JPH028871Y2 - - Google Patents

Info

Publication number
JPH028871Y2
JPH028871Y2 JP7892984U JP7892984U JPH028871Y2 JP H028871 Y2 JPH028871 Y2 JP H028871Y2 JP 7892984 U JP7892984 U JP 7892984U JP 7892984 U JP7892984 U JP 7892984U JP H028871 Y2 JPH028871 Y2 JP H028871Y2
Authority
JP
Japan
Prior art keywords
support shaft
arm
crawler
traveling device
swing
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
Application number
JP7892984U
Other languages
Japanese (ja)
Other versions
JPS60189477U (en
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 filed Critical
Priority to JP7892984U priority Critical patent/JPS60189477U/en
Publication of JPS60189477U publication Critical patent/JPS60189477U/en
Application granted granted Critical
Publication of JPH028871Y2 publication Critical patent/JPH028871Y2/ja
Granted legal-status Critical Current

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  • Body Structure For Vehicles (AREA)
  • Harvester Elements (AREA)

Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、走行クローラの接地側部分を前後に
案内する転輪群のうち、前後中間部のもののみ
を、上下揺動自在にトラツクフレームに取付けた
揺動アームの遊端に支承させるとともに、前記揺
動アームを下方に揺動付勢してあるクローラ走行
装置に関する。
[Detailed description of the invention] [Industrial field of application] This invention is a track frame that allows only the front and rear intermediate parts of the group of wheels that guide the ground-contacting side of the traveling crawler back and forth to be vertically swingable. The present invention relates to a crawler traveling device in which the swinging arm is supported by the free end of a swinging arm attached to the swinging arm, and the swinging arm is swingingly biased downward.

〔従来技術〕[Prior art]

一般に上記揺動アームの付勢構造は揺動アーム
が下方に向うよう揺動アームに圧縮コイルバネを
配設することで構成されたものが多く採用されて
いる。
Generally, the biasing structure for the swinging arm is often constructed by disposing a compression coil spring on the swinging arm so that the swinging arm faces downward.

〔考案が解決しようとする問題点〕[Problem that the invention attempts to solve]

しかし、圧縮コイルバネで付勢構造が構成され
た場合にはクローラ走行装置自体が走行機体の低
部に配設される関係からコイルバネに泥土が侵入
することが多く揺動アームを上方に持ち上げる作
用があつた場合には泥土によつてコイルバネの圧
縮が妨げられるため揺動アームが揺動できず地上
の突起物等を乗り越える場合等には機体を大きく
揺動させる問題を生じるものであつた。
However, when the biasing structure is configured with compression coil springs, the crawler traveling device itself is installed at the bottom of the traveling body, so mud often gets into the coil springs, and the action of lifting the swing arm upward is difficult. In such cases, the compression of the coil spring is hindered by the muddy soil, so that the swinging arm cannot swing, resulting in a problem in which the aircraft body swings significantly when climbing over a protrusion on the ground or the like.

そして、この問題を解消するため第5図に示す
ものが考えられた。つまり、クローラベルト7に
接当する転輪5aが揺動アーム9に遊転支承さ
れ、揺動アーム9は機体左右方向の支軸13周り
に揺動自在にトラツクフレーム3に配設されてい
る。この揺動アーム9の他端部にはロツド20、
プレート21、ゴム材22でシールされたコイル
バネ23、トラツクフレーム3に取付けられたブ
ラケツト24で成る付勢機構Aがトラツクフレー
ム3の上面に配設され転輪5aをクローラベルト
7方向に付勢するよう構成されている。
In order to solve this problem, the system shown in FIG. 5 was devised. That is, the rolling wheels 5a that come into contact with the crawler belt 7 are rotatably supported by the swing arm 9, and the swing arm 9 is arranged on the track frame 3 so as to be swingable around the support shaft 13 in the left-right direction of the machine. . At the other end of this swing arm 9 is a rod 20,
A biasing mechanism A consisting of a plate 21, a coil spring 23 sealed with a rubber material 22, and a bracket 24 attached to the truck frame 3 is disposed on the upper surface of the truck frame 3 and biases the rolling wheels 5a in the direction of the crawler belt 7. It is configured like this.

