JPH074748Y2 - 2-stage switch - Google Patents

Description

[Detailed Description of the Invention] "Industrial field of application" The present invention is a two-stage switch, in which when the second switch is operated and the second switch is turned on, the second switch is turned on. The present invention relates to a two-stage changeover switch characterized by having a movable plate that relieves the pressing force for pressing the adjacent first switch portions and prevents the first switch portions from being distorted.

[Prior Art] A double-action seesaw switch like the technology disclosed in Japanese Utility Model Laid-Open No. Sho 60-35442 has a first contact and a second contact that are sequentially turned on according to the swing angle of a knob. The contacts are arranged on the left and right of the shaft. Then, first, when the knob is pressed, the first contact is turned on. When the knob is further pushed, the first contact is pushed deeper and the second contact is turned on even though the first contact is turned on. The conventional technique is characterized by such an operation.

[Problems to be Solved by the Invention] In the double action seesaw switch according to the above-mentioned conventional technique, when the second contact is turned on, an extra pressing force is applied to the first contact, and the first contact There is a problem with the durability and switch quality of the contact rubber that holds the contact.

[Means for Solving Problems] The present invention has been devised in order to solve the problems of the above-described conventional technology, and includes a first switch section that is turned on by operating the first step of the knob, A second switch portion that is turned on by operating the second step of the knob, a first push rod that operates the first switch portion, a second push rod that operates the second switch portion, and a shaft as a center. A knob having a pressing portion that swings and presses the second push rod; a movable plate that is rotatably locked under the knob and that abuts on a tip end portion of the first push rod; A moderation member interposed between the movable plate and the knob also provides a two-stage changeover switch having a good operation feeling.

[Operation] When the knob of the two-step changeover switch is pressed and the first step is operated, the first switch section is turned on. When the knob is further deeply pressed and the second step is operated, a click feeling is obtained by the moderation member and the second switch section is turned on. At this time, the spring force of the moderation member compresses and absorbs the excessive pressing force that presses the first switch portion. Therefore, an excessive pressing force is not pressed on the first switch portion, and the durability and quality of the first switch portion can be improved.

[Embodiment] An embodiment of the present invention will be described in detail with reference to FIG.

Reference numeral 1 is a knob that swings around a shaft 2. The knob 1
Is a moderation groove 1a for supporting the steel ball 3 as a moderation member in the center of the inner bottom surface, second push rods 8 at both ends of the bottom surface,
It has inclined surface-shaped pressing portions 1c and 1d that abut against 9. The steel ball 3 is inserted into the blind hole 5a of the movable plate 5 and
When pressed by the spring member 4 inserted in the blind hole 5a, the moderation groove 1a
Is in contact with. The spring member 4 is, as shown in FIG.
For example, it is composed of a cylindrical coil spring. Movable plate 5 is a knob 1
Is pivotally supported on the axis 2 and the like. The blind hole 5a is formed in the protruding cylindrical portion 5b. The tip of the tubular portion 5b is a knob 1
It has notches 5c and 5d that engage with the moderation part 1b having the moderation groove 1a. The movable platen 5 has a first push rod on both ends of the bottom surface.
Pressing surfaces 5e and 5f that are in contact with 6, 7 are formed. The first push rods 6 and 7 are always in contact with the pressing surfaces 5e and 5f of the movable platen 5. The first push rods 6, 7 and the second push rods 8, 9 are the skirt portion 10 of the rubber contact 10.
It is biased by being placed on a, 10b, 10c, and 10d, and is inserted into the supporting portions 11a, 11b, 11c, and 11d of the base 11.
The rubber contact 10 is placed on the printed circuit board 12,
The first movable contact 13a is provided in each of the skirts 10a, 10b, 10c, 10d.
And an elastic member to which the second movable contact 13b is fixed. Base 1
1 supports linearly movably the first push rods 6 and 7 and the second push rods 8 and 9 by the support portions 11a, 11b, 11c, and 11d, respectively, and the bearing portion 11e controls the knobs. 1 is pivotally supported. Printed circuit board 12 is rubber contact 10
First installed inside each skirt 10a, 10b, 10c, and 10d
A fixed contact 14 that contacts the movable contact 13a and the second movable contact 13b,
Having 15. As shown in FIG. 1, the first movable contact is internally provided in the skirt portions 10a and 10b on which the first push rods 6 and 7 contacting the movable plate 5 are placed. The second movable contact 13b is
When the switch is off, the knobs 1 are internally provided in the skirt portions 10c and 10d on which the second push rods 8 and 9 are placed, which are in non-contact with the pressing portions 1c and 1d. Reference numeral 16 is a first switch section including a first movable contact 13a and fixed contacts 14 and 15. Reference numeral 17 denotes a second switch section including a second movable contact 13b and a fixed contact (not shown). First switch section
16 and the second switch unit 17 include skirts 10a, 10b, 10c,
Due to the elasticity of 10d, etc., the first movable contact 13a and the second movable contact 1
It is a tactile push switch or a micro switch that automatically returns 3b to the OFF position.

The present invention has the above-mentioned structure, and its operation will be described in detail with reference to FIG. For example, if the right side of the knob 1 is pressed downward and the first step is operated, the knob 1 and the movable platen 5
Both rotate clockwise about the axis 2. The pressing surface 5e of the movable plate 5 pushes down the first push rod 6.
When the first push rod 6 descends, the skirt portion 10a of the rubber contact 10 bends, the first movable contact 13a contacts the fixed contacts 14 and 15, and the first switch portion 16 is turned on. At this time, the steel ball 3 is in pressure contact with the valley of the V-shaped moderation groove 1a, as in the OFF state.

When the knob 1 is further pressed and the second step is operated, the knob 1 is further rotated clockwise. The pushing portion 1c of the knob 1 pushes down the second push rod 8. When the second push rod 8 descends, the skirt portion 10c of the lower rubber contact 10 bends, the second movable contact 13b contacts the fixed contact, the second switch portion 17 is turned on, and the two skirt portions 10a. ,
Both of 10c bend. At this time, the movable platen 5 is stationary. The steel ball 3 interposed between the knob 1 and the movable plate 5 moves from the valley of the moderation groove 1a to the top of the slope of the moderation portion 1b as the knob 1 rotates. The spring member 4 compresses by pressing the steel ball 3 against the moderation portion 1b by the rotation of the knob 1, and relaxes the pressing force applied to the first switch portion 16. The movable platen 5 rotates integrally with the knob 1 when the first stage operation is performed, and the knob 1 when the second stage operation is performed.
It rotates non-integrally with the first switch portion 16 to relieve the pressing force. Since the knob 1 has the movable plate 5 and the steel ball 3 and the spring member 4 and the moderation member interposed between the first push rod and the first push rod, the rotatable angular range of the knob 1 is larger than that of the movable plate 5. However, the operation stroke of the knob 1 can be widened. Therefore, it is possible to prevent erroneous operations in the first and second steps, reduce the size of the knob 1, and downsize the switch. Also, the second
When the operation of the step is performed, the movable platen 5 is stationary, and the spring member 4 and the steel ball 3 are moved, so that the excessive pressing force applied to the second switch portion 16 is relieved, the durability of the rubber contact 10 and the switch quality. Can be improved. The spring member 4 functions as a moderating member for ejecting the steel ball 3 to give a feeling of moderation to the knob 1, and when the second stage operation is performed to apply a pressure more than desired to the knob 1. ,
One member is provided with a function as a member that allows the spring member 4 to be compressed and rotate the knob 5 in a non-integral manner with the movable plate 5. The second-stage operation has a click feeling due to the moderation member including the moderation groove 1a, the steel ball 3, and the spring member 4, and the operation feeling is good.

When the operator releases the knob 1, the original OFF state shown in FIG. 1 is restored. That is, the second push rod 8 and the first push rod 6 are sequentially raised by the restoring force of the skirt portions 10a and 10b of the rubber contact 10. The first movable contact 13a and the second movable contact 13b are sequentially separated from the fixed contacts 14 and 15 by the restoring force of the skirt portions 10a and 10c of the rubber contact 10, and the first switch portion 16 and the second switch portion 17 are separated. OF
F works. The movable platen 5 is pressed by the first push rod 6 and returns to its original position. The knob 1 is pressed by the second push rod 8 and the steel ball 3 biased by the spring member 4 to return to the original position.

Further, when the left side portion of the knob 1 is pressed downward to operate the first stage and the second stage, the same operation is performed symmetrically to the above.

[Effect of the Invention] The two-stage selector switch according to the present invention has the following effects.

(1) In the present invention, since the moderation member is arranged between the knob swinging about the shaft and the movable plate movably locked under the knob, when the second step operation is performed. The movable plate is stationary, only the knob is swung, and the moderating member is submerged in the blind hole to relieve the pressing force applied to the first switch portion.
Therefore, the invention of the present application prevents an excessive pressing force from being applied to the first switch portion when the second stage operation is performed,
In addition, it is possible to prevent the first switch portion from bending more than necessary, and improve the durability of the first switch portion and the quality of the two-step changeover switch.

(2) In the invention of the present application, when the first step is operated, the knob and the movable plate both swing together in the same direction, and when the second step is operated, only the knob is used as the moderation member. Since the knob is rotated, the rotatable angular range of the knob can be expanded and the operation stroke of the knob can be lengthened. As a result, the invention of the present application can prevent erroneous operations in the first and second stages, reduce the size of the knob, and reduce the size of the two-stage switch.

(3) The invention of the present application, a knob having a pressing portion for pressing the second push rod, a movable plate that is rotatably locked under the knob and abuts on the tip end portion of the first push rod, Since the moderation member interposed between the movable plate and the knob is provided, a small two-stage changeover switch capable of arranging the first push rod and the second push rod in parallel positions at the same distance from the axis. Is.

(4) The operation mode of the invention of the present application is moderation by the first switch section (skirt part of the rubber contact having elasticity) at the first step operation, and at the second step operation,
A moderation member (moderate groove urged by a spring member and a moderation groove to which the steel ball is pressed),
It is a moderation with the switch part (the skirt part of the rubber contact having elasticity). Therefore, the two-step changeover switch of the present invention has a large difference in the operating force between the first step and the second step, does not cause an erroneous operation, and has a good operational feeling.

(5) The moderation member of the present invention is interposed between the knob and the movable plate which is rotatably and rotatably locked under the knob. For this reason, the moderation member of the present invention holds the movable plate with respect to the knob when operating the first stage, and allows the movable plate to swing with respect to the knob when operating the second stage. It has a function to give the knob a second-level detent, and has a click feeling and a good operation feeling link.

(6) The present invention has a moderation member interposed between the movable plate and the knob. As a result, the moderation member of the present invention functions as a support member that holds the movable plate on the knob and rotates the movable plate together with the knob in the same direction during the operation of the first stage, and the second stage. The detent member operates during the operation of, and the movable platen stops, and only the knob swings to act as a depressing member for giving a feeling of moderation to the knob. When a pressure more than desired is applied from the second push rod, the moderation member is retracted and the function as a member that allows the knob to rotate with respect to the movable plate is provided by one member, reducing the number of parts. ing.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing one embodiment of a two-stage changeover switch according to the present invention. 1 ... knob, 1a ... moderation groove, 1b ... moderation part, 1c, 1b ... pressing part, 4 ... spring member, 5 ... movable plate, 6,7 ... first
Push rod, 8, 9 ... Second push rod, 10 ...
… Rubber contacts, 10a, 10b, 10c, 10d …… Skirt, 11 …… Base, 12 …… Printed circuit board, 13a …… First
Movable contact, 13b ... Second movable contact, 14,15 ... Fixed contact, 16 ... First switch part, 17 ... Second switch part.

Claims (1)

[Scope of utility model registration request] 1. A first switch section which is turned on by a first step operation of the knob, a second switch section which is turned on by a second step operation of the knob, and a first switch section which operates the first switch section. A push rod, a second push rod that operates the second switch portion, a knob that has a pressing portion that swings about an axis and that presses the second push rod, and is rotatable below the knob. A two-stage switch comprising: a movable plate that is locked to the first push rod and is in contact with the tip of the first push rod; and a moderation member that is interposed between the movable plate and the knob.