HK1220284B - Rotary electric component - Google Patents

Description

Rotary electric element

Technical Field

The present invention relates to a rotary electric component such as a rotary switch that is opened and closed by rotating an operation shaft.

Background

Conventionally, a rotary switch capable of switching a plurality of contact points has been widely used. For example, in a communication device, a rotary switch is used as a power switch or for realizing functions such as volume adjustment and channel change.

In the case where the rotary switch is used to implement the function of the power switch, the rotary switch is designed to give a click feeling to the user so that the user clearly knows that the power has been turned on or off.

For example, patent document 1 discloses a knob on/off control switch that obtains a click feeling once when the power is turned on and once when the power is turned off. Fig. 9 and 10 are exploded assembly views of the knob on/off control switch 100 disclosed in patent document 1.

The knob on/off control switch 100 includes a knob 101, a rotation shaft 102, a housing 103, a driving part 104, a bracket part 105, a friction part 106, a compliance part 107, a link 108, and a plate 109.

Here, the knob 101 is connected to a rotating shaft 102, and the rotating shaft 102 is connected to a driving member 104. Therefore, when the knob 101 is rotated, the driving member 104 is rotated. The drive member 104 is provided with a drive pin 110, and the drive pin 110 engages with a groove 111 formed in a lower portion of the link 108 (see fig. 10). Thus, when the driving member 104 rotates, the link 108 rotates.

On the other hand, a groove 112 is also formed in the upper portion of the link 108. The bracket pin 113 provided to the bracket member 105 engages with the groove 112. Thereby, the link 108 rotates, and the bracket member 105 rotates.

Here, the friction member 106 is pushed to a stopper mechanism 114 formed in the housing 103 by the compliance member 107. Therefore, when the user turns the knob 101, the bracket member 105 rotates, and the user can feel a click feeling.

Fig. 11 is an exploded assembly view of another knob on/off control switch 200 shown in patent document 1. The knob on/off control switch 200 includes a knob 201, a rotation shaft 202, a housing 203, a driving member 204, a bracket member 205, a friction member 206, a link 207, and a plate 208.

The knob 201 is connected to a shaft 202, and the shaft 202 is connected to a driving member 204. Therefore, when the knob 201 is rotated, the driving member 204 is rotated. The driving member 204 is provided with a hook mechanism 209, and a link pin 210 provided at a lower portion of the link 207 engages with the hook mechanism 209. Thus, when the driving member 204 rotates clockwise, the link 207 rotates counterclockwise.

On the other hand, a groove 211 is formed in an upper portion of the link 207. The bracket pin 212 provided in the bracket member 205 engages with the groove 211. Thereby, the link 207 rotates, and the bracket member 205 rotates.

Here, the friction member 206 is pressed against a stopper mechanism 213 formed in the housing 203 by a compliant member not shown. Therefore, when the user turns the knob 201, the bracket member 205 rotates, and the user can feel a click feeling.

Documents of the prior art

Patent document

Patent document 1: specification of U.S. patent application No. 2012/0298494

Disclosure of Invention

Problems to be solved by the invention

However, in the conventional technique of patent document 1, there is a problem in durability of the knob on/off control switches 100 and 200.

Specifically, in the knob on/off control switch 100 shown in fig. 9 and 10, the driving member 104 and the link 108 are coupled by the driving pin 110. When the knob 101 is rotated counterclockwise by a large amount, the driving pin 110 is disengaged from a groove 111 formed at a lower portion of the connecting rod 108. Subsequently, when the knob 101 is rotated clockwise, the drive pin 110 is engaged with the groove 111 again.

Here, the link 108 and the bracket member 105 are connected by engaging a bracket pin 113 with a groove 112 formed in an upper portion of the link 108. However, when the knob 101 is largely rotated counterclockwise after the wear of the wall surface of the slot 112 increases and the drive pin 110 is disengaged from the slot 111 formed in the lower portion of the link 108, the carrier pin 113 may be disengaged from the slot 112.