この構成のものはゴム材22のシールによつて
コイルバネ23への泥土の侵入を防止するよう構
成されているが、長期の使用でゴム材23が劣化
し表面に亀裂を生じこの亀裂から泥土が侵入しシ
ール効果を発しないばかりでなくコイルバネ23
をゴム材22でシールするのに手間が掛る問題が
あり、又、付勢機構Aがトラツクフレーム3の上
面に設けられるためトラツクフレーム3の上面に
は付勢機構Aの配設空間を必要とするものであつ
た。
This configuration is configured to prevent mud from entering the coil spring 23 by sealing the rubber material 22, but after long-term use, the rubber material 23 deteriorates and cracks occur on the surface, and mud flows through the cracks. Not only does it not penetrate and produce a sealing effect, but the coil spring 23
There is a problem in that it takes time and effort to seal the structure with the rubber material 22, and since the biasing mechanism A is provided on the top surface of the truck frame 3, a space is required for arranging the biasing mechanism A on the top surface of the truck frame 3. It was something to do.

本考案は上記実情に鑑みて為されたものであつ
て、泥土が付勢構造部分に侵入した場合に於ても
付勢構造の動作を妨げることなく良好に揺動アー
ムが揺動できるよう構成されたクローラ走行装置
を構造簡単に提供する点に目的を有する。
The present invention was developed in view of the above-mentioned circumstances, and is constructed so that the swing arm can swing smoothly without interfering with the operation of the biasing structure even if mud invades the biasing structure. The purpose is to provide a crawler traveling device with a simple structure.

〔問題を解決するための手段〕[Means to solve the problem]

本考案の特徴とするところは、前記揺動アーム
を固着した支軸と、トラツクフレームの間に、該
支軸に回転付勢力を与える片持ち状のバネ材を設
けてある点にあり、その作用及び効果は次の通り
である。
A feature of the present invention is that a cantilevered spring member is provided between the support shaft to which the swing arm is fixed and the truck frame, and which applies a rotational biasing force to the support shaft. The action and effect are as follows.

〔作用〕[Effect]

つまり、上記の如く、付勢のための構造が片持
ち状のバネで構成されているため、バネ部分に泥
土の浸入があつた場合に於て揺動アームを上方に
持ち上げる作用が加わつた時にはバネは撓むこと
によつて付勢力を発するため泥土には妨げられる
ことなく揺動アームは揺動する。又、バネが撓む
ことによつて付勢力を発するためシール構造を必
要としない。
In other words, as mentioned above, since the biasing structure is composed of a cantilevered spring, if mud intrudes into the spring part, the action of lifting the swinging arm upwards Since the spring generates a biasing force by bending, the swinging arm swings without being hindered by the mud. Further, since the biasing force is generated by the deflection of the spring, no seal structure is required.

又、上記の如く、揺動アームに支軸を介して片
持状にバネを配設するため、バネの配設方向をト
ラツクフレームに沿せる配設上の工夫で付勢のた
めの構造がトラツクフレーム上面に位置すること
なく配設できる。
In addition, as mentioned above, since the spring is disposed in a cantilevered manner on the swing arm via the support shaft, the biasing structure can be improved by making the arrangement direction of the spring along the track frame. Can be installed without being located on the top surface of the truck frame.

〔考案の効果〕[Effect of idea]

従つて、泥土の影響を受けることなく常に揺動
アームが適正に揺動でき、地上の突起物等の乗り
越えが機体を大きく揺動させることなく行え、し
かも、揺動アームを付勢するための構造がトラツ
クフレーム上面に位置しないようにできるためト
ラツクフレーム上面にクローラベルトの乗れ下り
を支持する転輪等の配設が可能なクローラ走行装
置が構造簡単に提供されるに至つた。
Therefore, the swing arm can always swing properly without being affected by mud, and it is possible to climb over protrusions on the ground without significantly swinging the aircraft. Since the structure is not located on the top surface of the truck frame, a crawler traveling device can be provided with a simple structure in which rollers and the like for supporting the climbing and descending of the crawler belt can be disposed on the top surface of the truck frame.

〔実施例〕〔Example〕

以下、本考案の実施例を図面に基づいて説明す
る。
Hereinafter, embodiments of the present invention will be described based on the drawings.

第1図に示すように、走行機体を構成する機体
フレーム1に縦フレーム2・・を介してトラツク
フレーム3が取付けられている。このトラツクフ
レーム3は固定フレーム3aと可動フレーム3b
とで成り、夫々のフレーム3a,3bに駆動スプ
ロケツト4、多数の転輪5・・緊張輪6が支架さ
れると共に、これらにクローラベルト7が巻回さ
れ、もつてクローラ走行装置が構成されている。
As shown in FIG. 1, a truck frame 3 is attached to a body frame 1 constituting a traveling body through vertical frames 2. This truck frame 3 consists of a fixed frame 3a and a movable frame 3b.
A drive sprocket 4, a large number of rolling wheels 5, and tension wheels 6 are supported on each of the frames 3a and 3b, and a crawler belt 7 is wound around these, thereby forming a crawler traveling device. There is.

前記可動フレーム3bは固定フレーム3aとの
間に介装されたコイルバネ8によつてクローラベ
ルト7が緊張するよう付勢され、又、同図に示す
如く中央部の2つについては揺動アーム9端に支
承されると共に、付勢機構Aによつてクローラベ
ルト7方向に付勢され地上の突起物等の乗り越が
走行機体を大きく揺動させることなく行えるよう
構成されている。
The movable frame 3b is biased by a coil spring 8 interposed between the movable frame 3b and the fixed frame 3a so as to tension the crawler belt 7, and as shown in the same figure, the two central parts are provided with swing arms 9. It is supported at the end and is biased in the direction of the crawler belt 7 by a biasing mechanism A so that it can run over protrusions on the ground without significantly shaking the traveling body.

詳述すると、第2図及び第3図に示すように、
付勢機構Aはアーム部材10と板バネ11によつ
て成り、アーム部材10は揺動アーム9を支承す
るようトラツクフレーム3にベアリング12,1
2を介して貫通配設された支軸13に固設され、
板バネ11はアーム部材10に上方から圧接する
ようトラツクフレーム3にブラケツト14を介し
て片持ち状に配設され、揺動アーム9の上方への
揺動を許容するよう構成されている。
To be more specific, as shown in FIGS. 2 and 3,
The biasing mechanism A consists of an arm member 10 and a leaf spring 11.
is fixedly installed on a support shaft 13 that is disposed through the support shaft 2,
The leaf spring 11 is disposed in a cantilevered manner on the track frame 3 via a bracket 14 so as to press against the arm member 10 from above, and is configured to allow the swing arm 9 to swing upward.

又、クローラベルト7はゴムベルト7aに一対
の突起15a,15aを有する芯金15を一定間
隔で埋設して構成され、更に前記駆動スプロケツ
ト4の突起4a・・が係入する貫通孔7b・・が
連続的に穿設され、又、前記アーム9に支承され
た転輪5a,5aは揺動によつてもクローラベル
ト7から外れ難いよう前記突起15a,15aの
間に入り込むよう配設され、又、他の転輪5
b・・は機体重量を強度高く支持するよう前記突
起15a,15aの外側にまたがるよう配設され
ている。
The crawler belt 7 is constructed by embedding a core bar 15 having a pair of protrusions 15a at regular intervals in a rubber belt 7a, and further includes through holes 7b into which the protrusions 4a of the driving sprocket 4 are inserted. The rolling wheels 5a, 5a, which are continuously bored and supported by the arm 9, are arranged so as to fit between the protrusions 15a, 15a so that they will not easily come off the crawler belt 7 even when rocking, and , other wheels 5
b... are arranged so as to straddle the outside of the protrusions 15a, 15a so as to strongly support the weight of the machine.

〔別実施例〕[Another example]

本実施例では転輪5aを付勢するに支軸13に
カム部材10、トラツクフレーム3に板バネ11
を配設することで行つていたが、これに代えて第
4図に示すように、支軸13に板バネ11を配設
すると共に、トラツクフレーム3に板バネ11の
揺動を規制することで揺動アーム9に付勢力を生
じさせる係止突起16を固設するよう実施して良
い。つまり、揺動系に配設されていた板バネ11
を固定系に配設することも可能である。
In this embodiment, a cam member 10 is attached to the support shaft 13 and a leaf spring 11 is attached to the track frame 3 to urge the rolling wheels 5a.
However, instead of this, as shown in FIG. Therefore, the locking protrusion 16 that generates a biasing force on the swinging arm 9 may be fixedly provided. In other words, the leaf spring 11 installed in the swing system
It is also possible to arrange it in a fixed system.

