FR2746884A1 - Flexible drive two=way chain unit for jack - Google Patents
Flexible drive two=way chain unit for jack Download PDFInfo
- Publication number
- FR2746884A1 FR2746884A1 FR9604050A FR9604050A FR2746884A1 FR 2746884 A1 FR2746884 A1 FR 2746884A1 FR 9604050 A FR9604050 A FR 9604050A FR 9604050 A FR9604050 A FR 9604050A FR 2746884 A1 FR2746884 A1 FR 2746884A1
- Authority
- FR
- France
- Prior art keywords
- rods
- chain
- flexible drive
- drive
- cylinder 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
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
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
-
- 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
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
- F16H19/0663—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member with telescopic means, e.g. for supporting or shielding the reciprocating member
-
- 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
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
- F16H2019/0681—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member the flexible member forming a closed loop
- F16H2019/0686—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member the flexible member forming a closed loop the flexible member being directly driven by a pulley or chain wheel
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
Description
L'invention concerne un vérin double effet à organe souple d'entraînement et notamment, un vérin à chaine. The invention relates to a double-acting cylinder with flexible drive member and in particular, a chain cylinder.
On connaît de nombreux types de vérins hydrauliques, pneumatiques ou encore à vis sans fin. Many types of hydraulic, pneumatic or even worm cylinders are known.
Toutefois, pour notamment résoudre certains problèmes d'encombrement, de sécurité et de source d'énergie, l'invention propose un nouveau type de vérin tout à fait original, comportant un corps tubulaire dans lequel est montée au moins une tige qui est mue en translation par un système d'entratnement, de manière à pouvoir s'étendre hors du corps ou se rétracter en traversant un palier aménagé à l'ex- trémité dudit corps et qui est notamment remarquable en ce que le système d'entratnement comporte un moyen moteur destiné à entraîner dans les deux sens un organe souple continu d'entratnement, tendu dans le corps entre au moins deux axes, de manière à présenter deux brins mûs dans des sens opposés et longitudinalement dans ledit corps, tandis que la tige est fixée à l'un des brins pour en être solidaire en translation. However, in order in particular to solve certain problems of space, safety and energy source, the invention proposes a completely new type of jack, comprising a tubular body in which is mounted at least one rod which is moved in translation by a drive system, so as to be able to extend out of the body or retract by crossing a bearing arranged at the end of said body and which is particularly remarkable in that the drive system comprises a means motor intended to drive in both directions a flexible continuous drive member, stretched in the body between at least two axes, so as to present two strands mated in opposite directions and longitudinally in said body, while the rod is fixed to one of the strands to be integral in translation.
On aurait pu bien sûr imaginer un système comportant comme élément mobile un tube coulissant de manière télescopique dans le corps, mais dans ce cas, il aurait fallu prévoir des lumières dans ledit tube pour le passage d'au moins un axe de l'élément souple1 ce qui présente des inconvénients (salissures, risques de coincement,
Pour entre autre réaliser un vérin bloqué en rotation et assurer un bon guidage des éléments mobiles, un mode de réalisation est remarquable en ce que le corps tubulaire est prismatique et qutil y a au moins deux tiges fixées l'une à l'autre, dont au moins l'une est aménagée pour coulisser au voisinage de l'un des angles dièdres dudit corps.We could of course have imagined a system comprising as a mobile element a tube telescopically sliding in the body, but in this case, it would have been necessary to provide lights in said tube for the passage of at least one axis of the flexible element1 which has disadvantages (dirt, risk of jamming,
In order to, inter alia, produce a jack locked in rotation and ensure good guidance of the mobile elements, an embodiment is remarkable in that the tubular body is prismatic and that there are at least two rods fixed to one another, of which at least one is arranged to slide in the vicinity of one of the dihedral angles of said body.
Selon un mode de réalisation préféré dans ce cas, la section du corps est rectangulaire et en particulier carrée et les deux tiges sont disposées de manière à coulisser au voisinage de deux angles diagonalement opposés du corps. According to a preferred embodiment in this case, the section of the body is rectangular and in particular square and the two rods are arranged so as to slide in the vicinity of two diagonally opposite angles of the body.
