EP0190275A1 - Improvement to a device for reducing the effort of lifting soil with a spade or the like - Google Patents

Improvement to a device for reducing the effort of lifting soil with a spade or the like

Info

Publication number
EP0190275A1
EP0190275A1 EP85904005A EP85904005A EP0190275A1 EP 0190275 A1 EP0190275 A1 EP 0190275A1 EP 85904005 A EP85904005 A EP 85904005A EP 85904005 A EP85904005 A EP 85904005A EP 0190275 A1 EP0190275 A1 EP 0190275A1
Authority
EP
European Patent Office
Prior art keywords
collar
arm
improvement
toutil
handle
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Withdrawn
Application number
EP85904005A
Other languages
German (de)
French (fr)
Inventor
Luc Claude Jousse
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.)
Individual
Original Assignee
Individual
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
Priority claimed from FR8412948A external-priority patent/FR2570240A1/en
Priority claimed from FR8417354A external-priority patent/FR2572876A2/en
Priority claimed from FR8501752A external-priority patent/FR2576738A2/en
Priority claimed from FR8512190A external-priority patent/FR2589666B1/en
Application filed by Individual filed Critical Individual
Publication of EP0190275A1 publication Critical patent/EP0190275A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B1/00—Hand tools
    • A01B1/02—Spades; Shovels
    • A01B1/026—Spades; Shovels with auxiliary handles for facilitating lifting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/02—Handle constructions flexible

Definitions

  • the present invention relates to improvements of a device for reducing the lifting effort of the earth with a spade or the like.
  • the device if per-fected is that which consists of an arm (board 1/3, figures 1 and 2, 3), one end of which is articulated on a first collar (board 2/3, figure 3, 10) rotating freely, but without sliding, on a second collar (11) secured to the handle (1) of the tool.
  • the articulation allows the arm (3) to radiate in any plane of the axis which is common to the collars (10 and 11) and to the handle (1) of the tool, or substantially.
  • the arm (3) has, at its other end, a handle (2) which is integral therewith, to be grasped by the front hand. The back hand grabbing the handle in the usual way.
  • Improvements include:
  • This elastic device applies the arm (3) to the handle (1) of the tool when the handle (2) is released.
  • This elastic device is composed of a torsion spring with two windings (plate 1/3, FIGS. 2, 4 and 5) around the axis (9) of articulation of the arm (3) on the collar (10), on either side of the joint itself.
  • This spring is already under tension when the arm (3) is applied to the handle (1).
  • Second solution a bent rod with Tequerre at one end, this threaded end 5 and a flat iron with holes in its length.
  • the assembly is carried out by the passage of the rod in the flat iron, at one end thereof, this end bent for this purpose, on the one hand; and by a nut tightening on the flat iron the bent and threaded end of the rod through one of the holes of the first flat, on the other hand.
  • the plane which is parallel to the axis of the collar (10), of the axis of the articulation (9) is above the tool, and that it remains there, of course, when turning over the tool for overturning the earth.
  • the arm (3) divides into two branches to straddle the collars (10 and 11) and the handle (1) up to the articulation around the axis (9) .
  • this ideal axis can be located following the tangent, up to the diameter included.
  • the axis of the collar (10) is below the plane which is parallel to it and which is common to the two points of the articulation of the arm (3) and the collar (read) together;
  • the axis of the collar (10) is in a plane which is common to the two points of the articulation of the arm (3) and the collar
  • the axis of the collar (10) is above the plane which is parallel to it and which is common to the two points of the articulation of the arm (3) and of the collar (10) together.
  • the arm (3) divides into two branches to straddle the collars (10 and 11) and the handle (1) up to the two points of the joint.
  • a first simple torsion spring (board 3/3, Figure 4, 12), this spring working only in the direction of reduction of the diameter of the turns, is placed to act at one of the ends of the set of two necklaces (10 and 11).
  • One of the ends (13) of this spring is integral with the collar (10) carrying the arm.
  • the other end (14) is integral with the other collar
  • a second simple torsion spring (15) identical to the first, is placed to act at the other end of the assembly of the two collars.
  • the non-working spring is separated, by one of its ends, from one of the two collars, this end emerging from a stop secured to the collar and which causes the tension in the other direction.
  • the two springs can form only one, which is integral in its middle, with the collar (10) carrying the arm, and each of the two ends of which is integral with one of the shoulders (11) of the collar itself integral with the handle (1) of the tool, by a stop.
  • the stop of one of the two ends of the spring causing the tension while the other of the two ends of the spring emerges from its own.
  • a single torsion spring similar to one of the two springs above, but working in both directions, ie both in the direction of reducing the diameter of the turns and in the direction of increasing this diameter;
  • this torsion spring can be reinforced by that of a second identical spring placed at the other end of the set of two collars (10 and 11) and whose turns are in the same direction as those from the first, or in reverse.
  • the anchoring of each of the two springs, or of the single spring, on the perimeter of one of the collars is adjustable, for example by sliding the end of the spring in an eye secured to the collar and in which the spring is locked by a screw when the arm is in its initial position, at the front of Tout il.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

