JPH08190838A - Switch device - Google Patents

Abstract

(57) [Abstract] [Purpose] In a switch device that opens and closes a contact by rotating an operation knob, the rotation support portion of the operation knob and the contact opening / closing structure are made of the same member, and the number of parts is reduced to reduce the cost. To improve stroke accuracy and facilitate thinning. [Structure] By fitting a hole portion 4c formed on the operation knob side 4 and a shaft portion 2b formed on a switch case 2 holding the operation knob 4, the operation knob 4 is rotatably supported and the shaft portion is supported. Conductive members capable of sliding on each other are partially provided on the outer peripheral surface of 2b and the inner peripheral surface of the hole 4c, and one conductive member serves as a fixed contact and the other conductive member serves as a movable contact. The contact state of the conductive member changes according to the rotating operation of the operation knob 4, and the contact opening / closing operation is performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch device applied to an on-vehicle power window switch or the like, and more particularly to a switch device for opening and closing contacts by utilizing a rotating operation of an operating knob.

[0002]

2. Description of the Related Art Conventionally, in a switch device used for a vehicle-mounted power window switch or the like, one having a structure in which a contact is opened and closed by a rotating operation of an operation knob supported in rotation is generally used. This operating knob is usually
The switch case is rotatably supported, and its rotation guide part (usually composed of a shaft and a bearing hole) and the contact drive mechanism that opens and closes in response to the rotation operation of the operation knob are independent of each other. Is configured. That is, FIG. 12 shows a cross-sectional structure of one conventional switch device, in which an operation knob 104 is rotatably supported by a rotary shaft 106 on an opening edge 102a on a switch case 102.
A module switch 108 attached to a circuit board or the like is disposed below the switch, and a switch driving piece 104a provided so as to hang down on the operation knob 104 is engaged with a contact operator 108a of the module switch 108. The rotational movement of the operation knob 104 is converted into a linear reciprocating movement due to the engagement configuration of the switch driving piece 104a and the contact actuator 108a.

[0003]

However, in the conventional switch device as described above, the rotating shaft 106 is used.
The parts and the mechanical parts such as the switch driving piece 104a for opening and closing the contacts of the module switch 108 require separate parts, the number of parts is increased, and the rotary motion of the operation knob 104 is converted into a linear motion to make contact. Since it is a mechanism that transmits to the actuator 108a, the precision of the stroke, which is the amount of movement of the operation knob 104 for opening and closing the contacts, tends to vary, and it is difficult to make the switch device thin because of these mechanisms. There was a problem. The present invention has been made to solve the above problem, and a conductive member serving as a switch contact is provided in a sliding portion that rotatably supports an operation knob, so that the rotation supporting portion and the contact opening / closing structure are the same member. It is an object of the present invention to provide a switch device which has a small number of parts, is inexpensive, has a high stroke accuracy, and is easily thinned.

[0004]

In order to achieve the above-mentioned object, the invention according to claim 1 is formed on a shaft portion formed on one side of the operation knob side and the operation knob holding portion side and on the other side. In the switch device in which the operating knob is rotatably supported with the shaft portion as the shaft center and the contacts are opened and closed in response to the operating knob, the outer peripheral surface of the shaft portion and the hole Conductive members that can slide with each other are partially provided on the inner peripheral surface of the part, one conductive member serves as a fixed contact, the other conductive member serves as a movable contact, and the shaft is rotated according to the rotating operation of the operating knob. The contact state of the conductive member between the portion side and the hole side changes, and the opening / closing operation of the contact is performed by this change. According to a second aspect of the invention, in the switch device according to the first aspect, the shaft portion is formed on the operation knob holding portion side and the hole portion is formed on the operation knob side. Also,
According to a third aspect of the invention, in the switch device according to the first or second aspect, the operation knob holding portion is attached to the circuit board, and the conductive member of the shaft portion or the hole portion is electrically connected to the circuit on the circuit board. The circuit board is built in the switch case and at least the operation portion of the operation knob is exposed to the outside of the switch case. According to a fourth aspect of the present invention, in the switch device according to the first or second aspect, the operation knob holding portion is provided in the switch case, and wiring is inked in the switch case, and at least the operation portion of the operation knob is provided outside the switch case. Exposed to. According to a fifth aspect of the invention, the switch device according to any one of the first to fourth aspects is installed in a vehicle, and a vehicle window is opened / closed by a contact opening / closing signal when an operation knob is operated. It is a vehicle power window switch device.

