JP2516597B2 - Outboard motor cowl assembly - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an outboard motor, and more particularly to a cowl assembly surrounding an engine or power head of an outboard motor.

BACKGROUND OF THE INVENTION Various types of outboard motor cowl assemblies are known in the art. A known cowl assembly includes a two-piece assembly having a lower cover that is permanently attached to the propulsion unit, an upper cover that is removably attached to the lower cover, and a removable two-component lower cover. , An upper cover detachably attached to the lower cover 3
A parts assembly, a two-parts assembly having left and right side covers removably attached to the propulsion unit, a lower cover permanently attached, an upper cover permanently attached, and a detachably attached A three-piece assembly having a "surrounding" intermediate cover.

The U.S. patent specification then discloses a cowl assembly for an outboard motor. That is, Walshew's 4,34th September 7, 1982
No. 8,194, Carley No. 2,256,831 dated September 23, 1941
No. 3,358,668 of Posts dated 19 December 1967, 1973 1
Ellingsen's No. 3,773,010, January 20, May 1976
No. 3,955,526 of Kussyuye, dated 11th.

(Problems to be Solved by the Invention) An object of the present invention is to provide a cowl assembly that simplifies attachment and detachment of a cowl assembly that houses a power head of an outboard motor, and that insulates the cowl assembly from vibration and noise of the power head. To provide a three-dimensional mounting device.

(Means for Solving the Problem) The present invention provides a rotatably mounted propeller having a front portion having a surface, a first side portion and a second side portion facing each other, and the propeller. Propulsion having a drive shaft housing including a drive shaft drivingly coupled thereto, a power head mounted on the drive shaft housing and including an internal combustion engine drive coupled to the drive shaft, and a cowl assembly housing the power head. In an outboard motor consisting of a unit, the cowl assembly has a first cowl member and a second cowl member, and the first cowl member is detachably and elastically attached to the first side portion of the propulsion unit. And a first hole having a substantially horizontal axis and supported by either the first cowl member or the first side portion behind the front portion of the propulsion unit. And the first cowl member A first elastic mounting member supported by the other of the first side portion behind the front portion of the propulsion unit and received in the first hole; and on the second side portion of the propulsion unit. A second device for releasably and elastically mounting the second cowl member has a substantially horizontal axis and the second cowl member and the second side portion behind the front portion of the propulsion unit. A second hole supported by either one of the second hole, the second cowl member and the second side portion behind the front portion of the propulsion unit, and the second hole is supported by the second hole and received by the second hole. A second resilient mounting member for releasing the first and second cowl members from each other to retain the first and second resilient mounting members in the first and second holes. An outboard motor provided with a device for possible coupling.

EXAMPLE An outboard motor 10 embodying the present invention is shown in the drawings.
As clearly shown in FIG. 1, the outboard motor 10 comprises a mounting assembly 11 which is rigidly attached to the aft beam 13 of the boat. The mounting assembly is pivotally attached to the aft beam bracket 15 for the pivotal movement of the aft beam bracket 15 that is rigidly attached to the aft beam 13 and the pivot bracket 17 relative to the aft beam bracket 15 about a generally horizontal tilt axis 19. It is equipped with a turning bracket 17.

Further, the outboard motor 10 has a swivel bracket 17 about a substantially vertical steering axis 21 and a swivel steering motion of the propulsion unit 12 with respect to the stern beam 13, and a common unit for the propulsion unit 12 and the swivel bracket 17 about the tilt axis 19. It is pivotally attached to the swing bracket 17 for its tilting movement.

The propulsion unit 12 has opposing first and second sides or left and right sides and, in the preferred embodiment, includes a drive shaft housing 16 and a rotatably mounted propeller 20. Preferably, drive shaft housing 16 includes main body portion 22.
An adapter unit 24 mounted on the main body portion 22 by a plurality of bolts 26, and a drive shaft 28 drivably coupled to the propeller 20. The propulsion unit also has a steering arm assembly 29 which is secured to the drive shaft housing 16 to effect a pivotal steering movement of the unit 12.
Further, the propulsion unit 12 includes a power head 30 having an internal combustion engine 34 drivably coupled to a drive shaft 28 and mounted on a drive shaft housing 16. In the preferred embodiment, the power head 30 is attached to the adapter unit by a plurality of bolts 32.
Mounted on 24. Further, the drive shaft housing 16 and the power head 30 have a first side and a second side or a left side and a right side facing each other.

The outboard motor 10 also surrounds the power head 30 and, in the preferred embodiment, the adapter unit 24 and drive shaft housing.
A cowl assembly 36 is provided which also surrounds the upper ends of the 16 main body portions 22. In the preferred embodiment, the cowl assembly 36 is removably mounted on the first to left lower cowl member 38, the second to right lower cowl member 40, and the left and right lower cowl members 38, 40. The upper cowl member 42. In the preferred embodiment, the upper cowl member 42 is removably coupled to the lower cowl members 38, 40 by a plurality of latch assemblies 44.
It should be noted that, in different embodiments, the cowl assembly 36 may have only first, second, or left and right side cowl members, each side cowl member having a lower cowl member 38, 40 structure. It has a similar lower cowl portion.

Each of the lower cowl members 38, 40 is
The other one has an inner edge 45 that meshes with the inner edge 45. Also, each of the lower cowl members 38, 40 is configured to provide an opening to allow the steering arm assembly 29 to extend through the cowl assembly 36, as best seen in FIG. Other side cowl members 38, 40 have a recess or opening 77 associated with a symmetrical recess 77 extending from the inner edge 45.

The outboard motor 10 also includes a device that detachably connects the lower left cowl member 38 to the lower right cowl member 40.
Although a variety of suitable coupling devices may be used, in the preferred embodiment, the coupling device comprises a plurality of bolts contained in holes 47.
It has 46 (see FIG. 8).

Further, the outboard motor 10 has a first device for elastically attaching the lower left cowl member 38 to the left side of the propulsion unit 12 in a detachable manner, and an elastic force to detachably attach the lower right cowl member 40 to the right side of the propulsion unit 12. And a second device to be mounted on the screen. In particular, in the preferred embodiment, the first device is a device that removably and elastically mounts a lower left cowl member 38 on the left side of the power head and a lower left cowl member 38 on the left side of the drive shaft housing 16.
The second device is a device for removably and elastically mounting the lower right cowl member 40 on the right side of the power head 30 and a device for removably and elastically mounting the drive shaft housing 16 on the right side of the power head 30. The lower right cowl member 40 is detachably and elastically mounted.

Although various suitable detachable and elastically mounted devices may be used, in the preferred embodiment, the lower left cowl member 38 is used.
Has projections 48, 49 extending upwards that define first recesses or holes 50, 51 respectively, and the first device is coupled to the recesses 50, 51 and the left side of the propulsion unit 12 to the first recesses. 50 and 51 respectively have a pair of elastic mounting members 52 and 53 that are detachably accommodated. The lower right cowl member 40 has a second recess or hole 56,57.
And second projections 54 and 55, each of which defines an upper part and which is coupled to the right side of the recesses 56 and 57 and the propulsion unit 12,
It has a pair of elastic mounting members 58, 59 which are detachably accommodated in the recesses 56, 57, respectively.

Preferably, protrusion 48 is supported by stiffening member 60 and protrusion 54 is supported by stiffening member 62. Furthermore,
The recesses 50, 51, 56, 57 are preferably beveled and are in particular frusto-conical. As best shown in FIGS. 3 and 4, in the preferred embodiment, the resilient mounting members 52,58 are
Resilient mounting members 53,5 connected to both sides of the power head 30
9 are connected to both sides of the adapter unit 24.

As best shown in FIG. 5, in the preferred embodiment, each mounting device is connected to the propulsion unit 12 (ie, the power head).
30 or the adapter unit 24) which has a mounting pin 64 extending almost horizontally and is provided with a resilient mounting member 52,53,58,5
One of the nine is mounted on each mounting pin 64. In the preferred embodiment, each mounting pin 64 has an annular groove 65 around its outer end.
And the clip 67 has respective mounting members 52, 53, 58 or
It may be fixed in the groove 65 like fixing the 59 to the mounting pin 64. Preferably, each of the mounting members 52, 53, 58, 59, when the lower cowl members 38, 40 are coupled to the propulsion unit 12,
A slope is provided so as to be pushed into each recess or hole. In particular, each of the mounting members 52, 53, 58, 59 has a generally frustoconical shape that is complementary to the shape of the recesses or holes 50, 51, 56, 57. In the structure shown, each mounting device also has a washer 66 located between the mounting member 52, 53, 58 or 59 and the side of the propulsion unit 12. As best shown in FIG. 5, the mounting members 52, 53, 58 or 59 have respective holes 50, 51,
When properly positioned at 56 or 57, the respective lower cowl member 38 or 40 is isolated from the propulsion unit 12 by a resilient mounting member.

