ES2270658A1 - Inclination estimator for use in bicycles to indicate slope has small tube that retains bubble for indicating slope on graduated scale - Google Patents

Inclination estimator for use in bicycles to indicate slope has small tube that retains bubble for indicating slope on graduated scale Download PDF

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Publication number
ES2270658A1
ES2270658A1 ES200401172A ES200401172A ES2270658A1 ES 2270658 A1 ES2270658 A1 ES 2270658A1 ES 200401172 A ES200401172 A ES 200401172A ES 200401172 A ES200401172 A ES 200401172A ES 2270658 A1 ES2270658 A1 ES 2270658A1
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Prior art keywords
toric
arc
inclinometer
tube
bubble
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Granted
Application number
ES200401172A
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Spanish (es)
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ES2270658B1 (en
Inventor
Jose Benito Bouza Rodriguez
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Universidade de Vigo
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Universidade de Vigo
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00Measuring inclination, e.g. by clinometers, by levels
    • G01C9/18Measuring inclination, e.g. by clinometers, by levels by using liquids
    • G01C9/24Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
    • G01C9/34Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble of the tubular type, i.e. for indicating the level in one direction only

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)

Abstract

A small tube is curved in the center such that the small tube is in the form of a toric arc. The small tube is transparent, is provided with a graduated scale, is filled with a liquid, retains a bubble, and is fixed e.g. to the handlebars of a bicycle by e.g. a clip. The bubble automatically positions higher than a toric tube to indicate the slope on the graduated scale.

Description

Inclinómetro de arco tórico.Toric arc inclinometer.

La presente invención se refiere a un inclinómetro especialmente diseñado para utilizar en bicicletas y así saber la pendiente de la carretera, camino, pista, etc. sobre la que se circula, aunque también se puede utilizar con cualquier otro tipo de vehículo o aplicación. La mejora esencial que aporta con respecto a los existentes es su fácil fabricación y en consecuencia su reducido coste, por lo que es asequible para cualquier tipo de ciclista.The present invention relates to a inclinometer specially designed for use on bicycles and so know the slope of the road, road, track, etc. on the one that circulates, although it can also be used with any Other type of vehicle or application. The essential improvement it brings with respect to the existing ones it is easy to manufacture and in consequently its reduced cost, so it is affordable for Any type of cyclist.

Antecedentes de la invenciónBackground of the invention

Existen diversos instrumentos para saber desde el vehículo las pendientes de las carreteras o pistas sobre las que se va. Cada tipo se basa en una tecnología distinta.There are several instruments to know from the vehicle the slopes of the roads or tracks on which it goes. Each type is based on a different technology.

El instrumento de nuestra invención se basa en un esquema nuevo: burbuja en un tubo con forma de arco tórico, que por su facilidad de fabricación resulta más barato que los existentes y lo puede comprar cualquier tipo de ciclista.The instrument of our invention is based on a new scheme: bubble in a toric-shaped tube, which due to its ease of manufacture it is cheaper than existing and can be purchased by any type of cyclist.

Descripción de la invenciónDescription of the invention

Instrumento para medir la pendiente con respecto al plano horizontal, especialmente diseñado para usar en bicicletas, pero se puede usar en cualquier tipo de vehículo, o para cualquier otro tipo de aplicación donde se requiera saber la pendiente de un plano o
línea.
Instrument to measure the slope with respect to the horizontal plane, specially designed for use on bicycles, but can be used in any type of vehicle, or for any other type of application where it is required to know the slope of a plane or
line.

Consiste en un pequeño tubo con forma de arco tórico, o sea, un tubo con su eje central curvado, transparente al menos en la parte superior del mismo donde tiene una escala de pendientes graduada, relleno de un líquido, con una burbuja (de gas, de líquido menos denso o pequeño flotador), y sujeto al manillar (u otra parte) de la bicicleta (u otro vehículo o aplicación) a través de un medio de sujeción (abrazadera).It consists of a small arc-shaped tube toric, that is, a tube with its central axis curved, transparent to the less on top of it where it has a scale of graduated earrings, filled with a liquid, with a bubble (of gas, of less dense liquid or small float), and subject to handlebar (or other part) of the bicycle (or other vehicle or application) through a clamping means (clamp).

