FR2550586A1 - Jack with articulation fork - Google Patents

Jack with articulation fork Download PDF

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Publication number
FR2550586A1
FR2550586A1 FR8313105A FR8313105A FR2550586A1 FR 2550586 A1 FR2550586 A1 FR 2550586A1 FR 8313105 A FR8313105 A FR 8313105A FR 8313105 A FR8313105 A FR 8313105A FR 2550586 A1 FR2550586 A1 FR 2550586A1
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FR
France
Prior art keywords
jack
support plate
articulation
longitudinal axis
axis
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
FR8313105A
Other languages
French (fr)
Other versions
FR2550586B1 (en
Inventor
Andre Rousselot
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.)
Somfy SA
Original Assignee
Somfy SA
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 Somfy SA filed Critical Somfy SA
Priority to FR8313105A priority Critical patent/FR2550586B1/en
Priority to CH3470/84A priority patent/CH657676A5/en
Priority to IT22140/84A priority patent/IT1176513B/en
Priority to DE19848422791U priority patent/DE8422791U1/en
Priority to IT8422767U priority patent/IT8422767V0/en
Priority to ZA846036A priority patent/ZA846036B/en
Priority to ES1984281001U priority patent/ES281001Y/en
Publication of FR2550586A1 publication Critical patent/FR2550586A1/en
Application granted granted Critical
Publication of FR2550586B1 publication Critical patent/FR2550586B1/en
Expired legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/50Power-operated mechanisms for wings using fluid-pressure actuators
    • E05F15/53Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hinges (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Automatic Assembly (AREA)
  • Basic Packing Technique (AREA)

Abstract

The invention concerns a jack 3 with asymmetric longitudinal sides, comprising an articulation fork 19. The fork 19 is part of a support base 20 firmly connected to the jack 3. This fork 19 is offset in the direction of 18 on its support plate 20, laterally with respect to the longitudinal axis 22 of the jack 3, transversely with respect to its own axis of articulation 8. According to an advantageous embodiment, the support plate 20 of the articulation fork 19 is mounted such that it pivots about a shaft 23 supported by the jack, and provided with retaining means constituted by a washer 26. The screws 21 constitute the means of fixing the support plate 20. These means of fixing are adapted to firmly connect the jack 3 to the support plate 20 in either one of two symmetrical positions provided.

Description

a preste invention concerne les vérin s présentant par rapport à leur axe longitudinal, une certaine dissymétrie susceptible d empêcher leur retournement de 180 autour de cet axe longitudinal, et comportant, à leur extrémité destinée à être articulée sur un support fixe, une chape d articulation faisant partie d'une plaque-support solidarisée de cette extrémité par des moyens de fixation. La dissymétrie du vérin peut résulter, par exemple, de la présence de câbles électriques sortant de l'un des côtés longitudinaux du vérin, cette sortie devant toujours s effectuer, pour des raisons d'étanchéité, sur un côté dirigé vers le bas. the invention relates to actuators having, relative to their longitudinal axis, a certain asymmetry capable of preventing them from turning 180 around this longitudinal axis, and comprising, at their end intended to be articulated on a fixed support, an articulation clevis forming part of a support plate secured to this end by fixing means. The asymmetry of the jack can result, for example, from the presence of electric cables coming out of one of the longitudinal sides of the jack, this outlet always having to be carried out, for sealing reasons, on a side directed downwards.

