FR2626944A1 - Device for flexibly connecting a rotary drive shaft to a rotating disc coaxial with the shaft - Google Patents
Device for flexibly connecting a rotary drive shaft to a rotating disc coaxial with the shaft Download PDFInfo
- Publication number
- FR2626944A1 FR2626944A1 FR8801302A FR8801302A FR2626944A1 FR 2626944 A1 FR2626944 A1 FR 2626944A1 FR 8801302 A FR8801302 A FR 8801302A FR 8801302 A FR8801302 A FR 8801302A FR 2626944 A1 FR2626944 A1 FR 2626944A1
- Authority
- FR
- France
- Prior art keywords
- shaft
- membrane
- disc
- periphery
- fixed
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/50—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members
- F16D3/76—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/08—Circular back-plates for carrying flexible material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Plates (AREA)
Abstract
Description
Dispositif de connexion souple entre un arbre rotatif d'entraînement et un plateau tournant coaxial aï 1 l'arbre
La présente invention concerne un dispositif de connexion souple entre un arbre rotatif d'entrainement et un plateau tournant coaxial à ' I'arbre, du type comportant une membrane souple de liaison entre l'- extrémité de l'arbre et le plateau.Flexible connection device between a rotary drive shaft and a coaxial turntable to the shaft
The present invention relates to a flexible connection device between a rotary drive shaft and a rotary plate coaxial with the shaft, of the type comprising a flexible membrane for connection between the end of the shaft and the plate.
Il pourra s'agir par exemple d'un dispositif dont ledit plateau tournant est destiné å porter un disque abrasif, un disque lustreur ou analogue, le fait que la connexion soit souple permettant de faciliter le travail -de l'opérateur et d'obtenir une meilleure fin- pion, le disque s'adaptant plus commodément aux irrégu- larités de la surface à traiter
Dans un dispositif connu de ce type ladite membrane souple est enserrée par toute Sa périphérie entre le bord d'un capotage supérieur et une nervure circulaire plate d'une piNce de liaison de forme compliquée, dont est solidarisé le plateau tournant
Le but de la présente invention est d'obtenir une structure de liaison plus simple et à meilleur marché.It could for example be a device whose said turntable is intended to carry an abrasive disc, a polishing disc or the like, the fact that the connection is flexible making it possible to facilitate the work of the operator and to obtain a better finish, the disc adapting more conveniently to the irregularities of the surface to be treated
In a known device of this type, said flexible membrane is enclosed by its entire periphery between the edge of an upper cowling and a flat circular rib with a connection piece of complicated shape, of which the turntable is secured.
The object of the present invention is to obtain a simpler and cheaper connection structure.
Pour ce faire, un dispositif du-type défini au début sera, conformément à la présente invention, essentellement caractérisé en ce que la périphérie de ladite membrane est fixée par des attaches ponctuelles sur le bord intérieur d'un disque intermédiaire à ouverture centrale, sur le bord extérieur duquel est fixée la périphérie, dudit plateau, la partie centrale de ladite membrane étant assujettie à l'extrémité de l'arbre. To do this, a device of the type defined at the start will, in accordance with the present invention, be essentially characterized in that the periphery of said membrane is fixed by point fasteners on the inner edge of an intermediate disc with central opening, on the outer edge of which the periphery of said plate is fixed, the central part of said membrane being secured to the end of the shaft.
Les attaches ponctuelles en question pourront être des systèmes vis-écrou, des rivets ou analogues. The point attachments in question may be screw-nut systems, rivets or the like.
D'autres dispositions avantageuses de la présente invention seront vues plus bas à la lecture de la description d'un exemple de réalisation donné à titre purement illustratif, avec c référence aux figures du dessin annexe, dans lequel
la figure I est une vue en élévation d'un dispositif de connexion conforme i l'invention avec une demi-vue en coupe-axiale ; et
la figure 2 est une vue montrant le dessous du dispositif lorsque le plateau est retiré (à savoir vue selon la ligne IN IN de la figure 1). Other advantageous arrangements of the present invention will be seen below on reading the description of an embodiment given purely by way of illustration, with c reference to the figures of the accompanying drawing, in which
Figure I is an elevational view of a connection device according to the invention with a half-view in axial section; and
Figure 2 is a view showing the underside of the device when the tray is removed (i.e. view along the line IN IN of Figure 1).
Sur le dispositif représenté sur les figures1 l'arbre rotatif d'entrainement a été référencé 1, et le plateau tournant coaxial à l'arbre a été référencé 2 et est avantageusement en matière plastique Sur ce plateau, qui est de forme générale circulaire, est collé un premier disque 3 de matière alvéolaire, par exemple du polyuréthane, dont est solidarisé, également par collage, un disque d'accrochage 4 Sur ce disque d'accrochage 4, on peut par suite fixer,- par. un assemblage connu sous l'appellation "VELCROtl, le disque de travail amovibla approprié, selon le travail a effectuer, par exemple un disque abrasif t un disque ponceur, un disque lustrer, etc Un tel disque n'a pas été représenté sur le dessin. On the device represented in FIGS. 1 the rotary drive shaft has been referenced 1, and the rotary plate coaxial with the shaft has been referenced 2 and is advantageously made of plastic. On this plate, which is of generally circular shape, is glued a first disc 3 of cellular material, for example polyurethane, of which is secured, also by gluing, a hanging disc 4 On this hanging disc 4, it is therefore possible to fix, - by. an assembly known as "VELCROtl, the suitable removable work disk, depending on the work to be performed, for example an abrasive disk t a sanding disk, a buffing disk, etc. Such a disk has not been shown in the drawing .
Quant a la membrane souple de liaison entre l'extrémité de l'arbre 1 et le plateau 2, en soi connue, elle a été référencée 5. Conformément a la disposition principale de la présente invention, la périphérie de cette membrane souple 51 par exemple en caoutchouc synthétique ou- en matière plastique ínjactee, est fixée par un ensemble de quatre systèmes a vis 6 - écrou 7 sur le bord intérieur 8 dlan disque intermédiaire -9 a ouverture centrale 10, disque intermédiaire sur le bord extérieur duquel est fixée la périphérie du plateau précité 2.Cette fixation du bord extérieur du disque intermédiaire 9 sur la périphérie du plateau 2 est assurée de préférence par encliquetage, comme ceci est visible (en 15) sur la partie gauche du dessin de la figure 1. As for the flexible membrane for connection between the end of the shaft 1 and the plate 2, known per se, it has been referenced 5. In accordance with the main arrangement of the present invention, the periphery of this flexible membrane 51 for example made of synthetic rubber or plastic, is fixed by a set of four screw systems 6 - nut 7 on the inner edge 8 dlan intermediate disc -9 with central opening 10, intermediate disc on the outer edge of which the periphery is fixed of the aforementioned tray 2.This attachment of the outer edge of the intermediate disc 9 to the periphery of the tray 2 is preferably ensured by snap-fastening, as can be seen (at 15) on the left part of the drawing in FIG.
Quant a la partie centralede la membrane souple 5, elle est assujettie ê l'extrémité de llvrbre 1 partous moyens appropries. Sur le dessin de la figure 1, cette partie centrale de la membrane est assujettie a l'extrémité de l'arbre t en étant enserrée entre deux rondelles 11 et 12, l'assemblage ainsi réalisé étant lui-même serrê entre l'extrémite de l'arbre 1 et la tête 13 d'une vis fixée en bout dans un taraudage axial de l'arbre. As for the central part of the flexible membrane 5, it is subject to the end of the shaft 1 in suitable means. In the drawing of Figure 1, this central part of the membrane is subject to the end of the shaft t by being clamped between two washers 11 and 12, the assembly thus produced being itself clamped between the end of the shaft 1 and the head 13 of a screw fixed at the end in an axial thread of the shaft.
Le dispositif de connexion souple comporte en outre un capotage de forme générale cylindrique 14 qui est encliqueté au niveau de l'extrémité de la surface intérieure de son bord (en 15') sur un épaulement extérieur 16 du disque intermédiaire 9. The flexible connection device also comprises a generally cylindrical casing 14 which is snapped at the end of the inner surface of its edge (at 15 ') on an outer shoulder 16 of the intermediate disc 9.
En cas de besoin, le plateau 2 peut être désolidarisé du disque intermédiaire 9 et, à cet effet, sont prévues sur le bord extérieur de ce disque trois encoches 17 dans lesquelles on peut insérer l'extrémité d'un outil approprié, par exemple d'un tournevis, pour écarter l'un de l'autre les bords respectifs du plateau 2 et du disque 9 et assurer ainsi leur désencliquetage. If necessary, the plate 2 can be detached from the intermediate disc 9 and, for this purpose, are provided on the outer edge of this disc three notches 17 in which one can insert the end of a suitable tool, for example d 'a screwdriver, to separate from each other the respective edges of the plate 2 and the disc 9 and thus ensure their release.
De même, on peut désolidariser le capotage cylindrique 14 de l'épaulement 1-6 du disque intermébiaire 9 ss l'aide de trois encoches 17 t prévues sur le bord de ce capotage. Likewise, it is possible to separate the cylindrical casing 14 from the shoulder 1-6 of the intermediate disk 9 ss using three notches 17 t provided on the edge of this casing.
Ce capotage est prévu essentielle-ment pour masquer l'intérieur du dispositif et en particulier les êcrous 7, mais il sert également à obtenir en cas de besoin une suppression de la liaison souple entre l'arbre d'entrainement t et le plateau 2 et par conséquent a rendre cette liaison rigide. This cowling is provided essentially for concealing the interior of the device and in particular the nuts 7, but it also serves to obtain, if necessary, a suppression of the flexible connection between the drive shaft t and the plate 2 and therefore to make this connection rigid.
Pour ce faire, on a prévu de monter un écrou moleté 18 sur une partie filetée 19 de l'arbre, laquelle s 'étend au-dessus du capotage 14. Ainsi, lorsque l'on désire obtenir une liaison rigide entre l'arbre 1 et le plateau 2, il suffit de serrer l'écrou moleté 18 jusqu'à le bloquer sur la surface supérieure 20 du capotage
Dans l'exemple de réalisation qui vient d'être décrit, on a supposé que l'arbre d'entrainement 1 était en acier, mais il peut être en tout autre matériau et en particulier en matière plastique Dans ce dernier cas, il peut être moulé dlone pièce avec la membrane 5, ou encore son extrémité peut être soudée au centre de cette membrane To do this, provision has been made to mount a knurled nut 18 on a threaded part 19 of the shaft, which extends above the casing 14. Thus, when it is desired to obtain a rigid connection between the shaft 1 and the plate 2, it suffices to tighten the knurled nut 18 until it locks on the upper surface 20 of the cowling
In the embodiment which has just been described, it has been assumed that the drive shaft 1 is made of steel, but it can be made of any other material and in particular plastic. In the latter case, it can be molded in one piece with membrane 5, or its end can be welded to the center of this membrane
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8801302A FR2626944B1 (en) | 1988-02-04 | 1988-02-04 | DEVICE FOR FLEXIBLE CONNECTION BETWEEN A ROTARY DRIVE SHAFT AND A ROTATING PLATE COAXIAL TO THE SHAFT |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8801302A FR2626944B1 (en) | 1988-02-04 | 1988-02-04 | DEVICE FOR FLEXIBLE CONNECTION BETWEEN A ROTARY DRIVE SHAFT AND A ROTATING PLATE COAXIAL TO THE SHAFT |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2626944A1 true FR2626944A1 (en) | 1989-08-11 |
FR2626944B1 FR2626944B1 (en) | 1992-04-03 |
Family
ID=9362937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8801302A Expired - Fee Related FR2626944B1 (en) | 1988-02-04 | 1988-02-04 | DEVICE FOR FLEXIBLE CONNECTION BETWEEN A ROTARY DRIVE SHAFT AND A ROTATING PLATE COAXIAL TO THE SHAFT |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2626944B1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5201149A (en) * | 1990-06-27 | 1993-04-13 | Gerd Eisenblaetter Gmbh | Lamellar end grinding tool |
WO1994017959A1 (en) * | 1993-02-01 | 1994-08-18 | Bey, Jacques | Holder for abrasive disc or grinding disc |
FR2726497A1 (en) * | 1994-11-04 | 1996-05-10 | Brookdale Tool Co Ltd | Fixing abrasive or polishing disc to electric hand drill |
WO1996020812A1 (en) * | 1995-01-05 | 1996-07-11 | Reiling Gmbh | Grinding or polishing wheel |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2371021A (en) * | 1944-07-25 | 1945-03-06 | Henry J Berry | Rotatable sanding or buffing tool |
US3345785A (en) * | 1964-12-07 | 1967-10-10 | Warren N Riker | Sanding disc assembly |
DE8624852U1 (en) * | 1986-09-17 | 1987-08-13 | Wolff, Robert, 5446 Engeln | Grinding or polishing disc |
DE3705217C1 (en) * | 1986-09-17 | 1987-12-10 | Robert Wolff | Grinding or polishing plate |
-
1988
- 1988-02-04 FR FR8801302A patent/FR2626944B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2371021A (en) * | 1944-07-25 | 1945-03-06 | Henry J Berry | Rotatable sanding or buffing tool |
US3345785A (en) * | 1964-12-07 | 1967-10-10 | Warren N Riker | Sanding disc assembly |
DE8624852U1 (en) * | 1986-09-17 | 1987-08-13 | Wolff, Robert, 5446 Engeln | Grinding or polishing disc |
DE3705217C1 (en) * | 1986-09-17 | 1987-12-10 | Robert Wolff | Grinding or polishing plate |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5201149A (en) * | 1990-06-27 | 1993-04-13 | Gerd Eisenblaetter Gmbh | Lamellar end grinding tool |
WO1994017959A1 (en) * | 1993-02-01 | 1994-08-18 | Bey, Jacques | Holder for abrasive disc or grinding disc |
BE1006713A3 (en) * | 1993-02-01 | 1994-11-22 | Bey Jacques | Holder sanded or disc. |
FR2726497A1 (en) * | 1994-11-04 | 1996-05-10 | Brookdale Tool Co Ltd | Fixing abrasive or polishing disc to electric hand drill |
WO1996020812A1 (en) * | 1995-01-05 | 1996-07-11 | Reiling Gmbh | Grinding or polishing wheel |
Also Published As
Publication number | Publication date |
---|---|
FR2626944B1 (en) | 1992-04-03 |
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ST | Notification of lapse |