US20080199248A1 - Ball-and-socket joint connection - Google Patents
Ball-and-socket joint connection Download PDFInfo
- Publication number
- US20080199248A1 US20080199248A1 US12/148,431 US14843108A US2008199248A1 US 20080199248 A1 US20080199248 A1 US 20080199248A1 US 14843108 A US14843108 A US 14843108A US 2008199248 A1 US2008199248 A1 US 2008199248A1
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- US
- United States
- Prior art keywords
- ball
- socket
- component
- socket joint
- joint connection
- 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.)
- Abandoned
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Classifications
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- 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
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0642—Special features of the plug or cover on the blind end of the socket
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- 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
- F16C11/0604—Construction of the male part
- F16C11/0609—Construction of the male part made from two or more parts
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- 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
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- 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
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0657—Construction or details of the socket member the socket member being mainly made of plastics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32008—Plural distinct articulation axes
- Y10T403/32032—Plural ball and socket
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32549—Articulated members including limit means
- Y10T403/32557—Articulated members including limit means for pivotal motion
- Y10T403/32565—Ball and socket with restricted movement about one axis
- Y10T403/32573—Ball stud passes through confining opening
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
- Y10T403/32631—Universal ball and socket
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
- Y10T403/32631—Universal ball and socket
- Y10T403/32681—Composite ball
- Y10T403/32704—Stud extends into ball
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
- Y10T403/32861—T-pivot, e.g., wrist pin, etc.
- Y10T403/32918—T-pivot, e.g., wrist pin, etc. fork and tongue
Definitions
- the invention is concerned with a ball-and-socket joint connection, in particular for a piston/cylinder assembly, having a retaining part which has a fastening point for fixedly arranging it, and a rod part which is arranged pivotably in a pivoting-angle region in a pivoting plane via a ball-and-socket joint on the retaining part, the ball-and-socket joint having a ball socket with a spherical-cap-shaped recess of the ball socket, which recess serves as a ball seat and has a radially directed spherical-cap opening through which a ball-like component can be introduced into the ball seat and can be mounted moveably in the ball socket, the said component being gripped from behind by a bearing shoulder of the ball socket.
- the invention may provide a ball-and-socket joint connection which permits a simple construction and a low loading of the retaining part and also of the component on which the retaining part is to be fixedly arranged.
- the fastening point and the ball-and-socket joint are situated approximately in the pivoting plane and the rod part protrudes from the ball-like component out of a journal slot which extends radially to the ball seat in a sector-like manner, i.e., a section of the retaining part is cut out to form the journal slot, at least corresponding to the pivoting angle and has a width corresponding at least to the thickness of the rod part.
- the force flux of the force to be transmitted by the ball-and-socket joint connection is therefore directed largely towards the pivoting plane, so that at the fastening point essentially just a tensile or compressive force, but not a force producing a bending moment, has to be absorbed by the retaining part and the component on which the retaining part is fixedly arranged.
- This permits a lightweight design of these parts.
- the journal effectively reduces the load on the ball and socket joint.
- a spherical-cap opening required for installing the ball-like component can extend at an angle to the pivoting plane of the rod part or towards the pivoting plane of the rod part.
- ball socket prefferably arranged on the retaining part.
- the ball-like component can be a ball which has a ball journal, in particular a piston rod, which forms the rod part, extends radially and is guided from the ball through the journal slot of the retaining part, which extends at an angle to the spherical-cap opening.
- the ball Since the spherical-cap opening is not situated in the force-flux direction, the ball is supported securely in the ball socket when subjected to a tensile or compressive load.
- journal slot preferably extends at an angle of approximately 90° to the spherical-cap opening.
- the ball-like component can be a ball which has a ball journal, in particular a piston rod, which forms the rod part, extends radially and is guided from the ball through the journal slot of the retaining part, the spherical-cap opening lying approximately diametrically opposite the journal slot with respect to the ball seat and being closable by a spherical-cap base on which the ball-like component can be supported.
- the spherical-cap base may be a separately inserted component or else may be formed by the component on which the retaining part is to be fixedly arranged.
- the ball is securely supported when subjected to a tensile or compressive load.
- the ball and ball journal may be produced separately, the ball being provided with a radially directed threaded hole in which the ball journal, which is provided at its one end with a corresponding thread, is screwed.
- the production process in this case is particularly simple if the thread of the threaded hole is a self-forming thread which is produced by screwing the thread of the ball journal into a hole of the ball.
- the ball can have a recess which opens radially outwards and extends approximately coaxially to the spherical-cap opening, it being possible for a retaining tool to be introduced through the spherical-cap opening into the recess.
- journal slot extends in an end region opening outwards approximately axially to the spherical-cap opening, then the ball together with the rod part already situated on it can be fitted in a simple manner.
