JP2560810B2 - Mowing height adjustment device for mowers - Google Patents
Mowing height adjustment device for mowersInfo
- Publication number
- JP2560810B2 JP2560810B2 JP63281655A JP28165588A JP2560810B2 JP 2560810 B2 JP2560810 B2 JP 2560810B2 JP 63281655 A JP63281655 A JP 63281655A JP 28165588 A JP28165588 A JP 28165588A JP 2560810 B2 JP2560810 B2 JP 2560810B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting blade
- operation lever
- rotating arm
- arm body
- blade case
- 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
- Harvester Elements (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 この発明は、草刈機の刈高さ調節装置に関する。Description: TECHNICAL FIELD The present invention relates to a cutting height adjusting device for a mower.
従来の技術、および発明が解決しようとする課題 刈刃を収容する刈刃ケースに、回動アームを介して上
下動自在の車輪を設け、この回動アームには、弾性によ
って横方向への回動可能にして回動アームを上下動操作
しうる操作レバーを設けると共に、前記刈刃ケースに
は、操作レバーの横回動でこの操作レバーを調節操作位
置に係止する係止部を設けた形態の草刈機の刈高さ調節
装置において、刈刃ケースを支持するために生じる車輪
の負荷は、回動アームを介して係止部に係止された操作
レバーで受けることになるため、例えば走行地上面の状
態に基づいて操作レバーには衝激的な荷重や過大な荷重
が生じ易く、従って操作レバーが変形するとか破損する
等の虞れがある。2. Description of the Related Art Conventional techniques and problems to be solved by the invention A cutting blade case accommodating a cutting blade is provided with vertically movable wheels via a rotation arm, and the rotation arm elastically rotates in a lateral direction. The cutting blade case is provided with an operating lever that can move the rotating arm up and down, and the cutting blade case is provided with a locking portion that locks the operating lever at the adjusting operation position by laterally rotating the operating lever. In the cutting height adjusting device for a grass mower in the form, since the load of the wheel generated for supporting the cutting blade case is received by the operation lever locked to the locking portion via the rotating arm, for example, An impulsive load or an excessive load is likely to be generated on the operation lever based on the state of the running ground surface, and therefore the operation lever may be deformed or damaged.
課題を解決するための手段 この発明は、刈刃（１）を収容する刈刃ケース（２）
に回動アーム体（３）を介して上下動可能に車輪（４）
を設け、前記回動アーム体（３）と共に回動可能な操作
レバー（５）を設け、該操作レバー（５）を刈刃ケース
（２）に固定した係止部（６）に係脱可能に設けた草刈
機において、前記操作レバー（５）を係止部（６）から
外れる方向に揺動可能とするよう板状バネ（18）を操作
レバー（５）の基部に設け、板状バネ（18）より上部の
操作レバー（５）の二個所で前記回動アーム体（３）と
係合し、該二個所の係合個所の間で操作レバー（５）が
前記係止部（６）と係合可能とする構成としたことを特
徴とする草刈機の刈高さ調節装置の構成とする。Means for Solving the Problems The present invention provides a cutting blade case (2) for accommodating a cutting blade (1).
Wheels (4) that can move up and down via a rotating arm body (3)
Is provided with an operating lever (5) which can be rotated together with the rotating arm body (3), and the operating lever (5) can be engaged with and disengaged from a locking portion (6) fixed to the cutting blade case (2). In the lawn mower provided in, a plate spring (18) is provided at the base of the operation lever (5) so that the operation lever (5) can be swung in a direction away from the locking portion (6). Two parts of the operation lever (5) above the (18) engage with the rotating arm body (3), and the operation lever (5) is located between the two engagement parts and the locking part (6). ) And a cutting height adjusting device for a mower.
