FR2516613A1 - Roller bearing support skate - has flexible spacers ensuring constant distance between rollers during operation - Google Patents

Roller bearing support skate - has flexible spacers ensuring constant distance between rollers during operation Download PDF

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Publication number
FR2516613A1
FR2516613A1 FR8121841A FR8121841A FR2516613A1 FR 2516613 A1 FR2516613 A1 FR 2516613A1 FR 8121841 A FR8121841 A FR 8121841A FR 8121841 A FR8121841 A FR 8121841A FR 2516613 A1 FR2516613 A1 FR 2516613A1
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France
Prior art keywords
rollers
spacers
axes
during operation
roller bearing
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Granted
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FR8121841A
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French (fr)
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FR2516613B1 (en
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Individual
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Individual
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Priority to FR8121841A priority Critical patent/FR2516613A1/en
Publication of FR2516613A1 publication Critical patent/FR2516613A1/en
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Publication of FR2516613B1 publication Critical patent/FR2516613B1/fr
Granted legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00Bearings for parts moving only linearly
    • F16C29/04Ball or roller bearings
    • F16C29/06Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0614Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only
    • F16C29/0616Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only for supporting load essentially in a single direction
    • F16C29/0619Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only for supporting load essentially in a single direction with rollers or needles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/40Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings with loose spacing bodies between the rollers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30Parts of ball or roller bearings
    • F16C33/37Loose spacing bodies
    • F16C33/3713Loose spacing bodies with other rolling elements serving as spacing bodies, e.g. the spacing bodies are in rolling contact with the load carrying rolling elements

Abstract

The recirculating bearing consists of a rectangular block (1) with two slots (2a,b). The depth of the upper slot (2a) is slightly less than the dia. of the rollers (3) whilst the depth of the lower slot is slightly greater. The ends of the core (1) are closed by a cap (8) and a cover (9) forming a semicircular track joining the upper and lower tracks (2a,b). The spacers (5) between the rollers are constructed from small ball bearings enclosed within a close fitting coil spring. The spacers are rigid axially but flex longitudinally. The spacing between the rollers is maintained constant at all times, even around the curved return tracks.

Description

Perfectionw ents apportés aux patins de roulement. Improvements made to the running shoes.

La présente invention concerne les patins de roulement comprenant une série de galets ou rouleaux cylindriques qui sont montés mobiles dans un support comportant un corps et des embouts de retour, de tanière à pouvoir à la fois pivoter autour de leur .?xe et se déplacer perpendiculairement à cet axe suivant un trajet sans fin. The present invention relates to roller skates comprising a series of rollers or cylindrical rollers which are mounted mobile in a support comprising a body and end caps, so that they can both pivot around their axis and move perpendicularly. to this axis following an endless path.

Pour que les galets porteurs soient maintenus dans leur support1 on utilise souvent des galets dont les faces latérales présentent des tétons axiaux ou des portions d'extrémité de diamètre reduit engagés dans des rainures latérales du support ou maintenus par des plaques fixees sur ce dernier. On peut également intercaler entre chaque groupe de galets consécutifs un ou plusieurs éléments de maintien dont les extrémités sont engagées dans des rainures latépales du support ou bien qui sont solidaires en translation des galets et comportent des ergots engagés dans de telles rainures la térales.  So that the supporting rollers are held in their support1 rollers are often used, the lateral faces of which have axial pins or end portions of reduced diameter engaged in lateral grooves of the support or held by plates fixed on the latter. It is also possible to interpose, between each group of consecutive rollers, one or more retaining elements, the ends of which are engaged in lateral grooves of the support or which are integral in translation with the rollers and include lugs engaged in such grooves on the side.

L'expérience montre que, dans les patins jusqu'à présent réalisés, la circulation des galets n'est absolument pas régulière et se produit par à coups. Si, le patin n'étant pas sous charge, on déplace d'un mouvement uniforme le galet situé à l'extrémité avant de la piste porteuse, les galets et les éléments intercalaires é ventuels étant au contact sur la totalité du chemin i retour, on constate que le galet situé à l'extrémité arrière de cette piste -or- teuse se déplace d'un mouvement tout-à-fait irrégulier. Or, pour avoir un fonctionnement correct, il serait nécessaire que les déplia cements des deux galets soient constamment égaux, quelle que soit la valeur de ce déplacement. Experience shows that, in the skids hitherto produced, the circulation of the rollers is absolutely not regular and occurs in spurts. If, with the skate not under load, the roller located at the front end of the carrier track is moved in a uniform movement, the rollers and the possible intermediate elements being in contact over the entire return path, it can be seen that the roller located at the rear end of this stormy track moves in an entirely irregular movement. However, to have correct operation, it would be necessary for the displacements of the two rollers to be constantly equal, whatever the value of this displacement.

