FR2575631A1 - Blades for lawnmowers - Google Patents
Blades for lawnmowers Download PDFInfo
- Publication number
- FR2575631A1 FR2575631A1 FR8600176A FR8600176A FR2575631A1 FR 2575631 A1 FR2575631 A1 FR 2575631A1 FR 8600176 A FR8600176 A FR 8600176A FR 8600176 A FR8600176 A FR 8600176A FR 2575631 A1 FR2575631 A1 FR 2575631A1
- Authority
- FR
- France
- Prior art keywords
- blade
- teeth
- tool
- counter
- blades
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
- A01D34/13—Cutting apparatus
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
- A01D34/13—Cutting apparatus
- A01D34/14—Knife-bars
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
- Disintegrating Or Milling (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
La présente invention concerne une lame pour tondeuses, se composant d'une lame intérieure pourvue de parties de coupe et d'une lame extérieure fixe à double section, destinée à guider correctement la lame intérieure et agissant comme une contre-lame pour celle-ci, afin d'assurer une coupe parfaite. The present invention relates to a blade for mowers, consisting of an inner blade provided with cutting parts and a fixed outer blade with double section, intended to correctly guide the inner blade and acting as a counter blade for the latter. , to ensure a perfect cut.
Une caractéristique de la lame conforme à l'invention consiste dans le profilage spécial des composants, qui permet d'obtenir d'excellents résultats avec un minimum de consommation d'énergie, en éliminas tout risque de blocage par tout type de gazon. A characteristic of the blade according to the invention consists in the special profiling of the components, which makes it possible to obtain excellent results with a minimum of energy consumption, thereby eliminating any risk of blockage by any type of grass.
Des modes de réalisation de l'art antérieur ont été illustrés à titre de référence sur les figures 1 et 2, ou la figure 1 représente en vue en perspective une lame fabriquée conformément aux techniques connues la figure 2 est une vue en perspective d'un détail du meme type de lame, en cours de travail. Embodiments of the prior art have been illustrated by way of reference in FIGS. 1 and 2, or FIG. 1 represents in perspective view a blade manufactured according to known techniques. FIG. 2 is a perspective view of a detail of the same type of blade, during work.
Les lames effectivement utilisées dans les tondeuses se composent généralement d'une pluralité de dents sensiblement triangulaires 1 comportant des arêtes vives, montées, l'une à côté de l'autre, sur des supports 2. The blades actually used in mowers generally consist of a plurality of substantially triangular teeth 1 comprising sharp edges, mounted, one next to the other, on supports 2.
Deux desdites lames sont montées dans des positions opposées sur la tondeuse et elles sont déplacées alternativement. Two of said blades are mounted in opposite positions on the mower and they are moved alternately.
Les lames sont maintenues appliquées l'une contre l'autre au moyen de dispositifs qui agissent sur les supports 2 et en conséquence les pointes des parties à arêtes vives 1 sont dégagées. The blades are kept applied against each other by means of devices which act on the supports 2 and consequently the tips of the parts with sharp edges 1 are released.
L'inconvénient résultant consiste en ce que, pendant la tonte, une coupe nette est réalisée seulement lorsque les bords des dents sont très affûtés , autrement en fait, les pointes des dents ont tendance à diverger et à s'ouvrir de sorte que les brins d'herbe viennent s'accumuler et se coincer entre les dents, comme le montre la figure 2. The resulting disadvantage is that, during mowing, a clean cut is made only when the edges of the teeth are very sharp, otherwise in fact, the tips of the teeth tend to diverge and open up so that the strands of grass accumulate and get caught between the teeth, as shown in Figure 2.
Pour tenter d'éliminer un tel inconvénient, il est nécessaire dXeffectuer de fréquents démontages et affûtages des lames. In an attempt to eliminate such a drawback, it is necessary to frequently disassemble and sharpen the blades.
Récemment on a utilisé des lames dans lesquelles l'élément mobile comportant des parties de coupe glisse à 11 intérieur d'une lame extérieure à double section, qui agit comme un guide pour la lame intérieure mobile. Recently, blades have been used in which the movable member having cutting portions slides inside a double section outer blade, which acts as a guide for the movable inner blade.
La présente invention concerne une lame pour tondeuses qui, outre qu'elle élimine les inconvénients mentionnés ci-dessus, permet d'obtenir une tonte bien meilleure, du fait du profilage spécial des parties, comme cela sera décrit dans la suite en référence aux dessins annexés dans lesquels la figure 3 représente une vue partielle d'une lame conforme à l'invention ; la figure 4 repésente une coupe d'une lame conforme à l'invention la figure 5 est une vue de face partielle de la lame de la figure 4 la figure 6 est une vue en perspective d'une lame conforme à l'invention. The present invention relates to a blade for mowers which, apart from eliminating the drawbacks mentioned above, makes it possible to obtain a much better mowing, due to the special profiling of the parts, as will be described below with reference to the drawings. attached in which Figure 3 shows a partial view of a blade according to the invention; Figure 4 shows a section of a blade according to the invention Figure 5 is a partial front view of the blade of Figure 4 Figure 6 is a perspective view of a blade according to the invention.