Les tiges sont, par exemple, fixées entre elles par une pièce de forme semblable à celle de la section du corps et donc, pour ce dernier cas, de forme rectangulaire. The rods are, for example, fixed together by a piece of shape similar to that of the body section and therefore, for the latter case, of rectangular shape.
Avantageusement, l'organe souple d'entrainement est une chaîne tendue entre deux pignons dont au moins l'un est moteur. Advantageously, the flexible drive member is a chain stretched between two sprockets, at least one of which is motor.
I1 pourrait toutefois s'agir d'une courroie ou autre. It could however be a belt or the like.
De préférence, le moyen moteur est un motoréducteur électrique qui est disposé à l'extérieur du corps et qui est relié à l'organe souple d'entrainement par un système de transmission formant réducteur, le système de transmission étant, par exemple, un système d'engrenage. Preferably, the drive means is an electric gearmotor which is arranged outside the body and which is connected to the flexible drive member by a transmission system forming a reducer, the transmission system being, for example, a system gear.
L'invention sera bien comprise et d'autres particularités apparaîtront à la lecture de la description qui va suivre et qui se réfère aux dessins annexés dans lesquels:
- la figure 1 montre en élévation un vérin selon l'invention,
en extension,
- la figure 2 montre le vérin de la figure 1 en position
retractée,
- la figure 3 correspond à la figure 2, mais en vue de dessus,
- la figure 4 est une coupe longitudinale du vérin dans sa
position de la figure 2, à plus grande échelle,
- la figure 5 est une coupe longitudinale du même type que la
figure 4, mais en vue de dessous, c'est-à-dire opposée à la
position de la figure 3,
- la figure 6 est une coupe selon VI-VI de la figure 4,
- la figure 7 est une perspective avec arrachement, du vérin
des figures précédentes.The invention will be clearly understood and other particularities will appear on reading the description which follows and which refers to the appended drawings in which:
FIG. 1 shows in elevation a jack according to the invention,
in extension,
- Figure 2 shows the cylinder of Figure 1 in position
retracted,
FIG. 3 corresponds to FIG. 2, but in top view,
- Figure 4 is a longitudinal section of the cylinder in its
position of FIG. 2, on a larger scale,
- Figure 5 is a longitudinal section of the same type as the
Figure 4, but in bottom view, that is to say opposite the
position of Figure 3,
FIG. 6 is a section on VI-VI of FIG. 4,
- Figure 7 is a cutaway perspective of the cylinder
of the previous figures.
Le vérin selon l'invention comporte un corps tubulaire 1, ici de section carrée, dans lequel sont aménagées deux tiges 2 et 2' destinées à faire saillie du corps 1 entre une position complètement rétractée (figures 2 à 5) et une position en extension (figure 1). The jack according to the invention comprises a tubular body 1, here of square section, in which are arranged two rods 2 and 2 'intended to protrude from the body 1 between a fully retracted position (Figures 2 to 5) and an extended position (figure 1).
Les tiges traversent à cet effet un palier de vérin 3 aménagé à l'extrémité du corps 1. The rods for this purpose pass through a jack bearing 3 arranged at the end of the body 1.
Les tiges 2, 2' sont mues par une channe continue 4, ctest-à- dire fermée (ici du type chaine à rouleaux), qui est disposée dans le corps 1, comme le montrent les dessins, tendue entre deux pignons 5 et 6 disposés au voisinage des deux extrémités du corps 1. Les axes des pignons 5 et 6 sont perpendiculaires à deux faces opposées du corps 1, de telle sorte que la chalande 4 se déplace dans un plan parallèle auxdites faces. The rods 2, 2 'are moved by a continuous chain 4, that is to say closed (here of the roller chain type), which is disposed in the body 1, as shown in the drawings, stretched between two pinions 5 and 6 arranged in the vicinity of the two ends of the body 1. The axes of the pinions 5 and 6 are perpendicular to two opposite faces of the body 1, so that the barge 4 moves in a plane parallel to said faces.
