KR19990049978A - Swivel hinge structure - Google Patents

Abstract

Disclosed is a structure for supporting a rotating plate such as a reflector or optical path refraction plate to be rotatable about an X axis and a Y axis in a camera shake correction device or a high quality image conversion unit of a camcorder, and a position corresponding to a rotation axis of an inner member. Protruded outwardly from one side, the protruding one side of which is installed in a lower side of a hinge pin seated at a seating hole formed at a position corresponding to that of the outer member, and the seating hole of the outer member on which the hinge pin is seated. By means of support means composed of a permanent magnet which prevents the hinge pin from moving in a direction perpendicular to the axial direction, and a support member which maintains a gap between the inner member and the outer member. Is rotatably supported relative to the inner frame and the inner frame is rotated relative to the outer frame. And it is rotatably supported in a direction perpendicular to, and moved by the camera-shake during shooting of the camera in a direction perpendicular to the direction in the axial direction or axis or hinge axis does not cause a jittery.

Description

Swivel hinge structure

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for rotatably supporting a rotating plate such as a reflector or an optical path refraction plate in the camcorder's image stabilization device or a high-definition image conversion unit, in particular in the axial direction or the axis thereof. A rotating plate hinge structure for preventing shaking in a direction perpendicular to the axial direction.

In general, a camcorder or video camera often photographs a subject while the user supports it with his or her hand. Accordingly, since the image is disturbed due to the shaking of the hand, an anti-shake device has been proposed and used to prevent this. The image stabilization device is integrally assembled with a reflector reflecting an image of a subject to a lens barrel provided with a zoom lens, and rotates the reflector with respect to the roll axis and the pitch axis in a direction of detecting and canceling the movement of the camcorder body caused by the camera shake. The camera shake is corrected.

As shown in FIG. 1, the image stabilization apparatus includes a reflector 1 for reflecting an image of a subject through a lens barrel, an inner frame 2 provided outside the reflector 1, It consists of the outer frame 3 provided in the outer side, and the rolling actuator 4a and the pitching actuator 4b for rotating a reflecting mirror about an X-axis and a Y-axis.

And, as shown in more detail in Figure 2, the fitting groove formed in the corresponding portion of the hinge pin (5a) inner frame (2) protruding outward from the portion corresponding to the rotation axis of the reflecting mirrors at both ends of the reflector (1) By being fitted to 5c, the reflector 1 is hinged to be rotatable about the X axis about the hinge pins 5a and 5b, and the inner frame 2 is also outside from the portion corresponding to its Y axis. The hinge pins 5b protruding from each other are rotatably supported about the Y-axis about the hinge pins 5b by being fitted in the fitting grooves 5d formed in the corresponding portions of the outer frame 3.

In this way, the hand shake generated during the shooting is detected by the hand shake detection unit (not shown), and the reflecting mirror 1 is operated by the rolling actuator 4a and the pitching actuator 4b according to the hinge shaft 5a and The angle of the reflector 1 is changed by being rotated about the X-axis and the Y-axis about the hinge axis 5b of the inner frame 2, so that the reflector 1 causes the image of the subject to be directed against the lens barrel. By reflecting at the changed angle, hand shake is corrected.

On the other hand, the high-definition image conversion unit used in camcorders recently is to obtain a high-definition image at a low price by using an image pickup device having a low resolution, and the incident light incident on the image pickup surface by using an optical path refraction plate to the optical X-axis and Y Each device moves 0.5 pitches about the axis and synthesizes them by using an electric circuit to obtain an image having four times the resolution of the original resolution.

The high quality image conversion unit has the same configuration as the image stabilizer shown in FIGS. 1 and 2. That is, in FIG. 1 and FIG. 2, the optical path refraction plate is positioned at the position of the reflector 1.

In this manner, the incident light passing through the optical path refracting plate is rotated by the rolling actuator and the pitching actuator at a predetermined angle with respect to the X axis and the Y axis in a predetermined time interval and in a predetermined order. It is incident on the imaging plane with the pitches being shifted by 0.5 pitches with respect to the Y axis.

However, the conventional image stabilization apparatus or the high-definition image conversion unit as described above has the following problems.

That is, the hinge structure for rotatably supporting the reflector or the optical path refracting plate 1 (hereinafter referred to as the rotating plate) about the X axis and the Y axis includes a hinge pin 5a protruding from the rotating plate 1 and the inner frame 2. , 5b is a simple structure that is supported by the fitting groove 2 formed in the inner frame 2 and the outer frame 3, the rotating plate 1 and the inner frame 2 can be rotated smoothly ) And an inner frame 2 and a predetermined gap is maintained between the inner frame 2 and the outer frame 3.

However, conventionally, the hinge pin of the rotating plate is moved by the movement of the hinge pin 1 in its axial direction and the direction perpendicular to the axial direction (that is, the axial movement of the hinge pin of the inner frame. Since there is no structure to prevent the phenomenon of moving in the direction of movement of the hinge axis of the frame or vice versa), the rotating plate, i.e. the reflector 1 or the optical path refraction plate, is shaken when shooting due to a cause such as hand shake. There was a problem with this disorder.

The present invention has been made to solve the above problems, the hinge pin for supporting the rotating plate, such as the reflector of the image stabilization device or the optical path refraction plate of the high-definition image conversion unit in the direction perpendicular to the axial direction or the axial direction It is an object of the present invention to provide a rotating plate hinge structure that can obtain a clearer picture quality by preventing moving or shaking.

1 is a perspective view showing a conventional rotating plate hinge structure.

FIG. 2 is an enlarged detail view of the hinge unit of FIG. 1. FIG.

Figure 3 is a plan view showing a rotating plate hinge structure according to the present invention.

Figure 4 is a front view showing a rotating plate hinge structure according to the present invention.

Explanation of symbols on the main parts of the drawings

11; Rotating plate 12; Inner frame

13; Outer frame 14a; Rolling actuator

14b; Pitching actuator 20; Support

21; Hinge pins 22; Permanent magnet

23; Support member 24; Seater

24a; Opening 24b; Breakaway Jaw

The above object is a hinge structure of a rotating plate for rotatably supporting a rotating plate about two rotating shafts orthogonal to each other using an inner frame and an outer frame, protruding outward from a position corresponding to the rotating shaft of the inner member, The hinge pin is installed in the lower side of the seating hole of the protruding one side is seated in the seating hole formed at a position corresponding to that of the outer member, and the hinge pin is seated in the axial direction by the magnetic force The rotating plate is rotatably supported with respect to the inner frame by supporting means composed of a permanent magnet which prevents movement in a direction perpendicular to the support member, and a supporting member which maintains a gap between the inner member and the outer member. The inner frame is rotatable in a direction perpendicular to the rotating plate relative to the outer frame. It characterized in that the support is accomplished by the rotating plate hinge structure in accordance with the present invention.

Here, the hinge pin may be fixed to the insertion groove formed in the inner member by interference fit, or may be integrally formed with respect to the inner member.

And, the seating hole of the outer member is made of a substantially 'V' type or circular, the upper side is preferably opened. More preferably, the seating hole of the outer member has a release stop for preventing the hinge pin seated therein from being separated through the upper opening.

In addition, the support member is composed of a pair of support plates installed on both sides of the hinge pin so that one end thereof is in contact with the outer member, the other end thereof is in contact with the inner member, with respect to the outer member or the inner member It is preferably formed integrally. More preferably the support member has a predetermined elasticity.

According to the present invention configured as described above, one side end of the hinge pin constituting the rotating shaft of the rotating plate and the inner frame is seated in the seating hole, and supported by a permanent magnet installed at the bottom thereof, and between and inside the gap between the rotating plate and the inner frame. Since the support member is provided between the gaps between the frame and the outer frame to maintain the gaps, the phenomenon in which the hinge axis is moved or shaken in the direction perpendicular to the axial direction or the axial direction is not caused by the shaking of the camcorder.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

A rotating plate hinge structure according to the invention is shown in FIGS. 3a and 3b. Figure 3a is a plan view showing a rotating plate hinge structure according to the present invention, Figure 3b is a front view.

As shown, the inner frame 12 is located outside the rotating plate 11, such as the reflector of the image stabilizer or the optical path refraction plate of the high-quality image conversion unit, and the outer frame (outside of the inner frame 12). 13) is located.

And, the rotary plate 11 and the inner frame 12 and the inner frame 12 and the outer frame 13 are hinged to each other by a pair of support 20, respectively, the configuration of the support 20 The supporting unit 20 provided on the rotation shaft of the inner frame 12 will be described as follows. For reference, for convenience of description, the horizontal axis, that is, the axis of rotation of the rotating plate 11 is viewed as the X axis, and the direction orthogonal thereto, that is, the axis of rotation of the inner frame Y as the Y axis.

As shown in the drawing, the support part 20 includes a hinge pin 21 which forms the rotation axis of the inner frame 12 and a permanent magnet which prevents the hinge pin 21 from moving in a direction perpendicular to the axial direction. 22, and a support member 23 for maintaining a gap between the inner frame 12 and the outer frame 13.

The hinge pin 21 is fixed with respect to the inner frame 12 by being inserted into an insertion groove formed at a position corresponding to the rotation axis of the inner frame 12, that is, the Y axis so that one side thereof protrudes outward. . Alternatively, the hinge pin 21 may be integrally formed with respect to the inner frame 12 at a position corresponding to the rotational axis of the inner frame 12, that is, the Y axis so that one side thereof protrudes outward.

In addition, a seating hole 24 in which the protruding one side of the hinge pin 21 is inserted and seated is formed in the outer frame 13 at the position corresponding to the hinge pin 21. The seating hole 24 is opened so that the upper side thereof communicates with the outside, and a protruding one side of the hinge pin 21 is inserted through the opening 24a, and the hinge pin 21 inserted in this way is approximately 'V'. It is seated on the lower surface of the seating hole 24 made of a shape or circle. An upper portion of the seating hole 24 is provided with a release prevention jaw 24b to prevent the hinge pin 21 inserted into the seating hole 24 from being separated from the seating hole 24 through the opening 24a. Is formed. Therefore, when inserting the hinge pin 21 with respect to the seating hole 24, it must be pushed in by applying a predetermined force to open the separation prevention jaw (24b).