- the ball socket can be arranged on the rod part, the ball socket preferably being arranged on a ball-socket holder which is arranged axially, in particular coaxially, on one end of the rod part.
- the ball-socket holder is connected to the rod part by means of a screw connection, that end of the rod part which is provided with a thread being screwed into a threaded hole of the ball-socket holder.
- the ball-like component can have a ball section which can be introduced through the spherical-cap opening into the ball socket and can be arranged on the retaining part by means of one or more retaining elements.
- the retaining part can be an axle which extends approximately transversely to the pivoting plane and is fastened at one or both ends to the retaining part.
- the end or the ends of the axle can be formed integrally with the ball section.
- the axle is connected to the ball section in a simple manner by the axle being an axle journal which protrudes through a corresponding hole of the ball section.
- the ball socket has a locking cage which is inserted into a recess of the retaining part, the rod part or the ball-socket holder.
- the insertion of the spherical component can be carried out in a particularly simple manner if the locking cage has retaining arms which protrude away freely from the ball socket, are arranged in the manner of a circle and are radially moveable and also extend in the direction of extent of the spherical-cap opening and form the spherical-cap opening between them.
- the locking cage can have, at one or both ends, radially outwardly directed catches which, with the locking cage inserted into the recess of the retaining part, the rod part or the ball-socket holder, grip behind the mouth region or the mouth regions of the opening.
- a fixed arrangement of the retaining part on the retaining component can be achieved by the fastening point being formed by one or more recesses, in particular by elongated holes or by a clamping-wedge connection.
- FIG. 1 shows a cross section of a side view of a first exemplary embodiment of a ball-and-socket joint connection according to the present invention.
- FIG. 2 shows a cross section of a side view of a second exemplary embodiment of a ball-and-socket joint connection according to the present invention.
- FIG. 3 shows a cross section of a plan view of the ball-and-socket joint connection according to FIG. 2 according to the present invention.
- FIG. 4 shows a perspective view of the retaining part of the ball-and-socket joint connection according to FIG. 2 of the present invention.
- FIG. 5 shows a view of a third exemplary embodiment of a ball-and-socket joint connection of the present invention.
- FIG. 6 shows a side view of the ball-and-socket joint connection according to FIG. 5 of the present invention.
- FIG. 7 shows a cross section of a plan view of the ball-and-socket joint connection according to FIG. 5 of the present invention.
- FIG. 8 shows a perspective view of a first exemplary embodiment of the retaining part of the ball-and-socket joint connection according to FIG. 5 of the present invention.
- FIG. 9 shows a perspective view of a second exemplary embodiment of the retaining part of the ball-and-socket joint connection according to FIG. 5 of the present invention.
- FIG. 10 shows a cross section of a side view of a fourth exemplary embodiment of a ball-and-socket joint connection of the present invention.
- FIG. 11 shows a cross section of a side view of a fifth exemplary embodiment of a ball-and-socket joint connection of the present invention.
- FIG. 12 shows a cross section of a side view of a sixth exemplary embodiment of a ball-and-socket joint connection of the present invention.
- FIG. 13 shows a view of a retaining part of the ball-and-socket joint connection according to FIG. 12 of the present invention.
- FIG. 14 shows a cross section of the retaining part along line XIV-XIV in FIG. 13 of the present invention.
- FIG. 15 shows a rear view of the retaining part according to FIG. 13 of the present invention.
- FIG. 16 shows a perspective view of the retaining part according to FIG. 13 of the present invention.
- FIG. 17 shows a view of a spherical-cap base of the ball-and-socket joint connection according to FIG. 12 of the present invention.
- FIG. 18 shows a cross section of the spherical-cap base along line XVIII-XVIII in FIG. 17 of the present invention.
- FIG. 19 shows a perspective view of the spherical-cap base according to FIG. 17 .
- the ball-and-socket joint connections illustrated in the figures have a retaining part 1 , 1 ′, 1 ′′, 1 ′′′, 1 ′′′′, 1 ′′′′′ which can be arranged fixedly on a component (not illustrated) of a motor vehicle, such as the body or a door.
- a piston rod 3 of a piston/cylinder unit (not illustrated specifically) of a door arrester is connected to the retaining part 1 , 1 ′, 1 ′′, 1 ′′′, 1 ′′′′, 1 ′′′′′ via a ball-and-socket joint 2 .
- the ball-and-socket joint 2 has a ball socket 4 which has a spherical-cap-shaped recess 6 which forms a ball seat and has a radially directed spherical-cap opening 5 .
