JPS5846909Y2 - Turn signal switch - Google Patents

Description

[Detailed Description of the Invention] The present invention is applicable to automobiles and other vehicles (hereinafter simply referred to as "vehicles").

) related to a turn signal switch for displaying the direction of travel.

While driving these vehicles, when turning right or left, or changing lanes, it is necessary to notify the driver of the vehicle following that these maneuvers will be performed, but normally this notification is done by the driver. This is done by a turn signal switch and a direction indicator lamp that is flashed by the turn signal switch.

Therefore, as this known turn signal switch,
A setting plate is attached to a base plate having a moving body chamber so as to be rotatable between a neutral position and a rotating position indicating a right turn and a left turn, and the setting plate is hung in the left and right rotating positions. Provided with a locking device that can be stopped,
Further, a movable body having a sliding contact piece and a plurality of fixed contacts are provided in the movable body chamber, and the movable body is moved in accordance with the rotation of the setting plate, and the sliding contact piece is connected to the fixed contact via a contact bridge. Turn signal switches for vehicles that can be intercepted and turned off are well known and widely used.

To explain this more specifically, there is a setting plate rotatably added between a base plate having a movable body chamber and a rotary position corresponding to the end point of the movement in the left and right direction from the neutral position. a lever for rotating the setting plate; a locking device for locking the setting plate at the rotational position; and a locking device for locking the setting plate in response to a steering operation of the vehicle. a release device for releasing the lock and returning to the neutral position; a plurality of fixed contact pieces provided on the wall of the movable body chamber; and a release device slidably provided in the movable body chamber and responsive to the setting plate The fixed contact piece is moved between positions corresponding to the rotational position and the neutral position, and is selected from among the plurality of fixed contact pieces according to each position corresponding to the rotational position. Both of them consist of a movable body having a sliding contact piece that bridges a set of fixed contact pieces.

Therefore, when the driver of the vehicle intends to turn right or left, or change lanes, he operates the lever in advance, rotates the setting plate, closes the desired switch, and turns on the desired direction indicator lamp. It is also 0 to turn on the light and warn the driver of the following vehicle that the vehicle will be operated.

At this time, the setting plate is locked at the rotation position indicating a right turn or left turn, but when the driver completes the right turn or left turn bundle operation, the setting plate is automatically locked by the above-mentioned release device. It is released and the direction indicator lamp is turned off.

However, if the driver is simply changing lanes rather than turning right or left, the above-mentioned automatic return of the setting plate is not normally performed because the operating angle of the bundle is small, and the driver is therefore required to press the lever. It was necessary to manually return the setting plate to the neutral position.

However, it is often forgotten to reset the setting plate, and as a result, there have been cases where the vehicle has been driven straight for long distances with the direction indicator lamp turned on.

Therefore, even by bundle operation to change lanes,
A turn signal switch has been proposed that is equipped with a mechanism that allows the setting plate to return automatically.

However, this type of turn signal switch has a complicated structure and requires a large amount of play between the movement of the lever for operation and the opening/closing operation of the electrical contact portion of the switch.

It is desirable to make the lever operating angle for lane change indication as small as possible, and it is necessary to reliably control the opening and closing of the switch at this small lever operating angle, so the large play mentioned above is important. This is a drawback.

The housing is configured so that the direction indicator lamp is lit at an intermediate position between the neutral position and the rotational position of the setting plate, and when the lever is released at the intermediate position, the lever or the setting plate is turned on. It has been proposed to configure the device so that it automatically returns elastically to the neutral position.

However, this type of turn signal switch has
There is a problem in that it is difficult to make the driver reliably recognize whether the lever has reached the intermediate position, in other words, whether the direction indicator lamp is lit or not, based only on the feel of the lever when operating it. .

The present invention has been made in view of the above, and its purpose is to establish an intermediate position between the neutral position and the left and right rotational positions of the setting plate, and to When the lever reaches the intermediate position, the desired direction indicator lamp is turned on, and when the lever reaches the intermediate position, the direction indicator lamp is turned on while giving a certain lick to the driver. To provide a turn signal switch in which the lever and the setting plate immediately return to the neutral position and the direction indicator lamp is turned off when the driver releases the lever at the intermediate position. .

Then, set the above setting plate to the above rotation position #1.
When the setting plate is rotated, the setting plate is locked by the locking device, and when a right turn or left turn lever operation is performed, the release device is activated to release the locking of the setting plate. Of course.

The object of the present invention is to press the button in the intermediate position to initiate contact between the slide contact piece of the movable body and the identified contact piece to be bridged, and to A step part is provided on the movable body, and a notch ball is provided on the movable body, and when the setting plate reaches the intermediate position, the notch ball is brought into contact with the step part. .

Hereinafter, the details of the present invention will be explained with reference to the drawings.

Fig. 1 is a top view showing one embodiment of the turn signal switch according to the present invention, Fig. 2 is a sectional view taken along the line A in Fig. The sectional view taken along line B-B in the figure, and Figures 5 and 10 below are explanatory diagrams of the operating state, and Figures 5 and 6 are respectively when the lever is in the neutral position (NO position in Figure 1). 2, FIGS. 7 and 8 are similar sectional views to the above when the lever is in the intermediate position (MO or MO position), and FIGS. Figure 10 shows the lever in the rotating position (same SO
It is a cross-sectional view similar to that shown in -4- when it is in the position (S'O position or S'O position), and in the figure, 1 is a mounting hole 1a in the center...
2 is an annular setting plate having a tubular shaft-like protrusion 2a rotatably inserted into a shaft hole 1b provided in the board 1, and 3 is a setting plate. a lever for rotating the plate 2; 4 has a chain-shaped cam surface; and a cancel cam that is locked to the hook portions 2b, 2b of the setting plate 2; 5 has a chain-shaped cam surface of the cancel cam 4; Locking moderation piece, 6
7 is a moderation piece guide attached to the board 1; 7 is a locking spring interposed between the moderation piece 5 inside the moderation piece guide 6 and constantly pressing the moderation piece 5 against the chain-shaped cam surface of the cancel cam 4; , 8 is a movable body that is installed in a movable body chamber 1c provided in the substrate 1, and is moved by the setting plate 2 through a long hole guide 1ciK drilled in the substrate 1; 9 is a small hole in the movable body 8; a spring which is inserted into the ball 8a together with the ball 10 and which holds the non-chip ball;
Reference numeral 11 is provided together with a slide contact piece 12 in a slide contact chamber 8b provided in the movable body 8, and the slide contact piece 12 is always brought into contact with a pole plate 13 attached to the base plate 1 in order to close the movable body chamber 1c. A sliding contact piece spring, 14, 15 and 16 are fixed contact pieces fixed to the electrode plate 13, 17 and 18 are direction indicator lamps, and 19 is a power source.

1. In Figure 2, 20 is a pin that pivots on the setting plate 2 so that the lever 3 can be moved up and down, and 21 is the lever 3.
A spring 23 is inserted into a small hole 3a provided at the tip of the lever 3 along with a ball 22 for moderating the vertical movement of the lever, and a spring 23 is used to bring the ball 22 into contact with the vertical movement moderation cam surface 2c of the setting plate 2. These are switches that are controlled to open and close depending on the user's movements, but since these are unrelated to the gist of the present invention, a detailed explanation will be omitted.

As seen diagonally above, the board 1 has a mounting hole 1a1, a shaft hole 1b into which the tubular shaft-like protrusion 2a of the setting plate 2 is inserted, a movable body chamber 1c that accommodates the movable body 8, and a shaft-like protrusion 8c of the movable body 8. A long hole guide 1d is provided to be inserted through the hole.

A portion 1e of the movable body interior wall is connected to the same 1.
The spring 9 and the ball 10 inserted into the small hole 8a provided in the movable body 8 constitute a notsuna ball that comes into contact with the inner wall surface.

That is, the ball 10 is constantly brought into contact with the inner wall surface by the elastic force of the spring 9, and rolls on the inner wall surface when the movable body 8 is moved by rotation of the setting plate 2.

Further, the board 1 has protrusions 6a and 6 of the moderation piece guide 6.
Hooks 1h-1h are provided for hanging a.

The setting plate 2 pivots a lever 3 by means of a pin 20, and the setting plate 2 is arranged at a position 5o-so in FIG.
It can be rotated within an angular range reduced by .

There is a hook part 2b on the setting plate 2.
, 2b are locking projections 4f of the cancel cam 4, 4f
A gripping portion 2d is provided to grip the shaft-like protrusion 8° of the movable body 8 passing through the elongated hole guide 1d of the substrate 1 on the upper surface of the substrate 1.

The cross section of the gripping portion 2d and the shaft-shaped protrusion 8c is as shown in FIG.

The cancel cam 4 has a chain-shaped cam surface, with the central valley being 4a, the slopes on both sides being 4b, and the top of 4b' being 4.
ct4c', its outer slopes are 4d, 4d'.

Previously, canceling protrusions 4e, 4e and locking protrusions 4f, 4f were provided at both ends thereof.

The moderation piece 5 is connected to the moderation piece guide 6 together with the spring I.
The moderation piece guide 6 is accommodated in the internal hole 6b of the board 1, and the moderation piece guide 6 is hooked to the hook portions 1h, lh of the base plate 1 by its protrusions 6a, 6a.

The moderation piece 5 is pressed by a flat guide 5b and a semicircular cam surface 5c at one end, and the flat guide 5b is brought into contact with the soil surface of the cancel cam 4, and the semicircular cam surface 5
c comes into contact with the chain-shaped cam surface of the cancel cam 4 and is pressed by the tension of the spring 7.

The semicircular cam surface 5c of the moderation piece 5 is located at the central trough 4a of the cancel cam 4 when the lever 3 is in the neutral position shown as NO in FIG. When the lever 3 is switched to the intermediate position shown in , it comes into contact with the slope 4b or 4b', and furthermore, the lever 3
When it is switched to the rotational position shown as SO or S2O in the same figure, it goes beyond the top 4o or 4c' and the outer slope 4d
Or it is brought into contact with 4 d'.

When the lever 3 is released at the intermediate position, the setting plate 2 and the lever 3 are immediately and automatically returned to the neutral position by the tension of the spring 7. When the setting plate 2 and the lever 3 are moved to the rotational position indicated above, even if the lever 3 is released, the setting plate 2 and the lever 3 can immediately and automatically return to the neutral position. It is something.

When the driver completes the steering operation for turning right or left, the self-cancelling pin (not shown) provided on the steering wheel shaft comes into contact with the canceling protrusion 4e of the cancel cam 4, and the setting is completed. Plate 2 and lever 3 are automatically returned to their neutral positions.

The board 1 is provided with a movable body chamber 1c that accommodates the movable body 8, the spring 11 for the slide contact piece 12, and the slider contact piece 12.
In this embodiment, it is a downward opening.

) is provided with fixed contact pieces 14, 15 and 16, which are bridged by a sliding contact piece 12.
is provided.

The fixed contact piece 14 is connected to the direction indicator lamps 17 and 18 via the power source 19, and the fixed contact pieces 15 and 16 are directly connected to the direction indicator lamps 17 and 18.

The shaft-shaped protrusion 8c of the movable body 8 passes through the elongated hole guide 1d of the substrate 1, and the grip portion 2d of the setting plate 2 is attached to the outside thereof.
It is configured to slide within the movable body chamber 1c guided by the long hole guide 1d provided in the base plate 1 in response to the movement of the setting plate 2 which is gripped by the user and pressed by the button.

The slide contact piece 12 in the slide contact chamber 8b of the movable body 8 is brought into contact with the pole plate 13 or the fixed contact piece 14, 15 or 16 provided on the pole plate 13 by the slide contact spring.

On the other hand, as mentioned above, the movable body 8 is provided with a small hole 8a,
Inserted into the small hole 8a are a spring 9 and a ball 10 which operate as a notch ball in cooperation with the movable internal walls 1° and 1g and the stepped portion 1f therebetween.

That is, the ball 10 is always brought into contact with the inner wall surfaces 1°, 1f, or 13 of the movable body chamber 1° due to the tension of the spring 9, and when the movable body 8 moves, it rolls on these inner wall surfaces. move.

At that time, when the ball 10 is rolling on the flat inner wall surface 1o, the notched ball does not apply particularly large resistance to the movable body 8, but the ball 10 is rolling on the stepped portion 1o.
When moving over f and moving onto the inner wall surface 1g, the movable body 8
A large resistance force acts on the ball 10, and the operator must use the lever 3 etc. to move the movable body 8 against this large resistance force. When the ball starts rolling on the flat inner wall surface 1g, this large resistance force disappears.

The relationship between the stepped portion 1f and the notch ball, and the relationship between the slide contact piece 12 and the fixed contact pieces 14, 15 and 16 will be explained with reference to FIGS. 5 to 10.

When the lever 3 is in the neutral position shown by NO in FIG. 1, the movable body 8 and the like are in the relative positions as shown in FIGS. 1
5 or 16, therefore direction indicator lamps 17 and 18 are not lit, and the ball 10 is not in contact with the ball 10.
is brought into contact with the inner wall surface 1e of the movable body chamber 1o.

When the lever 3 moves from the neutral position shown as NO in FIG. 1 to the intermediate position shown as MO, for example, the movable body 8 etc.
It is moved to the position shown in FIGS.

That is, the sliding contact piece 12 bridges the fixed contact pieces 14 and 15, so that the direction indicator lamp 17 lights up.
On the other hand, the ball 10 is brought into contact with the inner wall stepped portion 1f of the movable body chamber 1c.

When the lever 3 moves from the neutral position to the intermediate position,
As mentioned above, the slope 4b of the cancel cam 4 is the moderation piece 5.
The required torque of the lever is gradually increased by pressing and compressing the spring 7, but the required torque is continuously increased, and therefore, if the notch ball and the inner wall step portion 1f are not provided, The operator of the lever 3 must ensure that the lever 3 reaches the intermediate position and the direction indicator lamp 17
Or, it is difficult to confirm that 18 is lit.

However, according to the present invention, when the lever 3 reaches the intermediate position and either direction indicator rung 17 or 18 lights up, the ball 10 comes into contact with the inner wall step 1f, so the operator of the lever 3 has to operate the lever 3 appropriately. The user can sense a sense of resistance or a click, and therefore can recognize that the lever 3 has definitely reached the intermediate position.

When the lever 3 is further rotated to the left and right rotational position 'R4 shown in FIG. 1 SO, the movable body 8 and the like are moved to the relative positions shown in FIGS. 9 and 10.

During this time, the fixed contact pieces 14 and 15 are still bridged by the sliding contact piece 12, the direction indicator lamp 17 is kept lit, and the stepped portion 1f of the ball 10 movable body chamber
, and is press-fitted into the small hole 8a of the movable body 8, and as mentioned above, the cancel cam 4 is latched to the rotating position by the moderation piece 5, and then after the bundle operation of turning right or turning left is performed. It is forced to return to the neutral position.

Since the present invention is constructed in a diagonal manner, when using the present invention, the driver can notify the following vehicle of a lane change by holding the lever 3 in the intermediate position shown by MO or M'O in Figure 1. It can be done easily and reliably, and lever 3
The fact that the lever has reached the intermediate position can be reliably sensed by the action of the notch ball and the stepped portion 1f, and furthermore, when the driver releases the lever 3, the lever 3 immediately and automatically returns to the neutral position. In addition, the driver can easily and reliably notify the left or right turn by turning and locking the lever 3 at the right or left turn position 1, and in this case, the driver can notify the driver of the left or right turn by turning the lever 3 at the right or left turn position 1. Since the lever 3 automatically returns to the neutral position, in any of the above cases, it is possible to give a sure warning to the following vehicle about driving operations, and to drive a long distance with the direction indicator lamp turned on. This is something that can definitely be prevented.

Incidentally, the configuration of the present invention is not limited to the diagonal embodiment; for example, the slide contact piece 12 and the slide contact piece 1
The spring 11 for 2 can be replaced by a leaf spring type contact piece attached to the movable body 8, and the movable body chamber 1c can also have a circular arc cross section instead of the rectangular cross section as shown in the figure. f.

The shapes of the spring 9 and the hole 10, the attachment parts, etc. can be freely changed within the scope of the purpose of the present invention.

[Brief explanation of drawings]

Fig. 1: A top view showing an embodiment of the turn signal switch according to the present invention, Fig. 2: A cross-sectional view of Fig. 1, Fig. 3: 3D exploded view, Fig. 4 ...B in Figure 2
-B sectional view, Figure 5...C-C sectional view in Figure 2 when the lever is in the neutral position, Figure 6...D-D in Figure 2 when the lever is in the neutral position Cross-sectional view, Figure 1...Cross-sectional view taken along line C-C in Figure 2 when the lever is in the intermediate position, Figure 8...D- in Figure 2 when the lever is in the intermediate position
D sectional view, Fig. 9...C-C sectional view in Fig. 2 when the lever is in the rotating position, Fig. 10... D- in Fig. 2 when the lever is in the rotating position D sectional view, 1... Board, 1c... Movable body chamber, 1e, 1g...
Movable body interior wall, 1f...stepped portion, 2...setting plate, 3...lever, 4...cancel cam, 5...moderation piece, 6...moderation piece guide, 8
...Movable body, 8a...Small hole, 9...Spring,
10...Ball, 12...Slide contact piece, 13.
...Pole plate, 14,1516...Fixed contact, 17,18
...Direction indicator lamp.

Claims (1)

[Scope of Claim for Utility Model Registration] A board having a movable body chamber, a setting plate attached to the board so as to be rotatable in the left and right directions from the neutral position, and a setting plate that is attached to the board so as to be rotatable in the left and right directions from the neutral position. a locking device capable of being latched in a moving position; a movable body having a sliding contact piece and disposed within the movable body chamber to interlock with the setting plate; In a vehicle turn signal switch having a fixed contact placed in a movable body chamber to contact and close the left and right turn signal circuits, a left and right intermediate position is provided between the neutral position and the left and right rotational positions, respectively. and when the movable body reaches the intermediate position between the left and right sides, the sliding contact piece intercepts the left and right turn signal circuits to close them, and the buttons are pressed to the intermediate position between the left and right sides to engage with each other. In the turn signal switch for a vehicle, the movable body is provided with a nonna ball, and the interior wall of the movable body is provided with a stepped portion.