JPS6328312A - Grass gathering container structure of lawn mower - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、モーアからの搬送風により、刈芝をダクトを
介して集草容器内に送）込むように構成し、前記搬送風
を集草容器の主排風部より排風するように構成してある
芝刈り機の集草容器構造に関する。Detailed Description of the Invention [Industrial Field of Application] The present invention is configured so that cut grass is sent into a grass collecting container via a duct by a conveying wind from a mower, and the conveying wind is collected. The present invention relates to a grass collection container structure for a lawn mower that is configured to exhaust air from a main air exhaust part of the grass container.

〔従来の技術〕[Conventional technology]

芝刈り機において、集草容器が満杯になったかどうかを
検出する機構としては、前記ダクトに風量センサーを設
置し、風量センサーから下手側である集草容器が刈芝で
満杯になれば、モーアからの搬送風の集草容器からの抜
けが悪くなりダクト内の風速が低下するので、この現象
を前記風量センサーで検出して、ブザー又はランプ等に
よシ警告するように構成してある機種がある。In a lawn mower, the mechanism for detecting whether the grass collection container is full is to install an air volume sensor in the duct, and when the grass collection container on the lower side of the air volume sensor becomes full with grass clippings, the mower This is a model that is configured to detect this phenomenon with the air volume sensor and issue a warning with a buzzer or lamp, etc., since the conveyed air from the grass cannot escape from the grass collection container and the wind speed inside the duct decreases. There is.

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

ダクト内に風量センサーを設けた場合、たとえ下手側の
集草容器が刈芝で満杯になって搬送風の抜けが遮断され
たとしても、上手側のモーアからはダクト内に搬送風が
送り込まれてくるので、風量センサー付近での風速は低
下しにくい。　つまシ、芝刈り作業中でのダクト内の風
速と、集草容器が刈芝で満杯になったときのダクト内の
風速との差が十分でなく、集草容器が刈芝で満杯になっ
た場合の状態を風量センサーで適確に検出できない場合
があるのである。If an airflow sensor is installed inside the duct, even if the grass container on the lower side is full of cut grass and the conveyance air is blocked, the conveyance air will still be sent into the duct from the mower on the upper side. Therefore, the wind speed near the airflow sensor is unlikely to decrease. The difference between the wind speed in the duct during lawn mowing and the wind speed in the duct when the grass collection container is full of grass clippings is not sufficient, and the grass collection container is full of grass clippings. In some cases, the air volume sensor may not be able to accurately detect the situation.

ここで本発明は前述の問題に着目して集草容器の満杯状
態の検出精度を向上させることを目的としている。The present invention focuses on the above-mentioned problem and aims to improve the accuracy of detecting the full state of the grass collecting container.

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

本発明の特徴は１記した芝刈シ機の集草容器構造におい
て、集草容器が刈芝で略満杯になると前記主排風部から
の排風が刈芝で遮断されるように構成すると共に、満杯
後のモーアからの搬送風を排風する副排風路を集草容器
に設け、前記副排風路に風量センサーを備えであること
Ｋあシ、その作用及び効果は次のとおシである。A feature of the present invention is that in the grass collection container structure of the lawn mower as described in 1, the grass collection container is configured such that when the grass collection container is almost full with the grass clippings, the exhaust air from the main ventilation section is blocked by the grass clippings. , The grass collecting container shall be provided with a sub-ventilation channel for discharging the conveyed air from the mower after it is full, and the sub-discharge channel shall be equipped with an air volume sensor.The function and effect thereof are as follows. It is.

〔作　用〕[For production]

前述の副徘風路の断面積を十分に小に設定してやれば、
満杯になるまでの芝刈シ作業中ではモーアからの搬送風
の大部分は集草容器の主排風部よシ出て行き、副排風路
を通過する風量は非常に小さい。　そして、刈芝で集草
容器が略満杯になり刈芝によって主排風部からの排風が
遮断されると、モーアからの搬送風の大部分が副排風路
より出て行くことになるので、ここを通過する風速は急
激に上昇し、通常の芝刈り作業中の風速に比べて十分に
大きなものとなる。If the cross-sectional area of the above-mentioned secondary wind path is set small enough,
During lawn mowing work until the container is full, most of the conveyed air from the mower exits through the main ventilation section of the grass collecting container, and the amount of air passing through the sub-exhaust channel is very small. When the grass collection container is almost full with grass clippings and the grass clippings block the exhaust air from the main ventilation section, most of the conveyed air from the mower will exit through the sub-exhaust duct. Therefore, the wind speed passing through this area increases rapidly and becomes sufficiently higher than the wind speed during normal lawn mowing work.

