FR2462047A1 - Windscreen wiper motor - has housing rolled from sheet blank after punching out openings for setting clamping plates - Google Patents
Windscreen wiper motor - has housing rolled from sheet blank after punching out openings for setting clamping plates Download PDFInfo
- Publication number
- FR2462047A1 FR2462047A1 FR8012792A FR8012792A FR2462047A1 FR 2462047 A1 FR2462047 A1 FR 2462047A1 FR 8012792 A FR8012792 A FR 8012792A FR 8012792 A FR8012792 A FR 8012792A FR 2462047 A1 FR2462047 A1 FR 2462047A1
- Authority
- FR
- France
- Prior art keywords
- recesses
- carcass
- fixing plates
- polar
- electric motor
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/15—Mounting arrangements for bearing-shields or end plates
Abstract
Description
L'invention concerne un petit moteur électrique, en particulier moteur pour essuie-glace, possedant une carcasse polaire cylindrique et des plaques de fixation, garnies de trous filetés, pénétrant d'une manière radiale dans des évidements aménagés dans la carcasse radiale, ces plaques servant à la fixation d'un chapeau de palier ou d'un carter de transmission rattaché à la carcasse polaire. The invention relates to a small electric motor, in particular motor for windscreen wiper, having a cylindrical polar carcass and fixing plates, provided with threaded holes, penetrating in a radial manner in recesses arranged in the radial carcass, these plates used for fixing a bearing cap or a transmission casing attached to the polar casing.
On connaît déjà des petits moteurs électriques de ce genre, à partir du brevet des Etats-Unis n0 2 722 618, dans le cas desquels on utilise des plaques de fixation amovibles pour l'assemblage entre la carcasse polaire (stator) du moteur et les chapeaux de paliers. Ces plaques de fixation amovibles forment des pièces susceptibles de se perdre, qui tombent à l'intérieur pendant le montage, au risque de créer des détériorations. Les ouvertures aménagées dans la carcasse polaire et dans lesquelles s'accrochent les plaques de fixation ne sont pas étanchées, même contre les projections d'eau. Enfin, le montage du petit moteur électrique est endu plus difficile du fait que les plaques de fixation doivent être mises en place pendant le montage. Cette opération exige un grand doigté, au moins jusqu'au moment où la vis s'accroche au filetage de la plaque de fixation. Small electric motors of this kind are already known, from United States patent no. 2,722,618, in the case of which removable fixing plates are used for the assembly between the polar carcass (stator) of the motor and the bearing caps. These removable fixing plates form parts liable to get lost, which fall inside during assembly, at the risk of creating damage. The openings in the polar frame and in which the fixing plates hang are not sealed, even against splashing water. Finally, the mounting of the small electric motor is more difficult due to the fact that the fixing plates must be put in place during mounting. This operation requires great skill, at least until the screw hooks onto the thread of the fixing plate.
Le petit moteur électrique selon l'invention présente par rapport aux moteurs de l'état actuel de la technique, l'avantage selon lequel l'assemblage de la carcasse polaire et des plaques de fixation peut être réalisé avant le montage, pour un effort minimal du point de vue de la fabrication. Les plaques de fixation et la carcasse polaire du petit moteur électrique sont ainsi fermement assemblées avec une excellente étanchéité au niveau des évidements aménagés dans la carcasse polaire, grâce aux plaques de fixation, le montage du petit moteur électrique, avec cette carcasse polaire préparée à l'avance, est moins difficile et dure beaucoup moins de temps. The small electric motor according to the invention has, compared to the motors of the current state of the art, the advantage that the assembly of the polar carcass and the fixing plates can be carried out before assembly, for minimal effort. from a manufacturing perspective. The fixing plates and the polar carcass of the small electric motor are thus firmly assembled with an excellent seal at the recesses arranged in the polar carcass, thanks to the fixing plates, the mounting of the small electric motor, with this polar carcass prepared for the advance, is less difficult and lasts much less time.