Perfectionnement d'un dispositif pour réduire l'effort de soulèvement de la terre avec une bêche ou analogue; le dispositif perfectionné composé d'un bras (3) articulé à une extrémité sur un collier (16) dans lequel tourne le manche de l'outil, (1) et ayant à son autre extrémité une poignée (2) saisie par la main avant; de sorte que le soulèvement de la bêche chargée de terre peut être effectué seulement avec une flexion des jambes, sans flexion du tronc. Les perfectionnements consistent: 1) En un dispositif élastique (5) appliquant le bras (3) sur le haut du manche de l'outil (1) lorsque la poignée (2) du bras est lâchée. 2) En un dispositif télescopique du bras (3) permettant d'en régler la longueur en fonction de la taille de la personne. 3) En un dispositif élastique (18, 21) effectuant le rappel du bras à l'avant de l'outil, position initiale, lorsque la poignée du bras est lâchée, et que la bêche a été retournée de quelque côté que ce soit.Improvement of a device for reducing the lifting effort of the earth with a spade or the like; the improved device composed of an arm (3) articulated at one end on a collar (16) in which the handle of the tool turns, (1) and having at its other end a handle (2) grasped by the front hand ; so that the lifting of the spade loaded with soil can be carried out only with a bending of the legs, without bending of the trunk. The improvements consist of: 1) An elastic device (5) applying the arm (3) to the top of the handle of the tool (1) when the handle (2) of the arm is released. 2) By a telescopic device of the arm (3) allowing to adjust the length according to the size of the person. 3) In an elastic device (18, 21) effecting the return of the arm to the front of the tool, initial position, when the handle of the arm is released, and the spade has been turned over to any side.

