JPS6325453B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lever switch for a vehicle in which a single operating lever and an operating shaft inserted through the lever operate different switch mechanisms.

Conventionally, for example, in a car, the driver's seat has a large number of operating members that operate various switch mechanisms with different purposes.In order to simplify the operation of these members, a single operating lever has front and rear and front and rear control members. Two types of switch operation are provided by providing two types of operating displacement (up and down), and a knob is provided on the operating lever to enable operation of yet another different switch mechanism provided within this knob. is common. Recently, some devices have been designed to make the wiring process easier or to downsize the knob by eliminating or reducing the number of switches in the knob and eliminating or reducing the number of lead wires passing through the operating lever. This is achieved by inserting an operating shaft rotated by a knob into the operating lever and operating the switch mechanism with the operating shaft, and the switch operating mechanism consists of a cam member integrated with the operating shaft. Generally, the push rod for switch operation is displaced by means of a switch. However, with this configuration, the cam member integrated with the operating shaft is also displaced by the rotation of the operating lever, so the push rod must not apply any operating displacement to the switch mechanism due to the displacement of the cam member. However, the disadvantage is that the configuration of that part must be extremely complex and delicate.

The present invention has been made to eliminate the above-mentioned drawbacks, and its purpose is to enable four types of switch mechanisms to be operated by a combination of an operating lever and an operating shaft inserted through the operating lever. To provide a lever switch for a vehicle having an extremely simple configuration and easy processing and adjustment of parts.

Hereinafter, the present invention will be specifically described by way of an example with reference to the drawings.

In the figure, reference numeral 1 denotes a main body frame for constructing a suitable support mechanism, which is held on a steering jacket pipe as is well known, and is equipped with a well known cancel cam 2. 3 is an operating lever supported by the main body frame 1, and this operating lever 3 is centered on two orthogonal rotation center lines (the rotation center line of the shaft 9 and the rotation center line of the hollow shaft 7, which will be described later). For example, it is configured to be rotatable in two directions, for example, the vertical direction and the front-back direction, and by its rotation operation, a direction indicating lamp switch and a first switch mechanism 32 for daylight passing, which will be described later, can be switched. ing. The operating lever 3 is hollow and has an extension member 5 having a hollow portion 4 integrally extending from its tip in the direction of its rotational fulcrum. Reference numeral 6 denotes a lever holding member, which has a hollow shaft 7 rotatably inserted and held in the main body frame 1;
It is designed to be able to rotate within a certain range in the clockwise and counterclockwise directions in FIG. cancel cam 2
Two arms 8, 8 of a well-known structure are integrally provided, and are provided with a return displacement from the center. On the other hand, shafts 9, 9 are integrally provided on the upper and lower surfaces of the extension member 5 in FIG. When the lever is rotated from the neutral position NP to the right turn instruction position RP or left turn instruction position LP in FIG. 1, the entire lever holding member 6 moves clockwise or counterclockwise in FIG. It is rotated and held by a moderation mechanism (not shown) until it is returned to that position by the cancel cam 2. Therefore, the operating lever 3 is also moved around the shaft 9 supported by the lever holding member 6 to the high beam position of the headlamp in FIG.
HU, low beam position HL and passing position HP
In particular, the high beam position HU and low beam position HL are held in that position by the moderation mechanism 10, and the rotation operation to the passing position HP is automatically returned to the low beam position HL direction. It is becoming more and more common for people to resist. The moderation mechanism 10 is composed of a steel ball 11 held by the extension member 5 of the operating lever 3 and through holes 12a and 12b formed in a metal fitting 12 and into which the steel ball 11 is elastically engaged by a spring 13. On the other hand, as is well known, the shaft 9 integrated with the operating lever 3 is supported by the lever holding member 6 by forming a recessed part in the lever holding member 6 and inserting the shaft 9 into the recessed part. Stop and the metal fitting 1
2 is attached to the lever holding member 6 with a screw 14, and the other roles of the metal fitting 12 will be understood later. 15
is a hollow operating shaft, which is inserted into the hollow part of the operating lever 3 so as to be rotatable and movable in the axial direction;
A knob 16 has an index portion 16a protruding from a part of its outer periphery on a portion protruding from the free end of the operating lever 3.
are connected together by screws 17, and
As shown in FIG. 2, this knob 16 is rotatably fitted to the outer periphery of the free end of the operating lever 3, and is prevented from coming off from the free end by an engaging means 18. The operating shaft 15 is always urged to move rightward by receiving a resilient force between it and the operating lever 3 by a compression coil spring 19 surrounded by the operating shaft 15. The knob 16 integrated with the operation shaft 15 is used to control the wiper that wipes the windshield of a car.As shown in FIG. It can be rotated within a range that coincides with the LO and high-speed wiping positions HI, and is held at each position by a moderation mechanism (not shown). Mainly in FIGS. 1, 2, and 5, reference numeral 20 denotes a gear body corresponding to the rotary member for controlling a switch of the present invention, and a gear portion 21 is radially attached to a portion of the outer periphery of the short cylindrical shape that spans a desired arc angle. A shaft 22 is integrally formed on one end face of both end faces and protrudes in the direction of the rotation axis, and a boss portion 23 that similarly protrudes in the direction of the rotation axis is integrally formed on the other end face. Then, a slotted groove 24 is formed in this boss portion 23 in a shape cut from the protruding end, and an inner end surface 24 of the slotted groove 24 is formed.
A is formed into a convexly curved surface shape as shown in FIG. 2 to form a convexly curved surface portion 24a. Such a gear body 20 is arranged in a recess 25 formed in the main body frame 1, and the shaft 22, which surrounds the compression coil spring 26, is inserted into a through hole 27 formed in the main body frame 1, so that the gear body 20 is rotatable by a predetermined angle around the shaft 22 and movable in the direction of the rotation axis, and the recess 2
The metal fitting 12 prevents the metal fitting 5 from coming off.
On the other hand, the end of the operating shaft 15 opposite to the end having the knob 16 ends in the hollow part 4 of the extension member 5 of the operating lever 3, and near the end thereof, as shown in FIG. Two through holes 28, 28 corresponding to the slotted groove 24 are formed, and a notch 29 corresponding to one of the through holes 28 is formed on the outer periphery near the tip of the extension member 5 of the operating lever 3.
30 is a pin that constitutes a connecting means 31 by the slotted groove 24 and the protruding curved surface portion 24a, and this pin 30
through the through holes 28, 2 of the operating shaft 15 through the notch 29.
8 and the slot groove 2 of the gear body 20.
4 and 24, and one end of the pin 30 is received in the inner surface of the hollow portion 4 as shown in FIG. In this state, the pin 30 is located on one rotation center line of the operating lever 3, that is, on the rotation center line of the hollow shaft 7, and therefore moves the operating lever 3 to the second rotation center line.
Even if the pin 3 rotates perpendicularly to the plane of the paper in the figure,
The configuration is such that the position of 0 does not change. Since the gear body 20 is always urged to move rightward in FIG. In addition, the pin 30 is brought into contact with the inner end surfaces of the through hole 28 and the notch 29. In this case, the protruding curved surface portion 24 at the inner inner end of the slotted groove 24
A functions to allow the pin 30 to tilt as the operating lever 3 is rotated in the vertical direction in FIG. 2, and to prevent the rotation from being transmitted to the gear body 20. Also,
When the knob 16 is pressed to the left in FIG. 2 against the compression coil spring 19, the operating shaft 15 also moves to the left, and the pin 30 is held in the slotted groove 24 and the through hole 28 until the notch 29 The gear body 20 is moved to the left within the pin 30 via its protruding curved surface portion 24a.
is moved to the left. 32 is a first switch mechanism, 33 is a second switch mechanism, and first of all, the second switch mechanism 33 will be described first. ) is a sliding member which is held so that it can be held in place, on which a rack 35 is formed which meshes with the gear part 21 of the gear body 20, and on the opposite side there is a group of fixed contact pieces 36 (see FIG. 4). ) a pair of sliding contact pieces 38 pressed by a spring 37 sliding against
Holds 39. The fixed contact piece group 36 consists of fixed contact pieces 41 to 48 held on a board 40 screwed to the main body frame 1. Of these, the fixed contact piece 43 in particular is grounded, and a part of this is connected to the gear. The movable contact piece 43a is pressed and displaced by the shaft 22 of the body 20, and another fixed contact piece 49 facing this is provided on the main body frame 1. The fixed contact piece 49 and the movable contact piece 43a constitute a switch mechanism for a window washer. next,
Reference numeral 50 denotes a switch operating rod for operating the first switch mechanism 32, which is integrally protruded from the extension member 5 of the operating lever 3 and whose midway portion is positioned within the hollow shaft 7 of the lever holding member 6. A spherical pressing portion 50a formed at the tip thereof is positioned within a switch box 51 attached to the main body frame 1.
Reference numerals 52 and 53 denote a pair of movable contact plates whose base ends are fixed onto the substrate 54 so as to face each other via the pressing portion 50a of the switch operating rod 50, and 55 are alternately contacted by the movable contact plates 52 and 53. The fixed contact plate 56 is a fixed contact plate that is brought into contact with and separated from the movable contact plate 53, and the movable contact plate 53 and the fixed contact plate 5
5, the high beam switch S1 is connected, the movable contact plate 52 and the fixed contact plate 55 connect the low beam switch S2, and the movable contact plate 53 and the fixed contact plate 5
6 constitute a passing switch S3, respectively. Note that 57 is an electronic control circuit unit for reciprocating the wiper once at regular intervals, and 58 is a member for holding the wiring bundle.

Next, the operation of the above configuration will be explained. First, when the operating lever 3 is rotated from the neutral position NP to the right turn instruction position RP or left turn instruction position LP to indicate a right or left turn, the lever holding member 6 is rotated around the hollow shaft 7 by the operating lever 3. At this time, since the pin 30 is located on the rotational center line of the hollow shaft 7, the displacement due to the rotational operation of the operating lever 3 is not transmitted to this pin 30 at all, and therefore also to the gear body 20. No displacement transmission occurs. In addition, when the operating lever 3 is set to the low beam position HL with the headlamp switch (not shown) turned on, the switch operating rod 50 takes the position shown in FIG. Since the pressing portion 50a of the operating rod 50 is separated from the movable contact plate 52, the low beam switch S2 is closed and the headlamp is placed in the low beam state. When the operation lever 3 is rotated to the high beam position HU, the extension member 5 is rotated as a whole clockwise in FIG. Since the portion 50a takes the position shown by the two-dot chain line shown on the left in FIG. 4 and displaces the movable contact plates 52 and 53 to the left in FIG. 4, the distance between the movable contact plate 53 and the fixed contact plate 55 That is, the high beam switch S1 is closed and the headlamp is placed in the high beam state. Further, when the operating lever 3 is rotated in the direction of the passing position HP, the extension member 5 is rotated counterclockwise in FIG. 2 about the shaft 9, and the switch operating rod 50 is rotated counterclockwise in FIG. Since the entire body is tilted in the direction, the pressing portion 50
a takes the position shown by the two-dot chain line on the right side of Fig. 4,
While the low beam switch S2 remains closed, the gap between the movable contact plate 53 and the fixed contact plate 56, that is, the passing switch S3 is closed, and the high beam is turned on.
Therefore, the passing display is made by repeatedly rotating the operating lever 3 between the low beam position HL and the passing position HP. In addition, the low beam position HL and high beam position of the control lever 3
The above-described switching with the HU corresponds to daytime switching. In this way, when the operating lever 3 is rotated about the shaft 9 in the clockwise or counterclockwise direction in FIG.
The operating lever 3 can be moved by simply tilting it within the slotted groove 24.
The above rotational displacement is not transmitted to the gear body 20 at all. This transmission blocking effect is particularly ensured by forming a protruding curved surface 24a at the innermost end of the slotted groove 24 formed in the boss 23, and by a structure in which the pin 30 is brought into contact with the apex of the protruding curved surface 24a.

Next, to explain the wiper drive control,
To do this, as shown in Figure 6, turn knob 1.
6 is rotated so that its index portion 16a coincides with any one of the intermittent wiping position INT, piper-off position OFF, low-speed wiping position LO, and high-speed wiping position HI.
By rotating the knob 16 in this manner, the operating shaft 1
5 is rotated together with the knob 16 within the operating lever 3, and the pin 30 inserted into the through hole 28 at the tip of the operating shaft 15 is rotated within the notch 29 provided in the extension member 5 of the operating lever 3. Therefore, the gear body 20 is also rotated by the same angle as the knob 16 via the slotted groove 24 by this pin 30. As a result, the sliding member 34 meshed with the gear portion 21 of the gear body 20 via the rack 35 is slid by an amount corresponding to the rotation angle of the gear body 20, and the sliding contact piece 38 provided thereon, 39
slides on the fixed contact piece group 36, and its pair of sliding contact pieces 38 and 39 move in the ranges (INT), (OFF), () shown in FIG. L.O.)
and (HI).
Although the wiring diagram is omitted, the wiper is stopped at the section (OFF) position, reciprocated at low speed at the (LO) position, reciprocated at high speed at the (HI) position, and reciprocated once at the (INT) position. The motion is repeated after a certain pause. In addition, with the knob 16 set to a desired position, the knob 16 can be moved to the left in FIG. 2 along the axial direction of the operating lever 3 against the elastic force of the compression coil spring 19. When pressed, the operating shaft 15 moves to the left within the operating lever 3 along with the pin 30, so the gear body 20
The pin 30 resists the elastic force of the compression coil spring 26.
The shaft 22 presses the movable contact piece 43a through the through hole 27 and brings it into contact with the fixed contact piece 49. Then, a detergent spraying device (not shown) is activated and detergent is sprayed onto the windshield of the automobile.

As described above, move the operating lever 3 in the up and down direction (first
Even if the direction indication is switched by rotating in the clockwise and counterclockwise directions in the figure, the daylight switching and passing display are also performed by rotating in the forward and backward directions (clockwise and counterclockwise in the figure 2). Even when the operation is performed, the operating lever 3 and the gear body 20 are connected by the connecting means 31 that includes the slot groove 24, the through hole 28 of the operating shaft 15 inserted through the operating lever 3, and the pin 30. , the rotational displacement of the operating lever 3 is not transmitted to the gear body 20 in any way;
Only the rotational displacement of the operating shaft 15 by the knob 16 is transmitted to. In this case, the operating shaft 15 and the gear body 20
Since the connecting means 31 that connects the two is composed of one pin 30 attached to the operating shaft 15, and the slotted groove 24 and the convex curved surface portion 24a formed in the gear body 20, the connecting means 31 as a whole The number of parts is extremely small and the configuration is extremely simple, which reduces assembly variation, greatly reduces rattling or malfunction of the connected parts after assembly, improves operability, and improves the number of parts. Processing and adjustment can also be simplified. On the other hand, with the conventional structure, a cam member is integrally provided at the tip of the operating shaft inserted into the operating lever, and when only a specific switch mechanism is operated by the rotational displacement of the cam member by the operating shaft, the operating lever is Since the cam member is displaced together with rotation, the cam member may be made into a special shape in order to prevent the above-mentioned specific switch mechanism from responding to the displacement, or the displacement between the cam member and the switch mechanism may be changed. Disadvantages are that the transmission mechanism needs to be devised, and the structure of the connecting means becomes complicated, resulting in increased rattling or malfunction of the connecting part after assembly, and troublesome processing and adjustment of parts. It was hot. In particular, according to the embodiment described above, the sliding member 34 having the sliding contact pieces 38, 39 is linearly reciprocated by the gear body 20 rotated by the operating shaft 15, so that the sliding member 34 having the sliding contact pieces 38, 39 is linearly reciprocated. Compared to the conventional system in which a cam member is integrally provided on the operating shaft, the present invention has the advantage that a longer switch switching stroke can be obtained and the number of switching selections can be increased.

It should be noted that the present invention is not limited to the above-mentioned embodiments. For example, the gear body 20 may be a contact drum in which sliding contacts are implanted on a contact plate, and this constitutes a part of a rotary switch. It doesn't matter if you do that.

As described above, the present invention enables four types of switch mechanisms to be operated by a combination of an operating lever and an operating shaft inserted through the operating lever, in which the operating shaft and the rotating member for controlling the switch are connected. The connecting means consists of a pin provided on the operating shaft, and a slotted groove and a convex curved surface formed on the rotating member for controlling the switch, so the number of parts for the connecting means as a whole is extremely small and the construction is extremely simple. Become,
Accordingly, it is possible to provide a lever switch for a vehicle in which assembly variations are reduced, and rattling or malfunction of the connecting portion after assembly can be significantly reduced, and processing and adjustment of parts is also simplified. It is.

[Brief explanation of the drawing]

The drawings are for explaining one embodiment of the present invention, and FIG. 1 is a front view, FIG. 2 is a cross-sectional view taken along the line - in FIG. 1, FIG. 3 is a rear view, and FIG. Similarly, the rear view is shown with the electronic control circuit unit and switch box removed, FIG. 5 is an enlarged exploded perspective view of the cross-shaft joint part, FIG. It is an explanatory view of the operation of the second switch mechanism. In the figure, 3...operation lever, 5...extension member, 6
... Lever holding member, 7 ... Hollow shaft, 9 ... Shaft,
15... Operating shaft, 16... Knob, 20... Gear body (rotating member for switch control), 21... Gear part, 2
2...Shaft, 23...Boss part, 24...Slot groove,
24a...Protruding curved surface portion, 28...Through hole, 29...Notch portion, 30...Pin, 31...Connection means, 32...
...First switch mechanism, 33... Second switch mechanism, 34... Sliding member, 35... Rack, 36
...Fixed contact piece group, 38, 39...Sliding contact piece, 50
...It is a switch operating rod.

Claims (1)

[Claims] 1. An operating lever that is rotatable in two directions about two orthogonal rotational center lines and that can operate two types of switch mechanisms by rotating the operating lever; One is an operating shaft that is inserted through the operating shaft so that it can be pushed in, and the other two types are located on the pushing direction side of this operating shaft so that it can be pushed in and rotated in a direction perpendicular to the pushing direction. A rotary member for controlling a switch capable of operating a switch mechanism, and a connecting means for connecting the rotary member for controlling a switch and the operating shaft, the connecting means being connected to the tip of the operating shaft on the pushing direction side. a pin provided so as to coincide with either one of the rotational center lines of the operating lever; and a slit-shaped pin provided in the switch control rotating member that opens toward a side opposite to the pushing direction, into which the pin is inserted. a slotted groove for transmitting the rotation of the pin in response to the rotational operation of the operating shaft to the switch control rotating member; 1. A lever switch for a vehicle, comprising a convex curved surface portion that allows the pin to tilt.