description of the Related Art Generally, in this kind of operation pedal device, a tread plate 4 on which an operator puts his / her foot and operates by depressing, such as a traveling pedal device provided in a hydraulic excavator.
The pedal frame 5 is integrally attached to the lower surface of the pedal frame 5, and the pedal cam 8 fixed to the lower surface of the pedal frame 5 via bolts 11 is pivotally supported 8 so that the pedal main body 2 is constituted. There is known a valve-operated pedal device in which the main body 2 is assembled to a control valve 3 which is operated by pressing a movable mechanism (for example, a push rod) 9 by swinging the pedal cam 12 back and forth accompanying the stepping operation of the step board 4. ing.
【０００３】[0003]
【発明が解決しようとする課題】ところで、前記制御バ
ルブの可動機構を同量だけ移動させるのに必要な踏板の
踏込み量は、踏板の前後踏込み位置から前記ペダルカム
の揺動支軸までの距離が大きいほど大きくなる。ところ
が、この踏板の踏込み量が大きいと、オペレータはその
分だけ足首の揺動および足全体の上下移動を大きくしな
ければならず、操作性が劣る。そこで、踏板の前後踏込
み位置からペダルカムの揺動支軸までの距離を短くすべ
く揺動支軸をペダルフレーム下面にできるだけ近接させ
ることが試みられるが、前記従来のペダル装置では、ペ
ダルカム１２をペダルフレーム５にボルト１１で止着す
る構成となっているため、ボルトの取付け代（螺合代）
をペダルカム部位で確保する必要があって、揺動支軸を
ペダルフレーム側に近接させるのにどうしても限界があ
るという問題があり、ここに本発明が解決しようとする
課題があった。さらには、ペダルカムをペダルフレーム
にボルトで取付ける作業も面倒であるうえ、ボルトの取
付け代分だけペダルカムを肉厚にしなければならずペダ
ル本体が重くなり、慣性も大きくなることから、操作性
に劣るという解決すべき課題もあった。By the way, the stepping amount of the tread plate required to move the movable mechanism of the control valve by the same amount is the distance from the front and rear stepping position of the tread plate to the swing support shaft of the pedal cam. The bigger it is, the bigger it becomes. However, if the amount of stepping on the tread is large, the operator has to increase the swing of the ankle and the vertical movement of the entire foot accordingly, resulting in poor operability. Therefore, in order to shorten the distance from the front / rear stepping position of the tread plate to the swing support shaft of the pedal cam, it is attempted to bring the swing support shaft as close as possible to the lower surface of the pedal frame. Since it is configured to be fixed to the frame 5 with the bolts 11, the bolt mounting allowance (screw allowance)
Therefore, there is a problem that there is a limit to bringing the swing support shaft close to the pedal frame side, and there is a problem to be solved by the present invention. Furthermore, the work of mounting the pedal cam to the pedal frame with bolts is troublesome, and the pedal cam must be made thicker by the amount of the bolt mounting margin, which makes the pedal body heavy and the inertia is large, resulting in poor operability. There was also a problem to be solved.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記の如き実
情に鑑み、これらの課題を解決することを目的として創
作されたものであって、踏板の下面にペダルフレームが
取り付けられ、該ペダルフレームの下面に設けたペダル
カムが揺動自在に軸支されたペダル本体と、踏板の踏込
みに伴うペダルカムの揺動で押圧されて作動する制御バ
ルブとを用いて構成される操作ペダル装置において、前
記ペダルカムをペダルフレームと一体形成したものであ
る。この様にすることにより、ペダルカムにボルトの取
付け代を確保する必要がなくなって、ペダルカムの揺動
軸支部を可及的にペダルフレーム下面に近接させること
ができ、この結果、踏板の前後踏込み位置から揺動軸支
部までの距離を短く設定できることになって、オペレー
タの足全体の移動量が小さくなり、操作性が向上する。
さらに、ペダルカムの押圧面を、踏板の非踏込み状態で
制御バルブのスプール移動方向に対して略直交する水平
面に形成することにより、踏込み操作力の分力ロスを殆
ど無くし得て操作力を軽減できる。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances in order to solve these problems, and a pedal frame is attached to the lower surface of a tread, and the pedal frame is attached to the pedal frame. In an operation pedal device configured by using a pedal body provided on a lower surface of a frame, which is pivotally supported, and a control valve that is pressed by the swing of the pedal cam accompanying the stepping of a treadle to operate. The pedal cam is integrally formed with the pedal frame. By doing so, it is not necessary to secure a mounting allowance for the bolt on the pedal cam, and the swing shaft support portion of the pedal cam can be brought as close as possible to the lower surface of the pedal frame. Since it is possible to set the distance from to the swing shaft support to be short, the movement amount of the operator's entire foot is reduced, and operability is improved.
