FR2629044A1 - Winding mechanism for boat mainsail - has rotary winding roller housed in boom casing on static axle, with mechanism longitudinal movement concurrent with winding - Google Patents

Abstract

A fixed rigid axle (1) is secured between two ends places (2,3), one of which has a mast-engaging universal bearing (18). A roller tube (4) is mounted for rotation around the axle by means of bearings (15) and a helical ball race (19). The ball race cooperates with a threaded part (17) of the axle to form a winding stop mechanism. A telescopic drive member (5), supported by bearings (16,20), transfers rotary drive from a cable-operated pulley (6) to the roller. An outer casing (13) with a longitudinal sail access slot surrounds the mechanism. USE/ADVANTAGE - Combines functions of sail winding mechanism and boom. (11pp Dwg.No.1,2/4)

Description

() FRENCH REPUBLIC Publication no .: 2,629,044 (to be used only for

  the NATIONAL INSTITUTE reproduction orders)

INDUSTRIAL PROPERTY

  National registration number 88 04 159 PARIS

(f Int Ci4: B 63 H 9/10.

@ A1 PATENT APPLICATION

  ) Date of filing: March 28, 1988. IQ Applicant (s): MAILLARD Michel. - FR.

) Priority

(Inventor (s) Michel Maillard.

  4 Date of public availability of the

  application: BOPI "Patents" n 39 of September 29, 1989.

  - References to other national documents -appa-

  rentés: rné Holder (s): _ Agent (s) Rigid mainsail furler. The rigid mainsail furler, according to the invention, is characterized in that it consists of a rigid stationary axle 1 held axially by two flanges 2 and 3 of 7 6 which turns freely, by l 'intermediate bearings and a (S7 ball screw 4, a winding tube 5 driven by a pulley 6, / _ provided with a clutch and secured to a telescopic sleeve 7. A rigid storage housing 8. fixed on the two flanges 2

  and 3, allows total protection of the rolled mainsail.

  I de O O1 N ILL Sale of booklets to rl'MPRIMERIE NATIONALE, 27. rue de la Convention - 75732 PARIS CEDEX 15 The present invention relates to a rigid reel which allows the winding and storage of the

  mainsail while removing the boom.

  The current mainsail furlers are divided into two categories, either they are located in the mast and wind the mainsail on its luff, or they are located on the boom and wind the mainsail

on its border.

  Currently, mainsail furlers have several drawbacks. Their constructions always require the maintenance of the boom, or any other rigid profile replacing it, on which a reel is fixed. In all these mechanisms implemented, the

  boom is kept so as to make the reel rigid.

  A flexible or rigid magazine is generally attached to the

  boom on the one hand and around the reel on the other.

  The object of the present invention is to overcome all the drawbacks of mainsail furlers on the boom and to make it more rigid and above all more mechanical.

  the winding and storage of the mainsail.

  Rigid mainsail furler, next

  the invention is composed of a rigid rigid stationary axis

  pair of two rigid flanges; a rigid front flange supporting the patella of the gooseneck and a rigid rear flange on which is fixed the swing which

is struck at the head of the mast.

  On the rigid stationary axis the tube rotates axially

  mainsail furler via bearings.

  A ball screw, subject of the French patent application

  n 87 14570 allows the reel to move for a long time

  tudinal. The rotation of the reel is ensured by a telescopic drive sleeve which rotates freely by means of bearings on the rigid stationary axis and on which is fixed integral, at the end opposite to the

  mast, a drive pulley provided with a clutch.

  In order to allow total protection of the rolled mainsail, a rigid casing is fixed parallel to the roller on the two flanges. The rigid casing is composed of a constant profile made of rigid material comprising on its lower face a groove. On this profile are fixed, on request and depending on the diameter of the reel, two rigid material profiles. In another embodiment, the storage casing can be made up of

  folded sheets of rigid material. The training drosses

  the pulley are guided inside the housing

rigid storage by sheaves.

  Other characteristics of the invention appear

  will derive from the above description with reference to

  attached drawings: Fig. 1 shows an exploded view of the front of the rigid mainsail furler, on the mule side;

  Fig. 2 shows an exploded view of the rear

  of the rigid mainsail furler, swing side

  cinema; Fig. 3 shows a section through the rigid mainsail furler. According to the Figs. 1 and 2, the rigid mainsail furler

  consists of the rigid immobile axis 1, integral axia-

  front 2 and rear 3 flanges, on which

the storage housing 13 is fixed.

  According to FIG. 1, the rigid stationary axis 1 is maintained

  axially on the front flange 2 by the ball-joint of the vit-

  de-mule 18. In another embodiment, the rigid stationary axis 1 is held axially on the front flange 2 by means of a screw. The front flange 2

  has bosses allowing its adaptation to the vit-

  de-mules existing. A screw 17 secured to the rigid stationary axis 1 allows the longitudinal displacement of the winding tube 4 by means of a ball nut 19 which is integral with it. This mechanical movement is the subject

  from French patent application no 87 14570.