In this case, the rotation angle of the link 108 becomes unstable, and when the knob 101 is rotated clockwise, the drive pin 110 may collide against the side surface of the link 108 to damage the drive pin 110.

On the other hand, in the knob on/off control switch 200 shown in fig. 11, the driving member 204 and the link 207 are coupled by the link pin 210. Even in this case, when the knob 201 is rotated clockwise abruptly, the link pin 210 may collide strongly against the wall surface of the hook mechanism 209 formed in the driving part 204 to cause the link pin 210 to be damaged.

The present invention is made to solve the above-described problems, and an object of the present invention is to provide a rotary electric component capable of easily preventing damage to an engagement portion between a driving member and a link.

Means for solving the problems

The rotary electric component of the present invention includes: a spring; a rotating body having a recess for accommodating the spring; a latch rotating together with the rotating body and pressed toward an outer side of the rotating body by the spring; a connecting rod having a driven part with a groove and a part of a side surface being an arc-shaped concave surface, for limiting the rotation of the rotating body; a regulating member having a driving portion and a pin, a part of a side surface of which is an arc-shaped convex surface, and constituting a sheave mechanism in which the pin is engaged with a groove of the link to rotate the link, and the arc-shaped convex surface of the driving portion is engaged with an arc-shaped concave surface of a driven portion of the link in a state where the pin is disengaged from the groove of the link to regulate rotation of the link; and a housing portion having a concave-convex portion along a circumferential direction of an inner circumferential surface and accommodating the rotating body, the latch, the link, and the regulating member, the latch being pressed to the concave-convex portion by the spring.

In addition, the rotary electric component of the present invention includes: a spring; a rotating body having a recess for accommodating the spring; a latch rotating together with the rotating body and pressed toward an outer side of the rotating body by the spring; a link having a pin and a plate-shaped driven portion supporting the pin, for restricting rotation of the rotating body; a restricting member having a driving portion, a part of a side surface of which is an arc-shaped convex surface and which is formed with a groove, the flat plate-shaped driven portion of the link being engaged with the groove to rotate the link, and the arc-shaped convex surface of the driving portion sliding against the side surface of the flat plate-shaped driven portion of the link in a state where the flat plate-shaped driven portion of the link is disengaged from the groove to restrict rotation of the link; and a housing portion having a concave-convex portion along a circumferential direction of an inner circumferential surface and accommodating the rotating body, the latch, the link, and the regulating member, the latch being pressed to the concave-convex portion by the spring.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, it is possible to realize a rotary electric component capable of easily preventing damage to an engagement portion between a driving member and a link.

Drawings

Fig. 1 is an exploded assembly view showing an example of the structure of a rotary electric component according to embodiment 1 of the present invention.

Fig. 2 is an exploded assembly view showing an example of the structure of the rotary electric component according to embodiment 1 of the present invention.

Fig. 3A to 3D are views showing an example of the operation of the sheave mechanism when the pin of the regulating member is disengaged from the groove of the link.

Fig. 4A to 4D are views showing an example of the operation of the sheave mechanism when the pin of the restricting member engages with the groove of the link.

Fig. 5 is a diagram showing a relationship between a normal direction N of a wall surface portion of a groove of a link with which a pin contacts and a moving direction M of the pin.

Fig. 6 is an exploded assembly view showing an example of the structure of a rotary electric component according to embodiment 2 of the present invention.

Fig. 7 is an exploded assembly view showing an example of the structure of a rotary electric component according to embodiment 2 of the present invention.

Fig. 8A to 8D are diagrams illustrating an example of the operation of the rotating mechanism included in the rotary electric element.

Fig. 9 is an exploded assembly view of the knob on/off control switch disclosed in patent document 1.

Fig. 10 is an exploded assembly view of the knob on/off control switch disclosed in patent document 1.

Fig. 11 is an exploded assembly view of another knob on/off control switch shown in patent document 1.

Description of the reference numerals

10. 30-rotation type electric component

11. 31 outer shell part

12. 32 limiting member

13. 33, 108 connecting rod

14. 34 rotating body

15. 35 latch block

16. 36 spring

17. 21, 39 pin

18. 38 motive part

18a, 38a are convex

19. 23, 37, 42 groove

20 driven part

20a arc concave surface

22. 41 support hole

24. 43 opening part

25. 44 recess

26. 45 uneven part

27. 46 support

40 plate-shaped driven part

Side surface of 40a

100 knob on/off control switch

101 knob

102 rotating shaft

103 casing

104 drive unit

105 bracket component

106 friction member

107 compliance member

109 plate

Detailed Description

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

(embodiment mode 1)

Fig. 1 and 2 are exploded and assembled views showing an example of the structure of a rotary electric component 10 according to embodiment 1 of the present invention. The rotary electric element 10 is, for example, a rotary switch or the like that generates a click feeling when a knob, not shown, is turned.

The rotary electric component 10 includes a housing 11, a restricting member 12, a link 13, a rotary body 14, a latch 15, and a spring 16.

The housing 11 accommodates the regulating member 12, the link 13, the rotating body 14, the latch 15, and the spring 16. The housing portion 11 includes: a concave-convex portion 26 to which the latch 15 is urged by the spring 16; and a support 27, to which the link 13 is rotatably attached (see fig. 2).

The restricting member 12 restricts rotation of the link 13. The regulating member 12 is coupled to a rotation shaft, not shown, and rotates in accordance with the rotation of the rotation shaft. The rotation shaft is coupled to a knob, not shown, which is turned by a user when, for example, turning on and off a power supply, adjusting a sound volume, and changing a channel. The sheave mechanism is constituted by combining the restricting member 12 and the link 13.

Specifically, the restricting member 12 includes a pin 17 and a driving portion 18. A part of the side surface of the driving portion 18 is a circular arc-shaped convex surface 18 a.

The link 13 includes a follower 20, a pin 21, and a post hole 22, and the follower 20 has a groove 19 formed therein and has an arc-shaped concave surface 20a in a part of a side surface thereof. The support 27 of the housing portion 11 is engaged with the support hole 22, and the link 13 is rotatably attached to the housing portion 11.

Then, the regulating member 12 rotates, and after the pin 17 engages with the groove 19 of the link 13, the link 13 rotates about the support 27. On the other hand, in a state where the pin 17 is disengaged from the groove 19 of the link 13, the arcuate convex surface 18a of the driving portion 18 of the regulating member 12 engages with the arcuate concave surface 20a of the driven portion 20 of the link 13, and the rotation of the link 13 about the strut 27 is regulated. Hereinafter, the operation of such a sheave mechanism will be described in detail with reference to fig. 3 and 4.

The rotary body 14 has a groove 23, an opening 24, and a recess 25. The pin 21 of the link 13 engages with the groove 23. Then, when the link 13 rotates about the support 27, the rotary shaft 14 also rotates about the central axis of the rotary body 14.

Further, the latch 15 is provided in the opening 24. Next, the spring 16 is disposed in the recess 25 so as to press the latch 15 in the outer direction of the rotating body 14. Thereby, the latch 15 is pressed against the concave-convex portion 26 of the housing portion 11, and a click feeling can be obtained when the rotary body 14 rotates.

Next, the operation of the geneva gear included in the rotary electric element 10 will be described. Fig. 3A to 3D are views showing an example of the operation of the geneva mechanism when the pin 17 of the regulating member 12 is disengaged from the groove 19 of the link 13. Fig. 3B to 3D show the state in which the regulating member 12 is rotated counterclockwise by 10 degrees, 20 degrees, and 30 degrees, respectively, from the state of fig. 3A.

As shown in fig. 3A to 3D, when the regulating member 12 rotates counterclockwise, the pin 17 of the regulating member 12 pushes against the wall surface on the right side of the groove 19 of the link 13. Thereby, the link 13 rotates clockwise about the pillar 27.

Next, after the state of fig. 3D, the pin 17 is disengaged from the groove 19 of the link 13, and the link 13 does not rotate even if the regulating member 12 rotates. Further, the arcuate convex surface 18a of the driving portion 18 of the regulating member 12 engages with the arcuate concave surface 20a of the driven portion 20 of the link 13, and rotation of the link 13 about the strut 27 is suppressed.

That is, since the link 13 does not rotate any further, the rotating body 14 shown in fig. 1 and 2 does not rotate any further, and the number of times of the click feeling generated by the latch 15 and the concave-convex portion 26 is limited to one.

Fig. 4A to 4D are views showing an example of the operation of the sheave mechanism when the pin 17 of the regulating member 12 engages with the groove 19 of the link 13. Fig. 4B to 4D show the state in which the regulating member 12 is rotated clockwise by 10 degrees, 20 degrees, and 30 degrees from the state of fig. 4A. In addition, the state of fig. 4D is the same as the state of fig. 3A.

As shown in fig. 4A to 4D, when the regulating member 12 is rotated clockwise, the pin 17 engages with the groove 19 of the link 13. At this time, the pin 17 pushes against the wall surface on the left side of the groove 19 of the link 13, and the link 13 rotates counterclockwise about the pillar 27. Thereby, the rotating body 14 rotates clockwise, and a click feeling is generated once by the click 15 and the concave-convex portion 26.

Here, the groove 19 may be formed such that the normal direction of the wall surface portion of the groove 19 of the link 13 with which the pin 17 contacts is inclined with respect to the moving direction of the pin 17 in a state where the pin 17 engages with the groove 19 of the link 13.

Fig. 5 is a diagram showing a relationship between the normal direction N of the wall surface portion of the groove 19 of the link 13 with which the pin 17 contacts and the moving direction M of the pin 17. For example, the wall surface of the groove 19 is formed such that the normal direction of the wall surface portion of the groove 19 of the link 13 with which the pin 17 contacts does not form an angle of 180 degrees with respect to the moving direction of the pin 17 at the time point when the link 13 starts rotating as shown in fig. 3A. This can reduce the force required to start the rotation of the link 13.

Further, the wall surface of the groove 19 may be formed such that the normal direction of the wall surface portion of the groove 19 of the link 13 with which the pin 17 contacts is inclined with respect to the moving direction of the pin 17 not only in the state of fig. 3A but also in each state after the rotation of the link 13 is started as shown in fig. 3B to 3D and fig. 4A to 4C. This can reduce the force required to continue the rotation of the link 13.

Further, the wall surfaces of the groove 19 sandwiching the link 13 may be parallel to each other, and the pin 17 may be accommodated between the parallel wall surfaces with a gap therebetween.

Thus, when the pin 17 is disengaged from the groove 19 of the link 13 and when the pin 17 is engaged with the groove 19 of the link 13, the position of the link 13 at which the click feeling is obtained can be made substantially the same when it rotates. Therefore, the user can operate the knob without discomfort.

Further, according to the above configuration, as shown in fig. 5, the relationship between the moving direction of the link 13 and the normal direction of the wall surface portion of the groove 19 with which the link 13 is in contact can be made substantially the same when the pin 17 is disengaged from the groove 19 of the link 13 as when the pin 17 is engaged with the groove 19 of the link 13.

As a result, the force required to rotate the link 13 when the pin 17 is disengaged from the groove 19 of the link 13 is substantially equal to the force required to rotate the link 13 when the pin 17 is engaged with the groove 19 of the link 13. This allows the user to operate the knob without discomfort.

As described above, according to embodiment 1, the groove wheel mechanism is formed, and the circular arc-shaped convex surface 18a of the driving portion 18 is engaged with the circular arc-shaped concave surface 20a of the driven portion 20 of the link 13 in a state where the pin 17 is disengaged from the groove 19 of the link 13, thereby restricting the rotation of the link 13.

Therefore, when the pin 17 is disengaged from the groove 19 of the link 13 and then engaged with the groove 19 again, the pin 17 collides with the side surface of the link 13, and the pin 17, which is the engagement portion between the engagement restriction member 12 and the link 13, is not bent.

(embodiment mode 2)

Fig. 6 and 7 are exploded and assembled views showing an example of the structure of the rotary electric component 30 according to embodiment 2 of the present invention. The rotary electric element 30 is also an element such as a rotary switch that generates a click feeling when a not-shown knob is turned, for example, as in the rotary electric element 30 of embodiment 1.

The rotary electric element 30 includes a housing 31, a restricting member 32, a link 33, a rotary body 34, a latch 35, and a spring 36.

The housing 31 accommodates the regulating member 32, the link 33, the rotating body 34, the latch 35, and the spring 36. The housing portion 31 includes: a concave-convex portion 45 to which the latch 35 is urged by the spring 36; and a support 46, to which the link 33 is rotatably attached (see fig. 7).

The restricting member 32 restricts the rotation of the link 33. The regulating member 32 is coupled to a rotation shaft, not shown, and rotates in accordance with the rotation of the rotation shaft. The rotation shaft is coupled to a knob, not shown, which is turned by a user when, for example, turning on and off a power supply, adjusting a sound volume, and changing a channel.

Specifically, the regulating member 32 includes a prime mover 38, and the prime mover 38 has a groove 37 formed therein and has a convex surface 38a having an arc shape in a part of a side surface thereof. The link 33 includes a pin 39, a flat plate-shaped driven portion 40 that supports the pin 39, and a support hole 41. The support 46 of the outer shell 31 is engaged with the support hole 41, and the link 33 is rotatably attached to the outer shell 31.

Then, the regulating member 32 rotates, the tip end portion of the flat plate-like driven portion 40 of the link 33 engages with the groove 37 of the regulating member 32, and the link 33 rotates about the support 46. On the other hand, in a state where the tip end portion of the flat plate-shaped driven portion 40 is disengaged from the groove 37 of the regulating member 32, the arcuate convex surface 38a of the driving portion 38 and the side surface 40a of the flat plate-shaped driven portion 40 slide, and the rotation of the link 33 about the support 46 is regulated. Hereinafter, the operation of the rotating mechanism will be described in detail with reference to fig. 8.

The rotary body 34 has a groove 42, an opening 43, and a recess 44. The pin 39 of the link 33 engages with the groove 42. Then, when the link 33 rotates about the support 46, the rotating body 34 also rotates about the central axis of the rotating body 34.

In addition, the latch 35 is provided in the opening 43. Next, the spring 36 is disposed in the recess 44 so as to press the latch 35 in the outer direction of the rotating body 34. Thereby, the dog 35 is pressed against the concave-convex portion 45 of the housing portion 31, and a click feeling can be obtained when the rotator 34 rotates.

Next, the operation of the rotating mechanism included in the rotary electric element 30 will be described. Fig. 8 is a diagram showing an example of the operation of the rotating mechanism of the rotary electric element 30. In fig. 8A to 8D, since the regulating member 32 is provided on the other side of the rotating body 34, the regulating member 32 is shown by a broken line.

Fig. 8A and 8B show the operation of the rotating mechanism when the distal end portion of the plate-like driven portion 40 of the link 33 is disengaged from the groove 37 of the regulating member 32. Fig. 8C and 8D show the operation of the rotation mechanism when the tip end portion of the flat plate-like driven portion 40 of the link 33 engages with the groove 37 of the regulating member 32.

As shown in fig. 8A and 8B, when the regulating member 32 rotates counterclockwise, the tip end portion of the flat plate-like driven portion 40 of the link 33 engages with the groove 37 of the regulating member 32, and therefore, the link 33 rotates clockwise about the support 46.

Next, as shown in fig. 8B, when the tip portion of the plate-like driven portion 40 is disengaged from the groove 37 of the link 33, the link 33 does not rotate even if the rotating body 34 rotates. In addition, the arcuate convex surface 38a of the driving portion 38 of the regulating member 32 slides on the side surface 40a of the flat plate-like driven portion 40 of the link 33, and rotation of the link 33 about the support 46 is suppressed.

That is, since the link 33 does not rotate any further, the rotator 34 does not rotate any further, and the number of times of engagement by the latch 35 and the concave-convex portion 45 can be limited to one.

As shown in fig. 8C and 8D, when the regulating member 32 rotates clockwise, the tip end portion of the plate-like driven portion 40 of the link 33 engages with the groove 37 of the regulating member 32. At this time, the link 33 rotates counterclockwise about the support 46. Thereby, the rotating body 34 also rotates counterclockwise, and a click is generated once by the click 35 and the concave-convex portion 45.

As described above, according to embodiment 2, the flat plate-like driven portion 40 of the link 33 engages with the groove 37 of the regulating member 32 to rotate the link 33, and in a state where the flat plate-like driven portion 40 of the link 33 is disengaged from the groove 37, the arcuate convex surface 38a of the driving portion 38 slides on the side surface 40a of the flat plate-like driven portion 40 of the link 33 to regulate the rotation of the link 33.

That is, according to embodiment 2, the restriction member 32 and the link 33 are engaged with each other using the flat plate-shaped follower portion 40 without using a pin. This can easily prevent the engaging portion between the regulating member 32 and the link 33 from being damaged.

Industrial applicability

The rotary electric component of the present invention is suitable for use in a rotary electric component which requires easy prevention of damage to an engagement portion between a driving member and a link.

Claims (4)

1. A rotary-type electric component comprising:

a spring;

a rotating body having a recess for accommodating the spring;

a latch rotating together with the rotating body and pressed toward an outer side of the rotating body by the spring;

a connecting rod having a driven part with a groove and a part of a side surface being an arc-shaped concave surface, for limiting the rotation of the rotating body;

a regulating member having a driving portion and a pin, a part of a side surface of which is an arc-shaped convex surface, and constituting a sheave mechanism in which the pin is engaged with a groove of the link to rotate the link, and the arc-shaped convex surface of the driving portion is engaged with an arc-shaped concave surface of a driven portion of the link in a state where the pin is disengaged from the groove of the link to regulate rotation of the link; and

and a housing portion having a concave-convex portion along a circumferential direction of an inner circumferential surface and accommodating the rotating body, the latch, the link, and the regulating member, the latch being pressed to the concave-convex portion by the spring.

2. Rotary-type electric component according to claim 1,

in the groove of the link, a normal direction of a wall surface portion with which the pin contacts is inclined with respect to a moving direction of the pin.

3. Rotary-type electric component according to claim 2,

the groove of the link has parallel wall surfaces, and the pin is accommodated between the parallel wall surfaces with a gap therebetween.

4. A rotary-type electric component comprising:

a spring;

a rotating body having a recess for accommodating the spring;

a latch rotating together with the rotating body and pressed toward an outer side of the rotating body by the spring;

a link having a pin and a plate-shaped driven portion supporting the pin, for restricting rotation of the rotating body;

a restricting member having a driving portion, a part of a side surface of which is an arc-shaped convex surface and which is formed with a groove, the flat plate-shaped driven portion of the link being engaged with the groove to rotate the link, and the arc-shaped convex surface of the driving portion sliding against the side surface of the flat plate-shaped driven portion of the link in a state where the flat plate-shaped driven portion of the link is disengaged from the groove to restrict rotation of the link; and

and a housing portion having a concave-convex portion along a circumferential direction of an inner circumferential surface and accommodating the rotating body, the latch, the link, and the regulating member, the latch being pressed to the concave-convex portion by the spring.