- a ball-like component such as a ball 7 or a ball section 8
- the ball socket 4 extends towards the spherical-cap opening 5 beyond the central line thereof and, in the process, forms a bearing shoulder 9 which grips the ball-like component from behind and by means of which the ball-like component is retained in the spherical-cap-shaped recess 6 .
- the ball-like component sits with so much press fit in the spherical-cap-shaped recess 6 that this connection is free from play, but the ball-like component can still be rotated in the spherical-cap-shaped recess 6 .
- the retaining part 1 is designed as a fork piece of U-shaped cross section which has, on its one end region, an elongated hole 10 which forms a fastening point and through which a screw (not illustrated) for screwing onto the body or the door of the motor vehicle can be guided.
- a continuous recess 11 of round cross section Formed on the other end region of the fork piece, transversely to its longitudinal extent, is a continuous recess 11 of round cross section, into which is inserted a locking cage 12 which is formed as a wear-resistant plastic part and has the ball socket 4 .
- the cross-sectional contour of the locking cage 12 corresponds to the cross section of the recess 11 of the fork piece.
- the locking cage 12 Starting from the spherical-cap-shaped recess 6 , the locking cage 12 has, protruding away freely coaxially to the recess 11 , a retaining ring 13 which is of radially resilient design and the opening of which forms the spherical-cap opening 5 .
- retaining arms which protrude away freely from the ball socket 4 , are moveable in a radially resilient manner and form the spherical-cap opening between them could also be arranged in a manner forming a circle.
- the locking cage 12 has catches 14 which are directed radially outwards, grip behind the mouth regions of the recess 11 and thereby secure the locking cage 12 axially in the recess 11 .
- the ball socket In the direction of longitudinal extent of the fork piece and in the plane formed between and parallel to the fork limbs 26 thereof, the ball socket has a radial, slot-like journal opening 18 which is directed towards its centre and through which the free end of the piston rod 3 protrudes into the ball socket 4 and is screwed there to the ball 7 .
- the ball 7 has a radially directed threaded hole 15 into which the piston rod 3 , which is provided at its end with a corresponding thread 16 , is screwed.
- the plane formed between the fork limbs 26 and the plane in which the slot-like journal opening 18 is situated form a pivoting plane of the piston rod 3 , and the opening of the longitudinal side of the fork piece forms a journal slot 19 in which the piston rod 3 can be pivoted.
- the ball 7 does not rotate when the piston rod 3 is being screwed into the threaded hole 15 , the ball has a recess 17 which opens radially outwards, is directed approximately coaxially to the spherical-cap opening 5 and into which a tool can be introduced from the outside through the spherical-cap opening 5 and is used to prevent rotation of the ball 7 during the screwing-in of the piston rod 3 .
- the retaining part 1 ′ is formed integrally with the ball socket 4 as a plastic cast part.
- the retaining part 1 ′ has an elongated hole 10 on its one end region for fastening it to a body part or a door.
- the spherical-cap opening 5 extends from the spherical-cap-shaped recess 11 transversely to the longitudinal extent of the piston rod 3 , and the piston rod 3 is guided through a journal slot 19 ′, which extends approximately at right angles to it, in the retaining part 1 ′ into the spherical-cap-shaped recess 11 and, in the same manner as in FIG. 1 , is screwed to the ball 7 arranged for this purpose.
- the journal slot 19 ′ which is continuous radially to the ball socket 4 and is formed at an angle of approximately 90° to the extent of the spherical-cap opening 5 , extends through approximately 90° radially to the ball socket 4 .
- the width of the journal slot 19 is slightly larger than the diameter of the piston rod 3 .
- the one end region of the journal slot 19 ′′′′′ can extend opening outwards approximately axially to the spherical-cap opening 5 , so that the ball 7 can be connected to the piston rod 3 even before it is introduced into the ball socket 4 .
- FIGS. 5 to 8 differs from the exemplary embodiment of FIGS. 2 to 4 only with regard to the fastening point.
- the latter is designed as a T-shaped groove 20 which extends transversely to the pivoting plane of the piston rod 3 and into which a clamping wedge of corresponding shape arranged on the body or the door can be introduced and forms a clamping-wedge connection.
- the exemplary embodiment of FIG. 9 also has a fastening point of this type.
- the ball socket 4 is arranged on a ball-socket holder 21 which is connected coaxially to the free end of the piston rod 3 by means of a screw connection.
- This free end of the piston rod 3 here is provided with a thread 16 which is screwed in a corresponding threaded hole 22 of the ball-socket holder 21 .
- the construction of the retaining part 1 corresponds to the fork piece of the exemplary embodiment of FIG. 1 .
- the ball socket 4 has a locking cage 12 which is inserted into a continuous recess 23 of the ball-socket holder 21 and is secured by catches 14 .
- the recess 23 extends approximately at right angles to the pivoting plane of the piston rod.
- a passage opening 24 is formed in the ball socket 4 lying opposite the spherical-cap opening 5 .
- the ball section 8 is mounted pivotably in the ball socket 4 and has spacer journals 25 coaxially on both sides which protrude through the spherical-cap opening 5 and the passage opening 24 and with their end sides are in contact with the inner sides of the fork limbs 26 of the fork piece.
- the ball-socket holder 21 is always retained centrally between the fork limbs 26 .
- the ball section 8 Coaxially to the spacer journals 25 , the ball section 8 has an axle 27 protruding on both sides and, protruding through corresponding holes 28 in the fork limbs 26 , is fastened thereon.
- the axle 27 has, at its one end, a radially expanding head 29 which bears against the outer side of the one fork limb 26 while the other end of the axle 27 is radially extended to form a rivet head 30 bearing against the outer side of the other fork limb 26 .
- the axle 27 is an axle journal which protrudes through a corresponding hole 31 of the ball section 8 while, in FIG. 11 , the ends of the axle 27 ′ are formed integrally with the ball section 8 .
- the retaining part 1 ′′ is a plastic part and also integrally has the ball socket 4 .
- the spherical-cap opening 5 opens into the spherical-cap-shaped recess 11 in a manner opposed to the journal slot 19 ′′.
- the piston rod 3 which protrudes through the journal slot 19 ′′ is provided with a thread 16 at its free end and is screwed in a corresponding threaded hole 15 of the ball 7 .
- the mouth region of the spherical-cap opening 5 is closed by a spherical-cap base 32 which is of spherical-cap-shaped design corresponding to the ball 7 on the side facing the latter.
- the ball 7 is in contact with this spherical-cap-shaped contour of the spherical-cap base 32 .
- two guide journals 33 protrude radially from the circular spherical-cap base 32 and, in corresponding recesses 34 in the retaining part 1 ′′, form a means of securing the spherical-cap base 32 against rotation.
- the retaining part 1 ′′ has radially extending tabs 35 which are provided with recesses 36 which are directed axially to the direction of longitudinal extent of the piston rod 3 and form fastening points for fastening it to the body or the door by means of screws.
- the journal slot 19 ′′ is formed in accordance with the journal slot 19 ′ of FIGS. 2 to 4 .
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
A ball and socket joint connection includes a retaining part having a fastening point and a journal slot; a ball-like component arranged in the retaining part; a rod part which is pivotable in a pivoting plane relative to the retaining part, the pivoting plane passing through the journal slot and the fastening point. A ball socket fixed to the rod part has a spherical recess in which the ball-like component is rotatably seated, a radially directed opening for receiving the ball-like component in the spherical recess, and a bearing shoulder between the spherical recess and the opening, the bearing shoulder retaining the ball-like component in the spherical recess.
Description
- This is a divisional of application Ser. No. 10/842,784, filed on May 11, 2004, Priority is claimed from German Patent Application No. 103 22 265.0, filed on May 16, 2003. The entire content of application Ser. No. 10/842,784 is incorporated herein by reference.
- The invention is concerned with a ball-and-socket joint connection, in particular for a piston/cylinder assembly, having a retaining part which has a fastening point for fixedly arranging it, and a rod part which is arranged pivotably in a pivoting-angle region in a pivoting plane via a ball-and-socket joint on the retaining part, the ball-and-socket joint having a ball socket with a spherical-cap-shaped recess of the ball socket, which recess serves as a ball seat and has a radially directed spherical-cap opening through which a ball-like component can be introduced into the ball seat and can be mounted moveably in the ball socket, the said component being gripped from behind by a bearing shoulder of the ball socket.
- In the case of ball-and-socket joint connections of this type, it is known to align the fastening point for fixedly arranging the retaining part transversely to the pivoting plane of the rod part. As a result, the force flux of the ball-and-socket joint connection results in bending moments on the fastening point and on the component on which the retaining part is to be fixedly arranged. This necessitates an expensive and solid construction of this component, in particular a body panel of a motor vehicle.
- Therefore the invention may provide a ball-and-socket joint connection which permits a simple construction and a low loading of the retaining part and also of the component on which the retaining part is to be fixedly arranged.
- This may be achieved according to the invention in that the fastening point and the ball-and-socket joint are situated approximately in the pivoting plane and the rod part protrudes from the ball-like component out of a journal slot which extends radially to the ball seat in a sector-like manner, i.e., a section of the retaining part is cut out to form the journal slot, at least corresponding to the pivoting angle and has a width corresponding at least to the thickness of the rod part.