L'outil conforme à l'invention comporte une lame intérieure désignée dans son ensemble par 3 et pourvue d'une pluralité de dents 4 sensiblement triangulaires et comportant des arêtes de coupe , ladite lame coulisse en va-etvient à l'intérieur d'une cantre-lan 5 à double-section. Cette dernière comporte un certain nombre de dents 6 qui sont représentées en détail sur les figures 3 à 5. The tool according to the invention comprises an inner blade designated as a whole by 3 and provided with a plurality of teeth 4 substantially triangular and having cutting edges, said blade slides back and forth inside a cantre-lan 5 with double section. The latter has a number of teeth 6 which are shown in detail in FIGS. 3 to 5.
Les dents comportent une pointe sensiblement conique ( cf figure 6 ), et des côtés inclinés d'environ 30-. La partie de coupe 7 des dents de la contre-lame est inclinée d'environ 15 par rapport à l'axe des dents. The teeth have a substantially conical tip (see Figure 6), and inclined sides of about 30-. The cutting part 7 of the teeth of the counter blade is inclined about 15 relative to the axis of the teeth.
Les surfaces supérieure et inférieure de la dent, reliées à la pointe 8, sont inclinées de façon à former un angle de 30". La configuration spéciale des parties décrites ci-dessus permet d'obtenir plusieurs avantages la double contre-lame extérieure, outre qu'elle assure le guidage de la lame intérieure, la maintient toujours solidement, en faisant en sorte qu'une coupe parfaite soit réalisée même quand l'affûtage est insuffisant. The upper and lower surfaces of the tooth, connected to the point 8, are inclined so as to form an angle of 30 ". The special configuration of the parts described above allows to obtain several advantages the double external counter blade, in addition to that it guides the inner blade, always maintains it securely, ensuring that a perfect cut is made even when the sharpening is insufficient.
En outre, du fait de la double section extérieure, la lame de coupe peut se déplacer sur deux supports ( supérieur et inférieur ) de telle sorte que, pendant la tonte, l'herbe ne soit pas incurvée et r-etenue comme avec les lames de llart antérieur mais soit maintenue verticale, en favorisant ainsi une coupe nette et l'empilage ultérieur sur l'arrière, sans aucun blocage, de l'herbe coupée. In addition, due to the double outer section, the cutting blade can move on two supports (upper and lower) so that, during the mowing, the grass is not curved and kept in place as with the blades prior art but be kept vertical, thereby promoting a clean cut and subsequent stacking on the back, without any blockage, of the cut grass.
En outre, du fait de la configuration conique particulière de la pointe avec inclinaison de 30 , il est possible de raccourcir les dents, de sorte que l'herbe est amenée plus rapidement en contact avec la partie de coupe
En outre les dents, ayant une forme de coin, permettent à la lame de mieux s'enfoncer dans le sol, en éliminant ainsi les blocages qui se produisaient parfois pour certains types de prairies, tandis que la partie inclinée de la double contre-lame facilite la progression de l'herbe en direction des parties de coupe en offrant moins de résistance à la coupe.In addition, due to the particular conical configuration of the tip with an inclination of 30, it is possible to shorten the teeth, so that the grass is brought more quickly into contact with the cutting part.
In addition the teeth, having a wedge shape, allow the blade to sink better into the ground, thus eliminating the blockages which sometimes occurred for certain types of meadows, while the inclined part of the double counter blade facilitates the progression of the grass towards the cutting parts by offering less resistance to cutting.
