FR2506868A1 - Ball and socket coupling - has chromium plated outer housing and bronze, spherical inner ball to reduce friction - Google Patents
Ball and socket coupling - has chromium plated outer housing and bronze, spherical inner ball to reduce friction Download PDFInfo
- Publication number
- FR2506868A1 FR2506868A1 FR8110701A FR8110701A FR2506868A1 FR 2506868 A1 FR2506868 A1 FR 2506868A1 FR 8110701 A FR8110701 A FR 8110701A FR 8110701 A FR8110701 A FR 8110701A FR 2506868 A1 FR2506868 A1 FR 2506868A1
- Authority
- FR
- France
- Prior art keywords
- ball
- bronze
- outer housing
- spherical
- reduce friction
- 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- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0614—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
La présente invention est relative à un perfection
nement dans le mode de fabrication des rotules.The present invention relates to a perfection
in the method of manufacturing the ball joints.
On sait qu'un tel composant mécanique est générale
ment constitué par une sphère tronquée selon deux plans
parallèles et percée de façon à se présenter sous la for
me d'une bague extérieurement sphérique sur laquelle est
montée une seconde bague intérieurement sphérique épousant
intimement la première.We know that such a mechanical component is general
ment consisting of a sphere truncated in two planes
parallel and pierced so as to appear under the forum
me of an externally spherical ring on which is
mounted a second internally spherical ring matching
intimately the first.
tes deux bagues sont généralement soumises à des
oscillations et à des rotations combinées qui provoquent un
grippage rapide des surfaces sphériques lorsqu'elles sont
réalisées en acier.your two rings are generally subject to
oscillations and combined rotations that cause a
rapid seizure of spherical surfaces when they are
made of steel.
Pour diminuer le coefficient de frottement, on a
utilisé la combinaison acier-bronze, la bague intérieure
étant en bronze et celle extérieure en acier.To decrease the coefficient of friction, we have
used the steel-bronze combination, the inner ring
being in bronze and the outer one in steel.
Connaissant par ailleurs les bons résultats en ce
qui concerne la diminution des frottements découlant de
l'utilisation du chromage, on a réalisé des rotules dont 'la bague intérieure était chromée.Cependant, les résultats
que l'on pouvait attendre du chromage n'ont pas été satis
faisants en ce qui concerne la longévité du composant.Knowing moreover the good results in this
which concerns the reduction of friction resulting from
the use of chromium plating, we made ball joints whose 'inner ring was chromed. However, the results
that you would expect from chrome plating weren't satisfied
doing with regard to the longevity of the component.
La présente invention, .qui remédie à cet inconvénient,
est remarquable en ce que c'est la surface intérieure
sphérique de la bague extérieure qui est chromée.The present invention, which overcomes this drawback,
is remarkable in that it is the inner surface
spherical outer ring which is chrome.
Sur le dessin annexé à titre d'exemple indicatif
seulement, la figure 1 est une vue en élévation de la ro
tule de l'invention
La figure 2 est une vue en coupe effectuée selon la
ligne II-II de la figure 1;
La figure 3 est une vue en coupe effectuée selon la
ligne III-III de la figure 1 limitée à la bague extérieure.In the attached drawing as an indicative example
only, Figure 1 is an elevational view of the ro
tule of the invention
Figure 2 is a sectional view taken along the
line II-II of Figure 1;
Figure 3 is a sectional view taken along the
line III-III of Figure 1 limited to the outer ring.
En se reportant au dessin, on voit que, de la façon
connue, la rotule est composée de deux bagues 1 et 2.Referring to the drawing, we see that, in the way
known, the ball joint is composed of two rings 1 and 2.
La bague 2 intérieure est constituée à partir d'une
sphère alésée en 3 et tronquée selon deux plans parallèles
et perpendiculaires a' l'axe de l'alésage.The inner ring 2 is formed from a
sphere bored in 3 and truncated in two parallel planes
and perpendicular to the axis of the bore.
La bague 1 extérieure présente en son centre une ca vité sphérique pouvant recevoir, sans jeu, la bague 2. The outer ring 1 has at its center a spherical cavity which can receive, without play, the ring 2.
De la façon connue, la bague 1 présente deux encoches 4, diamétralement opposées, permettant la mise en place de la bague 2 dans celle 1 par un engagement transversal suivi d'une rotation de 900. In known manner, the ring 1 has two notches 4, diametrically opposite, allowing the positioning of the ring 2 in that 1 by a transverse engagement followed by a rotation of 900.