- The force flux of the force to be transmitted by the ball-and-socket joint connection is therefore directed largely towards the pivoting plane, so that at the fastening point essentially just a tensile or compressive force, but not a force producing a bending moment, has to be absorbed by the retaining part and the component on which the retaining part is fixedly arranged. This permits a lightweight design of these parts. In other words, the journal effectively reduces the load on the ball and socket joint.
- A spherical-cap opening required for installing the ball-like component can extend at an angle to the pivoting plane of the rod part or towards the pivoting plane of the rod part.
- One design possibility is for the ball socket to be arranged on the retaining part.
- In this case, in a simple construction, the ball-like component can be a ball which has a ball journal, in particular a piston rod, which forms the rod part, extends radially and is guided from the ball through the journal slot of the retaining part, which extends at an angle to the spherical-cap opening.
- Since the spherical-cap opening is not situated in the force-flux direction, the ball is supported securely in the ball socket when subjected to a tensile or compressive load.
- In this case, the journal slot preferably extends at an angle of approximately 90° to the spherical-cap opening.
- In another, likewise simply constructed design, the ball-like component can be a ball which has a ball journal, in particular a piston rod, which forms the rod part, extends radially and is guided from the ball through the journal slot of the retaining part, the spherical-cap opening lying approximately diametrically opposite the journal slot with respect to the ball seat and being closable by a spherical-cap base on which the ball-like component can be supported.
- In this case, the spherical-cap base may be a separately inserted component or else may be formed by the component on which the retaining part is to be fixedly arranged.
- In this case too, the ball is securely supported when subjected to a tensile or compressive load.
- For simple production, the ball and ball journal may be produced separately, the ball being provided with a radially directed threaded hole in which the ball journal, which is provided at its one end with a corresponding thread, is screwed.
- The production process in this case is particularly simple if the thread of the threaded hole is a self-forming thread which is produced by screwing the thread of the ball journal into a hole of the ball.
- To rotationally secure it while the ball journal is being screwed into the ball, the ball can have a recess which opens radially outwards and extends approximately coaxially to the spherical-cap opening, it being possible for a retaining tool to be introduced through the spherical-cap opening into the recess.
- If the journal slot extends in an end region opening outwards approximately axially to the spherical-cap opening, then the ball together with the rod part already situated on it can be fitted in a simple manner.
- In a further, likewise simply constructed design, the ball socket can be arranged on the rod part, the ball socket preferably being arranged on a ball-socket holder which is arranged axially, in particular coaxially, on one end of the rod part.
- In this case, in a simple design, the ball-socket holder is connected to the rod part by means of a screw connection, that end of the rod part which is provided with a thread being screwed into a threaded hole of the ball-socket holder.
- In order to be able to arrange the ball-like component on the retaining part in a simple manner, the ball-like component can have a ball section which can be introduced through the spherical-cap opening into the ball socket and can be arranged on the retaining part by means of one or more retaining elements.
- To fasten the ball-like component on the retaining part, in one design the retaining part can be an axle which extends approximately transversely to the pivoting plane and is fastened at one or both ends to the retaining part.
- In another design, the end or the ends of the axle can be formed integrally with the ball section.
- The axle is connected to the ball section in a simple manner by the axle being an axle journal which protrudes through a corresponding hole of the ball section.
- For simple insertion of the ball-like component into the ball socket and subsequent securing therein, the ball socket has a locking cage which is inserted into a recess of the retaining part, the rod part or the ball-socket holder.
- In this case, the insertion of the spherical component can be carried out in a particularly simple manner if the locking cage has retaining arms which protrude away freely from the ball socket, are arranged in the manner of a circle and are radially moveable and also extend in the direction of extent of the spherical-cap opening and form the spherical-cap opening between them.
- In order to simply secure the locking cage in the recess of the retaining part, the locking cage can have, at one or both ends, radially outwardly directed catches which, with the locking cage inserted into the recess of the retaining part, the rod part or the ball-socket holder, grip behind the mouth region or the mouth regions of the opening.
- A fixed arrangement of the retaining part on the retaining component can be achieved by the fastening point being formed by one or more recesses, in particular by elongated holes or by a clamping-wedge connection.
- Exemplary embodiments of the invention are illustrated in the drawing and are explained in greater detail below. In the drawing
- Other objects and features of the present invention will become apparent from the following detailed description considered in conjunction with the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention, for which reference should be made to the appended claims. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.
-
FIG. 1 shows a cross section of a side view of a first exemplary embodiment of a ball-and-socket joint connection according to the present invention. -
FIG. 2 shows a cross section of a side view of a second exemplary embodiment of a ball-and-socket joint connection according to the present invention. -
FIG. 3 shows a cross section of a plan view of the ball-and-socket joint connection according toFIG. 2 according to the present invention. -
FIG. 4 shows a perspective view of the retaining part of the ball-and-socket joint connection according toFIG. 2 of the present invention. -
FIG. 5 shows a view of a third exemplary embodiment of a ball-and-socket joint connection of the present invention. -
FIG. 6 shows a side view of the ball-and-socket joint connection according toFIG. 5 of the present invention. -
FIG. 7 shows a cross section of a plan view of the ball-and-socket joint connection according toFIG. 5 of the present invention. -
FIG. 8 shows a perspective view of a first exemplary embodiment of the retaining part of the ball-and-socket joint connection according toFIG. 5 of the present invention. -
FIG. 9 shows a perspective view of a second exemplary embodiment of the retaining part of the ball-and-socket joint connection according toFIG. 5 of the present invention. -
FIG. 10 shows a cross section of a side view of a fourth exemplary embodiment of a ball-and-socket joint connection of the present invention. -
FIG. 11 shows a cross section of a side view of a fifth exemplary embodiment of a ball-and-socket joint connection of the present invention. -
FIG. 12 shows a cross section of a side view of a sixth exemplary embodiment of a ball-and-socket joint connection of the present invention. -
FIG. 13 shows a view of a retaining part of the ball-and-socket joint connection according toFIG. 12 of the present invention. -
FIG. 14 shows a cross section of the retaining part along line XIV-XIV inFIG. 13 of the present invention. -
FIG. 15 shows a rear view of the retaining part according toFIG. 13 of the present invention. -
FIG. 16 shows a perspective view of the retaining part according toFIG. 13 of the present invention. -
FIG. 17 shows a view of a spherical-cap base of the ball-and-socket joint connection according toFIG. 12 of the present invention. -
FIG. 18 shows a cross section of the spherical-cap base along line XVIII-XVIII inFIG. 17 of the present invention. -
FIG. 19 shows a perspective view of the spherical-cap base according toFIG. 17 . - The ball-and-socket joint connections illustrated in the figures have a retaining
part piston rod 3 of a piston/cylinder unit (not illustrated specifically) of a door arrester is connected to the retainingpart socket joint 2. - The ball-and-
socket joint 2 has aball socket 4 which has a spherical-cap-shapedrecess 6 which forms a ball seat and has a radially directed spherical-cap opening 5. - A ball-like component, such as a
ball 7 or aball section 8, can be introduced radially into the spherical-cap-shapedrecess 6 from the outside through the spherical-cap opening 5. Theball socket 4 extends towards the spherical-cap opening 5 beyond the central line thereof and, in the process, forms abearing shoulder 9 which grips the ball-like component from behind and by means of which the ball-like component is retained in the spherical-cap-shapedrecess 6. - The ball-like component sits with so much press fit in the spherical-cap-shaped
recess 6 that this connection is free from play, but the ball-like component can still be rotated in the spherical-cap-shapedrecess 6. - In
FIG. 1 , the retainingpart 1 is designed as a fork piece of U-shaped cross section which has, on its one end region, anelongated hole 10 which forms a fastening point and through which a screw (not illustrated) for screwing onto the body or the door of the motor vehicle can be guided. - Formed on the other end region of the fork piece, transversely to its longitudinal extent, is a
continuous recess 11 of round cross section, into which is inserted a lockingcage 12 which is formed as a wear-resistant plastic part and has theball socket 4. The cross-sectional contour of the lockingcage 12 corresponds to the cross section of therecess 11 of the fork piece. Starting from the spherical-cap-shapedrecess 6, the lockingcage 12 has, protruding away freely coaxially to therecess 11, a retainingring 13 which is of radially resilient design and the opening of which forms the spherical-cap opening 5. - Instead of the retaining
ring 13, retaining arms which protrude away freely from theball socket 4, are moveable in a radially resilient manner and form the spherical-cap opening between them could also be arranged in a manner forming a circle. - At its axial ends, the locking
cage 12 hascatches 14 which are directed radially outwards, grip behind the mouth regions of therecess 11 and thereby secure the lockingcage 12 axially in therecess 11. - In the direction of longitudinal extent of the fork piece and in the plane formed between and parallel to the
fork limbs 26 thereof, the ball socket has a radial, slot-like journal opening 18 which is directed towards its centre and through which the free end of thepiston rod 3 protrudes into theball socket 4 and is screwed there to theball 7. For this purpose, theball 7 has a radially directed threadedhole 15 into which thepiston rod 3, which is provided at its end with acorresponding thread 16, is screwed. - The plane formed between the
fork limbs 26 and the plane in which the slot-like journal opening 18 is situated form a pivoting plane of thepiston rod 3, and the opening of the longitudinal side of the fork piece forms ajournal slot 19 in which thepiston rod 3 can be pivoted. - So that the
ball 7 does not rotate when thepiston rod 3 is being screwed into the threadedhole 15, the ball has arecess 17 which opens radially outwards, is directed approximately coaxially to the spherical-cap opening 5 and into which a tool can be introduced from the outside through the spherical-cap opening 5 and is used to prevent rotation of theball 7 during the screwing-in of thepiston rod 3. - In the case of the exemplary embodiment of
