WO2008010080A2 - Lever pruning shears - Google Patents
Lever pruning shears Download PDFInfo
- Publication number
- WO2008010080A2 WO2008010080A2 PCT/IB2007/002158 IB2007002158W WO2008010080A2 WO 2008010080 A2 WO2008010080 A2 WO 2008010080A2 IB 2007002158 W IB2007002158 W IB 2007002158W WO 2008010080 A2 WO2008010080 A2 WO 2008010080A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lever
- blades
- guide piece
- hand
- scissors
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/02—Secateurs; Flower or fruit shears
- A01G3/025—Secateurs; Flower or fruit shears having elongated or extended handles
- A01G3/0251—Loppers, i.e. branch cutters with two handles
Definitions
- Conventional scissors are used for flower crops and gardening, which affect several hand organs, especially tendons, due to the constant repetition of opening and closing movements of the hand when cutting the flower stalk. Due to the lack of ergonomics of these scissors, cumulative injuries occur in the hand of the operator with which the force is made in these conventional scissors.
- the object of the invention is to provide a scissor with a manual lever system with which the applied force is multiplied to make a safe and perfect cut without compromising sensitive parts of the hand.
- a scissor with a manual lever system with which the applied force is multiplied to make a safe and perfect cut without compromising sensitive parts of the hand.
- This scissors is composed of a lever adjustable to the movement of the hand to give the best ergonomics at the time of cutting and by two blades, one of them attached to a base by which the scissors are adjusted.
- the other blade is attached to a slider that contains a cylinder that allows the blade to be moved (opening or closing) by lever action.
- the operator can direct the blades according to the position of the stem and just by moving the lever forward the blades open receiving the stem to be cut after the lever is pushed back.
- the handle of the lever can make 360 degree turns allowing an ergonomic adjustment to the hand when applying force.
- Attached to the central axis of the blades is a spring that expands or contracts simultaneously after opening or closing the blade system, and its function is to momentarily support the stem of the cut flower to prevent its fall.
- the grip handle and lever handle are made of a special material that helps soften the impact of the cut and facilitate a better grip of the scissors, in addition to allowing an ergonomic adjustment to the hand.
- Figure 1 shows a plan of the general assembly of the Lever Trimmer.
- Figure 3 refers to the related force lever in Figure 1.
- Figure 4 shows the stem clamp spring related in Figure 1.
- Figure 5 refers to the Guide Piece that has a channel through which a small cylinder, related in Figure 1, slides.
- Figure 1 shows the Lever Pruning Scissors which is composed of a basic body of assembly 1 to which are attached a pair of blades 3.4 designed exclusively to allow a clean and safe cut; these blades are pierced by a screw 22 that serves as an axis and additionally holds the grip hook 29 that will hold the stem to prevent its fall; This screw is fitted by a toothed nut 20 that is attached to another gear 15 They serve as a safe to avoid allowing the blades to open and disengage due to the opening and closing movement of the system.
- the secondary blade 4 has an extension where the guide piece 5 is fixed, this piece allows the opening and closing of the secondary blade 4 while the main blade 3 remains still.
- the guide piece has a cylinder 6 that rotates through the channel of the guide piece 5 thanks to the action of the force lever stage 9.
- This stage is attached to the base body 1 by means of a screw 16.
- the force lever 8 At the other end of the stage is the force lever 8 that contains a rotating roller 10,11,12 to give position to the environment of the hand. This force lever can rotate up to 360 degrees to allow greater maneuverability to the scissors at the time of cutting.
- the operator will take the scissors with one of his hands by the grip handle 2, with the other hand he will limp the lever handle 10 and with the knife system closed the operator will operate the force lever 8 forward, allowing the blades 3 , 4 open to receive between them the stem to be cut. After the hand and wrist of the hand are in an ergonomically adjusted position, the operator will pull the force lever back with the power required according to the resistance of the stem, until the cut is complete.
Abstract
The invention relates to shears for gardening and floriculture, including a lever mechanism which fits the hand and which multiplies the force initially applied by the user, with minimum effort, maximum ergonomics and perfect cuts.
Description
TIJERA PODADORA DE PALANCA LEVER POWDER SCISSORS
Campo de la Invención:Field of the Invention:
Se refiere a una Tijera Podadora de Palanca para la Floricultura y la Jardinería.It refers to a Lever Clipper for Floriculture and Gardening.
