KR102402527B1 - Rotary switch - Google Patents

Abstract

The rotary switch according to an embodiment of the present invention includes a fixed body, a rotating body accommodated in the fixed body and rotatable, a cover coupled to the fixed body, and located under the cover, the projection formed on the rotating body and It may include a first elastic means in contact. And in order to improve the feeling of rotation and the quality of rotation sound, the projection of the rotation body may protrude in an axial direction and a radial direction of the rotation body, respectively.

Description

Rotary switch {Rotary switch}

The present invention relates to a rotary switch.

A rotary switch is to change a contact point and select a circuit by a rotation operation. Accordingly, the rotary switch may vary the circuit configuration by performing on-off control of individual switches according to a rotation operation.

The rotary switch may generate a pulse signal according to an operation of rotating in a clockwise or counterclockwise direction. Accordingly, the rotary switch may be referred to as a rotary encoder switch.

The rotary switch is provided in various products. For example, the rotary switch may be provided in a washing machine. In this case, the rotary switch may be used as an operation device of the washing machine. Accordingly, the user can select a desired operation mode of the washing machine by rotating the rotary switch.

In general, a rotary switch may include a manipulation unit that can be rotated by a user, a rotating body rotating according to the rotation of the manipulation unit, and a fixed body receiving the rotating body to make sliding contact.

In addition, the fixed body may have a switch pattern connected to the terminal. In addition, the rotating body may include a metal plate that is in sliding contact with the switch pattern according to the rotation. The above-described on-off control of the switch may be performed by sliding contact between the metal plate and the switch pattern.

Conventional rotary switches have the following problems.

First, there is a problem in that a space is formed in the longitudinal and transverse directions of the rotating body, so that shaking and vibration are relatively large during rotation.

Second, the conventional rotating body has a problem in that the concavo-convex portion formed on the circumferential surface determines both a rotation sound and a torque required for rotation. Accordingly, the rotational manipulation feeling for tactilely recognizing the user's rotation is relatively rough, and the rotational sound that is dependent on the rotation of the manipulation unit and audibly recognizes the rotation to the user becomes relatively dull.

Third, there is a disadvantage in that it is difficult to finely adjust the allowable torque value that can allow rotation in the manufacturing process of the rotary switch. That is, there is a problem in that fine tuning for the allowable rotation torque of the rotary switch is difficult.

Fourth, a force applied in the axial direction of the rotating body or a force pulled outwardly may be applied to the rotary switch by the user's manipulation. In this case, there is a problem in that the leaf spring and the rotating body are easily deformed (or damaged) by the force applied in the axial direction or the force pulled in the outward direction.

Fifth, there is a problem in that the product life is shortened due to the occurrence of cracks in the irregularities (or protrusions) due to the repeated rotation of the rotating body.

Sixth, since only the fixed body and the cover are coupled to accommodate the rotating body, there is a disadvantage in that the robustness of the rotary switch is relatively poor.

The related prior art literature information is as follows.

KR10-2008-0044464 A, control device for laundry treatment equipment KR10-0670540 B1, rotary switch assembly

The present invention is to solve the problems of the conventional rotary switch described above, and an object of the present invention is to provide a rotary switch that minimizes the space spaced apart from the rotating body.

In addition, an object of the present invention is to provide a rotary switch that minimizes the play between the components due to rotation.

In addition, an object of the present invention is to provide a rotary switch capable of relatively improving a sense of rotation operation and rotation sound capable of imprinting a high-grade image of a product on a user.

In addition, an object of the present invention is to propose a structure of a rotary switch capable of designing a relatively fine rotation allowable torque.

In addition, an object of the present invention is to propose a structure of a rotary switch capable of preventing deformation and damage even when a force applied in an external direction or a force applied in an axial direction acts.

Another object of the present invention is to provide a rotary switch capable of minimizing the occurrence of cracks due to repeated rotation of a rotating body.

In addition, an object of the present invention is to propose a structure of a rotary switch in which the coupling between the components is relatively strong and stable.

In order to achieve the above object, a rotary switch according to an embodiment of the present invention includes a fixed body, a rotating body accommodated in the fixed body and rotatable, and a cover coupled to the upper side of the fixed body so that the rotating body passes through. , A first elastic means located under the cover and in rotational contact with the projections formed in the axial direction on the rotating body and second elastic means located under the cover and in contact with the projections formed in the radial direction on the rotating body. can Accordingly, the first elastic means and the second elastic means can improve the rotational manipulation feeling of the rotary switch and the quality of the rotational sound.

The first elastic means may support the rotating body in the axial direction. And the second elastic means may support the rotating body in the lateral direction. Accordingly, the rotation of the rotating body is performed stably, and it is possible to minimize the occurrence of a gap between the components.

The first elastic means may include a ring shape. And the second elastic means may include a plate shape.

The first elastic means may be called an elastic ring, and the second elastic means may be called a leaf spring.

Meanwhile, the protrusions formed on the rotating body may be formed to protrude in the axial direction and the radial direction of the rotating body, respectively. According to this, unlike the related art, a rotary switch structure capable of functionally separating a sense of rotational manipulation and a rotational sound according to the protrusion direction of the protrusion may be proposed. Therefore, the rotary switch according to the embodiment of the present invention can optimize the sense of rotation operation and rotation sound in terms of the user's sensibility.

The elastic ring is in rotational contact with the projection protruding in the axial direction of the rotating body. According to the elastic ring for pressing the rotating body in the axial direction, the rotating body can minimize the space apart in the axial direction (or up and down direction) than in the prior art.

In addition, the elastic ring is located between the bottom surface of the cover and the base of the rotating body, it is possible to provide a force to the rotating body. Accordingly, it is possible to improve the rotational stability and rotational operation feeling of the rotary switch.

Meanwhile, the rotating body may include a circular base and a shaft extending vertically from the center of the base. And the protrusion formed on the rotating body may include a side protrusion protruding in a radial direction along the outer circumferential surface of the base and an upper protrusion protruding to be perpendicular to the lateral protrusion.

The upper protrusion protrudes upward of the rotating body, and the lateral protrusion protrudes to the side of the rotating body.

The upper protrusion and the lateral protrusion may form a curved surface on each contact surface in contact with the elastic ring or the leaf spring.

In addition, a leaf spring in rotation contact with the side projection may be provided on the lower side of the elastic ring. The lateral projection in contact with the leaf spring may generate an immediate and clear rotational sound.

In addition, the upper protrusion in contact with the elastic ring in the vertical direction (or axial direction) of the rotating body may provide a user with a smooth rotational manipulation feeling.

In addition, the upper protrusion and the lateral protrusion may be formed in a semicircular shape for stable rotational contact.

In addition, the upper projection and the side projection may be formed to have different inclinations due to the difference in durability between the leaf spring and the elastic ring.

In addition, the upper protrusion may form a relatively small inclination angle of the protruding curved surface than the lateral protrusion for smooth rotational contact with the elastic ring.

In addition, in order to generate a rotation sound dependent on the rotation of the rotary switch, the upper projection and the side projection may be positioned to correspond to each other perpendicularly. For example, the diameter formed by the longitudinal section of the upper protrusion and the diameter formed by the cross section of the lateral protrusion may be the same as each other. That is, the start point and the end point at which the upper protrusion and the side protrusion protrude from the base of the rotating body may be the same. Accordingly, it is possible to generate a rotation sound corresponding to the user's rotation operation.

In addition, the upper protrusion and the lateral protrusion may each extend from a common central point to be perpendicular to each other. According to this, it is possible to generate a rotation sound in accordance with the rotation of the rotary switch.

And the upper protrusion may protrude to have a gentle slope from the base than the lateral protrusion.

The upper protrusion and the lateral protrusion may have an elliptical cross-section. For example, the upper protrusion may extend so as to have a smaller radius from the central point (O) toward the highest point, and the lateral protrusion may be formed to have a larger radius from the central point (O) toward the outermost point.

In addition, the upper projection may be formed such that the maximum extension length (V) of the upper projection is smaller than the maximum extension length (R) of the side projection.

In addition, the radius formed on the longitudinal section of the upper projection may be smaller than the radius formed by the cross section of the side projection.

On the other hand, in order to provide an elastic force to the upper projection, the elastic ring may include an elastic projection protruding downward.

The elastic protrusion may be provided in at least two or more.

In addition, the plurality of elastic protrusions may be positioned to achieve mutual symmetry. According to this, since the elastic ring can press the upper projection at at least two symmetrical points, it is possible to guide stable rotation.

In addition, in order to provide a force toward the central axis of the rotating body, the elastic ring may be formed to form a tapered shape in both directions.

That is, the elastic ring may include a first bending part bent to be inclined downwardly from one side and a second bending part bent to be inclined downward from the other side.

In addition, the first bending part and the second bending part may be formed to have the same inclination angle bent from the center of the elastic ring.

In addition, the first bending part and the second bending part may be formed to be symmetrical. According to this, the force acting on the rotating body from the elastic ring can act toward the center, thereby guiding the stable rotation of the rotating body.

In addition, the elastic protrusions formed on the elastic ring may be formed to protrude downward from the first bending part and the second bending part, respectively. For example, the elastic protrusion may protrude perpendicular to the bottom surface of each of the first bending part and the second bending part.

In addition, the elastic protrusion may be formed to be rounded downward.

In addition, in order to reinforce the elastic force of the elastic protrusion, the elastic ring defines an elastic reinforcing hole defined as an opening through which the elastic protrusion and the bending part (first bending part and second bending part) are spaced apart in both directions of the elastic projection. can be formed

In addition, the elastic ring may be provided in a ring type for contacting the upper protrusion downward. Accordingly, it is possible to minimize the gap phenomenon that may occur in the vertical direction (or the axial direction).

In addition, in order to enable fine tuning of the allowable torque in the manufacturing process of the rotary switch, the upper protrusion of the rotating body in contact with the elastic ring can design an allowable torque value (unit kgf cm) of 10 or 100 units, , The lateral projection of the rotating body in contact with the leaf spring can design an allowable torque value (unit kgf·cm) of 1 unit or less.

In addition, the support plate of the bracket is formed to be inclined upward so that the action of the force applied in the axial direction or the force pulled to the outside by the elastic ring and the leaf spring is minimized, and the support groove of the fixture is recessed to correspond to the support plate can be formed

In addition, a shaft stopper forming a step along the lower periphery of the shaft of the rotating body may be in contact with the bottom surface of the cover so as to minimize the influence of the force applied to the elastic ring in the axial direction or the force pulled outward.

In addition, in order to minimize the occurrence of cracks in the elastic ring or the upper protrusion due to repeated rotation, an extension rib extending from the shaft stopper to the upper protrusion in a radial direction may be provided.

The extension rib may stably guide the contact between the elastic ring and the upper protrusion.

In addition, in order to firmly couple the bracket and the fixture, the fixture may include a coupling boss protruding from the outer circumferential surface.

The coupling boss may be inserted into a boss hole formed in the connection plate of the bracket.

In addition, for stable fixing of the bracket, the cover and the fixing body, the fixing body may include a coupling shaft extending upward. In addition, the coupling shaft may be positioned to sequentially pass through the coupling hole of the cover and the insertion hole of the bracket. That is, the coupling shaft may perform a function of guiding the coupling of the cover and the bracket.

In addition, the edge portions of the fixing body and the cover may form a step corresponding to each other. In detail, an inner wall extending vertically upward to form a step is provided at the upper end of the fixture, and an outer wall extending vertically downward from the outer circumference to form a step at the lower end of the cover is provided. In addition, the outer wall and the inner wall may be coupled to be in close contact with each other.

In addition, the bracket may be positioned on the cover so that the rotating body passes through. And the bracket may be coupled to the cover and the fixing body. According to this, since stable coupling and support between the components are maintained, rotational stability of the rotary switch can be improved.

According to the present invention, there is an advantage in that shaking and vibration are reduced by providing a functional and structurally separated protrusion and an elastic ring of the rotating body to minimize the gap between the space and the component spaced apart from the rotating body. As a result, there is an effect that the rotational stability of the rotary switch is improved.

According to the present invention, when the user rotates the manipulation unit, elastic force is applied to the side protrusions and the upper protrusions of the rotating body, thereby minimizing vibration to provide a relatively smooth sense of rotating operation, along with a relatively light rotating sound. has the advantage of providing Accordingly, there is an effect of upgrading the image of the product from the user's sensibility point of view.

According to the present invention, since fine tuning of the allowable torque is possible in the manufacturing process of the rotary switch, there is an advantage in that it is differentiated from the conventional rotary switch and provides an advanced sense of rotational operation. As a result, there is an effect of improving the reliability of the product.

According to the present invention, since the support plate of the bracket is formed to be bent, and the support groove of the fixture is recessed to correspond to the support plate, It can prevent breakage and deformation. That is, the durability of the product is improved, thereby improving the lifespan of the product.

According to the present invention, the extension rib extending to the upper protrusion stably guides the rotational contact between the elastic ring and the upper protrusion according to the rotation of the rotating body and can reinforce the rigidity of the upper protrusion, so cracks are generated in the elastic ring or the upper protrusion It has the advantage of being able to minimize After all, it has the effect of extending the life of the product.

In addition, since the fixing body, the cover, and the bracket are firmly coupled and supported with each other, there is an advantage in improving the robustness of the rotary switch.

In addition, since the outer wall and the inner wall are coupled to be in close contact with each other, there is an advantage that the fixing body and the cover can stably maintain airtightness and sealing.

1 is a perspective view showing a rotary switch according to an embodiment of the present invention;
2 is an exploded perspective view showing the configuration of a rotary switch according to an embodiment of the present invention;
3 is a front view of a bracket according to an embodiment of the present invention;
4 is a perspective view of a cover according to an embodiment of the present invention as viewed from below;
5 is a front view of the fixture according to an embodiment of the present invention viewed from below;
6 is a cross-sectional view taken along line I-I' of FIG. 1;
7 is a perspective view of a rotating body according to an embodiment of the present invention;
8 is an enlarged view showing an enlarged portion A of FIG.
9 is a front view of the rotating body in accordance with an embodiment of the present invention as viewed from above;
10 is a perspective view of an elastic ring according to an embodiment of the present invention;
11 is a front view of an elastic ring according to an embodiment of the present invention;
12 is a combined perspective view showing a coupling relationship between a rotating body, an elastic ring, and a leaf spring according to an embodiment of the present invention;
13 is a cross-sectional view taken along the line J-J' of FIG.
14 is a front view of FIG. 12 ;

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is "connected", "coupled" or "connected" to another component, the component may be directly connected or connected to the other component, but another component is between each component. It will be understood that may also be "connected", "coupled" or "connected".

1 is a perspective view showing a rotary switch according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing the configuration of the rotary switch according to an embodiment of the present invention.

1 and 2 , the rotary switch 1 according to the embodiment of the present invention may include a bracket 10 .

The bracket 10 can be stably combined with other components positioned below. For example, the cover 20 and the fixture 30 positioned under the bracket 10 may be firmly coupled to the bracket 10 .

Specifically, the bracket 10 may form a central opening 11 in the center so that the shaft 105 of the rotating body 100 passes therethrough. For example, the central opening 11 may be formed in a circular shape.

In addition, the bracket 10 may include a rectangular plate. In addition, the bracket 10 may form an insertion hole 12 for guiding the coupling with the fixture 30 in the vertical direction (or the axial direction). The insertion hole 12 may be formed so that the coupling shaft 31 of the fixing body 30 to be described later is inserted and/or fixed.

In addition, the insertion hole 12 may be formed in a number corresponding to the coupling shaft 31 .

In addition, the bracket 10 may include connecting plates 13 vertically extending downwardly from both edges. Accordingly, the bracket 10 may be opened in the front-rear direction. In addition, the connecting plate 13 may be positioned in both directions of the bracket 10 . For example, the bracket 10 may be formed in the shape of tongs.

The connecting plate 13 may form boss holes 15 for guiding the coupling with the fixture 30 in both directions. The boss hole 15 may be formed so that a coupling boss 33 to be described later is inserted and fixed. And the boss hole 15 may be formed in the number corresponding to the coupling boss (33).

The connecting plate 13 may include a connecting guide 14 for guiding the connection with an external component.

The connecting guide 14 may be formed to extend downward from the center of the connecting plate 13 . In addition, the connection guide 14 may be formed to be bent along the extension direction.

In addition, the bracket 10 may form a support plate 18 that is bent from the connecting plate 13 to the inner direction of the bracket 10 .

The support plate 18 may be formed to extend from the lower end of the connection plate 13 toward the center of the bracket 10 . That is, the support plate 18 may extend to have an inclination. A detailed description related thereto will be provided later.

The rotary switch 1 may further include a cover 20 .

The cover 20 may be located below the bracket 10 . In addition, the cover 20 may be positioned to insert or penetrate the central opening 11 of the bracket 10 .

The cover 20 may include a shaft guide 21 for guiding the shaft 105 of the rotating body 100 .

The shaft guide 21 may be formed in the center of the cover 20 . The shaft guide 21 may extend through the central opening 11 . For example, the shaft guide 21 may be formed in the shape of a pipe extending upward.

The shaft guide 21 may be opened in the vertical direction (or axial direction) so that the shaft 105 can be inserted and penetrated. For example, the shaft guide 21 may be formed in a cylindrical shape in which the center of the cover 20 is opened in the vertical direction.

The cover 20 may form a coupling hole 22 at a position corresponding to the lower side of the insertion hole 12 so that the coupling shaft 31 of the fixing body 30 passes therethrough. Similarly, the coupling hole 22 may be formed in a number corresponding to the coupling shaft 31 .

That is, the coupling shaft 31 stably fixes the fixing body 30 , the cover 20 and the bracket 10 by sequentially inserting and penetrating the coupling hole 22 and the insertion hole 12 . can do.

The rotary switch 1 may further include a rotatable rotating body 100 .

The rotating body 100 may be located below the cover 20 . In addition, the rotating body 100 may be positioned so as to penetrate the center of the cover 20 from the lower side of the cover 20 .

Here, the lower side of the cover 20 is defined as including a position in contact with the bottom surface of the cover 20 and a position spaced downward from the bottom surface of the cover 20 .

The elastic ring 200 , the rotating body 100 , and the leaf spring 60 to be described later may be located under the cover 20 .

The rotating body 100 may include a shaft 105 extending upwardly.

The shaft 105 may extend in a longitudinal direction. For example, the shaft 105 may include a cylindrical shape extending upwardly.

The shaft 105 may form a central axis of the rotary switch 1 . In addition, the shaft 105 may extend through the shaft guide 21 of the cover 20 and the central opening 11 of the bracket 10 .

A knob connection groove 108 recessed downward may be formed on the upper surface of the shaft 105 . And the knob connection groove 108 may guide the operation unit (not shown) to be coupled.

Accordingly, when the user rotates the operation unit, the rotating body 100 may receive a rotational force (torque) by the knob connection groove 108 . Accordingly, the above-described switch on-off control can be performed by rotating the rotating body 100 at the same time as the user's rotating operation.

The rotating body 100 may include protrusions 130 and 140 respectively protruding in an axial direction and a radial direction of the rotating body 100 . A detailed description of the configuration of the rotating body 100 will be described later.

The rotary switch 1 may further include an elastic ring 200 .

The elastic ring 200 may be located below the cover 20 . And the elastic ring 200 may form a circular opening 205 (refer to FIG. 10) in the center so that the shaft 105 is penetrated.

The elastic ring 200 may include a ring shape.

The elastic ring 200 may be coupled to the bottom surface of the cover 20 to press the rotating body 100 downward. That is, the elastic ring 200 may be positioned between the cover 20 and the projections of the rotating body 100 .

And the elastic ring 200 may be in contact with the protrusion formed on the rotating body 100 to provide an elastic force.

The elastic ring 200 may include an elastic projection 215 in contact with the projection of the rotating body 100 . The elastic protrusion 215 may provide a force toward the central axis of the rotating body 100 .

The rotary switch 1 may further include a contact plate 50 . The contact plate 50 may be located below the rotating body 100 .

The contact plate 50 may be coupled to the rotating body 100 . For example, the contact plate 50 may be coupled to the bottom surface of the rotating body 100 . In addition, the contact plate 50 may form a plurality of holes into which a plate fixing shaft (not shown) formed on the bottom surface of the rotating body 100 is inserted. Accordingly, the contact plate 50 may rotate together depending on the rotation of the rotating body 100 .

On the other hand, the bottom surface of the rotating body 100 can be understood as the bottom surface of the base 110 to be described later.

The contact plate 50 may be formed of a metal material.

And the contact plate 50 may include a ring shape. In addition, the contact plate 50 may include a contact portion extending downward in a circumferential direction to be in contact with a switch pattern to be described later.

The rotary switch 1 may further include a fixed body 30 and a terminal 40 .

The fixed body 30 may be located below the rotating body 100 . In detail, the fixing body 30 may be located below the contact plate 50 .

And the fixing body 30 may be formed so that a part of the shaft 105 is accommodated as a center.

The fixed body 30 may have a hexahedral shape with an open upper surface. And the fixed body 30 may form an internal space in which the rotating body 100 is accommodated. For example, the inner space of the fixture 30 may be formed as a circular groove.

The fixing body 30 may include a coupling boss 33 for coupling with the bracket 10 .

The coupling boss 33 may be formed to protrude from both sides of the fixing body 30 . In addition, the coupling boss 33 may be formed in a shape corresponding to a position corresponding to the boss hole 15 so as to be inserted and fixed in the boss hole 15 .

The fixing body 30 may further include a coupling shaft 31 for guiding the coupling of the cover 20 and the bracket 10 .

The coupling shaft 31 may sequentially pass through the coupling hole 22 and the insertion hole 12 . In detail, the coupling shaft 31 may extend upwardly from the upper end of the fixture 30 .

The coupling shaft 31 may include a cylindrical shape. For example, the coupling shaft 31 may be respectively located near the vertices along the upper edge of the fixture 30 . In this case, the coupling hole 22 and the insertion hole 12 may be positioned upward to correspond to the coupling shaft 31 .

Accordingly, the coupling shaft 31 and the coupling boss 33 can stably fix and couple the bracket 10 .

The fixture 30 may further include a switch pattern to which the contact plate 50 is in sliding contact. The switch pattern may be formed along a circumferential direction with respect to a central axis.

The switch pattern may be located on a lower surface of the fixture 30 . In addition, the switch pattern may be connected to the terminal 40 . Accordingly, the contact plate 60 rotating together with the rotation of the rotating body 100 may make sliding contact with the switch pattern to perform on-off control of the switch.

The terminal 40 may be coupled to the fixture 30 . For example, the terminal 40 may be formed to be inserted under the switch pattern.

In addition, the terminal 40 may include a plurality of connection terminals connected to a ground (GND), a power source, and the like. For example, the connection terminal may protrude from one side of the fixture 30 and be bent downward.

The rotary switch 1 may further include a leaf spring 60 and an auxiliary leaf spring 70 .

The leaf spring 60 and the auxiliary leaf spring 70 may perform a function of generating a sound according to the rotation of the rotating body 100 . That is, the leaf spring 60 and the auxiliary leaf spring 70 may generate a rotation sound.

The leaf spring 60 and the auxiliary leaf spring 70 may be formed of a metal material.

The leaf spring 60 may be accommodated in the fixing body 30 . And the leaf spring 60 may be located in the lateral direction of the rotating body 100 . In addition, the leaf spring 60 may support the rotation body 100 in a lateral direction.

The leaf spring 60 may be located below the elastic ring 200 . And the upper end of the leaf spring 60 may be in contact with the bottom surface of the front fixing portion 230 (refer to FIG. 12) of the elastic ring 200.

The leaf spring 60 may have a plate shape. And the leaf spring 60 may be in rotational contact with the side protrusion 130 .

On the other hand, since the leaf spring 60 can apply an elastic force to the side protrusion 130 formed laterally on the rotating body 100 , a relatively fine torque is obtained when the rotating body 100 is rotated. It may be provided on the side protrusion 130 . Accordingly, the leaf spring 60 may perform a function of guiding the stable rotation of the rotating body 100 .

The leaf spring 60 may include a central protrusion 65 protruding toward the rotating body 100 . The central protrusion 65 may be formed to engage with the side protrusion 130 of the rotating body 100 . For example, the central protrusion 65 may be formed such that a gently curved surface protrudes toward the rotating body 100 by bending the central portion of the leaf spring 60 .

The central protrusion 65 may be elastically deformed or elastically returned while the lateral protrusions 130 formed in a plurality along the circumferential direction of the rotating body 100 are in rotational contact.

And the central protrusion 65 may be in sliding contact with a valley or a peak formed by a plurality of lateral protrusions 130 .

On the other hand, before the start of elastic deformation or after completion of elastic return, the central protrusion 65 may be positioned to be inserted into the bone formed by the plurality of lateral protrusions 130 . Accordingly, the central protrusion 65 may be formed in a shape corresponding to the shape of the bone formed by the plurality of lateral protrusions 130 .

The auxiliary leaf spring 70 may be located outside the leaf spring 60 with respect to the rotation body 100 . And the auxiliary leaf spring 70 may be accommodated in the fixing body (30).

Briefly describing the generation of the rotation sound, the central projection 65 of the leaf spring 60 may elastically contact as the side projection 130 of the rotating body 100 rotates. According to this, the leaf spring 60 may generate a friction sound or a collision sound while elastic deformation occurs.

In addition, during the elastic deformation of the leaf spring 60 , the auxiliary leaf spring 70 may rub against both ends of the leaf spring 60 to generate a friction sound. And in the process of elastically returning the leaf spring 60 , the auxiliary leaf spring 70 collides with the leaf spring 60 to generate a collision sound.

In addition, a friction sound or a collision sound according to the contact between the elastic ring 200 and the upper protrusion 140 to be described later may be added to the rotation sound.

On the other hand, the upper projection 140 and the elastic ring 200, by providing a torque (torque) to the rotating body 100 has a main function to improve the feeling of rotation of the rotary switch (1). However, as described above, as an incidental function, the upper protrusion 140 and the elastic ring 200 may generate a rotating sound.

Accordingly, the elastic ring 200 , the leaf spring 60 , and the auxiliary leaf spring 70 that friction or collide according to the rotation of the rotating body 100 are light and clear in accordance with the rotation of the rotating body 100 . A rotation sound may be provided to the user.

3 is a front view of a bracket according to an embodiment of the present invention, FIG. 4 is a perspective view of a cover according to an embodiment of the present invention viewed from below, and FIG. 5 is a fixed body according to an embodiment of the present invention viewed from below. It is a front view, and FIG. 6 is a cross-sectional view taken along line I-I' of FIG. 1 .

2 to 6 , the bracket 10 may include a support plate 18 inclinedly extending from the connecting plate 13 .

The support plate 18 may be provided in plurality. For example, the support plate 18 forms the other side facing the first support plate 18a and the third support plate 18c bent from the connection plate 13a forming one side of the bracket 10 , It may include a second support plate 18b and a fourth support plate 18d bent from the connecting plate 13b.

Here, the connecting plate 13 forming one side of the bracket 10 is called a first connecting plate 13a, and the connecting plate 13 facing the first connecting plate 13a is formed as a second connecting plate 13 . It is called a connecting plate (13b). Similarly, the connection guide 14 formed on the first connection plate 13a is called a first connection guide 14a, and the connection guide 14 formed on the second connection plate 13b is a second connection guide. It is called a guide 14b.

The first support plate 18a and the third support plate 18c may be positioned in a direction facing the second support plate 18b and the fourth support plate 18d. That is, the first support plate 18a and the third support plate 18c may form a symmetry with the second support plate 18b and the fourth support plate 18d.

The support plate 18 may extend to be inclined toward the center of the bracket 10 . That is, the support plate 18 may extend obliquely upward from the connection plate 13 .

In more detail, an imaginary extension line drawn upward by a predetermined angle (a) from an imaginary horizontal line (H) drawn from the lower end of the connecting plate (13) so as to be parallel to the upper surface of the support plate (18) and the bracket (10). may be extended according to (c). Accordingly, the support plate 18 may form the virtual horizontal line H and the predetermined angle a.

Here, the predetermined angle a may be defined as an acute angle.

Since the support plate 18, which is bent so as to be inclined upward as described above, couples and/or supports the fixed body 30 upward, from the rotation of the rotating body 100, the fixed body 30, The influence of the cover 20 and the bracket 10 can be minimized. As a result, it is possible to minimize deformation due to an outward pulling force, shaking due to rotation, or play due to repeated rotation.

Meanwhile, the cover 20 may further include a front guide shaft 25 and a rear guide shaft 26 for coupling the elastic ring 200 .

The front guide shaft 25 may be formed to protrude downward from the bottom surface of the cover 20 . In addition, the rear guide shaft 26 may be formed to be symmetrical with respect to the center of the shaft guide 21 .

The front guide shaft 25 and the rear guide shaft 26 may be inserted into guide holes respectively formed to correspond to the front and rear directions of the elastic ring 200 . Accordingly, the elastic ring 200 may be fixed by the front guide shaft 25 and the rear guide shaft 26 .

In addition, the cover 20 may further include a fixing protrusion 29 for fixing and supporting the position of the elastic ring 200 .

The fixing protrusion 29 may be formed to closely contact both ends of the front fixing part 230 (refer to FIG. 10 ) of the elastic ring 200 . For example, the fixing protrusions 28 may be formed to protrude from the bottom surface of the cover 20 as a pair. And the front guide shaft 25 may be located between the pair of fixing projections (28).

In addition, the cover 20 may further include an installation protrusion 27 to be installed and coupled at the correct position with the fixing body 30 .

The installation protrusion 27 may be formed to protrude from the bottom surface of the cover 20 so as to be inserted into the inner space of the fixing body 30 . For example, the installation protrusion 27 may be formed as a pair. And the installation protrusion 27 may be located outward than the fixing protrusion 29 .

In addition, the cover 20 may further include a seating end portion 21a positioned at the lower end of the shaft guide 21 .

The seating end portion 21a may be in contact with a shaft stopper 120 to be described later of the rotating body 100 . That is, the seating end portion 21a may be formed to be seated on the shaft stopper 120 .

According to this, when an outward pulling force or an axial force is applied, the seating end portion 21a comes into contact with the shaft stopper 120 to form a bottom surface of the cover 20 and the rotating body 100 . ) can maintain the space between the projections. That is, the seating end portion 21a and the shaft stopper 120 can preserve a space in which the elastic ring 200 is installed. Accordingly, there is an advantage in that the elastic ring 200 can be prevented from being deformed or damaged.

In addition, the cover 20 may further include an outer wall 24 extending vertically downward along the outer edge.

The outer wall 24 may form a step along the bottom edge of the cover 20 . And the outer wall 24 may be coupled to be in close contact with the upper end of the fixing body (30).

On the other hand, the fixture 30 may further include an inner wall 34 forming a step inward along the upper end.

The inner wall 34 may extend upwardly so as to have a step difference from the upper end of the fixing body 30 . In addition, the inner wall 34 may be formed in a shape corresponding to the outer wall 24 .

The cover 20 may cover the open upper surface of the fixing body 30 so that the outer wall 24 is in close contact with the inner wall 34 from the outside.

In addition, the fixture 30 may further include a support groove 38 into which the support plate 18 is inserted.

The support groove 38 may be formed on the bottom surface of the fixture 30 . In addition, the support groove 38 may be formed at a position corresponding to the support plate 18 . For example, the support groove 38 may be formed by being depressed upwardly by the predetermined angle (a) from the lower end of the fixture 30 .

In addition, the support groove 38 may be formed in a number corresponding to the support plate 18 . For example, the support groove 38 includes a first support groove 38a into which the first support plate 18a is inserted, a second support groove 38b into which the second support plate 18b is inserted, and the third support plate It may include a third support groove 38c into which the 18c is inserted and a fourth support groove 38d into which the fourth support plate 18d is inserted.

According to the configuration of the bracket 10 , the cover 20 and the fixing body 30 described above, the bracket 10 , the cover 20 and the fixing body 30 that are closely coupled to each other are airtight and sealing can be stably maintained. Therefore, there is an effect of preventing the penetration of the urethane coating solution.

7 is a perspective view of a rotating body according to an embodiment of the present invention, FIG. 8 is an enlarged view showing an enlarged portion A of FIG. 7, and FIG. 9 is a front view of the rotating body according to an embodiment of the present invention as viewed from above. to be.

7 to 9 , the rotating body 100 may include a base 110 to which the contact plate 50 is coupled and a shaft 105 extending upward from the center of the base 100 . have.

The base 110 may include a disk shape. And the contact plate 50 may be coupled to the bottom surface of the base 110 . Accordingly, together with the rotation of the rotating body 100 , the contact plate 50 may rotate the internal space of the fixed body 30 .

The rotating body 100 may be connected to a manipulation unit or a control device for a user to manipulate rotation. For example, as described above, the knob connection groove 108 recessed in the upper surface of the shaft 105 may be coupled to the manipulation unit to transmit the torque provided by the user to the rotating body 100 .

The rotating body 100 may further include a shaft stopper 120 extending by a predetermined length along the circumferential surface of the shaft 105 .

That is, the shaft stopper 120 may protrude radially from the lower outer circumferential surface of the shaft 105 and extend in the circumferential direction. For example, the shaft stopper 120 may be formed to extend by a predetermined length in a radial direction from the shaft 105 .

That is, the shaft stopper 120 may form a step in the lower portion of the shaft 105 .

In another aspect, the shaft stopper 120 may extend upward from the base 110 to have a larger diameter than that of the shaft 105 . In this case, the shaft stopper 120 may have a short cylindrical shape.

And the shaft stopper 120 may extend from the base 110 to a position higher than the elastic ring 200 . Therefore, when a force pulled outward or a force is applied to the rotating body 100 in the axial direction, the step formed by the shaft stopper 120 is in contact with the seating end 21a, so that the elastic ring 200) to prevent deformation and/or breakage of

In addition, the rotating body 100 may further include protrusions 130 and 140 respectively protruding in the axial direction and the radial direction.

That is, a plurality of protrusions 130 and 140 are provided on the upper surface and the circumferential surface (or side surface) of the base 110 in the circumferential direction to form an uneven shape.

In other words, the rotating body 100 may include protrusions 130 and 140 protruding in two perpendicular directions.

The protrusions 130 and 140 may be in rotational contact with the elastic ring 200 or the leaf spring 60 . When the rotating body 100 rotates, the elastic ring 200 may provide an elastic force to the protrusions 130 and 140 in the axial direction, and the leaf spring 60 is applied to the protrusions 130 and 140 in the lateral direction. It can provide elasticity.

The protrusions 130 and 140 may include a lateral protrusion 130 protruding in a radial direction along the circumferential surface of the base 110 and an upper protrusion 140 protruding in a vertical direction with the lateral protrusion 130 .

In other words, the side projection 130 and the upper projection 140 may be formed to protrude from the base 110 in two different directions. For example, the side projection 130 and the upper projection 140 may extend in the lateral direction and the axial direction of the base 110 to be perpendicular to each other from a common central point O, respectively.

In addition, the side protrusion 130 and the upper protrusion 140 may extend laterally and upward, respectively, at positions coincident with each other along the circumferential direction of the base 110 .

In other words, the side protrusion 130 and the upper protrusion may be formed perpendicular to each other so that the starting point and the end point protruding from the base 110 are the same. That is, the side projections 130 and the upper projections 140 are not alternately arranged with each other.

According to this, since the rotation sound is simultaneously generated in accordance with the user's rotation operation, it is possible to audibly inform the user of the rotation state.

In addition, a plurality of the side projections 130 and the upper projections 140 may be formed on the outer circumferential surface of the base 100 in the circumferential direction.

The lateral protrusion 130 may be formed to protrude in a lateral direction (or a radial direction) from the circumferential surface of the base 100 . The lateral protrusion 130 may have a side facing outward to have a gently curved surface. And the lateral projection 130 may be formed in a plane with the upper surface and the lower surface coincident with the base (110).

The upper protrusion 140 may be formed to protrude upward from the upper surface of the base 110 . The upper surface of the upper protrusion 140 may be formed in a gently curved surface.

In addition, the upper protrusion 140 may be formed with a curved surface on both sides in order to reinforce rigidity and improve positioning accuracy.

As described above, the side protrusions 130 and the upper protrusions 140 may be referred to as protrusions of the rotating body 100 .

The protrusions 130 and 140 of the rotating body 100 may form a gently curved surface in a protruding direction for stable and smooth rotational contact with the leaf spring 60 or the elastic ring 200 . For example, the side projection 130 and the upper projection 140 may be formed to have a semicircular cross-section.

On the other hand, the side protrusion 130 and the upper protrusion 140 may be extended to have different inclinations due to a difference in design values (eg, durability) of the elastic ring 200 and the leaf spring 60 . have.

The lateral protrusion 130 may be formed so that the first contact point with the leaf spring 60 has a relatively high slope in order to generate a light sound. On the other hand, the upper protrusion 140 may be formed so that the first contact point with the elastic ring 200 has a relatively low slope in order to provide a smooth rotational manipulation feeling.

That is, for smooth rotational contact with the elastic ring 200 , the upper protrusion 140 may have a smaller inclination of the curved surface protruding from the base 110 than the lateral protrusion 130 .

Here, the protruding curved surface of the upper protrusion 140 may be understood as the upper surface of the upper protrusion 140 , and the protruding curved surface of the lateral protrusion 130 may be understood as the outer surface of the lateral protrusion 130 . . Accordingly, the upper surface of the upper protrusion 140 may be formed more gently than the outer surface of the lateral protrusion 130 .

In more detail, based on the common midpoint O of the lateral projection 130 and the superior projection 140 , the distance V from the midpoint O to the uppermost point of the superior projection 140 is the midpoint (O) and the distance to the outermost point of the lateral projection 130 (R) may be smaller than.

In other words, the maximum length (V) at which the upper protrusion 140 extends upward from the base 110 is the maximum length (R) at which the lateral protrusion 130 extends in the radial direction from the base 110 . ) may be smaller than That is, the maximum extension length (V) of the upper projection may be smaller than the maximum extension length (R) of the lateral projection.

In another embodiment, the radius of the longitudinal section of the upper protrusion 140 may be smaller than the radius of the cross section of the side protrusion 130 .

In another embodiment, the longitudinal cross-section of the upper protrusion 140 may have an elliptical shape in which the radius becomes smaller toward the uppermost point. And the cross section of the lateral projection may have an elliptical shape in which the radius increases toward the outermost point.

According to this, since the elastic ring 200 can smoothly slide the upper surface of the upper protrusion 140 formed with a gentle and low inclination while in rotational contact with the upper protrusion 140, a sense of rotational manipulation felt from the user's manipulation unit. can improve

In addition, the leaf spring 60 is in rotational contact with the side protrusion 130 and has a relatively large degree of deformation and friction or collision with a high inclination or height, so that it is possible to generate a relatively large and light rotational sound.

In addition, the rotating body 100 may further include an extension rib 150 extending in a radial direction under the rotating body 100 .

The extension rib 150 may extend radially from the outer circumferential surface of the shaft 105 . As a result, the extension rib 150 may extend radially from the outer circumferential surface of the shaft stopper 120 .

In addition, the extension rib 150 may extend from the shaft stopper 120 to the upper projection 140 . For example, the extension rib 150 may protrude from the circumferential surface (or side surface) of the shaft stopper 120 in a radial direction to extend to the side surface of the upper protrusion 140 .

In addition, the extension rib 150 may be formed to have a lower height toward the radial direction. In other words, the extension rib 150 may be formed to have a smaller height along an extension direction extending from the shaft stopper 120 to the upper protrusion 140 . That is, the upper surface of the extension rib 150 may be formed to be inclined.

In addition, the extension ribs 150 may be formed in a number corresponding to the upper protrusion 140 .

The extension rib 150 may reinforce the rigidity of the upper protrusion 140 . In addition, the extension rib 150 may guide the elastic ring 200 and the upper protrusion 140 so that the contact is performed at an accurate position.

The elastic ring 200 may deviate from the correct position with the upper protrusion 140 due to repeated rotation of the rotating body 100 , and there is a risk of rotational contact. As such a case is repeated, abrasion or cracks may occur in the elastic ring 200 and the rotating body 100 .

However, since the extension rib 150 can prevent positional displacement due to the rotation of the elastic ring 200 , it is possible to prevent wear or cracks from occurring.

10 is a perspective view of an elastic ring according to an embodiment of the present invention, Figure 11 is a front view of the elastic ring according to an embodiment of the present invention.

10 and 11 , the elastic ring 200 may be formed to have a tapered shape.

In detail, the elastic ring 200 may include a first bending part 210 bent downwardly from one side and a second bending part 220 bent downwardly from the other side.

The first bending part 210 and the second bending part 220 may be formed to be symmetrical to each other. For example, when the first bending part 210 forms a semicircle of the elastic ring 200 , the second bending part 220 may form the remaining semicircle of the elastic ring 200 .

Since the first bending part 210 and the second bending part 220 are bent downwardly on both sides from the center of the elastic ring 200 , it is possible to provide a force toward the central axis to the rotating body 100 .

For convenience of explanation of the first bending part 210 and the second bending part 220 , a virtual horizontal line H is set. The virtual horizontal line H may be understood as a horizontal line extending in parallel along the extension plane of the front fixing part 230 .

The first bending part 210 may be bent downward to have a predetermined bending angle b from the virtual horizontal line H. The bending angle b may include an acute angle.

Similarly, the second bending part 220 may be bent downward to have a predetermined bending angle b from the virtual horizontal line H.

Meanwhile, the elastic ring 200 may include elastic projections 215 and 225 in rotation contact with the upper projection 140 .

The elastic protrusions 215 and 225 may be formed to protrude downward from the elastic ring 200 . In addition, the elastic protrusions 215 and 225 may extend so that the protruding portions are rounded. Accordingly, the bottom surfaces of the elastic protrusions 215 and 225 may form a gently curved surface.

In addition, the elastic protrusions 215 and 225 may protrude downward so that both ends are cut from the bending parts 210 and 220 .

In addition, the elastic protrusions 215 and 225 may include a first elastic protrusion 215 and a second elastic protrusion 225 formed to be symmetrical to each other.

The first elastic protrusion 215 and the second elastic protrusion 225 may be formed to be symmetrical to each other.

Accordingly, since the first elastic protrusion 215 and the second elastic protrusion 225 press the upper protrusion 140 at 180° to each other, it is possible to guide the rotation to be more stable. In summary, the elastic ring 200 may press the rotating body 100 at at least two symmetrical points.

The first elastic protrusion 215 may be formed to protrude vertically downward T2 from an imaginary extension line e2 drawn in the extending direction of the first bending part 210 along the bending angle b. .

Similarly, the second elastic protrusion 225 is formed to protrude vertically downward (T1) from an imaginary extension line (e1) drawn in the extension direction of the second bending part 220 along the bending angle (b). can

Therefore, when the rotating body 100 is rotated according to the user's rotational manipulation, the elastic protrusions 215 and 225 have a force FL and a force Fc that presses vertically downwards to the upper protrusion 140 in the central direction (Fc). ) can act as a resultant force (F).

The first elastic protrusion 215 and the second elastic protrusion 225 may be formed to have a width smaller than the width of the bending portions 210 and 220 extending in a circular shape.

Meanwhile, the elastic ring 200 may form elastic reinforcing holes 218 and 219 for reinforcing the elastic force of the elastic protrusions 215 and 225 .

The elastic reinforcing holes 218 and 219 may be defined as spaces spaced apart in a vertical direction between the bottom surface of the elastic ring 200 and the elastic protrusions 215 and 225 .

In detail, the first elastic protrusion 215 may recess a portion of the upper surface of the first bending part 210 downward to protrude vertically downward from the first bending part 210 . In this case, the first elastic protrusion 215 may form an opening 218 spaced apart from the first bending part 210 in both directions.

A space opened in both directions between the first elastic protrusion 215 and the first bending part 210 is called a first elastic reinforcing hole 218 .

Since the elastic reinforcing hole 218 forms an open space below the first bending part 210, the first elastic protrusion 215 may be easily elastically deformed.

Similarly, the second elastic protrusion 225 may also form a second elastic reinforcing hole 219 .

In summary, the elastic ring 200 may form elastic reinforcing holes 218 and 219 defined as openings spaced apart from the elastic projections 215 and 225 and the bending portions 210 and 220 in both directions of the elastic projections 215 and 225.

The elastic ring 200 may further include a front fixing part 230 and a rear fixing part 240 for being fixed to the cover 20 or the fixing body 30 .

The front fixing part 230 and the rear fixing part 240 may be formed of a flat plate having a rectangular shape.

The front fixing part 230 may extend so that a front end protrudes toward the front. The rear fixing part 240 may extend such that a rear end thereof protrudes toward the rear. However, the rear fixing part 240 may have a shorter extension than the front fixing part 230 .

Both side ends of the front fixing part 230 may be fitted into the fixing protrusions 29 of the cover 20 . In addition, the front end of the front fixing part 230 may be inserted or seated in the fixing body 30 . Likewise, the rear end of the rear fixing part 240 may be inserted or seated in the fixing body 30 .

Also, the front fixing part 230 may form a front guide hole 235 into which the front guide shaft 25 is inserted. In addition, the rear fixing part 240 may form a rear guide hole 245 into which the rear guide shaft 26 is inserted.

Accordingly, the elastic ring 200 may be stably supported by the cover 20 and the fixing body 30 . Accordingly, the elastic ring 200 can stably press the upper protrusion 140 of the rotating body 100 .

Meanwhile, the front fixing part 230 and the rear fixing part 240 may be located in the center of the elastic ring 200 . Accordingly, the first bending part 210 and the second bending part 220 may be formed to be symmetrical with respect to the fixing parts 230 and 240 .

And the front fixing part 230 and the rear fixing part 240 may provide a reference of the front and rear positions of the elastic ring 200 .

That is, the front fixing part 230 and the rear fixing part 240 may guide the elastic ring 200 to be installed in the correct position on the cover 20 or the fixing body 30 .

The elastic ring 200, together with the leaf spring 20, may apply an elastic force to the protrusions 130 and 140 of the rotating body 100, but may be formed to have different mechanical properties from the leaf spring 20. . For example, the elastic ring 200 may be formed to have a greater elastic modulus, strength, and durability than the leaf spring 60 .

Accordingly, the elastic ring 200 is a torque applied to the rotating body 100 by providing an elastic force in a larger range than the elastic force provided from the leaf spring 60 to the lateral projection 130 to the rotating body 100 . may be the biggest factor in

If the leaf spring 60 is designed to have a very low modulus of elasticity compared to the elastic ring 200 , even if the degree of deformation of the leaf spring 60 is relatively large, the overall elastic force acting on the rotating body 100 is The influence of the leaf spring 60 may be very small compared to that of the elastic ring 200 .

In other words, the leaf spring 60 may provide a relatively small unit of torque to the rotating body 100 .

That is, in the manufacturing process of the rotary switch 1, the allowable torque value of 10 units or 100 units can be set through the design of the elastic ring 200 and the upper protrusion 140, and the leaf spring 60 And through the design of the side projection 130, it is possible to set the allowable torque value of 1 unit or less.

As an example, assuming that the allowable torque value that allows the optimal smooth rotation operation while tactilely recognizing the rotation operation by the user is 312 (kgf cm), the value of 300 or 310 is the elastic ring 200 and the It can be set through the design of the upper protrusion 140 , and a value of 12 or 2 can be set through the design of the leaf spring 60 and the side protrusion 130 .

Meanwhile, as described above, when the leaf spring 60 is designed to have a relatively large degree of deformation, a fricative sound and a collision sound can be formed to be relatively large. Accordingly, the main function of the elastic ring 200 may be understood to improve the rotational manipulation feeling, and the main function of the leaf spring 60 may be understood to improve the rotational sound.

12 is a coupled perspective view showing a coupling relationship between a rotating body, an elastic ring, and a leaf spring according to an embodiment of the present invention, FIG. 13 is a cross-sectional view taken along J-J' of FIG. 12, and FIG.

12 to 14 , the protrusions 130 and 140 of the rotating body 100 may contact the elastic ring 200 and the leaf spring 60 .

The elastic protrusions 215 and 225 are elastically restored when they are positioned in the valleys formed by the plurality of upper protrusions 140 , and the greatest elastic deformation is achieved when positioned at the top of the upper protrusions 140 .

In addition, the central protrusion 65 is elastically restored when positioned in the valleys formed by the plurality of lateral protrusions 130 , and the greatest elastic deformation occurs when positioned on the floor of the lateral protrusions 130 .

On the other hand, as described above, when the rotating body 100 according to the user's rotational manipulation rotates with respect to the central axis CA, the elastic protrusions 215 and 225 are the force to vertically downwardly press the upper protrusions 140 . A resultant force (F) of (FL) and a force (Fc) pressing in the center direction may act.

That is, the elastic ring 200 may provide a force downward to the rotating body 200 and at the same time provide a force in the direction of the central axis CA. The action of the force F as described above allows the rotation of the rotating body 100 to be stably maintained with respect to the central axis CA. Therefore, it is possible to reduce the shaking according to the rotation of the rotating body 100, and to minimize the deviation from the rotating radius, it is possible to improve the rotational stability.

In addition, since the elastic ring 200 can press the rotating body 100 vertically downward, shaking and vibration are reduced and rotational stability is improved than when supporting the rotating body only in the conventional transverse or lateral direction. can

In addition, since the elastic ring 200 is provided to stably support the rotating body 100 , the internal space of the fixed body 30 can be configured to be compact, and the rotating body 100 can be stably supported. It is possible to minimize the spaced space formed in the axial direction and the radial direction with respect to the projections 130 and 140 of ( 100 ). Therefore, it is possible to minimize the play between the components due to repeated rotation.

Meanwhile, the above-described elastic ring 200 , the leaf spring 60 and the auxiliary leaf spring 70 may be provided with an elastic body. Accordingly, the elastic ring 200 may be referred to as a first elastic means. In addition, the leaf spring 60 may be referred to as a second elastic means, and the auxiliary leaf spring 70 may be referred to as a third elastic means.

1: Rotary switch 10: Bracket
20: cover 30: fixed body
100: rotating body 200: elastic ring

Claims (13)

a fixture having a switch pattern;
a rotating body rotatably installed on the fixed body to make electrical connection with the switch pattern, the rotating body including first and second protrusions protruding in different directions from the outer surface of the base;
a first elastic means in contact with the first protrusion in a direction opposite to the first protrusion by the rotation of the rotating body;
a second elastic means in contact with the second protrusion in a direction opposite to the second protrusion by the rotation of the rotating body; and
and a third elastic means located outside the second elastic means with respect to the rotation body and in contact with the second elastic means by the rotation of the rotation body,
The first projection and the second projection are not alternately arranged with each other,
A maximum length (V) of the first protrusion extending upward from the base is smaller than a maximum length (R) of the second protrusion extending in a radial direction from the base.
The method of claim 1,
The first protrusion protrudes in an axial direction of the rotating body, and the second protrusion protrudes in a radial direction of the rotating body.
The method of claim 1,
The first protrusion and the second protrusion are formed to be positioned on the same line in a radial direction of the rotating body.
The method of claim 1,
The first protrusion and the second protrusion are formed to protrude from the same position along a circumferential direction of the rotating body.
The method of claim 1,
The first elastic means is inserted in the axial direction of the rotating body so as to contact the first protrusion,
The second elastic means is a rotary switch that is installed on the inner circumferential surface of the fixing body so as to contact the second protrusion.
The method of claim 1,
The first elastic means and the second elastic means are formed so that mechanical properties are different from each other, the rotary switch for providing the permissible torque of different units to the rotating body.
7. The method of claim 6,
The mechanical properties include a modulus of elasticity,
The first elastic means is a rotary switch in which the mechanical properties are formed to be greater than that of the second elastic means.
7. The method of claim 6,
The second elastic means is a rotary switch that provides a relatively lower unit of allowable torque than the first elastic means to the rotating body.
6. The method of claim 5,
The first elastic means provides an allowable torque value of 10 or 100 units to the rotating body,
The second elastic means is a rotary switch that provides an allowable torque value of 1 unit to the rotating body.
6. The method of claim 5,
The first protrusion forms a curved surface in contact with the first elastic means,
The second protrusion is a rotary switch for forming a contact surface in contact with the second elastic means as a curved surface.
The method of claim 1,
The rotating body is
a shaft extending from the base to define a central axis;
The first protrusion and the second protrusion extend from the outer surface of the base to have different inclinations from each other.
12. The method of claim 11,
The rotating body is
The rotary switch further includes an extension rib extending in a radial direction from a lower portion of the shaft and corresponding one-to-one to the first protrusion.
13. The method of claim 12,
The extension rib is a rotary switch whose height is lowered toward the first protrusion.

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