Evidemment les dimensions et les matériaux utilisés peuvent varier en fonction des conditions d'utilisation. Obviously the dimensions and materials used may vary depending on the conditions of use.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8520431U IT8520431V0 (en) | 1985-01-09 | 1985-01-09 | BLADE FOR MOWERS. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2575631A1 true FR2575631A1 (en) | 1986-07-11 |
FR2575631B1 FR2575631B1 (en) | 1990-08-17 |
Family
ID=11166848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR868600176A Expired - Lifetime FR2575631B1 (en) | 1985-01-09 | 1986-01-08 | BLADES FOR MOWERS |
Country Status (15)
Country | Link |
---|---|
BE (1) | BE903994A (en) |
CH (1) | CH666158A5 (en) |
DE (1) | DE3600440A1 (en) |
DK (1) | DK7086A (en) |
EG (1) | EG17603A (en) |
ES (1) | ES291595Y (en) |
FI (1) | FI860067A (en) |
FR (1) | FR2575631B1 (en) |
GR (1) | GR860022B (en) |
IT (1) | IT8520431V0 (en) |
NL (1) | NL8503587A (en) |
NO (1) | NO860053L (en) |
SE (1) | SE8600052L (en) |
TN (1) | TNSN86003A1 (en) |
TR (1) | TR23490A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4041802C1 (en) * | 1990-12-24 | 1992-02-20 | Hans Peter 8459 Etzelwang De Hartmann | |
WO1993020681A1 (en) * | 1992-04-11 | 1993-10-28 | Hans Locher | Device for cutting plants or parts thereof |
EP1046332A1 (en) * | 1999-04-19 | 2000-10-25 | Alfonso Alberto Suarez | Cutting device for agricultural machines |
DE102017107979A1 (en) * | 2017-04-12 | 2018-10-18 | Markus Stadlthanner | mowing |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3284994A (en) * | 1963-10-28 | 1966-11-15 | William E Hamel | Sickle |
GB1155464A (en) * | 1965-07-21 | 1969-06-18 | Int Harvester Co | Reciprocating Mower having Transversely Displaced Cutting Means |
GB1175362A (en) * | 1965-07-13 | 1969-12-23 | Int Harvester Co | Improvements in or relating to Knife Sections for Mowers. |
DE2948634A1 (en) * | 1979-12-04 | 1981-06-11 | Gustav Schumacher Ii | Mower blade for finger bar mowing mechanisms - has top and bottom counter blades for single edged cutting blades |
CH627047A5 (en) * | 1979-07-26 | 1981-12-31 | Schwaninger K Fa | Mowing appliance |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1582437A1 (en) * | 1967-12-06 | 1970-05-14 | Stockey & Schmitz | Mower |
-
1985
- 1985-01-09 IT IT8520431U patent/IT8520431V0/en unknown
- 1985-12-31 NL NL8503587A patent/NL8503587A/en not_active Application Discontinuation
-
1986
- 1986-01-06 CH CH10/86A patent/CH666158A5/en not_active IP Right Cessation
- 1986-01-07 GR GR860022A patent/GR860022B/en unknown
- 1986-01-07 BE BE0/216101A patent/BE903994A/en not_active IP Right Cessation
- 1986-01-07 SE SE8600052A patent/SE8600052L/en not_active Application Discontinuation
- 1986-01-08 FI FI860067A patent/FI860067A/en not_active Application Discontinuation
- 1986-01-08 FR FR868600176A patent/FR2575631B1/en not_active Expired - Lifetime
- 1986-01-08 NO NO860053A patent/NO860053L/en unknown
- 1986-01-08 DK DK7086A patent/DK7086A/en not_active Application Discontinuation
- 1986-01-08 TR TR15/86A patent/TR23490A/en unknown
- 1986-01-08 EG EG08/86A patent/EG17603A/en active
- 1986-01-09 ES ES1986291595U patent/ES291595Y/en not_active Expired
- 1986-01-09 TN TNTNSN86003A patent/TNSN86003A1/en unknown
- 1986-01-09 DE DE19863600440 patent/DE3600440A1/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3284994A (en) * | 1963-10-28 | 1966-11-15 | William E Hamel | Sickle |
GB1175362A (en) * | 1965-07-13 | 1969-12-23 | Int Harvester Co | Improvements in or relating to Knife Sections for Mowers. |
GB1155464A (en) * | 1965-07-21 | 1969-06-18 | Int Harvester Co | Reciprocating Mower having Transversely Displaced Cutting Means |
CH627047A5 (en) * | 1979-07-26 | 1981-12-31 | Schwaninger K Fa | Mowing appliance |
DE2948634A1 (en) * | 1979-12-04 | 1981-06-11 | Gustav Schumacher Ii | Mower blade for finger bar mowing mechanisms - has top and bottom counter blades for single edged cutting blades |
Also Published As
Publication number | Publication date |
---|---|
IT8520431V0 (en) | 1985-01-09 |
ES291595Y (en) | 1987-08-01 |
TNSN86003A1 (en) | 1990-01-01 |
DK7086A (en) | 1986-07-10 |
EG17603A (en) | 1991-08-30 |
FR2575631B1 (en) | 1990-08-17 |
NO860053L (en) | 1986-07-10 |
DK7086D0 (en) | 1986-01-08 |
TR23490A (en) | 1990-02-01 |
NL8503587A (en) | 1986-08-01 |
CH666158A5 (en) | 1988-07-15 |
FI860067A (en) | 1986-07-10 |
SE8600052L (en) | 1986-07-10 |
BE903994A (en) | 1986-05-02 |
DE3600440A1 (en) | 1986-07-10 |
ES291595U (en) | 1986-12-16 |
GR860022B (en) | 1986-04-29 |
SE8600052D0 (en) | 1986-01-07 |
FI860067A0 (en) | 1986-01-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |