JPH0741917U - Rotary pulse switch unit - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a rotary pulse switch unit which has a high degree of freedom and which can easily add complex functions and which can enhance reliability. [Structure] The dial knob 1 is rotatably held in a substantially cylindrical dial knob holder 7, and an uneven portion is provided on the outer peripheral back surface of the dial knob 1 located outside the dial knob holder 7. Further, a rocker arm 4 capable of swinging around a support shaft 6 is arranged on the outer peripheral portion of the dial knob holder, and a convex portion 5 made of a leaf spring that abuts the concave and convex portion of the dial knob holder is attached to the rocker arm 4. During the rotation of the uneven portion, the convex portion 5 is driven so that the rocker arm swings. Also, there are two switches 8 for pulse generation that are selectively activated by the rocker arm.
And 9 are arranged on the outer peripheral portion of the dial knob holder, and the rotation of the dial knob 1 controls ON / OFF of the switch on the lower side in the rotation direction to generate a pulse.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rotary pulse switch unit that can be widely used in various electronic (electrical) devices, and in particular, enables pulse signals to be generated by endless rotation of a dial knob in both directions, The components for generation are arranged on the outer periphery of the dial knob to hollow out the central part, and in this hollowed central part, for example, a push switch or a display part for controlling a related function is arranged. The present invention relates to a rotary pulse switch unit made possible.

[0002]

[Prior art]

 The conventional rotary pulse switch unit had a structure in which a ready-made rotary pulse switch was fastened and fixed to the case with a nut, and a dial knob was fixed to the rotary shaft of the pulse switch. An example of this type of conventional rotary pulse switch unit is shown in FIGS. FIG. 5 is a plan view thereof, and FIG. 6 is a cross-sectional view taken along the line C-C of FIG. 5. As shown in the figure, the conventional rotary pulse switch unit is almost the same as the ready-made rotary pulse switch 15. It has a structure in which a nut 17 is tightened and fixed to the center of a cylindrical case 19, and a dial knob 14 is press-fitted and fixed to a rotary shaft 20 of a pulse switch 15.

The pulse switch 15 receives a current from the electric wire 16c and rotates the dial knob 14 in one direction to rotate the rotary shaft 20 of the pulse switch 15 so that the pulse switch 15 makes a pulse to the electric wire 16a at a constant angle. A signal was being generated. Further, when the dial knob 14 is rotated in the reverse direction and the rotary shaft 20 of the pulse switch 15 is rotated in the reverse direction, a pulse signal is generated from the pulse switch 15 to the electric wire 16b at regular intervals. .

However, the generated pulse signal is configured to be sent to the substrate 18 via the electric wires 16a and 16b connecting the pulse switch 15 and the substrate 18.

[0005]

[Problems to be solved by the device]

 In this way, the conventional rotary pulse switch unit is built around an off-the-shelf rotary pulse switch, so if you try to add multiple functions inside this rotary pulse switch unit, for example, Even if an attempt is made to add a push-button switch that controls this function to the inside of the switch unit, or if an indicator is provided on the top surface of the dial knob 14 and a light source for illuminating it is provided inside the switch unit, This is not possible because the off-the-shelf rotary pulse switch itself is in the center. Therefore, there is a drawback that the degree of freedom is low when it is desired to add a complex function.

An object of the present invention is to provide a rotary pulse switch unit capable of easily adding complex functions and having a high degree of freedom and high reliability.

[0007]

[Means for Solving the Problems]

 According to this invention, the dial knob is attached to a dial knob holder having a substantially cylindrical shape so as to rotate, and an uneven portion is provided on the rear surface of the outer peripheral portion of the dial knob, which is located outside the dial knob holder. In addition, a rocker arm that is capable of swinging movement around a support shaft is provided on the outer peripheral portion of the dial knob holder, and a projection portion that comes into contact with the uneven portion is provided on the rocker arm. The rocker arm is caused to perform a swinging motion about its supporting shaft by performing a driven motion according to the uneven portion that rotates when the knob rotates, and further, the rocker arm selectively moves the rocker arm. Two activated pulse generating switches are disposed on the outer peripheral portion of the dial knob holder on opposite sides of the rocker arm with the support shaft interposed therebetween.

[0008]

[Action]

 When the dial knob is rotated to the right (clockwise) with the above-described structure, the rocker arm is tilted to the lower side in the rotating direction of the dial knob about the supporting shaft by the convex portion of the uneven portion of the dial knob, and the lower side. The signal rises to turn on the switch. When the convex part of the dial knob gets over the convex part of the rocker arm by the rotation of the dial knob, the convex part of the rocker arm fits into the concave part of the dial knob, and the rocker arm returns to the position where the lower switch is not turned on. As a result, the switch on the lower side is turned off and one pulse is generated. After that, as long as the dial knob is rotated to the right, the rocker arm controls the switch on the lower side in the rotation direction to be turned on and off by the convex and concave portions of the dial knob, and the pulse signal will be continuously generated.

On the other hand, when the dial knob is rotated counterclockwise (counterclockwise), the protrusion of the dial knob causes the rocker arm to tilt in the opposite direction to that of the right rotation, and the other switch on the lower side of the rotation direction also. Turn on and let the signal rise. The rotation of the dial knob then turns off this switch, as described above, producing one pulse. Even during this counterclockwise rotation, as long as the dial knob is rotated, the rocker arm controls the on / off switch on the lower side in the rotation direction by the convex and concave portions of the dial knob, and pulse signals are continuously generated. It will be.

Further, according to the configuration of the present invention, since the components for pulse generation are gathered on the outer peripheral portion of the dial knob, even if the rotary shaft of the dial knob is cylindrical, it can be used as a pulse switch. The function is not impaired, and therefore the internal space surrounded by the dial knob and the dial knob holder can be used as a space for providing multiple functions, and the degree of freedom as a pulse switch unit can be improved. it can. Also, the dial knob can be rotated endlessly in either direction.

[0011]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a plan view showing an embodiment of a rotary pulse switch unit according to the present invention, and FIG. 2 is a sectional view taken along the line AA of FIG. 1 when the dial knob of the pulse switch unit of FIG. 1 is rotated clockwise. 3 is a sectional view taken along the line AA of FIG. 1 when the dial knob of the pulse switch unit shown in FIG. 1 is rotated counterclockwise, and FIG. 4 is a sectional view taken along the line BB of FIG.

In this embodiment, a substantially cylindrical hollow dial knob holder 7 is provided, the dial knob 1 is rotatably attached to the dial knob holder 7, and the dial knob holder 7 is attached to the outside of the dial knob holder 7. A plurality of arc-shaped convex portions 21 are provided at equal pitches along the circumferential direction on the rear surface of the outer peripheral portion located to form the concave-convex portion.

Further, a rocker arm 4 that swings around a support shaft 6 is arranged on the outer peripheral portion of the dial knob holder 7, and a plate that is constantly in pressure contact with the uneven portion on the upper center portion of the rocker arm 4. A protrusion 5 having elasticity, which is made of a spring, is incorporated, and the protrusion 5 follows the unevenness that rotates when the dial knob 1 rotates (the protrusions 21 and the recesses of the unevenness of the dial knob holder 7 (two (Between the protrusions 21) is always in contact with each other).

Further, the first and second two switches 8 and 9 for pulse generation which are selectively operated by the hemispherical actuators 4a and 4b at both ends of the rocker arm 4 are provided with the rocker. The arms 4 are arranged on the outer peripheral portion of the dial knob holder 7 on opposite sides of the support shaft 6 with the support shaft 6 interposed therebetween. The switches 8 and 9 and the dial knob holder 7 are attached to the substrate 10, and the dial knob 1 is held by the ring-shaped portion 3a of the case 3 attached to the substrate 10 so as not to come out of the dial knob holder 7. Has been. That is, the dial knob 1 is constantly pressed upward by the convex portion 5 having elasticity of the leaf spring of the rocker arm 4 and is always in contact with the ring-shaped portion 3a of the case 3. The support shaft 6 of the rocker arm 4 is held by a support member 22 (see FIG. 4) having a U-shaped cross section that is integrated with the dial knob holder 7, and the tip thereof is also integrated with the dial knob holder 7. The separated retaining member 23 is in contact.

Further, in this embodiment, a substantially cylindrical hollow slider 11 is provided inside the hollow cylindrical dial knob holder 7 so as to be slidable up and down, and provided integrally with the slider 11. The switch actuating member 24 thus arranged can actuate (turn on) the push button switch 12 located substantially in the center of the dial knob holder 7 by sliding the slider 11 downward. Furthermore, a key top 2 having a design portion for displaying functions and the like formed on a material through which light from the back surface is transmitted is fitted to the upper portion of the slider 11, and the key top 2 is a dial. The knob holder 7 is configured so that it can be illuminated by the light source 13 attached to the substrate 10 inside the knob holder 7.

The push button switch 12 is fixed on the substrate 10 and controls functions related to pulse generation, for example. For example, on / off of the light source 13 may be controlled. Of course, it may be a switch that performs another function. Since the switch operating member 24 of the slider 11 is elastically biased upward by the pressing force of the push button switch 12, the step portion of the dial knob holder 7 normally abuts the step portion of the slider 11. In the state shown in FIG. Further, the lower portion of the switch actuating member 24 is formed wide, but this is to ensure that the push button 12a of the switch 12 can be pushed, and is not limited to such a shape.

Next, the operation of the rotary pulse switch unit of the present embodiment having the above configuration will be described. First, when the dial knob 1 is rotated in the right direction (clockwise direction), the rocker arm 4 is caused to center on the support shaft 6 by the convex portion 21 of the uneven portion of the dial knob 1, and as shown in FIG. Since the dial knob 1 is tilted to the lower side in the rotation direction and the lower operator 4a in the rotation direction of the rocker arm 4 pushes the lower switch 8, the switch 8 is turned on. This causes the pulse signal to rise. When the dial knob 1 is further rotated, the convex portion 21 of the dial knob 1 gets over the convex portion 5 of the leaf spring of the rocker arm 4 with a sense of detent, and the convex portion 5 of the rocker arm 4 protrudes from the convex portion of the dial knob 1. 21 and the next convex portion 21 are fitted in the concave portion. Therefore, the rocker arm 4, which is biased to return to the horizontal state by an elastic force (not shown), has its inclination temporarily reduced and swings from the position of FIG. 2 to the position where the switch 8 on the lower side is not turned on. Move back. As a result, the switch 8 on the lower side is turned off, and one pulse is generated. Below, as long as the dial knob 1 is rotated to the right, the rocker arm 4 controls the switch 8 on the lower side in the rotation direction to be turned on and off by the convex and concave portions of the dial knob 1, and the pulse signal is continuously generated. It will be. During this time, since the rocker arm 4 does not tilt to the other switch 9 on the upper side in the rotation direction, this switch 9 does not emit any signal. Therefore, one pulse of the switch 8 on the lower side in the rotation direction can determine that the dial knob 1 has rotated to the right by a constant angle.

On the other hand, when the dial knob 1 is rotated counterclockwise (counterclockwise), the protrusion 21 of the dial knob 1 causes the rocker arm 4 to rotate rightward as shown in FIG. The operator 4b on the lower side in the rotation direction of the rocker arm 4 pushes the other switch 9 on the lower side in the rotation direction. As a result, the switch 9 is turned on and the pulse signal rises. When the dial knob 1 is further rotated, this switch is turned off and one pulse is generated as in the case of the clockwise rotation. Even during this counterclockwise rotation, as long as the dial knob 1 is rotated, the convex and concave portions of the dial knob 1 cause the rocker arm 4 to turn on / off the switch 9 on the lower side in the rotation direction, and the pulse signal is transmitted. It will be generated continuously. Therefore, even when the dial is rotated to the left, it can be determined that the dial knob 1 has rotated to the left by one pulse with one pulse of the switch 9 on the lower side in the rotation direction. The rotation angle of the dial knob 1 for generating one pulse for right rotation and left rotation is generally different, but it is not necessarily required to be different.

Further, according to the configuration of this embodiment, all the components (mechanisms) for pulse generation such as the pulse generation switches 8 and 9 and the rocker arm 4 are arranged on the outer peripheral portion of the dial knob 1. Therefore, even if the rotary shaft of the dial knob 1 has a cylindrical shape, the function as the pulse switch is not impaired. Therefore, as described above, the push button switch is provided in the internal space surrounded by the dial knob 1 and the dial knob holder 7. 12, the light source 13 and the like can be arranged, and the display portion and the like can be provided on the surface of the key top 2, so that the degree of freedom as a pulse switch unit can be improved and a unit can be added. Value can be increased.

It is needless to say that the above embodiment is merely an example of the present invention, and therefore various modifications and changes can be made as necessary. For example, the concave and convex portions may be formed by forming circular arc-shaped concave portions at an equal pitch along the circumferential direction on the outer peripheral portion of the back surface of the dial knob 1, and the convex portion 5 of the rocker arm 4 is not necessarily a plate. It need not be a spring. Further, the structures and shapes of the dial knob 1, the dial knob holder 7, the rocker arm 4, and the like, and the structures and shapes of the case 3 and the board 10 to which the unit is attached are not limited to those of the embodiment. Of course, elements, parts, etc. other than the push button switch 12 and the light source 13 may be arranged inside the dial knob holder 7.

[0021]

[Effect of device]

 As described above, according to the present invention, the dial knob is rotatably attached to the dial knob holder, and the rocker arm capable of swinging movement about the support shaft is arranged on the outer peripheral portion of the dial knob holder. Then, the rocker arm was caused to perform a swinging motion according to the uneven portion of the dial knob holder, and the two switches for pulse generation were selectively turned on and off to generate pulses. Ready-made tactile switches, etc. can be used as raw switches, which facilitates assembly of the unit. Moreover, by using a ready-made high-reliability switch for pulse generation, the reliability of the unit itself can be improved.

Further, since the constituent elements (mechanisms) for pulse generation can be integrated in the outer peripheral portion of the dial knob, the dial knob can be hollowed and rotatably held on the cylindrical rotary shaft. Becomes In addition, since there is no component for pulse generation in the center of the dial knob, this part can be used as a space for providing multiple functions. By arranging in a space, there is an effect that the degree of freedom as a unit can be improved and the added value of the unit can be increased.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a rotary pulse switch unit according to the present invention.

2 is a sectional view taken along the line AA of FIG. 1 when the dial knob of the pulse switch unit of FIG. 1 is rotated clockwise.

3 is a sectional view taken along the line AA of FIG. 1 when the dial knob of the pulse switch unit of FIG. 1 is rotated counterclockwise.

FIG. 4 is a cross-sectional view of FIG. 1 taken along line BB.

FIG. 5 is a plan view showing an example of a conventional rotary pulse switch unit.

6 is a cross-sectional view of FIG. 5 taken along the line C-C.

[Explanation of symbols]

 1 Dial Knob 2 Key Top 3 Case 4 Rocker Arm 4a, 4b Rocker Arm Operator 5 Rocker Arm Projection 6 Spindle 7 Dial Knob Holder 8, 9 Pulse Generation Switch 10 Board 11 Slider 12 Push Button Switch 13 Light Source 21 Convex part of dial knob 22 Support shaft support member 23 Support shaft retaining member 24 Switch operation member

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Takeshi Suzuki, 1-1, Showa-cho, Kariya city, Aichi Prefecture, Nihon Denso Co., Ltd. (72) Creator Shinji Kobayashi, 1-21-6, Dogenzaka, Shibuya-ku, Tokyo Japan Aviation Electronics Industry Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A substantially cylindrical dial knob holder, a dial knob rotatably attached to the dial knob holder, and a concavo-convex portion provided on a rear surface of an outer peripheral portion of the dial knob, which is located outside the dial knob holder. And a convex portion that comes into contact with the concave-convex portion, the convex portion performing a follower movement according to the concave-convex portion that rotates when the dial knob rotates, thereby performing a swinging motion about a spindle. The rocker arm disposed on the outer peripheral portion of the dial knob holder and the rocking motion of the rocker arm disposed on the outer peripheral portion of the dial knob holder on the respective sides facing each other with the support shaft of the rocker arm interposed therebetween. Two switches that are selectively turned on and off by a switch, and the rocker arm swings by the rotation of the dial knob. Of the two switches, turn on the switch on the lower side in the rotating direction of the dial knob,
A rotary pulse switch unit characterized in that it is turned off to generate a pulse signal. 2. The dial knob and the dial knob holder are each formed in a hollow shape, and separate parts, mechanisms, etc. can be arranged in an internal space surrounded by the dial knob and the dial knob holder. The rotary pulse switch unit according to claim 1, which is characterized in that.