Dans des vérins connus de ce genre, tels que celui représenté schématiquement sur la figure 1, la chape d'articulation 1 est disposée au centre de sa plaque-support 2, suivant l'axe longitudinal du vérin 3. Une telle disposition est prévue notamment pour permettre d'utiliser le vérin, à volonté, suivant l'une ou l'autre de deux directions opposées sans qu il soit nécessaire, pour cela, d effectuer un retournement du vérin, de 180 au tour de son axe longitudinal, ce qui serait difficile ou impossible compte-tenu de sa dissymétrie. Une telle disposition présente cependant un inconvénient.En effet, compte tenu de la position, axiale, de la chape d'articulation 1, le support fixe 4 sur lequel il est prévu d'articuler en 8 cette chape, doit avoir une longueur suffisante pour que l'un des côtés de la plaque-support 2 ne vienne pas, lorsque la tige du vérin est sortie au maximum dans 1' une des positions extrêmes du vérin, buter contre le pilier de maçonnerie 5, par exemple, sur un côté duquel est scellé le support fixe 4. Dans cette position extrême, representée en traits pleins sur la figure 7, le vérin 3 maintient, par exemple, une porte 6 en position fermée.Lorsque la tige de vérin 3 est ramenée à sa longueur minimale, la porte 6 occupe la position ouverte représentée en traits pointillés sur la figure 7. Comme on le constate sur cette figure 1, le débattement de la porte 5 entre ses deux positions extrêmes, fermée et ouverte, dépend de la distance L existant entre l'axe d'articulation 7 de la porte 6 et l'axe d'articulation fixe 8 du verin 3. On constate également que cette distance L dépend pour une grande part de la distance l existant entre l'axe d'articulation 8 du vérin, et le côté du pilier 5, sur lequel est scelle le support fixe 4.C'est la position, axiale, de la chape d'articulation 3 qui empêche de réduire la distance 1, et empêche donc d'augmenter le débattement de la porte 6, ce qui est un inconvénient,
Le vérin, suivant la présente invention, est caractérisé en ce que la chape d'articulation est décalée sur sa plaque-support, latéralement par rapport à l'axe longitudinal du vérin, transversalement à son propre axe d'articulation, de façon à pouvoir occuper au choix, par retournement de la plaque-support de 180- dans un plan perpendiculaire à l'axe du vérin, l'une quelconque parmi deux positions symétriques par rapport audit axe longitudinal. Les moyens de fixation sont adaptés pour solidariser du vérin la plaque-support dans l'une quelconque des deux positions symétriques de cette dernière.
In known jacks of this kind, such as that shown diagrammatically in FIG. 1, the articulation yoke 1 is arranged in the center of its support plate 2, along the longitudinal axis of the jack 3. Such an arrangement is provided in particular to allow the actuator to be used, at will, in one or the other of two opposite directions without it being necessary, for this, to effect a reversal of the actuator, of 180 around its longitudinal axis, which would be difficult or impossible given its asymmetry. However, such an arrangement has a drawback. Indeed, taking into account the axial position of the articulation yoke 1, the fixed support 4 on which it is intended to articulate this yoke at 8, must have a sufficient length for that one of the sides of the support plate 2 does not come, when the rod of the jack is extended as far as possible in one of the extreme positions of the jack, abut against the masonry pillar 5, for example, on one side of which the fixed support 4 is sealed. In this extreme position, shown in solid lines in FIG. 7, the jack 3 maintains, for example, a door 6 in the closed position. When the jack rod 3 is reduced to its minimum length, the door 6 occupies the open position shown in dotted lines in FIG. 7. As can be seen in this FIG. 1, the clearance of door 5 between its two extreme positions, closed and open, depends on the distance L existing between the axis hinge 7 of door 6 and the axis of a fixed cross-link 8 of the jack 3. It can also be seen that this distance L largely depends on the distance l existing between the hinge pin 8 of the jack, and the side of the pillar 5, on which the fixed support 4 is sealed .It is the axial position of the hinge yoke 3 which prevents the distance 1 from being reduced, and therefore prevents the travel of the door 6 from being increased, which is a drawback,
The jack, according to the present invention, is characterized in that the articulation yoke is offset on its support plate, laterally with respect to the longitudinal axis of the jack, transversely to its own hinge axis, so as to be able occupy as desired, by turning the support plate 180- in a plane perpendicular to the cylinder axis, any one of two symmetrical positions with respect to said longitudinal axis. The fixing means are adapted to secure the support plate to the jack in any one of the two symmetrical positions of the latter.

