JPS6242592Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a turn signal operating device for a vehicle that is convenient for not only indicating right and left turns but also indicating lane changes. The purpose is to provide a device that can reliably and automatically cancel the display even when the switch is returned to its original position, and that can be freely designed without being restricted by the arrangement of switches.

An embodiment of the present invention will be described below with reference to the drawings. First, in FIGS. 1 to 3, 1 is a base body, and a hole 2 is formed in the center of the base body. A steering shaft 6 to which a cylindrical cancel cam 5 having, for example, two large protrusions 3 and ten small protrusions 4 protruding at equal intervals, is fixed is passed through the hole 2, and the base body 1 is assembled. The above-mentioned cancel cam 5 is installed in the center of the cam. Reference numeral 7 denotes an annular bracket surrounding the cancel cam 5 and disposed on the base body 1. At the center of one side (right side in the figure), a pair of support walls 8 are provided on the upper surface, and a shaft is provided on the lower surface. The shaft portion 9 is inserted into the hole 10 formed on the right side of the hole 2 of the base body 1, for example, elastically.
Further, the base end of an operating lever 11 is positioned between the supporting walls 8 and pivotally connected by a shaft pin 12, so that the operating lever 11 is attached to the base body 1 by means of a bracket 7 at a position R in FIG. It is designed to be able to rotate around the shaft portion 9 from the right turn operation position indicated by L to the left turn operation position indicated by L. In addition, the operating lever 11 also rotates around a shaft pin 12, 13 is a moderation mechanism that moderates the rotation, 14 is a moderation plate thereof, 15
is a moderation ball, and 16 is a spring. Furthermore, 17 is a switch for displaying a daimer or passing in response to the rotation of the operating lever 11 about the shaft pin 12. On the other hand, 18 is a cylindrical part formed in the center of the other side (left side in the figure) of the bracket 7, 19 is an eaves part extending from the cylindrical part 18 in the direction of the hole 2, and 20 is a cylindrical part formed therein. The base body 1 has a recessed portion 21a at a slightly inner side of the recessed groove 20, that is, on both ends of the bracket 7. The cam surface 21 is formed almost completely across both the front and rear sides of the base body 1. Reference numeral 22 designates a canceller ratchet having claw portions 22a and leg portions 22b at both ends, which is placed entirely on the bracket 7 and placed below the eaves portion 19, and at the same time, its leg portions 22b are respectively inserted into the recesses. From the groove 20 to the cam surface 21 on the base body 1
Further, a spring 23 and a moderation ball 24 are housed in the cylindrical portion 18, so that the cancell ratchet 22 is placed on the cancel cam 5 side, while the moderation ball 24 is placed on the opposite side. The cancel cam 5 side is energized to fire, respectively. Reference numeral 25 denotes a moderation ridge protruding from the left edge of the base body 1, which has the deepest recess 25a at the center of its inner surface and the next deepest recesses 25b at both ends.
and the shallowest recess 25d is formed at the top of the protrusion 25c between them. Incidentally, 26 indicates the above-mentioned moderation ridge 25 of the base body 1 and the above-mentioned cam surface 2.
27 is an elongated hole formed between the elongated hole 26 and the elongated hole 26, which responds to the rotation of the bracket 7 and, in turn, to the rotation of the operating lever 11, via a passive piece 28 that projects upward through the elongated hole 26. This is a turn signal (lamp) switch disposed on the lower left side of the base body 1.

Now, in the case of this embodiment configured as above,
First, when the operating lever 11 is in the neutral position between the right-turn operating position and the left-turn operating position (N in FIG. The claw portions 22a are in contact with the surface and are separated from both the large protrusion 3 and the small protrusion 4 of the cancel cam 5, respectively,
This state is maintained by the moderation ball 24 being locked in the recess 25a at the center of the moderation crest 25, and therefore, at this time, the steering shaft 6
Even if the cancel cam 5 is rotated by operating a steering wheel (not shown) attached to the
No surrounding parts are moved.

On the other hand, when the operating lever 11 is now rotated to the intermediate operating position (R' in the figure) between the neutral position and the right turn operating position as shown in FIG. It climbs the convex part 25c on one side (upper side in the figure) and is locked in the concave part 25d at the top, and as a result, the leg part 22b is moved to the cam surface 2.
The canceller latch 22, which moves upward in the figure along the line 1, is simultaneously pushed in via the spring 23 by the height of the convex part 25c to the concave part 25d, and moves one leg part 22b (lower part in the figure) to the cam surface. 21 into the concave portion 21a, and the claw portion 22a on one side (lower in the figure) swings to a position where it engages both the large protrusion 3 and the small protrusion 4 of the cancel cam 5 and is held there. During this turn, the switch 27 is also operated as the bracket 7 is rotated, thereby operating the blinker indicating a right turn. At this time, while the steering wheel is operated in the same direction as the operation lever 11 (clockwise in this case), the small protrusion 4 and the large protrusion 3 of the cancel cam 5 are engaged with the claw portion 22 of the canceller ratchet 22.
Each time you kick ``a'', the cancell ratchet 22 simply swings to escape, but if you operate the steering wheel in the opposite direction (counterclockwise in this case) to the operating lever 11, the cancel cam 5 is the small protrusion 4 closest to the claw portion 22a.
Alternatively, the large protrusion 3 is hooked on the claw portion 22a to return the entire canceller latch 22, and the bracket 7, moderation ball 24, and operating lever 11 are also returned to their neutral positions. Then, the switch 27 returns the right turn indication turn signal to the non-indication state. Furthermore, the above applies even when the operating lever 11 is rotated to the intermediate operating position (L' in the figure) between the neutral position and the left-turn operating position, and the steering wheel is operated in the same direction and then in the opposite direction. Similarly, although the direction is different, the content is exactly the same as above, and such an operation is effective when changing lanes while the vehicle is moving. There is no need to continue operating the vehicle once it reaches the operation position, and the release of the operation is reliably and automatically performed by a slight return operation of the steering wheel after changing lanes. There is no need to go through the trouble of putting it back together.