[0005]

In the switch device of the present invention having the above-mentioned structure, the operation knob has the shaft portion as an axis center by fitting the shaft portion formed in the operation knob and the operation knob holding portion with the hole portion. It is rotatably supported, and the conductive members that are partially provided on the outer peripheral surface of the shaft and the inner peripheral surface of the hole slide with respect to each other in response to the rotation operation of the operation knob, and the fixed contact and the movable contact. Then, the change of the contact state of the conductive member becomes the opening / closing operation of the contact. Further, in the switch device according to claim 3, the operation knob holding portion is attached to the circuit board, and the conductive member of the shaft portion or the hole portion is electrically connected to the circuit on the circuit board. Only on Further, in the switch device according to the fourth aspect, the operation knob is held by the holding portion provided in the switch case, and the lead wire from the conductive member provided in the holding portion is incast-molded in the housing case. Further, in the in-vehicle power window switch device according to claim 5, when the operation knob is rotated,
The vehicle window can be opened and closed with a uniform stroke.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external view of a switch device 1 as a vehicle-mounted power window switch device according to this embodiment. The device 1 includes a plurality of operation knobs 41, 42, 43, 44 (collectively referred to as an operation knob 4) which are provided on an armrest of a door of a vehicle and are rotationally operated on a switch case 2 which houses a switch.
The other operation knobs are exposed and the lower surface side is provided with a connector 3 for connecting to a power circuit, a motor for driving the windows to open and close, and the like.

FIG. 2 is a partial sectional view of the switch device 1, FIG.
Is a perspective view of the operation knob holding portion of the switch case 2, FIG. 4 is a partially enlarged view thereof, FIG. 5 is a perspective view of the operation knob 4 seen from below, and FIG. 6 is a partially enlarged view thereof. A shaft portion 2b that rotates and holds the operation knob 4 is formed on the inner facing surface of the opening edge 2a of the switch case 2 that is held so as to cover the operation knob 4, and the operation knob 4 has a hollow inner surface. A hollow quadrangular prismatic member 4b is press-fitted into the formed protruding edge 4a, and the quadrangular prismatic member 4b is provided with a hole 4c to be fitted into the shaft 2b. By fitting the hole 4c into the shaft 2b, the operation knob 4 is rotatably supported around the shaft 2b. The operation knob 4
Also, the switch case 2 is made of a flexible plastic material or the like, and can be performed by bending them.

Further, the outer peripheral surface of the shaft portion 2b and the hole portion 4
Each of the inner peripheral surfaces of c has a conductive member 5 that can slide on each other.
a, 5b, 5c and the conductive member 6 are partially provided, and one conductive member 5a, 5b, 5c is a fixed contact,
The other conductive member 6 serves as a movable contact, and the contact state of the conductive members 5 and 6 changes according to the rotating operation of the operation knob 4, so that the contact is opened and closed. The conductive member 5a is a common terminal to which the conductive member 6 serving as a movable contact is always in contact, and the conductive member 5b is the operation member 4.
Is a down terminal that emits a signal to lower the window when the conductive member 6 comes into contact with the conductive member 5c.
Is an up terminal that outputs a signal for raising the window by contact with the conductive member 6 when the operation member 4 is rotated upward.
Further, on the inner facing surface of the opening edge 2a, the conductive member 5a,
Wiring 7 is provided for electrically connecting 5b and 5c to a circuit or connector on the circuit board. Conductive member 5
The a, 5b and 5c, the conductive member 6 and the wiring 7 may be provided by insert molding in the shaft portion 2b of the switch case 2, the hole portion 4c of the square columnar member 4b on the operation knob 4 side and the switch case 2, respectively.

FIG. 7 shows the states of the electric circuit and the contacts when the operation knob 4 is rotated in the switch device 1. (a) is the knob neutral state, (b) is the up state, and (c) is the down state. It is in. That is, the operation knob 4 is in the neutral state at all times when the operation knob 4 is not operated, and the conductive member 6 as the movable contact is in contact with only the common terminal. When the operating knob 4 is rotated upward from this state, the conductive member 6 short-circuits the common terminal and the up terminal. When the operation knob 4 is rotated downward, the conductive member 6 short-circuits the common terminal and the down terminal. In this way, the switch is opened and closed.

FIG. 8 shows a state of an electric circuit and a contact of a switch device 1 in a modified embodiment in which a conductive member is further added to a shaft portion in order to have an automatic function of opening and closing a window,
(A) is the knob neutral, (b) is the manual up,
(C) is in the auto up state. Although not shown, the manual and automatic downs are entered when the operation knob 4 is turned in the opposite direction. The manual operation is entered when the rotational operation of the operation knob 4 is small, and the operation is stopped when the rotational operation is stopped. The automatic operation is entered when the rotational operation of the operation knob 4 becomes a predetermined angle or more, Even if the rotation operation is stopped, the operation is continued until the window is completely opened or closed.

FIG. 9 shows a switch device 1 according to another embodiment.
FIG. In this example, a holding portion 1 for holding an operation knob 4 whose operation portion is exposed outside the switch case 2 is provided on a circuit board 11 built in the switch case 2.
2 is attached, a shaft portion 13 is provided on the holding portion 12, and a hole portion 4d to be fitted into the shaft portion 13 is formed on the operation knob 4. The outer peripheral surface of the shaft portion 13 and the hole portion 4d are formed. Part of the inner peripheral surface of the conductive member is a conductive member that slides on each other and serves as a contact. This conductive member may have the same configuration as that of the above embodiment. The conductive member is electrically connected to the circuit on the circuit board 11. The holding portion 12 for holding the operation knob 4 may be the switch component itself mounted on the circuit board 11.

FIG. 10 is a sectional view of a switch device 1 according to still another embodiment, and FIG. 11 is a sectional view of the switch device 1 on the switch case 2 side. In this example, a conductive member serving as a contact is formed at a sliding portion between the operation knob 4 and the switch case 2 that holds the operation knob 4 in rotation. That is, the shaft portion 2b formed in the opening edge 2a of the switch case 2 is rotatably held by fitting the shaft hole portion 4e formed in the quadrangular prismatic member 4b of the operation knob 4 into the shaft portion 2b. Conductive members 15a, 15b, 15c are provided in a partially arcuate shape around the shaft portion 2b on the inner surfaces facing each other, and a conductive member 16 is partially provided on the quadrangular prismatic member 4b of the operation knob 4. These conductive members 15
The a, 15b, 15c and the conductive member 16 are slidably arranged. The conductive members 15a, 15b, 15c are connected to the circuit board or the like by the wiring 7. Conductive members 15a, 15b, 15c, conductive member 16 and wiring 7
May be formed by insert molding or the like.

Also in the above-mentioned structure, when the operation knob 4 is rotated, the conductive member 16 is rotationally moved to serve as a movable terminal and serve as a fixed contact.
The contact state with 5b and 15c changes, and the switch is opened and closed. In the figure, the conductive members 15a, 15
Although b, 15c and the conductive member 16 are formed on both surfaces facing each other, they may be formed on only one surface, and the shaft portion 2b and the shaft hole portion 4e may be provided with a conductive member as described above. If provided and used in combination with the above, various switch contact configurations can be realized.

According to each of the above-mentioned embodiments, the shaft holding portion of the operation knob 4 and the mechanism portion for opening and closing the contacts can be constituted by the same member instead of separate members, so the number of parts can be reduced. Further, since the mechanism for converting the rotational movement into the linear reciprocating movement is not used, the stroke accuracy of the operation switch is improved, and further, the switch can be thinned.

The present invention is not limited to the above embodiment, but various modifications can be made. For example, in the above embodiment, the shaft portion 2b is formed on the side holding the operation knob 4, and the hole portion 4 is formed on the operation knob 4 side.
Although c or the shaft hole portion 4e is shown, the hole portion or the shaft hole portion may be formed on the side holding the operation knob 4 and the shaft portion may be formed on the operation knob 4 side. In addition, the hole described in the claims also includes the shaft hole.

[0016]

As described above, according to the switch device of the first or second aspect of the present invention, the switch case, the rotation support shaft portion and the hole portion of the operation knob are made of a conductive member, and the respective conductive members are provided. Since the member is used as the fixed contact and the movable contact, the rotary shaft support of the operation knob and the function of opening and closing the contact can be established with the same member, the number of parts and the assembly man-hour can be reduced, and the cost can be reduced. Also, the stroke accuracy of the switch is increased, and the switch can be made thinner. According to the switch device of the third aspect of the invention, in addition to the effect of the first or second aspect of the invention, the operation knob holding portion is attached to the circuit board, and the shaft portion or the hole conductive portion is attached to the circuit on the circuit board. Since the flexible member is connected, the wiring becomes simple. Further, according to the switch device of the invention of claim 4, in addition to the effect of claim 1 or 2, the operation knob holding portion is provided in the switch case, and the wiring is incate-molded in the switch case. And again,
Simply by incorporating the operation knob into the switch case, the rotation support and contact structure of the operation knob are established. Further, according to the vehicle-mounted power window switch device of the invention of claim 5, the opening / closing operation of the vehicle window when the operation knob is rotationally operated can be performed with a uniform stroke, and it is possible to reduce the thickness and save the space. It corresponds to.

[Brief description of drawings]

FIG. 1 is an external view of a vehicle-mounted power window switch device according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of a switch device.

FIG. 3 is a perspective view of an operation knob holding portion of the switch case.

FIG. 4 is a partially enlarged view of FIG.

FIG. 5 is a perspective view of an operation knob seen from below.

6 is a partially enlarged view of FIG.

FIG. 7 is a diagram showing a state of electric circuits and contacts when the operation knob is rotated in the switch device.

FIG. 8 is a diagram showing a state of electric circuits and contacts of a switch device according to a modified example.

FIG. 9 is an exploded perspective view of a switch device according to another embodiment.

FIG. 10 is a cross-sectional view of a switch device according to still another embodiment.

FIG. 11 is a cross-sectional view of the switch device on the switch case side.

FIG. 12 is a cross-sectional view of a conventional switch device.

[Explanation of symbols]

 1 Switch device 2 Switch case 2b Shaft part 4,41,42,43,44 Operation knob 4c, 4d Hole part 4e Shaft hole part 5a, 5b, 5c Conductive member 6 Conductive member 7 Wiring 11 Circuit board 12 Holding part 13 Shaft

[Procedure amendment]

[Submission date] May 15, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 2

[Correction method] Change

[Correction content]

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 4

[Correction method] Change

[Correction content]

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004]

In order to achieve the above-mentioned object, the invention according to claim 1 is formed on a shaft portion formed on one side of the operation knob side and the operation knob holding portion side and on the other side. was by mated and holes, the operation knob is rotatably supported the shaft portion as the axis, the switch device contact is opened and closed in response to the operation knob, the operation
Conductive members that can slide with each other are partially provided on the sliding facing surfaces of the knob and the operation knob holding portion, one conductive member serves as a fixed contact, and the other conductive member serves as a movable contact.
The contact state of the conductive member provided on the sliding facing surface changes in accordance with the rotation operation of the operation knob, and the opening / closing operation of the contact is performed by this change. Further, the invention of claim 2 is such that in the switch device according to claim 1, they slide with respect to each other.
Conductive members that can be attached to the outer peripheral surface of the shaft and the inner peripheral surface of the hole
Each is provided . The invention according to claim 3 is the switch device according to claim 1 or 2, wherein the operation knob holding portion is attached to the circuit board, and the conductive member of the shaft portion or the hole portion is electrically connected to the circuit on the circuit board. connection,
The circuit board is built in the switch case and at least the operation portion of the operation knob is exposed to the outside of the switch case. The invention of claim 4 is the same as claim 1 or 2.
In the switch device according, the operation knob holding portion is provided in the switch case, the wiring to the switch case and in support over <br/> shot molding, in which at least the operation portion of the operation knob is exposed to the outside of the switch case . According to a fifth aspect of the invention, the switch device according to any one of the first to fourth aspects is installed in a vehicle, and a vehicle window is opened / closed by a contact opening / closing signal when an operation knob is operated. It is a vehicle power window switch device.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

[0005]

[Action] In the switch device according to claim 1 having the above configuration, by fitting the shaft portion and the hole formed in the operating knob and the operating knob holder, rotatably operating knob shaft portion as the axis The conductive members that are partially provided on the sliding facing surfaces of the operating knob and the operating knob holder slide on each other in response to the rotating operation of the operating knob to become fixed contacts and movable contacts. The change in the contact state of the conductive member is the opening / closing operation of the contact. Also, in the switch device according to claim 2,
, The conductive members that can slide on each other
And the inner surface of the hole,
The rotary support shaft of the hub itself serves as a contact opening / closing mechanism. Further, in the switch device according to claim 3, the operation knob holding portion is attached to the circuit board, and the conductive member of the shaft portion or the hole portion is electrically connected to the circuit on the circuit board. Only on Further, in the switch device according to claim 4, the operation knob is held in the holding section provided in the switch case, it is in support Creating molded conductor housing case from the conductive member provided in the holding portion . Further, in the in-vehicle power window switch device according to the fifth aspect, when the operation knob is rotated, the vehicle window can be opened and closed with a highly accurate stroke.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external view of a switch device 1 as a vehicle-mounted power window switch device according to this embodiment. The device 1 includes a plurality of operation knobs 41, 42, 43, 44 (collectively referred to as an operation knob 4) which are provided on an armrest of a door of a vehicle and are rotationally operated on a switch case 2 which houses a switch.
The other operation knobs are exposed, and the lower surface side is provided with a connector 3 for connecting to a power circuit, a motor for opening and closing the window, and the like.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

[0016]

As described above, according to the switch device of the first aspect of the present invention, the operation knob and the operation knob holding portion slide on each other.
Since the conductive members that can slide with each other are provided on the opposing surfaces and the respective conductive members are used as the fixed contact and the movable contact , separate parts are formed to form the contact opening / closing mechanism.
Since no material is required, the number of parts and the number of assembling steps can be reduced, the cost is low, the stroke accuracy of the switch is high, and the switch can be thin. According to the switch device of the invention of claim 2,
The operating knob and the operating knob holder, respectively.
The outer peripheral surface of the shaft and the inner peripheral surface of the hole can partially slide on each other.
Conductive members are provided, and each conductive member is fixed contact
Since it is used as a movable contact with
The function of supporting the rotary shaft of the operating knob and opening / closing the contact is realized by the material.
The effect obtained in claim 1 can be further enhanced.
It becomes remarkable. According to the switch device of the third aspect of the invention, in addition to the effect of the first or second aspect of the invention, the operation knob holding portion is attached to the circuit board, and the shaft portion or the hole conductive portion is attached to the circuit on the circuit board. Since the flexible member is connected, the wiring becomes simple. Further, according to the switch device according to the invention of claim 4, in addition to the aforementioned advantage of claim 1 or 2, provided the operating knob holder in the switch case, since the wiring to the switch case and in support Creating molding, Wiring is easy,
Simply by incorporating the operation knob into the switch case, the rotation support and contact structure of the operation knob are established. Further, according to the vehicle-mounted power window switch device of the invention of claim 5, the opening / closing operation of the vehicle window when the operation knob is rotationally operated is highly accurate.
It can be done with a small stroke, and it can be made thin to meet the demand for space saving.

[Procedure Amendment 8]

[Document name to be corrected] Drawing

[Correction target item name] Figure 8

[Correction method] Change

[Correction content]

[Figure 8]

Claims (5)

[Claims] 1. An operating knob side and an operating knob holding portion side are fitted with a shaft portion formed on one side and a hole portion formed on the other side so that the operating knob can move the shaft portion. A switch device, which is rotatably supported as an axis and whose contacts are opened and closed in response to the operation knob, is a conductive member capable of sliding on the outer peripheral surface of the shaft portion and the inner peripheral surface of the hole portion. Is partially provided, one conductive member serves as a fixed contact, the other conductive member serves as a movable contact, and the conductive member of the shaft portion side and the hole portion side of the conductive member in accordance with the rotating operation of the operation knob. A switch device characterized in that a contact state changes, and the contact is opened / closed by the change. 2. A shaft portion is formed on the operation knob holding portion side,
The switch device according to claim 1, wherein a hole is formed on the operation knob side. 3. The operation knob holder is attached to a circuit board, the conductive member of the shaft portion or the hole is electrically connected to a circuit on the circuit board, and the circuit board is built in a switch case. At the same time, at least an operation portion of the operation knob is exposed to the outside of the switch case, and the switch device according to claim 1 or 2. 4. The operation knob holding portion is provided in a switch case, and wiring is incast-molded in the switch case,
The switch device according to claim 1 or 2, wherein at least an operation portion of the operation knob is exposed to the outside of the switch case. 5. A switch device according to any one of claims 1 to 4 is provided in a vehicle, and a vehicle window is opened / closed by a contact opening / closing signal when the operation knob is operated. In-vehicle power window switch device.