発明の作用、および効果 操作レバー（５）を横方向へ回動させて刈刃ケース
（２）の係止部（６）から離脱させた後、一方向又は逆
方向へ回動操作すると、支持体（９）の上下両支持部
（７）（８）、回動アーム体（３）を介して車輪（４）
を上動又は下動させ、操作レバー（５）を調節操作位置
で逆の横方向へ回動させて係止部（６）に係止させるこ
とによって、刈刃ケース（２）に対する車輪（４）の上
下変位で刈高さが調節される。Action and effect of the invention When the operation lever (5) is pivoted in the lateral direction to disengage from the locking portion (6) of the cutting blade case (2), it is pivoted in one direction or in the opposite direction to support. Wheels (4) through both upper and lower support parts (7) and (8) of the body (9) and the rotating arm body (3)
Of the wheel (4) with respect to the cutting blade case (2) by moving the operating lever (5) upward or downward and rotating the operating lever (5) at the adjusting operation position in the opposite lateral direction to engage with the engaging portion (6). The height of cutting is adjusted by the vertical displacement of).
よって、この発明の草刈機の刈高さ調節装置は、操作
レバー（５）の基部に設けた板状バネ（18）により操作
レバー（５）を係止部（６）から外れる方向に揺動でき
る構成としているので、刈高さ調節装置の構造が簡単に
なり、軽量化、コストダウンが図れ、なおかつ、板状バ
ネ（18）より上部の操作レバー（５）の二個所で回動ア
ーム体（３）と係合し、該二個所の係合個所の間で操作
レバー（５）が前記係止部（６）と係合可能とする構成
としたので、板状バネ（18）の強度によらず操作レバー
（５）により強固に回動アーム体（３）を支持でき、刈
刃ケース（２）の支持強度を向上させられ、車輪（４）
の衝撃荷重が加わって操作レバーが曲がったり捻じれた
りする等の従来の問題が起こりにくくなった。Therefore, the mowing height adjusting device for a mower according to the present invention swings the operation lever (5) in a direction to disengage from the locking portion (6) by the plate-like spring (18) provided at the base of the operation lever (5). Since the cutting height adjusting device has a simple structure, the weight and cost can be reduced, and the rotating arm body is provided at two positions, the operating lever (5) above the plate spring (18). Since the operating lever (5) is engaged with the locking portion (6) between the two engaging points, the strength of the leaf spring (18) is increased. The turning arm body (3) can be firmly supported by the operation lever (5) regardless of the position, and the supporting strength of the cutting blade case (2) can be improved, and the wheel (4)
The conventional problems such as the operation lever being bent or twisted due to the impact load are less likely to occur.
実施例 なお、図例において、第４図は草刈機の側面図を示
し、刈刃（１）を収容する収容部（10）と後端部の刈草
を排出する排出口（11）とを有した刈刃ケース（２）を
設け、該収容部（10）の上側には、該刈刃（１）に伝動
する垂直状の出力軸（12）を有した原動機（13）を設
け、又該刈刃ケース（２）の後端上部には、操縦ハンド
ル（14）を後方に向けて突設する。Embodiment In addition, in the illustrated example, FIG. 4 shows a side view of the mower, which has an accommodating portion (10) for accommodating the cutting blade (1) and an outlet (11) for discharging the mowing grass at the rear end. A cutting blade case (2) is provided, and a prime mover (13) having a vertical output shaft (12) that is transmitted to the cutting blade (1) is provided above the housing portion (10). On the upper part of the rear end of the cutting blade case (2), a steering handle (14) is provided so as to project rearward.
該刈刃ケース（２）の後端下部には、前記原動機（1
3）から伝動される左右方向の伝動軸（15）を支承した
左右一対の軸承体（16）（16）を設け、この軸承体（1
6）の外側には、該伝動軸（15）から車輪（４）に伝動
する伝動機構を内装した回動アーム体（３）を回動自在
に支承させる。At the lower rear end of the cutting blade case (2), the prime mover (1
3) A pair of left and right bearings (16) (16) supporting the left and right transmission shaft (15) is provided, and this bearing (1
A rotating arm body (3) having a transmission mechanism for transmitting power from the transmission shaft (15) to the wheels (4) is rotatably supported on the outside of 6).
