ES2392716B1

ES2392716B1 - Chair rolling device

Info

Publication number: ES2392716B1
Application number: ES201100629A
Authority: ES
Inventors: Alberto ESQUINAS LÓPEZ
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-30
Filing date: 2011-05-30
Publication date: 2013-10-18
Anticipated expiration: 2031-05-30
Also published as: WO2012164133A2; ES2392716A1; WO2012164133A3

Abstract

Dispositivo de rodadura para sillas; que comprende: una carcasa (2) empotrable en el extremo inferior de la correspondiente pata de una silla y provista en su extremo inferior de una abertura; una esfera (1) dispuesta en el interior de la carcasa (2) con posibilidad de giro y de desplazamiento longitudinal entre una posición inoperante en la que permanece en el interior de la carcasa y una posición operativa en la que sobresale a través de la abertura de dicha carcasa (2); un separador (3) que es presionado por un muelle (4) situado en el interior de la carcasa (2) y que tiende a mantener la esfera (1) en una posición sobresaliente a través de la abertura de la carcasa (2).Rolling device for chairs; comprising: a housing (2) recessed at the lower end of the corresponding leg of a chair and provided at its lower end with an opening; a sphere (1) disposed inside the housing (2) with the possibility of rotation and longitudinal displacement between an inoperative position in which it remains inside the housing and an operative position in which it protrudes through the opening of said housing (2); a separator (3) that is pressed by a spring (4) located inside the housing (2) and that tends to keep the sphere (1) in an outstanding position through the opening of the housing (2).

Description

Dispositivo de rodadura de sillas Chair rolling device

Objeto de la invención. Object of the invention.

La presente invención se refiere a un dispositivo de rodadura para sillas, que esta diseñado para facilitar el movimiento, desplazamiento y arrastre de las sillas convencionales del hogar, oficina, etc sin esfuerzos, ruidos molestos, y desgaste de las patas de las sillas o de los suelos especialmente de madera u otros materiales. The present invention relates to a rolling device for chairs, which is designed to facilitate the movement, displacement and drag of conventional chairs of the home, office, etc. without effort, annoying noise, and wear of the legs of the chairs or of floors especially of wood or other materials.

Campo de aplicación de la invención. Field of application of the invention.

Este dispositivo de rodadura es aplicable en el plano inferior de apoyo de las patas de las sillas, acoplado dentro de las patas, ya sea haciendo un orificio o de cualquier otra manera. This rolling device is applicable in the lower plane of support of the legs of the chairs, coupled inside the legs, either making a hole or in any other way.

Antecedentes de la invención. Background of the invention.

Son numerosos los dispositivos que se utilizan para facilitar el movimiento o arrastre de sillas que normalmente están hechos con unas ruedas giratorias fijas que conforman los medios de apoyo de la silla con el suelo. There are numerous devices that are used to facilitate the movement or drag of chairs that are normally made with fixed swivel wheels that make up the support means of the chair with the floor.

Estos dispositivos tienen el inconveniente de que la silla no se puede quedar fija en el suelo porque siempre esta apoyada sobre las ruedas giratorias que facilitan que la silla se deslice con demasiada facilidad cuando se encuentra en uso lo que suele ser bastante molesto. These devices have the disadvantage that the chair cannot be fixed on the floor because it is always resting on the swivel wheels that make it easy for the chair to slide too easily when it is in use, which is usually quite annoying.

Existen varios dispositivos de rodamientos flotantes parecidos que se utilizan para deslizar por ejemplo tableros, en cadenas de montaje pero que presentan los mismos inconvenientes que las ruedas giratorias fijas. There are several similar floating bearing devices that are used to slide boards, for example, on assembly lines but which have the same drawbacks as fixed swivel wheels.

Descripción de la invención. Description of the invention

Este dispositivo de rodadura para sillas está compuesto de una carcasa cilíndrica, una esfera, un separador y un muelle. This rolling device for chairs is composed of a cylindrical shell, a sphere, a separator and a spring.