Furthermore, by forming the pressing surface of the pedal cam on a horizontal plane that is substantially orthogonal to the spool movement direction of the control valve when the tread plate is not stepped on, the component force loss of the stepping operation force can be almost eliminated and the operation force can be reduced. .
【０００５】[0005]
【発明の実施の形態】次に、本発明の第一の実施の形態
を図面に基づいて説明する。図面において、１は油圧シ
ョベルのキャブ内に配設される走行用ペダル装置であっ
て、該ペダル装置１は、後述するペダル本体２と、該ペ
ダル本体２の前後踏込み操作に基づいて作動するパイロ
ット弁３とを用いて構成されている。BEST MODE FOR CARRYING OUT THE INVENTION Next, a first embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes a traveling pedal device arranged in a cab of a hydraulic excavator, and the pedal device 1 includes a pedal body 2 which will be described later, and a pilot which operates based on forward and backward depression operation of the pedal body 2. And the valve 3.
【０００６】前記ペダル本体２は、オペレータが足を載
せて踏込み操作するための踏板４、該踏板４の下面に固
着されるペダルフレーム５、および該ペダルフレーム５
の下面に設けられるペダルカム６等の部材から構成され
ている。該ペダルカム６は、押圧面部６ａと、該押圧面
部６ａの前後方向中央部から下側に突出形成される軸支
部６ｂとを有しているが、このペダルカム６は前記ペダ
ルフレーム５に一体形成されている。The pedal body 2 has a step board 4 on which an operator puts his / her foot to operate, a pedal frame 5 fixed to the lower surface of the step board 4, and the pedal frame 5.
It is composed of a member such as a pedal cam 6 provided on the lower surface of the. The pedal cam 6 has a pressing surface portion 6a and a shaft support portion 6b which is formed so as to project downward from the central portion of the pressing surface portion 6a in the front-rear direction. The pedal cam 6 is formed integrally with the pedal frame 5. ing.
【０００７】一方、前記パイロット弁３は、バルブケー
シング３ａの上側に組付けられる上側ブラケット３ｂを
ボルト固定することでキャブフロア７に取り付けられる
が、該上側ブラケット３ｂの上面部には、前記ペダルカ
ム６の軸支部６ｂが支軸８を介して前後揺動自在に軸支
されており、これによってペダル本体２は、前記踏板４
の前後踏込み操作に伴って前後揺動する構成となってい
る。On the other hand, the pilot valve 3 is mounted on the cab floor 7 by bolting an upper bracket 3b assembled on the upper side of the valve casing 3a. The pedal cam 6 is mounted on the upper surface of the upper bracket 3b. A shaft supporting portion 6b of the pedal is supported by a supporting shaft 8 so as to be swingable back and forth.
It is configured to swing back and forth in accordance with the front and rear stepping operation.
【０００８】また、前記ペダルカム６の軸支部６ｂを挟
んだ前後両側の押圧面部６ａは、パイロット弁３のバル
ブケーシング３ａおよび上側ブラケット３ｂに上下移動
自在に組付けられる前後のプッシュロッド９の上端部に
それぞれ接当している。そして、前記踏板４の前後踏込
み操作に伴うペダルカム６の前後揺動により、前側また
は後側の押圧面部６ａが対応するプッシュロッド９を押
圧することでプッシュロッド９が下動し、これに連繋す
るスプール１０の上下移動で弁路が開閉して走行用コン
トロールバルブ（図示せず）へのパイロット圧油の供給
制御がなされる構成となっている。The front and rear pressing surfaces 6a sandwiching the shaft support 6b of the pedal cam 6 are mounted on the valve casing 3a of the pilot valve 3 and the upper bracket 3b so as to be vertically movable. I am in contact with each of them. Then, as the pedal cam 6 is rocked back and forth in response to the operation of stepping the footboard 4 back and forth, the front or rear pressing surface portion 6a presses the corresponding push rod 9, and the push rod 9 moves downward and is connected thereto. The valve path is opened and closed by the vertical movement of the spool 10, and the supply of pilot pressure oil to a traveling control valve (not shown) is controlled.