Le pignon 5 est entraîné en rotation dans les deux sens par un motoréducteur électrique 7, aménagé à l'extérieur du corps 1 pour entrainer ledit pignon 5 par l'intermédiaire d'un système d'engrenage formant ici un réducteur et comportant notamment un pignon 8 qui s'engrène avec une roue de plus grand diamètre 9, laquelle est solidaire en rotation dudit pignon 5. The pinion 5 is rotated in both directions by an electric geared motor 7, arranged outside the body 1 to drive said pinion 5 by means of a gear system here forming a reduction gear and comprising in particular a pinion 8 which meshes with a wheel of larger diameter 9, which is integral in rotation with said pinion 5.
Le pignon 6 est, par exemple, monté sur un axe maintenu par un étrier 10 (figures 4, 5 et 7) combiné avec un tendeur de channe 11 (figures 4, 5). The pinion 6 is, for example, mounted on an axis maintained by a stirrup 10 (Figures 4, 5 and 7) combined with a chain tensioner 11 (Figures 4, 5).
Les tiges 2 et 2' sont fixées entre elles par une pièce de liaison 12, plus particulièrement visible sur la figure 7, formant ici un carré, de façon telle que les tiges soient disposées dans deux angles diagonalement opposés du corps, comme le montrent bien les figures 6 et 7. The rods 2 and 2 'are fixed to each other by a connecting piece 12, more particularly visible in FIG. 7, here forming a square, so that the rods are arranged in two diagonally opposite angles of the body, as well shown Figures 6 and 7.
En outre, au moins l'une des tiges, ici la tige 2, est fixée à l'un des brins de la channe 4 par une pièce 13, par exemple solidaire de la pièce 12 (figures 4 à 7). In addition, at least one of the rods, here the rod 2, is fixed to one of the strands of the chain 4 by a part 13, for example integral with the part 12 (Figures 4 to 7).
De la sorte, on comprend que l'entratnement de la channe 4 dans un sens ou dans l'autre par le motoréducteur 7 assure, via les pièces 13 et 12, le coulissement des tiges 2 et 2' dans le sens du mouvement du brin de la chaine 4, sur lequel la pièce 13 est fixée, c' est-à-dire l'extension desdites tiges (figure 1) ou leur rétraction (figures 2 à 5) dans le corps 1. In this way, it is understood that the drive of the chain 4 in one direction or the other by the geared motor 7 ensures, via the parts 13 and 12, the sliding of the rods 2 and 2 'in the direction of movement of the strand of the chain 4, on which the part 13 is fixed, that is to say the extension of said rods (Figure 1) or their retraction (Figures 2 to 5) in the body 1.
L'utilisation de deux tiges 2, 2' permet entre autre d'assurer un blocage en rotation et un bon équilibre, les extrémités libres des tiges étant, par exemple, pourvues d'un embout 14 prévu en conséquence selon les applications. The use of two rods 2, 2 'makes it possible, inter alia, to ensure a blocking in rotation and a good balance, the free ends of the rods being, for example, provided with a nozzle 14 provided accordingly according to the applications.
Dans le mode de réalisation représenté, l'embout 14 est muni d'un ajour dans lequel peut, par exemple, venir pivoter un axe. In the embodiment shown, the end piece 14 is provided with an aperture in which can, for example, pivot an axis.
La disposition des tiges 2, 2' dans les angles assure un excellent guidage et un bon maintien de celles-ci au cours de leur coulissement, mais permet aussi de dégager toute la partie centrale nécessaire pour la chatne 4 et ses pièces d'entrainement. The arrangement of the rods 2, 2 ′ in the corners ensures excellent guidance and good maintenance thereof during their sliding, but also allows to release all the central part necessary for the catne 4 and its drive parts.
On comprend en outre que le vérin selon l'invention peut être actionné par tout type de moteur, même à courant continu (en 12 volts par exemple), c'est-à-dire par une batterie classique d'accumulateurs et qu'en outre, le corps 1 est entièrement fermé et que seules les tiges lisses font saillie. It is further understood that the jack according to the invention can be actuated by any type of motor, even direct current (in 12 volts for example), that is to say by a conventional storage battery and that furthermore, the body 1 is completely closed and only the smooth rods protrude.
