JP2571580Y2 - Moderation mechanism of switch device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moderation mechanism of a switch device having a relatively large moderation range and a moderation range smaller than the range.

[0002]

2. Description of the Related Art In a blower switch device for an automobile, for example, an operation member is rotatably provided on a switch body, a changeover switch for switching between OFF and automatic operation (AUTO), and a low air flow (LO). There has been proposed a configuration in which a variable resistor for switching between high and high levels (HI) is provided, and the changeover switch and the variable resistor are operated by one operating member.

In this case, in the operation range of the operation member,
A relatively large sense of moderation is preferable in the operation range for operating the changeover switch, whereas a relatively small sense of moderation is preferable in the operation range for operating the variable resistor.

Therefore, as a configuration for obtaining such a sense of moderation, for example, the configurations shown in FIGS. 4 and 5 have been considered. That is, the operating member 1 having the contact holder 1a is rotatably provided in a state in which the contact holder 1a is stored in the case 2a of the switch body 2.
The moderating portion 3 is provided in the case 2a in an arc shape, and the indenter 5 made of a ball pressed against the moderating portion 3 by the compression coil spring 4 is provided in the contact holder 1a. FIG.
Shows the moderation part 3 in an expanded state.

The moderation portion 3 has a large moderation region 6 having a relatively large first moderation recess 6a and a small moderation having a plurality of second moderation recesses 7a smaller than the first moderation recess 6a. The configuration includes an area 7 and a switching area 8 formed between the major degree area 6 and the measure degree area 7 so as to connect them.

Thus, in the above configuration, in the range in which the indenter 5 slides in the large moderation region 6 of the moderation portion 3 with the operation of the operation member 1, the changeover switch 9 is switched with a relatively large moderation feeling. Thereby, the blower (not shown) is switched to three stages of "OFF", "AUTO", and "LO". Further, in a range in which the indenter 5 slides in the measure degree region 7 after passing through the switching region 8, the resistance value of the variable resistor 10 changes with a relatively small sense of moderateness. HI ”in multiple stages.

[0007]

By the way, in the above structure, the operating load when operating the operating member 1 in the range of the degree-of-measure region 6 and the operating load when operating the range of the measure-degree region 7 are required. If you want to change according to
Pressing force of the indenter 5 on the large moderation region 6 and the small moderation region 7
It is necessary to change the pressure contact force against. To do this,
It is necessary to change the height of the large moderation area 6 and the small moderation area 7 in the moderation section 3 and, consequently, the shape of the moderation section 3.

However, the moderation portion 3 has a complicated shape,
In addition, since precision is required, the shape of the moderating portion 3 cannot be easily changed, and therefore, it is not easy to change the operation load as desired.

Accordingly, an object of the present invention is to provide a moderation mechanism of a switch device having a large moderation region and a small moderation region and capable of easily changing an operation load as required.

[0010]

This invention SUMMARY OF THE INVENTION In order to achieve the above object, a switch body, the switch Bode
Having a contact holder movably stored
An operation member having a knob for moving the contact holder, and a large moderation area provided on the switch body to face the contact holder and having a relatively large first moderation recess. A moderation portion having a plurality of second moderation recesses smaller than the first moderation recess, and a moderation portion formed on the switch body so as to face the moderation portion with the contact holder interposed therebetween. A sliding portion provided, a spring member housed in a through hole formed in the contact holder, and one end side of the spring member.
While being accommodated in the through hole by positioning, provided to bias the detent portion by the spring member, the Conta
A first indenter to slide moderating portion in accordance with the movement of Kutohoruda, in the through hole is positioned at the other end of the spring member
A second indenter that is accommodated and urged by the spring member toward the sliding portion, and slides on the sliding portion in accordance with the movement of the contact holder. is there.

[0011]

In the above construction, the operation member is operated to operate the knob.
When the contact holder is moved, the first indenter slides on the moderating part and the second indenter slides on the sliding part in accordance with the movement of the contact holder. At this time, a relatively large feeling of moderation is obtained as the first indenter slides through the large moderation portion of the moderation portion, and a relatively small moderation feeling is obtained as the first indenter slides through the moderation portion. Will be.

In the above configuration, the first and second indenters and the first and second indenters are provided between the moderating portion and the sliding portion facing the moderating portion and the sliding portion. Since the spring member for press contact is provided, by adjusting the distance between the detent portion and the sliding portion, the pressing force of the first indenter against the detent portion and, consequently, the operation load of the operation member are reduced. Can be changed.

In this case, since the sliding portion on the side where the second indenter slides is not a complicated shape like the detent portion, it is easier to change the shape than the detent portion. Therefore, by changing the shape of the sliding portion, the operation load can be easily changed as required.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a blower switch device for an automobile will be described below with reference to FIGS.

2 and 3, a switch body 11 includes a cylindrical case 12 having a front surface closed by a front wall 12a, an insulator 13 and a connector 14 provided on the back surface of the case 12. It is composed of

The operating member 15 includes a circular contact holder 16 rotatably housed between the case 12 and the insulator 13, and a shaft 17 attached to the contact holder 16 and penetrating the front wall 12a. And a knob 18 attached to the distal end of the shaft 17, and the whole is rotated by rotating the knob 18.

The rotation range of the operation member 15 is regulated between the "OFF" position and the "HI" position shown in FIG. 2 by regulating means (not shown).

A fixed contact 19a of the changeover switch 19 and a resistor 20a of the variable resistor 20 are provided at predetermined positions on the upper surface of the insulator 13 in FIG. Correspondingly, the movable contact 19b of the changeover switch 19 and the slider 2 of the variable resistor 20
0b is provided.

The front wall 12 of the case 12 will now be described.
A moderating portion 21 is formed in an arc shape on the inner surface of a so as to face the upper surface of the contact holder 16.

As shown in the unfolded state in FIG. 1, the moderation portion 21 includes a large moderation region 22 having three relatively large first moderation recesses 22a and two moderation peaks 22b,
A moderation region 23 having a plurality of second moderation recesses 23a smaller than the moderation recesses 22a, and a switching region 24 having a slope 24a connecting the large moderation region 22 and the moderation region 23. It is comprised including.

A sliding portion 25 is formed in an arc shape on the upper surface of the insulator 13 so as to face the detent portion 21 with the contact holder 16 interposed therebetween.

As shown in the unfolded state in FIG. 1, the sliding portion 25 has a first flat portion 25a in which a portion corresponding to the large-scale region 22 is set high, and a small-scale region 23 in this case. A second flat portion 25b whose portion corresponding to the first flat portion 25a is set lower than the first flat portion 25a;
The portion corresponding to 4a includes an inclined portion 25c which is set to be inclined.

The contact holder 16 is formed with a through-hole 26 which is located between the click portion 21 and the sliding portion 25 and penetrates in the vertical direction. A spring member 27 made of a coil spring is housed in the through hole 26, and first and second balls made of balls are provided on the upper end side, which is one end of the spring member 27, and the lower end side, which is the other end. Are disposed, and the spring members 2
By the spring force of No. 7, the first indenter 28
The second indenters 29 are urged toward the sliding portion 25, respectively.

Next, the operation of the above configuration will be described. In a state where the operation member 15 is turned to the “OFF” position, the first indenter 28 enters the first moderation concave portion 22a on the left side of the large moderation region 22 as shown by a solid line in FIG. The second indenter 29 is in pressure contact with the first flat portion 25a of the sliding portion 25. In this state, the changeover switch 1
9 is off, and the blower (not shown) is stopped.

When the operating member 15 is operated between the "OFF", "AUTO" and "LO" positions corresponding to the moderate mode area 22, the first indenter 28 is operated in accordance with the operation. While sliding in the area 22, the second indenter 29 slides on the first flat portion 25a. At this time, the first indenter 2
8 changes the changeover switch 19 with a relatively large sense of moderation by sliding in the large moderation region 22.
"F", "AUTO", and "LO".

At this time, the slider 20b of the variable resistor 20 also slides with respect to the resistor 20a in accordance with the rotation of the operating member 15, but the variable resistor 2a
The resistance value of 0 is constant without changing.

When the first indenter 28 enters the first moderation recess 22a on the right side, the second indenter 29 comes into pressure contact with the inclined portion 25c.

When the operating member 15 is operated between the "LO" and "HI" positions corresponding to the measure area 23 through the switching area 24, the first indenter 2 is operated in accordance with the operation.
8 slides in the bar area 23 and the second indenter 29
Slides on the second flat portion 25b. At this time, the resistance value of the variable resistor 20 changes with a relatively small sense of moderation as the first indenter 28 slides in the moderation area 23,
Due to this change in the resistance value, the blower is set to “LO” and “HI”.
Are switched in multiple stages.

At this time, the movable contact 19b of the changeover switch 19 also slides with respect to the fixed contact 19a, but the state of the changeover switch 19 does not change in this range.

Thus, in the above embodiment, the moderation section 2
1 and the sliding portion 25 opposed thereto, the first and second
Indenters 28 and 29, and the first and second indenters 2
Since the spring members 27 are provided for pressing the first and second portions 8 and 29 against the moderation portion 21 and the sliding portion 25, the moderation portions 21 and
By adjusting the distance between the first indenter 28 and the sliding portion 25, it is possible to change the pressing force of the first indenter 28 against the detent portion 21, and thus the operation load of the operation member 15.

In this case, the sliding portion 25 on the side on which the second indenter 29 slides has a shape in which the portion corresponding to the large moderation region 22 of the moderation portion 21 is high and the portion corresponding to the small moderation region 23 is low. And the length dimension L of the spring member 27 between the first and second indenters 28, 29 corresponds to the case where the first indenter 28 corresponds to the first moderation recess 22a of the large moderation region 22; The operation member 1 is set by setting so as to be substantially the same as the case corresponding to the second moderation concave portion 23a of the moderation region 23.
The operation load of No. 5 is configured to be substantially constant.

Here, since the sliding portion 25 on the side where the second indenter 29 slides is not a complicated shape like the detent portion 21, the shape of the sliding portion 25 is easily changed as compared with the detent portion 21. be able to. Therefore, by changing the shape of the sliding portion 25, the operating load can be easily changed as required.

The present invention can be applied not only to the case where the operating member 15 is rotated with respect to the case 12 but also to a case where the operating member 15 is slid linearly, and a switch other than the blower switch device. The present invention can be appropriately modified and implemented without departing from the gist, such as being applicable to the moderation mechanism of the device.

[0034]

[Effects of the Invention] As described above, according to the present invention,
In a device provided with a large moderation region and a small moderation region, a first and second indenter, and these first and second indenters are provided between a moderation portion and a sliding portion facing the moderation portion. Since the spring member for pressing against the sliding portion is provided, by adjusting the distance between the moderating portion and the sliding portion, the pressing force of the first indenter against the moderating portion and, consequently, the operating member Can be changed. And the second
Since the sliding part on the side where the indenter slides is not a complicated shape like the detent part, it is easier to change the shape of the sliding part than the detent part, and therefore, the shape of the sliding part , It is possible to easily change the operation load as required.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, and is a cross-sectional view of a deployed state of a moderation part and a sliding part.

FIG. 2 is a plan view

FIG. 3 is a longitudinal sectional view

FIG. 4 is a diagram corresponding to FIG. 3 showing a comparative example of the present invention.

FIG. 5 is a sectional view of a moderation portion in an unfolded state.

[Explanation of symbols]

11 is a switch body, 15 is an operation member, 16 is a contact holder, 18 is a knob, 19 is a changeover switch, 20 is a variable resistor, 21 is a moderation part, 22 is a moderation area, and 22a.
Is a first moderation concave portion, 23 is a measure moderation region, and 23a is a second moderation region.
, 25 is a sliding portion, 26 is a through hole, 27 is a spring member, 28 is a first indenter, and 29 is a second indenter.

Claims (1)

(57) [Scope of request for utility model registration] 1. A switch body and a contact movably housed in the switch body.
Holder and move its contact holder
An operating member having a knob to be turned; a large moderation region having a relatively large first moderation recess provided on the switch body so as to face the contact holder; and a plurality of regions smaller than the first moderation recess. A moderation portion having a moderation region having two second moderation recesses; a sliding portion provided in the switch body so as to face the moderation portion with the contact holder interposed therebetween; and the contact holder. A spring member housed in a through-hole formed in the spring member; and a spring member positioned in one end of the spring member and housed in the through-hole.
A first indenter urged by the spring member toward the moderating portion to slide on the moderating portion in response to movement of the contact holder; and a first indenter positioned at the other end of the spring member. And housed in the through hole
And a second indenter provided to be urged by the spring member toward the sliding portion and sliding the sliding portion in accordance with the movement of the contact holder. mechanism.