Estado de la Técnica:State of the Art:
En los cultivos de flores y en la práctica de la jardinería se utilizan las tijeras convencionales, que afectan varios órganos de la mano especialmente los tendones, debido a la constante repetición de movimientos de apertura y cerrado de la mano al momento de realizar el corte del tallo de la flor. Debido a la falta de ergonomía de estas tijeras se presentan lesiones acumulativas en la mano del operario con la cual se hace la fuerza en estas tijeras convencionales.Conventional scissors are used for flower crops and gardening, which affect several hand organs, especially tendons, due to the constant repetition of opening and closing movements of the hand when cutting the flower stalk. Due to the lack of ergonomics of these scissors, cumulative injuries occur in the hand of the operator with which the force is made in these conventional scissors.
Descripción de la Invención:Description of the Invention:
El objeto de la invención es suministrar una tijera con un sistema manual de palanca con la cual se multiplica la fuerza aplicada para realizar un corte seguro y perfecto sin comprometer partes sensibles de la mano. Construida especialmente para labores en cultivos de flores y jardinería; compuesta por una palanca que desliza una pieza guía que permite el movimiento de las cuchillas efectuando el corte del tallo.The object of the invention is to provide a scissor with a manual lever system with which the applied force is multiplied to make a safe and perfect cut without compromising sensitive parts of the hand. Built especially for work in flower crops and gardening; composed of a lever that slides a guide piece that allows the movement of the blades by cutting the stem.
Esta tijera está compuesta por una palanca ajustable al movimiento de la mano para dar la mejor ergonomía al momento del corte y por dos cuchillas, una de ellas unida a una base por la cual se ajusta la tijera. La otra cuchilla está unida a un deslizador que contiene un cilindro que permite mover la cuchilla (abriendo o cerrando) por acción de la palanca. El operario puede dirigir las cuchillas de acuerdo a la posición del tallo y con solo mover la palanca hacia delante las cuchillas se abren recibiendo el tallo para que sea cortado luego de que la palanca sea empujada hacia atrás.
El mango de la palanca podrá realizar giros de 360 grados permitiendo un ajuste ergonómico a la mano al momento de aplicar la fuerza.This scissors is composed of a lever adjustable to the movement of the hand to give the best ergonomics at the time of cutting and by two blades, one of them attached to a base by which the scissors are adjusted. The other blade is attached to a slider that contains a cylinder that allows the blade to be moved (opening or closing) by lever action. The operator can direct the blades according to the position of the stem and just by moving the lever forward the blades open receiving the stem to be cut after the lever is pushed back. The handle of the lever can make 360 degree turns allowing an ergonomic adjustment to the hand when applying force.
Unido al eje central de las cuchillas se encuentra un resorte que se expande o se contrae simultáneamente luego de abrir o cerrar el sistema de cuchillas, y su función es la de sostener momentáneamente el tallo de la flor cortada para evitar su caída.Attached to the central axis of the blades is a spring that expands or contracts simultaneously after opening or closing the blade system, and its function is to momentarily support the stem of the cut flower to prevent its fall.
El mango de agarre y el de palanca está hecho de un material especial que ayuda a suavizar el impacto del corte y a facilitar un mejor agarre de la tijera, además de permitir un ajuste ergonómico a la mano.The grip handle and lever handle are made of a special material that helps soften the impact of the cut and facilitate a better grip of the scissors, in addition to allowing an ergonomic adjustment to the hand.
Descripción de las figuras:Description of the figures:
La Figura 1 muestra un plano del ensamble general de la Tijera Podadora de Palanca.Figure 1 shows a plan of the general assembly of the Lever Trimmer.
En la Figura 2 se puede apreciar el plano del cuerpo base de armado de la Tijera Podadora de Palanca relacionada en la Figura 1.In Figure 2 you can see the plane of the basic base body of the lever pruning shears related in Figure 1.
La Figura 3 hace referencia a la palanca de fuerza relacionada en la Figura 1.Figure 3 refers to the related force lever in Figure 1.
La Figura 4 muestra el resorte sujetador del tallo relacionado en la Figura 1.Figure 4 shows the stem clamp spring related in Figure 1.
La Figura 5 hace referencia a la Pieza Guía que posee un canal por el cual se desliza un pequeño cilindro, relacionado en la Figura 1.Figure 5 refers to the Guide Piece that has a channel through which a small cylinder, related in Figure 1, slides.
