DE8906488U1 - Ball head for photographic tripods - Google Patents
Ball head for photographic tripodsInfo
- Publication number
- DE8906488U1 DE8906488U1 DE8906488U DE8906488U DE8906488U1 DE 8906488 U1 DE8906488 U1 DE 8906488U1 DE 8906488 U DE8906488 U DE 8906488U DE 8906488 U DE8906488 U DE 8906488U DE 8906488 U1 DE8906488 U1 DE 8906488U1
- Authority
- DE
- Germany
- Prior art keywords
- ball
- balls
- pan
- screw
- eccentric
- 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.)
- Expired
Links
- 230000005540 biological transmission Effects 0.000 claims description 2
- 244000309464 bull Species 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
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
- F16C11/10—Arrangements for locking
- F16C11/103—Arrangements for locking frictionally clamped
- F16C11/106—Arrangements for locking frictionally clamped for ball joints
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
-
- 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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/02—Locking means
- F16M2200/021—Locking means for rotational movement
- F16M2200/022—Locking means for rotational movement by friction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Accessories Of Cameras (AREA)
Description
• # ft ft · I &igr; &igr; &igr;« t»•# ft ft · I &igr;&igr;&igr;« t»
I » » II· &Igr;·(|I » » II· &Igr;·(|
• I III I ··· 11)1• I III I ··· 11)1
• •••I ill ■••••I ill ■
Die Neuerung betrifft einen Kugelkopf für fotografische Stative, bei welchem zur Festklemmung der den Auflageteller tragenden Kugel eine Pfanne durch die Wirkung einier Schraube oder eines Exzenters unter Zwischenschaltung von Kraftübertrsgungsmittein an die ünterflache der Kugel angedrückt wird,The innovation concerns a ball head for photographic tripods, in which a pan is pressed against the underside of the ball by the action of a screw or an eccentric with the interposition of force transmission means in order to clamp the ball carrying the support plate.
Aufgabe war es, einen solchen Kopf so aussugesisit^n, daß eine sehr ffekti i erreicht wird bei görtegau) Pe?tigU!B-ggäuf$s&£4«The task was to design such a head in such a way that a very effective i is achieved at görtegau) Pe?tigU!B-ggäuf$s&£4«
Sie wilier dadurch gelöst, daß di© Mittal zur Kraftübertragung von unter der Pfanne in einer Ebene ringförmig angeordneten Kugeln und !Mindestens &p&£. »,eiteren "ber den Ringumfsng verteilt auf diesenaufliegenden Kugeln bestehen, die ihrerseits an der Unterseite der Pfanne anliegen. Die von der Schraube oder dem Exzenter ausgehende Kraft 'wird dabei üi>f-v die nß?h dem Prinzip des Kniehebel &bgr; zusammenwirkenden Kugeln der unreren und der oberen Ebene auf die Pfanne übertragen.It is solved by the fact that the means for transmitting force consist of balls arranged in a ring in a plane under the pan and at least 40 more balls distributed around the circumference of the ring resting on these balls, which in turn rest on the underside of the pan. The force emanating from the screw or the eccentric is transmitted to the pan via the balls of the lower and upper planes, which interact according to the principle of the toggle lever.
Vorzugswelse wirkt die Klemmschraube auf eine Kugel, die in der Ebene der ringförmig angeordneten unteren Kugeln liegt und von außen an diesen aruiegt, so daß ein radialer Druck der Klemmschraube auf dle'je Kugel wieder nach dem Prinzip des Kniehebels auf die benachbarten Kugeln der gleichen Ebene übertragen und von diesen in gleicher Weise in axialer Richtung auf die Pfanne weiter gpleitet wird.Preferably, the clamping screw acts on a ball that lies in the plane of the ring-shaped lower balls and rests against them from the outside, so that a radial pressure of the clamping screw on each ball is again transferred to the neighboring balls in the same plane according to the principle of the toggle lever and is then passed on by them in the same way in the axial direction to the socket.
Dieser Aufbau ermöglicht eine praktisch verlustfreie Umlenkung der radialen Kraft der Klemmschraube in eine axiale auf die Kugelpfanne. Der Druck auf deren Unterseite ist überall gleich; es gibt kein Verkanten. Die Pertigung der Teile kann ohne besondere Anforderungen an die Genauigkeit erfolgen.This design allows the radial force of the clamping screw to be diverted into an axial force on the ball socket with virtually no loss. The pressure on the underside is the same everywhere; there is no tilting. The parts can be finished without any special requirements for accuracy.
Ein Ausführungsbelsplel der Neuerung ist in den Zeichnungen in mehreren Schnitten dargestellt.An example of the innovation is shown in the drawings in several sections.
Das Gehäuse des Kugelkopfes ist mit 1 bezeichnet. In ihm sitzt die Kugel 2, deren Hals den Auflageteller 3 für eine fotografische Kamera oder ein sonstiges Gerät trägt.The housing of the ball head is marked 1. In it sits the ball 2, the neck of which carries the support plate 3 for a photographic camera or other device.