In addition, a permanent magnet 22 is provided inside the outer frame 13 below the seat hole 24. The permanent magnet 22 supports the hinge pin 21 seated in the upper mounting hole 24 so as not to move by its magnetic force.

In addition, the support member 23 is composed of a pair of support plates which are located on both sides of the hinge pin 21, each of the support plates from one side of the outer member 13, the other end thereof to the inner member 12 It extends inclined so as to contact and has a predetermined elasticity. In this way, the both ends of the inner frame 12 and the outer frame 13 in contact with each other, the support member 23 maintains the gap between the inner frame 12 and the outer frame 13.

One end of the support member 23 may be fixed to the outer frame 13 by fixing means, and is preferably integrally formed with respect to the outer frame 13. In addition, the support member 23 may be fixed or integrally formed by the fixing means with respect to the inner frame 12 rather than the outer frame 13.

Support portions 20 having such a configuration are respectively provided on both sides of the rotating shaft of the rotating plate 11, that is, the rotating plate 11 and the inner frame 12 on the X axis, and the inner frame 12 and the outer frame on the Y axis, respectively. By being provided on both sides of 13, the rotating plate 11 is rotatably supported with respect to the inner frame 12, and the inner frame 11 is also rotatably supported with respect to the outer frame 13. As shown in FIG.

Thus, when the rotating plate 11 and the inner frame 12 are rotated about the X-axis and the Y-axis, respectively, by the rolling actuator 14a and the pitching actuator 14b, the hinge pin 21 of the support 20 One side of the rotating plate 11 and the inner frame 12 is rotated together with the hinge pin 21 by being rotated in a seated state 24. At this time, the hinge pin 21 is prevented from moving in a direction perpendicular to the axial direction by the magnetic force of the permanent magnet 22 installed below the seating hole 24 on which the hinge pin 21 is mounted, but only a rolling actuator. It can only be rotated by the action of 14a or the pitching actuator 14a.

In addition, the support member 23 installed between the rotating plate 11 and the inner frame 12 and between the inner frame 12 and the outer frame 13 includes a rotating plate 11 including a hinge pin 21 and The inner frame 12 is prevented from moving in the axial direction of the hinge pin 21.

In the present invention as described above, one side end of the hinge pin constituting the rotating shaft of the rotating plate and the inner frame is seated in the seating hole, supported by a permanent magnet installed on the lower portion, and between and inside the gap between the rotating plate and the inner frame. Since the support member is provided between the gaps between the frame and the outer frame to maintain the gaps, the phenomenon in which the hinge axis is moved or shaken in the direction perpendicular to the axial direction or the axial direction is not caused by the shaking of the camcorder. Therefore, there is an advantage that a clearer image can be obtained.

Although specific embodiments of the present invention have been illustrated and described above, the present invention is not limited to the above-described embodiments, and the present invention belongs to the present invention without departing from the gist of the present invention as claimed in the claims. Anyone of ordinary skill in the art will be able to implement various modifications.

Claims (8)

A hinge structure of a rotating plate for rotatably supporting a rotating plate about two rotating axes perpendicular to each other using an inner frame and an outer frame, A hinge pin which protrudes outward from a position corresponding to the rotational axis of the inner member, the protruding one side of which is seated in a seating hole formed at a position corresponding to the outer member, and the seat hole of the outer member on which the hinge pin is seated; A support member, which is provided inside the lower side of the support member and comprises a permanent magnet for preventing the hinge pin from moving in a direction perpendicular to the axial direction by the magnetic force, and a support member for maintaining a gap between the inner member and the outer member. And the rotatable plate is rotatably supported with respect to the inner frame, and the inner frame is rotatably supported in a direction perpendicular to the rotatable plate with respect to the outer frame. The hinge plate hinge structure according to claim 1, wherein the hinge pin is inserted into an insertion groove formed in the inner member. The hinge plate hinge structure according to claim 1, wherein the hinge pin is integrally formed with respect to the inner member. 2. The rotating plate hinge structure of claim 1, wherein the seating hole of the outer member is formed in a substantially 'V' shape or a circular shape, and an upper side thereof is opened. 5. The rotating plate hinge structure of claim 4, wherein the seating hole of the outer member has a release preventing jaw to prevent the hinge pin seated therein from being separated through the upper opening. 2. The rotating plate hinge structure of claim 1, wherein the support member comprises a pair of support plates installed at both sides of the hinge pin such that one end thereof is in contact with the outer member and the other end thereof is in contact with the inner member. . 7. The rotating plate hinge structure of claim 6, wherein the support member is integrally formed with respect to the outer member or the inner member. 7. The rotating plate hinge structure of claim 6, wherein the support member has a predetermined elasticity.