ES2465239B1

ES2465239B1 - Table scissors

Info

Publication number: ES2465239B1
Application number: ES201201237A
Authority: ES
Inventors: Fernando TRUEBA CASTILLO
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-05
Filing date: 2012-12-05
Publication date: 2015-03-24
Anticipated expiration: 2032-12-05
Also published as: ES2465239A1

Abstract

La invención de la tijera de mesa se refiere a un instrumento para uso con una mano y fuerza motriz sólo humana que comprende dos piezas principales, con sendas hojas a manera de cuchillas de un solo filo, con un solo eje que las traba; una de ellas para apoyo y deslizamiento sobre superficies planas y la otra puede girar alrededor del eje que las traba, para cortar, al cerrarla, lo que se pone entre ellas.#La tijera de mesa sirve para ser utilizada sobre cualquier superficie plana permitiendo que una de sus piezas principales, actúe como base apoyando su longitud en dicha superficie y se deslice en contacto mientras se corta. La tijera de mesa facilita el corte continuo de superficies planas (papel, tela, ... ) sobre superficies planas (mesa, suelo, pared, techo, tableros, ... ), ambas cada vez más frecuentes, y la continuidad y precisión del corte recto.The invention of the "table scissors" refers to an instrument for use with a hand and only human driving force comprising two main parts, with two single-blade blades, with a single axis that locks them; one of them for support and sliding on flat surfaces and the other can rotate around the axis that locks them, to cut, when closed, what is put between them. # The "table scissors" is used to be used on any flat surface allowing one of its main pieces, to act as a base supporting its length on said surface and slide in contact while cutting. The "table scissors" facilitates the continuous cutting of flat surfaces (paper, fabric, ...) on flat surfaces (table, floor, wall, ceiling, boards, ...), both increasingly frequent, and continuity and precision of the straight cut.

Description

Antecedentes de la invención Background of the invention

5 Ya en la Edad del Bronce aparecen tijeras de muelle de una sola pieza con dos filos, en forma de U, utilizadas para cortar pieles y también el cabello. Los griegos y los romanos las empleaban para los más variados usos: corte de pelo, esquilado de animales, poda de árboles, corte de tejidos. 5 Already in the Bronze Age, single-piece spring scissors with two U-shaped edges appear, used to cut skins and also hair. The Greeks and Romans used them for the most varied uses: haircut, animal shearing, tree pruning, tissue cutting.

Estas tijeras o '"esquileos" se caracterizaban por ser de una sola pieza de material capaz de flexar y cortar al presionar cerrando la mano. Existen algunas palentes de modelos de utilidad recientes como la 10 U0275453 y la UOI87778. These scissors or '"shears" were characterized by being of a single piece of material capable of flexing and cutting when pressed by closing the hand. There are some people of recent utility models such as 10 U0275453 and UOI87778.

Aunque los "esquileos"-tijera cruz-aplanados en aspa con un pivote de centro como herramientas se conociesen con anterioridad, la forma de las tijeras antiguas se mantuvo en la Edad Media hasta el siglo XIV, cuando se utilizaron tal como las conocemos hoy, en forma de aspa y con un pasador entre ambos brazos. Although the "shears" - cross-flattened scissors with a center pivot as tools were previously known, the shape of the old scissors remained in the Middle Ages until the fourteenth century, when they were used as we know them today, in the form of a blade and with a pin between both arms.

15 En el siglo XVI1 se generalizó el uso de las tijeras y empezó a emplearse el acero en su construcción. A finales del XIX la mecanización simplificó los estilos de su construcción y las tijeras pasaron a ser similares a las de hoy. 15 In the 16th century, the use of scissors became widespread and steel began to be used in its construction. At the end of the nineteenth century, mechanization simplified the styles of its construction and the scissors became similar to those of today.