D'autres réalisations et améliorations du petit moteur électrique selon l'invention sont possibles grâce à d'autres caractéristiques de l'invention. Il est particulièrement avantageux de former les plaques de fixation en tant que pièces estampées , leur épaisseur correspondant au diamètre des évidements se trouvant dans le sens de l'axe longitudinal du moteur, ces plaques de fixation ayant des bords formant des saillies en forme de dents, et pouvant s'enfoncer dans les évidements formés lors du roulage de la carcasse polaire. Other embodiments and improvements of the small electric motor according to the invention are possible thanks to other characteristics of the invention. It is particularly advantageous to form the fixing plates as stamped parts, their thickness corresponding to the diameter of the recesses lying in the direction of the longitudinal axis of the motor, these fixing plates having edges forming tooth-shaped protrusions. , and which can sink into the recesses formed during the rolling of the polar carcass.
Cette forme des plaques de fixation peut, sans difficulté, être choisie d'une façon qu'un grand.nombre de plaques soient disposées les unes contre les autres sur une bande continue, à partir de laquelle elles peuvent tre découpées sans chute, et au moyen d'un outil progressif simple ( à l'exception des avant-trous de taraudage).This form of the fixing plates can, without difficulty, be chosen so that a large number of plates are placed one against the other on a continuous strip, from which they can be cut without falling, and at by means of a simple progressive tool (except for the tapping pilot holes).
L'invention sera mieux comprise en regard de la description ci-après et des dessins annexés, qui représentent des exemples de réalisation de l'invention, dessins dans lesquels
- la figure 1 présente en perspective une carcasse polaire garnie de deux plaques de fixation
- la figure 2 est une représentation de détail, agrandie, d'une plaque de fixation selon la figure 1
- la figure 3 est une coupe partielle de ltenveloppe de la carcasse polaire, avec un évidement destiné à une plaque de fixation avant le roulage de la carcasse polaire
- la figure 4 est une coupe partielle selon la figure 3, mais après le roulage de la#arcasse polaire
- la figure 5 est une coupe A-A selon la figure 1, et représente une plaque de fixation insérée dans un évidement de la carcasse polaire et correspondant à la réalisation de la figure 2
- la figure 6 est une coupe simplifiée de l'outil progressif destiné à fabriquer les plaques de fixation selon la figure 2
- la figure 7 présente une deuxième réalisation des plaques de fixation, simplement enfoncées dans les évidements correspondants de la carcasse polaire
- la figure 8 présente une troisième réalisation des plaques de fixation, analogue à celle de la figure 7, mais avec deux bords recourbés.The invention will be better understood with reference to the description below and the appended drawings, which represent exemplary embodiments of the invention, drawings in which
- Figure 1 shows in perspective a polar carcass furnished with two fixing plates
- Figure 2 is an enlarged detail representation of a fixing plate according to Figure 1
- Figure 3 is a partial section of the envelope of the polar carcass, with a recess for a fixing plate before the rolling of the polar carcass
- Figure 4 is a partial section according to Figure 3, but after rolling the # polar arch
- Figure 5 is a section AA according to Figure 1, and shows a fixing plate inserted in a recess of the polar carcass and corresponding to the embodiment of Figure 2
- Figure 6 is a simplified section of the progressive tool for manufacturing the fixing plates according to Figure 2
- Figure 7 shows a second embodiment of the fixing plates, simply inserted into the corresponding recesses of the polar carcass
- Figure 8 shows a third embodiment of the fixing plates, similar to that of Figure 7, but with two curved edges.