【０００９】叙述の如く構成されたものにおいて、ペダ
ル本体２は、ペダルカム６の軸支部６ｂを支点として前
後揺動することになるが、該ペダルカム６はペダルフレ
ーム５に一体形成されているため、従来のボルトを用い
てペダルフレームに止着されるペダルカムのようにボル
トの取付け代を確保する必要がなく、軸支部６ｂが可及
的にペダルフレーム５の下面に近接したものとすること
ができる。この結果、踏板４の前後踏込み位置から軸支
部６ｂまでの距離を従来よりも短く設定できることにな
って、オペレータはその分だけ足首の揺動および足全体
の上下移動が小さくても済み、操作性が向上する。しか
も、ボルト、ワッシャ等の止着部材が不要なうえ、ペダ
ルカム６をボルト緊締するための緊締作業もしないでよ
いこととなって、コストダウンに寄与できる許りか、ボ
ルト取付け代が不要になった分だけペダルカム６を肉薄
にできることになって軽量化され、この結果、ペダル本
体２自体の重量が軽くなって慣性が小さくなることから
踏込み操作力が軽減されるという利点もある。In the structure constructed as described above, the pedal body 2 swings back and forth about the pivotal support portion 6b of the pedal cam 6, but since the pedal cam 6 is formed integrally with the pedal frame 5. Unlike the pedal cam fixed to the pedal frame by using the conventional bolt, it is not necessary to secure the mounting allowance of the bolt, and the shaft supporting portion 6b can be as close to the lower surface of the pedal frame 5 as possible. . As a result, the distance from the front-and-rear stepping position of the tread 4 to the shaft supporting portion 6b can be set shorter than before, so that the operator need only swing the ankle and vertically move the entire foot by a small amount, and the operability is improved. Is improved. In addition, fastening members such as bolts and washers are not necessary, and the tightening work for tightening the pedal cam 6 by bolts is not required, so that it is possible to contribute to cost reduction, and the bolt mounting allowance is not necessary. Since the pedal cam 6 can be made thinner by the amount, the weight of the pedal cam 6 can be reduced. As a result, the weight of the pedal body 2 itself is reduced and the inertia is reduced, so that the pedaling operation force can be reduced.
【００１０】さらに、前記第一の実施形態では、ペダル
カム６は、パイロット弁３のプッシュロッド９を押圧す
る押圧面部６ａが、踏板４の非踏込み状態で略水平面状
に形成されているため、押圧面部６ａがプッシュロッド
９を押圧する力の方向とプッシュロッド９およびスプー
ル１０の移動方向とが略一致することになって、操作力
の分力ロスを殆ど無くし得て踏込み操作をより一層軽く
できることになるが、このものに限定されることなく、
図２（Ｂ）に示す第二の実施形態の如く、押圧面を傾斜
面状に形成したものであっても良い。Further, in the first embodiment, the pedal cam 6 has a pressing surface portion 6a for pressing the push rod 9 of the pilot valve 3, which is formed in a substantially horizontal plane when the tread plate 4 is not stepped on. Since the direction of the force with which the surface portion 6a presses the push rod 9 and the moving direction of the push rod 9 and the spool 10 substantially coincide with each other, it is possible to almost eliminate the component loss of the operating force and further reduce the stepping operation. However, without being limited to this,
As in the second embodiment shown in FIG. 2B, the pressing surface may be formed in an inclined surface shape.
【図１】ペダル装置の一部断面側面図である。FIG. 1 is a partial cross-sectional side view of a pedal device.
【図２】（Ａ）は第一の実施形態におけるペダルカム部
の拡大図、（Ｂ）は第二の実施形態におけるペダルカム
部の拡大図である。2A is an enlarged view of a pedal cam portion in the first embodiment, and FIG. 2B is an enlarged view of a pedal cam portion in the second embodiment.
【図３】従来例を示すペダル装置の一部断面側面図であ
る。FIG. 3 is a partial sectional side view of a conventional pedal device.
