EP0572310A1 - Antistatischer Gleitkörper für Möbelfuss oder dergleichen - Google Patents

Antistatischer Gleitkörper für Möbelfuss oder dergleichen Download PDF

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Publication number
EP0572310A1
EP0572310A1 EP93401332A EP93401332A EP0572310A1 EP 0572310 A1 EP0572310 A1 EP 0572310A1 EP 93401332 A EP93401332 A EP 93401332A EP 93401332 A EP93401332 A EP 93401332A EP 0572310 A1 EP0572310 A1 EP 0572310A1
Authority
EP
European Patent Office
Prior art keywords
orifice
pivot
shoulder
spring
skate according
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
Application number
EP93401332A
Other languages
English (en)
French (fr)
Other versions
EP0572310B1 (de
Inventor
Jean-René Bruandet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bruandet SA
Original Assignee
Bruandet SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bruandet SA filed Critical Bruandet SA
Publication of EP0572310A1 publication Critical patent/EP0572310A1/de
Application granted granted Critical
Publication of EP0572310B1 publication Critical patent/EP0572310B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B91/00—Feet for furniture in general
    • A47B91/06—Gliders or the like

Definitions

  • the present invention relates to the pads for the feet of furniture, seats or the like making it possible to move this furniture on the ground and also to discharge static electricity, very troublesome for the users of this furniture, capable of being stored by this furniture when, by their feet, they rub on the ground, for example on carpet made of synthetic or similar material.
  • Patches for furniture feet are already known which allow the static electricity stored during their movement on the ground to be discharged.
  • These so-called “antistatic” pads are, for example, those made of a material loaded with carbon.
  • Such a skid is thus a good enough conductor of electricity to allow that stored by the piece of furniture to flow towards the ground, but has the drawback of scratching the ground when moving the piece of furniture and leaving black marks there. which are carbon deposits. It cannot therefore, in particular, be used in places such as clean rooms, for example in the electronics, aeronautical or aerospace industries.
  • the object of the present invention is therefore to produce a shoe foot pad, which overcomes the drawbacks of the shoe pads of the prior art mentioned above.
  • the single figure represents a preferred embodiment of a shoe 1 for a furniture leg, the latter being very schematically represented in 2.
  • This shoe 1 comprises a base 3 comprising a surface 4 capable of making contact with a ground 5, this surface being for example flat, as illustrated in the figure.
  • This base is made of a first material which can be an electrically insulating material chosen, for example, from the following materials: plastic, P.V.C., advantageously polypropylene.
  • An orifice 6 is produced by crossing right through the base 3 along an axis 7 substantially perpendicular to the contact surface 4.
  • the section of the end 8 of this orifice 6 opening onto the contact surface 4 comprises a first re-entering shoulder 9.
  • the shoe also includes a pivot 10 disposed in the orifice 6, the length of the part 11 of the pivot 10 plunging into the orifice being less than the length of the orifice, so as to leave a free space 12 between its end 13 and the shoulder 9.
  • the pivot 10 is made of a second electrically conductive material, for example steel.
  • this pivot 10 has a shoulder 30 which allows, for example, to limit its penetration into the orifice 6.
  • This shoulder 30 is arranged to, preferably, cooperate with the edge 31 of the orifice 6 opposite the end 8 opening onto the contact surface 4, but may consist of a collar which has the advantage of defining two shoulders, the shoulder 30 defined above and another shoulder making it possible, in a manner known in itself, to limit the insertion of the pivot into the base of the cabinet 2.
  • a body 14 is slidably mounted so that it is able to come into contact with the first shoulder 9 and that a first 15 of its ends protrudes relative to the contact surface. 4.
  • the body 14 is made of a third material, also electrically conductive, such as steel and more advantageously stainless steel.
  • a spring 16 mounted in compression between the second end of the body 14 and the end 13 of the pivot 10 plunging into the orifice 6.
  • the spring is made of a fourth electrically conductive material, for example steel. It is specified that by “spring” is meant any elastic means making it possible to exert a couple of opposite forces between two points while tending to move them away, the spring illustrated, of cylindrical type with distant turns, being only one possible embodiment.
  • the two ends of the spring 16 can be directly in contact with the body 14 and the pivot 10, but the shoe can advantageously include means for electrically connecting the two ends of the spring 16 respectively with the pivot and the body.
  • These means comprise at least one pad 17 interposed between one of the ends of the spring and the second end of the body 14. In the embodiment illustrated in the figure, they include another 18 between the other end of the spring and the end 13 of pivot 10.
  • the tablet is made of a fifth material having a high calibrated electrical resistivity, for example a dissipative or antistatic material.
  • a fifth material having a high calibrated electrical resistivity for example a dissipative or antistatic material.
  • the body 14 can have different shapes. It will for example be constituted by a ball 20, as illustrated in FIG. 1.
  • the shoulder 9 has the form of a concave surface in a spherical zone substantially complementary to the ball, the concave surface being turned towards the free space 12.
  • the shape of a ball 20 given to the body 14 can, in certain cases in particular of the nature of the ground, present disadvantages. Indeed, by pivoting on itself, it facilitates the movement of the piece of furniture in all directions, but can also introduce impurities into the end 8 of the orifice 6. This accumulation of impurities can affect the pivoting of the ball and , above all, make a layer electrically insulating between it and, for example, the spring 16, at the risk of preventing the shoe from ensuring the discharge of static electricity as described below.
  • the body 14 may it be advantageous to produce the body 14, as illustrated in FIG. 2, in the form of a stud 21 with an outgoing shoulder 22 on its end opposite its end 15 in contact with the ground, and being able to translate in the end 8 of the orifice 6 in the manner of a piston, in a translation limited by the cooperation of its outgoing shoulder 22 against the re-entering shoulder 9 of the end 8 of the orifice 6.
  • the shoe 1 described above acts as follows, when it is mounted on a furniture leg 2:
  • the piece of furniture When the piece of furniture has such a shoe, the latter bears on the ground 5 by its contact surface 4 and the end 15 of the body 14, ball 20 or the stud 21, held between the shoulder 9 and the spring 16, this spring ensuring constant contact of the body with the ground, even if the latter has slight differences in level, as well as electrical continuity between the body and the pivot. Therefore, all the static electricity which would have been stored by the piece of furniture, seat, etc., is led to the mass of the ground by way of the foot of the piece of furniture 2, the pivot 10, at least one patch 17, 18, the spring 16 and the body 14 which are all made of electrically conductive material.
  • the pad 17 is advantageously made of a dissipative or antistatic material, with the aim of slowing the flow of static electricity towards the ground, so as not to create radio waves which can lead to the destruction of sensitive electronic organs.
  • the ball shape 20 given to the body 14, as well as the semispherical shape given to the end 15 of the stud 21 in contact with the ground, has the advantage, compared to other shapes, of reducing the risks of scratches on this floor when moving the furniture, seat, etc., and this advantage is reinforced by the fact that the body 14 is made of stainless steel, which prevents it from oxidizing, in particular following its contact, for example during cleaning the floor with a liquid such as water or the like.
  • the antistatic pad according to the invention has advantages compared to the pads described in the preamble. Its base can indeed be made of a material not loaded with carbon and will therefore not leave a trace or unsightly scratch on the ground. These pads can in particular equip the furniture and seats of so-called "white” rooms or the like. In addition, their structure allows them to compact shape which facilitates their construction and ensures them of good solidity, while allowing them to preserve aesthetic qualities.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Elimination Of Static Electricity (AREA)
EP19930401332 1992-05-29 1993-05-25 Antistatischer Gleitkörper für Möbelfuss oder dergleichen Expired - Lifetime EP0572310B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9206567A FR2691618B1 (fr) 1992-05-29 1992-05-29 Patin antistatique pour pied de meuble.
FR9206567 1992-05-29

Publications (2)

Publication Number Publication Date
EP0572310A1 true EP0572310A1 (de) 1993-12-01
EP0572310B1 EP0572310B1 (de) 1996-03-13

Family

ID=9430285

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930401332 Expired - Lifetime EP0572310B1 (de) 1992-05-29 1993-05-25 Antistatischer Gleitkörper für Möbelfuss oder dergleichen

Country Status (3)

Country Link
EP (1) EP0572310B1 (de)
DE (1) DE69301768D1 (de)
FR (1) FR2691618B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6111196A (en) * 1996-02-28 2000-08-29 Sony Corporation Slide tray having a rolling conductive path
DE202005018857U1 (de) * 2005-12-01 2007-04-12 Sonnendorfer Horst Transportrolle für einen Einkaufswagen
US20220225768A1 (en) * 2021-01-18 2022-07-21 Scott Randall Newman Grounding Floor Glide for Shelving, Chairs, and Equipment to Reduce Risk from ESD (Electro-Static Discharge) and Protect Floors from Damage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1839593A (en) * 1929-06-12 1932-01-05 Branche C Rice Resilient glide for furniture
FR2642706A1 (fr) * 1989-02-09 1990-08-10 Bruandet Sa Roulette pour pied de meuble ou analogue permettant la decharge de l'electricite statique
DE3913720A1 (de) * 1989-04-26 1990-10-31 Stein & Co Paul Vom Laufrolle, insbesondere fuer moebel, apparate od.dgl.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1839593A (en) * 1929-06-12 1932-01-05 Branche C Rice Resilient glide for furniture
FR2642706A1 (fr) * 1989-02-09 1990-08-10 Bruandet Sa Roulette pour pied de meuble ou analogue permettant la decharge de l'electricite statique
DE3913720A1 (de) * 1989-04-26 1990-10-31 Stein & Co Paul Vom Laufrolle, insbesondere fuer moebel, apparate od.dgl.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6111196A (en) * 1996-02-28 2000-08-29 Sony Corporation Slide tray having a rolling conductive path
DE202005018857U1 (de) * 2005-12-01 2007-04-12 Sonnendorfer Horst Transportrolle für einen Einkaufswagen
US20220225768A1 (en) * 2021-01-18 2022-07-21 Scott Randall Newman Grounding Floor Glide for Shelving, Chairs, and Equipment to Reduce Risk from ESD (Electro-Static Discharge) and Protect Floors from Damage

Also Published As

Publication number Publication date
DE69301768D1 (de) 1996-04-18
FR2691618A1 (fr) 1993-12-03
EP0572310B1 (de) 1996-03-13
FR2691618B1 (fr) 1994-08-26

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