Descripción detallada de la invención con respecto a las figuras:Detailed description of the invention with respect to the figures:
En la Figura 1 se representa la Tijera Podadora de Palanca que está compuesta por un cuerpo base de armado 1 al cuál están unidas un par de cuchillas 3,4 diseñadas exclusivamente para permitir un corte limpio y seguro; a estas cuchillas las atraviesa un tornillo 22 que sirve de eje y adicionalmente sujeta el gancho de agarre 29 que sostendrá el tallo para evitar su caída; a este tornillo lo ajusta una tuerca dentada 20 que unida a otra pieza dentada 15
sirven de seguro para no permitir que las cuchillas se abran y desajusten por el movimiento de apertura y cerrado del sistema.Figure 1 shows the Lever Pruning Scissors which is composed of a basic body of assembly 1 to which are attached a pair of blades 3.4 designed exclusively to allow a clean and safe cut; these blades are pierced by a screw 22 that serves as an axis and additionally holds the grip hook 29 that will hold the stem to prevent its fall; This screw is fitted by a toothed nut 20 that is attached to another gear 15 They serve as a safe to avoid allowing the blades to open and disengage due to the opening and closing movement of the system.
La cuchilla secundaria 4 posee una extensión donde se fija la pieza guía 5, esta pieza permite la apertura y cerrado de la cuchilla secundaria 4 mientras la cuchilla principal 3 permanece quieta. La pieza guía posee un cilindro 6 que gira por el canal de la pieza guía 5 gracias a la acción de la platina palanca de fuerza 9. Esta platina está sujeta al cuerpo base de armado 1 por medio de un tornillo 16. En el otro extremo de la platina se encuentra la palanca de fuerza 8 que contiene un rodillo giratorio 10,11,12 para dar posición al entorno de la mano. Esta palanca de fuerza puede dar giros hasta de 360 grados para permitir mayor manejabilidad a la tijera al momento de corte.The secondary blade 4 has an extension where the guide piece 5 is fixed, this piece allows the opening and closing of the secondary blade 4 while the main blade 3 remains still. The guide piece has a cylinder 6 that rotates through the channel of the guide piece 5 thanks to the action of the force lever stage 9. This stage is attached to the base body 1 by means of a screw 16. At the other end of the stage is the force lever 8 that contains a rotating roller 10,11,12 to give position to the environment of the hand. This force lever can rotate up to 360 degrees to allow greater maneuverability to the scissors at the time of cutting.
El operario tomará la tijera con una de sus manos por el mango de agarre 2, con la otra mano cojera el mango de palanca 10 y encontrándose el sistema de cuchillas cerrado el operario accionará la palanca de fuerza 8 hacia delante, permitiendo que las cuchillas 3,4 se abran para recibir entre ellas el tallo a ser cortado. Luego de que la mano y la muñeca de la mano estén en posición ergonómicamente ajustada, el operario echará la palanca de fuerza hacia atrás con la potencia que se requiera de acuerdo a la resistencia del tallo, hasta efectuar el corte completo.The operator will take the scissors with one of his hands by the grip handle 2, with the other hand he will limp the lever handle 10 and with the knife system closed the operator will operate the force lever 8 forward, allowing the blades 3 , 4 open to receive between them the stem to be cut. After the hand and wrist of the hand are in an ergonomically adjusted position, the operator will pull the force lever back with the power required according to the resistance of the stem, until the cut is complete.
En la parte baja y hacia el extremo de la pieza guía 5 se encuentra un empaque amortiguador 7 que ayuda a suavizar el impacto de la tijera al momento del cierre final del sistema de cuchillas. Inmediatamente después del corte, el operario soltará el mango de palanca 10 para que con esa misma mano tome el tallo cortado mientras lo sostiene el gancho de agarre.
In the lower part and towards the end of the guide piece 5 there is a cushion gasket 7 that helps soften the impact of the scissors at the time of the final closing of the blade system. Immediately after cutting, the operator will release the lever handle 10 so that with the same hand he takes the cut stem while holding the grab.
Claims
CAPITULO REIVINDICATORÍOREIVINDICATORY CHAPTER
L- Tijera Podadora de Palanca caracterizado porque su estructura está conformada por una base de ensamble alargada que en uno de sus extremos sirve de mango de agarre y el otro soporta un par de cuchillas la cual una de ellas está sujeta a una pieza guía que permite el desplazamiento de un cilindro que accionado por una palanca efectúa la apertura y el cerrado de las cuchillas de corte, proporcionándole al operario la eliminación de esfuerzos innecesarios en las manos.L- Lever Pruning Scissors characterized in that its structure is formed by an elongated assembly base that at one of its ends serves as a grip handle and the other supports a pair of blades which one of them is attached to a guide piece that allows the displacement of a cylinder that, operated by a lever, opens and closes the cutting blades, providing the operator with the elimination of unnecessary efforts on the hands.