La burbuja, al moverse el vehículo, siempre se coloca automáticamente en la parte más alta del tubo tórico, por lo que ésta nos da directamente la pendiente sobre la escala graduada del tubo.The bubble, when moving the vehicle, always automatically placed on the highest part of the toric tube, so that this gives us the slope directly on the graduated scale of the tube.

Nota Aclaratoria: Una superficie tórica, en su acepción mas general, es una superficie de revolución engendrada por un recinto cerrado (circunferencia, elipse, cuadrado, rectángulo, triángulo, rombo, ...) cuando gira alrededor de un eje que no pasa por su centro; de aquí la denominación de "arco tórico" para hacer referencia a una porción de este tipo de superficie. Las paredes de un tubo curvado son una superficie de este tipo. Explanatory Note : A toric surface, in its most general sense, is a surface of revolution generated by a closed enclosure (circumference, ellipse, square, rectangle, triangle, rhombus, ...) when it rotates around an axis that does not pass through its center; hence the name "toric arc" to refer to a portion of this type of surface. The walls of a curved tube are such a surface.

Breve descripción de los dibujosBrief description of the drawings

Para una mejor comprensión de esta memoria, se acompañan unos dibujos en los que, tan sólo a título de ejemplo, se representa un caso práctico de realización del inclinómetro.For a better understanding of this memory, it accompany some drawings in which, by way of example only, It represents a practical case of the inclinometer.

La figura 1 es una vista en perspectiva del inclinómetro según la invención.Figure 1 is a perspective view of the inclinometer according to the invention.

Las figuras 2 y 3 son dos vistas diédricas del inclinómetro. La figura 2 se corresponde con la vista en alzado lateral y la figura 3 con la vista en planta vista desde arriba.Figures 2 and 3 are two dihedral views of the inclinometer Figure 2 corresponds to the elevation view side and figure 3 with the plan view seen from above.

La figura 4 es una vista en perspectiva del inclinómetro inventado cuando el vehículo se encuentra en una cuesta.Figure 4 is a perspective view of the invented inclinometer when the vehicle is in a cost.

Las figuras 5 y 6 son dos vistas del inclinómetro, la figura 5 es la vista en alzado lateral y la figura 6 la vista en planta desde arriba, cuando el vehículo se encuentra en una cuesta.Figures 5 and 6 are two views of the inclinometer, figure 5 is the side elevation view and figure 6 the plan view from above, when the vehicle is On a slope.

Los dibujos están aproximadamente a escala real 1:1.The drawings are approximately real scale 1: 1.

Descripción de una realización preferenteDescription of a preferred embodiment

En una realización preferente el inclinómetro de arco tórico en cuestión consta de un tubo curvado (3) el cual se rellena de un líquido inerte coloreado. Las paredes de este tubo (3) deben ser transparentes al menos en la parte superior donde está la escala de pendientes graduada (1). Las inscripciones (normalmente en %) para graduar la escala de pendientes (1) se pueden hacer empíricamente, o sea, poner el inclinómetro ante distintas pendientes conocidas y marcar la posición de la burbuja para cada pendiente; o bien, por deducción geométrica obteniendo los ángulos con que deben verse las divisiones de la escala desde el centro del arco del tubo, tendiendo en cuenta el radio de curvatura.In a preferred embodiment the inclinometer of toric arc in question consists of a curved tube (3) which filled with a colored inert liquid. The walls of this tube (3) must be transparent at least at the top where there is the graduated slope scale (1). The inscriptions (usually in%) to graduate the scale of slopes (1) you they can do empirically, that is, put the inclinometer before different known slopes and mark the bubble position for each earring; or, by geometric deduction obtaining the angles with which the divisions of the scale should be seen from the center of the arc of the tube, taking into account the radius of curvature.