La présente invention a pour objet un patin de roulement perfectionne de manière à assurer une circulation régulière des galets. The subject of the present invention is an improved running shoe so as to ensure regular circulation of the rollers.

Le patin de roulement selon l'invention est caractérisé en ce que les éléments cè maintien intercalaires éventuels ou les axes des galets sont maintenus écartés par des entretoises rigides axialement et flexibles radialement qui sont engagées dans les glissières de guidage des axes des galets ou des éléments intercalaires
Grace à cette disposition, la distance entre les axes des galets ou entre les éléments de maintien reste constante si on la mesure sur le trajet de ces axes ou de ces éléments, et la circula tion des galets est parfaitement régulière. En outre, il est possible de donner à la piste des galets, dans les embouts des patins, une forme relativement plus aplatie que dans les patins usuels.
The running shoe according to the invention is characterized in that the elements of any intermediate spacing or the axes of the rollers are kept apart by axially rigid spacers and radially flexible which are engaged in the guide slides of the axes of the rollers or elements dividers
Thanks to this arrangement, the distance between the axes of the rollers or between the holding elements remains constant if it is measured on the path of these axes or of these elements, and the circulation of the rollers is perfectly regular. In addition, it is possible to give the track of the rollers, in the end caps of the pads, a relatively more flattened shape than in the usual pads.

Dans le cas où les entretoises sont disposées entre les axes des galets, les glissières sont parallèles à la piste des galets; dans le cas où ces entretoises sont disposées entre les éléments intercalaires, il faut conformer cette piste en fonction de la forme qu'on donne aux glissières pour respecter l'êquidistance.  In the case where the spacers are arranged between the axes of the rollers, the slides are parallel to the track of the rollers; in the case where these spacers are arranged between the intermediate elements, it is necessary to conform this track according to the shape that is given to the slides to respect the equidistance.

Les entretoises peuvent être constituees par une série de billes jointives dont le nombre est détermine en fonction de la distance à maintenir constante. Ces billes peuvent etre logées à l'intérieur d'un ressort hélicoïdal à spires également jointives. De telleseltretoises s'adaptent parfaitement à la forme des glissières et leur longueur reste pratiquement constante si le diamètre des billes est suffisamment petit par rapport aux rayons de courbure des issières.  The spacers can be constituted by a series of contiguous balls, the number of which is determined as a function of the distance to be kept constant. These balls can be housed inside a helical spring with also contiguous turns. Such struts adapt perfectly to the shape of the slides and their length remains practically constant if the diameter of the balls is small enough compared to the radii of curvature of the issières.

On a décrit ci-après, à titre d'exemples non limitatifs, deux modes de réalisation du patin selon l'invention, avec référence aux dessins annexés dans lesquels
La Figure 1 est une vue en coupe longitudinale d'une partie du patin, dans un premier mode de réalisation,
La Figure 2 en est une coupe transversale,
La Figure 3 est une vue en coupe, à plus grande échelle d'une entretoise,
La Figure 4 est une vue en coupe longitudinale d'une partie du patin, dans un second mode de réalisation,
La Figure 5 en est une coupe transversale.
There have been described below, by way of nonlimiting examples, two embodiments of the pad according to the invention, with reference to the appended drawings in which
FIG. 1 is a view in longitudinal section of a part of the skate, in a first embodiment,
Figure 2 is a cross section,
Figure 3 is a sectional view, on a larger scale of a spacer,
FIG. 4 is a view in longitudinal section of part of the skate, in a second embodiment,
Figure 5 is a cross section.

Tel qu'il est représenté aux Figures 1 et 2, le patin de roulement comprend un corps ou support 1 dans les deux faces opposses duquel sont ménagés des évidements 2a et 2b rectilignes et de section rectangulaire. Des galets cylindriques 3 sont disposés dans les évidements 2a et 2b qui s'étendent sur toute la longueur du corps. As shown in Figures 1 and 2, the running shoe comprises a body or support 1 in the two opposite faces of which are formed recesses 2a and 2b rectilinear and of rectangular section. Cylindrical rollers 3 are arranged in the recesses 2a and 2b which extend over the entire length of the body.

L'évidement 2a a une profondeur légèrement inférieure au diamètre des galets 3 de sorte que les galets qui s'y trouvent font saillie par rapport au corps; sa largeur est sensiblement égale à la longueur des galets, ceux-ci étant ainsi guidés latéralement avec précision.The recess 2a has a depth slightly less than the diameter of the rollers 3 so that the rollers therein project relative to the body; its width is substantially equal to the length of the rollers, the latter being thus guided laterally with precision.

L'évidement 2b a même largeur que l'évidement 2a, mais sa profondeur est supérieure au diamètre des galets.The recess 2b has the same width as the recess 2a, but its depth is greater than the diameter of the rollers.

Les faces latérales des galets 3 portent des tétons axiaux 4 au contact desquels se trouvent des entretoises 5, de même longueur qi sont rigides axialement et flexibles radialement, et maintien- nent écartés les tétons. Ceux-ci, ainsi que les entretoises 5 sont engagés dans des glissières qui sont constituées par des évidements 6 disposés latéralement de part et d'autre des évidements 2a et 2b et fermés par des bandes planes 7.  The lateral faces of the rollers 3 carry axial pins 4 in contact with which there are spacers 5, of the same length which are axially rigid and radially flexible, and keep the pins apart. These, as well as the spacers 5, are engaged in slides which are constituted by recesses 6 arranged laterally on either side of the recesses 2a and 2b and closed by flat strips 7.

A chacune des extrémités du corps 1 se trouve un embout 8 fermé par un couvercle 9, ces deux éléments étant fixés au corps 1 par des boulons non représentés. La partie centrale 10 de l'embout 9 est extérieurement cylindrique et se raccorde aux fonds des évidements 2a et 2b. Par ailleurs, chacune des faces latérales internes de l'embout comporte un évidement 11 qui se raccorde aux évidements 6 et est coaxial à la partie 10. At each end of the body 1 is a nozzle 8 closed by a cover 9, these two elements being fixed to the body 1 by bolts not shown. The central part 10 of the end piece 9 is externally cylindrical and is connected to the bottoms of the recesses 2a and 2b. In addition, each of the internal lateral faces of the endpiece has a recess 11 which is connected to the recesses 6 and is coaxial with the part 10.

Le corps 1, les embouts 8 et les couvercles 9 déterminent le trajet sans fin pour les galets 3. Lorsqu'une charge est déplacée slir 7e patin dans le sens de la flèche F chacun des galets passe suc cssivement dans l'évidement 2a, à l'intérieur de l'un des embouts, dans l'évidement 2b et à l'intérieur de l'autre embout. Les fonds des evidements 2a et 2b et les faces 10 des embouts constituent des pistes de roulement pour les galets. The body 1, the end pieces 8 and the covers 9 determine the endless path for the rollers 3. When a load is moved with the 7th shoe in the direction of the arrow F each of the rollers passes successively through the recess 2a, at inside one of the end pieces, in the recess 2b and inside the other end piece. The bottoms of the recesses 2a and 2b and the faces 10 of the end pieces constitute rolling tracks for the rollers.

Pendant leur trajet, les galets 3 sont maintenus écartés les uns des autres par les entretoises 5. A but moment, la distance entre les axes de deux galets adjacents, mesurée sur le 'cr ,et de ces axes, est cons tante; en particulier, dans un embout, la distance entre les axes, mesurée le long de l'évidement 11, es-t égale à l'écart qui sépare les axes des deux galets adjacents se trouvant dans I'évidement rectiligne 2a ou 2b. On a ainsi une circulation parfai tement régulière des galets. Bien entendu, les dimensions du patin doivent être déterminées de façon que la longueur totale des évidements 6 et 11 soit égale à un multiple entier de la distance séparant les axes de deux galets adjacents. During their journey, the rollers 3 are kept apart from each other by the spacers 5. At the right moment, the distance between the axes of two adjacent rollers, measured on the 'cr, and of these axes, is constant; in particular, in a nozzle, the distance between the axes, measured along the recess 11, is equal to the difference which separates the axes of the two adjacent rollers located in the rectilinear recess 2a or 2b. There is thus a perfectly regular circulation of the rollers. Of course, the dimensions of the shoe must be determined so that the total length of the recesses 6 and 11 is equal to an integer multiple of the distance separating the axes of two adjacent rollers.

La Figure 3 montre un mode de réalisation pratique de l'entretoise 5. Celle-ci est formée d'un ressort hélicoïdal 12 à spires jointives à l'intérieur duquel sont logées des billes 13 egalement jointives, le diamètre des billes étant pratiquement égal au diamètre intérieur du ressort. Figure 3 shows a practical embodiment of the spacer 5. This is formed by a helical spring 12 with contiguous turns inside which are housed balls 13 also contiguous, the diameter of the balls being practically equal to inner diameter of the spring.