Par référence au dessin, une carcasse polaire 1 est formée à partir d'une enveloppe de tôle dans laquelle, la tale étant encore à plat, on a découpé des évidements 2 destinés aux plaques de fixation (figure 3). Lors du roulage de la carcasse polaire 1 à partir de cette tale, les évidements 2 ont été déformés pour donner les évidements 3 (figure 4). Les plaques de fixation selon les figures 2, 7 et 8 peuvent entre insérées dans ces évidements 3. Dans la représentation selon la figure 5, une plaque de fixation 4 ayant la forme correspondant à la figure 2 est insérée et fixée en position dans l'évidement 3. La courbure des bords recourbés 5 et 6 de la plaque de fixation 4 est déterminée par un rayon r correspondant à environ 103 % du rayon du rotor destiné à tre installé dans la carcasse polaire.Des saillies 7 et 8, en forme de dents et formées à partir de la plaque de fixation 4, sont insérées dans l'évidement 3. La fabrication des plaques de fixation est mise en évidence sur l'exemple de la plaque de fixation 4 de la figure 6. On effectue un pré-découpage des avant-trous de taraudage dans une bande d'acier 9. Ces avant-trous peuvent ensuite être filetés, ce qui forme les trous taraudés 10. Indépendamment de cette méthode, il est possible de ne tailler le filetage qu'après le montage, à l'aide de vis auto-taraudeuses. Grâce à un guide 11 possédant un tenon de positionnement 12, la bande d'acier 9 est amenée à un outil de découpage 13. C'est à l'aide de cet outil de découpage 13 que les différentes plaques de fixation 4 sont découpées sans chutes. With reference to the drawing, a polar carcass 1 is formed from a sheet metal casing in which, the sheet being still flat, recesses 2 have been cut out for the fixing plates (FIG. 3). During the rolling of the polar carcass 1 from this tale, the recesses 2 were deformed to give the recesses 3 (FIG. 4). The fixing plates according to FIGS. 2, 7 and 8 can between inserted in these recesses 3. In the representation according to FIG. 5, a fixing plate 4 having the shape corresponding to FIG. 2 is inserted and fixed in position in the recess 3. The curvature of the curved edges 5 and 6 of the fixing plate 4 is determined by a radius r corresponding to approximately 103% of the radius of the rotor intended to be installed in the polar carcass. Projections 7 and 8, in the form of teeth and formed from the fixing plate 4, are inserted into the recess 3. The manufacture of the fixing plates is highlighted on the example of the fixing plate 4 of FIG. 6. A pre- cutting the pilot holes in a steel strip 9. These pilot holes can then be threaded, which forms the threaded holes 10. Regardless of this method, it is possible to cut the thread only after assembly , using self-tapping screws. Thanks to a guide 11 having a positioning lug 12, the steel strip 9 is brought to a cutting tool 13. It is with the aid of this cutting tool 13 that the various fixing plates 4 are cut without falls.
On peut fabriquer de la m#me manière rationnelle, et sans chute, des plaques de fixation 14 ayant la forme selon la figure 7. Ces plaques sont simplement enfoncées dans l'évidement 3 à partir de l'extérieur. Elles ont la forme d'un coin, adapté à la forme en coin de l'évidement 3. Il n'est pas ici nécessaire d'effectuer une frappe après coup. It is possible to manufacture in the same way rationally, and without falling, fixing plates 14 having the form according to FIG. 7. These plates are simply inserted into the recess 3 from the outside. They have the shape of a wedge, adapted to the wedge shape of the recess 3. It is not necessary here to make an after-the-fact strike.
Avec la plaque de fixation 15 ayant la forme selon la figure 8, il est possible de réaliser le même assemblage entre la carcasse polaire et la plaque de fixation 15 qu'entre la carcasse polaire et la plaque de fixation 14. Grâce à la forme recourbée des bords 16 et 17, on atteint une adaptation, à la surface latérale de la carcasse polaire, meilleure qu'avec la réalisation de la plaque de fixation 14 selon la figure 7. With the fixing plate 15 having the shape according to FIG. 8, it is possible to make the same assembly between the polar carcass and the fixing plate 15 as between the polar carcass and the fixing plate 14. Thanks to the curved shape edges 16 and 17, an adaptation to the lateral surface of the polar carcass is achieved which is better than with the production of the fixing plate 14 according to FIG. 7.
Cette méthode présente cependant l'inconvénient que les plaques de fixation de cette forme ne peuvent tre fabriquées sans chutes.However, this method has the disadvantage that the fixing plates of this shape cannot be produced without falling.
On peut effectuer plus facilement et plus vite le montage d'une carcasse polaire 1 garnie de plaques de fixation 4, 14 ou 15 par la méthode décrite ci-dessus, sur un petit moteur électrique. Ce montage conduit à une sécurité plus grande vis-à-vis d'une détérioration des différentes pièces du moteur. It is easier and quicker to mount a polar carcass 1 provided with fixing plates 4, 14 or 15 by the method described above, on a small electric motor. This assembly leads to greater safety against deterioration of the various parts of the engine.
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792928576 DE2928576A1 (en) | 1979-07-14 | 1979-07-14 | SMALL ELECTRIC MOTOR, IN PARTICULAR WIPER MOTOR |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2462047A1 true FR2462047A1 (en) | 1981-02-06 |
Family
ID=6075781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8012792A Withdrawn FR2462047A1 (en) | 1979-07-14 | 1980-06-09 | Windscreen wiper motor - has housing rolled from sheet blank after punching out openings for setting clamping plates |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5619352A (en) |
DE (1) | DE2928576A1 (en) |
FR (1) | FR2462047A1 (en) |
IT (1) | IT1131872B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0082375A2 (en) * | 1981-12-21 | 1983-06-29 | Siemens Aktiengesellschaft | Geared motor, in particular an electromotive window-lifting drive |
DE4138706A1 (en) * | 1991-11-26 | 1993-05-27 | Licentia Gmbh | HOUSING, ESPECIALLY FOR ELECTRICAL SMALL MACHINES |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8128186U1 (en) * | 1981-09-25 | 1982-06-16 | Siemens AG, 1000 Berlin und 8000 München | TRANSMISSION MOTOR, ESPECIALLY ELECTRIC MOTOR WINDOW REGULATOR DRIVE FOR MOTOR VEHICLES |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2722618A (en) * | 1952-07-08 | 1955-11-01 | Gen Electric | Dynamoelectric machine |
GB1435017A (en) * | 1972-07-25 | 1976-05-12 | Bosch Gmbh Robert | Methods of producing electric motor housings radio interference suppression devices |
-
1979
- 1979-07-14 DE DE19792928576 patent/DE2928576A1/en not_active Withdrawn
-
1980
- 1980-06-09 FR FR8012792A patent/FR2462047A1/en not_active Withdrawn
- 1980-06-30 IT IT23130/80A patent/IT1131872B/en active
- 1980-07-11 JP JP9407080A patent/JPS5619352A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2722618A (en) * | 1952-07-08 | 1955-11-01 | Gen Electric | Dynamoelectric machine |
GB1435017A (en) * | 1972-07-25 | 1976-05-12 | Bosch Gmbh Robert | Methods of producing electric motor housings radio interference suppression devices |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0082375A2 (en) * | 1981-12-21 | 1983-06-29 | Siemens Aktiengesellschaft | Geared motor, in particular an electromotive window-lifting drive |
EP0082375A3 (en) * | 1981-12-21 | 1984-07-18 | Siemens Aktiengesellschaft | Geared motor, in particular an electromotive window-lifting drive |
DE4138706A1 (en) * | 1991-11-26 | 1993-05-27 | Licentia Gmbh | HOUSING, ESPECIALLY FOR ELECTRICAL SMALL MACHINES |
Also Published As
Publication number | Publication date |
---|---|
DE2928576A1 (en) | 1981-02-05 |
IT8023130A0 (en) | 1980-06-30 |
JPS5619352A (en) | 1981-02-24 |
IT1131872B (en) | 1986-06-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |