JPS6241880Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an automatic restoration device for a direction indicator of a two-wheeled vehicle.

Conventionally, automatic restoring devices for turn signals on motorcycles have been used to operate the lever of the turn signal to turn on the indicator lamp, and after traveling a certain distance, automatically return the lever to the neutral rotation position. A device in which the indicator lamp is turned off is known, for example, the structure of the device disclosed in Japanese Utility Model Publication No. 56-12123 is as follows.

A rotating lever is supported in a direction indicator case so as to be freely swingable, and tension springs are provided on the left and right sides of a setting plate connected to the lever in the case near the operating end of the lever, and a stopper formed on the lever working end side of the setting plate can be engaged with a substantially V-shaped recessed member supported in the case by the biasing force of a spring provided on the front side of the recessed member, or disengaged against the biasing force of the spring. On the other hand, a gear connected to the recessed member by a connecting member is pivotally attached to the working end of the lever, and side gears are pivotally supported in the case on both sides of the gear, so that the side gears rotate synchronously with the worm shaft as the vehicle travels. Therefore, when the lever is swung to the rotation positions on both sides, the gear of the lever engages with one of the side gears and rotates together. Rotation of the gear moves the recessed member towards the inner end of the lever via the link member, disengaging the stopper, and the lever is returned to and stopped at the neutral rotation position by the biasing force of the tension spring.

However, the structure described above has a large number of parts,
Since the stopper is uncoupled by sliding the concave member, the structure becomes more complicated, and the lever is returned to the neutral rotation position using tension springs on both sides of the setting plate, which may lead to unreliability. There were some shortcomings.

The present invention was devised in view of the above-mentioned drawbacks, and does not require the provision of multiple springs for returning the lever to the neutral rotation position and for sliding the concave member as in the conventional device, and achieves the same result with fewer parts. It is an object of the present invention to provide an automatic restoring device for a direction indicator, which allows easy operation, has a simple structure, and allows a lever to reliably return to a neutral rotation position.

For this reason, the automatic restoration device for a turn signal according to the present invention has a moderation device in which a moderation piece supported on an operating lever is fitted into each of the three valleys of a moderation crest provided in a case using the biasing force of a spring. The lever is configured to stop when the lever is stopped, and includes a cancel member having a roughly V-shaped groove into which the moderation piece is fitted, and a cancel gear is rotatably supported at the inner end of the lever, and are connected by a link member, side gears that rotate in synchronization with the worm shaft are arranged on both sides of the cancel gear, and the lever is swung to each rotation position on both sides, so that the cancel gear meshes with the side gear, One end of the link member rotates around the axis of the cancel gear, and slides the cancel member pivotally connected to the other end of the link member so as to press against the moderation piece on one inclined surface of the groove,
The moderation piece is pushed out from each valley on both sides by one inclined surface of the groove of the cancel member, moved into the central valley and stopped, and the lever is returned to the neutral rotation position and stopped.

The present invention will be explained in detail below based on illustrated embodiments.

In FIGS. 1 and 2, 1 is a direction indicator case, 2 is an operating lever, and 3 is the operating lever 2.
A moderation device that stops at three rotational positions (rightward rotational position, neutral rotational position, leftward rotational position), 4 is a moderation device that stops the lever 2 at each rotational position (rightward rotational position or leftward rotational position) on both sides of the neutral rotational position (rightward rotational position or leftward rotational position). A switch 5 for turning on the direction indicator lamp is a worm shaft that rotates when the vehicle is driven. After rotating the lever 2 to the right or left rotation position, the switch 5 is turned on using the worm shaft 5 as the driving force. The rotational position is returned to the neutral rotation position.

The lever 2 is an elongated plate inserted into the case 1 from the outside, and its roughly central portion is swingably supported by a screw 6 on a support portion 1b that projects upward from the bottom surface 1a of the case 1. . A lever 2 that rotatably supports a cancel gear 7 is provided below the working end of the lever 2 located inside the case 1.
An operating knob 8 is fixed to the operating end of the controller. Further, a moderation device 3 is provided in the case 1 on the operating end side of the lever 2 of the support portion 1b, and a moderation device 3 is provided in the case 1 on the operating end side of the lever 2 of the support portion 1b.
are set up respectively.

The switch 4 has a lower surface of a switch body 4a fixed to a base part 1e projecting from the case bottom 1a, and a sliding switch knob 4b fixed to the lever 2. Then, by swinging the lever 2, the switch knob 4b is slid relative to the switch body 4a, and when the lever 2 is rotated to the right, the right direction indicator lamp is lit, and when the lever 2 is rotated to the left, the left direction indicator lamp is lit. That's what I do.

Further, the moderation device 3 has valleys 1c-A, peaks 1c-a, valleys 1c-B, peaks 1c-b, and valleys 1c-C on predetermined surfaces.
A top opening is formed on the moderation ridge 1d formed on the lever 2.
The lower half of the plate-shaped moderation piece 11 having a semicircular tip is brought into contact with the biasing force of the spring 10 from the front opening of the box-shaped storage case 9 attached to the lever 2 so as to cover the lower surface of the inner end of the lever 2. This is how it was done. That is, due to the biasing force of the spring 10, the moderation piece 1
The lower half of 1 always comes into contact with the back surface of the moderation ridge 1d and moves in and out of each valley 1c by swinging the lever 2, and when the lever 2 is in the right rotation position, it moves into and out of each valley 1c.
-C, and when in the neutral rotation position, the center valley 1c-B
In addition, when in the left rotation position, they fit into the right valleys 1c-A, respectively.

On the other hand, a V block-shaped cancel member 13 having a roughly V-shaped groove 12 consisting of a pair of inclined surfaces 12a and 12b is slidably provided on the upper surface of the moderation ridge 1d, and is slidably mounted on the moderation piece 11. The half portion is brought into contact with one inclined surface of the groove 12. Guide portions 13a and 13b projecting downward are formed on both side edges of the cancel member 13, respectively.
The cancel member 13 is fitted into guide grooves 14a and 14b formed on the upper surface of the lever d, so that the cancel member 13 can freely slide in the longitudinal direction of the lever 2 at the neutral rotation position.

Further, the cancel member 13 and the cancel gear 7 supported below the working end of the lever 2 are as follows:
They are connected by a link member 15. The link member 15 is a plate member having semicircular shapes at both ends, and one end thereof is pivotally connected to the lower surface of the cancel gear 7 by a pin 16 eccentrically from the axis of the cancel gear 7, while the other end is connected to the lower surface of the cancel gear 7 by a pin 16. Cancel member 13
A pin 1 integrally formed at the end opposite to the groove 12 of
It is pivoted to 3c. Therefore, when the cancel gear 7 rotates, the cancel member 13 slides on the upper surface of the moderation ridge portion 1d via the link member 15.

Further, below the cancel gear 7 at the working end of the lever 2, the worm shaft 5 is rotatably inserted into the case 1 via a cable holder 17, and below the worm shaft 5 is an auxiliary shaft. 18 are arranged such that each end thereof is rotatable relative to each case side surface 1f. The shaft 18 has a gear 18a that meshes with the worm shaft 5 at the center, and side worms 18b, 18b at both sides. Further, side gears 19, 19 are provided on both sides of the cancel gear 7 inside the case 1, respectively, so as to be rotatable with respect to the case bottom surface 1a, and are engaged with the side worms 18b, 18b of the shaft 18, respectively. Therefore, when the worm shaft 5 is rotated by a flexible wire (not shown) or the like as the vehicle travels,
Side gears 19, 19 are caused to rotate synchronously via the shaft 18.

In the above structure, when the lever 2 is swung from the neutral rotation position shown in FIG. 1 to the right rotation position as shown in FIG. While the lever 2 is fitted into the valley 1c-C and stopped, the cancel gear 7 below the active end of the lever 2 engages with one of the side gears 19, and the cancel gear 7 begins to rotate. As the cancel gear 7 rotates, one end of the link member 15 pivoted to the cancel gear 7 begins to rotate around the axis of the cancel gear 7, and the cancel member pivoted to the other end of the link member 15. 13 is slid approximately toward the operating end side of the lever 2. Therefore, the upper half of the moderation piece 11 is connected to the groove 12 of the cancel member 13.
one inclined surface 12b of the groove 12;
Further, as the link member 15 slides on the cancel member 13 due to the rotation of the cancel gear 7, the inclined surface 12b of the groove 12 of the cancel member 13 pushes the moderation piece 11 against the spring 10. Then, it is pushed out from within the valley 1c-C along the slope of the peak 1c-b. The pushed-out moderation piece 11 is guided by the inclined surface 12b of the groove 12 of the cancel member 13, and is fitted into the central valley 1c-B by the biasing force of the spring 10 and stopped, and at the same time, the lever 2 is moved to the neutral rotation position. rotate it to the side to return to the neutral rotation position.