〔発明の効果〕〔Effect of the invention〕

以上のように、副徘風路からの排風に、集草容器が満杯
である状態と芝刈り作業中での状態とで顕著な差が現出
するように構成することができ、この現象を風量センサ
ーで検出することによって集草容器の満杯状態検出精度
が向上することとなった。As described above, it is possible to configure the structure so that there is a noticeable difference in the exhaust air from the secondary air flow path between when the grass collection container is full and when mowing is in progress, and this phenomenon By detecting this with an airflow sensor, the accuracy of detecting the full state of the grass collection container has been improved.

〔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４図に示すように、前車輪（１）及び後車輪（２）で
支持された機体前部にエンジン（３）、機体中央に操縦
部（４）を備えると共に、前記側車輪（＋１　、　＋２
）の間に設けたモーア（６）で刈取った刈芝をダクト（
６）を介して機体後部の集草容器（））に送り込むよう
にして乗用型芝刈り機を構成し７ている。As shown in FIG. 4, an engine (3) is provided at the front of the fuselage supported by front wheels (1) and rear wheels (2), and a control section (4) is provided at the center of the fuselage. +2
) The grass cut by the mower (6) installed between the ducts (
The riding type lawn mower is structured such that the grass is fed into a grass collecting container ()) at the rear of the machine body through the grass collecting container (7).

前記集草容器（７）は第１図及び第４図に示すように、
樹脂性の上部フード（８）と通気性を有する布製で前記
上部フード（８）に対して着脱自在な集草袋（９Ａ）、
（９Ｂ）とから構成されておシ、前記ダクト（６）が上
部フード（８）に設けられた芝投入口（８ａ）に差し込
まれている。　そして、芝投入口（８ａ）の反対側の部
分に防塵網（１０）が張設され、下方に向う副排風路α
〃が形成されると共に、この副排風路（２）にプロベフ
式の風量センサー（２）が設置されている。As shown in FIGS. 1 and 4, the grass collection container (7)
a resin upper hood (8); a grass collection bag (9A) made of breathable cloth and detachable from the upper hood (8);
(9B), and the duct (6) is inserted into the grass input port (8a) provided in the upper hood (8). A dustproof net (10) is installed on the opposite side of the turf inlet (8a), and a sub-exhaust passage α facing downward is installed.
〃 is formed, and a Probev type air volume sensor (2) is installed in this sub-exhaust passage (2).

作業開始時は、第１図に示すようにモーデ（５）で刈取
られた刈芝は搬送風に乗りダクト（６）を介して芝投入
口（８＆）側の集草５Ｑ　（９Ａ）内に送り込゛まれる
と共に、モーア（５）からの搬送風は主に集草ｉ　（９
Ａ）から抜は出て行く。　そして、芝投入口（８ａ）側
の集草袋（９Ａ）が刈芝で満杯になると、刈芝の流れは
となりの集草袋（９Ｂ）に移り刈芝が集草ｉ　（９Ｂ）
内に堆積して行くと共に、モーア（５）からの搬送風は
主に集草袋（９Ｂ）より抜は出て行く。At the beginning of the work, as shown in Figure 1, the grass cut by the mode (5) is carried by the conveying wind and goes through the duct (6) into the grass collection 5Q (9A) on the grass input port (8 &) side. At the same time, the conveying wind from the mower (5) is mainly used to collect grass i (9
From A), nuki will go out. When the grass collection bag (9A) on the grass input port (8a) side is filled with grass clippings, the flow of the grass clippings is transferred to the adjacent grass collection bag (9B), and the grass clippings are transferred to the grass collection bag (9B).
As the grass accumulates inside, the conveying air from the mower (5) mainly leaves the grass collection bag (9B).