2.- Tijera Podadora de Palanca, de acuerdo a la reivindicación 1, caracterizado porque la pieza guía posee un canal por el cual rodará el cilindro accionado por la palanca de potencia.2. - Lever pruning shears, according to claim 1, characterized in that the guide piece has a channel through which the cylinder operated by the power lever will roll.
3.- Tijera Podadora de Palanca, de acuerdo a la reivindicación 1, caracterizado porque sobre el eje de las cuchillas se encuentra un resorte longitudinal a lo largo de las cuchillas, que se abre o cierre simultáneamente al movimiento de apertura o cerrado de las cuchillas y cuya función es la de sostener momentáneamente el tallo de la flor cortada para evitar su caída.3.- Lever pruning scissors, according to claim 1, characterized in that a longitudinal spring along the blades is located on the axis of the blades, which opens or closes simultaneously with the opening or closing movement of the blades. and whose function is to hold the stem of the cut flower momentarily to prevent its fall.
4.- Tijera Podadora de Palanca, de acuerdo a la reivindicación 1 y 2, caracterizado porque unida a la pieza guía y a la base de ensamble, se encuentra la palanca de potencia que ajusta la mano ergonómicamente a las condiciones exigidas con giros de trescientos sesenta grados sobre su eje. 4. Lever pruning shears, according to claim 1 and 2, characterized in that the power lever that ergonomically adjusts the hand to the conditions required with turns of three hundred and sixty is attached to the guide piece and assembly base. degrees on its axis.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CO06068139 | 2006-07-13 | ||
| CO06068139 | 2006-07-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2008010080A2 true WO2008010080A2 (en) | 2008-01-24 |
| WO2008010080A3 WO2008010080A3 (en) | 2008-03-20 |
Family
ID=38957148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IB2007/002158 WO2008010080A2 (en) | 2006-07-13 | 2007-07-13 | Lever pruning shears |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2008010080A2 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB158784A (en) * | 1919-12-24 | 1921-02-17 | Jose Miguel Fuenzalida | Improvements in scissors, shears and like shearing instruments, more particularly gardening or pruning shears |
| GB270796A (en) * | 1926-02-11 | 1927-05-11 | Richard John Southwood | Improvements in and relating to garden shears, pruners and the like |
| US2528816A (en) * | 1948-04-21 | 1950-11-07 | Elizabeth M Boyer | Hedge shears |
| US2994954A (en) * | 1960-03-21 | 1961-08-08 | George H Thompson | Pruning shears |
| GB996685A (en) * | 1963-04-03 | 1965-06-30 | Max Planck Gesellschaft | Shears and similar tools |
| EP0074578A1 (en) * | 1981-09-11 | 1983-03-23 | Wolf-Geräte GmbH | Gardening shears with moment leverage |
| DE4023559A1 (en) * | 1990-07-25 | 1992-01-30 | Gardena Kress & Kastner Gmbh | Garden secateurs or branch-pruner - has gearing-down element between actuating handles and shears |
| FR2825573A3 (en) * | 2001-06-12 | 2002-12-13 | Ho Cheng Garden Tools Co Ltd | Hedge clippers have one jaw attached directly to handle, other jaw having connecting arm at its base with bore through which bolt passes into slot in sliding arm at top of other handle |
-
2007
- 2007-07-13 WO PCT/IB2007/002158 patent/WO2008010080A2/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB158784A (en) * | 1919-12-24 | 1921-02-17 | Jose Miguel Fuenzalida | Improvements in scissors, shears and like shearing instruments, more particularly gardening or pruning shears |
| GB270796A (en) * | 1926-02-11 | 1927-05-11 | Richard John Southwood | Improvements in and relating to garden shears, pruners and the like |
| US2528816A (en) * | 1948-04-21 | 1950-11-07 | Elizabeth M Boyer | Hedge shears |
| US2994954A (en) * | 1960-03-21 | 1961-08-08 | George H Thompson | Pruning shears |
| GB996685A (en) * | 1963-04-03 | 1965-06-30 | Max Planck Gesellschaft | Shears and similar tools |
| EP0074578A1 (en) * | 1981-09-11 | 1983-03-23 | Wolf-Geräte GmbH | Gardening shears with moment leverage |
| DE4023559A1 (en) * | 1990-07-25 | 1992-01-30 | Gardena Kress & Kastner Gmbh | Garden secateurs or branch-pruner - has gearing-down element between actuating handles and shears |
| FR2825573A3 (en) * | 2001-06-12 | 2002-12-13 | Ho Cheng Garden Tools Co Ltd | Hedge clippers have one jaw attached directly to handle, other jaw having connecting arm at its base with bore through which bolt passes into slot in sliding arm at top of other handle |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008010080A3 (en) | 2008-03-20 |
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