KR101541513B1 - Pivot angle display device for ball joint - Google Patents

Pivot angle display device for ball joint Download PDF

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Publication number
KR101541513B1
KR101541513B1 KR1020140024239A KR20140024239A KR101541513B1 KR 101541513 B1 KR101541513 B1 KR 101541513B1 KR 1020140024239 A KR1020140024239 A KR 1020140024239A KR 20140024239 A KR20140024239 A KR 20140024239A KR 101541513 B1 KR101541513 B1 KR 101541513B1
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KR
South Korea
Prior art keywords
ball
joint
stud
bar
socket
Prior art date
Application number
KR1020140024239A
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Korean (ko)
Inventor
오준호
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오준호
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Priority to KR1020140024239A priority Critical patent/KR101541513B1/en
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Publication of KR101541513B1 publication Critical patent/KR101541513B1/en

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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
    • F16C11/0695—Mounting of ball-joints, e.g. fixing them to a connecting rod
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures

Abstract

According to the present invention, a pivot angle display device for a ball joint includes: a cam surface formed on a side of a joint ball opposed to a side wherein a stud is installed at a radius of curvature different from the same of a sphere; an inner insertion hole at a predetermined depth to be opened to function as a ball mount of a joint socket; an elevation operation bar installed in the inner insertion hole to be moved up and down; an elastic member for supporting the elevation operation bar to be elastically biased toward the cam surface; a distance detection sensor part to detect the vertical moving distance of the elevation operation bar and to output a detection signal; a computation part which receives a signal outputted from the distance detection sensor when the elevation operation bar is moved up and down by changes in the radius of curvature of the cam surface coming in contact with the top of the elevation operation bar with the turning of the stud in order to compute the information on the moving distance into a relative angle of traverse between the stud and the joint socket; and a display part to display the angle of traverse computed by the computation part. In addition to this, the pivot angle display device for a ball joint includes: a distance detection sensor part to detect the turning direction and vertical moving distance of the elevation operation bar and to output a detection signal; a computation part which receives a signal outputted from the distance detection sensor part to compute information on the turning direction and the moving distance when the top of the elevation operation bar turns in a predetermined direction or moves up and down while the one bottom of the elevation operation bar is supported in a protrusion; and a display part to display the angle of traverse computed by the computation part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a ball joint angle display device,

The present invention relates to an angle display apparatus for a ball joint, and more particularly to an angle display apparatus for a ball joint, which comprises an up-down movement bar which can be raised and lowered up and down by a turning operation of a joint ball or a stud of a ball joint, The angle of the ball joint can be easily recognized by calculating information on the up and down movement and the turning direction by the relative turning angle of the stud of the ball joint and the joint socket and displaying the calculated information on the outside, .

Generally, ball joints are used in various fields such as various household goods such as a cradle in a daily life, and automobile parts. In the case of a ball joint used as a part of an automobile, the ball joint is rotatable and pivotable by a joint ball of a ball stud And a ball stud having a stud and a joint ball extending through the stud opening in one direction of the joint socket, and a ball-and-socket joint for a motor vehicle having a sensor.

A ball-socket joint of this kind is known from DE 101 61 671 A1, in which such a ball-socket joint is arranged such that the magnetic field sensor is arranged in the closing element and the element is arranged to close the mounting opening in the housing And the magnetic field sensor is disposed in the housing and is completely covered by the protection device, thereby disclosing a technique for allowing a driver of the vehicle to grasp information on the amount of moisture to be used for automobile service.

In addition, the technology relating to ball joints known from German patent application DE 101 10738 A1 includes a bar magnet and a magnetic field sensor fixed to the joint housing, and it is possible to obtain the relative angular position between the ball journal (shaft) A ball joint having a detecting portion is provided.

However, all of the above-mentioned technologies are complicated, and there are disadvantages such as a development cost, a production cost, and a maintenance cost as well as a measurement method for the production.

On the other hand, in the case of a ball-socket joint used in daily necessities, a scale or the like is displayed on the surface of the joint ball so as to recognize the rotation angle of the ball stud. And it is difficult to identify the turning angle of the ball stud and the angle of rotation because it is difficult to identify and the mark of the scale is not easily visible to the naked eye.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for controlling a turning angle, And to provide a ball joint angle display device capable of easily calculating and displaying the turning and twisting angles of the center axis of the stud through a configuration that can be relatively easily manufactured and installed.

According to an aspect of the present invention, there is provided an angle display apparatus for a ball joint, the ball joint comprising: a ball joint including a joint ball having a stud on one side thereof and a joint socket having a spherical ball mounting portion formed therein to receive the joint ball; A ball joint angle display device for displaying a turning angle of the stud, comprising: a cam surface formed on the opposite surface of the joint ball on which the stud is provided, the radius of curvature being different from a radius of curvature of a sphere; An inner insertion hole formed at a predetermined depth to be opened to the ball mounting portion of the joint socket; A lifting / lowering bar provided so as to be able to move up and down in the inner insertion hole; An elastic member for elastically biasing the lifting / lowering bar in a direction toward the cam surface so that the upper end of the lifting / lowering bar is kept in a rolling contact with the cam surface of the joint ball; A distance detection sensor unit for detecting a vertical movement distance of the up / down movement bar and outputting a sensed signal; When the upward / downward movement bar is moved up and down due to a change in curvature of the cam surface in contact with the upper end of the up / down movement bar in accordance with the turning operation of the stud, A calculating unit for calculating information about the joint and the socket by a relative turning angle of the stud and the joint socket; A display unit for displaying the turning angle calculated by the calculating unit; .

A ball joint angle display device according to the present invention is a ball joint comprising a joint ball having a stud on one side and a joint socket on which a spherical ball mounting part is formed to receive the joint ball therein, The ball joint angle display apparatus according to claim 1, further comprising: an inner insertion hole formed at a predetermined depth to be opened to the ball mounting portion of the joint socket; A protrusion formed along the inner circumferential surface so as to narrow its inner diameter at a certain depth of the inner insertion hole; A lifting bar provided on the inner insertion hole so that an upper end thereof is connected to a lower end of the joint ball and is movable in four directions along the joint ball by an operation of rotating the stud; A distance detection sensor unit for sensing a turning direction and a vertical movement distance of the up / down movement bar and outputting a sensed signal; When the upper end portion of the ascending / descending operation bar is pivoted or moved up and down in a state in which one end of the lower side of the ascending and descending operation bar is supported by the protrusion in accordance with the pivoting operation of the stud, And calculating information on the turning direction and the moving distance as a relative turning angle between the stud and the socket socket; A display unit for displaying the turning angle calculated by the calculating unit; .

According to the above-described constitution, the angular display device of the ball joint according to the present invention is constituted of the upward / downward movement bar which can be raised and lowered up and down by the turning operation of the joint ball or the stud of the ball joint, The information of the up-down movement and the turning direction is calculated by the relative turning angle of the stud of the ball joint and the joint socket, and the calculated information is displayed on the outside, so that the angle of the ball joint can be easily recognized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cross-sectional state view showing a configuration of a ball joint angle display device according to an embodiment of the present invention; FIG.
FIG. 2 and FIG. 3 are partial cross-sectional state views showing an embodiment of an angle display apparatus of a ball joint according to an embodiment of the present invention. FIG.
4 is a partial cross-sectional state view showing an embodiment of an angle display apparatus of a ball joint according to another embodiment of the present invention.
5 is a partial cross-sectional state view showing an embodiment of an angle display apparatus for a ball joint according to another embodiment of the present invention.

Hereinafter, a ball joint angle display device (hereinafter referred to as "angle display device") according to the present invention will be described in detail with reference to embodiments shown in the drawings.

FIG. 1 is a partial cross-sectional view illustrating a configuration of a ball joint angle display device according to an embodiment of the present invention, and FIGS. 2 and 3 are views showing an operation state of a ball joint angle display device according to an embodiment of the present invention Fig.

The angle display apparatus of the present invention comprises a ball stud having a joint ball 1 provided with a stud 1a on one side thereof and a joint socket 2 having a spherical ball mounting portion 2a formed therein to receive the joint ball 1 The maximum turning angle of the stud 1a in the ball mounting portion 2a is shown by an angle? In Fig. 1. The maximum turning angle of the stud 1a in the ball mounting portion 2a is shown in Fig.

Referring to the drawings, an angle display device 1 according to an embodiment of the present invention includes a cam surface 110, an internal insertion hole 120, an ascending / descending operation bar 130, an elastic member 140, An operation unit 160, and a display unit 170. The display unit 170 includes a display unit 170,

1 to 3, the angle display apparatus of the present invention is characterized in that the cam surface 110 is formed on the other side of the stud 1a of the ball stud, that is, the lower end surface of the joint ball 1, And an inner insertion hole 120 having a predetermined depth is formed in the ball mounting portion 2a.

It is preferable that the cam surface 110 is formed on the opposite side of the surface of the joint ball 1 on which the stud 1a is provided. The cam surface 110 is formed by a curvature radius of a sphere forming the surface of the joint ball 1 And has a different radius of curvature.

It is preferable that the cam surface 110 is formed with reference to a reference axis perpendicular to the center of the joint ball 1, that is, a central axis M of the ball stud, The ball stud 110 may be formed so as to be gradually gentle or steep in a direction away from the center axis M of the ball stud with reference to the center axis M of the ball stud as shown in FIG.

Also, it is possible that the cam surface 110 forms a plurality of sectors or a plurality of regions at predetermined positions in all directions with respect to the center axis M of the ball stud, Axis direction having the center axis M of the ball stud and X, Y, Z, respectively.

Meanwhile, the joint socket 2 may have the internal insertion hole 120 formed therein. The internal insertion hole 120 is formed to have a predetermined depth and a diameter at the center of the ball mounting portion 2a so as to form an opening in the ball mounting portion 2a. The inner insertion hole 120 defines a space in which the lifting and lowering bar 130 can be received so that the lifting and lowering bar 13 is installed in the inner hole 120 so as to be raised and lowered .

1, the inner insertion hole 120 is formed in the center of the joint ball 1 in a state in which the stud 1a is vertically positioned at the same angle as the center axis M of the ball stud, That is, the center of the cam surface 110, in the ball mounting portion 2a.

As described above, the up-and-down movement bar 130 is installed on the inner insertion hole 120 so that the up-and-down movement bar 130 can move up and down. Is elastically biased in a direction toward the cam surface (110) through the elastic member (140) provided at the lower end so as to be kept in a rolling contact state with the cam surface (110).

The upper end of the lifting and lowering bar 130 is kept in contact with the cam surface 110 of the joint ball 1. The joint ball 1 is rotated by the rotation of the stud 1a The upward / downward movement bar 130 is moved up and down by a change in curvature of the cam surface 110, which is formed by a curvature radius different from the radius of curvature of the sphere.

That is, when the radius of curvature formed on the cam surface 110 is larger than the radius of curvature of the sphere, the curved surface may be formed such that the central portion of the lower end surface of the joint ball 1 protrudes downward. The upward and downward movement bar 130 is moved in a direction in which the upper surface of the cam surface 110 which is in contact with the cam surface 110 is gradually inclined toward the radius of curvature of the spherical surface 110 according to the rotation of the stud 1a, As shown in FIG.

In contrast, when the radius of curvature formed on the cam surface 110 is smaller than the radius of curvature of the sphere, the center of the lower end surface of the joint ball 1 may be curved upwardly, (110) is formed, the stud (1a) is pivoted in a state in which the ascending / descending operation bar (130) is already elevated by a certain distance compared with the case of the former, and the cam surface (110) The upper end portion which is in contact with the cam surface 110 gradually moves downward along the cam surface 110 which is inclined close to the radius of curvature of the sphere. That is, as shown in FIGS. 1 to 3, the lifting and lowering bar 130 can move up and down.

The ball joint angle display apparatus of the present invention calculates the turning angle of the stud 1a on the basis of the information on the moving distance of the up / down movement bar 130 through the above-described configurations, The distance detection sensor unit 150, the operation unit 160, and the display unit 170 are configured to perform such functions.

The distance detection sensor unit 150 is configured to detect a vertical movement distance of the up / down movement bar 130 and to output a detected signal to the outside. Down movement bar 130 in the longitudinal direction within the joint socket 2 so as to sense a vertical position change with respect to a reference point P that can be designated at one end in the longitudinal direction of the up / .

The distance sensing sensor unit 150 is preferably made of an optical sensor and is installed so as to face the inner circumferential surface of the inner insertion hole 120 to measure a moving distance with respect to the reference point P. [

The arithmetic unit 160 receives the signal output from the distance sensor unit 150 and calculates a turning angle of the stud 1a.

The operation unit 160 moves the elevating and lowering bar 130 in the direction of the arrow X by the curvature change of the cam surface 110 at which the upper end of the elevating bar 130 contacts, In the case of the descending movement, the turning angle of the stud 1a can be detected by receiving the signal outputted from the distance detecting sensor unit 150. [

That is, the calculating unit 160 calculates information on the moving distances z1 and z2 of the lifting bar 130 by using the relative turning angles? 1 and? 2 between the stud 1a and the socket socket 2 Respectively.

At this time, the display unit 170 externally displays the turning angle calculated by the calculating unit 160, that is, the relative turning angles? 1 and? 2 between the stud 1a and the joint socket 2 The display unit 170 is connected to the operation unit 160 through a cable or the like via a cable or the like and is connected to the operation unit 160 through a wireless communication or the like so that the information about the turning angles α1 and α2, The information including the movement distances z1 and z2 of the ball joints is displayed to the outside through the display unit or the like so that the user can easily recognize the angle of the ball joint.

4 is a partial cross-sectional view showing an embodiment of an angle display apparatus for a ball joint according to another embodiment of the present invention.

Referring to the drawings, an angle display device 1 according to another embodiment of the present invention includes an inner insertion hole 210, a protrusion 220, an ascending / descending operation bar 230, a connecting portion 240, A display unit 250, an operation unit 260, and a display unit 270.

First, in another embodiment of the present invention, it is preferable that the joint ball 1 of the ball stud is formed to have a spherical shape. The distance sensor unit 250, the operation unit 260, and the display unit 270 are configured in the same manner as the above embodiment.

The inner insertion hole 210 may be formed in the central portion of the ball mounting portion 2a such that an opening is formed in the ball mounting portion 2a of the joint socket 20 as in the embodiment of the present invention. At this time, the inner insertion hole 210 is formed with the protrusion 220 protruding along the inner circumferential surface so that its inner diameter narrows at a certain depth.

The protrusion 220 is configured to support a lower end of the up-and-down movement bar 230 installed perpendicularly to the inner insertion hole 210, Thereby limiting movement.

4, the upward / downward movement bar 230 has an upper end connected to the joint ball 1 through a connecting portion 240, and the upward / downward movement bar 230 is connected to the ball stud through the connection portion 240. Referring to FIG. 4, And is movable in four directions along the joint ball 1 by the rotation of the stud 1a.

4, the connection unit 240 includes a ball receiving hole 240a formed at the lower end of the joint ball 1 so as to form another ball joint structure at a lower end of the spherical joint ball 1, And a spherical protrusion 240b formed at an upper end of the lifting / lowering bar 230 so as to be fitted in the ballhole 240a and pivotable.

The upward and downward movement bar 230 is pivoted in a state in which one end of the lower side of the up / down movement bar 230 is supported on the protrusion 220 in the lateral direction in accordance with the rotation of the stud 1a, The upper end of the lowering operation bar 230 freely swings or moves up and down along the joint ball 1 in a certain direction.

Therefore, when the up / down movement bar 230 moves as described above, the operation unit 260 receives the signal output from the distance detection sensor unit 250 as in the embodiment of the present invention, The information z3 of the turning direction and the moving distance of the operation bar 230 can be calculated by the relative turning angle of the stud 1a and the joint socket 2, It becomes possible to display it.

FIG. 5 is a partial cross-sectional view showing an embodiment of an angle display apparatus for a ball joint according to another embodiment of the present invention.

Referring to FIG. 5, in another embodiment of the present invention, the up-and-down movement bar 230 is connected to the ball stud through the connecting member 240 '. In the same manner as the other embodiments, The lowering operation bar 230 is configured such that an upper end portion thereof is connected to a lower end portion of the joint ball 1 and is movable in four directions along the joint ball 1 by an operation of rotating the stud 1a.

That is, all the components except for the connecting member 240 'are configured in the same manner as in the other embodiments, and the connecting member 240' may be made of a flexible material such as a rubber bellows will be.

Accordingly, in the angular display apparatus of the ball joint according to another embodiment of the present invention, as in the other embodiments, the up-and-down movement bar 230 always moves up and down according to the turning operation of the stud 1a. Information on the turning direction and the moving distance of the bar 230 can be calculated by the relative turning angle of the stud 1a and the joint socket 2 and can be displayed externally through the display unit 270 do.

The ball joint angle display device described above and shown in the drawings is only one embodiment for carrying out the present invention and should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is defined only by the matters set forth in the following claims, and the embodiments improved and changed without departing from the gist of the present invention are obvious to those having ordinary skill in the art to which the present invention belongs It will be understood that the invention is not limited thereto.

1 joint ball 1a stud
2 joint socket 110 cam face
120, 210 inner insertion hole 220 protrusion
130,230 ascending / descending motion bar 140 elastic member
240 connection part 150, 250 distance detection sensor part
160,260 computing unit 170,270 display unit
M center axis of ball stud α angle

Claims (2)

A ball joint angle display apparatus for displaying a turning angle of a stud in a ball joint comprising a joint ball having a stud on one side and a joint socket on which a spherical ball mounting part is formed to receive the joint ball,
A cam surface formed on the opposite surface of the joint ball on which the stud is provided, the radius of curvature being different from a radius of curvature of the sphere;
An inner insertion hole formed at a predetermined depth to be opened to the ball mounting portion of the joint socket;
A lifting / lowering bar provided in the inner insertion hole so as to be elevated and lowered;
An elastic member for elastically biasing the lifting and lowering bar in a direction in which the lifting bar is lifted so that the upper end of the lifting bar is in a rolling contact with the cam surface of the joint ball;
A distance detection sensor unit for detecting a vertical movement distance of the up / down movement bar and outputting a sensed signal;
When the upward / downward movement bar is moved up and down due to a change in curvature of the cam surface in contact with the upper end of the up / down movement bar in accordance with the turning operation of the stud, A calculating unit for calculating information about the joint and the socket by a relative turning angle of the stud and the joint socket;
A display unit for displaying the turning angle calculated by the calculating unit; Wherein the ball joint angle display device comprises: A ball joint angle display apparatus for displaying a turning angle of a stud in a ball joint comprising a joint ball having a stud on one side and a joint socket on which a spherical ball mounting part is formed to receive the joint ball,
An inner insertion hole formed at a predetermined depth to be opened to the ball mounting portion of the joint socket;
A protrusion formed along the inner circumferential surface so as to narrow its inner diameter at a certain depth of the inner insertion hole;
A lifting bar provided on the inner insertion hole so that an upper end thereof is connected to a lower end of the joint ball and is movable in four directions along the joint ball by an operation of rotating the stud;
A distance detection sensor unit for sensing a turning direction and a vertical movement distance of the up / down movement bar and outputting a sensed signal;
When the upper end portion of the ascending / descending operation bar is pivoted or moved up and down in a state in which one end of the lower side of the ascending and descending operation bar is supported by the protrusion in accordance with the pivoting operation of the stud, And calculating information on the turning direction and the moving distance as a relative turning angle between the stud and the socket socket;
A display unit for displaying the turning angle calculated by the calculating unit; Wherein the ball joint angle display device comprises:
KR1020140024239A 2014-02-28 2014-02-28 Pivot angle display device for ball joint KR101541513B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140024239A KR101541513B1 (en) 2014-02-28 2014-02-28 Pivot angle display device for ball joint

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Application Number Priority Date Filing Date Title
KR1020140024239A KR101541513B1 (en) 2014-02-28 2014-02-28 Pivot angle display device for ball joint

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101766762B1 (en) * 2016-02-12 2017-08-10 에이치디티 주식회사 Tilt measurement device using a laser sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001159502A (en) 1999-12-01 2001-06-12 Nsk Ltd Measuring method of pocket aperture of retainer for rolling bearing
JP2003121104A (en) 2001-10-10 2003-04-23 Toyota Motor Corp Three-dimensional cam profile measuring method and apparatus thereof
JP2004347545A (en) 2003-05-26 2004-12-09 Nsk Ltd Method and device for measuring pocket clearance of cage for rolling bearing

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001159502A (en) 1999-12-01 2001-06-12 Nsk Ltd Measuring method of pocket aperture of retainer for rolling bearing
JP2003121104A (en) 2001-10-10 2003-04-23 Toyota Motor Corp Three-dimensional cam profile measuring method and apparatus thereof
JP2004347545A (en) 2003-05-26 2004-12-09 Nsk Ltd Method and device for measuring pocket clearance of cage for rolling bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101766762B1 (en) * 2016-02-12 2017-08-10 에이치디티 주식회사 Tilt measurement device using a laser sensor

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