JPH035357B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a starting device for an outboard motor.

[Prior Art] In an outboard motor, the end face of a wire guide supported by the engine unit is exposed to a window provided in a cowling that is covered with the engine unit, and the wire guide is connected to a recoil starter and is connected to the inside of the wire guide. A starter device is used in which a starter knob of a starter wire, which can be guided by the starter wire and pulled out to the outside of the cowling, can be stopped while the end surface of the starter knob is brought into contact with the end surface of the wire guide.

[Problems to be Solved by the Invention] However, conventionally, when the starter knob is pulled back from its drawn-out state at an arbitrary angular position that rotates freely around its own axis, it comes into contact with the wire guide and remains at that angular position. It's becoming possible.

Therefore, in the above conventional starting device,
It is necessary to know which starter knobs are in different stopping positions each time the starter is operated, which makes it difficult to speed up the starter operation.

The present invention always automatically stores the starter knob in a predetermined retracted position positioned in the wire guide even when the starter knob is pulled back from its drawn-out state at an angular position in which it freely rotates around its own axis. The purpose is to improve the operability of the starter knob.

[Means for Solving the Problems] The present invention provides an end face of a wire guide supported by the engine unit facing a window provided in a cowling that is covered with the engine unit, and a wire guide connected to a recoil starter. In a starting device for an outboard motor, a starter knob of a starter wire that is guided within a guide and can be pulled out to the outside of a cowling can be stopped in a state where an end face of the starter knob is in contact with an end face of the wire guide. , a cam-like engagement surface having a protrusion and a recess is provided around the starter wire shaft on the end surface of the starter knob, and a cam-like engagement surface having a protrusion and a recess around the starter wire guide portion on the end surface of the wire guide. each of the cam-like engagement surfaces includes a protruding curved surface that rotates while being mutually guided under the action of the wire return force of the recoil starter when the protrusions of the two protrusions abut each other;
When one protrusion is housed in the other recess, the two protrusions are configured to stay together.

[Function] When the starter knob is pulled back from its extended position at any angular position where it has freely rotated around its own axis, when the protrusions of both the starter knob and the guide wire abut each other, the recoil starter's wire returns. Under the action of a force, they rotate relative to each other while being mutually guided by both curved surfaces, and are eventually stabilized in a stationary state in which the protrusions on one side are respectively accommodated in the recesses on the other side. Therefore, the starter knob is always automatically stored in a predetermined storage position that is positioned on the wire guide, so that the starter knob remains in a uniform posture, and the operability of the starter knob can be improved.

[Example] Fig. 1 is a side view showing an outboard motor to which the present invention is applied, Fig. 2 is a sectional view showing an enlarged main part of Fig. 1, and Fig. 3 is a side view showing an outboard motor to which the present invention is applied. FIG. 4 is a perspective view showing the wire guide and starter knob taken out from FIG. 2.

A clamp bracket 1 is attached to the stern plate 11 of the hull.
2. A propulsion unit 14 is supported via a swivel bracket 13. A bottom cowling 15 is fixed to the upper part of the propulsion unit 14, and a top cowling 16 is removably mounted on the bottom cowling 15. An engine unit 17 mounted on the upper part of the propulsion unit 14 is housed in the cowling formed by the bottom cowling 15 and the top cowling 16, and the engine unit 17 allows a propeller 18 to rotate.

A recoil starter 19 is disposed above the engine unit 17, as shown in FIG. A wire guide 21 is supported on a frame 20 of the recoil starter 19. The end face 22 of the wire guide 21 is arranged at a position facing the window 23 of the top cowling 16 in the installed state. As shown in FIG. 3, the window portion 23 has the shape of a long hole that is elongated in the horizontal direction. In addition, the wire guide 21
A sealing member 25 is attached to the top cowling 16, which tightly contacts the sealing member 24 attached to the window 23 of the top cowling 16 when the top cowling 16 is installed. Prevents engine noise from being emitted to the outside.

Further, a guide pipe 26 is fixed to the center of the wire guide 21, and the guide pipe 26 is connected to the recoil starter 19, and the wheel 2 is connected to the guide pipe 26.
A starter wire 28 wound around the cowling 7 is guided so that it can be pulled out from the cowling. A starter knob 29 is connected to the lead-out end of the starter wire 28. The starter knob 29 has a grip portion 3
0, and its end face 31 is connected to the recoil starter 19.
It comes into contact with the end surface 22 of the wire guide 21 under the wire return action of , and is able to stay there. That is, the top cowling 16 is attached and detached by inserting and removing the window portion 23 from the starter knob 29.
In this installed state, the starter knob 29 can be arranged to protrude outside the cowling.

Further, in the above embodiment, a cam-shaped engagement surface having a protrusion 22A and a recess 22B is formed around the guide pipe 26 on the end surface 22 of the wire guide 21, and the starter wire 28 is formed on the end surface 31 of the starter knob 29. A cam-like engagement surface having a protruding portion 31A and a recessed portion 31B is formed around the axis. Here, both cam-like engagement surfaces have projecting curved surfaces that rotate while being mutually guided under the action of the wire return force of the recoil starter 19 when the projecting portions 22A and 31A of both are in contact with each other, and one When the protrusions 22A, 31A are housed in the other recesses 31B, 22B, they are configured to stay together. That is, the end surface 22 and the end surface 31 are given exactly the same uneven shape, and at a position where the two are relatively rotated by 90 degrees from the position where their protrusions 22A, 31A abut each other, they do not touch each other. Completely fitted and the recess 22
B can accommodate the protrusion 31A, and the recess 31B can accommodate the protrusion 22A.
B, the starter knob 29 stays stably relative to the wire guide 21, and as shown in FIG.
It is positioned horizontally in the same direction as the longitudinal direction.

Next, the operation of the above embodiment will be explained. As in FIG. 5, the recess 3 of the starter knob 29
When the starter knob 29 is pulled back from the pulled-out state in which the starter knob 29 faces the protruding part 22A of the wire guide 21 without any rotation about its own axis, one of the protruding parts 22A, 31
A is smoothly accommodated in the other recesses 31B and 22B, respectively, and the starter knob 29 remains in the state shown in FIG. On the other hand, as shown in FIG. 6, when the protrusions 31A and 22A of both the starter knob 29 and the wire guide 21 butt against each other, both are bent by the curved surface of the other under the action of the wire return force of the recoil starter 19. They rotate relative to each other while being guided by each other, and eventually one protrusion 22A,
31A is stabilized in the stationary state shown in FIG. 2, where it is accommodated in the other recesses 31B and 22B, respectively.

That is, according to the above embodiment, the starter knob 29 is always kept in the same position with respect to the wire guide 21, and the longitudinal direction of the starter knob 29 can always be aligned with the longitudinal direction of the cowling window 23. Therefore, even when the opening area of the window section 23 is narrowed in order to improve the sealing performance of the engine unit accommodation space by the top cowling 16, the longitudinal direction of the grip section 30 of the starter knob 29 is always aligned with the longitudinal direction of the window section 23. Since the directions match, it becomes possible to quickly and easily attach and detach the top cowling 16 without modifying the directionality of the grip portion 30. Further, when the grip portion 30 of the starter knob 29 is released after starting the engine, the starter knob 29 is always held in a position with the grip portion 30 in a fixed direction, so that the grip portion 30 can be grasped quickly the next time the engine is started. This makes it possible to improve the operability of the starter knob 29.

[Effects of the Invention] As described above, according to the present invention, even if the starter knob is pulled back from the drawn-out state at an angular position in which it is freely rotated around its own axis, the starter knob is always positioned in the wire guide. The starter knob can be automatically stored in a predetermined storage position, thereby improving operability of the starter knob.

[Brief explanation of drawings]

Fig. 1 is a side view showing an outboard motor to which the present invention is applied, Fig. 2 is an enlarged sectional view showing the main parts of Fig. 1, and Fig. 3 is a main part along the - line in Fig. 2. FIG. 4 is a perspective view showing the wire guide and starter knob shown in FIG. 2 taken out, and FIG. FIG. 6 is a side view showing a state in which the protruding part of the starter knob abuts against the protruding part of the wire guide. 15...Bottom cowling, 16...Top cowling, 17...Engine unit, 19...
Recoil starter, 21...Wire guide, 22
... end face, 22A ... protrusion, 22B ... recess,
23...Window part, 26...Guide pipe, 28...
Starter wire, 29...Starter knob, 31...
...End face, 31A... Protrusion, 31B... Recess.

Claims (1)

[Claims] 1 The end face of the wire guide supported by the engine unit is exposed to a window provided in the cowling that is covered with the engine unit, and the wire guide is connected to the recoil starter and guided inside the wire guide so that it can be pulled out to the outside of the cowling. In a starting device for an outboard motor, the starter knob of the starter wire can be stopped in a state where the end face of the starter knob is brought into contact with the end face of the wire guide. A cam-like engagement surface having a protrusion and a recess is provided, and a cam-like engagement surface having a protrusion and a recess is provided around the starter wire guide portion on the end surface of the wire guide, and both cam-like engagement surfaces Under the condition that the protrusions abut each other, the protruding curved surface rotates while being mutually guided under the action of the wire return force of the recoil starter, and under the condition that one protrusion is accommodated in the recess of the other. A starting device for an outboard motor, characterized in that it is configured to be mutually stopped.