そして、両集草袋（９Ａ）、（９Ｂ）が刈芝で満杯に　
−なると、第２図に示すようにモーア（６）からの搬送
風は刈芝の遮断作用によって、両集草袋（９Ａ）、　（
９Ｂ）から抜は出て行くことはできず、前記副徘風路（
６）より出て行くことになる。　この副徘風路（２）は
、集草袋（９Ａ）　、　（９Ｂ）の搬送風が抜は出るこ
とができる通過面積よ）も、その断面積を十分に小に設
定してあるので、両集草袋（９Ａ）、（９Ｂ）が刈芝で
満杯となった後、搬送風が副排風路αηを出て行く際、
十分な高速で出て行き風量センサーα埠を急激に回転さ
せる。　そこで、この現象を電気的に検出して操縦者に
ブザー又はランプ等により警告するのである。Both grass collection bags (9A) and (9B) are filled with grass clippings.
-, as shown in Fig. 2, the conveying wind from the mower (6) is blocked by the cut grass, and the grass collection bags (9A) and (
No. 9B) cannot be exited from the above-mentioned sub-wandering wind path (
6) I will be leaving more often. The cross-sectional area of this secondary air passage (2) is set to be sufficiently small (the area through which the conveying air from the grass collection bags (9A) and (9B) can escape) is set to be sufficiently small. After both grass collection bags (9A) and (9B) are filled with grass clippings, when the conveying air leaves the sub-exhaust channel αη,
Go out at a high enough speed to cause the airflow sensor α to rotate rapidly. Therefore, this phenomenon is detected electrically and the operator is warned by a buzzer or lamp.

〔別突施例〕[Special case]

第３図に示すように、副排風路（ロ）及び風量センサー
＠を芝投入口（８ａ）側に設ける構造としてもよい。　
ただし、この場合に芝投入口（８ａ）Ｋ補助ガイド（至
）を設け、芝投入口（８ａ）から遠い集草袋（９Ｂ）側
から刈芝が送り込まれるようにするとよい。As shown in FIG. 3, a structure may be adopted in which the sub-air exhaust path (b) and the air volume sensor @ are provided on the grass input port (8a) side.
However, in this case, it is preferable to provide an auxiliary guide (to) the grass input port (8a) so that the cut grass is fed from the side of the grass collection bag (9B) that is far from the grass input port (8a).

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

図面は本発明に係る芝刈り機の集草容器構造の実施例を
示し、第１図は芝刈）作業中での搬送風の抜ける状態を
示す集草容器の縦断正面図、第２図は集草容器が刈芝で
満杯になった場合の搬送風の抜ける状、態を示す集草容
器の縦断正面図、第３図は別実施例を示す集草容器の縦
断正面図、第４図は乗用型芝刈り機の全体側面図である
。 （６）・・・・・セーブ、（６）・・・・・ダクト、（
７）・・・・・・集草容器、（６）・・・・・・副徘風
路、（イ）・・・・・・風量センター。The drawings show an embodiment of the structure of the grass collection container for a lawn mower according to the present invention, and FIG. 1 is a longitudinal sectional front view of the grass collection container showing the state in which the conveying air is released during lawn mowing work, and FIG. Fig. 3 is a longitudinal sectional front view of the grass collecting container showing a state in which the conveying air escapes when the grass container is full of cut grass; Fig. 3 is a longitudinal sectional front view of the grass collecting container showing another embodiment; FIG. 1 is an overall side view of a riding lawn mower. (6)...Save, (6)...Duct, (
7)...Grass collection container, (6)...Secondary wind path, (a)...Air volume center.

Claims (1)

【特許請求の範囲】[Claims] モーア（５）からの搬送風により、刈芝をダクト（６）
を介して集草容器（７）内に送り込むように構成し、前
記搬送風を集草容器（７）の主排風部より排風するよう
に構成してある芝刈り機の集草容器構造であつて、前記
集草容器（７）が刈芝で略満杯になると前記主排風部か
らの排風が刈芝で遮断されるように構成すると共に、満
杯後のモーア（５）からの搬送風を排風する副排風路（
１１）を集草容器（７）に設け、前記副排風路（１１）
に風量センサー（１２）を備えてある芝刈り機の集草容
器構造。The cut grass is transferred to the duct (6) by the conveying wind from the mower (5).
A grass collecting container structure for a lawn mower, which is configured to send the conveyed air into the grass collecting container (7) through the grass collecting container (7), and to exhaust the conveyed air from the main exhaust part of the grass collecting container (7). The grass collecting container (7) is configured so that when it is almost full with cut grass, the wind from the main wind exhaust section is blocked by the cut grass, and the grass is removed from the mower (5) after it is full. Sub-exhaust duct that exhausts the carrier air (
11) is provided in the grass collecting container (7), and the sub-exhaust duct (11)
A grass collection container structure for a lawn mower equipped with an airflow sensor (12).