JPH0728067Y2 - Track structure of running parts such as backhoe - Google Patents
Track structure of running parts such as backhoeInfo
- Publication number
- JPH0728067Y2 JPH0728067Y2 JP1988070793U JP7079388U JPH0728067Y2 JP H0728067 Y2 JPH0728067 Y2 JP H0728067Y2 JP 1988070793 U JP1988070793 U JP 1988070793U JP 7079388 U JP7079388 U JP 7079388U JP H0728067 Y2 JPH0728067 Y2 JP H0728067Y2
- Authority
- JP
- Japan
- Prior art keywords
- crawler belt
- backhoe
- cored bars
- bars
- running
- 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 - Lifetime
Links
Landscapes
- Component Parts Of Construction Machinery (AREA)
- Body Structure For Vehicles (AREA)
Description
【考案の詳細な説明】 （イ） 産業上の利用分野 本考案は、バックホー等の走行部の履帯構造に関するも
のである。[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a crawler track structure for a running unit such as a backhoe.
（ロ） 従来の技術 従来、バックホー等の走行部の履帯は、第４図に示すよ
うに、中央部に左右に対向する履帯案内突起（ａ）
（ａ）を有する芯金（ｂ）を、前後方向に一定間隔を開
けて配置し、芯金（ｂ）を弾性ゴム体により被着して無
端帯状としている。(B) Conventional Technology Conventionally, as shown in FIG. 4, a crawler belt for a running portion such as a backhoe has a crawler belt guide protrusion (a) facing left and right at a central portion.
The cored bar (b) having (a) is arranged at regular intervals in the front-rear direction, and the cored bar (b) is covered with an elastic rubber body to form an endless belt.
そして、各芯金（ｂ）に設けた履帯案内突起（ａ）
（ａ）を、左右側周縁部に鍔部（ｄ）（ｄ）を有し、履
帯の下側回動側を案内する転動輪（ｅ）の周面に、鍔部
（ｄ）（ｄ）の内方で当接させるようにしている。And the track guide protrusion (a) provided on each core metal (b)
(A) has flanges (d) and (d) on the left and right peripheral portions, and the flanges (d) and (d) are provided on the peripheral surface of the rolling wheel (e) that guides the lower rotation side of the crawler belt. The contact is made inside.
（ハ） 考案が解決しようとする課題 ところが、かかる履帯の各芯金（ｂ）は、弾性ゴム体
（ｃ）より連結されているだけであるために、左右横方
向の剛性がなく、不整地での走行時又は旋回時等に地面
との接触抵抗により、履帯に左右横方向からの外力が作
用して、芯金の前後配列がずらされてしまい、各芯金
（ｂ）の履帯案内突起（ａ）（ａ）が転動輪（ｅ）の左
右鍔部（ｄ）（ｄ）の内方から外方に外れて、履帯が脱
輪してしまうと問題があった。(C) Problem to be solved by the invention However, since each core metal (b) of such a crawler belt is only connected from the elastic rubber body (c), there is no rigidity in the left and right lateral directions, and uneven ground is present. Due to contact resistance with the ground during running or turning around, the crawler belt is subjected to an external force from the left and right lateral directions, and the front and rear arrangement of the cored bars is displaced, and the track guide projections of each cored bar (b). There is a problem that (a) and (a) are dislocated from the inside of the left and right flanges (d) and (d) of the rolling wheel (e) to the outside, and the crawler belt is derailed.
（ニ） 課題を解決するための手段 そこで、中央部に左右に対向する履帯案内突起を有する
芯金を、前後に一定間隔を開けて多数配列し、同芯金を
弾性ゴム体により被着して無端帯状としてなるバックホ
ー等の走行部の履帯構造において、各芯金の前後側部
に、前後に隣接する各芯金を嵌合接続して芯金相互の横
ずれを規制する凹部若しくは凸部を設け、しかも、上記
芯金の凹部と凸部の嵌合接続面を、摺動抵抗の小さい円
弧面としたことを特徴とするバックホー等の走行部の履
帯構造を提供せんとするものである。(D) Means for Solving the Problems Therefore, a large number of cored bars having crawler belt guide protrusions facing each other in the center are arranged in the front and rear at regular intervals, and the cored bars are covered with an elastic rubber body. In the track structure of the running part such as a backhoe that is endless belt-shaped, a concave portion or a convex portion that regulates the lateral displacement between the core bars by fitting and connecting the core bars adjacent to the front and back to the front and rear side parts of the core bars. Further, the present invention provides a crawler belt structure for a running part such as a backhoe, characterized in that the fitting connection surface between the concave portion and the convex portion of the core metal is an arc surface having a small sliding resistance.
（ホ） 作用・効果 本考案では、各芯金の前後側部に凹部若しくは凸部を設
け、前後に隣接する各芯金の凹凸部を嵌合接続すること
により、芯金相互の横ずれを規制することができるため
に、不整地での走行時又は旋回時等に地面との接触抵抗
により、履帯に左右横方向からの外力が作用しても、芯
金の接合配列がずらされるという不具合が生じず、履帯
の脱輪を確実に防止することができる。(E) Operation / Effects In the present invention, recesses or protrusions are provided on the front and rear side portions of each core metal, and the concavo-convex portions of the front and rear adjacent core metals are fitted and connected to each other to prevent lateral displacement of the core metals. Therefore, even if an external force is applied to the crawler track from the left and right lateral directions due to contact resistance with the ground during traveling or turning on rough terrain, the joint arrangement of the cored bars is displaced. It does not occur, and it is possible to reliably prevent the track from derailing.
しかも、芯金の凹部と凸部との嵌合接合面を、摺動抵抗
の小さい円弧面にすることにより、履帯の回転巻付方向
での凹凸部の嵌合接続部の摺動を円滑にすることがで
き、同嵌合接続部からの騒音の発生を防止すると共に、
履帯の円滑な回動を確保することができ、また、摺動抵
抗が小さいことから凹部及び凸部の摩耗が少なく、寿命
を延長することができる。Moreover, by making the fitting joint surface between the concave portion and the convex portion of the core bar an arc surface having a small sliding resistance, the fitting connection portion of the uneven portion in the rotational winding direction of the crawler belt can be smoothly slid. It is possible to prevent the generation of noise from the fitting connection portion,
It is possible to ensure a smooth rotation of the crawler belt, and since the sliding resistance is small, the wear of the concave portion and the convex portion is small, and the life can be extended.
さらに、芯金の前後側部に凹凸部を設けるだけであるた
めに、芯金の製造を簡易に、かつ低コストにて行なえ
る。Further, since the concave and convex portions are only provided on the front and rear side portions of the cored bar, the cored bar can be manufactured easily and at low cost.
（ヘ） 実施例 本考案の実施例を図面にもとづき詳説すれば、第１図に
示す（Ａ）はバックホーであり、（１）は走行部、
（２）は同走行部（１）上に載設した旋回台、（３）は
同旋回台（２）上に設けた運転部、（４）は原動機部、
（５）は旋回台（２）の前端に取付けた掘削装置であ
る。(F) Embodiments An embodiment of the present invention will be described in detail with reference to the drawings. (A) shown in FIG. 1 is a backhoe, (1) is a running part,
(2) is a swivel mounted on the traveling section (1), (3) is a driving section provided on the swivel (2), (4) is a motor section,
(5) is an excavator attached to the front end of the swivel base (2).
走行部（１）は、走行フレーム（６）の前後端に取付け
た駆動輪（７）と従動輪（８）間に履帯（９）を巻回
し、走行フレーム（６）の中途部下側に、履帯（９）の
下側回動側（９′）を案内する転動輪（10）を、転動輪
軸（10′）を介して軸架している。The traveling unit (1) has a crawler belt (9) wound around a drive wheel (7) and a driven wheel (8) attached to the front and rear ends of the traveling frame (6), and is provided on the lower side of a middle portion of the traveling frame (6). A rolling wheel (10) for guiding the lower rotation side (9 ') of the crawler belt (9) is mounted via a rolling wheel shaft (10').
そして、転動輪（10）は、第２図に示すように、左右側
周縁部に鍔部（10a）（10a）を形成している。Then, as shown in FIG. 2, the rolling wheel (10) has flange portions (10a) (10a) formed on the left and right peripheral portions.
また、履帯（９）は、第２図及び第３図に示すように、
前後に一定間隔を開けて多数配列し、同芯金（11）を弾
性ゴム対（12）により被着して無端帯状としている。
（14）は履帯（９）の中央部に設け、駆動輪（７）の歯
が係合する係合孔である。Further, the crawler belt (9) is, as shown in FIGS. 2 and 3,
A large number of concentric bars (11) are attached by elastic rubber pairs (12) to form an endless belt, with a large number of concentric bars arranged at regular intervals in the front and rear.