La tijera actual, a diferencia de los antiguos "esquileos", es un instrumento compuesto por dos piezas principales en aspa con hojas de acero, a manera de cuchillas de un solo filo, y por lo común con un ojo The current scissors, unlike the old "shears", is an instrument composed of two main pieces in blade with steel blades, as a single-edged blade, and usually with one eye

20 para meter los dedos al remate de cada mango, las cuales pueden girar alrededor de un eje que las traba y que se cruzan para cortar, al cerrarlas, lo que se pone entre ellas. El corte se produce respondiendo a los empujes opuestos y simultáneos ejercidos por el dedo pulgar y por el dedo índice sólo o con otros. Existen multitud de patentes y modelos de utilidad de tijeras de este tipo. Con el tiempo se incorporaron tijeras eléctricas, l1idráulicas, de aire comprimido, etc., que a pesar de 20 to put the fingers at the end of each handle, which can rotate around an axis that locks them and intersect to cut, when closed, what is put between them. The cut is produced in response to the opposite and simultaneous thrusts exerted by the thumb and index finger alone or with others. There are many patents and utility models of scissors of this type. Over time, electric, hydraulic, compressed air scissors, etc. were incorporated, which despite

25 permitir el corte con todo tipo de formas de tijeras. no son objeto de la presente patente. Tampoco lo son las cizallas. generalmente fijas, ni las tijeras de poda normales o a distancia u otras tijeras de uso muy específi co. 25 allow cutting with all kinds of scissors shapes. They are not the subject of this patent. Neither are shears. generally fixed, nor normal or remote pruning shears or other scissors of very specific use.

En la actualidad, al generalizarse el trabajo sobre superficies planas, los diseños de tijeras para uso con una mano con fuerza motriz sólo humana tienden a aplanar la base de uno de sus ojos para propiciar 30 su deslizamiento sobre dichas superficies. Aún así, al mantenerse el cruce de sus dos piezas principales en aspa durante la ejecución de la función de corte, no se consigue el perfecto deslizamiento de la tijera. La patente E90 I 22045 justifica la necesidad de una invención que perfeccione dicho deslizamiento. pero basa su resolución en un complicado mecanismo de articulación de cuatro piezas y cuatro ejes. La tijera de mesa gracias a la actual precisión en la fabricación de las hojas y los diseños ergonómicos con At present, when work on flat surfaces is generalized, scissors designs for use with a hand with only human motive force tend to flatten the base of one of their eyes to propitiate their sliding on said surfaces. Even so, by maintaining the crossing of its two main pieces in a blade during the execution of the cutting function, the perfect sliding of the scissors is not achieved. The E90 I 22045 patent justifies the need for an invention that perfects said sliding. but based its resolution on a complicated mechanism of articulation of four pieces and four axes. The table scissors thanks to the current precision in the manufacture of the sheets and the ergonomic designs with

35 materiales que garantizan la perfecta adaptación al nuevo movimiento natural de la mano de la invención propuesta. permite el corte fácil de superficies planas de dureza no excesiva (papel, tela •... ) sin necesidad de complicar el mecanismo. 35 materials that guarantee the perfect adaptation to the new natural movement by the hand of the proposed invention. It allows the easy cutting of flat surfaces of not excessive hardness (paper, cloth • ...) without complicating the mechanism.

La tijera de mesa mejora la utilización del instrumento sobre cualquier superficie plana, permitiendo que una de sus piezas principales: la hoja e incluso su mango, actúe como base apoyando toda su 40 longitud en dicha superficie y se deslice en paralelo y en continuo contacto durante toda la ejecución de The table scissors improve the use of the instrument on any flat surface, allowing one of its main parts: the blade and even its handle, to act as a base supporting its entire length on said surface and slide in parallel and in continuous contact during all the execution of

su función de corte, facilitándose as! la continuidad en la ejecución y la precisión en el corte recto. El its cutting function, making it easier! continuity in execution and precision in straight cutting. He

empuje necesario para cerrar o abrir el ángulo formado por las dos hojas y producir el corte se realiza necessary push to close or open the angle formed by the two sheets and produce the cut is made

generalmente sólo con el movimienlO del dedo pulgar mientras se desliza la mano sobre la superficie. usually only with the movement of the thumb while sliding the hand over the surface.

