JP3764831B2 - Switch device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a switch device that includes a switch element that is interposed in an energization path of a switch for load control so as to open and close the energization path.
[0002]
[Problems to be solved by the invention]
For example, in a car having a so-called power window function in which a window glass is moved up and down using a motor, an operation device for a power window is provided on a door on the driver's seat side. The operation device corresponds to the windows on the driver's seat side (front right), passenger seat side (front left), rear seat right side (rear right), and rear seat left side (rear left). There are four window switch devices and a window lock switch device.
[0003]
FIG. 6 shows an example of a conventional configuration of the windlock switch device 1. The window lock switch device 1 has the following configuration.
That is, a pair of fixed contacts 3 (only one is shown in the figure) is provided on an insulator 2 which is an insulating substrate, and this insulator 2 is covered from above by a switch body 4. A housing portion 2 a is formed on the top of the insulator 2, and a contact holder 6 that holds the movable contact 5 is disposed in the housing portion 2 a. The contact holder 6 is slidable on the insulator 2 in the left-right direction in the drawing within the housing portion 2a.
[0004]
A knob support portion 4a is formed at the upper portion of the switch body 4, and an opening portion 4b is formed. The convex portion 7a of the knob 7 is inserted into the opening portion 4b. The knob 7 is swingably supported by the switch body 4 via a shaft portion 8 provided in the knob support portion 4 a, and the lower end portion of the convex portion 7 a is inserted into the insertion concave portion 6 a of the contact holder 6. . The movable contact 5 is biased toward the insulator 2 by a compression coil spring 9. Here, the pair of fixed contacts 3 and the movable contact 5 constitute a window lock switch 10 which is a switch element.
[0005]
In the state shown in FIG. 6, the contact holder 6 is located at the unlock position on the right side in the figure. In this state, the movable contact 5 contacts the pair of fixed contacts 3, and the window lock switch 10 is closed. It is in a state (on state). When the knob 7 is turned from the state shown in FIG. 6 in the direction of arrow A in the drawing, the contact holder 6 moves in the direction B in the drawing together with the movable contact 5 via the convex portion 7a to reach the locked position. In this state, the movable contact 5 is separated from the pair of fixed contacts 3, and the window lock switch 10 is in an open state (off state).
[0006]
In this case, the pair of fixed contacts 3 of the window lock switch 10 includes a window switch device for the driver's seat and three other windows switches (for the passenger seat, for the right side of the rear seat, and for the left side of the rear seat). When the wind lock switch 10 is in the closed state (on state), the wind lock switch 10 is in the unlocked state and the wind lock switch 10 is in the open state (off state). In some cases, it is locked. In the state in which the window lock switch 10 is in the open state (locked state), the window on the driver side can be operated by the window switch device for the driver's seat, but the other three (passenger seat, rear seat) Even if the window switch device for the right side and the left side of the rear seat is operated, the windows on the passenger seat side, the right side of the rear seat, and the left side of the rear seat cannot be operated.
[0007]
Incidentally, there is a demand for such a power window operating device in which the window lock switch 10 is not provided in the operating device. In order to cope with this, the portion related to the windlock switch device 1 may be deleted.
[0008]
However, in this case, when the knob 7 is simply removed, the opening 4a of the switch body 4 remains open, and the shape of the switch body 4 needs to be changed to close the opening 4a. Further, if the window lock switch 10 is left open (off state), the other three window switch devices other than the driver seat window switch device are locked. It is necessary to be in a closed state (on state). In this case, it may be possible to eliminate the fixed contact 3 of the windlock switch 10, but to do so, the configuration of the insulator 1 needs to be changed.
[0009]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a switch device that can keep a switch element normally closed without changing the shape of the switch body.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the invention of claim 1 is a switch body having an opening and a switch element provided to open and close the energization path interposed in the energization path of a switch for load control. And a closing member provided in the switch body so as to fix the switch element in a normally closed state and having a closing portion for closing the opening.
[0011]
According to this, the opening part of the switch body is closed by the closing part of the closing member, and the switch element provided in the energization path is always fixed in the closed state by the closing member. Therefore, the switch element can be always closed without changing the shape of the switch body.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
First, FIG. 3 and FIG. 4 show the appearance of a power window operating device 20 provided on a door (not shown) on the driver's seat side of an automobile, and FIG. A related electrical schematic is shown.
[0013]
The operation device 20 corresponds to the windows on the driver's seat side (front right), passenger seat side (front left), rear seat right side (rear right), and rear seat left side (rear left). The window switch devices 21, 22, 23, and 24 are provided, and the always-on switch device 25 of the present invention is provided. The four window switch devices 21 to 24 have a well-known configuration, and the knobs 21a to 24a can swing in the direction of arrow C1 in FIG. 4 and the direction of arrow C2 opposite thereto.
[0014]
Among the four window switch devices 21 to 24, as shown in FIG. 5, the window switch device 20 for the driver's seat includes an up manual switch 26a, an up auto switch 26b, a down manual switch 26c, and a down manual switch 26c. An auto switch 26d is provided, and a common contact c of these switches 26a to 26d is connected to a ground connection line 27 connected to a ground terminal 27a, an up manual contact 28a, an up auto contact 28b, a down The manual contact 28c and the down auto contact 28d are connected to an auto circuit (AUTO circuit) 29, respectively. The input side of the auto circuit 29 is connected to the ground connection line 27 and the battery connection line 30 connected to the battery connection terminal 30a connected to the positive terminal of the battery via the ignition switch. The output side of the auto circuit 29 is connected to a motor 33 capable of rotating in the forward and reverse directions for raising and lowering the window on the driver's seat side through an up relay 31 and a down relay 32.
[0015]
Here, when the up manual switch 26a is turned on by the operation of the knob 21a in the direction of the arrow C1, the window is raised only while the switch 26a is on, and the up auto switch 26b is once turned on. In this case, even if the switch 26b is turned off, the window is raised to the upper end by maintaining the relay switch 31a of the up relay 31 in the state of the two-dot chain line. Further, when the down manual switch 26c is turned on by the operation of the knob 21a in the direction of the arrow C2, the window is down only while the switch 26c is on, and the down auto switch 26d is once turned on. In this case, even if the switch 26d is turned off, the window is lowered to the lower end by maintaining the relay switch 32a of the down relay 32 in the state of the two-dot chain line.
[0016]
The passenger seat window switch device 22 is provided with an up switch 34a and a down switch 34b. The normally closed contacts a of both the switches 34 a and 34 b are connected to the ground connection line 27, and the normally open contacts b are connected to the battery connection line 30. The common connection point c of the up switch 34a and the common connection point c of the down switch 34b are connected to a motor 35 that can rotate forward and backward to raise and lower the passenger side window.
[0017]
Similarly to the passenger seat window switch device 22, the rear seat right window switch device 23 is provided with an up switch 36a and a down switch 36b. The normally closed contacts a of both the switches 36 a and 36 b are connected to the ground connection line 27, and the normally open contacts b are connected to the battery connection line 30. The common connection point c of the up switch 36a and the common connection point c of the down switch 36b are connected to a motor 37 that can rotate forward and backward to raise and lower the window on the right side of the rear seat.
[0018]
Further, the window switch device 24 for the rear seat left side is provided with an up switch 38a and a down switch 38b, similarly to the window switch device 23 for the rear seat right side. The normally closed contacts a of both the switches 38 a and 38 b are connected to the ground connection line 27, and the normally open contacts b are connected to the battery connection line 30. The common connection point c of the up switch 38a and the common connection point c of the down switch 38b are connected to a motor 39 that can rotate forward and backward to raise and lower the window on the right side of the rear seat.
[0019]
In this case, each of these three window switch devices 22, 23, and 24 is operated when the up switches 34a, 36a, and 38a are turned on by operating the knobs 22a, 23a, and 24a in the direction of the arrow C1. When the switch 34a, 36a, 38a is turned on, the window is raised, and when the down switches 34b, 36b, 38b are turned on by the operation of the knobs 22a, 23a, 24a in the direction of arrow C2. The window is down only while the switches 34b, 36b, 38b are on.
[0020]
Next, the switch device 25 will be described with reference to FIGS. The switch body 4 of the switch device 25 has the same configuration as the switch body 4 (see FIG. 6) of the window lock switch device 1 of the conventional example, and is provided so as to cover the insulator 2. At the top of the switch body 4, a knob support 4a is formed, and an opening 4b is formed. A shaft portion 8 is formed on the outer surface side of the knob support portion 4a. The insulator 2 has the same configuration as that of the conventional insulator 2 (see FIG. 6). A pair of fixed contacts 3 and 3 (see FIG. 2) are provided on the upper surface, and an accommodating portion 2a is formed on the upper portion. ing.
[0021]
And the closure member 40 holding the movable contact 5 is arrange | positioned in the accommodating part 2a in the state which cannot move. The closing member 40 is integrally formed with a closing portion 40a that closes the opening 4b. The movable contact 5 held by the closing member 40 has the same configuration as that of the movable contact 5 of the conventional example. The movable contact 5 is urged toward the insulator 2 by the compression coil spring 9 and is It is in contact with the pair of fixed contacts 3 and 3. Here, the switch element 41 is constituted by the pair of fixed contacts 3 and 3 and the movable contact 5, and the switch element 41 is fixed in a normally closed state by the closing member 40.
[0022]
As shown in FIG. 5, the switch element 41 is interposed between the window switch device 21 for the driver's seat and the other window switch devices 22 to 24 in the ground connection line 27, and is a motor 35 that is a load. , 37, 39 are provided in the energization paths of the window switch devices 22, 23, 24, which are control switches, and the energization paths (earth connection lines 27) are always closed.
[0023]
In addition, as shown in FIG. 5, the window lock switch apparatus 42 is provided in the exterior of the said operating device 20, and hence the insulator 2 outside. The window lock switch 43 of the window lock switch device 42 is provided in a ground connection line 44 connected to the ground terminal 27a. Therefore, in this case, when the window lock switch 43 is on, the four window switch devices 21 to 24 are activated (unlocked), and when the window lock switch 43 is off, All the four window switch devices 21 to 24 are disabled (locked state).
[0024]
According to the above-described embodiment, the closing member 40 is used in place of the closing member 6 and the knob 7 in the conventional window lock switch device 1, and the movable contact 5 and the compression coil spring 9 are assembled to the closing member 40. By accommodating the member 40 in the accommodating portion 2a in the switch body 4 so as not to move, the opening 4b of the switch body 4 is closed by the closing portion 40a of the closing member 40, and the movable contact 5 and the pair of fixed members are fixed. The switch element 41 composed of the contacts 3 and 3 is fixed so as to be normally closed. Therefore, in the operation device 20 for the power window, when the conventional window lock switch device 1 is not provided, it is possible to change the shape of the switch body 4 and the configuration of the insulator 2 only by changing the closing member 40. can do.
[0025]
The present invention is not limited to the embodiments described above, and can be modified or expanded as follows.
The object of the switch device is not limited to the above-described power lock switch device for a power window, and can be applied to a switch device having the same circumstances as this wind lock switch device.
The switch element 41 is not limited to a slide type switch, but may be an opposed type or may be a unitized in advance.
[0026]
【The invention's effect】
As is clear from the above description, according to the present invention, the opening of the switch body is closed by the closing portion of the closing member, and the switch element provided in the energizing path is normally closed by the closing member. Therefore, the switch element can be always closed without changing the shape of the switch body.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an essential part showing an embodiment of the present invention. FIG. 2 is a sectional view taken along line II-II in FIG. 1. FIG. 3 is a plan view of a power window operating device. ] Side view [Fig. 5] Electrical circuit diagram [Fig. 6] Diagram equivalent to Fig. 1 showing the conventional configuration [Explanation of symbols]
2 is an insulator, 2a is an accommodating portion, 3 is a fixed contact, 4 is a switch body, 4b is an opening, 5 is a movable contact, 20 is an operating device, 21 is a window switch device, 22 to 24 window switch device (for load control) , 25 is a switch device, 27 is a ground connection line (conduction path), 30 is a battery connection line, 33, 35, 37, and 39 are motors (loads), 40 is a closing member, 40a is a closing portion, and 41 is Indicates a switch element.

Claims (1)

A switch body having an opening;
A switch element provided to open and close the energization path interposed in the energization path of the switch for load control;
A switch device comprising a closing member provided in the switch body so as to fix the switch element in a normally closed state and having a closing portion for closing the opening.

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