Para formar la burbuja (2), se inyecta en el tubo (3) una pequeña cantidad de aire o gas inerte, o de un líquido menos denso que el de relleno del tubo, preferentemente de un color que contraste con el color del líquido de relleno, para facilitar la lectura de la pendiente que la burbuja (2) indicará sobre la escala graduada (1). En una modalidad alternativa la burbuja (2) se materializa con un pequeño flotador, de un color muy vistoso y de forma variable (esfera, elipsoide, cilindro, ...) en función de la forma de la sección transversal (circular, elíptica, cuadrangular, rectangular, triangular, rómbica, ...) elegida para el tubo curvado (3).To form the bubble (2), it is injected into the tube (3) a small amount of air or inert gas, or a liquid less dense than the filling of the tube, preferably of a color which contrast with the color of the filling liquid, to facilitate the slope reading that the bubble (2) will indicate on the graduated scale (1). In an alternative mode the bubble (2) is it materializes with a small float, a very colorful color and variable shape (sphere, ellipsoid, cylinder, ...) depending on the cross section shape (circular, elliptical, quadrangular, rectangular, triangular, rhombic, ...) chosen for the curved tube (3).

En la realización preferente la abrazadera (4) sujeta el inclinómetro al tubo del manillar de la bicicleta. Ésta va unida al centro del tubo curvado (3) por un elemento intermedio, tal y como se muestra en las figuras. Para otro vehículo o aplicación habría que cambiar este tipo de sujeción por otro a medida para cada caso.In the preferred embodiment the clamp (4) Attach the inclinometer to the bicycle's handlebar tube. This is connected to the center of the curved tube (3) by an intermediate element, as shown in the figures. For another vehicle or application would have to change this type of attachment for another to measure for each case.

En otra realización alternativa las paredes de la parte superior del tubo (3) se hacen con forma de lupa cilíndrica, con su eje (curvado) paralelo al eje curvado del tubo (3), para aumentar la visibilidad de la escala de pendientes (1), de una manera integrada y sin aumentar demasiado el peso del inclinómetro. Otra variante para aumentar la visibilidad, es sujetar una lupa cilíndrica justo encima del tubo (3) a lo largo de la escala de pendientes (1).In another alternative embodiment the walls of The upper part of the tube (3) is made with a magnifying glass cylindrical, with its (curved) axis parallel to the curved axis of the tube (3), to increase the visibility of the slope scale (1), of an integrated way and without increasing the weight of the inclinometer Another variant to increase visibility is hold a cylindrical magnifier just above the tube (3) along the scale of slopes (1).

Antes de la fabricación del tubo (3), se debe calcular el radio de curvatura del eje de este tubo (3), y ha de tenerse en cuenta que este radio dependerá del intervalo de pendientes que se quiera medir. Como se puede demostrar geométricamente, a mayor radio de curvatura del tubo (3) menor intervalo de pendientes se puede tener en la escala graduada (1) sin que haya que aumentar demasiado la longitud del tubo, pero se consigue mayor precisión en la medición, ya que la burbuja (2) detecta pequeños cambios en la pendiente del terreno.Before the tube (3) is manufactured, it must be calculate the radius of curvature of the axis of this tube (3), and must keep in mind that this radius will depend on the interval of pending to be measured. As can be demonstrated geometrically, the greater the radius of curvature of the smaller tube (3) range of slopes can be had on the graduated scale (1) without having to increase the length of the tube too much, but achieve greater measurement accuracy, since the bubble (2) detects small changes in the slope of the terrain.

Para el caso de la bicicleta, las carreteras o pistas van a tener una pendiente comprendida aproximadamente entre 0% y 13%, que por cálculos sale un radio de curvatura elevado (poca curvatura) para el eje del tubo (3). Esto significa que con un inclinómetro de tamaño pequeño se mide todo el intervalo con una precisión adecuada.In the case of the bicycle, roads or tracks are going to have a slope between approximately 0% and 13%, which calculates a high radius of curvature (little curvature) for the axis of the tube (3). This means that with a small inclinometer the entire interval is measured with a adequate accuracy

En otra realización opcional del inclinómetro de arco tórico, el tubo (3) tiene curvatura variable, para así tener más precisión en los intervalos de pendientes más comunes, sin aumentar demasiado la longitud del tubo. Como con un mayor radio de curvatura del tubo (3) se consigue mayor precisión pero también se necesita aumentar la longitud del mismo, con la curvatura variable se consigue el óptimo.In another optional embodiment of the inclinometer of toric arch, the tube (3) has variable curvature, in order to have more precision in the most common slope intervals, without increase the length of the tube too much. As with a larger radius of tube curvature (3) achieves greater precision but also you need to increase the length of it, with the variable curvature the optimum is achieved.

