JPH09306297A - Switch stopper structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stop a knob at a specified position without horizontal shift and reduce faults by forming a stopper part at one end face of a knob operation lever and providing a groove part narrower than a width of a through hole at one end edge of the through hole of a top case. SOLUTION: A stopper part 4e is formed at one end face of an operation lever 4b of a knob 4. A groove part 1n is provided by means of a step part 1m provided at one end edge of a through hole 11 of a top case 1 so that the stopper part 4e is engaged with play narrower than a width W of the through hole 11. When the knob 4 is operated in an upper direction, a stopper pad 1p is formed at a lower edge of the groove part 1n so that the stopper part 4e abuts. When the knob 4 is operated in the upper direction, the operation lever 4b is rotationally moved and inclined in the through hole 11, the stopper part 4e abuts with the stopper pad 1p, and rotation movement of the operation lever 4b is stopped. By such a simple constitution, the knob can be stopped certainly without horizontal shift at a position at which the knob is rotationally moved at a specified angle, and switch fault can be reduced to the minimum.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention operates a switch provided with a switch contact portion formed of a small switch in a case such as a power window switch for automatically opening and closing a window (window glass) of an automobile. At this time, the present invention relates to a switch stopper structure for surely operating the switch and appropriately stopping it at a predetermined position.

[0002]

2. Description of the Related Art Conventionally, for example, a power window switch for automatically opening and closing an automobile window installed on an armrest of an automobile door or an inner wall surface of the door is disclosed in Japanese Utility Model Publication No. 3-37921. Many other types have been proposed. A switch contact portion such as a small switch having a connecting portion in such a power window switch and a switch unit such as a printed circuit board are arranged in a case including an upper case and a lower case that is fitted and locked with the upper case. Has been done.

Further, a knob with an operating rod hanging down is pivotally provided on the upper case, and the operating rod of this knob is engaged with an operating shaft which is a connecting portion of a switch contact portion to swing the knob in the left-right direction. The switch contact portion is opened or closed by operating the switch contact portion in the vertical direction.

In the above power window switch,
There is a two-step seesaw switch that opens and closes a window of a driver's seat of an automobile as one for swinging the operating rod of the knob in the left-right direction. In such a two-step seesaw switch, the knob is coaxial with the shaft hole of the knob, and the shaft hole of the operating rod protruding downward from the knob is fitted to the support shaft in the cylindrical portion of the upper case to allow the knob to move. It has a structure that can be swingably attached to the upper case. The knob is the first of this knob
The operation of the second step moves the window up and down during the operation time, and the operation of the second step automatically moves the window up and down.

[0005]

The conventional power window switch for automatically opening and closing the window of the automobile is constructed as described above, and in particular, the switch for swinging the operating rod of the knob in the left and right direction, that is, the automobile. In the two-stage seesaw switch that opens and closes the driver's seat window, the window can be moved up and down during the operation time by the operation of the first step of the knob as described above, and automatically by the operation of the second step. The window can be moved up and down.

In the two-stage seesaw switch as described above, when the knob is operated in the upward direction, in addition to the first step operation by the upward force applied to the knob, a larger upward force applied to the knob. When the operation of the second step is performed, the knob is rotated by a predetermined angle, and the stopper surface of the lower surface of the knob contacts the surface of the upper case to stop the rotation of the knob.

However, in the above-described conventional two-step seesaw switch, when the second step operation is performed by applying an upward force to the knob, the knob is rotated so that the stopper is provided on the lower surface of the knob. With the structure in which the surface is brought into contact with the surface of the upper case to stop it, the knob cannot be reliably stopped at a predetermined position, and the mechanism for stopping the rotation of the knob with such a structure is unstable. It will be
Therefore, when the upward force applied to the knob is overloaded, a large load force applied to the knob causes a force to move the knob by shifting it laterally, and as a result, from the shaft hole of the operating rod of the knob. There is a problem in that the support shaft in the cylindrical portion of the upper case that is axially engaged with the shaft comes off.

The present invention has been made to solve the above-mentioned problems, and is a switch having a switch contact portion formed of a small switch in a case such as a power window switch, and particularly, a driver's seat of an automobile. In a switch that swings the operating rod of a knob, such as a two-step seesaw switch that opens and closes the window, in the left-right direction, the knob is rotated by a predetermined angle, and with a simple structure, the knob does not shift laterally. An object of the present invention is to provide a switch stopper structure that can be reliably stopped at a predetermined position, so that the knob does not come off from the case, and the occurrence of failure of the switch can be minimized.

[0009]

A stopper structure for a switch according to claim 1 of the present invention is axially supported by a case,
The operating rod of the knob is provided with a knob that hangs the operating rod and a switch contact portion that engages with the operating rod.The operating rod of the knob has side surface portions and end surface portions that connect these side surface portions, and is formed on this side surface portion. In a switch pivotally supported by fitting a support shaft protruding from the case into the shaft hole from one side surface side of the operating rod, a stopper formed on one end surface portion of the operating rod of the knob. And the stepped portion provided at one end of the through hole provided in the case so that the operating rod is inserted therethrough, the width is defined to be narrower than the width of the through hole, and the stopper portion is loosely fitted. It is characterized in that it is provided with a groove portion provided and a stopper receiving portion formed at a bottom edge portion of the groove portion so that the stopper portion abuts when the knob is operated upward.

The switch stopper structure according to claim 2 of the present invention is the switch stopper structure according to claim 1, wherein a stopper receiving portion formed at a bottom edge portion of the groove portion upwardly moves the knob. When the knob is operated, the stopper portion formed on one end surface portion of the operating rod of the knob is formed on an inclined surface having an angle that matches an angle of inclination when abutting against the stopper receiving portion.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A stopper structure for a switch according to the present invention is, for example, a power window switch for automatically opening and closing an automobile window installed on an armrest of an automobile door, an inner wall surface of the door, etc. In a switch that swings the operating rod of a knob such as a two-step seesaw switch that opens and closes the window of the seat to the left and right, at the position where the knob of this switch is rotated by a predetermined angle,
The simple structure is extremely suitable for application and implementation when the knob is securely stopped at a predetermined position.

That is, in the switch stopper structure of the present invention, a stopper portion is formed on one end surface portion of the operating rod of the knob, and one end edge portion of the through hole provided in the case so that the operating rod is inserted therethrough. The width of the through hole is narrower than the width of the through hole, and the groove is provided to allow the stopper to fit loosely.The stopper is attached to the bottom edge of the groove so that the stopper abuts when the knob is operated upward. With the configuration in which the receiving portion is formed, it is possible to reliably and stably stop the knob at the predetermined position at the position where the knob is rotated by the predetermined angle without lateral displacement.

[0013]

Embodiments of the present invention will be described below.
2 is an exploded perspective view schematically showing a configuration in which a switch stopper structure according to an embodiment of the present invention is applied to a power window switch for automatically opening and closing an automobile window, FIG.
1 is a partial cross-sectional side view schematically showing the configuration of a stopper structure part of the switch used for one knob in the power window switch of FIG. 1, and FIG. 3 is a part of the stopper structure part of the switch of FIG. 5 is a partial cross-sectional side view schematically enlarging an operating mode in the configuration, FIG. 4 is a cross-sectional view schematically enlarging the internal configuration of one knob in FIG. 2, and FIG.
2 is a cross-sectional view schematically showing a configuration in which one knob of FIG. 2 is swingably supported on an upper case, and FIG. 6 is a state of FIG. 2 in which the upper case of FIG. 5 is viewed from the back side. FIG. 7 is a partial plan view schematically showing the configuration in an enlarged state, and FIG. 7 is a schematic plan view showing the configuration of the upper case of FIG.

As shown in FIG. 1, reference numeral 1 denotes a power window switch installed on an armrest of a vehicle door, an inner wall surface of the door, or the like.
It is an upper case having 4, 5, 6 and 7. Knob 2
It is an operation member of a push-lock switch that locks the window, and by locking a claw (not shown) to a step (not shown) in the tubular portion 1a of the upper case 1 via the spring 8, the knob 2 is It is attached to the upper case 1 so as to be vertically movable. Further, the knob 2 has an operating rod 2 through which the tubular portion 1a is inserted.
a is projected. The operating rod 2a, which moves up and down, includes the tubular portion 1.
a, a through hole (not shown) of the upper case 1 and a through hole 9a of the printed circuit board 9 are inserted and fitted into an operation shaft (not shown) of a switch contact portion (not shown).

The knob 3 shown in FIG. 1 is an operation member of a seesaw switch that locks the door, and the shaft hole 3 of the knob 3 is provided.
The operating rod 3 is coaxial with a and protrudes downward from the knob 3.
The knob 3 is swingably attached to the upper case 1 by axially fitting a shaft hole (not shown) formed in the side surface of b to a support shaft (not shown) in the tubular portion 1b of the upper case 1. .
Inside the knob 3, a moderation groove (not shown) with which the steel ball 11 urged by the spring 10 is brought into pressure contact is provided, and the moderation groove automatically returns the knob 3 to the OFF position. Operating rod 3b protruding downward from the knob 3
The lower end of the bifurcated shape is inserted through the cylindrical portion 1b, the through hole (not shown) of the upper case 1 and the cutout portion 9b of the printed circuit board 9, and is engaged with the operating shaft 12a of the switch contact portion 12.

The knob 4 shown in FIGS. 1 to 7 is an operating member of a two-stage seesaw switch that opens and closes the window of the driver's seat, is coaxial with the shaft hole 4a of the knob 4, and projects downward from the knob 4. Shaft hole 4 formed on the side of the operating rod 4b
The knob 4 is swingably attached to the upper case 1 by engaging c with the support shaft 1k of the tubular portion 1c of the upper case 1 from the side surface side of the operating rod 4b. The knob 4 moves the window up and down during the operation time by the operation of the first step, and automatically moves the window up and down by the operation of the second step. Inside the knob 4, there is provided a moderation groove 4d with which the steel ball 14 urged by the spring 13 is brought into pressure contact, and the moderation groove 4d automatically returns the knob 4 to the OFF position.

The operating bar 4b protruding downward from the knob 4 has a bifurcated lower end, which has a cylindrical portion 1c, a through hole 1l of the upper case 1 having a width w with which the operating bar 4b can be displaced, and a printed circuit board 9.
The operation shaft 1 of the switch contactor 15 is inserted through the notch 9c of
5a. A stopper portion 4e is formed on one end surface portion of the end surface portions connecting both side surface portions of the operating rod 4b of the knob 4, and the through hole 1l is formed by a step portion 1m provided at one end edge portion thereof. The groove portion 1n is defined so as to be narrower than the width w and the stopper portion 4e is loosely fitted therein. When the knob 4 is operated upward, the stopper receiving portion 1 is provided at the bottom edge of the groove 1n so that the stopper portion 4e abuts.
forming p.

Further, a step portion 1m provided at one end of the through hole 11 of the upper case 1 defines a width smaller than the width w of the through hole 1l, and a groove portion 1n provided so that the stopper portion 4e is loosely fitted. The stopper receiving portion 1p formed on the bottom edge portion of the knob 4 is formed when the stopper portion 4e formed on one end surface portion of the operating rod 4b of the knob 4 comes into contact with the stopper receiving portion 1p when the knob 4 is operated upward. It is formed on an inclined surface having an angle that matches the angle of inclination.

The knob 5 shown in FIG. 1 is an operating member of an automatic reset type seesaw switch that opens and closes the passenger seat window, is coaxial with the shaft hole 5a of the knob 5, and is projected downward from the knob 5. The shaft hole (not shown) formed in the side surface of the operating rod 5b is axially fitted to the support shaft (not shown) in the cylindrical portion 1d of the upper case 1, so that the knob 5 can swing on the upper case 1. It is attached. Inside the knob 5, the spring 16
A moderation groove (not shown) with which the steel ball 17 urged against the pressure contact is provided. The moderation groove turns off the knob 5.
It automatically returns to the position. The bifurcated lower end of the operating rod 5b projecting downward from the knob 5 is inserted through the tubular portion 1d, the through hole (not shown) of the upper case 1 and the through hole 9d of the printed circuit board 9 so that the switch contact portion 18 is provided. It is engaged with an operating shaft (not shown).

The knob 6 shown in FIG. 1 is an operation member of an automatic return type seesaw switch that opens and closes the window on the passenger side of the rear seat, is coaxial with the shaft hole 6a of the knob 6, and extends downward from the knob 6. By pivoting a shaft hole (not shown) formed on the side surface of the protruding operating rod 6b with a support shaft (not shown) in the tubular portion 1e of the upper case 1, the knob 6 swings to the upper case 1. It can be attached freely. Inside the knob 6, a moderation groove (not shown) with which the steel ball 20 urged by the spring 19 is pressed is provided, and the moderation groove automatically returns the knob 6 to the OFF position. The bifurcated lower end of the operating rod 6b protruding downward from the knob 6 has a cylindrical portion 1
e, the through hole (not shown) of the upper case 1 and the notch 9 of the printed board 9 are inserted and engaged with the operating shaft (not shown) of the switch contact portion 21.

The knob 7 shown in FIG. 1 is an operating member of an automatic return type seesaw switch that opens and closes the window on the rear driver's seat side, is coaxial with the shaft hole 7a of the knob 7, and extends downward from the knob 7. By pivoting a shaft hole (not shown) formed on the side surface of the protruding operating rod 7b with a support shaft (not shown) in the tubular portion 1f of the upper case 1, the knob 7 swings to the upper case 1. It can be attached freely. Inside the knob 7, a moderation groove (not shown) with which the steel ball 23 urged by the spring 22 is brought into pressure contact is provided, and the moderation groove automatically returns the knob 7. The forked lower end of the operating rod 7b protruding downward from the knob 7 has a tubular portion 1f and an upper case 1
Through holes (not shown) and through holes 9 of the printed circuit board 9
It is inserted through f and engaged with the operation shaft (not shown) of the switch contact portion 24.

Holes 1g and 1h are provided on the side surface of the upper case 1, and projecting portions 25a and 25a are provided on the side surface of the lower case 25.
25b is provided and the holes 1g and 1h of the upper case 1 are provided.
The case is assembled by fitting and locking the protrusions 25a and 25b of the lower case 25 inward. The upper case 1 and the lower case 25 are both formed by molding using plastic or the like, and therefore, the upper case 1 and the lower case 25 are firmly fitted to each other with an elastic force applied.

Holes 1g and 1h provided on the side surface of the upper case 1
Are provided with ribs 1i, 1j having a desired height (for example, about 0.3 mm) so as to surround them. Therefore, when the water droplets or the like attached to the surface of the power window switch flow down along the side surface from the upper portion of the upper case 1, the movement direction thereof is guided so as to flow along the peripheral portions of the ribs 1i and 1j, and The water is guided and flows downward, and finally drops of water are discharged from the upper case 1 downward.

A feature of the present invention is that a power window switch for automatically opening and closing a window of an automobile, in particular, a knob operating rod such as a two-step seesaw switch for opening and closing a window of a driver's seat of a vehicle is rocked in the left-right direction. In the switch to be made, as shown in FIGS. 2 to 6, a stopper portion 4e is formed on one end surface portion of the operating rod 4b of the knob 4,
The through hole 1l is formed by the step portion 1m provided at one edge of the through hole 11 provided in the upper case 1 so that the operating rod 4b is inserted therethrough.
Is defined to be narrower than the width w of the groove 1n, and the groove portion 1n is provided so that the stopper portion 4e can be loosely fitted, and when the knob 4 is operated upward, the stopper receiving portion is provided at the bottom edge portion of the groove portion 1n so that the stopper portion 4e abuts. It exists in the point which has the structure which formed the part 1p.

In the switch for swinging the operating rod 4b of the knob 4 in the left-right direction as shown in FIGS. 2 to 7 to which the stopper structure of the switch of the present invention is applied as described above, the knob 4 is indicated by an arrow in FIG. When operating in the upward direction as shown by, the operating rod 4b of the knob 4 is provided with the through hole 1
In this case, the stopper portion 4e formed on one end face of the operating rod 4b is loosely fitted into the groove 1n as shown in FIG. 6, and finally the stopper portion of the operating rod 4b is rotated. 4e is a stopper receiving portion 1p formed at the bottom edge of the groove 1n
The operating rod 4b at the position shown in FIG.
Is stopped.

In this case, the stopper receiving portion 1p formed on the bottom edge portion of the groove portion 1n is provided with the stopper 4a when the knob 4 is operated upward.
Since the stopper portion 4e of the operating rod 4b is formed on the inclined surface having an angle matching the angle of rotation and inclination, the stopper portion 4e comes into contact with the stopper receiving portion 1p in a close contact state, and as a result, The rotation of the operating rod 4b can be reliably stopped in a stable state. At the same time, since the stopper portion 4e is loosely fitted in the groove portion 1n, the lateral displacement of the operating rod 4b is also reliably restrained, whereby the operating rod 4b of the knob 4 is moved to the position shown in FIG. As shown by the two-dot broken line, it does not move laterally, and it is supported from the shaft hole 4c formed in the side surface of the operating rod 4b of the knob 4 through the shaft portion 4c of the upper case 1 which is axially engaged therewith. It is possible to effectively prevent the inconvenience of the shaft 1k coming off.

[0027]

As described above, according to the switch stopper structure of claim 1 of the present invention, in the switch in which the switch unit is housed in the case, the stopper portion is formed on one end surface portion of the operating rod of the knob. The width of the through hole is defined by a step provided at one edge of the through hole provided in the case so that the operating rod can be inserted through the groove. Since the stopper receiving part is formed on the bottom edge of the groove so that the stopper part abuts when the is operated upwards, the knob is laterally displaced with a simple structure at the position where the knob is rotated by a predetermined angle. It is possible to surely stop the knob at a predetermined position without doing so, so that the knob does not come off from the case, and the occurrence of failure of the switch can be minimized. It exhibits an excellent effect.

According to a second aspect of the present invention, in the stopper structure for a switch according to the first aspect, the stopper receiving portion formed on the bottom edge of the groove portion operates the knob when the knob is operated upward. Since the stopper portion formed on one end surface of the rod is formed on the inclined surface having an angle that matches the angle at which the stopper portion abuts the stopper receiving portion, when the knob is rotated by a predetermined angle, the knob is There is an effect that the knob can be reliably stopped at a predetermined position and stably in a stable state without lateral displacement.

[Brief description of drawings]

FIG. 1 is an exploded perspective view schematically showing a configuration in which a switch stopper structure according to an embodiment of the present invention is applied to a power window switch that automatically opens and closes an automobile window.

FIG. 2 is a partial cross-sectional side view schematically showing in enlarged form the configuration of the stopper structure of the switch used for one knob in the power window switch of FIG.

FIG. 3 is a partial cross-sectional side view schematically showing in enlarged form an operation mode in the configuration of the stopper structure portion of the switch of FIG.

FIG. 4 is a cross-sectional view schematically showing the internal structure of one knob shown in FIG. 2 in an enlarged manner.

5 is a schematic enlarged cross-sectional view showing a structure in which one knob of FIG. 2 is swingably supported on an upper case.

6 is a partial plan view schematically enlarging and showing the configuration of the state of FIG. 2 when the upper case of FIG. 5 is viewed from the back surface side.

7 is a partial plan view schematically showing the configuration of the state of FIG. 3 when the upper case of FIG. 5 is viewed from the back side.

[Explanation of symbols]

 1 Upper case 1a, 1b, 1c, 1d, 1e, 1f Cylindrical part 1g, 1h Hole part 1i, 1j Rib 1k Spindle 1l Through hole 1m Step part 1n Groove part 1p Stopper receiving part 2, 3, 4, 5, 6, 7 Knobs 2a, 3b, 4b, 5b, 6b, 7b Operating rod 3a, 4a, 4c, 5a, 6a, 7a Shaft hole 4d Moderation groove 4e Stopper part 8, 10, 13, 16, 19, 22 Spring 11, 14, 17, 20, 23 Steel balls 9 Printed circuit boards 9a, 9d, 9f Through holes 9b, 9c, 9e Cutouts 12, 15, 18, 21, 24 Switch contact parts 12a, 15a Operating shaft 25 Lower case 25a, 25b Protrusions

Claims (2)

[Claims] 1. A knob, which is rotatably supported by a case, hangs an operating rod, and a switch contact portion which engages with the operating rod.
The operating rod of the knob has both side surface portions and an end surface portion that connects these side surface portions, and a shaft that is formed in the side surface portion is provided with a support shaft projecting from the case on one side surface of the operating rod. In the switch fitted and pivoted from the side of the section, a stopper portion formed on one end surface portion of the operating rod of the knob and one end of a through hole provided in the case so that the operating rod is inserted therethrough. When the knob is operated in the upward direction, the stopper portion comes into contact with the groove portion defined by the step portion provided at the edge portion so as to be narrower than the width of the through hole, and the stopper portion is loosely fitted. A stopper structure for a switch, further comprising a stopper receiving portion formed on a bottom edge portion of the groove portion. 2. The stopper structure for a switch according to claim 1, wherein the stopper receiving portion formed on the bottom edge of the groove is one of the operating rods of the knob when the knob is operated upward. A stopper structure for a switch, wherein a stopper portion formed on an end face portion is formed on an inclined surface having an angle that matches an inclination angle when the stopper portion contacts the stopper receiving portion.