前記刈刃ケース（２）側壁の外側面には、前記伝動軸
（15）を中心とする放射状複数の係止溝（17）（17）を
有した円弧状の係止部（６）を設け、又前記回動アーム
体（３）の内側には、前記車輪（４）の内側面に沿い、
かつ車輪（４）の外径に沿って屈折する板状の支持体
（９）を設け、この支持体（９）には、当該支持体
（９）の直立辺部から屈折辺部に亘る長孔部の支持部
（７）と、前記係止部（６）の下方に位置して内方に向
け突出する二双状の支持部（８）とを設ける。An arcuate locking portion (6) having a plurality of radial locking grooves (17) (17) centered on the transmission shaft (15) is provided on the outer surface of the side wall of the cutting blade case (2). Inside the rotating arm body (3), along the inner surface of the wheel (4),
Moreover, a plate-shaped support body (9) that bends along the outer diameter of the wheel (4) is provided, and this support body (9) has a length from the upright side portion to the bend side portion of the support body (9). A support portion (7) for the hole portion and a two-fold support portion (8) located below the locking portion (6) and protruding inward are provided.
該支持体（９）の下端部には、屈折して前記刈刃ケー
ス（２）側壁の方向に弾発付勢する板状ばね（18）をボ
ルト締結し、又、このばね（18）の上端部には、該支持
体（９）の上下両支持部（７）（８）に左右動自在に係
合すると共に、前記係止部（６）の係止溝（17）に嵌入
する嵌入部を有した操作レバー（５）の下端部を固着す
る。A plate-like spring (18) that bends and elastically urges toward the side wall of the cutting blade case (2) is bolted to the lower end of the support (9). The upper end portion is a fitting member that engages with both upper and lower support portions (7) and (8) of the support body (9) so as to be movable left and right, and is fitted into the locking groove (17) of the locking portion (6). The lower end of the operating lever (5) having a section is fixed.
次に作用について説明する。車輪（４）は、回動アー
ム体（３）、軸承体（16）を介して刈刃ケース（２）の
側壁に支持されると共に、回動アーム体（３）の回動
は、支持体（９）、上下両支持部（７）（８）及び操作
レバー（５）を介して係止部（６）の係止溝（17）で係
止される。Next, the operation will be described. The wheel (4) is supported by the side wall of the cutting blade case (2) via the rotating arm body (3) and the bearing body (16), and the rotating arm body (3) is rotated by the support body. (9) The upper and lower support portions (7) and (8) and the operating lever (5) are engaged in the engaging groove (17) of the engaging portion (6).
ばね（18）に抗して操作レバー（５）を横方向へ回動
させて係止溝（17）から離脱させた後、前方又は後方へ
回動操作すると、回動アーム体（３）を介して車輪
（４）が刈刃ケース（２）に対して下降又は上昇するこ
とによって草の刈高さが調節され、調節位置で操作レバ
ー（５）をばね（18）によって係止溝（17）に係合させ
ると、車輪（４）は調節位置で固定される。After rotating the operating lever (5) laterally against the spring (18) to disengage it from the locking groove (17), the rotating arm body (3) is moved forward or backward. The cutting height of the grass is adjusted by lowering or raising the wheel (4) with respect to the cutting blade case (2) through the wheel (4), and the operating lever (5) is locked by the spring (18) at the adjusting position by the locking groove (17). ), The wheel (4) is locked in the adjusted position.
なお、前部の左右車輪（４）（４）の支持構成を後部
車輪（４）（４）と同様の構成にすることによって、刈
刃（１）の刈取姿勢を地上面に対して平行或いは傾斜さ
せうると共に、刈高さを調節することができる。By setting the support structure of the left and right wheels (4) (4) at the front part to the same structure as the rear wheels (4) (4), the mowing posture of the cutting blade (1) is parallel to the ground surface or It can be tilted and the cutting height can be adjusted.
図はこの発明の一実施例を示すもので、第１図は側面
図、第２図は後面図、第３図は一部の斜面図、第４図は
全体の側面図である。 図中、符号（１）は刈刃、（２）は刈刃ケース、（３）
は回動アーム体、（４）は車輪、（５）は操作レバー、
（６）は係止部、（７）（８）は支持部、（９）は支持
体を示す。1 is a side view, FIG. 2 is a rear view, FIG. 3 is a partial oblique view, and FIG. 4 is an overall side view. In the figure, reference numeral (1) is a cutting blade, (2) is a cutting blade case, and (3)
Is a rotating arm body, (4) is a wheel, (5) is an operation lever,
(6) shows a locking part, (7) and (8) show a support part, and (9) shows a support.