Although the structure and operation of the apparatus according to the illustrated embodiment are as described above, the present invention is not limited to this embodiment, and can be implemented in various other forms.
For example, a hole may be formed in the cancel member at a predetermined location of the moderation ridge, instead of on the upper surface of the moderation ridge, and the cancel member may be slidable within the hole. Further, the method of connecting the cancel gear and the cancel member is not limited to the above embodiment, and may be any suitable means such as a rod shape. Further, although an auxiliary shaft is provided to facilitate deceleration when connecting the worm shaft and the side gear, the worm shaft and the side gear may be directly connected.

As described in detail in the above embodiment, the present invention stops the moderation device by fitting the moderation piece supported on the operating lever into the three valleys of the moderation peak provided in the case using the biasing force of the spring. In addition to configuring it as follows,
disposing a cancel member having a roughly V-shaped groove into which the moderation piece fits, while rotatably supporting a cancel gear on the inner end of the lever, and connecting the cancel member and the cancel gear with a link member; Furthermore, since side gears that rotate in synchronization with the worm shaft are arranged on both sides of the cancel gear, there is no need to provide a large number of springs for returning the lever to the neutral rotation position and for sliding the recessed member, unlike in the conventional device. , the number of parts is smaller and the structure is simpler. Also, at each rotational position on both sides of the lever, the moderation piece is pushed out from each valley on both sides against the biasing force of the spring by one inclined surface of the approximately V-shaped groove of the cancel member, moves into the central valley, and stops. Since the lever is returned to the neutral rotation position and stopped, the lever can be reliably returned from each rotation position to the neutral rotation position.

[Brief explanation of the drawing]

1 and 2 are a cross-sectional plan view and a cross-sectional side view, respectively, showing an automatic restoration device for a direction indicator according to an embodiment of the present invention, FIG. 3 is a perspective view of the main part of FIG. 1, and FIG. Fig. 1 is a cross-sectional plan view showing the state in which the lever is swung to the right rotation position, and Fig. 5 shows the state immediately before the cancel gear in Fig. 4 pushes up the link member and pushes the moderation piece out of the moderation valley by the cancel member. FIG. 1...Direction indicator case, 2...Operation lever,
3... Moderation device, 4... Switch, 5... Worm shaft, 7... Cancel gear, 10... Spring, 1
DESCRIPTION OF SYMBOLS 1... Moderation piece, 12... Groove, 13... Cancel member, 15... Link member, 19... Side gear.

Claims (1)

[Claim for Utility Model Registration] An operating lever inserted into the direction indicator case from the outside and supported so as to be swingable is stopped at three rotational positions by a moderation device, and a switch linked to the lever The right or left direction indicator lamp lights up when the lever is at both rotational positions relative to the neutral rotational position, while the lever is moved to the neutral rotational position using a worm shaft housed in the case as a driving force so as to be rotated by the drive of the vehicle. In the direction indicator, the moderation device is arranged so that the moderation piece supported on the operating lever is pushed into each of the three valleys formed between the peaks of the moderation crest provided in the case by the biasing force of a spring. A cancelle configured to fit and stop corresponding to each rotational position of the lever, has a roughly V-shaped groove into which the moderation piece fits, and is movable in the longitudinal direction of the lever at a neutral rotational position. A cancel gear is rotatably supported at the inner end of the operating lever, and one end of the link member is pivotally connected to the cancel gear eccentrically from the axis of the cancel gear, while the other end is pivoted to the cancel gear. By disposing side gears that are pivotally connected to the cancel member and rotate in synchronization with the worm shaft on both sides of the cancel gear, and by operating the lever to each rotational position on both sides, the cancel gear can be moved to one of the side gears. The cancel member is moved to the outer end of the lever through the link member by engaging and rotating, and the moderation piece is moved from each valley on both sides against the biasing force of the spring into a roughly V-shape of the cancel member. An automatic restoring device for a direction indicator, characterized in that the lever is pushed out by one inclined surface of the groove, moved to a central valley and stopped, and the lever is returned to a neutral rotation position and stopped.