De la sorte, on peut, par exemple, utiliser un tel vérin en toute sécurité, notamment dans le domaine de la literie ou pour actionner des sièges articulés, domaines dans lesquels, pour des raisons de sécurité et/ou de mobilité des objets à équiper, il peut être avantageux, voire nécessaire, d'utiliser une source d'énergie du type batterie d'accumulateurs. In this way, it is possible, for example, to use such an actuator in complete safety, in particular in the field of bedding or for actuating articulated seats, areas in which, for safety and / or mobility reasons, the objects to be equipped , it may be advantageous, even necessary, to use an energy source of the storage battery type.
Bien des variantes peuvent naturellement être prévues. Many variations can naturally be expected.
C'est ainsi par exemple, que l'on peut bien sûr facilement imaginer l'utilisation d'un nombre différent de tiges (et par exemple quatre, un dans chaque angle), que le corps peut présenter une section autre que carrée (rectangle quelconque ou autrement), que la chaine 4 peut, dans certains cas, être remplacée par une courroie crantée ou similaire, les pignons 5 et 6 étant adaptés en conséquence, etc. It is thus for example, that one can of course easily imagine the use of a different number of rods (and for example four, one in each angle), that the body can have a section other than square (rectangle whatever or otherwise), that the chain 4 can, in certain cases, be replaced by a toothed belt or the like, the sprockets 5 and 6 being adapted accordingly, etc.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9604050A FR2746884B1 (en) | 1996-04-01 | 1996-04-01 | DOUBLE ACTING CYLINDER WITH FLEXIBLE DRIVE MEMBER |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9604050A FR2746884B1 (en) | 1996-04-01 | 1996-04-01 | DOUBLE ACTING CYLINDER WITH FLEXIBLE DRIVE MEMBER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2746884A1 true FR2746884A1 (en) | 1997-10-03 |
| FR2746884B1 FR2746884B1 (en) | 1998-05-22 |
Family
ID=9490770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9604050A Expired - Fee Related FR2746884B1 (en) | 1996-04-01 | 1996-04-01 | DOUBLE ACTING CYLINDER WITH FLEXIBLE DRIVE MEMBER |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2746884B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016137918A1 (en) * | 2015-02-23 | 2016-09-01 | Tolomatic, Inc. | High speed rod-style linear actuator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1102150A (en) * | 1954-03-31 | 1955-10-17 | Method and mechanical device for transforming a continuous circular motion into reciprocating rectilinear motion, and various applications, in particular to reciprocating saws and chainsaws | |
| WO1983000829A1 (en) * | 1981-09-01 | 1983-03-17 | Tachikawa, Keiichi | Controller for feed of various automatic machines |
| EP0162343A1 (en) * | 1984-05-07 | 1985-11-27 | Jan Ekman | A device of the kind comprising two telescopically coordinated members |
-
1996
- 1996-04-01 FR FR9604050A patent/FR2746884B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1102150A (en) * | 1954-03-31 | 1955-10-17 | Method and mechanical device for transforming a continuous circular motion into reciprocating rectilinear motion, and various applications, in particular to reciprocating saws and chainsaws | |
| WO1983000829A1 (en) * | 1981-09-01 | 1983-03-17 | Tachikawa, Keiichi | Controller for feed of various automatic machines |
| EP0162343A1 (en) * | 1984-05-07 | 1985-11-27 | Jan Ekman | A device of the kind comprising two telescopically coordinated members |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016137918A1 (en) * | 2015-02-23 | 2016-09-01 | Tolomatic, Inc. | High speed rod-style linear actuator |
| US20180045284A1 (en) * | 2015-02-23 | 2018-02-15 | Tolomatic, Inc. | High speed rod-style linear actuator |
| EP3262320B1 (en) | 2015-02-23 | 2020-04-15 | Tolomatic, Inc. | High speed rod-style linear actuator |
| US10883578B2 (en) | 2015-02-23 | 2021-01-05 | Tolomatic, Inc. | High speed rod-style linear actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2746884B1 (en) | 1998-05-22 |
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