JPS63244533A - Bipole changeover switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of the Invention The present invention relates to a two-pole switching system that switches the polarity of forward and reverse rotation of a motor to control the opening and closing of automobile windows, for example, or the direction of rotation of a power tool. The present invention relates to a switch, and more particularly to a two-pole changeover switch with good operability.

(B) Background of the Invention A commonly used two-pole changeover switch, as shown in FIG. By bringing the movable contact pieces 64, 64 into sliding contact and sliding the slider (not shown) that holds these movable contact pieces 64, 64 together from side to side, the movable contact pieces 64, 64 can be moved as shown by imaginary lines in Fig. 6. The contact piece 64.64 is displaced and the fixed contact piece 63...
・The contact corresponding to the motor 65 is switched, and as a result, the motor 65
The flow of current is switched from the positive polarity side to the reverse polarity side.

However, since this two-pole selector switch is used by being switched to the ON state of either the positive polarity side or the reverse polarity side,
O that temporarily stops the motor operation on the switch itself
Since there is no neutral position for the FF state, the switch has problems in terms of operability and safety, and is also limited in its uses.

(c) Purpose of the Invention The object of the present invention is to provide a two-pole changeover switch which has a neutral position in which it is OFF in addition to the ON state of the positive pole position and the reverse pole position for rotating the motor in the forward and reverse directions.

(d) Structure of the Invention This invention provides a pair of left and right sliders that operate a switch by sliding contacts on two sets of contact patterns insert-molded in a switch coax, and a pair of left and right sliders are provided on two sets of contact patterns that are insert-molded in a switch coax, and a pair of left and right sliders are provided on two sets of contact patterns that are insert-molded in a switch. A partition wall is provided at a position, a slider is urged against this partition wall, and the urging positions of the sliders are set to the OFF position, and the position where the one slider is slid against the urging force is set as a contact point. O on the positive side of the pattern
Set the position corresponding to the N contact, and slide the other slider against the biasing force to the ON position on the opposite pole side on the contact pattern.
Set the position corresponding to the contact point, and connect between the pair of left and right sliders,
It is characterized by a two-pole changeover switch set at the insertion position of the slider operating rod.

(E) Effect of the Invention According to the present invention, during non-switching operation, the pair of left and right sliders corresponding to the two sets of contact patterns are biased to the OFF position, and from this state the slider operation lever is turned off. When one slider is slid to the anti-energizing side, the contact is switched from the OFF position to the ON position on the positive side, and when the other slider is slid to the anti-energizing side, the contact is also switched to the OFF position. position to the ON position contact state on the reverse polarity side.

(f) Effect of the invention Therefore, during switching operations, it is possible to select the contact corresponding side of either the positive or reverse polarity ON position from the neutral OFF position, which is easy to operate. In addition, after the slider is operated, the slider receives force and automatically returns to its original position, making it especially suitable for cases where delicate switch adjustments are required, offering excellent operability and safety. This is a switch with a wide range of applications.

(g) Examples of the invention An embodiment of the present invention will be described in detail below based on the drawings.

The drawing shows an on-vehicle switch for automobile window control, with a second
In the figure, this in-vehicle switch 11 is constructed by integrating operation covers 12 corresponding to the upper and lower sides and a base 13, and is installed, for example, on a panel on the side of the driver's seat.

The above-mentioned operation cover 12 has first to fourth switch buttons 14 to 17 on the top surface for opening and closing operations corresponding to various windows installed in the automobile, and locks and unlocks the WIWi operation of the windows. 5th switch button 18 for
These buttons 14 to 18 are arranged such that their pressing surfaces are exposed on the upper surface of the operation cover 12.

The above-mentioned first to fourth switch buttons 14 to 17 are pivotally supported on both sides within each upper surface recess 19 of the operation cover 12, and are pivoted in a seesaw shape within the upper surface recess 19 with the pivot support as a fulcrum. These buttons 14 to 1 are normally provided so as to be tiltable.
7 is in a neutral position, and from this neutral position, the front ends of the switch buttons 14 to 17 are raised and pressed down again to tilt them. At this time, on the front end side of the switch button, the upper surface four parts 19 are provided with a space large enough for a fingertip to be able to be pulled up with a fingertip.

By pulling the front end of the switch button toward you with your fingertip, a forward rotation signal for the motor that closes the window is output via the switch unit, which will be described later, and the front end of the switch button is also pushed down. This is set to output a reverse rotation signal for the motor that opens the window.

The fifth switch button 18 is stored and held in the upper opening 20 of the operation cover 12 in a tiltable manner and with the upper surface protruding a certain distance, and when one OFF side is pressed down and tilted,
A setting signal for an unlocked state in which the window can be opened and closed is output, and when the other ON side is pressed and tilted, a setting signal for a locked state in which the opening and closing operations of the windows at various locations are regulated is output.

By the way, as shown in FIG. 3, the contact portion of these switch buttons 14 to 18 is a slider operating rod 21 that is vertically installed at the bottom of the button. It tilts left and right about a fulcrum, and by this tilting action, a switching operation is performed in correspondence with a slide shaft of a switch unit 22, which will be described later.

As shown in FIGS. 1, 4, and 5, the above-described switch unit 22 includes a switch case 23, a movable contact 24.24, a slider 25.25, and a slider return spring 26.26. It is composed of a leaf spring 27, 27 and a switch cover 28.

The switch case 23 described above has six contact pieces 29 to 33.
．． Insert molding is performed with 298 in parallel, and this -
The surface is partitioned at the center by a partition wall 34 and has a pair of recesses 3 on the left and right sides.
5.35, and the contact pieces 29 to 33.29a are exposed in parallel at the same pitch flush with the concave surfaces in these concave portions 35.35, and a pair of left and right movable electrodes (to be described later) are formed on each exposed surface. The contacts 24.24 correspond to sliding contact.

In this case, in the left recess 35 partitioned by the partition wall 34, three contact pieces 29 to 29 as the first contact pattern P1 are provided.
31 is located, and in the right quadrant 35 are three wooden contact pieces 32, 33, 29a as the second contact pattern P2.
Movable contacts 24 and 24, which will be described later, are placed in contact with these contact patterns p1 and p2, respectively, independently of each other.

Further, among the six contact pieces 29 to 33.29a, the contact pieces 29.29a on both sides are integrally formed and electrically connected,
These are the ON contact pieces 2 of each contact pattern P1 and P2.
9.29a, these ON contact pieces 29,2
Both contact pieces 30 .
33 is set for the OFF contact piece and the common contact piece.

Each common contact piece 30.33 is connected to the motor M via a lead wire, and the other contact pieces 31°32.29a
are similarly connected to the electrodes via lead wires.

The above-mentioned movable contactor 24 is provided in a W shape, and has a swing-permitting protrusion 36 protruding from the center of the upper surface of the W shape, and a protrusion 36 extending from the lower surface of the contact patterns Pi and P2, which are arranged in parallel, on both sides of the contact pieces. A W-shaped bottom contact portion is provided which makes contact at two points on the left and right.

The movable contacts 24 are provided in a pair on the left and right,
In the recesses 35, 35, due to the sliding action of the corresponding sliders, which will be described later,
It is operated by sliding in its longitudinal direction. As a result, one of the movable contacts 24 is connected to the contact piece 2 on the first contact pattern P1.
9 to 31, and the contact positions of the other movable contact 24 are independently and variably operated between the contact pieces 32, 33, and 29a on the second contact pattern P2, so that the direction of current flow can be changed. can be switched.

The slider 25 described above is attached to each recess 3 of the switch case 23.
5.35, and is accommodated in a pair of left and right sliding positions corresponding to each other, and an engagement recess 37 for pressing down and supporting the above-mentioned movable contact 24 is formed on the lower surface of this, and furthermore, the engagement recess 37 in the engagement recess 37 is A projection-accommodating hole 38 into which the above-mentioned swing-allowing projection 36 is fitted is formed in the center. This protrusion corresponding hole 38
is provided in the shape of a spherical concave portion corresponding to the spherical surface of the rocking permitting protrusion 36, whereby the movable contact 24 is supported at one point.
When sliding, it slides while being allowed to swing in any direction about the swing allowing protrusion 36 as a fulcrum, and a smooth sliding action is achieved.

By the way, a slider return spring 26.26 is interposed in a compressed state between the wall surface of the slider 25.25 on the side opposite to the partition wall 34 and the inner wall surface of the switch case 23, so that these sliders 25.25 are centered. The position of the first contact pattern is regulated from the center which is biased and moved toward the partition wall 34 side of the section, and the biased and moved positions are set to the OFF position, and conversely, the first contact pattern resists this biasing force. P1 side slider 25
The sliding position where the slider 25 on the second contact pattern P2 side is slid against the biasing force is set to the position corresponding to the ON contact on the positive pole side, and the sliding position where the slider 25 on the second contact pattern P2 side is similarly slid against the biasing force is set to the position corresponding to the ON contact on the positive pole side. It is set in a position that corresponds to ON contact.

For this reason, the sliders 25, 25 are normally biased by slider return springs 26, 26 to be in the neutral OFF position, and are switched from this state to either the positive or reverse polarity ON position.

Furthermore, after the slider 25 has been slid, it automatically returns to its original position under the urging force of the slider return spring 26, making the switching operation extremely easy.

Furthermore, a fitting recess 39.39 is formed on the top surface of the slider 25.25 for fitting a leaf spring 27.27, which will be described later, and a fitting recess 39.39 is formed in the center of the top surface to correspond to the slider operating rod 21 of the switch button. A slide shaft 40.40 is provided protrudingly for this purpose.

The above-mentioned leaf spring 27.27 is provided in a bent shape and is housed in the fitting recess 39 of the slider, and a through hole 41 passing through the slide shaft 40 is formed in the center of the bent shape. A circular arc-shaped protrusion 42 is formed protruding from the portion, and this circular arc-shaped protrusion 42 is engaged with a touch-sensitive portion of the switch cover 28, which will be described later.

The above-mentioned switch cover 28 is provided in a box shape with an open negative side, and a pair of left and right feel corresponding parts 43 corresponding to the above-mentioned arc-shaped protrusions 42 and 42 are provided in the sliding direction on one side of the box shape. .43 is engraved, and when the above-mentioned arc-shaped protrusion 42 slides, it engages with this feel corresponding part 43 to accurately position the slider 25, and also slides to change the polarity of the switch. The switch is switched, and the operating feeling when the switch buttons 14 to 18 are engaged vigorously is transmitted to the switch buttons 14 to 18 through the elastic action of the leaf spring 27.

Further, in the opposing wall surface of the switch cover 28, there is a slide hole 4 that allows the above-mentioned slide shaft 40, 40 to protrude upward.
4.44 is installed through it, and a connecting piece 45 is installed around the outer periphery.
are provided vertically, and the fitting recesses 46 carved on the inner surfaces of the connecting pieces 45 fit into the fitting projections 47 formed on the outer periphery of the switch case 23.
The switch cover 28 is integrally connected to the switch case 23 so as to cover the switch case 23 with the leaf spring 27 slightly compressed from above.

The lower end of the slider operating rod 21 mentioned above is interposed between these slide shafts 40 degrees 40 projecting left and right, and one slider shaft 40 is moved by the movement of the slide operating rod 21 located in the middle in the sliding direction. One of the sliders 25 is slidably operated through the slider 25.

The in-vehicle switch configured in this way is provided exclusively for the driver, and can be pressed from the driver's seat by pressing any switch button 14 to 1.
By inputting 7, the window corresponding to the input signal of the switch button is opened or closed, and if necessary, by pressing the fifth switch button 18,
Window opening/closing operations are locked and unlocked.

Normally, in the internal switch unit 22 corresponding to these switch buttons 14 to 18, each contact pattern P
1, the movable contactor 24° 24 at the P2 position is set at the OFF position where it is not in contact with the ON contact piece 29, 29a, as shown by the solid line in FIG.

When the window is to be closed from this OFF state, by sliding the slider 25 on the first contact pattern P1 side via the switch button, the movable contact 24 sliding together with the slider 25 is moved as shown in FIG. As shown by the imaginary line, one ON
The movable contact piece 24 contacts both the contact piece 29 and the common contact piece 30, and the other movable contact piece 24 remains in the OFF position and is not slid.

As a result, the current flow is 29a → 29 → 24 → 30
→ M → 33 → 24 → 32, and this causes the motor M
is rotated in the forward direction to close the window.

Then, when the operating force on the switch button is released, the movable contactor 24 integrated with the slider 25 automatically returns to the original OFF position due to the biasing force of the slider return spring 26.

Furthermore, when opening the window, by sliding the slider 25 on the second contact pattern P2 side via the switch button, the movable contact 24 that slides together with the slider 25 is moved as shown by the imaginary line in FIG. Thus, the movable contact 24 contacts both the ON contact piece 29a and the common contact piece 33, and the other movable contact 24 remains in the OFF position and is not slid.

As a result, the current flow is 29a→24→33→M→
The flow goes from 30 to 24 to 31, thereby driving the motor M to rotate in the reverse direction and opening the window.

Then, by releasing the operating force on this switch button, the movable contact 24 integrated with the slider 25 returns to its original OFF position.

As mentioned above, during non-switching operation, the pair of left and right sliders corresponding to the two sets of contact patterns are biased to the OFF position, and from this state, one slider is moved via the slider operating rod. When you slide it to the anti-bias side,
When the contact is switched from the OFF position to the ON position on the positive side, and the other slider is slid to the non-biased side,
Similarly, it is switched from the OFF position to the contact corresponding state of the ON position on the opposite polarity side.

Therefore, during the switching operation, the switching operation can be performed by selecting the contact corresponding side of either the positive or reverse polarity ON position from the neutral OFF position, which is easy to operate.

In addition, in the above-mentioned example, a four-door type was shown in which switch buttons were arranged according to the number of doors, but the present invention is not limited to this.
It can also be applied to two-door vehicles by providing two switch buttons.

Regarding the correspondence between the structure of the present invention and the above-mentioned embodiment, the two-pole changeover switch of the present invention corresponds to the switch unit 22 of the embodiment, and similarly, the contact corresponds to the movable contact 24, 24. The contact patterns are a first contact pattern P1 and a second contact pattern P2.
However, the present invention is not limited to the above-mentioned embodiment.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is an exploded perspective view of a switch unit, FIG. 2 is an external perspective view of an on-vehicle switch, FIG. 3 is an enlarged vertical cross-sectional view of essential parts of an on-vehicle switch, and FIG. FIG. 4 is an enlarged sectional view of the switch unit, FIG. 5 is an explanatory diagram of the switch unit, and FIG. 6 is an explanatory diagram of a conventional two-pole changeover switch. 21...Slider operating rod 22...Switch unit 23...Switch case 24...Movable contactor 25
... Slider 26 ... Slider return spring 34
...Bulkhead M...Motor P1, P2.
・Contact pattern diagram 3

Claims (1)

[Scope of Claims] 1. A pair of left and right sliders are provided on two sets of contact patterns insert-molded in the switch case to operate the switch by sliding contacts thereon, respectively, and at positions intermediate between the two sets of contact patterns. A partition wall is provided, a slider is urged against the partition wall, and the urging positions of the sliders are set to the OFF position, and the position where the one slider is slid against the urging force is set on the contact pattern. Set the position corresponding to the ON contact on the positive pole side of the slider, and set the position where the other slider is slid against the biasing force to the position corresponding to the ON contact on the opposite pole side on the contact pattern, and the pair of left and right sliders A two-pole changeover switch with the gap set at the insertion position of the slider operating rod.