5 5: Por lo que respecta a las definiciones de tijera que encontramos en los diccionarios actuales se As regards the scissors definitions that we find in current dictionaries,

refieren comúnmente a un instrumento con dos hojas en aspa, que al cerrarlas (las dos) cortan, que se commonly refer to an instrument with two blades, which when cut (the two) cut, which

cruzan o que las dos giran alrededor de un eje mientras funcionan. they cross or that the two revolve around an axis while they work.

-Diccionario de la lengua espa~ola. Vigésima segunda edición -Spanish language dictionary. Twenty Second Edition

10 10: tijera. (De tisera). 1. f. Instrumento compuesto de dos hojas de acero, a manera de cuchillas de un solo scissors. (Of tisera). 1. f. Instrument composed of two steel blades, as a single blade

filo, y por lo común con un ojo para meter los dedo s al remate de cada mango, las cuales pueden 2irar edge, and usually with an eye to put the fingers s at the end of each handle, which can rotate

alrededor de un eje que las traba, para cortar, al cerrarlas, lo que se pone entre ellas. U. rn. en pi. con around an axis that locks them, to cut, when closed, what is put between them. U. rn. in pi. with

el mismo significado que en sing. 2. f. Cosa comp1uesta, como la tijera, de dos piezas cruzadas que the same meaning as in sing. 2. f. A compound thing, like the scissors, of two crossed pieces that

giran alrededor de un eje. ( ... ) S. f. Aspa que sirve ... they revolve around an axis. (...) S. f. Blade that serves ...

15 fifteen: -Diccionario panhispánico de dudas. 2.005. Real Academia Española -Pan-Hispanic Dictionary of Doubts. 2005 Royal Spanish Academy

tijera. 1. ' Instrumenlo para cortar fonnado por dos hojas de acero cruzadas' scissors. 1. 'Instrument it to cut fonnado by two crossed steel sheets'

2. de tijera. ' [Objeto] compuesto por dos piezas articuladas en rorma de tijera ' 2. Scissor. '[Object] composed of two articulated pieces in scissor shape'

-Diccionario EL PAíS.com. Diccionario Castellano -DICTIONAL EL PAíS.com. Spanish dictionary

Tijera. Del ant. tisera, y éste del Latín [rerramenta] tonsoria 1. Sustantivo remenino. Utensilio para Scissors. Of the ant. Tisera, and this one from Latin [rerramenta] tonsoria 1. Remenino noun. Utensil for

20 twenty: cortar fonnado por dos hojas de un solo filo unida$ en rorma de aspa por un eje que permite que se cut fonted by two single-edged blades $ in blade shape by an axis that allows it to

muevan. move

-Diccionarios.com con la garantía VOX LAROUSSE -Dictionaries.com with the VOX LAROUSSE guarantee

tijera. 1. Nombre-femenino. Instrumento para cortar, en especial papel o tela, que consiste en dos hojas scissors. 1. Female-name. Cutting instrument, especially paper or cloth, consisting of two sheets

metálicas, con filo por uno de sus lados, generalmente acabadas en punta en uno de sus extremos y con metallic, with edge by one of its sides, generally finished in tip in one of its ends and with

25 25: un ojo en el otro extremo para introducir 105 dedos; las hojas se cruzan rormando un aspa por un eje one eye at the other end to introduce 105 fingers; the leaves intersect rimming a blade on an axis

central, que, cuando gira, hace que se superpongan o se separen cortando el objeto: tijeras de central, which, when rotated, causes them to overlap or separate by cutting the object: scissors

cocina; tijeras de podar. kitchen; pruning shears.