La carcasa presenta una boca por la que emerge parcialmente la esfera que es deslazada hacia el exterior de la carcasa por la actuación del muelle sobre el separador que está situado por encima de la mencionada esfera. The housing has a mouth through which the sphere that is displaced towards the outside of the housing partially emerges from the action of the spring on the separator that is located above said sphere.

Cada silla llevará un dispositivo de rodadura en cada pata para su desplazamiento mediante la rodadura de las esferas. Each chair will carry a rolling device on each leg for movement by rolling the spheres.

La finalidad de este dispositivo es que cuando una silla no está ocupada el muelle del mecanismo que presiona la bola contra el suelo provoca que la silla se eleve unos milímetros y que dicha silla quede apoyada sobre el suelo mediante las esferas de los dispositivos de rodadura permitiendo el giro de dichas esferas que la silla se deslice con gran facilidad y sin rozaduras ni ruidos molestos. The purpose of this device is that when a chair is not occupied the spring of the mechanism that presses the ball against the ground causes the chair to rise a few millimeters and that said chair is supported on the ground by means of the spheres of the rolling devices allowing The rotation of these spheres makes the chair slide very easily and without scratches or annoying noises.

Cuando la silla está ocupada o soporta cierto peso, por ejemplo el de una persona, los muelles de los mecanismos de rodadura se comprimen descendiendo el conjunto de la silla hasta que las patas de la misma tocan el suelo y las esferas se ocultan dentro del dispositivo correspondiente, quedando dicho dispositivo inhabilitado y la silla fija por el contacto de las patas con el suelo, sin movimientos inesperados o molestos, es decir como una silla normal y corriente. When the chair is occupied or supports a certain weight, for example that of a person, the springs of the rolling mechanisms are compressed by lowering the whole chair until the legs of the chair touch the ground and the spheres are hidden inside the device corresponding, said device being disabled and the chair fixed by the contact of the legs with the floor, without unexpected or annoying movements, that is to say as a normal and current chair.

En el momento de levantarse de la silla ésta se eleva gracias a los dispositivos volviendo a quedar apoyada sobre el suelo por medio de las esferas de los dispositivos de rodadura lo que permite su movimiento y desplazamiento. Esto facilitará por ejemplo entrar y salir con la silla de una mesa con espacio ajustado, mover la silla para barrer, etc. At the time of getting up from the chair, it rises thanks to the devices once again resting on the ground by means of the spheres of the rolling devices, which allows their movement and movement. This will make it easier, for example, to enter and leave the chair at a table with tight space, move the chair to sweep, etc.

Descripción de las figuras. Description of the figures.

Para complementar la descripción que se está realizando y con objeto de facilitar la comprensión de las características de la invención, se acompaña a la presente memoria descriptiva un juego de dibujos en los que, con carácter ilustrativo y no limitativo, se representa lo siguiente: To complement the description that is being made and in order to facilitate the understanding of the features of the invention, a set of drawings is attached to the present specification in which, for illustrative and non-limiting purposes, the following is represented:

--: La figura 1 muestra una vista en alzado del dispositivo de rodadura para sillas según la invención, seccionado por un plano vertical. Figure 1 shows an elevation view of the rolling device for chairs according to the invention, sectioned by a vertical plane.

--: La figura 2 muestra una vista general de una silla provista con el dispositivo de rodadura insertado en sus patas. Figure 2 shows a general view of a chair provided with the rolling device inserted in its legs.

--: La figura 3 muestra el detalle de colocación del mecanismo de rodamiento en una pata de una silla, apoyada sobre el suelo por medio de la esfera del dispositivo. Figure 3 shows the detail of placement of the bearing mechanism on a leg of a chair, resting on the ground by means of the sphere of the device.

--: La figura 4 muestra la esfera oculta en el interior del mecanismo de rodamiento, encontrándose la silla sometida a una fuerza vertical y la pata apoyada directamente sobre el suelo. Figure 4 shows the hidden sphere inside the bearing mechanism, the chair being subjected to a vertical force and the leg resting directly on the ground.

Realización preferente de la invención. Preferred embodiment of the invention.