Selon -une réalisation particulièrement avantageuse, la plaque-support est montée par exemple pivotante autour d'un arbre supporté par le vérin, a@bre dispose au moins approximativement suivant l'axe longitudinal du vérin et muni de moyen s de retenue de '.adi t e plaque- upport. de façon à ce que celle-ci puisse pivoter sur l'arbre pour occuper, après deblocage temporaire des moyens de fixation, 1 une ou l'autre de ses deux positions symétriques. According to a particularly advantageous embodiment, the support plate is mounted for example pivoting around a shaft supported by the jack, a @ bre has at least approximately along the longitudinal axis of the jack and provided with means s for retaining '. adi te support plate. so that it can pivot on the shaft to occupy, after temporary release of the fixing means, 1 one or the other of its two symmetrical positions.

La présente invention se propose de permettre la réalisation d'un vérin qui permette de commandeur le déplacement angulaire d'un élément osciliant tel qu'un battant de porte, en permettant à cet élément d'avoir, entre ses deux positions extrêmess un débattement supérieur å celui obtenu avec les vérins connus, de l'art antérieur, tout en étant susceptible d'être utilisé indifféremment our commander un battant dans l'un quelconque parmi deux sens opposés, à droite ou à gauche par exemple. The present invention proposes to allow the production of a cylinder which allows the controller the angular displacement of an oscillating element such as a door leaf, by allowing this element to have, between its two extremes positions a greater clearance å that obtained with the known cylinders, of the prior art, while being capable of being used indifferently to control a leaf in any one of two opposite directions, to the right or to the left for example.

Le dessin annexé illustre, à titre d'exemple, un mode de réalisation d'un vérin conforme à la présente invention. The appended drawing illustrates, by way of example, an embodiment of a jack in accordance with the present invention.

La figure 2 représente schématiquement, en vue de dessus, un tel vérin installé sur une porte qu il est destiné à actionner. Figure 2 shows schematically, in top view, such a cylinder installed on a door that it is intended to operate.

La figure 3 représente, en perspective et à plus grande échelle. L'extrémité du verin supportant la chape d'articulation. Figure 3 shows, in perspective and on a larger scale. The end of the jack supporting the articulation yoke.

Tel qu'il est représente notamment sur la figure 2, le vérin 3 comporte une première extrémité 3' destinée à âtre articulée sur un support fjxe 4 scellé ur un côté vertical 5' d'un pilier de maçonnerie 5. De la seconde extrémité 3' du vérin 3, opposée à la première 3', sort la tige 11 du vérin qui est prévue puur être articulée, à son extrémité libre, en 12 sur un second support fixe 4a fixé, dans c-et exemple, sur le battant d' une porte articulée en 7, Le vérin 3 est d@@ symetrique, dans @et exemple, a @ause de la présence d'un câble électrique @'alementation 13 qui sort du côté longitudinal inférieur 3a du vérie 3 et qui doit toujours être a@nsi di@@@@e de façon a @@ que l'ét@@ché@té du vérau @@it assurée. As shown in particular in Figure 2, the cylinder 3 has a first end 3 'intended to be articulated on a fjxe support 4 sealed ur a vertical side 5' of a masonry pillar 5. From the second end 3 'of the jack 3, opposite the first 3', leaves the rod 11 of the jack which is provided for being articulated, at its free end, at 12 on a second fixed support 4a fixed, in c-and example, on the leaf d 'a door hinged at 7, The actuator 3 is symmetrical, in @ and example, a @ cause of the presence of an electric cable @' feed 13 which comes out of the lower longitudinal side 3a of the frame 3 and which must always be a @ nsi di @@@@ e in a way that @ @@ ché @ té du vérau @@ it is assured.

l'articulation de la première extrémité 3@ d@ vé@@n @ est réalisée à l'@@de d'une chape d'articulation 19 qui fait partie d'une plaque@@upport 20 solidar@see de cette extrémité 3 par des moyens de fixation constitués par exemple par des vi@ 21 (figure 3). Comme représenté egalement sur la figure 3, la chape d'articulation 19 est décalée latéralement suivant 18 sur sa plaque-support 20 par rapport à l'axe longitudinal 22 du vérin (figure 3), transversalement à son propre arbre d'articulation 8 par lequel elle est articulée sur le support fixe 4.Ce decalage latéral de la chape 20 est effectué dans une direction telle que, lorsque le vérin est installé, la chape 20 se trouve rapprochée du pilier de maçonnerie 5.the articulation of the first end 3 @ d @ vé @@ n @ is carried out at the @@ of a joint yoke 19 which is part of a plate @@ upport 20 solidar @ see of this end 3 by fixing means constituted for example by vi @ 21 (Figure 3). As also shown in FIG. 3, the articulation yoke 19 is laterally offset along 18 on its support plate 20 relative to the longitudinal axis 22 of the jack (FIG. 3), transversely to its own articulation shaft 8 by which it is articulated on the fixed support 4. This lateral offset of the yoke 20 is carried out in a direction such that, when the jack is installed, the yoke 20 is brought closer to the masonry pillar 5.

Dans cet exemple de réalisation, la plaque--support 20 de la chape 19 est montée pivotante autour d'un arbre 23 (figure 3) supporté par le vérin 3, arbre dispose par exemple suivant l axe longitudinal 2 de celui-ci. Cet arbre 23 est constitué par exemple par une partie cylindrique 3' du vérin 3, Cette partie cylindrique 23 est légèrement plus longue que l'épaisseur de la plaque support 20 et est terminée par une partie cylindrique 25, de diamètre extérieur plus réduit, sur laquelle est sertie une rondelle 2S qui constitue un moyen de retenue, suivant 27, de la plaque-support 20. In this exemplary embodiment, the support plate 20 of the yoke 19 is pivotally mounted around a shaft 23 (FIG. 3) supported by the jack 3, the shaft being arranged for example along the longitudinal axis 2 thereof. This shaft 23 is constituted for example by a cylindrical part 3 'of the jack 3. This cylindrical part 23 is slightly longer than the thickness of the support plate 20 and is terminated by a cylindrical part 25, of smaller outside diameter, on which is crimped with a washer 2S which constitutes a means of retaining, along 27, the support plate 20.

S@. lors de l'installation du ver@n @ su@ le pilier S, la chape 19 ne se trouve pas orientée convenablement. Il suffit de devisser totalement les quatre vis 21, de faire pivoter de 180 la plaque-support 20 autour de son arbre de pivotement 23 t d revisser les quatre vis. La présence de la i-ondelle 2S rend imperdable la plaque- support 20 pendant cette opération, dans le présent exemple. Les moyens de fixation sont adaptés pour solidariser du vérin la plaque-support 20 dans l'une quelconque des deux positions symétriques de cette dernière.A cet effet, ils sont disposés symétriquement par rapport à l'axe longitudinal 22 du vérin 3. S @. when installing the ver @ n @ su @ pillar S, the yoke 19 is not oriented properly. It suffices to completely unscrew the four screws 21, to pivot the support plate 20 180 around its pivot shaft 23 t to re-screw the four screws. The presence of the i-wave 2S makes the support plate 20 captive during this operation, in the present example. The fixing means are adapted to secure the support plate 20 in any one of the two symmetrical positions of the latter. To this end, they are arranged symmetrically with respect to the longitudinal axis 22 of the jack 3.

Pour que la porte 6 occupe sa position fermée, le vérin 3 doit occuper la position représentée en traits pleins sur la figure 2, position dans laquelle sa tige 11 est sortie au maximum. A cause du decalage latéral de la chape 19, la distance l existant entre l'axe d'articulation 8 de la chape du vérin, et le côté 5' du pilier 5, est inférieure à la distance 1 existant dans l'art antérieur. Il en est de même pour la distance L' qui est ainsi inférieure à la distance L définie précédemment, toutes choses restant égales par ailleurs. So that the door 6 occupies its closed position, the actuator 3 must occupy the position shown in solid lines in FIG. 2, position in which its rod 11 is extended as far as possible. Because of the lateral offset of the yoke 19, the distance l existing between the articulation axis 8 of the yoke of the jack, and the 5 ′ side of the pillar 5, is less than the distance 1 existing in the prior art. It is the same for the distance L 'which is thus less than the distance L defined above, all other things remaining equal.

Pour amener la porte 6 dans sa position fermée, le vérin est actionné dans un sens qui ramène à la longueur minimale sa tige 11. Le vérin parvient ainsi finalement dans la position représentée en traits pointillés sur la figure 2. On remarque que, compte tenu de la distance 1' réduite, le débattement de la porte est plus grand que dans le cas de l'art antérieur décrit, toutes choses restant égales par ailleurs. To bring the door 6 into its closed position, the actuator is actuated in a direction which brings the rod 11 back to the minimum length. The actuator thus finally arrives in the position represented by dotted lines in FIG. 2. It is noted that, taking into account from the reduced distance 1 ′, the clearance of the door is greater than in the case of the prior art described, all other things remaining equal.

Sans sortir du cadre de la présente invention, l'arbre de pivotement 22 pourrait entre supprimé, la plaque-support 20 et la chape d'articulation 19 pouvant entre, malgré cette suppression, retournées de 180 comme décrit précédemment, après dévissage-temporaire des quatre vis 21.  Without departing from the scope of the present invention, the pivot shaft 22 could between suppressed, the support plate 20 and the articulation yoke 19 being able, between, despite this deletion, turned over by 180 as described above, after temporarily unscrewing the four screws 21.

Claims (2)

@@VENDICATIONS@@ VENDICATIONS 1. Vérin présentant, par rapport à son axe 1. Cylinder having, with respect to its axis longitudinal (22), une certaine dissymétrie susceptible i empecher son retournement de 180 autour de cet axe longitudinal et comportant, à son extrémité (@') destinee à être articulée sur un support fixe (4), une longitudinal (22), a certain dissymmetry capable of preventing it from turning 180 around this longitudinal axis and comprising, at its end (@ ') intended to be articulated on a fixed support (4), chape d'articulation faisant partie d'une plaque-support (20) solidarisée de cette extrèmite par des moyens de fixation, caractérisé en ce que la chape d'articulation (19) est décalée sur sa plaque-support 20, latéralement par rapport à l'axe longitudinal (22) du vérin (3), transversalement à son propre axe d articulation (8), de façon à pouvoir occuper au choix, par retournement de la plaque-support (20) de 180 dans un plan perpendiculaire à l'axe (22) du vérin, l'une quelconque parmi deux positions symétriques par rapport audit axe longitudinal (22), les moyens de fixation (21) étant adaptés pour solidariser du vérin (3) la plaque-support (20) dans l'une quelconque des deux positions symétriques. articulation yoke forming part of a support plate (20) secured to this end by fixing means, characterized in that the articulation yoke (19) is offset on its support plate 20, laterally with respect to the longitudinal axis (22) of the jack (3), transversely to its own articulation axis (8), so as to be able to occupy as desired, by inverting the support plate (20) by 180 in a plane perpendicular to the 'axis (22) of the jack, any one of two symmetrical positions relative to said longitudinal axis (22), the fixing means (21) being adapted to secure the jack (3) the support plate (20) in the 'any of the two symmetrical positions. 2. Vérin selon la revendication 1, caractérisé en ce que la plaque-support (20) de la chape d'articulation (19) est montée pivotante autour d' un arbre (23) supporté par le verin (3), disposé au moins approximativement suivant 2. axe longitudinal (22) de celui-ci, et muni de moyens de retenue (26) de ladite plaque-support, de façon a ce que celle-@@ puisse occuper, a près déblocage temporaire des moyens de fixation (21), l'une ou l'autre de ses deux positions symétriques.  2. Jack according to claim 1, characterized in that the support plate (20) of the articulation yoke (19) is pivotally mounted around a shaft (23) supported by the jack (3), arranged at least approximately along 2. longitudinal axis (22) thereof, and provided with retaining means (26) of said support plate, so that it - @@ can occupy, near temporary release of the fixing means ( 21), one or the other of its two symmetrical positions.
FR8313105A 1983-08-09 1983-08-09 CYLINDER WITH ARTICULATING CAP Expired FR2550586B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR8313105A FR2550586B1 (en) 1983-08-09 1983-08-09 CYLINDER WITH ARTICULATING CAP
CH3470/84A CH657676A5 (en) 1983-08-09 1984-07-17 CYLINDER WITH ARTICULATION CAP.
IT22140/84A IT1176513B (en) 1983-08-09 1984-07-31 JACK WITH JOINT JOINT
DE19848422791U DE8422791U1 (en) 1983-08-09 1984-07-31 SWING CYLINDER
IT8422767U IT8422767V0 (en) 1983-08-09 1984-07-31 JACK WITH JOINT JOINT.
ZA846036A ZA846036B (en) 1983-08-09 1984-08-03 Jack with pivot clevis
ES1984281001U ES281001Y (en) 1983-08-09 1984-08-08 CAT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8313105A FR2550586B1 (en) 1983-08-09 1983-08-09 CYLINDER WITH ARTICULATING CAP

Publications (2)

Publication Number Publication Date
FR2550586A1 true FR2550586A1 (en) 1985-02-15
FR2550586B1 FR2550586B1 (en) 1985-11-29

Family

ID=9291517

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8313105A Expired FR2550586B1 (en) 1983-08-09 1983-08-09 CYLINDER WITH ARTICULATING CAP

Country Status (6)

Country Link
CH (1) CH657676A5 (en)
DE (1) DE8422791U1 (en)
ES (1) ES281001Y (en)
FR (1) FR2550586B1 (en)
IT (2) IT1176513B (en)
ZA (1) ZA846036B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615237A1 (en) * 1987-05-13 1988-11-18 Amgar Eric Hydraulic system for manoeuvring gates with two opening leaves
CN1327140C (en) * 2004-03-19 2007-07-18 北京工业大学 Joint fixed lead reciprocating, rotary driving annular cylinder

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1655685A (en) * 1925-01-30 1928-01-10 Ole B Arntzen Door-actuating spring
US2704221A (en) * 1950-05-27 1955-03-15 Gar Wood Ind Inc Offset cylinder and piston rod mounting for hydraulic dump bodies
FR1127400A (en) * 1954-07-14 1956-12-14 Nat Pneumatic Co Advanced push-opening vehicle door control device
DE1106639B (en) * 1957-01-29 1961-05-10 Rudolf Sterkel Power drive device for leaves of doors, especially heavy insulating doors
FR2469543A1 (en) * 1979-11-15 1981-05-22 Antares Automatic door or gate operating device - uses hydraulic piston mounted between hinge and sliding mounting fitted to door

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1655685A (en) * 1925-01-30 1928-01-10 Ole B Arntzen Door-actuating spring
US2704221A (en) * 1950-05-27 1955-03-15 Gar Wood Ind Inc Offset cylinder and piston rod mounting for hydraulic dump bodies
FR1127400A (en) * 1954-07-14 1956-12-14 Nat Pneumatic Co Advanced push-opening vehicle door control device
DE1106639B (en) * 1957-01-29 1961-05-10 Rudolf Sterkel Power drive device for leaves of doors, especially heavy insulating doors
FR2469543A1 (en) * 1979-11-15 1981-05-22 Antares Automatic door or gate operating device - uses hydraulic piston mounted between hinge and sliding mounting fitted to door

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615237A1 (en) * 1987-05-13 1988-11-18 Amgar Eric Hydraulic system for manoeuvring gates with two opening leaves
CN1327140C (en) * 2004-03-19 2007-07-18 北京工业大学 Joint fixed lead reciprocating, rotary driving annular cylinder

Also Published As

Publication number Publication date
IT1176513B (en) 1987-08-18
ES281001Y (en) 1985-07-16
ES281001U (en) 1985-01-16
CH657676A5 (en) 1986-09-15
IT8422767V0 (en) 1984-07-31
DE8422791U1 (en) 1984-10-25
IT8422140A0 (en) 1984-07-31
FR2550586B1 (en) 1985-11-29
ZA846036B (en) 1985-03-27

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