In order to reduce the vibration of the cowl assembly 36, the device for connecting the lower cowl members 38, 40 compresses the mounting members 52, 53, 58, 59 between the lower cowl members 38, 40 and the propulsion unit 12. It is equipped with a device. Although a variety of suitable compression devices may be used, in the preferred construction, the compression device comprises bolts 49. Therefore, when the bolt 46 is tightened to connect the lower cowl members 38, 40, the mounting members 52, 53, 58, 59 are attached.
Are compressed between the lower cowl member and the propulsion unit 12.

In the preferred embodiment, the cowl assembly 36 includes an elastic seal 68 along the parting line between the left and right lower bags 38, 40, and an adapter unit 24 for sealing the lower cowl members 38, 40 to the adapter unit 24. With an elastic seal 70. In the structure shown, the seal 68 is disposed in the groove 69 of the inner edge 45 of the lower left cowl member 38, and the inner edge 45 of the lower right cowl member 40 has a tongue portion 71 that can be received in the groove 69. Have Further, each of the lower cowl members 38, 40 has a lower cowl member 98,
When 40 is mounted on the propulsion unit 12, it has a flange 79 that abuts the seal 70 and extends inward. Seal 68,70
Are compressed when the lower cowl members 38, 40 are joined. The seals 68,70 provide the propulsion unit 12 with a generally complete seal of the lower cowl members 38,40.

Preferably, the lower cowl member 42 has a lower edge portion 72, and each of the lower cowl members 38, 40 has a front upper edge portion 74 having a downwardly extending slot 76. Further, the outboard motor includes a grommet 78 removably housed in the slot 76 of the lower right cowl member 40 and a grommet 80 removably housed in the slot 76 of the lower left cowl member 38.
And the upper cowl member 4 for engaging the upper edge portion 74 of the lower cowl members 38, 40 and capturing the grommets 78, 80 in the slot 76.
2 is provided with a device for detachably connecting the lower cowl members 38, 40 to the upper cowl member 42 by the lower edge portion 72.
Although a variety of suitable coupling devices may be used, in the preferred embodiment, the coupling device includes the latch 44 and the grommets 78, 80 are those external to the engine 34 and the cowl assembly 36. It is configured to receive or connect a control line or a supply line connected therebetween. In the preferred embodiment, the grommet 80 is removably coupled to a fuel line 82 that communicates with the engine 34 and a fuel line 83 that communicates with a remote fuel source (not shown), and the grommet 78 is a single unit. It houses a switching and throttle control cable 84 which is coupled between a remote controller (not shown), such as a lever controller, and the engine 34.

When the cowl assembly 36 is removed from the propulsion unit 12, the grommets 78, 80 are removed from their respective slots 76 and the fuel line 82 and switching and throttling cable 84.
Is coupled to the engine 34.

Various features and advantages of the invention are set forth in the appended claims.

[Brief description of drawings]

1 is an elevation view of a hull motor embodying the present invention, FIG. 2 is a partial front view of the hull motor, and FIG. 3 is a hull motor with an upper cowl member and a lower right cowl member removed. FIG. 4 is a partial perspective view, FIG. 4 is an exploded front view of the lower motor cover, FIG. 5 is a partially enlarged cross-sectional view of a device for mounting the lower motor cover on a propulsion unit, and FIG. FIG. 7 is an exploded perspective view of the motor cover, FIG. 7 is a sectional view taken along line 7-7 of FIG. 6, and FIG. 8 is an exploded plan view of the lower motor cover. 10 ... Outboard motor, 12 ... Propulsion unit 16 ... Drive shaft housing, 20 ... Propeller 28 ... Drive shaft, 30 ... Power head 34 ... Internal combustion engine, 36 ... Cowl assembly 38 ... First Lower cowl member, 40 …… Second lower cowl member 42 …… Upper cowl member, 44 …… Latch 46 …… Bolt, 47 …… Bolt hole 50,51 …… First recess, 52,53, 58,59 …… Mounting member 56,57 …… Second recess, 64 …… Mounting pin 72 …… Lower edge part, 74 …… Upper edge part 76 …… Slot, 80 …… Grommet