Este dispositivo de rodadura para silla comprende una esfera (1) dispuesta en el interior de una carcasa (2) cilíndrica, con posibilidad de desplazamiento longitudinal entre una posición inoperante en la que permanece en el interior de la carcasa y una posición operativa en la que sobresale de dicha carcasa (2) a través de una abertura con una pestaña en punto redondo, definida en el extremo inferior de la carcasa y que sirve para sujetar la esfera (1), sin que se salga y que pueda rodar dentro del dispositivo. This chair rolling device comprises a sphere (1) disposed inside a cylindrical casing (2), with the possibility of longitudinal displacement between an inoperative position in which it remains inside the casing and an operating position in which It protrudes from said housing (2) through an opening with a round-shaped flange, defined at the lower end of the housing and which serves to hold the sphere (1), without leaving it and being able to roll inside the device.

La esfera (1) queda apoyada interiormente en un separador (3) que es presionado por el muelle (4) situado en el interior de la carcasa (2). La actuación del muelle (4) sobre el separador (3) tiende a mantener la esfera (1) en una posición sobresaliente respecto a la carcasa (2). The sphere (1) is supported internally in a separator (3) which is pressed by the spring (4) located inside the housing (2). The action of the spring (4) on the separator (3) tends to keep the sphere (1) in an outstanding position with respect to the housing (2).

En el ejemplo mostrado en la figura 1, el dispositivo de rodadura comprende en el extremo inferior de la carcasa In the example shown in Figure 1, the rolling device comprises at the lower end of the housing

(2)(2): una felpa limpiadora (5). a cleaning plush (5).

Como se observa en la figura 2, se coloca un dispositivo de rodadura el extremo inferior de cada una de la patas As seen in Figure 2, a rolling device is placed at the lower end of each of the legs

(6)(6): de una silla. Cuando se aplica un peso sobre la silla, por ejemplo el peso de un usuario, los muelles (4) se comprimen, y las esferas (1) se ocultan en los respectivas carcasas, apoyándose la silla de forma estable, por medio de los extremos inferiores de las patas (6) sobre el suelo, tal como se muestra en la figura 3. of a chair. When a weight is applied on the chair, for example the weight of a user, the springs (4) are compressed, and the spheres (1) are hidden in the respective housings, the chair resting stably, by means of the ends lower legs (6) on the ground, as shown in figure 3.

Cuando se deja de aplicar un peso sobre la silla, el muelle (4) desplaza la silla hacia arriba, tal como se muestra en la figura 4, lo que provoca que las esferas (1) se dispongan en una posición sobresaliente respecto a las carcasas (2), conformando unos medios de apoyo y rodadura de la silla respecto al suelo. When a weight is no longer applied to the chair, the spring (4) moves the chair upwards, as shown in Figure 4, which causes the spheres (1) to be arranged in an outstanding position with respect to the housings. (2), forming a means of support and rolling of the chair with respect to the ground.

Una vez descrita suficientemente la naturaleza de la invención, así como un ejemplo de realización preferente, se hace constar a los efectos oportunos que los materiales, forma, tamaño y disposición de los elementos descritos podrán ser modificados, siempre y cuando ello no suponga una alteración de las características esenciales de la invención que se reivindican a continuación. Once the nature of the invention has been sufficiently described, as well as a preferred embodiment, it is stated for the appropriate purposes that the materials, shape, size and arrangement of the described elements may be modified, provided that this does not imply an alteration. of the essential features of the invention that are claimed below.

Claims

1.-Rolling device for chairs, of the type intended to be applied in the lower support plane of the legs (6) of the chairs; characterized in that it comprises: a housing (2) recessed at the lower end 5 of a leg (6) of a chair and provided at its lower end with an opening; a sphere (1) disposed inside the housing (2) with the possibility of rotation and longitudinal displacement between an inoperative position in which it remains inside the housing (2) and an operative position in which it protrudes through of the opening of said housing (2); a separator (3) that is pressed by a spring (4) located inside the housing (2) and that acts on the sphere (1) and tends to keep it in an outstanding position through the

10 housing opening (2).