-Wikipedia. La enciclopedia libre -Wikipedia. The free encyclopedia

Tijera. Una tijera, denominada frecuentemente en su plural tijeras,[l] es una herramienta manual que Scissors. A scissor, often referred to in its plural scissors, [l] is a hand tool that

30 30: sirve para cortar. Está fonnada por dos cuchillas de acero que giran sobre un eje común respe<:lo al It serves to cut. It is shaped by two steel blades that rotate on a common axis respect <: lo al

cual se sitúan los filos de corte a un lado y el mango en el lado opuesto. El mango suele tener which are the cutting edges on one side and the handle on the opposite side. The handle usually has

agujeros para introducir los dedos o un muelle para facilitar la apertura. El mecanismo fonnado es un holes to insert fingers or a spring to facilitate opening. The plumbing mechanism is a

ejemplo típico de palanca de primer orden, en la cual el fulcro se sitúa entre la resistencia (esfuerzo typical example of first-order lever, in which the fulcrum is placed between the resistance (effort

resistente) y la potencia (esfuerzo motri z). resistant) and power (motri z effort).

3S 3S

La tijera de mesa sirve para ser utilizada sobre cualquier superficie plana pennitiendo que una de sus The table scissors can be used on any flat surface, allowing one of its

piezas principales: la hoja e incluso su mango, actúe como base apoyando toda su longitud en dicha main parts: the blade and even its handle, act as a base supporting its entire length in said

superficie y se deslice en paralelo y en continuo ¡;ontacto durante toda la ejecución de su función de surface and slide in parallel and in continuous ¡; ontact throughout the execution of its function of

corte, ya que corta sin que su movimiento se realict: cerrando simultáneamente hojas, o con dos hojas en cut, since it cuts without its movement being realized: closing leaves simultaneously, or with two leaves in

40 40: aspa, o que se cruzan o que las dos giran alrededor de un eje mientras ejecutan su función. Sus hojas no blade, or that they cross or that the two revolve around an axis while performing their function. His leaves not

foonan la figura de una u como en los antiguos "esquileos" ni de una x, como en las tijeras actuales, sino la de una y tumbada. De ésta manera, además de realizar las funciones de una tijera, la "tijera de mesa" facilita sobre todo el corte continuo de supe~ficies planas (papel, tela, ... ) sobre superficies planas (mesa, suelo, tableros, ... ), ambas cada vez mas frecuentes en la actualidad, y también facilita la continuidad y la precisión en la ejecución del cada vez mas utilizado corte recto. they foonan the figure of a u as in the old "shears" nor of an x, as in the current scissors, but that of one and lying down. In this way, in addition to performing the functions of a scissor, the "table scissors" facilitates above all the continuous cutting of flat surfaces (paper, fabric, ...) on flat surfaces (table, floor, boards,. ..), both more and more frequent today, and also facilitates continuity and precision in the execution of the increasingly used straight cut.

Descripción Description

La invención de la tijera de mesa se refiere a un instrumento para uso con una mano y fuerza motriz sólo humana que comprende dos piezas principales (7,8), con sendas hojas (1,2) a manera de cuchillas de un solo filo. con un solo eje (3) que las traba; una de ellas (7) para apoyo y deslizamiento sobre superficies planas (4) (mesa, suelo, pared, techo, ... ) y la otra (8) puede girar alrededor del eje (3) que las traba, para cortar, al cerrarla, lo que se pone entre ellas. The invention of the table scissors refers to an instrument for use with a hand and only human motive force comprising two main parts (7.8), with two blades (1,2) in the form of single-edged blades. with a single axis (3) that locks them; one of them (7) for support and sliding on flat surfaces (4) (table, floor, wall, ceiling, ...) and the other (8) can rotate around the axis (3) that locks them, to cut, when closed, what is put between them.