Von unten liegt an der Kugel 2 eine Kugelpfanne 4 an, unter der sAch ein Gehäuseboden 5 befindet. An der Unterseite der Kugelpfanne H 1st ein ringförmiger Kugelkäfig ausgebildet, der nach unten vom Gehäuseboden 5 abgeschlossen wird. Dieser Käfig 1st einreihig nahezu mit Kugeln 6 entsprechenden Durchmessers gefüllt.A ball socket 4 rests against the ball 2 from below, under which there is also a housing base 5. On the underside of the ball socket H there is an annular ball cage which is closed off at the bottom by the housing base 5. This cage is filled in a single row with balls 6 of almost the same diameter.
Um Je 120° gegeneinander versetzt liegen auf dieser Kugelreihe drei weitere Kugeln 7» auf denen von oben die Kugelpfanne 4 aufsitzt.Three further balls 7" are located on this row of balls, offset from each other by 120°, on which the ball socket 4 sits from above.
-Z--Z-
It Il Il 1(1 Il IIt Il Il 1(1 Il I
1111*11 I II·1111*11 I II·
f t Mit ti IIM*t Il Il ItIIl I I I If t With ti IIM*t Il Il ItIIl I I I I
iff '·· &phgr; &Lgr; 9 i iff '·· φ �L 9 i
-2--2-
Radial in das Gehäuse 1 eingesetzt ist eine Klemmschraube 8, deren Ende auf eine Kugel 9 wirkt, dlö von außen an der Kugelreihe 6 anliegt. Größe und Anzahl der Kugeln 6 und der Durchmesser des Kugelkäfiges sind so aufeinander abgestimmt, daß die Kugeln 7 und 9 etwas zwischen die jeweils anliegenden Kugeln 6 eintauchen können.A clamping screw 8 is inserted radially into the housing 1, the end of which acts on a ball 9, which rests on the row of balls 6 from the outside. The size and number of balls 6 and the diameter of the ball cage are coordinated so that the balls 7 and 9 can be inserted slightly between the adjacent balls 6.
Wird die Klesimschraube 8 nach &iacgr;&idigr;&iacgr;&eegr;&tgr;-&eegr; gedreht, ßo drückt sie die Kugel 9 gegen die beiden anliegenden Kugeln 6. Der Druck pflanzt sich gleichmäßig auf alle Kugeln 6 fort. Die Zwischenräume, in öi,e die Kugeln 7 eintauchen, werden verkleinert. Letztere weichen nach oben aus und pressen die Kugelpfanne H gegen die Kugel 2.If the clamping screw 8 is turned in the direction of &iacgr;&idigr;&iacgr;&eegr;&tgr;-&eegr;, it presses the ball 9 against the two adjacent balls 6. The pressure is spread evenly over all balls 6. The gaps into which the balls 7 are immersed are reduced. The latter move upwards and press the ball socket H against the ball 2.
Das Zusammenwirken der Kugeln 6 einerseits und 9 bz^ 7 andererseits ist wie bei einem Kniehebel. Die Komponentenzerl^gung der Klemmkraft wird durch die mögliche Eintauchtiefe der Kugeln 9 bzw. 7 und damit durch die Zwischenräume der Jeweils angrenzenden Kugeln 6 bestimmt. Zur Optimierung können einfache Zwischenscheiben 10 eingelegt werden.The interaction of the balls 6 on the one hand and 9 or 7 on the other hand is like a toggle lever. The component breakdown of the clamping force is determined by the possible immersion depth of the balls 9 or 7 and thus by the spaces between the adjacent balls 6. Simple intermediate disks 10 can be inserted for optimization.
&igr; &igr; &igr; &igr; &igr; ti·&igr;&igr;&igr;&igr;&igr; ti·
Il · t » I It f I IIl · t » I It f I I
* (Il II··* (II··
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8906488U DE8906488U1 (en) | 1989-05-26 | 1989-05-26 | Ball head for photographic tripods |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8906488U DE8906488U1 (en) | 1989-05-26 | 1989-05-26 | Ball head for photographic tripods |
Publications (1)
Publication Number | Publication Date |
---|---|
DE8906488U1 true DE8906488U1 (en) | 1989-08-03 |
Family
ID=6839570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8906488U Expired DE8906488U1 (en) | 1989-05-26 | 1989-05-26 | Ball head for photographic tripods |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE8906488U1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997037144A1 (en) * | 1996-03-29 | 1997-10-09 | Merlo Werner O | Joint mechanisms and connector |
FR2799807A1 (en) * | 1999-10-14 | 2001-04-20 | Gitzo Holding | Lock for ball-and -socket joint mounted in cylindrical sleeve comprises two disks below the socket with grooves which face each other to form annular channel containing balls and rod inserted through bore in sleeve which is pushed |
-
1989
- 1989-05-26 DE DE8906488U patent/DE8906488U1/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997037144A1 (en) * | 1996-03-29 | 1997-10-09 | Merlo Werner O | Joint mechanisms and connector |
FR2799807A1 (en) * | 1999-10-14 | 2001-04-20 | Gitzo Holding | Lock for ball-and -socket joint mounted in cylindrical sleeve comprises two disks below the socket with grooves which face each other to form annular channel containing balls and rod inserted through bore in sleeve which is pushed |
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