Les Figures 4 et 5 montrent un autre mode de réalisation dans lequel les galets 3 ne sont pas munis de tétons latéraux mais sont maintenus par des éléments intercalaires constitués par des ai- guilles 15. Comme l'étaient les tétons 4, les aiguilles 15 sont maintenues écartées entre elles à leurs extrémités, par des entretoises 5' qui sont rigides longitudinalement et flexibles radialement et sont engagées dans des évidements 6' se prolongeant dans les embouts 8' par des évidements 11'.  Figures 4 and 5 show another embodiment in which the rollers 3 are not provided with lateral studs but are held by intermediate elements constituted by needles 15. As were the studs 4, the needles 15 are kept apart from each other at their ends, by spacers 5 'which are rigid longitudinally and flexible radially and are engaged in recesses 6' extending into the end pieces 8 'by recesses 11'.

I1 va de soi que la présente invention ne doit pas être considérée comme limitée aux modes de réalisation décrits et représentés mais en couvre, au contraire, toutes les variantes  It goes without saying that the present invention should not be considered as limited to the embodiments described and shown, but on the contrary covers all variants thereof.

Claims (3)

NFVENDICATIONSNFVENDICATIONS 1. - Patin de roulement comprenant une série de galets ou rouleaux cylindriques qui sont montés mobiles dans un support comportant un corps et des embouts de retour, de manière à pouvoir à fois pivoter autour de leur axe et se déplacer perpendiculairement à cet axe suivant un trajet sans fin, caractérisé en ce que les éléments de maintien intercalaires éventuels ou bien les axes des galets sont maintenus écartés par des entretoises rigides axialement et flexibles radialement qui sont engagées dans des glissières de guidage des axes des galets ou des éléments intercalaires. 1. - Running shoe comprising a series of rollers or cylindrical rollers which are mounted movable in a support comprising a body and return end pieces, so as to be able to both pivot around their axis and move perpendicular to this axis along a endless path, characterized in that the optional intermediate holding elements or else the axes of the rollers are kept apart by axially rigid and radially flexible spacers which are engaged in guide slides of the axes of the rollers or intermediate elements. 2. - Patin de roulement selon la revendication 1, caractéri- sé en ce que les entretoises sont constituées par une série de billes jointives. 2. - Running shoe according to claim 1, characterized in that the spacers are constituted by a series of contiguous balls. 3. - Patin de roulement selon la revendication 2, caractérisé en ce que les billes peuvent être logées à l'intérieur d'un ressort Mlicolcal à spires également jointives.  3. - Running shoe according to claim 2, characterized in that the balls can be housed inside a Mlicolcal spring with also contiguous turns.
FR8121841A 1981-11-17 1981-11-17 Roller bearing support skate - has flexible spacers ensuring constant distance between rollers during operation Granted FR2516613A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8121841A FR2516613A1 (en) 1981-11-17 1981-11-17 Roller bearing support skate - has flexible spacers ensuring constant distance between rollers during operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8121841A FR2516613A1 (en) 1981-11-17 1981-11-17 Roller bearing support skate - has flexible spacers ensuring constant distance between rollers during operation

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FR2516613A1 true FR2516613A1 (en) 1983-05-20
FR2516613B1 FR2516613B1 (en) 1983-12-23

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0351499A2 (en) * 1988-07-16 1990-01-24 Werner Jacob Circulation guide for rolling bodies
EP1203892A3 (en) * 1994-05-20 2003-06-25 Thk Co. Ltd. Rolling guide apparatus
EP2163494A1 (en) * 2004-05-21 2010-03-17 WRH Walter Reist Holding AG Roller element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3357753A (en) * 1964-10-14 1967-12-12 Ionov Valentin Vasiljevich Rolling bearing for machine parts or units performing straight-line motion
FR2196028A5 (en) * 1972-08-12 1974-03-08 Schaeffler Ohg Industriewerk
US3964802A (en) * 1972-12-21 1976-06-22 Nadella Bearing for rectilinear motion

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3357753A (en) * 1964-10-14 1967-12-12 Ionov Valentin Vasiljevich Rolling bearing for machine parts or units performing straight-line motion
FR2196028A5 (en) * 1972-08-12 1974-03-08 Schaeffler Ohg Industriewerk
US3964802A (en) * 1972-12-21 1976-06-22 Nadella Bearing for rectilinear motion

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0351499A2 (en) * 1988-07-16 1990-01-24 Werner Jacob Circulation guide for rolling bodies
EP0351499A3 (en) * 1988-07-16 1990-06-13 Werner Jacob Circulation guide for rolling bodies
EP1203892A3 (en) * 1994-05-20 2003-06-25 Thk Co. Ltd. Rolling guide apparatus
EP2163494A1 (en) * 2004-05-21 2010-03-17 WRH Walter Reist Holding AG Roller element

Also Published As

Publication number Publication date
FR2516613B1 (en) 1983-12-23

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