【図４】（Ａ）は本発明の実施形態における踏板の移動
量を示す説明図、（Ｂ）は従来例における踏板の移動量
を示す説明図である。FIG. 4A is an explanatory diagram showing a movement amount of a tread plate in the embodiment of the present invention, and FIG. 4B is an explanatory diagram showing a movement amount of a tread plate in a conventional example.
１ ペダル装置 ２ ペダル本体 ３ パイロット弁 ４ 踏板 ５ ペダルフレーム ６ ペダルカム ６ａ 押圧面部 ６ｂ 軸支部 ８ 支軸 1 Pedal device 2 Pedal body 3 Pilot valve 4 Step plate 5 Pedal frame 6 Pedal cam 6a Pushing surface part 6b Shaft support part 8 Support shaft
Claims (2)
られ、該ペダルフレームの下面に設けたペダルカムが揺
動自在に軸支されたペダル本体と、踏板の踏込みに伴う
ペダルカムの揺動で押圧されて作動する制御バルブとを
用いて構成される操作ペダル装置において、前記ペダル
カムをペダルフレームと一体形成した操作ペダル装置。1. A pedal frame is attached to the lower surface of a tread plate, and a pedal cam provided on the lower surface of the pedal frame is pivotally supported by a pedal body, and the pedal cam is pushed by the rocking motion of the pedal cam when the tread plate is depressed. An operation pedal device configured by using an operating control valve, wherein the pedal cam is integrally formed with a pedal frame.
は、踏板の非踏込み状態で制御バルブのスプール移動方
向に対して略直交する水平面に形成されている操作ペダ
ル装置。2. The operation pedal device according to claim 1, wherein the pressing surface of the pedal cam is formed on a horizontal plane that is substantially orthogonal to the spool movement direction of the control valve when the tread plate is not stepped on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30684695A JPH09123789A (en) | 1995-10-31 | 1995-10-31 | Operating pedal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30684695A JPH09123789A (en) | 1995-10-31 | 1995-10-31 | Operating pedal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09123789A true JPH09123789A (en) | 1997-05-13 |
Family
ID=17961964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30684695A Withdrawn JPH09123789A (en) | 1995-10-31 | 1995-10-31 | Operating pedal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09123789A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009102828A (en) * | 2007-10-22 | 2009-05-14 | Kobelco Contstruction Machinery Ltd | Valve operating device of construction equipment |
| JP2011064064A (en) * | 2010-10-27 | 2011-03-31 | Kobelco Contstruction Machinery Ltd | Valve operating device of construction equipment |
| KR101313711B1 (en) * | 2012-07-27 | 2013-10-01 | 주식회사 디에스윈 | An bidirectional pedal |
| KR101446543B1 (en) * | 2012-10-15 | 2014-10-06 | 한영구 | A pedal usable as a brake pedal as well as an accelerator pedal |
| CN109263470A (en) * | 2016-08-31 | 2019-01-25 | 泉州鑫豪工程机械科技有限公司 | Engineering truck throttle and traveling control system and method |
| KR20190091724A (en) * | 2018-01-29 | 2019-08-07 | 주식회사 아모센스 | A lighting apparatus for a car |
-
1995
- 1995-10-31 JP JP30684695A patent/JPH09123789A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009102828A (en) * | 2007-10-22 | 2009-05-14 | Kobelco Contstruction Machinery Ltd | Valve operating device of construction equipment |
| JP2011064064A (en) * | 2010-10-27 | 2011-03-31 | Kobelco Contstruction Machinery Ltd | Valve operating device of construction equipment |
| KR101313711B1 (en) * | 2012-07-27 | 2013-10-01 | 주식회사 디에스윈 | An bidirectional pedal |
| KR101446543B1 (en) * | 2012-10-15 | 2014-10-06 | 한영구 | A pedal usable as a brake pedal as well as an accelerator pedal |
| CN109263470A (en) * | 2016-08-31 | 2019-01-25 | 泉州鑫豪工程机械科技有限公司 | Engineering truck throttle and traveling control system and method |
| CN109263470B (en) * | 2016-08-31 | 2021-06-15 | 泉州鑫豪工程机械科技有限公司 | Engineering truck accelerator and walking control system and method |
| KR20190091724A (en) * | 2018-01-29 | 2019-08-07 | 주식회사 아모센스 | A lighting apparatus for a car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030107 |