又、本実施例では付勢機構Aに板バネ11を用
いていたがこれに代えて棒状バネ等を用いても良
くこれらをバネ材Bと称する。
Furthermore, although the leaf spring 11 is used in the biasing mechanism A in this embodiment, a rod-shaped spring or the like may be used in place of this, and these will be referred to as spring members B.

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

図面は本考案に係るクローラ走行装置の実施例
を示し、第1図は全体側面図、第2図は付勢され
た転輪の取付構造を示す縦断背面図、第3図は付
勢された転輪の付勢構造を示す裏面図、第4図は
付勢された転輪の付勢構造の別実施例を示す裏面
図、第5図は付勢された転輪の付勢構造の比較例
を示す裏面図である。 3……トラツクフレーム、5a……転輪、7…
…走行クローラ、9……揺動アーム、10……ア
ーム、13……支軸、B……バネ材。
The drawings show an embodiment of the crawler traveling device according to the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a longitudinal cross-sectional rear view showing the mounting structure of biased wheels, and Fig. 3 is a biased roller traveling device. Figure 4 is a back view showing another embodiment of the biasing structure for the biased rollers, and Figure 5 is a comparison of the biasing structures for the biased rollers. It is a back view which shows an example. 3...Truck frame, 5a...Rolling wheels, 7...
... Traveling crawler, 9... Swinging arm, 10... Arm, 13... Support shaft, B... Spring material.

Claims (1)

【実用新案登録請求の範囲】 走行クローラ7の接地側部分を前後に案内す
る転輪群のうち、前後中間部のもの5aのみ
を、上下揺動自在にトラツクフレーム3に取付
けた揺動アーム9の遊端に支承させるととも
に、前記揺動アーム9を下方に揺動付勢してあ
るクローラ走行装置であつて、前記揺動アーム
9を固着した支軸13と、トラツクフレーム3
の間に、該支軸13に回転付勢力を与える片持
ち状のバネ材Bを設けてあるクローラ走行装
置。 前記バネ材Bの基端をトラツクフレーム3に
固定し、その遊端を支軸13に固設したアーム
10に接当作用させてある実用新案登録請求の
範囲第項に記載のクローラ走行装置。
[Scope of Claim for Utility Model Registration] Of a group of wheels that guide the ground-contacting side portion of the traveling crawler 7 back and forth, only the front and rear intermediate portion 5a is attached to the truck frame 3 so as to be vertically swingable. It is a crawler traveling device in which the swing arm 9 is supported at the free end of the track frame 3, and the swing arm 9 is swing-biased downward.
A crawler traveling device in which a cantilevered spring member B is provided between the support shaft 13 and the support shaft 13 to apply a rotational biasing force. The crawler traveling device according to claim 1, wherein the base end of the spring member B is fixed to the track frame 3, and the free end thereof is brought into contact with an arm 10 fixed to a support shaft 13.
JP7892984U 1984-05-28 1984-05-28 Crawler traveling device Granted JPS60189477U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7892984U JPS60189477U (en) 1984-05-28 1984-05-28 Crawler traveling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7892984U JPS60189477U (en) 1984-05-28 1984-05-28 Crawler traveling device

Publications (2)

Publication Number Publication Date
JPS60189477U JPS60189477U (en) 1985-12-16
JPH028871Y2 true JPH028871Y2 (en) 1990-03-02

Family

ID=30623363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7892984U Granted JPS60189477U (en) 1984-05-28 1984-05-28 Crawler traveling device

Country Status (1)

Country Link
JP (1) JPS60189477U (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0674061B2 (en) * 1989-04-15 1994-09-21 株式会社クボタ Crawler traveling device for work vehicle

Also Published As

Publication number Publication date
JPS60189477U (en) 1985-12-16

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