Reference numeral (14) is an engaging hole provided at the center of the crawler belt (9) for engaging the teeth of the drive wheel (7).
芯金（11）は、芯金本体（11a）と、同芯金本体（11a）
の中央部より左右に対向させて上方へ立上げた履帯案内
突起（11b）（11b）とを一体成形してなり、芯金本体
（11a）の左右側中途部に前後方向に突出状の前後左右
突出部（11c）（11c）（11′ｃ）（11′ｃ）を形成し、
前左右突出部（11c）（11c）に平面視半円弧凸状の凸部
（11d）（11d）を形成すると共に、後左右突出部（11′
ｃ）（11′ｃ）に平面視半円弧状の凹部（11′ｄ）（1
1′ｄ）を形成している。The core bar (11) is the same as the core bar body (11a).
Crawler track guide protrusions (11b) (11b) that are erected upward from the center of the core are integrally molded, and the front and rear projections are formed in the front-rear direction in the middle part on the left and right sides of the core metal body (11a). Left and right protrusions (11c) (11c) (11'c) (11'c) are formed,
The front left and right protrusions (11c) (11c) are formed with convex portions (11d) (11d) having a semi-circular convex shape in plan view, and the rear left and right protrusions (11 '
c) (11'c) has a concave (11'd) (1
1'd) is formed.
そして、前後に隣接する各芯金（11）の凹部（11′ｄ）
（11′ｄ）と凸部（11d）（11d）とを嵌合させて、全て
の芯金（11）を前後方向に接続している。Then, the recesses (11'd) of the core bars (11) adjacent to each other in the front and rear
(11'd) and the projections (11d) and (11d) are fitted to connect all the cores (11) in the front-rear direction.
従って、本実施例によれば、以下のような作用効果が生
起される。Therefore, according to this embodiment, the following operational effects are produced.
すなわち、各芯金（11）の前側部に凸部（11d）を形成
すると共に、後側部に凹部（11′ｄ）を形成し、前後に
隣接する各芯金の凹凸部（11′ｄ）（11d）を嵌合接続
することにより、芯金相互の横ずれを規制することがで
きるために、不整地での走行時又は旋回時等に地面との
接触抵抗により、履帯に左右横方向からの外力が作用し
ても、芯金（11）の前後配列がずらされるという不具合
が生じず、履帯（９）の脱輪を確実に防止することがで
きる。That is, the convex portion (11d) is formed on the front side portion of each core metal (11) and the concave portion (11'd) is formed on the rear side portion thereof, so that the concavo-convex portion (11'd) of each core metal adjacent to the front and rear is formed. ) (11d) can be fitted and connected to each other to regulate the lateral displacement of the cores, so contact resistance with the ground during running or turning on uneven terrain can cause lateral shifts in the track. Even if an external force is applied, the front and rear arrangement of the cored bar (11) is not displaced, and it is possible to reliably prevent the crawler belt (9) from being derailed.
しかも、芯金（11）の凹部（11′ｄ）と凸部（11d）と
の嵌合接合面を、摺動抵抗の小さい円弧面にしているた
めに、履帯（９）の回転巻付方向での凹凸部（11d）（1
1d）の嵌合接続部の摺動を円滑にすることができ、同嵌
合接続部からの騒音に発生を防止すると共に、履帯
（９）の円滑な回動を確保することができる。Moreover, since the fitting joint surface between the concave portion (11'd) and the convex portion (11d) of the cored bar (11) is an arc surface having a small sliding resistance, the crawler belt (9) is wound in the rotating winding direction. Concavo-convex part (11d) (1
It is possible to make the fitting connection portion of 1d) slide smoothly, prevent generation of noise from the fitting connection portion, and ensure smooth rotation of the crawler belt (9).
さらに、芯金（11）の前後側部に凹凸部（11′ｄ）（11
d）を設けるだけであるために、芯金（11）の製造を簡
易に、かつ低コストにて行なえる。Further, the concave and convex portions (11'd) (11
Since only d) is provided, the cored bar (11) can be manufactured easily and at low cost.