Description

DESCRIPTION DESCRIPTION
Perfect ionnement d'un dispositif pour réduire l'effort de soulèvement de la terre avec une bêche ou analogue.Perfect operation of a device to reduce the lifting effort of the earth with a spade or the like.
La présente invention a pour objet des perfectionnements d'un dispositif pour réduire l'effort de soulèvement de la terre avec une bêche ou analogue.The present invention relates to improvements of a device for reducing the lifting effort of the earth with a spade or the like.
Le dispositf if per-fect ionné est celui qui est composé d'un bras (planche 1/3, figures 1 et 2, 3) dont une extrémité est articulée sur un premier collier (planche 2/3, figure 3, 10) tournant librement, mais sans coulissement, sur un second collier (11) solidaire du manche (1) de l'outil. L'articulation permet au bras (3) de rayonner dans tout plan de l'axe qui est commun aux colliers (10 et 11) et au manche (1) de l'outil, ou sensiblement. Le bras (3) a, à son autre extrémité, une poignée (2) qui en est solidaire, à saisir par la main avant. La main arrière saisissant le manche de la manière habituelle.The device if per-fected is that which consists of an arm (board 1/3, figures 1 and 2, 3), one end of which is articulated on a first collar (board 2/3, figure 3, 10) rotating freely, but without sliding, on a second collar (11) secured to the handle (1) of the tool. The articulation allows the arm (3) to radiate in any plane of the axis which is common to the collars (10 and 11) and to the handle (1) of the tool, or substantially. The arm (3) has, at its other end, a handle (2) which is integral therewith, to be grasped by the front hand. The back hand grabbing the handle in the usual way.
Les perfectionnements consistent :Improvements include:
1. En un dispositif élastique appliquant le bras (3) sur le manche (1) de l'outil lorsque la poignée (2) est lâchée. Ce dispositif élastique est composé d'un ressort de torsion à deux enroulements (planche 1/3, figure 2, 4 et 5) autour de l'axe (9) d'articulation du bras (3) sur le collier (10), de part et d'autre de l'articulation proprement dite. Ce ressort est déjà en tension lorsque le bras (3) est appliqué sur le manche (1).1. In an elastic device applying the arm (3) to the handle (1) of the tool when the handle (2) is released. This elastic device is composed of a torsion spring with two windings (plate 1/3, FIGS. 2, 4 and 5) around the axis (9) of articulation of the arm (3) on the collar (10), on either side of the joint itself. This spring is already under tension when the arm (3) is applied to the handle (1).
2. En un dispositif télescopique du bras articulé, pour en adapter la longueur à la taille de la personne.2. In a telescopic device of the articulated arm, to adapt the length to the size of the person.
Première solution : un fourreau ayant un filetage intérieur simple, recevant une seule tige filetée ; ou ayant deux filetages inversés, recevant deux tiges filetées, de sorte que l'allongement ou le raccourci ssemnt soit obtenu par les deux extrémités à la fois, à la manière d'un tendeur 5 avec écrous de blocage à la longueur convenable.First solution: a sheath with a simple internal thread, receiving a single threaded rod; or having two reverse threads, receiving two threaded rods, so that the elongation or shortening ssemnt is obtained by both ends at the same time, in the manner of a tensioner 5 with locking nuts to the appropriate length.
Deuxième solution : une tringle coudée à Téquerre à une extrémité, cette extrémité filetée 5 et un fer plat à trous dans sa longueur. L'assemblage est réalisé par le passage de la tringle dans le fer plat, à une extrémité de celui-ci, cette extrémité coudée à cet effet, d'une part ; et par un écrou serrant sur le fer plat l'extrémité coudée et filetée de la tringle au travers de l'un des trous du ier plat, d'autre part.Second solution: a bent rod with Tequerre at one end, this threaded end 5 and a flat iron with holes in its length. The assembly is carried out by the passage of the rod in the flat iron, at one end thereof, this end bent for this purpose, on the one hand; and by a nut tightening on the flat iron the bent and threaded end of the rod through one of the holes of the first flat, on the other hand.
3. En ce que l'axe (planche 1/3, figures 1 et 2, 9) de l'articulation du bras (3) et du collier (10) ensemble, est :3. In that the axis (plate 1/3, Figures 1 and 2, 9) of the articulation of the arm (3) and the collar (10) together, is:
Extérieur, pouvant être tangent, au collier (10),Exterior, which may be tangential, to the collar (10),
Et dans un plan perpendiculaire à l'axe du collier (10).And in a plane perpendicular to the axis of the collar (10).
Et en ce que, lorsque l'outil se trouve soulevé avec sa charge de terre:And in that, when the tool is lifted with its earth load:
Dans une première manière, le plan qui est parallèle à l'axe du collier (10), de l'axe de l'articulation (9) est au-dessus de l'outil, et qu'il le reste, bien entendu, lors du retournement de l'outil pour le renversement de la terre.In a first way, the plane which is parallel to the axis of the collar (10), of the axis of the articulation (9) is above the tool, and that it remains there, of course, when turning over the tool for overturning the earth.
Dans une seconde manière, le plan qui est parallèle à l'axe du collier (10), de l'axe de l'articulation (9) est au-dessous de l'outil, et qu'il le reste, bien entendu, lors du retournement de l'outil pour le renversement de la terre.In a second way, the plane which is parallel to the axis of the collar (10), of the axis of the articulation (9) is below the tool, and that it remains there, of course, when turning over the tool for overturning the earth.
Et encore en ce que, dans ce dernier cas, le bras (3) se divise en deux branches pour enfourcher les colliers (10 et 11) et le manche (1) jusqu'à l'articulation autour de l'axe (9).And still in that, in the latter case, the arm (3) divides into two branches to straddle the collars (10 and 11) and the handle (1) up to the articulation around the axis (9) .
4. En ce que l'articulation du bras (3) et du collier (10) ensemble, est en deux points situés sur le périmètre extérieur du collier (10), Dans un même plan perpendiculaire à l'axe du collier (10),4. In that the articulation of the arm (3) and the collar (10) together is at two points located on the outer perimeter of the collar (10), In the same plane perpendicular to the axis of the collar (10),
A égale distance de l'axe du collier (10),Equidistant from the axis of the collar (10),
Autour d'un même axe idéal formant la corde de l'arc qui est une partie de la circonférence du collier (10), cet axe idéal pouvant se situer à la suite de la tangente, jusqu'au diamètre compris.Around the same ideal axis forming the chord of the arc which is a part of the circumference of the collar (10), this ideal axis can be located following the tangent, up to the diameter included.
De sorte que lorsque l'outil est soulevé avec sa charge de terre :So that when the tool is lifted with its earth load:
Dans une première manière, l'axe du collier (10) est au-dessous du plan qui lui est parallèle et qui est commun aux deux points de l'articulation du bras (3) et du collier (lu) ensemble;In a first way, the axis of the collar (10) is below the plane which is parallel to it and which is common to the two points of the articulation of the arm (3) and the collar (read) together;
Dans une deuxième manière, l'axe du collier (10), est dans un plan qui est commun aux deux points de l'articulation du bras (3) et du collierIn a second way, the axis of the collar (10) is in a plane which is common to the two points of the articulation of the arm (3) and the collar
(10) ensemble;(10) together;
Et dans une troisième manière, l'axe du collier (10) est au-dessus du plan qui lui est parallèle et qui est commun aux deux points de l'articulation du bras (3) et du collier (10) ensemble.And in a third way, the axis of the collar (10) is above the plane which is parallel to it and which is common to the two points of the articulation of the arm (3) and of the collar (10) together.
Dans ces trois cas, le bras (3) se divise en deux branches pour enfourcher les colliers (10 et 11) et le manche (1) jusqu'aux deux points de l'articulation.In these three cases, the arm (3) divides into two branches to straddle the collars (10 and 11) and the handle (1) up to the two points of the joint.
5. A utiliser un ou deux ressorts pour obtenir le rappel automatique, à l'avant de l'outil, dans sa position initiale, du bras articulé (3). Première solution5. Use one or two springs to obtain the automatic return, at the front of the tool, to its initial position, of the articulated arm (3). First solution
1. Un premier ressort de torsion simple (planche 3/3, figure 4, 12), ce ressort travaillant uniquement dans le sens de la réduction du diamètre des spires, est placé pour agir à l'une des extrémités de l'ensemble des deux colliers (10 et 11).1. A first simple torsion spring (board 3/3, Figure 4, 12), this spring working only in the direction of reduction of the diameter of the turns, is placed to act at one of the ends of the set of two necklaces (10 and 11).
L'une des extrémités (13) de ce ressort est solidaire du collier (10) porteur du bras. L'autre extrémité (14) est solidaire de l'autre collierOne of the ends (13) of this spring is integral with the collar (10) carrying the arm. The other end (14) is integral with the other collar
(11) à l' 'épaulement de celui-ci ; cet autre collier (11) solidaire du manche (1) de l'outil. Ce ressort est sans tension lorsque le bras est dans sa position initiale, à l'avant de l'outil.(11) at the shoulder thereof; this other collar (11) integral with the handle (1) of the tool. This spring is tensionless when the arm is in its initial position, at the front of the tool.
Il est tendu par le retournement de la bêche dans un seul sens : à droite suivant la représentation qui en est faite de face.It is stretched by turning the spade in one direction only: to the right according to the representation made of it from the front.
2. Un second ressort de torsion simple (15) identique au premier, est placé pour agir à l'autre extrémité de l'ensemble des deux colliers.2. A second simple torsion spring (15) identical to the first, is placed to act at the other end of the assembly of the two collars.
Ses spires sont dans le même sens que celles du premier.Its turns are in the same direction as those of the first.
Il est également sans tension lorsque le bras est dans sa position initiale, en avant de l'outil.It is also tensionless when the arm is in its initial position, in front of the tool.
Il est tendu uniquement dans le sens du retournement de la bêche du côté opposé à celui provoquant la tension du premier ressort, c'est-à-dire à gauche suivant la représentation qui en est faite de face.It is tensioned only in the direction of turning the spade on the side opposite to that causing the tension of the first spring, that is to say on the left according to the representation which is made of it from the front.
3. Lors du retournement de la bêche dans un sens, le ressort ne travaillant pas est désolidarisé, par l'une de ses extrémités, de l'un des deux colliers, cette extrémité se dégageant d'une butée solidaire du collier et qui provoque la tension dans l'autre sens.3. When the spade is turned over in one direction, the non-working spring is separated, by one of its ends, from one of the two collars, this end emerging from a stop secured to the collar and which causes the tension in the other direction.
Les deux ressorts peuvent n'en former qu'un seul, qui est solidaire en son milieu, du collier (10) porteur du bras, et dont chacune des deux extrémités est solidaire d'un des épaulements (11) du collier lui-même solidaire du manche (1) de l'outil, par une butée. La butée de l'une des deux extrémités du ressort provoquant la tension alors que l'autre des deux extrémités du ressort se dégage de la sienne. Deuxième solutionThe two springs can form only one, which is integral in its middle, with the collar (10) carrying the arm, and each of the two ends of which is integral with one of the shoulders (11) of the collar itself integral with the handle (1) of the tool, by a stop. The stop of one of the two ends of the spring causing the tension while the other of the two ends of the spring emerges from its own. Second solution
1. Un ressort de torsion unique, semblable à l'un des deux ressorts ci-dessus, mais travaillant dans les deux sens, c'est-à-dire tant dans le sens de la réduction du diamètre des spires que dans le sens de l'augmentation de ce diamètre;1. A single torsion spring, similar to one of the two springs above, but working in both directions, ie both in the direction of reducing the diameter of the turns and in the direction of increasing this diameter;
Solidaire, à l'une de ses deux extrémités, du collier (10) porteur du bras articulé (3), et, à l'autre de ses deux extrémités, du collier (11) solidaire du manche (1).Solid, at one of its two ends, the collar (10) carrying the articulated arm (3), and, at the other of its two ends, the collar (11) integral with the handle (1).
Il est sans tension lorsque le bras (3) est dans sa position initiale, en avant de l'outil.It is tensionless when the arm (3) is in its initial position, in front of the tool.
De sorte que ce ressort unique effectue le rappel automatique, à l'avant de l'outil, du bras (3) avec le collier porteur (10), de quelque côté que soit effectué le retournement de la bêche.So that this single spring automatically recalls, at the front of the tool, the arm (3) with the support collar (10), regardless of which side the spade is turned over.
2. L'action de ce ressort de torsion peut être renforcée par celle d'un second ressort identique placé à l'autre extrémité de l'ensemble des deux colliers (10 et 11) et dont les spires sont dans le même sens que celles du premier, ou en sens inverse.2. The action of this torsion spring can be reinforced by that of a second identical spring placed at the other end of the set of two collars (10 and 11) and whose turns are in the same direction as those from the first, or in reverse.
3. Pour assurer exactement, dans Tune ou l'autre des solutions, l'absence de tension de chacun des deux ressorts, ou du ressort unique, lorsque le bras (3) est à l'avant de l'outil, dans sa position initiale, l'ancrage de chacun des deux ressorts, ou du ressort unique, sur le périmètre de l'un des colliers, est réglable, par exemple par le coulissement de l'extrémité du ressort dans un oeil solidaire du collier et dans lequel le ressort est bloqué par une vis lorsque le bras est dans sa position initiale, à l'avant de Tout il. 3. To ensure exactly, in one or other of the solutions, the absence of tension of each of the two springs, or of the single spring, when the arm (3) is at the front of the tool, in its position initial, the anchoring of each of the two springs, or of the single spring, on the perimeter of one of the collars, is adjustable, for example by sliding the end of the spring in an eye secured to the collar and in which the spring is locked by a screw when the arm is in its initial position, at the front of Tout il.

Claims

REVENDICATIONS Perfectionnements au dispositif existant et destiné à réduire l'effort de soulèvement de la terre avec une bêche ou analogue. CLAIMS Improvements to the existing device and intended to reduce the lifting effort of the earth with a spade or the like.
1. Le dispositif existant, perfectionné, est celui qui est composé d'un bras (planche 1/3, figures 1 et 2, 3) dont une extrémité est articulée sur un premier collier (planche 2/3, figure 3, 10) tournant librement, mais sans coulissement, sur un second collier (11) solidaire du manche (1) de Toutil. L'articulation permet au bras (3) de rayonner dans tout plan de Taxe qui est commun aux colliers (10 et 11) et au manche (1) de Toutil, ou sensiblement. Le bras (3) a, à son autre extrémité, une poignée (2) qui en est solidaire, pour être saisie par la main avant ; la main arrière saisissant le manche (1) de Toutil de la manière habituelle. e1. The existing device, improved, is that which consists of an arm (board 1/3, figures 1 and 2, 3), one end of which is articulated on a first collar (board 2/3, figure 3, 10) rotating freely, but without sliding, on a second collar (11) secured to the handle (1) of Toutil. The articulation allows the arm (3) to radiate in any tax plan which is common to the collars (10 and 11) and to the handle (1) of Toutil, or substantially. The arm (3) has, at its other end, a handle (2) which is integral therewith, to be grasped by the front hand; the rear hand grasping the handle (1) of Toutil in the usual way. e
2. Perfectionnement au dispositif existant consistant en un dispositif élastique composé d'un ressort de torsion à deux enroulements (planche 1/3, figure 2, 4 et 5) autour de Taxe (9) de l'articulation du bras (3) et du collier (planche 2/3, figure 3, 10) ensemble, ces enroulements étant de part et d'autre de l'articulation proprement dite. Ce ressort est déjà en tension lorsque le bras (3) est appliqué sur le haut du manche (1) de Toutil, de sorte que la tension augmente au fur et à mesure de l'ouverture de l'angle formé par le bras (3) et le haut du manche (1) de l'outil.2. Improvement to the existing device consisting of an elastic device composed of a torsion spring with two windings (plate 1/3, FIGS. 2, 4 and 5) around Tax (9) of the articulation of the arm (3) and of the collar (plate 2/3, Figure 3, 10) together, these windings being on either side of the articulation proper. This spring is already in tension when the arm (3) is applied to the top of the handle (1) of Toutil, so that the tension increases as the angle formed by the arm (3) opens. ) and the top of the handle (1) of the tool.
3. Perfectionnement au dispositif existant, consistant en un dispositif télescopique du bras (3) comprenant un fourreau ayant un seul filetage intérieur, recevant une seule tige filetée ; ou ayant deux filetages inversés, recevant deux tiges filetées, à la manière d'un tendeur ; avec écrous de blocage.3. Improvement to the existing device, consisting of a telescopic device of the arm (3) comprising a sheath having a single internal thread, receiving a single threaded rod; or having two reverse threads, receiving two threaded rods, in the manner of a tensioner; with locking nuts.
4. Perfectionnement au dispositif existant, consistant en un dispositif télescopique du bras (3) comprenant une tringle coudée à l'équerre, à une extrémité, cette extrémité filetée ; et un fer plat à trous dans sa longueur, La tringle coulisse dans le fer plat à une extrémité de celui-ci, cette extrémité coudée à cet effet ; l'extrémité filetée de la tringle étant du côté du fer plat, et pouvant être serrée sur le fer plat au travers de l'un quelconque des trous de celui-ci, au moyen d'un écrou.4. Improvement to the existing device, consisting of a telescopic arm device (3) comprising a bent rod at the square, at one end, this threaded end; and a flat iron with holes in its length, The rod slides in the flat iron at one end thereof, this end bent for this purpose; the threaded end of the rod being on the side of the flat iron, and being able to be tightened on the flat iron through any one of the holes thereof, by means of a nut.
5. Perfectionnement au dispositif existant consistant en ce que l'articulation du bras (3) et du collier (10) ensemble est autour d'un axe qui est :5. Improvement to the existing device consisting in that the articulation of the arm (3) and the collar (10) together is around an axis which is:
Extérieur au collier (10) ; pouvant lui être tangent. Et dans un plan perpendiculaire à Taxe du collier (10).Outside the collar (10); can be tangent to it. And in a plane perpendicular to Tax of the collar (10).
6. Perfectionnement au dispositif selon la revendication 5, caractérisé en ce que, lorsque Toutil est soulevé avec sa charge de terre, le plan qui est parallèle à Taxe du collier (10), de Taxe (9) de l'articulation, est au-dessous de Toutil.6. Improvement to the device according to claim 5, characterized in that, when Toutil is lifted with its earth load, the plane which is parallel to Collar tax (10), Tax (9) of the joint, is at below Toutil.
