JPH0239311Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention provides switching by the swinging movement of an operating knob swingably supported at the case opening.
The present invention relates to a so-called swing type switch, and in particular to an improvement in a swing type switch that can be easily miniaturized by arranging a switch mechanism near the top of an operating knob.

Conventional technology A conventional swing type switch is, for example,
Some of them were disclosed in Publication No. 136132.

Therefore, the conventional swing type switch disclosed in the above-mentioned publication will be explained based on FIGS. 6 and 7.

1 is the case, 2 is the operation knob, 3 is the spindle,
The operation knob 2 is swingably supported on the switch case 1 by a support shaft 3, and can be tilted from side to side within a certain range using the support shaft 3 as a fulcrum.

A hole 2b is formed at the center of the lower part of the operating knob 2 in an operating protrusion 2a formed integrally with the operating knob 2.
A pressing sphere 5 is installed so as to be freely ejectable via a spring 4.

Inside the case 1, a moderation ridge 1a is integrally formed with the case 1. Therefore, when the operating knob 2 is tilted to either the left or right, the operating knob 2 is in an engaged state and constitutes a moderating mechanism except when being operated arbitrarily due to the engagement between the pressing sphere 5 and the moderating ridge 1a. ing. Further, a movable body 6 which is held in the case 1 and which is slid to open and close the switch by operating the operating knob 2 is formed with a groove 6a for guiding the sliding of the movable body 6.

Protruding guide portions 2c are formed on both sides of the operating protrusion 2a of the operating knob 2, and the guide portions 2c are inserted into the groove portion 6a of the movable body 6.

Furthermore, one end of a movable contact 7 that acts as a spring is fixed to the movable body 6. A fixed terminal 8 that contacts the movable contact 7 is fixed to a substrate 9 installed at the bottom of the case 1.

Therefore, when the operating knob 2 is tilted, the movable body 6 is slid and the movable contact 7 slides on the surface of the fixed contact 8, thereby forming a switch mechanism for opening and closing the switch.

However, in the swing type switch having the above configuration, the switch mechanism and moderation mechanism are controlled by the operating knob 2.
Since it was arranged below the swing fulcrum of
It has been difficult to make the swing type switch smaller, especially to make it thinner.

In addition, in recent years, with the aim of reducing the number of parts and assembling man-hours for automobile switches, so-called switches with electronic control circuits have been desired, in which electronic control circuits related to the switches are built into the switch case. Therefore, when an electronic control circuit is incorporated into the case of the conventional swing type switch described above, it is difficult to design the switch mechanism to have a compact structure as a whole.

Problems to be Solved by the Present Invention The present invention has been devised to solve the above-mentioned conventional problems, and an object of the present invention is to provide a swing type switch that can be easily miniaturized. A further object of the present invention is to provide a swing type switch in which an electronic control circuit can be easily and compactly incorporated.

Means for Solving the Problems The swing type switch according to the present invention is a swing type switch that performs switching by the swing movement of an operating knob that is swingably supported in a case opening. an extension part provided with a fixed contact piece extending to near the top of the operating knob is formed substantially perpendicular to the operating surface of the operating knob on the base plate, and the extended part is slidably connected to and separated from the fixed contact point to form a switch mechanism. A movable body provided with a movable contact piece is swingably supported on an extended portion of the base plate, and an abutting portion that allows the movable element to swing is formed at the top of the operation knob. . .

Embodiments Hereinafter, embodiments of the swing type switch according to the present invention will be described with reference to FIGS. 1 to 5.

Note that the same parts as those shown in FIGS. 6 and 7 are denoted by the same reference numerals, and the explanation thereof will be omitted.

The swing type switch in this embodiment is generally composed of a case 1, an operation knob 2, an electronic control circuit section C equipped with a switch mechanism, and a lower case 10.

The case 1 has a substantially rectangular cylindrical shape, and a flange 12 having mounting claws 12a, 12a is formed in the upper end opening 11 of the case 1. Tongue portions 13 each having a bearing hole 13a are formed in the side wall portions. Further, a locking hole 1 for locking a lower case 10 to the case 1, which will be described later, is provided below the side wall portion.
4 and 14 are drilled. Furthermore, the case 1
Inside, there is formed a partition plate 17 having a pressing sphere insertion part 15 into which a pressing sphere 5 biased by a spring 4 is inserted and a board holding hole 16 which holds an extending part 92 of a board 91 to be described later. has been done. The pressing sphere insertion portion 15 has a hole 15a into which the spring 4 and the pressing sphere 5 are inserted, and a groove 15b at its tip.

The operating knob 2 is composed of an upper wall 21 and a side wall 24 extending downward from the peripheral end of the upper wall 21 in a skirt shape. The outer surface of the upper wall 21 is the operation surface 2
1a, and the top 21b which is the inner surface thereof
A moderation crest 22 that engages with the pressing sphere 5 and constitutes a moderation mechanism, and an abutment portion 23 that swings and moves a movable body 6, which will be described later, are formed in a protruding manner at a desired position. Furthermore, in order to swingably support the operating knob 2 in the opening 11 of the case 1, shaft portions 24a, 24a are provided on the opposing outer surfaces of the side wall 24, and are loosely fitted into the bearing holes 13a, 13a of the case 1. Protruding (first
(See Figure 2). In other words, the operating knob 2 is swingably mounted in the opening 11 of the case 1 using the shaft portion 24a as a pivot.

The electronic control circuit C includes substrates 91, 93 and terminals 8.
1, and each substrate 91, 93 has an electronic element 9.
1a and 93a are connected and arranged. The substrate 9
1 and 93 are connected to each other by a lead wire L (see FIG. 2), and are fixed to the opposing surface of the terminal holder 82, thereby forming a stacked structure with a predetermined interval.

In other words, desired various electronic elements 91a are connected and arranged on the substrate 91 as appropriate.
Further, an extending portion 92 is formed at the upper end of the substrate 91. On one side thereof, a fixed contact portion 92b (see FIG. 5) is printed. In addition, a hole 92a is formed in the extension portion 92 at a desired position,
A switch mechanism is constructed by pivotally supporting a movable body 6, which is provided with a movable contact 7 that slides into and out of contact with the fixed contact portion 92b, in the hole 92a so as to be swingable.

The switch mechanism will be explained in more detail with reference to FIGS. 1, 4, and 5.

The movable body 6 is made of a resin material, and has a main body 61 having a flat plate shape, and has a contact fixing protrusion 61a and a drop-off prevention protrusion 62 on one side of the main body 61.
A shaft 62 is formed at the end thereof, and when the main body 61 swings about the shaft 62 as a fulcrum, it smoothly moves on the inner wall surface of the case 1 as shown in FIG. The sliding protrusion 61b
is provided.

The movable contact 7 is made of a conductive plate and includes a main body 71 and contact portions 74, 74. The main body 71
A hole 73 has a fixing hole 72 and a slot 73a.
is provided. The hole 73 is connected to the shaft 6 of the movable body 6.
2, and has a mechanism to prevent incorrect assembly when the movable contact 7 is assembled to the movable body 6.

The movable contact 7 is assembled by inserting the contact fixing protrusion 61a of the movable body 6 into the holes 72, 72 and then thermally tightening the contact fixing protrusion 61a.
is fixed to.

The movable body 6 to which the movable contact 7 is assembled can swing freely around the shaft 62 by loosely fitting the shaft 62 into the hole 92a of the extension portion 92.
The switch mechanism is configured by holding the switch. In addition, the drop-off prevention protrusion 62a provided on the tip of the shaft 62 of the movable body 6 prevents the movable body 6 from falling out from the hole 92a of the extension portion 92 even if it swings within a predetermined angle. The configuration is such that it does not.

As shown in FIG.
assembled inside. At this time, the extending portion 92 of the substrate 91 described above is arranged in the case 1 approximately perpendicularly to the operating surface 21a of the operating knob 2, and as shown in FIGS. The upper end of is located near the top 21b of the operation knob 2. That is, the switch mechanism provided in the extension portion 92 is as follows:
Approximately half or more of the switch mechanism is housed in the operating knob 2, and the movable body 6 in the switch mechanism includes an abutment portion 23 protruding from the top portion 21b of the operating knob 2;
It is located at the part corresponding to 23.

Furthermore, as shown in FIGS. 1 and 3, the top portion 21b of the operating knob 2 has a moderation ridge 22 that engages the pressing sphere 5 biased to the pressing sphere insertion part 15 of the case 1. It constitutes a moderation mechanism based on the

Next, the lower case 10 is assembled to the case 1 to complete the swing type switch of this embodiment. The lower case 1
0 is fixed to the case 1 by fitting a locking pawl 10a protrudingly formed on the inside thereof into a locking hole 14 of the case 1.

Operation of the Embodiment The operation of the swing type switch with the above configuration will be explained.

First, the operation of the moderation mechanism will be explained based on FIGS. 1 and 3.

FIG. 3 shows the state of the operating knob 2 when it is not operated, and the pressing sphere 5 biased by the spring 4 presses against the central trough of the moderation crest 22, locking the operating knob 2 in the neutral position. There is. When the operation knob 2 is operated by pressing the left or right end of its operation surface 21a,
It swings and moves about the shaft portion 24a as a fulcrum. that time,
The pressing sphere 5 moves toward the apex on the slope of the moderation ridge 22 while compressing and deforming the spring 4. Next, when the pressing force on the operating surface 21a of the operating knob 2 is released, the pressing sphere 5 returns to the central trough of the moderation peak 22 due to the elastic force of the spring 4. In other words, this moderation mechanism is an automatic return type moderation mechanism in which the operation knob 2 always returns to the neutral position upon release of the operation pressing force. In this embodiment, an automatic return moderation mechanism has been described, but it goes without saying that by changing the shape of the moderation peak 22, a moderation mechanism having an arbitrary moderation can be obtained.

Next, the operation of the switch mechanism will be explained based on FIGS. 1, 4, and 5.

The movable body 6, which is pivotally supported by the extension portion 92 of the base plate 91, swings about the shaft 62 as the operating knob 2 swings. This rocking motion of the movable body is achieved by the abutment portion 23 protruding from the top portion 21b of the operation knob 2 pressing the upper end portion of the movable body 6. The contact portion 7 of the movable contact 7 due to the swinging of the movable body 6
4 is a fixed contact portion 92b provided on the extension portion 92;
The switch action is performed by approaching and separating them as appropriate.

Effects of the present invention (a) Since the switch mechanism and the moderation mechanism are configured so that they can be placed near the top of the operating knob, it has become possible to make the swing type switch smaller, especially thinner.

(b) Since the extension section equipped with the switch mechanism is formed approximately perpendicular to the operation surface of the operation knob, the electronic control circuit can be easily and compactly incorporated into the case of the swing type switch, as in the previous embodiment. be able to. Specifically, the extension portion and the substrate can be made of the same plate material.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the swing type switch according to the present invention, in which FIG. 1 is a sectional view, FIG. 2 is an exploded perspective view, and FIG. 3 is an arrow indicated by the arrow in FIG. 1. FIG. 4 is a cross-sectional view taken along the line A--A in FIG. 1, and FIG. 5 is an exploded perspective view of the main parts. 6 and 7 show the prior art of the swing type switch according to the present invention.
The figure is a sectional view showing the moderation mechanism, and FIG. 7 is a sectional view showing the switch mechanism. DESCRIPTION OF SYMBOLS 1... Case, 11... Opening, 15... Pressing sphere insertion part, 2... Operation knob, 21... Upper wall, 2
1a... Operation surface, 21b... Top, 22... Moderation mountain, 23... Abutting portion, 5... Pressing sphere, 6... Movable body, 7... Movable contact, 91... Board, 92...
Extension part, 93... Board, 10... Lower case, C...
...Electronic control circuit.

Claims (1)

[Scope of utility model registration request] In a swing-type switch that performs switching by the swing movement of an operation knob swingably supported in a case opening, one of two opposing boards that are vertically disposed within the case, and on which electronic elements are arranged. A movable contact that slides into and out of contact with the fixed contact to form a switch mechanism is formed substantially perpendicularly to the operating surface of the operating knob, and includes a fixed contact extending to the vicinity of the top of the operating knob. A movable body is swingably supported on an extended portion of the board, an abutting portion for swinging the movable body is formed at the top of the inner surface of the operation knob, and between the two boards. A swing-type switch characterized in that a terminal holder having a terminal is interposed therebetween.