第１図は、本考案による履帯構造を有するバックホーの
側面図。 第２図は、同履帯構造を示す一部平面図。 第３図は、同履帯構造を示す一側面図。 第４図は、従来の履帯構造を示す一部平面図。 （Ａ）：バックホー （11）：芯金 （11d）：凸部 （11′ｄ）：凹部 （12）：弾性ゴム体FIG. 1 is a side view of a backhoe having a crawler track structure according to the present invention. FIG. 2 is a partial plan view showing the crawler belt structure. FIG. 3 is a side view showing the crawler belt structure. FIG. 4 is a partial plan view showing a conventional crawler belt structure. (A): Backhoe (11): Core bar (11d): Convex part (11'd): Recessed part (12): Elastic rubber body
Claims (1)
b）（11b）を有する芯金（11）を、前後に一定間隔を開
けて多数配列し、同芯金（11）を弾性ゴム体（12）によ
り被着して無端帯状としてなるバックホー等の走行部の
履帯構造において、各芯金（11）の前後側部に、前後に
隣接する各芯金（11）を嵌合接続して芯金相互の横ずれ
を規制する凹部（11′ｄ）若しくは凸部（11d）を設
け、しかも、上記芯金（11）の凹部（11′ｄ）と凸部
（11d）の嵌合接続面を、摺動抵抗の小さい円弧面とし
たことを特徴とするバックホー等の走行部の履帯構造。1. A crawler belt guide projection (11) facing left and right in a central portion.
b) A large number of cored bars (11) having (11b) are arranged at regular intervals in the front and rear, and the cored bars (11) are covered with an elastic rubber body (12) to form an endless belt. In the crawler belt structure of the running portion, recessed portions (11'd) for restricting lateral displacement between the cored bars by fitting and connecting the cored bars (11) adjacent to the front and rear to the front and rear side parts of the cored bars (11), or The present invention is characterized in that a convex portion (11d) is provided, and a fitting connection surface between the concave portion (11'd) of the core metal (11) and the convex portion (11d) is an arc surface having a small sliding resistance. Track structure of running parts such as backhoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988070793U JPH0728067Y2 (en) | 1988-05-27 | 1988-05-27 | Track structure of running parts such as backhoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988070793U JPH0728067Y2 (en) | 1988-05-27 | 1988-05-27 | Track structure of running parts such as backhoe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01173091U JPH01173091U (en) | 1989-12-07 |
| JPH0728067Y2 true JPH0728067Y2 (en) | 1995-06-28 |
Family
ID=31296019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988070793U Expired - Lifetime JPH0728067Y2 (en) | 1988-05-27 | 1988-05-27 | Track structure of running parts such as backhoe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0728067Y2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2508801Y2 (en) * | 1989-04-27 | 1996-08-28 | 株式会社小松製作所 | Mandrel for rubber crawler |
| JP2551937Y2 (en) * | 1990-10-18 | 1997-10-27 | 福山ゴム工業 株式会社 | Rubber track core and rubber track |
| JP2696282B2 (en) * | 1991-08-30 | 1998-01-14 | 株式会社小松製作所 | Rubber tracks for tracked vehicles |
| JP2601638Y2 (en) * | 1992-04-30 | 1999-11-29 | 福山ゴム工業株式会社 | Rubber track |
| AU2001256754A1 (en) * | 2000-05-15 | 2001-11-26 | Fukuyama Gomu Kogyo Kabushiki Kaisha | Rubber crawler |
| JP5382762B2 (en) * | 2008-01-17 | 2014-01-08 | カモプラスト コリア株式會社 | Elastic crawler |
| JP5836627B2 (en) * | 2011-04-18 | 2015-12-24 | 株式会社ブリヂストン | Crawler mandrel and elastic crawler |
| JP2020142683A (en) * | 2019-03-07 | 2020-09-10 | 株式会社ブリヂストン | Core grid for crawler and elastic crawler |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54146338A (en) * | 1978-05-09 | 1979-11-15 | Iseki & Co Ltd | Crawler for movable agricultural machine using rubber shoe belt |
| JPS56149262A (en) * | 1980-04-22 | 1981-11-19 | Yanmar Agricult Equip Co Ltd | Rubber crawler |
| JPH01154980U (en) * | 1988-04-12 | 1989-10-25 |
-
1988
- 1988-05-27 JP JP1988070793U patent/JPH0728067Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01173091U (en) | 1989-12-07 |
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