Selon la présente invention, la surface intérieure sphérique de la bague 1 est recouverte d'une couche 5 de chrome dur selon une technique connue. According to the present invention, the spherical inner surface of the ring 1 is covered with a layer 5 of hard chromium according to a known technique.
L'expérience a montré que l'association d'une bague intérieure en bronze et d'une bague extérieure présentant une surface chromée permettait d'obtenir une rotule ayant un excellent comportement lorsqu'elle était soumise-à des mouvements combinés d'oscillation et,ou, de rotation. Experience has shown that the combination of an inner bronze ring and an outer ring with a chrome surface makes it possible to obtain a ball joint having excellent behavior when it is subjected to combined movements of oscillation and , or, rotation.
il a notamment été remarqué qu'il était possible avec une telle rotule d'augmenter la pression de contact entre les deux surfaces sphériques sans pour autant altérer la longévité de la rotule.it has in particular been noted that it is possible with such a ball joint to increase the contact pressure between the two spherical surfaces without altering the longevity of the ball joint.
Ce résultat est d'autant plus surprenant qu'en l'état actuel de la technique, l'emploi du chromage n'avait pas apporté de résultats appréciables et avait été abandonné car il était inutile d'augmenter le prix de revient de la rotule si celle-ci ne devait pas présenter de qualités supérieures comme cela a été constaté. This result is all the more surprising since in the current state of the art, the use of chromium plating had not brought appreciable results and had been abandoned because it was useless to increase the cost price of the ball joint. if it should not have superior qualities as has been found.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8110701A FR2506868A1 (en) | 1981-05-29 | 1981-05-29 | Ball and socket coupling - has chromium plated outer housing and bronze, spherical inner ball to reduce friction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8110701A FR2506868A1 (en) | 1981-05-29 | 1981-05-29 | Ball and socket coupling - has chromium plated outer housing and bronze, spherical inner ball to reduce friction |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2506868A1 true FR2506868A1 (en) | 1982-12-03 |
Family
ID=9259010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8110701A Withdrawn FR2506868A1 (en) | 1981-05-29 | 1981-05-29 | Ball and socket coupling - has chromium plated outer housing and bronze, spherical inner ball to reduce friction |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2506868A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4466631A (en) * | 1982-09-27 | 1984-08-21 | Allis-Chalmers Corporation | Ball joint assembly for draft arm |
DE9418745U1 (en) * | 1994-11-14 | 1995-02-02 | Barkemeyer-Schiffstechnik GmbH, 21465 Reinbek | Spherical bearing for a rudder post |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB557775A (en) * | 1940-12-06 | 1943-12-06 | Thompson Prod Inc | Improvements in or relating to joint constructions, especially ball and socket joints and ball and socket tie rod joints, and methods of making the same |
US2781238A (en) * | 1953-10-23 | 1957-02-12 | Richard O Carter | Ball type bearing for rod end |
US2804679A (en) * | 1954-08-23 | 1957-09-03 | Southwest Products Co | Method of making bearings and rod end bearings |
US3371398A (en) * | 1965-08-03 | 1968-03-05 | Fafnir Bearing Co | Method of making plain spherical bearings |
-
1981
- 1981-05-29 FR FR8110701A patent/FR2506868A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB557775A (en) * | 1940-12-06 | 1943-12-06 | Thompson Prod Inc | Improvements in or relating to joint constructions, especially ball and socket joints and ball and socket tie rod joints, and methods of making the same |
US2781238A (en) * | 1953-10-23 | 1957-02-12 | Richard O Carter | Ball type bearing for rod end |
US2804679A (en) * | 1954-08-23 | 1957-09-03 | Southwest Products Co | Method of making bearings and rod end bearings |
US3371398A (en) * | 1965-08-03 | 1968-03-05 | Fafnir Bearing Co | Method of making plain spherical bearings |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4466631A (en) * | 1982-09-27 | 1984-08-21 | Allis-Chalmers Corporation | Ball joint assembly for draft arm |
DE9418745U1 (en) * | 1994-11-14 | 1995-02-02 | Barkemeyer-Schiffstechnik GmbH, 21465 Reinbek | Spherical bearing for a rudder post |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |