JPH0635320Y2 - Switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a switch device having an improved structure of a changeover switch section.

(Prior Art) For example, as a conventional example of a micro switch which is a switch device used for a window regulator of an automobile,
There is one shown in FIGS.

That is, 1 is a movable contact plate made of a rectangular leaf spring, and a substantially rectangular through hole 3 is formed in the movable contact plate, leaving a spring portion 2 that curves downward. In this movable contact plate 1, a movable contact portion 4 is attached to a free end portion, a notch-shaped fulcrum portion 5 is formed at a base end portion, and a notched fulcrum point is also provided at a tip end portion of a spring portion 2. The part 6 is formed. Reference numeral 7 denotes a synthetic resin base to which a normally closed side fixed contact terminal 8, a normally open side fixed contact terminal 9 and a movable contact terminal 10 are attached by insert molding. In this case, the base end portion 8a of the fixed contact terminal 8 is bent rightward at the upper side, and the fixed contact portion 11 on the normally closed side is attached to the lower surface portion thereof. The base end portion 9a of the fixed contact terminal 9 is bent leftward in the vicinity of the upper surface portion of the base 7, and the fixed contact portion 12 on the normally open side is provided on the upper surface portion so as to face the fixed contact portion 11. Installed. A base end portion 10a of the movable contact terminal 10 projects upward from the base 7, where a first support portion 13 and a second support portion 14 are formed on the left and right with a predetermined space. Then, the fulcrum portion 5 of the movable contact plate 1 is engaged with and supported by the first support portion 13,
The fulcrum portion 6 of the spring portion 2 is engaged with and supported by the second support portion 14. Reference numeral 15 is a case connected to the base 7, and an operator 16 is provided on the case 7 so as to be vertically movable corresponding to the base end of the movable contact plate 1.

Thus, in the state shown in FIG. 23, the free end portion of the movable contact plate 1 is given a displacement force in an obliquely upward direction by the spring force of the spring portion 2, and the movable contact point is caused by the upward component force. The portion 4 is in contact with the fixed contact portion 11 on the normally closed side. In the state shown in FIG. 23, the base end portion of the movable contact plate 1 is pressed downward by the operating element 16, and the movable contact plate 1 is moved as shown in FIG.
When the arms 17, 17 of the movable contact plate 1 are positioned below the fulcrum 6 of the spring 2, the movable end of the movable contact plate 1 is given a displacement force in an oblique downward direction by the spring force of the spring 2. As a result, the free end portion of the movable contact plate 1 is rapidly moved downward by the component force to move the movable contact portion 4 away from the normally closed fixed contact portion 11 and the normally open fixed contact. Contact the part 12. The motor of the window regulator is energized by the contact of the movable contact portion 4 with the fixed contact portion 12 on the normally open side, whereby the window is raised or lowered.

(Problems to be Solved by the Invention) According to the conventional configuration, there are the following problems. First,
Since the case 15 is configured to cover the entire change-over switch portion including the base end portions 8a to 10a of the terminals 8 to 10, the support portions 13 and 14, the movable contact plate 1 and the like, it is made large in size in the height direction as a whole. Second, since the base end portion 8a of the fixed contact terminal 8 on the normally closed side is bent and the fixed contact portion 11 is attached thereto, the movable contact plate 1 cannot be simply assembled from above. However, automatic assembly is difficult and therefore assembly is poor. Thirdly, as described above, since the base end portion 8a of the fixed contact terminal 8 on the normally closed side is bent, the facing distance between the fixed contact portions 11 and 12 also varies due to variations in the bending accuracy. Is likely to occur, and therefore the fixed contact terminal 8
Considering the spring back due to the bending of the base end portion 8a, the contact pressure of the movable contact portion 4 with respect to the fixed contact portions 11 and 12 varies, and the quality is not stable.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a switch device which can be downsized, which can be easily assembled automatically, has excellent assemblability, and can stabilize quality. .

[Structure of the Invention] (Means for Solving the Problems) A switch device of the present invention is provided with a base in which a fixed contact terminal on the normally open side and a movable contact terminal are insert-molded, and a base of the fixed contact terminal. A fixed contact portion on the normally open side is attached to the end portion, a movable contact plate made of a leaf spring is engaged with the base end portion of the movable contact terminal, and the movable contact plate faces the fixed contact portion. A fixed contact terminal on the normally closed side is provided by insert molding, and the base end of the fixed contact terminal on the normally closed side is provided on the normally closed side in contact with the movable contact part. A fixed contact portion is attached, and an operator for pressing the movable contact plate to separate the movable contact portion from the normally closed fixed contact portion and to contact the normally open fixed contact portion is provided. Characterized in movably provided configuration to scan.

(Operation) According to the switch device of the present invention, the movable contact plate is engaged with the base end portion of the movable contact terminal insert-molded in the base, and the operating element is attached to the case, and then the base and the case are separated from each other. When combined, the normally open side fixed contact part and the normally closed side fixed contact part face each other, the movable contact part comes into contact with the normally closed side fixed contact part, and further, the operating element becomes the movable contact plate. It will be the corresponding state.

(Embodiment) An embodiment in which the present invention is applied to a switch device of a window regulator of an automobile will be described below with reference to FIGS. 1 to 21.

The switch device of the window regulator according to the present embodiment includes two sets of a sub switch device 21 for operating on the window side and a main switch device 22 for operating on the driver's seat side.

First, the overall configuration of the sub-switch device 21 will be described with reference to FIGS. 1 to 13. Reference numeral 23 is a base made of an insulating material having a substantially rectangular shape, and a case 24 made of an insulating material having a rectangular container shape having an open bottom is fitted and attached to an upper end portion thereof. The base 23 has an elongated recess on its upper surface.
25a and 25b are alternately formed so as to be recessed, and fixed contact conductors 26a and 26b and movable contact conductors 27a and 27b are integrally provided as described below (see FIG. 9). That is, in FIG. 12, 28 is a conductor plate integrally formed by press punching of a plate material, which is a connecting conductor 29 between the conductors 26a and 27b and between the conductors 26b and 27a. And 30 and the conductors 26a and 26b are connected by the connection conductor 31. The conductor plate 28 includes a main terminal 32a, which is a normally open side fixed contact terminal projecting outwardly of the conductors 26a, 27a and 27b, and a main terminal 33a, which is a movable contact terminal.
And 33b are bent downward, and the base end portions 34a and 34b projecting inward of the conductors 27a and 27b are bent upward, and the connecting conductor 29
And 30 are bent in a concave shape, and when viewed from the upper surface, they are press-folded into a predetermined shape as shown in FIG. 13, and thereafter,
The base 23 is integrally formed by so-called insert molding using an insulating material. Then, after this insert molding, the connecting conductors 29 and 30 are cut by press cutting, and only the auxiliary terminal 35a of the fixed contact conductor 26a has a shape as shown in FIG. It is a thing. 36a and 36b are the recesses
The fixed contact portions on the normally open side are cylindrical and fixed to the fixed contact conductors 26a and 26b, which are the base end portions of the main terminals 32a exposed at 25a and 25b. Next, in the case 24, 37a and 37b are rectangular cylindrical portions projecting upward at positions facing the base end portions 34a and 34b of the movable contact conductors 27a and 27b, respectively (see FIG. 1). And Fig. 4), 38a
Reference numerals 38 and 38b denote operators inserted in the cylindrical portions 37a and 37b so as to be vertically movable, and the upper portions thereof are located so as to project above the case 24. Case 24 for 39a and 39b
Is a knob support portion that is erected from the center of the side of the upper end of the (see FIG. 7). A knob (not shown) is rotatably supported by the knob support portions 39a, 39b, and the operator 38a or 38b is pushed down by the turning operation of the knob. In FIG. 8, reference numerals 40a and 40b denote fixed contact conductors provided at respective positions facing the fixed contact conductors 26a and 26b, and these are integrally arranged in the case 24 by insert molding in the same manner as described above. It is a thing. That is, in FIG. 10, 41 is a conductor plate integrally formed by press punching of a plate material, which is the conductor 40a.
Main terminals 42a and 42b, which are fixed contact terminals on the normally closed side, and claws 40aa and 40ba on both sides, respectively.
Connected to the auxiliary conductors 43a and 43b, the locking claws 44a and 44b,
The conductors 40a and 43b and the conductors 40b and 43a have a shape in which the conductors 40a and 43a are connected to each other by connecting conductors 45 and 46 in a lateral portion. Then, the conductor plate 41 is press-folded into a predetermined shape as shown in FIG. 11 by bending the main terminals 42a and 42b and the locking claw portions 44a and 44b downward, and thereafter,
The case 24 is formed by insert molding with an insulating material. After the insert molding, the connecting conductors 45 and 46 are cut by press cutting, and the fixed contact conductor 40a and the auxiliary terminals 47a and 48b of the auxiliary conductor 43b have a shape protruding laterally of the case 24.
Seen from below, 24 is as shown in FIG. 49
Reference characters a and 49b are columnar fixed contact parts on the normally closed side that are fixed to the central portions of the fixed contact conductors 40a and 40b, which are the base end parts of the main terminals 42a and 42b. And this case 24
In a state in which the main terminals 42a and 42b are fitted to the upper end portion of the base 23, the main terminals 42a and 42b abut on the recesses 23aa and 23ba formed on the side portions of the base 23, and the claw portions formed on both side portions of the respective main terminals 42a and 42b. 42aa, 42ba are bent along the bottom surface of the base 23,
Similarly, the locking claws 44a and 4b abut on the recesses 23ab and 23bb formed on the side of the base 23, and the lower end of each of them engages the base.
23 Bent along the bottom surface, so that the case 24 and the base 23
And are combined.

Now, 50a is a movable contact plate, which is composed of first and second movable members 51 and 52 made of a leaf spring which are vertically connected to each other at their free end portions 53 (53a, 53a). A cylindrical movable contact portion 54 is fixed to the end portion 53, and a curved portion 55 having an upwardly convex shape is formed at an intermediate portion of the first movable member 51. A curved portion 56 having a downward convex shape is formed at an intermediate portion of the movable member 52.
In this case, in the movable contact plate 50a, for example, as shown in FIG. 3, the first and second movable members 51 and 52 are arranged in a juxtaposed state and are connected to each other by the free ends 53a and 53a by the connecting portion 57a. After the curved portions 55 and 56 are formed as described above in a sheet punched as the conductor plate 57, the connecting portion 57a is bent and overlapped. And
In the first movable member 51, a rectangular hole-shaped base end fulcrum portion 59 formed on the base end portion 58 side is formed on the right end side of the base end portion 34a of the movable contact conductor 27a. The second movable member 52 is inserted and engaged with the portion 60a, and the notched second proximal fulcrum portion 62 formed on the proximal end portion 61 side of the second movable member 52 is the proximal end portion.
It is engaged with a second support portion 63a located on the left end side of 34a and slightly below the first support portion 60a, whereby the movable contact plate 50a is supported and held by the base end portion 34a. ing.
In this state, the movable contact plate 50a has the second movable member 52
Due to the spring action of the curved portion 56, a displacement force that directs the free end portion 53 to the upper left is exerted, and this upward component force causes the movable contact portion 54 to contact the fixed contact portion 49a on the normally closed side with contact pressure. is doing. Further, the operation element 38a is adapted to abut on the base end portion 58 of the first movable member 51. Then, the movable contact plate 50a having the movable contact portion 54 and the fixed contact portions 36a and 49a on the normally open side and the normally closed side are connected to the changeover switch portion.
64a is configured. Further, the movable contact plate 50b formed in exactly the same manner constitutes the changeover switch section 64b together with the respective parts shown by adding the subscript b instead of the subscript a to the same portion as the changeover switch section 64a. ing. That is,
The base end portion 50b is supported and held by the support portion conductor 34b of the movable contact conductor 27b, and the movable contact portion 54b is in contact with the facing normally closed fixed contact portion 49b with a contact pressure. The changeover switch section 64b is constituted by the movable contact plate 50b having the movable contact section 54 and the normally open side and normally closed side fixed contact sections 36b and 49b.

In the sub-switch device 21 configured in this way, as shown in FIG. 1, a printed wiring board 66 having an emitting diode 65, which will be described later, is arranged on the side surface portion from which the auxiliary terminals 35a, 47a and 48b are projected. Installed.

Next, the configuration of the main switch device 22 will be described with reference to FIGS. 14 to 20. In this case, the main switch device 22 is configured to have two changeover switch parts 64c and 64d in substantially the same manner as the above-mentioned subswitch device 21, and a changeover switch part corresponding to the changeover switch parts 64a and 64b. The respective parts of 64c and 64d are denoted by the same reference numerals with the subscripts c and d, and the same parts are denoted with the same reference numerals, and different points will be described below. Fixed contact conductors 26c and 26d incorporated in the case 24 'by insert molding
As shown in FIG. 19, it is formed by a conductor plate 67 obtained by stamping a plate material, which includes conductors 41c and 26d in addition to the conductor plate 41 of the sub-switch device 21. Between the auxiliary conductor portion 43c and the locking claw portion 44d and between the auxiliary conductor portion 43
It has a shape of being connected by the connecting conductors 68 and 69 via the d and the locking claw portion 44c. Like the conductor plate 44, the conductor plate 67 is press-folded as shown in FIG. 11 and insert-molded so that only the auxiliary terminal 47c of the fixed contact conductor 40c projects laterally. Then, the connecting conductors 45 and 46 are cut by a press cutting process to form a case 24 ', which has a shape as shown in FIG. 18 when viewed from the bottom surface. Then, the main switch device 22 constituted by this has an auxiliary terminal 35
Issuing diode described later on the side surface where c and 47c are projected
A printed wiring board 71 on which 70 is arranged is attached.

Next, the electrical configuration will be described with reference to FIG. Reference numerals 72 and 73 denote positive and negative DC power supply terminals connected to a battery (not shown), respectively, and the main switch device 22
Connected to the main terminals 32c and 42d. In the main switch device 22, the main terminal 32c is connected to the fixed contact portions 36c and 36d on the normally open side and is also connected to the auxiliary terminal 35c, and the main terminals 42c and 42d.
Are connected in common by the connection conductors 68, 69 and are also connected to the fixed contact parts 49c, 49d on the normally closed side and the auxiliary terminal 47d, and the main terminals 33c and 33d are connected to the movable contact plates 50c and 50d, respectively. ing. A series circuit of the light emitting diode 69 and the resistor 74 arranged on the printed wiring board 70 is connected between the auxiliary terminals 35c and 47d. Main terminal 33c of this main switch device 22
33d are connected to the main terminals 42a and 42b of the sub switch device 21, respectively, and the main terminal 32a of the sub switch device 21 is connected to the positive DC power supply terminal 72. In this sub-switch device 21, the main terminal 32a is connected to the fixed contact portions 36a and 36b on the normally open side and is also connected to the auxiliary terminal 35a, and the main terminal 42a is the fixed contact portion 49a on the normally closed side and the auxiliary terminal. 47a, the main terminal 42b is connected to the normally closed side fixed contact portion 49b and the auxiliary terminal 47b, and the main terminal 33a and
33b is connected to the movable contact plates 50a and 50b, respectively. One end of the series circuit of the light emitting diode 65 and the resistor 75 arranged on the printed wiring board 66 is connected to the auxiliary terminal 35a, and the other end is connected to the auxiliary terminals 47a and 48b through the diodes 76 and 77, respectively. Has been done. Reference numeral 78 is a DC motor for driving a window, both terminals of which are respectively the main terminals 33a and 33b of the sub-switch device 21.
When the positive DC power supply voltage is applied to the main terminal 33a, the positive rotation is performed, and when the positive DC power supply voltage is applied to the main terminal 33b, the reverse rotation is performed to raise and lower the window. It is like this.

Next, the operation of this embodiment will be described.

First, in FIG. 1 showing the cross section of the sub-switch device 21 on the side of the changeover switch portion 64a, the movable contact plate 50a is moved to the upper left by the spring force of the curved portion 56 of the second movable member 52 at its free end portion 53. The displacement force is applied to the movable contact portion 54 by the upward component force, and the movable contact portion 54 is in contact with the fixed contact portion 49a on the normally closed side. In such a state, when a knob (not shown) provided on the upper portion of the sub switch device 21 is rotated and the operator 38a is pressed downward, the first movable member 51 of the movable contact plate 50a is moved. The base portion 58 is displaced downward while deforming so as to be curved. After this, the first
The curved portion 55 of the movable member 51 covers the second support portion 63a so that the line connecting the protruding base portions at both ends of the curved portion 55 is the second.
When the movable contact plate 50a comes to be positioned below the base end fulcrum portion 62 of the movable member 52,
The spring force of the curved portion 56 of the movable member 52 provides a downward displacement force to the left, and the downward component force causes the free end portion 53 to rapidly move downward to move the movable contact portion 54. Fixed contact part 3 on the normally open side separated from the fixed contact part 49a on the normally closed side
6a comes into contact with the snap action,
The state is as shown in FIG. When the pressing force applied to the operator 38a by the knob is removed, the movable contact plate 50a is restored by the spring force of the first movable member 51 and the line connecting the projecting bases at both ends of the moving curved portion 55 is removed. When the second movable member 52 is located above the base end fulcrum portion 62, the spring force of the curved portion 56 of the second movable member 52 gives the free end portion 53 a displacement force to the upper left. The free end portion 53 rapidly moves upward due to the upward component force, and the movable contact portion 54 is separated from the fixed contact portion 36a on the normally open side and the fixed contact portion 49a on the normally closed side. The snap action that comes into contact with is performed and the state returns to the state shown in FIG. The other changeover switch unit 64b and the changeover switch units 64c and 64d of the main switch device 22 perform the same operation.

Now, when the changeover switch parts 64a to 64d are restored, they are electrically in the state shown in FIG. In this state, the light emitting diode 69 of the main switch device 22 is
Positive DC power supply terminal 72, main terminal 32c, auxiliary terminal 3
5c, the light emitting diode 69, the resistor 74, the auxiliary terminal 47d, the main terminal 42d and the negative DC power supply terminal 73 are energized and lit, and the light emitting diode 65 of the sub-switch device 21 is a positive DC power supply. Terminal 72, sub switch device 21
Main terminal 32a, auxiliary terminal 35a, light emitting diode
65, resistance 75, diode 77, auxiliary terminal 48b, main terminal 42b, main terminal 33d of main switch device 22, movable contact plate 50d, fixed contact part 49d on the normally closed side, main terminal 42d and negative DC power supply terminal 73 The route is energized and lit. The cathode of the light emitting diode 65 has a resistor 75,
Diode 76, auxiliary terminal 47 of sub-switch device 21
a, the main terminal 42a, the main terminal 33c of the main switch device 22, the movable contact plate 50c, the fixed contact portion 49c on the normally closed side, and the main terminal 42d, and are simultaneously connected to the negative DC power supply terminal 73.

Now, in the changeover switch part 64a of the sub-switch device 21, when the movable contact plate 50a comes into contact with the fixed contact part 36a on the normally open side, the DC motor 78 causes the positive DC power supply terminal 72 and the main part of the sub-switch device 21 to operate. Terminal 32a, normally open side fixed contact part 36a,
Moving contact plate 50a, main terminal 33a, DC motor 78, main terminal 33b of sub-switch device 21, moving contact plate 50b, fixed contact part 49b on the normally closed side, main terminal 42b, main switch device
The main terminal 33d of 22, the movable contact plate 50d, the fixed contact portion 49d on the normally closed side, the main terminal 42d and the negative DC power supply terminal 73 are energized to rotate forward. Therefore, a window (not shown) is raised, for example, by switching the changeover switch portion 64a. Even when the changeover switch section 64a is changed in this way, the light emitting diodes 65 and 69 continue to light up as described above.

Next, when the knob of the sub-switch device 21 is rotated in the opposite direction to the above so that the movable contact plate 50b of the changeover switch part 64b comes into contact with the fixed contact part 36b on the normally open side, the DC motor 78 Is the positive DC power supply terminal 72, the main terminal 32a of the sub-switch device 21, the fixed contact part 36b on the normally open side, the movable contact plate 50.
b, main terminal 33b, DC motor 78, sub switch device 21
Main terminal 33a, movable contact plate 50a, fixed contact on the normally closed side
49a, main terminal 42a, main terminal 33c of main switch device 22, movable contact plate 50c, fixed contact part 49c on the normally closed side, main terminal 42d and negative DC power supply terminal 73 are energized in the opposite direction to the above. Then, it starts to rotate in the reverse direction. Therefore,
A window (not shown) is lowered, for example, by switching the changeover switch portion 64b. still,
Even when the changeover switch unit 64b is changed in this way,
The light emitting diodes 65 and 69 continue to light as described above.

Now, a case where the main switch device 22 is operated will be described.

First, when the movable contact plate 50c of the changeover switch portion 64c comes into contact with the fixed contact portion 36c on the normally open side when the knob (not shown) arranged on the upper part of the main switch device 22 is rotated, the DC motor 78 is a positive DC power supply terminal 72, a main terminal 32c of the main switch device 22, a fixed contact portion on the normally open side.
36c, movable contact plate 50c, main terminal 33c, sub switch device
21 main terminal 42a, normally closed side fixed contact part 49a, movable contact plate 50a, main terminal 33a, DC motor 78, sub-switch device 21 main terminal 33b, movable contact plate 50b, normally closed side fixed contact part 49b The main terminal 42b, the main terminal 33d of the main switch device 22, the movable contact plate 50d, the fixed contact portion 49d on the normally closed side, the main terminal 42d and the negative DC power supply terminal 73 are energized to rotate positively. Therefore, the window is raised. Even if the changeover switch unit 64c is changed in this way, the cathode of the light emitting diode 65 still has the resistor 75, the diode 77, the auxiliary terminal 48b of the sub-switch device 21, the main terminal 42b, the main terminal 33d of the main switch device 22, Moving contact plate 50d, normally closed fixed contact part 49d and main terminal 4
Since it is connected to the negative DC power supply terminal 73 via 2d,
The light emitting diode 65 is lit.

Next, the movable contact plate 50d of the changeover switch portion 64d is rotated by the knob of the main switch device 22 so that the fixed contact portion on the normally open side.
When it comes into contact with 36d, the DC motor 78 is connected to the positive DC power supply terminal 72 and the main terminal 32 of the main switch device 22.
c, normally open side fixed contact part 36d, movable contact plate 50d, main terminal
33d, main terminal 42b of sub switch device 21, fixed contact part 49b on normally closed side, movable contact plate 50b, main terminal 33b, DC motor 78, main terminal 33a of sub switch device 21, movable contact plate 50a, normally closed side Fixed contact part 49a, main terminal 42a, main terminal 33c of main switch device 22, movable contact plate 50c, fixed contact part 49c on the normally closed side, main terminal 42d, and negative DC power supply terminal 73. It starts to rotate, and the window is lowered. Even if the changeover switch unit 64d is changed in this way, the cathode of the light emitting diode 65 still has the resistor 75, the diode 76, the auxiliary terminal 47a of the sub switch device 21, the main terminal 42a, the main terminal 33c of the main switch device 22, and the like. Moving contact plate 50c, normally closed side fixed contact part 49
Since it is connected to the negative DC power supply terminal 73 via c and the main terminal 42d, the light emitting diode 65 is lit.

According to this embodiment, the following effects can be obtained.

That is, firstly, the fixed contact conductors 40a and 40b (40
c and 40d) are insert-molded in the case 24 (24 '), and fixed contact parts 49a and 49b (49c and 49d) on the normally closed side of the changeover switch parts 64a and 64b (64c and 64d) and the main terminals 42a and 42b ( 42c and 42d) are integrated,
The overall size of the changeover switch can be reduced as compared with the conventional case in which the entire case is covered with a case.

Second, the movable contact conductors 27a and 27b of the base 23 (23)
The movable contact plates 50a and 50b (50c and 50d) are engaged with the base end portions 34a and 34b (34c and 34d) of (27c and 27d), respectively, and the operators 38a and 38b (38c) are attached to the case 24 (24 '). And 38d)
Since the assembly is completed by attaching the base and connecting the base 23 (23) and the case 24 (24 '), there is no complicated assembly structure unlike the conventional one, so automatic assembly is possible. Therefore, it is easy to assemble.

Third, the normally open side fixed contact conductors 26a and 26b (26c and 2
6d) the insert-molded base 23 (23) and the normally closed side fixed contact conductors 40a and 40b (40c and 40d) are insert-molded into the case 24 (24 ') to join the normally open side. Since the fixed contact parts 36a and 36b (36c and 36d) and the fixed contact parts 49a and 49b (49c and 49d) on the normally closed side can be opposed to each other, the facing distance is substantially constant depending on the molding die. Therefore, the fixed contact portions of the movable contact plates 50a and 50b (50c and 50d) are small.
The contact pressure with respect to 36a, 36b, 49a and 49b (36c, 36d, 49c and 49d) can be made substantially constant, and the quality can be stabilized.

The above-described embodiment is a case where the present invention is applied to a switch device of a window regulator, but the present invention is not limited to this and can be applied to all switches that perform switching. Therefore, one switching switch is used as a switching device. A part may be used.

[Effect of the Invention] Since the switch device of the present invention is as described above,
It has the following effects.

First, since the terminal for the fixed contact on the normally closed side is insert-molded in the case, a part of the changeover switch part is integrated with the case and the whole changeover switch part is covered by the case. It is possible to reduce the overall size compared to.

Secondly, the assembly is completed by engaging the movable contact plate with the base end of the movable contact terminal of the base, attaching the operating element to the case, and then combining the base and the case, so that automatic assembly is possible. Makes it easy to assemble.

Thirdly, by combining the base in which the fixed contact terminal on the normally open side is insert-molded and the case in which the fixed contact terminal on the normally closed side is insert molded, the fixed contact part on the normally open side and the normally closed side are combined. Since the fixed contact portion on the side can be made to face each other, the facing distance is substantially constant depending on the molding die and has little variation. Therefore, the contact pressure of the movable contact portion to the fixed contact portion can be made substantially constant, It is possible to stabilize the quality.

[Brief description of drawings]

FIGS. 1 to 21 show an embodiment of the present invention. FIGS. 1 and 2 are vertical front views showing before and after operation, and FIG. 3 is a development view of a movable contact plate. FIG. 4 is a top view of the sub-switch device, FIG. 5 is a bottom view thereof, FIG. 6 is a front view thereof, FIG. 7 is a side view thereof, FIG. 8 is a bottom view of the same case, and FIG. 9 is a base thereof. Top view, FIGS. 10 and 11 are a developed view and a top view of the conductor plate of the same case after processing, and FIGS. 12 and 13 are views corresponding to FIGS. 10 and 11 of the base, and FIG. Through 18th
Figures are equivalent to Figures 4 to 8 of the main switch device.
19 and 20 show the main switch device of FIGS. 10 and 11.
FIG. 21 is an electrical configuration diagram corresponding to FIG. Figures 22 through
FIG. 24 shows a conventional example, FIG. 21 is a top view of a movable member, and FIGS. 23 and 24 are views corresponding to FIGS. 1 and 2 of a main part. In the drawing, 21 is a sub switch device (switch device), 22 is a main switch device (switch device), 23 is a base, and 2
4, 24 'is a case, 26a to 26d are fixed contact conductors (base ends), 27a to 27d are movable contact conductors, 32a and 32c are main terminals (normally-open side fixed contact terminals), 33a to 3
3d is main terminal (terminal for movable contact), 34a to 3
4d is a base end portion, 35a and 35c are auxiliary terminals, and 36a to 36d.
Is a fixed contact on the normally open side, 38a to 38d are operators, 39a to 3
9d is a knob support portion, 40a to 40d are fixed contact conductors (base end portions), 42a to 42d are main terminals (normally closed side fixed contact terminals), 44a to 44d are locking claw portions, 47a and 47c, 48b
Is an auxiliary terminal, 49a to 49d are fixed contact parts on the normally closed side,
50a to 50d are movable contact plates, 51 and 52 are first and second movable members, 53 is a free end portion, 54 is a movable contact portion, 55 and 56 are first and second curved portions, and 57 is a connecting portion. , 58 and 61 are first and second proximal end portions, 59 and 62 are first and second proximal end fulcrums,
Reference numerals 60 and 63 are first and second support portions, 64a and 64d are changeover switch portions, and 68 and 69 are connection conductors.

Claims (1)

[Scope of utility model registration request] 1. A base on which a fixed contact terminal and a movable contact terminal on the normally open side are insert-molded, and a fixed contact portion on the normally open side attached to the base end of the fixed contact terminal on the normally open side. A movable contact plate made of a leaf spring engaged with the base end of the movable contact terminal, a movable contact part attached to the movable contact plate and facing the fixed contact part on the normally open side, and a normally closed Side fixed contact terminal is insert-molded and joined to the base, the normally closed side fixed contact terminal attached to the normally closed side fixed contact terminal and contacting the movable contact section, and the case A switch provided movably, and an operator for pressing the movable contact plate by the movement to separate the movable contact part from the fixed contact part on the normally closed side and to contact the fixed contact part on the normally open side. apparatus.