FIGS. 2 to 4 , the retainingpart 1′ is formed integrally with theball socket 4 as a plastic cast part. As in the exemplary embodiment ofFIG. 1 , the retainingpart 1′ has an elongatedhole 10 on its one end region for fastening it to a body part or a door. - The spherical-
cap opening 5 extends from the spherical-cap-shapedrecess 11 transversely to the longitudinal extent of thepiston rod 3, and thepiston rod 3 is guided through ajournal slot 19′, which extends approximately at right angles to it, in the retainingpart 1′ into the spherical-cap-shapedrecess 11 and, in the same manner as inFIG. 1 , is screwed to theball 7 arranged for this purpose. - The
journal slot 19′, which is continuous radially to theball socket 4 and is formed at an angle of approximately 90° to the extent of the spherical-cap opening 5, extends through approximately 90° radially to theball socket 4. The width of thejournal slot 19 is slightly larger than the diameter of thepiston rod 3. - As the exemplary embodiment of
FIG. 9 shows, the one end region of thejournal slot 19′″″ can extend opening outwards approximately axially to the spherical-cap opening 5, so that theball 7 can be connected to thepiston rod 3 even before it is introduced into theball socket 4. - The exemplary embodiment of
FIGS. 5 to 8 differs from the exemplary embodiment ofFIGS. 2 to 4 only with regard to the fastening point. The latter is designed as a T-shapedgroove 20 which extends transversely to the pivoting plane of thepiston rod 3 and into which a clamping wedge of corresponding shape arranged on the body or the door can be introduced and forms a clamping-wedge connection. - The exemplary embodiment of
FIG. 9 also has a fastening point of this type. - In the case of the exemplary embodiments of
FIGS. 10 and 11 , theball socket 4 is arranged on a ball-socket holder 21 which is connected coaxially to the free end of thepiston rod 3 by means of a screw connection. This free end of thepiston rod 3 here is provided with athread 16 which is screwed in a corresponding threadedhole 22 of the ball-socket holder 21. - The construction of the retaining
part 1 corresponds to the fork piece of the exemplary embodiment ofFIG. 1 . - As in the exemplary embodiment of
FIG. 1 , theball socket 4 has a lockingcage 12 which is inserted into acontinuous recess 23 of the ball-socket holder 21 and is secured bycatches 14. In this case, therecess 23 extends approximately at right angles to the pivoting plane of the piston rod. - Coaxial to the spherical-
cap opening 5, apassage opening 24 is formed in theball socket 4 lying opposite the spherical-cap opening 5. Theball section 8 is mounted pivotably in theball socket 4 and hasspacer journals 25 coaxially on both sides which protrude through the spherical-cap opening 5 and thepassage opening 24 and with their end sides are in contact with the inner sides of thefork limbs 26 of the fork piece. As a result, the ball-socket holder 21 is always retained centrally between thefork limbs 26. Coaxially to thespacer journals 25, theball section 8 has anaxle 27 protruding on both sides and, protruding through correspondingholes 28 in thefork limbs 26, is fastened thereon. For this purpose, theaxle 27 has, at its one end, aradially expanding head 29 which bears against the outer side of the onefork limb 26 while the other end of theaxle 27 is radially extended to form arivet head 30 bearing against the outer side of theother fork limb 26. - In
FIG. 10 , theaxle 27 is an axle journal which protrudes through a correspondinghole 31 of theball section 8 while, inFIG. 11 , the ends of theaxle 27′ are formed integrally with theball section 8. - In the exemplary embodiment of
FIGS. 12 to 19 , the retainingpart 1″ is a plastic part and also integrally has theball socket 4. - The spherical-
cap opening 5 opens into the spherical-cap-shapedrecess 11 in a manner opposed to thejournal slot 19″. - The
piston rod 3 which protrudes through thejournal slot 19″ is provided with athread 16 at its free end and is screwed in a corresponding threadedhole 15 of theball 7. - The mouth region of the spherical-
cap opening 5 is closed by a spherical-cap base 32 which is of spherical-cap-shaped design corresponding to theball 7 on the side facing the latter. Theball 7 is in contact with this spherical-cap-shaped contour of the spherical-cap base 32. - Lying diametrically opposite each other, two
guide journals 33 protrude radially from the circular spherical-cap base 32 and, in correspondingrecesses 34 in the retainingpart 1″, form a means of securing the spherical-cap base 32 against rotation. - At the end having the mouth of the spherical-
cap opening 5, the retainingpart 1″ has radially extendingtabs 35 which are provided withrecesses 36 which are directed axially to the direction of longitudinal extent of thepiston rod 3 and form fastening points for fastening it to the body or the door by means of screws. - The
journal slot 19″ is formed in accordance with thejournal slot 19′ ofFIGS. 2 to 4 . - Thus, while there have shown and described and pointed out fundamental novel features of the invention as applied to a preferred embodiment thereof, it will be understood that various omissions and substitutions and changes in the form and details of the devices illustrated, and in their operation, may be made by those skilled in the art without departing from the spirit of the invention. For example, it is expressly intended that all combinations of those elements and/or method steps which perform substantially the same function in substantially the same way to achieve the same results are within the scope of the invention. Moreover, it should be recognized that structures and/or elements and/or method steps shown and/or described in connection with any disclosed form or embodiment of the invention may be incorporated in any other disclosed or described or suggested form or embodiment as a general matter of design choice. It is the intention, therefore, to be limited only as indicated by the scope of the claims appended hereto.