Then, when the operation lever 11 is rotated to the right-turn operation position R as shown in FIG. Accordingly, the cancel latch 22 causes the one leg 22b to escape from the one concave portion 21a of the cam surface 21 and transfer to the other adjacent high surface. The claw portion 22a of the latch 22 is slightly separated from the cancel cam 5, and the separated cancell ratch 22 comes to engage only the large protrusion 3 of the cancel cam 5 with one of the claw portions 22a. Further, as the folding bracket 7 rotates, the switch 27 operates to operate the turn signal for indicating a left turn, as described above. After the operation, while the steering wheel is operated in the same direction as the operation lever 11 (counterclockwise in this case), only the large protrusion 3 of the cancel cam 5 kicks the pawl 22a of the canceller ratchet 22. The cancell latch 22 only swings to escape each time, and on the other hand, when the steering wheel is operated in the opposite direction (clockwise in this case) to the operating lever 11, the cancell cam 5 is moved into the claw portion 22a. The entire canceller latch 22 is returned by hooking the large protrusion 5, and along with this, the bracket 7, moderation ball 24, and operating lever 11 are also returned to their previous neutral positions, and the switch 27 is set to the left turn position. Return the display blinker to the non-display state. Moreover, the above is the same even when the operation lever 11 is turned in the opposite direction to the left turn operation position L and the steering wheel is operated in the same direction and then in the opposite direction, and even if the directions are different, the contents are still the same as described above. This is exactly the same thing, and such an operation is effective not only when changing the vehicle as described above, but also when making a complete right or left turn.
In particular, it can be used without causing the problem of a slight return operation of the steering wheel during a right or left turn causing the operation that is still required to be canceled.

In order to obtain the above-mentioned effects, a conventional method has been proposed in which the bracket is separated into an operating lever side and a cancel ratchet side, which are elastically connected by a spring or the like, and the cancel ratchet is operated in two stages with each side of the separated bracket, i.e., to a position where it engages with both the large and small projections of the cancel cam, and to a position where it engages only with the large projection. However, with this method, one side of the bracket not only rotates by the operation of the operating lever, but also moves together with the cancel ratchet to the cancel cam side and the anti-cancel cam side, so that a switch that can only respond to a monotonous movement cannot be provided corresponding to one side of the bracket, and must be provided only on the remaining side. Furthermore, since another switch is often provided on the remaining side, a switch is not provided there, or even if one is provided, the method of providing it is difficult, resulting in a problem of a complicated design.

In this regard, according to the present embodiment, only the canceller latch 22 can be moved on the side of the canceler cam 5 and the side opposite to the canceler cam 5, and the bracket 7 does not need to be separated, and can be completed as a single unit.
Unlike the conventional concept described above, the switch 27 can also be installed on the canceller latch 22 side of the base body 1 without any problem, and therefore only the other switch 17 can be installed on the operation lever 11 side. This has the advantage that it does not impose any restrictions on the arrangement of the elements and allows for greater freedom in design.

As is clear from the embodiments described in detail above, the present invention provides a turn signal operating device for a vehicle that is convenient for not only indicating right and left turns but also indicating lane changes. The display can be reliably and automatically canceled even by a slight return operation of the steering wheel after the switch has been turned, and it has the excellent effect of allowing free design without being restricted by the arrangement of switches, etc.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view, Fig. 2 is a vertical sectional view, Fig. 3 is an exploded perspective view, and Figs. 4 and 5 show different operating states. FIG. In the figure, 1 is the base body, 3 is the large protrusion, 4 is the small protrusion, 5 is the cancel cam, 6 is the steering shaft, 7 is the bracket, 9 is the shaft, 11 is the operating lever, 20 is the groove, and 21 is the notch. Cam surface, 21a is a concave part, 22 is a cancel latch, 22a is a claw part, 22b is a leg part, 23 is a spring, 24 is a moderation ball, 25 is a moderation thread, 25a, 25b are concave parts, 25c is a convex part, 25d is a recess, and 27 is a switch.

Claims (1)

[Scope of utility model registration request] A base body is equipped with a cancel cam that has large and small protrusions around it in order to respond to steering operations, and a control lever is pivoted to this base body so that it can be rotated between the right and left turn operation positions. It has a bracket, a concave groove formed in the bracket, and a leg portion guided by a cam surface formed in the base body, and is supported by the bracket so as to swing toward the cancel cam side and toward the opposite side of the cancel cam. a spring that biases the cancell latch toward the canceler cam, a moderation ball that is biased by the spring toward the opposite side of the canceller latch, and a moderation ball that is biased toward the control lever. moderation ridges provided on the base body by machining concavities and convexities so as to lock at both right and left turn operation positions, a neutral position between them, and each intermediate operation position between the neutral position and both right and left turn operation positions; the cancel cam is spaced apart from both the large protrusion and the small protrusion of the cancel cam at the neutral position, and engages with both the large protrusion and the small protrusion at the intermediate operating position;
A turn signal operating device for a vehicle, characterized in that it is adapted to engage only with a large protrusion at both right and left turn operating positions.