Todos los materiales deben ser ligeros, así incluso la abrazadera (4) es conveniente que sea de plástico o material análogo.All materials should be light as well. even the clamp (4) is convenient that it is made of plastic or analog material.

Claims (14)

1. Inclinómetro de arco tórico para vehículos caracterizado por tener un pequeño tubo (3) con su eje central y sus paredes laterales curvadas, cerrado por los extremos, transparente al menos en la parte superior del mismo, con una escala de pendientes graduada (1), relleno de un líquido, con una burbuja (2), y medios de sujeción al vehículo.1. Toric arc inclinometer for vehicles characterized by having a small tube (3) with its central axis and its curved side walls, closed at the ends, transparent at least at the top of it, with a graduated slope scale (1 ), filled with a liquid, with a bubble (2), and fastening means to the vehicle. 2. Inclinómetro de arco tórico, según la reivindicación 1, caracterizado porque el líquido de relleno está coloreado y la burbuja (2) es incolora.2. Toric arc inclinometer according to claim 1, characterized in that the filling liquid is colored and the bubble (2) is colorless. 3. Inclinómetro de arco tórico, según la reivindicación 1, caracterizado porque el líquido de relleno es incoloro y la burbuja (2) está coloreada con un color llamativo (muy vistoso), para facilitar la lectura al usuario.3. Toric arc inclinometer according to claim 1, characterized in that the filling liquid is colorless and the bubble (2) is colored with a striking color (very colorful), to facilitate reading to the user. 4. Inclinómetro de arco tórico, según la reivindicación 1, caracterizado porque tanto el líquido de relleno como la burbuja (2) están ambos coloreados, pero con dos colores distintos que contrasten suficientemente entre sí, para facilitar la lectura al usuario.4. Toric arc inclinometer according to claim 1, characterized in that both the filling liquid and the bubble (2) are both colored, but with two different colors that contrast sufficiently with each other, to facilitate reading to the user. 5. Inclinómetro de arco tórico, de acuerdo con cualquiera de las reivindicaciones anteriores, caracterizado porque el tubo (3) tiene curvatura variable, para así tener más precisión en los intervalos de pendientes más comunes.5. Toric arc inclinometer, according to any of the preceding claims, characterized in that the tube (3) has variable curvature, so as to have more precision in the most common slope ranges. 6. Inclinómetro de arco tórico, de acuerdo con cualquiera de las reivindicaciones anteriores, caracterizado porque las paredes del tubo (3) son transparentes en su totalidad.6. Toric arc inclinometer according to any of the preceding claims, characterized in that the walls of the tube (3) are completely transparent. 7. Inclinómetro de arco tórico, de acuerdo con cualquiera de las reivindicaciones anteriores, caracterizado porque la burbuja (2) se materializa en un gas.7. Toric arc inclinometer according to any of the preceding claims, characterized in that the bubble (2) is materialized in a gas. 8. Inclinómetro de arco tórico, de acuerdo con cualquiera de las reivindicaciones 1 a 6, caracterizado porque la burbuja (2) se materializa en un líquido menos denso que el líquido de relleno.8. Toric arc inclinometer according to any one of claims 1 to 6, characterized in that the bubble (2) materializes in a less dense liquid than the filling liquid. 9. Inclinómetro de arco tórico, de acuerdo con cualquiera de las reivindicaciones 1 a 6, caracterizado porque la burbuja (2) se materialice en un pequeño flotador, de un color muy vistoso y de forma variable en función de la forma de la sección elegida para el tubo curvado (3).9. Toric arc inclinometer according to any one of claims 1 to 6, characterized in that the bubble (2) materializes in a small float, of a very colorful color and of variable shape depending on the shape of the section chosen for the curved tube (3). 10. Inclinómetro de arco tórico, de acuerdo con cualquiera de las reivindicaciones anteriores, caracterizado porque el líquido de relleno es un líquido pesado (ejemplo: mercurio), para reducir las vibraciones de éste.10. Toric arc inclinometer, according to any of the preceding claims, characterized in that the filler liquid is a heavy liquid (example: mercury), to reduce its vibrations. 11. Inclinómetro de arco tórico, de acuerdo con cualquiera de las reivindicaciones anteriores, caracterizado por tener las paredes de la parte superior del tubo (3) con forma de lupa cilíndrica, con su eje (curvado) paralelo al eje curvado del tubo (3), para aumentar la visibilidad de la escala de pendientes (1), de una manera integrada y sin aumentar demasiado el peso del inclinómetro.11. Toric arc inclinometer, according to any of the preceding claims, characterized in that the walls of the upper part of the tube (3) are shaped like a cylindrical loupe, with its axis (curved) parallel to the curved axis of the tube (3 ), to increase the visibility of the slope scale (1), in an integrated manner and without increasing the weight of the inclinometer too much. 12. Inclinómetro de arco tórico, de acuerdo con cualquiera de las reivindicaciones 1 a 10, caracterizado por tener una lupa cilíndrica justo encima del tubo (3) a lo largo de la escala de pendientes (1).12. Toric arc inclinometer according to any one of claims 1 to 10, characterized by having a cylindrical magnifier just above the tube (3) along the scale of slopes (1). 13. Inclinómetro de arco tórico, de acuerdo con cualquiera de las reivindicaciones anteriores, caracterizado porque los medios de sujeción al vehículo comprenden una abrazadera.13. Toric arc inclinometer according to any of the preceding claims, characterized in that the means for securing the vehicle comprise a clamp. 14. Inclinómetro de arco tórico, de acuerdo con la reivindicación 13, caracterizado porque el vehículo es una bicicleta y la abrazadera se acopla al manillar (u otra parte) de dicha bicicleta.14. Toric arc inclinometer according to claim 13, characterized in that the vehicle is a bicycle and the clamp is coupled to the handlebar (or other part) of said bicycle.
ES200401172A 2004-05-14 2004-05-14 INCLINOMETER OF ARCO TORICO. Expired - Fee Related ES2270658B1 (en)

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ES200401172A ES2270658B1 (en) 2004-05-14 2004-05-14 INCLINOMETER OF ARCO TORICO.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154903A (en) * 2014-08-26 2014-11-19 中国地质大学(武汉) Bicycle gradiometer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1730109A (en) * 1924-08-28 1929-10-01 Elbridge F Bacon Level
GB629518A (en) * 1946-11-13 1949-09-21 Svenska Ackumulator Ab Improvements in levels
FR2472172A1 (en) * 1979-12-18 1981-06-26 Foueillassar Jean Marie Inclinometer for attachment to bicycle frame - has liq. filled tube containing float movable against scale and clamps ensuring plane of tube coincides with that of incline
GB2206693A (en) * 1987-06-24 1989-01-11 Chong Pau Chen Leveling instruments and methods for their manufacture
DE4337245A1 (en) * 1993-10-30 1995-05-04 Stephan Killian Inclination meter for bicycles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1730109A (en) * 1924-08-28 1929-10-01 Elbridge F Bacon Level
GB629518A (en) * 1946-11-13 1949-09-21 Svenska Ackumulator Ab Improvements in levels
FR2472172A1 (en) * 1979-12-18 1981-06-26 Foueillassar Jean Marie Inclinometer for attachment to bicycle frame - has liq. filled tube containing float movable against scale and clamps ensuring plane of tube coincides with that of incline
GB2206693A (en) * 1987-06-24 1989-01-11 Chong Pau Chen Leveling instruments and methods for their manufacture
DE4337245A1 (en) * 1993-10-30 1995-05-04 Stephan Killian Inclination meter for bicycles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154903A (en) * 2014-08-26 2014-11-19 中国地质大学(武汉) Bicycle gradiometer

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