Claims (9)
1. A ball and socket joint connection comprising:
a retaining part having a fastening point and a journal slot;
a ball-like component arranged in the retaining part;
a rod part which is pivotable in a pivoting plane relative to the retaining part, the pivoting plane passing through the journal slot and the fastening point; and
a one-piece ball socket fixed to the rod part, the ball socket having a spherical recess in which the ball-like component is rotatably seated, a radially directed opening for receiving the ball-like component in the spherical recess, and a bearing shoulder between the spherical recess and the opening, the bearing shoulder retaining the ball-like component in the spherical recess.
2. The ball and socket joint connection of claim 1 further comprising a ball socket holder arranged axially on an end of the rod part, the ball socket being fixed in the ball socket holder.
3. The ball and socket joint connection of claim 2 wherein the ball socket holder is screwed onto the end of the rod part.
4. The ball and socket joint connection of claim 3 wherein the end of the rod part has an external thread, the ball socket holder having a threaded bore which receives the threaded end of the rod part.
5. The ball and socket joint connection of claim 1 further comprising a retaining element which holds the ball-like component in the retaining part.
6. The ball and socket joint of claim 5 wherein the retaining element is an axle extending transversely to the pivoting plane, the axle passing through the ball-like component and having opposite ends fastened to the retaining part.
7. The ball and socket joint connection of claim 6 wherein the axle is formed as one piece with the ball-like component.
8. The ball and socket joint connection of claim 6 wherein the axle comprises a journal which passes through the ball-like component.
9. The ball and socket joint connection of claim 6 wherein the retaining par has a pair of holes which receive the ends of the axle therethrough.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US12/148,431 US20080199248A1 (en) | 2003-05-16 | 2008-04-18 | Ball-and-socket joint connection |
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DE10322265A DE10322265A1 (en) | 2003-05-16 | 2003-05-16 | Ball joint |
US10/842,784 US7384209B2 (en) | 2003-05-16 | 2004-05-11 | Ball-and-socket joint connection |
US12/148,431 US20080199248A1 (en) | 2003-05-16 | 2008-04-18 | Ball-and-socket joint connection |
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US10/842,784 Division US7384209B2 (en) | 2003-05-16 | 2004-05-11 | Ball-and-socket joint connection |
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US12/148,431 Abandoned US20080199248A1 (en) | 2003-05-16 | 2008-04-18 | Ball-and-socket joint connection |
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EP (1) | EP1477690B1 (en) |
DE (2) | DE10322265A1 (en) |
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US20140370457A1 (en) * | 2011-08-08 | 2014-12-18 | Hankookin, Inc. | Tooth Loosening And Removal Apparatus With A Motion Transfer Member |
WO2016021098A1 (en) * | 2014-08-04 | 2016-02-11 | ソニー株式会社 | Movable device, movable seat, and method for manufacturing movable device |
EP3179117B1 (en) * | 2014-08-04 | 2020-04-22 | Sony Corporation | Movable device, movable seat, and method for manufacturing movable device |
US10925798B2 (en) | 2014-08-04 | 2021-02-23 | Sony Corporation | Movable apparatus, movable sheet, and method of manufacturing movable apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE10322265A1 (en) | 2004-12-09 |
US20050013658A1 (en) | 2005-01-20 |
EP1477690A2 (en) | 2004-11-17 |
US7384209B2 (en) | 2008-06-10 |
EP1477690B1 (en) | 2009-03-25 |
DE502004009199D1 (en) | 2009-05-07 |
EP1477690A3 (en) | 2006-01-18 |
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