  According to Figs. 1 and 2, the winding tube 4 moves freely in rotation on the rigid stationary axis 1 by means of bearings 15. Its rotational drive

  is provided by the telescopic sleeve 5 of square section.

  According to FIG. 2, and in accordance with the invention, the drive pulley 6 is integral with the drive sleeve

  telescopic 5, square section. The pulley assembly-

  sleeve rotates freely by means of bearings 16 on the rigid stationary axis 1 and rotates the

  take-up tube 4 via its solid bearing

  Daire 20 with square section bore. The drive pulley

  ment 6, provided with a clutch 7 allows a back and forth movement of the drive drosses and reduces the

length.

  According to Figs. 1 and 2, the training drosses are

  supported and guided by sheaves 11 and 12 fixed to the

  inside of the rigid storage housing 13.

  According to FIG. 3 and in accordance with the invention, the rigid storage casing 13 is composed of the rigid constant profile 8 provided in its lower part and in the longitudinal direction, with a groove 14 used for fixing the hoists and the listen. The rigid housing of

  storage 13 protects the rolled mainsail.

  On the other hand, it has two cheeks 9 and 10 with interchangeable profile, fixed on the constant profile and on the flanges 2 and 3, modifiable in their dimensions according to

rigid reel models.

  According to another embodiment, the rigid storage casing 13 may be formed from sheets of folded rigid material. In the two aforementioned embodiments, the. rigid storage housing is fixed on the two flanges

  2 and 3 in the longitudinal plane parallel to the tube in

roller 4.

  The rigid mainsail furler is intended for all boat sails and possibly. particularly recommended for sailboats over 9 meters, its rigidity

ensuring better resistance.

Claims (2)

  1 - Rigid mainsail furler characterized in that it consists of: a rigid stationary axis 1 held axially by two flanges 2 and 3; a front flange 2 capable of receiving the patella of the mullet or adapting to the existing mullet; a winding tube 4, movable in rotation on the rigid immobile axis 1 by means of bearings 15 and of a ball nut 19; a screw 17 secured to the rigid stationary axis 1 allowing the longitudinal displacement of the winding tube 4 by means of its ball nut 19; a telescopic drive sleeve 5   in rotation on the rigid stationary axis 1, through the   middle of stages 20 and 16; a pulley 6 for rotating   provided with a clutch 7, integral with the remote sleeve   copy 5; 20. a storage case 13 consisting of a constant profile 8 having a groove 14 on its lower part in the longitudinal direction, and two cheeks 9 and 10 having an interchangeable profile according to the models of rigid reels of large- sail; a storage case 13 made up of folded sheets of rigid material; sheaves 11 and 12 fixed inside the storage casing 13; 2 - Rigid mainsail furler according to claim 1, characterized in that a rigid stationary shaft 1 having a screw 17 is held axially and integrally between two opposite flanges 2 and 3; 3 - Rigid mainsail furler, according to   Claims 1 and 2, characterized in that the flange 2   can receive the patella of the gooseneck or adapt to the existing gooseneck; 4 - Rigid mainsail furler, according to   claims 1 and 2, characterized in that the tube   mainsail furler 4, having a ball nut 19,   rotates on the rigid stationary axis 1, moving for a long time   ultimately; - Rigid mainsail furler, according to   claim 1, characterized in that the coupling sleeve   telescopic undercarriage 5 rotates freely via the   middle of bearings 16 on the rigid immobile axis 1, and   rotates the winding tube 4 through the   middle of level 20; 6 - Rigid mainsail furler, according to   claims 1 and 4, characterized in that   pulley 6 provided with a clutch 7, is integral with the telescopic sleeve 5; 7 - Rigid mainsail furler according to claim 1, characterized in that the storage housing 13 consists of a constant profile of rigid material 8, having over its entire lower part, in the longitudinal direction, a groove 14 ; 8 - Rigid mainsail reel, according to   Claims 1 and 7, characterized in that the housing   storage unit 13 consists of two cheeks made of rigid material 9 and 10 having an interchangeable profile fixed to the constant profile; 9 Rigid mainsail furler, according to   claims 1, 7 and 8, characterized in that the   storage housing 13 is formed from folded sheets of rigid material; - 10 - Rigid mainsail furler, according to   claims 7, 8 and 9, characterized in that the   rigid storage casing 13 of the rolled mainsail is fixed to the two opposite end flanges 2 and 3; 11 - Rigid mainsail reel according to claim 1 characterized in that the sheaves 11 and 12 allowing the passage and the guiding of the drosses driving the pulley 6, are fixed inside the storage casing rigid 13. 4 5 1 - a 7 6 5 /) '\', 2 / Ir 18 21t917 * 4.1 1s (f _ .. 4- 20. 763 I I i i1- t I mmmm, m eI 10 l. 1-, g.