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 PDF

Info

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
Application number
FR8801302A
Other languages
French (fr)
Other versions
FR2626944B1 (en
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.)
HENRIET JACQUES
Original Assignee
HENRIET JACQUES
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 HENRIET JACQUES filed Critical HENRIET JACQUES
Priority to FR8801302A priority Critical patent/FR2626944B1/en
Publication of FR2626944A1 publication Critical patent/FR2626944A1/en
Application granted granted Critical
Publication of FR2626944B1 publication Critical patent/FR2626944B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

Device for flexibly connecting a rotary drive shaft 1 to a rotating disc 2 coaxial with the shaft, of the type including a flexible linkage membrane 5 between the end of the shaft 1 and the disc, characterized in that the periphery of the said membrane 5 is fixed by point fasteners 6-7 to the internal edge 8 of an intermediate disc 9 with a central opening 10, on the external edge of which disc is fixed the periphery of the said disc 2, the central part of the said membrane being securely fastened to the end of the shaft.

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)

REVENDICATIONS 1. Dispositif de connexion souple entre un arbre rotatif d'entrainement (1) et un plateau tournant (2 coaxial à l'arbre, du type comportant une membrane souple de liaison (5) entre l'extrémité de l'arbre (1) et le plateau, caractérisé en ce que la périphérie de ladite membrane t5) est fixée par des attaches ponctuelles t6-7) sur le bord intérieur (8) d'un disque intermédiaire (9) a ouverture centrale (10), sur le bord extérieur duquel est fixée la périphérie dudit plateau (2), la partie centrale de ladite membrane étant assujettie a l'extrémité de l'arbre. 1. Flexible connection device between a rotary drive shaft (1) and a turntable (2 coaxial with the shaft, of the type comprising a flexible connecting membrane (5) between the end of the shaft (1) and the plate, characterized in that the periphery of said membrane t5) is fixed by point fasteners t6-7) on the inner edge (8) of an intermediate disc (9) with central opening (10), on the edge outside of which the periphery of said plate (2) is fixed, the central part of said membrane being secured to the end of the shaft. 2. Dispositif selon la revendication I, caractê- risé en ce que la périphérie dudit plateau (2) est fixée sur le bord extérieur du disque intermédiaire (9) par encliquetage (15) 2. Device according to claim I, characterized in that the periphery of said plate (2) is fixed to the outer edge of the intermediate disc (9) by snap-fastening (15) 3. Dispositif selon la revendication í ou 2, ca- ractérisé en ce que la partie centrale de la membrane (5) est assujettie-à l'extrémité de l'arbre fi en étant enserrée entre deux rondelles (11-12), l'assemblage étant serré entre l'extrémité de l'arbre (1) et la tête (13) d'une vis fixée en bout dans un taraudage axial de l'arbre.  3. Device according to claim í or 2, characterized in that the central part of the membrane (5) is subject to the end of the shaft fi by being sandwiched between two washers (11-12), l 'assembly being 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. 4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un capotage (14) est encliqueté (15') t) sur un épaulement extérieur (16) du disque intermédiaire (9). 4. Device according to any one of the preceding claims, characterized in that a cowling (14) is snapped on (15 ′) t) on an external shoulder (16) of the intermediate disc (9). 5. Dispositif selon la vevendication 1 ou 2, ca ractérisé en ce que la membrane souple (tl est en matière plastique injectée. 5. Device according to vevendication 1 or 2, ca acterized in that the flexible membrane (tl is plastic injected. 6. Dispositif selon la revendication 5, carac ternis en ce que l'arbre (1) est moulé d'une pièce avec la membrane (5). 6. Device according to claim 5, charac tarnished in that the shaft (1) is molded in one piece with the membrane (5). 7. Dispositif selon la revendication 5, carac térisé en ce que l'arbre (1) est en matière plastique et en ce que son extrémité est soudée au centre de la membrane (5) 7. Device according to claim 5, charac terized in that the shaft (1) is made of plastic and in that its end is welded to the center of the membrane (5) 8. Dispositif selon l'une quelconque des revendications 4 à 7, caractérisé en ce que l'arbre (1) porte une partie filetée (9) s'étendant au-dessus dudit capotage, et en ce qu un écrou- (18) est engage sur cette partie filetée (19).  8. Device according to any one of claims 4 to 7, characterized in that the shaft (1) carries a threaded part (9) extending above said cowling, and in that a nut- (18) is engaged on this threaded part (19).
FR8801302A 1988-02-04 1988-02-04 DEVICE FOR FLEXIBLE CONNECTION BETWEEN A ROTARY DRIVE SHAFT AND A ROTATING PLATE COAXIAL TO THE SHAFT Expired - Fee Related FR2626944B1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
EP0567853A1 (en) Household appliance, like a mixer equipped with a security device
CA2202203A1 (en) Ultrasonic vibration cutter
FR2626944A1 (en) Device for flexibly connecting a rotary drive shaft to a rotating disc coaxial with the shaft
FR2632584A1 (en) SYSTEM FOR THE REMOVABLE MOUNTING OF A PORTABLE DEVICE ON A MOTOR OR THE LIKE
FR2623434A1 (en) TOOL HOLDER FOR VALVE SEAT GRINDING MACHINE
FR2714323A1 (en) Electric hand machine including chainsaw, circular saw.
EP1723003B1 (en) Vibratory warning device and seat provided therewith
CH660298A5 (en) FIXING DEVICE FOR A DENTISTRY TOOL.
JPH06170733A (en) Belt or disk sander with dust collecting device
FR2536353A1 (en) ADJUSTABLE SUPPORT FOR OPTICAL LIGHTS OF AUTOMOTIVE LIGHTS
EP2676343B1 (en) Electric control or signaling device
US5722606A (en) Pepper grinder
WO2008087285A2 (en) Rail cut-off machine or the like
EP1529472B1 (en) Electric household appliance for food processing comprising an accessory removably coupled to a housing
FR2556584A2 (en) Dental tool fixing system - has cone shaped clamp which is screwed to fasten drill in place
FR2542537A1 (en) Telephone which can be used without employing the hands
FR2827535A3 (en) Electric knife grinder has motor connected to basic body, reducing gear, main shaft, spacer pipe, grinder discs, springs, cover with slits
FR2504872A1 (en) Support for ancillary vehicle mirror - with clamps and other fittings moulded from metal alloy or plastics materials
FR2657805A1 (en) Flexible and removable device for connecting a grinding or polishing tool to the free end of a drive shaft
FR2535660A1 (en) Anti theft device for automobile vehicle headlights
KR880004500Y1 (en) Connection device in kitchen furniture
FR2726497A1 (en) Fixing abrasive or polishing disc to electric hand drill
JPH107050A (en) Mounting device of lamp for bicycle
BE568070A (en) Grating or slicing device with multiplier, for household appliances.
FR2635040A1 (en) Device for chamfering framing elements or the like

Legal Events

Date Code Title Description
ST Notification of lapse