2.-Rolling device according to claim 1, characterized in that the housing comprises at its end a cleaning plush (5)

SPANISH OFFICE OF THE PATENTS AND BRAND

Application no .: 201100629

SPAIN

Date of submission of the application: 30.05.2011

Priority Date:

REPORT ON THE STATE OF THE TECHNIQUE

51 Int. Cl.: See Additional Sheet

RELEVANT DOCUMENTS

Categoría Category: 56 Documentos citados Reivindicaciones afectadas 56 Documents cited Claims Affected

X X: EP 0402346 A1 (AMEISBICHLER RUDOLF et al.) 12.12.1990, figuras & Resumen de la base de datos EPODOC. Recuperado de EPOQUE; AN EP-90890159-A. 1 EP 0402346 A1 (AMEISBICHLER RUDOLF et al.) 12.12.1990, figures & Summary of the EPODOC database. Recovered from EPOQUE; AN EP-90890159-A. one

Y Y: 2 2

Y Y: GB 641016 A (COLLIS & SONS LTD J et al.) 02.08.1950, página 3, líneas 43-58; figura. 2 GB 641016 A (COLLIS & SONS LTD J et al.) 02.08.1950, page 3, lines 43-58; figure. 2

X X: US 2819486 A (EDISON DICK) 14.01.1958, columna 1, líneas 15-19; columna 2, línea 59 – columna 5, línea 37; figuras. 1 US 2819486 A (EDISON DICK) 14.01.1958, column 1, lines 15-19; column 2, line 59 - column 5, line 37; figures. one

Y Y: 2 2

Y Y: US 4402108 A (PANNWITZ HANS U) 06.09.1983, columna 1, líneas 6-9; columna 6, líneas 12-30; figuras 5-6. 2 US 4402108 A (PANNWITZ HANS U) 06.09.1983, column 1, lines 6-9; column 6, lines 12-30; Figures 5-6. 2

X X: US 3216049 A (HAROLD NEVISON) 09.11.1965, columna 2, línea 5 – columna 3, línea 4; figuras. 1 US 3216049 A (HAROLD NEVISON) 09.11.1965, column 2, line 5 - column 3, line 4; figures. one

Y Y: 2 2

Y Y: US 2779965 A (SCHILBERG ARNOLD G) 05.02.1957, columna 2, líneas 30-35; figuras. 2 US 2779965 A (SCHILBERG ARNOLD G) 05.02.1957, column 2, lines 30-35; figures. 2

X X: DE 2823940 A1 (HAEDERER FRANZ) 13.12.1979, figuras & Resumen de la base de datos WPI. Recuperado de EPOQUE; AN 1979-L6986B. 1 DE 2823940 A1 (HAEDERER FRANZ) 13.12.1979, figures & Summary of the WPI database. Recovered from EPOQUE; AN 1979-L6986B. one

X X: JP 4193106 A (NISHIOKA ISHIO et al.) 13.07.1992, figuras & Resumen de la base de datos EPODOC. Recuperado de EPOQUE; AN JP-32148090-A. 1 JP 4193106 A (NISHIOKA ISHIO et al.) 13.07.1992, figures & Summary of the EPODOC database. Recovered from EPOQUE; AN JP-32148090-A. one

Categoría de los documentos citados X: de particular relevancia Y: de particular relevancia combinado con otro/s de la misma categoría A: refleja el estado de la técnica O: referido a divulgación no escrita P: publicado entre la fecha de prioridad y la de presentación de la solicitud E: documento anterior, pero publicado después de la fecha de presentación de la solicitud Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

El presente informe ha sido realizado • para todas las reivindicaciones • para las reivindicaciones nº: This report has been prepared • for all claims • for claims no:

Fecha de realización del informe 14.09.2012 Date of realization of the report 14.09.2012: Examinador E. Usero Sánchez Página 1/4 Examiner E. Usero Sánchez Page 1/4

REPORT OF THE STATE OF THE TECHNIQUE

Application number: 201100629

CLASSIFICATION OBJECT OF THE APPLICATION

A47B91 / 06 (2006.01) A47C7 / 00 (2006.01) B60B33 / 06 (2006.01) B60B33 / 08 (2006.01)

Minimum documentation sought (classification system followed by classification symbols)

A47B, A47C, B60B

Electronic databases consulted during the search (name of the database and, if possible, search terms used)

INVENTIONS, EPODOC

State of the Art Report Page 2/4

WRITTEN OPINION

Application number: 201100629

Date of Written Opinion: 14.09.2012

Statement

Novedad (Art. 6.1 LP 11/1986) Novelty (Art. 6.1 LP 11/1986): Reivindicaciones Reivindicaciones 2 1 SI NO Claims Claims twenty-one IF NOT

Actividad inventiva (Art. 8.1 LP11/1986) Inventive activity (Art. 8.1 LP11 / 1986): Reivindicaciones Reivindicaciones 1,2 SI NO Claims Claims 1.2 IF NOT

The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).

Opinion Base.-

This opinion has been made on the basis of the patent application as published.

State of the Art Report Page 3/4

WRITTEN OPINION

Application number: 201100629

1. Documents considered.-

The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.

Documento Document: Número Publicación o Identificación Fecha Publicación Publication or Identification Number publication date

D01 D01: EP 0402346 A1 (AMEISBICHLER RUDOLF et al.) 12.12.1990 EP 0402346 A1 (AMEISBICHLER RUDOLF et al.) 12.12.1990

D02 D02: GB 641016 A (COLLIS & SONS LTD J et al.) 02.08.1950 GB 641016 A (COLLIS & SONS LTD J et al.) 02.08.1950

D03 D03: US 2819486 A (EDISON DICK) 14.01.1958 US 2819486 A (EDISON DICK) 14.01.1958

D04 D04: US 4402108 A (PANNWITZ HANS U) 06.09.1983 US 4402108 A (PANNWITZ HANS U) 06.09.1983

D05 D05: US 3216049 A (HAROLD NEVISON) 09.11.1965 US 3216049 A (HAROLD NEVISON) 09.11.1965

D06 D06: US 2779965 A (SCHILBERG ARNOLD G) 05.02.1957 US 2779965 A (SCHILBERG ARNOLD G) 05.02.1957

D07 D07: DE 2823940 A1 (HAEDERER FRANZ) 13.12.1979 DE 2823940 A1 (HAEDERER FRANZ) 13.12.1979

D08 D08: JP 4193106 A (NISHIOKA ISHIO et al.) 13.07.1992 JP 4193106 A (NISHIOKA ISHIO et al.) 13.07.1992

2. Statement motivated according to articles 29.6 and 29.7 of the Regulations for the execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement

The present application refers to a rolling device for chairs.

The object of the invention according to claim 1 is a rolling device for a chair leg comprising a recessed housing at the lower end of the leg, a sphere disposed therein, a separator and a spring that presses it causing the sphere it can move between two positions, one inoperative inside the housing and another operative in which it protrudes from the housing through the opening that it has.

These technical characteristics are already known from documents D01 (EPODOC summary; figures), D03 (column 1, lines 15-19; column 2, line 59-column 5, line 37; figures 1-2), D05 (column 2, line 5 - column 3, line 4; figures), D07 (WPI Summary; Figures) and D08 (WPI Summary; figures), therefore, claim 1 is novel based on what is described in any of these documents.

The object of the invention according to claim 2 is a chair rolling device comprising a housing, a sphere, a separator and a spring that allows the movement of the sphere between an operative position and an inoperative one, which has at its ends a cleaning plush

The difference between the device described in D01 and that of the application lies in the provision of an element for cleaning the sphere. The addition of this type of element to the ball rolling devices is known from document D02, which describes a rolling device formed by a housing and a sphere which, in addition to a felt ring for cleaning the same (page 3, lines 43-58; figure).

The use of a plush instead of a felt is a design option that is considered a mere obvious particular execution for the person skilled in the art, whereby claim 2 lacks inventive activity based on what is described in documents D01 and D02.

This same reasoning could be done with documents D03 and D04 (column 1, lines 6-9; column 6, lines 12-30; figures 5-6) or documents D05 and D06 (column 2, lines 30-35; figures) .

State of the Art Report Page 4/4