7. Perfectionnement au dispositif selon les revendications 5, et 6 , caractérisé en ce que le bras (3) se divise en deux branches pour enfourcher les colliers (10 et 11) et le manche (1) de l'outil jusqu'à l'articulation des deux branches autour de Taxe (9).7. Improvement to the device according to claims 5, and 6, characterized in that the arm (3) is divided into two branches to straddle the collars (10 and 11) and the handle (1) of the tool up to l 'articulation of the two branches around Tax (9).
8. Perfectionnement au dispositif existant, caractérisé en ce que l'articulation du bras (3) et du collier (10) ensemble, est en deux points situés sur le périmètre extérieur du collier (10),8. Improvement to the existing device, characterized in that the articulation of the arm (3) and the collar (10) together, is at two points located on the outer perimeter of the collar (10),
Dans un même plan perpendiculaire à Taxe du collier (10),In the same plane perpendicular to Tax of the collar (10),
A égale distance de Taxe du collier (10),Equidistant from the Collar Tax (10),
L'axe idéal commun aux deux points de l'articulation forme la corde de Tare qui est une partie de la circonférence du collier (10) ; cet axe idéal pouvant se situer entre la tangente et le diamètre, et se confondre avec le diamètre.The ideal axis common to the two points of the articulation forms the Tare cord which is part of the circumference of the collar (10); this ideal axis can be between the tangent and the diameter, and merge with the diameter.
9. Perfectionnement au dispositif selon la revendication 8, caractérisé en ce que, lorsque Toutil est soulevé avec sa charge de terre, Taxe du collier (10) est au-dessous du plan qui lui est parallèle, des deux points de l'articulation du bras (3) et du collier (10) ensemble.9. Improvement to the device according to claim 8, characterized in that, when Toutil is lifted with its earth load, Tax of the collar (10) is below the plane which is parallel to it, of the two points of the articulation of the arm (3) and of the collar (10) together.
10. Perfectionnement au dispositif selon la revendication 8, caractérisé en ce que, lorsque Toutil est soulevé avec sa charge de terre, Taxe du collier (10), d'une part, et les deux points de l'articulation du bras (3) et du collier (10) ensemble, d'autre part, ont un plan commun.10. Improvement to the device according to claim 8, characterized in that, when Toutil is lifted with its earth load, Tax of the collar (10), on the one hand, and the two points of the articulation of the arm (3) and the collar (10) together, on the other hand, have a common plane.
11. Perfectionnement au dispositif selon la revendication 8, caractérisé en ce que, lorsque Toutil est soulevé avec sa charge de terre, Taxe du collier (10) est au-dessus du plan qui lui est parallèle et qui est commun aux deux points de l'articulation du bras (3) et du collier (10) ensemble.11. Improvement to the device according to claim 8, characterized in that, when Toutil is lifted with its earth load, Tax of the collar (10) is above the plane which is parallel to it and which is common to the two points of the articulation of the arm (3) and the collar (10) together.
12. Perfectionnement au dispositif selon les revendications 8, 9, 10, et 11, caractérisé en ce que le bras (3) est divisé en deux branches symétriques, enfourchant les colliers (10 et 11) et le manche (1) de Toutil, jusqu'aux deux points de l'articulation du bras (3) et du collier (10) ensemble.12. Improvement to the device according to claims 8, 9, 10, and 11, characterized in that the arm (3) is divided into two symmetrical branches, straddling the collars (10 and 11) and the handle (1) of Toutil, to the two points of the articulation of the arm (3) and the collar (10) together.
13. Perfectionnement au dispositif existant, caractérisé en ce que les deux colliers (10 et 11) sont liés par deux ressorts de torsion identiques (planche 3/3, figure 4, 12 et 15), travaillant l'un et l'autre dans le sens de la réduction du diamètre des spires.13. Improvement to the existing device, characterized in that the two collars (10 and 11) are connected by two identical torsion springs (plate 3/3, FIG. 4, 12 and 15), working one and the other in the direction of reduction of the diameter of the turns.
L'un de ces ressorts (12) est placé à l'extrémité la plus proche du fer de Toutil, de l'ensemble des deux colliers (10 et 11).One of these springs (12) is placed at the end closest to Toutil's iron, of the set of two collars (10 and 11).
Il est solidaire, à Tune de ses extrémités (13), du collier (10) porteur du bras (3), et à son autre extrémité (14), du collier solidaire du manche (1) de Toutil, par l'un des épaulements de ce dernier collier (11).It is secured, at one of its ends (13), to the collar (10) carrying the arm (3), and at its other end (14), to the collar secured to the handle (1) of Toutil, by one of the shoulders of the latter collar (11).
