KR100872202B1 - Swing structure and multimedia device using the same - Google Patents

Abstract

An axis rotational structure and a multimedia apparatus using the same are provided to realize a rotational structure for enabling the second member to be easily axially-rotated on the first member by the external force. An axis rotational structure comprises the first member(10) and the second member(20) which axially rotates on the first member by being equipped on the first member. The first member includes an elastic means(12), and the second member includes a guide means for guiding the elastic means. The elastic means comprises both ends(12a) which are respectively fixed to each edge on surfaces of the first member, a protrusion(12b) of the center, and a curvature portion(12c) between the both ends and the protrusion.

Description

Axial rotation structure and multimedia device using this structure {SWING STRUCTURE AND MULTIMEDIA DEVICE USING THE SAME}

1 is an exploded perspective view of an example of an axial rotation structure according to the present invention;

FIG. 2 is a view showing a positional relationship of each member according to each step in which the second member illustrated in FIG. 1 is axially rotated on the first member;

3 is a schematic diagram of an exemplary multimedia apparatus employing an axial rotation structure according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: first member (lower member), 20: second member (upper member),

11, 21: hole (rotation axis), 12 ': elastic means (spring),

13: guide pin, 15: fixing protrusion,

22 ': guide means, 23: guide.

The present invention relates to an axial rotation structure in which a second member (moving member) is axially rotated on a first member (fixed member), and in particular, after spontaneously moving by deformation of an elastic means during axial rotation, it stops at a plurality of places. Axial rotation structure. The invention also relates to elastic means used in such an axial rotational structure. The present invention also relates to a multimedia device such as a mobile phone employing such an axial rotation structure.

In general, according to the development of the electronics industry, in particular, the electronics industry associated with multimedia, research on the coupling relationship between members is in progress.

For example, structures for moving other members on one member when joining two different members have been studied. This is to improve the user's ease of use in a multimedia device that uses a mobile phone, a sound and video playback device, a camera, a game machine, etc., which are currently in vogue individually or in combination.

The present invention has been made as part of this study, the second member (moving member) on the first member (fixed member) is moved from the initial position by the force from the outside, spontaneous rotation by the deformation of the elastic means during the movement An object of this invention is to provide an axial rotation structure which is made to stop at a predetermined position during axial rotation.

The present invention also provides an axial rotation structure formed by injection molding the elastic means employed in the axial rotation structure of the present invention using POM (Engineering Polymer), which is a kind of plastic that is excellent in lubricity and wear resistance and can reduce friction and noise. .

In addition, an object of the present invention is to provide a multimedia device such as a mobile phone employing the above-described axial rotation structure.

In order to achieve the above object, the present invention includes a first member and a second member provided on the first member and axially rotating with respect to the first member,

The first member is provided with an elastic means, the second member is provided with a guide means for guiding the elastic means,

The second member receives a force from the outside, moves axially from the first initial position, and after the elastic means of the second member is deformed by the guide means at the second position during movement, spontaneously by an elastic force. Move, the shaft rotation of the second member is stopped as it is stored in the receiving portion formed by the guide means,

The elastic means has a ring-shaped both ends fixed to the fixing projections formed at each corner of the surface of the first member, a central projection and a curved portion between both ends and the central projection,

The central protrusion has the widest width, and the width H decreases as it extends through the central protrusion to both annular ends,

On the curved portion, there is provided an axial rotation structure further comprising a branch protruding toward a corresponding projection to which both ends are fixed.

In addition, the present invention is characterized in that the guide of the predetermined curvature is formed on the surface of the first member or the second member, the guide pin for moving along the guide on the surface opposite the second member or the first member is provided. Provide an axial rotation structure.

In addition, the present invention provides an axial rotation structure, characterized in that the elastic means is an injection spring of injection-molded plastic material.

On the other hand, in the present specification, the term "voluntarily" means that the potential of the spring increases as the guide means presses the central protrusion of the spring, and the spring moves on the guide means in the decreasing direction of the potential.

(Example)

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is an exploded perspective view of an example of an axial rotation structure according to the present invention, and as shown in FIG. 1, a hole 11 for axial rotation is formed in the center thereof, and the elastic means formed around the hole 11 is formed ( 12 ') and a first part member 10 having a guide pin 13, which is a protrusion projecting upwardly, a hole 21 facing the hole 11, and a hole around the hole 21. The second member 20 is provided with a guide means 22 'for guiding the elastic means 12' installed along with a guide 23 inserted into the guide pin 13 and moving along a path. .

Here, the first member and the second member may be integrally formed, or may be formed by assembling each part constituting each member.

On the other hand, since the first member 10 and the second member 20 abut the holes 11 and 21 and are fastened by the connecting pin 40, the first member 10 and the second member 20 can be rotated axially. That is, when the second member 20 is axially rotated on the first member 10, the elastic means 12 ′ moves along the guide means 22 ′, and the guide pin 13 moves the guide ( 23).

Here, the elastic means or the spring 12 'is provided at both ends 12a' of the annular shape fixed to the fixing protrusions 15 formed at each corner of the surface of the first member 10, and the central protrusion 12b '. And a curved portion 12c 'between the both ends 12a' and the central projection 12b ', while being curved toward the corresponding protrusion 15 on which both ends 12a' are fixed on the curved portion 12c '. And a protruding branch portion 12d '.

Meanwhile, in the drawing, although the branch portion 12d 'is shown to protrude when the curved portion is bent toward the protrusion 15, the branch portion 12d' may protrude in various directions including a direction orthogonal to the curved portion.

In addition, the central protrusion 12b 'has the widest width H, and the width H decreases and curves as it extends through the central protrusion 12b' to the annular ends 12a '. Due to the reduction and curvature of such a width, when the external force acts on the protrusion 12b ', elastic force due to the potential is generated.

In addition, the guide means 22 'includes a projection 22a' in contact with the spring 12 ', a curved accommodating portion 22b', and a cylinder for fitting into the cylindrical hole 11 of the first member 10. The fixed part 22c 'of a shape and the projection part 22d' for fitting in the fixing hole 24 formed in the 2nd member 20 are formed integrally.

Here, in FIG. 1, two fixing parts 22c 'are provided for every surface of the protrusion part 22a', and eight pieces are provided in total, but the number of formation is not limited.

In addition, the protrusion 22a 'includes a maximum protrusion 22a1' and a minimum protrusion 22a2 ', so that the extension lines of the maximum protrusion and the minimum protrusion are inclined. On the other hand, the largest protrusion 22a1 'is located on the right side of the minimum protrusion 22a2'.

This is to consider the rotation in the right or clockwise direction of the second member 20, the structure for allowing the second member to move spontaneously when the force is initially applied to the second member, it may be positioned opposite if necessary. .

Therefore, the protrusion 22a 'has a polygonal shape having a maximum protrusion 22a1' and a minimum protrusion 22a2 ', rather than curved at a predetermined curvature.

On the other hand, four projection parts 22a 'and the accommodating part 22b' are provided.

Here, the elastic means or the spring 12 may be preferably composed of a torsion spring, in the present invention, in particular, an injection spring made of plastic (P.O.M) injection molded may be used.

According to this, a thin and light spring (plastic) can be used instead of a thick and heavy spring, and when the axial rotation structure according to the present invention is adopted in a multimedia device such as a mobile phone, the device can be implemented thin and light. do.

Here, the guide 23 has a curved shape with a predetermined curvature. As the guide pin 13 is inserted into the guide 23, the guide pin 13 moves along the inner wall of the guide 23. As a result, the shafts 11 and 22 of the first member 10 and the second member 20 are rotated.

On the other hand, the guide pin 13 is formed in a T-shape having a horizontal portion and a vertical portion, by fixing the vertical portion to the first member 10, the horizontal portion to cross the guide 23, the first It can be configured to prevent the separation of the member 10 and the second member 20.

Meanwhile, in FIG. 1, the first member 10 is illustrated as a quadrangle and the second member 20 is illustrated as a circle having a horizontal end 25. However, the first member 10 is not limited thereto, and the first member 10 is not limited thereto. And according to the type and shape of the member attached to the second member 20, of course, it can be produced in various shapes.

FIG. 2 is a view showing the positional relationship of each member according to each step in which the second member illustrated in FIG. 1 is axially rotated on the first member.

2A is a view showing a first initial state in which the second member 20 is stopped and positioned on the first member 10. The guide pin 13 is the rightmost side of the guide 23. As shown in FIG. Located at the end, the horizontal end 25 of the second member 20 is located facing the bottom surface of the first member (10).

In addition, the projection 12b 'at the center of the spring 12' is located in the receiving portion 22b 'of the guide means 22', and the branch 12d 'of the spring 12' is As described above, the contacting portion 12d 'of the adjacent spring is in contact with the protruding fixing protrusion 15. That is, the branch portions 12d 'are in contact with each other while forming a wedge shape at the rear of the guide pin 13 (the portions where the branch portions contact each other form an arch shape or a wedge shape forming a vertex).

On the other hand, when moving from this first initial state (state (a) of FIG. 2), the user must apply a predetermined force in the axial rotation direction (clockwise direction in the drawing), and accordingly the center of the spring The protrusion 12b 'first contacts the protrusion 22a' of the guide means 22 ', in particular the minimum protrusion 22a2', then moves along the inclination of the protrusion, and then the maximum protrusion of the protrusion 22a '. 22a1 ', it retracts in the lateral direction of the first member 10. As shown in FIG.

That is, as shown in FIG. 2 (b) showing the state in which the second member is rotated approximately 45 ° with respect to the first member 10 and positioned at the second position, the guide pin 13 is rotated about the shaft. Located in the center of the guide 23 of the second member, the horizontal end 25 of the second member 20 is positioned facing the lower left corner of the first member (10).

Further, since the branch portions 12d 'of the spring 12' are adjacent to each other with their vertices removed from the rear of the guide pin 13, the branch portions 12d 'of the entire spring 12' form a circular shape. You will touch each other.

On the other hand, in the state of FIG. 2B, the potential of the spring increases as the protrusion 22a 'of the guide means 22' presses the center protrusion 12b 'of the spring, and in the direction of decreasing the potential The spring will spontaneously move to the next receiving portion 22b 'of the guiding means.

2 (c) is a view showing a final state in which the second member 20 has completed the 90 ° axis rotation on the first member 10, the guide pin 13 is the shaft of the guide 23 rotated Located at the leftmost end, the horizontal end 25 of the second member 20 is located facing the left side of the first member (10).

Therefore, according to the axial rotation structure according to the present invention, the second member 20 is rotated 90 degrees in the clockwise direction with respect to the first member 10 through the state (a) to (c) of FIG. After the stop, and also through the state of Fig. 2 (c) to (a) it can be stopped after rotating 90 ° axis in the counterclockwise direction.

The structure of the present invention has been described above in detail with reference to the drawings. On the other hand, the structure according to the present invention as described above can be applied to various devices. In particular, the present invention can be applied to a multimedia device such as a mobile phone. For example, the first member may include a main body of the mobile phone including a controller and a key input unit, and the second member may include a display. In addition, the second member is configured with a main body of the mobile phone including a control unit and a key input unit, the first configuration is also possible to the reverse configuration of the display is configured.

3 is a view showing an example in which the structure according to the present invention is applied to a multimedia device such as a mobile phone, wherein the first member 10 is provided with a main body of a mobile phone including a control unit and a key input unit 31, and the second member. The member 20 is configured with a display 32.

3A illustrates a rotation state (initial state) of the display of the multimedia apparatus corresponding to the state (a) of FIG. 2, and FIG. 3B illustrates the state (b) of FIG. 2. The rotation state of the display of the corresponding multimedia device (state rotated by 45 ° from the initial state), and FIG. 3C illustrates the rotation state of the display of the multimedia device corresponding to the state of FIG. 2C (initial state). 90-axis rotation from the state and stopped.

On the other hand, it may be configured to change the screen displayed during the axis rotation of the display as described above.

(Other embodiment)

On the other hand, in the above embodiment, the spring 12 'is provided for each side of the first member 10, which is a quadrangle, and is shown as being provided with all four, but can be provided only on the upper side of the first member ( It may be provided with one place), two places or three places, if the first member 10 is a polygonal shape, may be provided in plurality.

In addition, in the above embodiment, although the guide 23 is shown to be formed by extending 90 ° with a predetermined curvature about the axis on the second member 20, the guide 23 is formed by cutting the second member below 360 °. It may be.

Therefore, according to the axial rotation structure according to another embodiment, the second member 20 can be axially rotated less than 360 ° clockwise or counterclockwise with respect to the first member 10, a plurality of axial rotation It becomes possible to stop at the point of.

As described above, according to the present invention, there is an effect of providing a structure in which the second member (moving member) is easily axially rotated on the first member (fixed member) by the action of an external force. In addition, there is an effect that the injection molded elastic member is used for such an axial rotation structure. In addition, by providing the structure according to the present invention to a multimedia device such as a mobile phone, there is an effect of improving the usability of the multimedia device.

Claims (11)

A first member, and a second member provided on the first member and axially rotating with respect to the first member, The first member is provided with an elastic means, the second member is provided with a guide means for guiding the elastic means, The second member receives a force from the outside, moves axially from the first initial position, and after the elastic means of the second member is deformed by the guide means at the second position during movement, spontaneously by an elastic force. Move, the shaft rotation of the second member is stopped as it is stored in the receiving portion formed by the guide means, The elastic means has a ring-shaped both ends fixed to the fixing projections formed at each corner of the surface of the first member, a central projection and a curved portion between both ends and the central projection, The central protrusion has the widest width, and the width H decreases as it extends through the central protrusion to both annular ends, And on the curved portion, a branch portion projecting toward a corresponding projection to which both ends are fixed. The method of claim 1, The first member and the second member has a common rotation axis, The elastic means is provided symmetrically about the axis of the first member, And the guide means is provided symmetrically about an axis of the second member. The method of claim 1, A guide is formed on a surface of the first member or the second member, and a guide pin for moving along the guide is provided on the opposing surface of the second member or the first member. The method of claim 3, And the guide extends by bending 90 ° or 360 ° about the axis. The method of claim 1, The first member or the second member is a axial rotation structure, characterized in that the rectangular flat plate shape, polygonal shape or circular shape. The method of claim 1, And the elastic means is an injection spring made of an injection molded plastic material. A first member, and a second member provided on the first member and axially rotating with respect to the first member, The first member is provided with an elastic means, the second member is provided with a guide means for guiding the elastic means, The elastic means is an injection-molded plastic injection spring, and includes both annular ends fixed to fixing protrusions formed at each corner of the surface of the first member, a central protrusion, and a curved portion between both ends and the central protrusion. The central protrusion has the widest width, and the width H decreases as it extends through the central protrusion to both ends of the annular shape. And on the curved portion, a branch portion projecting toward a corresponding projection to which both ends are fixed. The method of claim 1, The guide means may further include a protrusion and a curved accommodating portion contacting the spring, a cylindrical fixing portion for fitting into the cylindrical hole of the first member, and a protrusion for fitting into the fixing fixing hole formed in the second member. Shaft rotation structure, characterized in that formed. The method of claim 8, And the protrusion has a maximum protrusion and a minimum protrusion, and the extension lines of the maximum protrusion and the minimum protrusion are inclined. The method of claim 9, And the maximum protrusion is located on the right side of the minimum protrusion, or on the left side. A multimedia device having a structure according to any one of claims 1 to 10, And an input unit or a display on the first member, and a display or input unit on the second member.

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