Claims (1)
回動アーム体（３）を介して上下動可能に車輪（４）を
設け、前記回動アーム体（３）と共に回動可能な操作レ
バー（５）を設け、該操作レバー（５）を刈刃ケース
（２）に固定した係止部（６）に係脱可能に設けた草刈
機において、前記操作レバー（５）を係止部（６）から
外れる方向に揺動可能とするよう板状バネ（18）を操作
レバー（５）の基部に設け、板状バネ（18）より上部の
操作レバー（５）の二個所で前記回動アーム体（３）と
係合し、該二個所の係合個所の間で操作レバー（５）が
前記係止部（６）と係合可能とする構成としたことを特
徴とする草刈機の刈高さ調節装置。1. A cutting blade case (2) for accommodating a cutting blade (1) is provided with a wheel (4) capable of moving up and down through a rotating arm body (3), and together with the rotating arm body (3). A lawn mower provided with a rotatable operation lever (5) and detachably provided on a locking portion (6) fixed to the cutting blade case (2), wherein the operation lever (5) is provided. ) Is provided at the base of the operation lever (5) so that the plate spring (18) can be swung in the direction of disengagement from the locking portion (6), and the operation lever (5) above the plate spring (18) It is configured such that the rotating arm body (3) is engaged at two points, and the operation lever (5) is engageable with the locking portion (6) between the two engaging points. A characteristic cutting height adjustment device for mowers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63281655A JP2560810B2 (en) | 1988-11-07 | 1988-11-07 | Mowing height adjustment device for mowers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63281655A JP2560810B2 (en) | 1988-11-07 | 1988-11-07 | Mowing height adjustment device for mowers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02128619A JPH02128619A (en) | 1990-05-17 |
| JP2560810B2 true JP2560810B2 (en) | 1996-12-04 |
Family
ID=17642130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63281655A Expired - Lifetime JP2560810B2 (en) | 1988-11-07 | 1988-11-07 | Mowing height adjustment device for mowers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2560810B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4938833B2 (en) * | 2009-09-18 | 2012-05-23 | 株式会社オーレック | Mower |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0219010Y2 (en) * | 1984-12-01 | 1990-05-25 |
-
1988
- 1988-11-07 JP JP63281655A patent/JP2560810B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02128619A (en) | 1990-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3269100A (en) | Height adjustment mechanism for lawn mowers | |
| US4487006A (en) | Lawn mower | |
| US4998948A (en) | Lawn mower | |
| EP0314677B1 (en) | Grass cutter | |
| US4321784A (en) | Height of cut adjustment | |
| US8297032B2 (en) | Walk-behind lawnmower | |
| US4493180A (en) | Lawn mower dead man control | |
| US3093948A (en) | Rotating disk mower with vertically adjustable rotating blade | |
| US6971223B2 (en) | Wheeled trimmer device of adjustable height | |
| EP0965259B1 (en) | Interconnection mechanism | |
| JP2560810B2 (en) | Mowing height adjustment device for mowers | |
| US5819514A (en) | Pivoting wheel interlock | |
| US11585394B2 (en) | Work machine | |
| US4811552A (en) | Propelling drive transmission structure for walking operator type lawn mower | |
| EP1597956A1 (en) | Walk behind mower with clutch | |
| JP2556283B2 (en) | Mower | |
| JPS606181Y2 (en) | Mower front gauge wheel support device | |
| JP4443484B2 (en) | Walking mower | |
| JP3204491B2 (en) | Aircraft ground height adjustment device | |
| JPH0521528B2 (en) | ||
| JPS6232813A (en) | Grass reaper | |
| JP2525911Y2 (en) | Mowing blade drive structure of mower | |
| JP4160212B2 (en) | Mounting structure of grass cutting tillage nail in grass cutting tillage device | |
| JPH0226271Y2 (en) | ||
| JPH0226270Y2 (en) |