L'une de ses extrémités n'est solidaire de l'un des deux colliers que dans le sens de la tension du ressort, par une butée dont elle se libère dans T autre sens.One of its ends is secured to one of the two collars only in the direction of the spring tension, by a stop which it releases in the other direction.
Ce ressort est exactement hors tension lorsque le bras (3) est dans sa position initiale, en avant de Toutil.This spring is exactly off when the arm (3) is in its initial position, in front of Toutil.
L'autre ressort (15) est placé à l'autre extrémité de l'ensemble des deux colliers (10 et 11).The other spring (15) is placed at the other end of the assembly of the two collars (10 and 11).
Il fait l'objet des mêmes particularités que le précédent, mais en sens inverse,It is subject to the same features as the previous one, but in reverse,
Ses spires sont dans le même sens que celles du précédent.Its turns are in the same direction as those of the previous one.
Les deux ressorts peuvent n'en former qu'un seul, qui est solidaire, en son milieu, du collier (10) porteur du bras (3), et dont les deux extrémités sont respectivement solidaires des deux épaulements (11) du collier solidaire du manche (1) de Toutil, par une butée dans le sens de Ta tension, butée dont elles se dégagent dans l'autre sens.The two springs can form only one, which is integral, in its middle, with the collar (10) carrying the arm (3), and whose two ends are respectively integral with the two shoulders (11) of the integral collar of the handle (1) of Toutil, by a stop in the direction of your tension, stop from which they emerge in the other direction.
14. Perfectionnement au dispositif existant, caractérisé en ce que les deux colliers (10 et 11) sont liés par un seul ressort de torsi on travaillant dans les deux sens, c'est-à-dire tant dans le sens de la réduction du diamètre des spires que dans le sens de l'augmentation de ce di amètre.14. Improvement to the existing device, characterized in that the two collars (10 and 11) are linked by a single torsion spring working in both directions, that is to say both in the direction of reducing the diameter of the turns and in the direction of increasing this diameter.
Ce ressort est solidaire, à Tune de ses extrémités (14 ou lό) du collier solidaire du manche (1) de Toutil, par l'un des épaulements (11) de ce collier ; et, à l'autre extrémité (13 ou 17), du collier (10) porteur du bras (3).This spring is secured at one of its ends (14 or lό) to the collar secured to the handle (1) of Toutil, by one of the shoulders (11) of this collar; and, at the other end (13 or 17), of the collar (10) carrying the arm (3).
15. Perfectionnement au dispositif existant, et à la revendication 14, caractérisé en ce qu'un second ressort identique à celui de la revendication 14 est placé à l'autre extrémité de l'ensemble des deux colliers (10 et 11) ; ce second ressort ayant ses spires dans le même sens que le premier, ou en sens inverse.15. Improvement to the existing device, and to claim 14, characterized in that a second spring identical to that of claim 14 is placed at the other end of the assembly of the two collars (10 and 11); this second spring having its turns in the same direction as the first, or in the opposite direction.
16 . Perfectionnement aux revendications 13, 14, et 15, caractérisé en ce que l'ancrage de chacun des deux ressorts (12 et 15), ou du ressort unique , sur le périmètre de l'un des deux colliers (10 et 11), est réglable, par exemple par le coulissement d'une extrémité des ressorts, ou de l'une et l'autre des extrémités du ressort unique, dans un oeil solidaire du collier et dans lequel le ressort est bloqué par une vis de serrage. 16. Improvement to claims 13, 14, and 15, characterized in that the anchoring of each of the two springs (12 and 15), or of the single spring, on the perimeter of one of the two collars (10 and 11), is adjustable, for example by sliding one end of the springs, or both ends of the single spring, in an eye secured to the collar and in which the spring is locked by a clamping screw.
EP85904005A 1984-08-16 1985-08-16 Improvement to a device for reducing the effort of lifting soil with a spade or the like Withdrawn EP0190275A1 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
FR8412948A FR2570240A1 (en) 1984-08-16 1984-08-16 Improvement to a device for reducing the effort of lifting soil with a spade or the like
FR8412948 1984-08-16
FR8417354A FR2572876A2 (en) 1984-11-12 1984-11-12 Improvements to a device for reducing the effort of lifting earth with a shovel or the like
FR8417354 1984-11-12
FR8501752 1985-02-06
FR8501752A FR2576738A2 (en) 1985-02-06 1985-02-06 Improvement of a device for reducing the effort of lifting soil with a spade or the like
FR8512190 1985-08-07
FR8512190A FR2589666B1 (en) 1985-08-07 1985-08-07 IMPROVEMENT OF A DEVICE FOR REDUCING THE LIFTING LIFE OF THE EARTH WITH A SPADE OR THE LIKE