En la pieza principal (7) que apoya sobre la superficie plana (4), y por lo común con un ojo para meter uno o varios dedos al remate del mango (empuñadura, dispositivo para asir el instrumento ...) (5) que facilite el empuje horizonlal para el deslizamiento y el empuje vertical de estabilización, la hoja (1), e incluso si se quiere su mango (5), actúan como base, pudiendo apoyar toda su longitud en dicha superficie (4), y se deslizan en paralelo y en continuo contacto durante toda la ejecución de su función de corte. In the main piece (7) that rests on the flat surface (4), and usually with an eye to put one or more fingers at the end of the handle (handle, device to grab the instrument ...) (5) that facilitate the horizontal thrust for sliding and the vertical stabilization thrust, the blade (1), and even if you want its handle (5), act as a base, being able to support its entire length on said surface (4), and slide in parallel and in continuous contact throughout the execution of its cutting function.

El empuje sobre la hoja que gira (2) alrededor del eje (3) que las traba, y por lo común con algún elemento (ojo para meter el dedo, tecla de presión, muelles ... ) (6), que facilite realizar el empuje necesario para abrir o cerrar (para cortar) el ángulo foonado por las dos hojas, puede realizarse entre la punta y el eje como palanca de tercera clase, (Figura. 3) o como palanca de primera clase (Figura 4). The push on the rotating blade (2) around the axis (3) that locks them, and usually with some element (eye to put the finger, pressure key, springs ...) (6), which makes it easy to perform the necessary push to open or close (to cut) the angle founded by the two blades, can be made between the tip and the shaft as a third-class lever, (Figure. 3) or as a first-class lever (Figure 4).

Claims

1.-Table scissors to preferably cut flat surfaces with a straight cut on any flat surface, characterized in that being for use with one hand and only human driving force 5 comprises two main pieces, unique indispensable for its operation, (which contain two sheets way of single-edged blades) with a single axis that locks them, which are not crossed (defined as crossed, in the space of two dimensions of the longitudinal elevation of the scissors. when pane of each of the projected main parts is it places on each side of the space delimited by the other) during the execution of its cutting function, nor are they arranged in the form of a blade (it is defined in a cross when all pieces intersect according to the previous definition, forming any angle between them and between their breads); one of said main parts only moves and does not rotate around the axis during the execution of the cutting function and act alone during this time, as a base for support and sliding on a flat surface, sliding parallel to it and in continuous contact while the distance between the surface and the single axis remains constant; only one of said main parts revolves around the axis

15 During the execution of the cutting and only function on the ja, the necessary thrust is made to open or close the angle formed by the two blades.

The table scissors are characterized in that only the main part that rotates around the axis during the execution of the cutting function, contains some element or pane in which the necessary thrust is executed to close or open the angle formed by the two sheets , (eye to stick finger, key

20 of pressure. ergonomic thimble, ...).

The table scissors are characterized in that the necessary thrust to open or close the angle formed by the two blades during the execution of the cone function is carried out comfortably with a single finger, usually the thumb. and because e [necessary thrust for support and sliding on flat surfaces "is carried out during the execution of the cone function independently of the thrust

25 necessary to close or open the angle formed by the two sheets using any combination of fingers of the hand of use. The table scissors, is characterized in that [a main piece that does not rotate around the axis during the execution of the cone function, acts alone during the execution of the cone function as a base for support and sliding on a flat surface, optionally in the whole development of its length (of

30 all its parts and on both sides of the shaft) or in pane, allowing in both cases its operation. 2.-The table scissors, according to claim 1, is characterized in that the blade contained in the main piece that does not rotate around the axis during the execution of the cutting function, acts during the execution of its cutting function as base for support and sliding on a flat surface, always allowing its operation, optionally in its entire length or in pane.

3. The table scissors according to claim 1, 2, is characterized in that the main piece that does not rotate around the axis during the execution of the cone function varies its sections and / or incorporates elements, to improve its performance as base for support and sliding on flat surfaces.

4.-The table scissors, according to claim 1, 2, 3, is characterized in that the thrust necessary to open or close the angle formed by the two sheets that is made over: the pit: The main one that rotates 40 around the axis during the execution of the cutting function, it is performed between the tip and the axis acting

as a third class lever or on the opposite side of the tip and the shaft as a first class lever.