Publications (1)

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EP0190275A1 true EP0190275A1 (en) 1986-08-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP85904005A Withdrawn EP0190275A1 (en) 1984-08-16 1985-08-16 Improvement to a device for reducing the effort of lifting soil with a spade or the like

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EP (1) EP0190275A1 (en)
WO (1) WO1986001071A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE460270B (en) * 1986-11-06 1989-09-25 Electrolux Ab DEVICE IN ENGINE-DRIVEN EQUIPMENT
FR2637765B2 (en) * 1986-12-15 1991-08-09 Jousse Luc IMPROVEMENT OF A DEVICE FOR REDUCING THE LIFTING LIFE OF THE EARTH WITH A SPADE OR THE LIKE
US5487577A (en) * 1994-06-27 1996-01-30 Ball; Randall W. Pliant unitary coupling element dual handled shovel
GB0125859D0 (en) * 2001-10-29 2001-12-19 Burden Anthony P Hand/wrist saving device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE531941A (en) *
GB568515A (en) * 1943-09-21 1945-04-09 Edward Benjamin Baugh Improvements in or relating to spades, forks and like tools
LU28368A1 (en) * 1946-03-23
GB629327A (en) * 1950-03-18 1949-09-16 John Francis Seller Improvements relating to garden spades and like implements
FR1020166A (en) * 1950-06-14 1953-02-03 Lightweight, twist grip shovel
US2701727A (en) * 1950-09-11 1955-02-08 Daisy A Lim Stop means for limiting vehicle axle movement
FR1109731A (en) * 1954-10-12 1956-02-01 Device adapting to a spade to facilitate its use
GB923601A (en) * 1961-09-28 1963-04-18 Joseph Caven Mclaughlin Improvements relating to manually operated ground working tools

Non-Patent Citations (1)

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Title
See references of WO8601071A1 *

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