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor, Etch Norman Peterson, Wisconsin 53143, Kenosha, Springbrook 6326 (72) Inventor Robert F Young, Wisconsin 53140, Kenosha, Sixteenth Abbe New 1630 (56) References US Patent 4348194 (US, A)

Claims (10)

(57) [Claims] 1. A propeller (20) rotatably mounted, having a front portion having a surface, a first side portion and a second side portion facing each other, and a drive drivingly connected to the propeller. A drive shaft housing (16) including a shaft (28), a power head (30) mounted on the drive shaft housing and including an internal combustion engine (34) drivingly coupled to the drive shaft, and the power head (30) In an outboard motor comprising a propulsion unit (12) having a cowl assembly (36), the cowl assembly has a first cowl member (38) and a second cowl member (40), and A first device for releasably and elastically mounting the first cowl member on the first side portion has a substantially horizontal axis and is located behind the front portion of the first cowl member and the propulsion unit. The first hole (5 0, 51), the first cowl member, and the first side portion behind the front portion of the propulsion unit, the first side portion being supported by the other and received in the first hole.
A second device including a resilient mounting member (52, 53) for releasably and resiliently mounting the second cowl member to the second side portion of the propulsion unit has a substantially horizontal axis. Second hole (56, 57) supported by either one of the second cowl member and the second side portion behind the front portion of the propulsion unit, the second cowl member and the propulsion unit. A second elastic mounting member (58, 5) supported by the other rear side of the front portion of the unit and the second side portion and received in the second hole.
9) and including the first in the first and second holes.
And said first for holding a second resilient mounting member
And an outboard motor provided with a device (46, 47) for releasably connecting the second cowl member to each other. 2. The power head (30) has a first facing surface.
A device (50, 52) having a side part and a second side part, wherein the first device detachably and elastically mounts the first cowl member (38) on the first side part of the power head. And a device (56, 5) for removably attaching the second cowl member (40) to the second side portion of the power head.
The outboard motor according to claim 1 having 8). 3. The drive shaft housing (16) has a first side part and a second side part which face each other, and the first device includes the first cowl member (38) of the drive shaft housing. A device (51, 53) for removably and elastically attaching to the first side portion, wherein the second device attaches and detaches the second cowl member (40) to the second side portion of the drive shaft housing. The outboard motor according to claim 1, comprising a device (57, 59) for elastically mounting as possible. 4. The power head (30) has a first opposing surface.
A device (50, 52) having a side part and a second side part, wherein the first device detachably and elastically mounts the first cowl member to the first side part of the power head. The second device further comprises a device (56, 58) for detachably and elastically mounting the second cowl member (40) on the second side portion of the power head. The outboard motor according to item 3. 5. The device (46,47) for coupling the first cowl member (38) to the second cowl member (40) includes the first device within the first hole (50,51). Elastic mounting member (52,
53) is compressed and the second hole (56, 57)
The outboard motor according to claim 1, wherein the elastic mounting members (58, 59) are compressed. 6. The first hole (50, 51) is provided in the first cowl member (38), and the first elastic mounting member (52, 52).
53) is supported on the first side portion of the propulsion unit (12), and the second hole (56, 57) is provided on the second cowl member (4).
The outboard motor according to claim 1, wherein the second elastic mounting member (58, 59) provided in (0) is supported by (12) the second side portion of the propulsion unit. 7. The first device is the first of the propulsion unit.
A first mounting pin (64) extending substantially horizontally from the side,
The first elastic mounting member (52, 53) is mounted on the first mounting pin, and the second device is the second unit of the propulsion unit.
A second mounting pin (64) extending substantially horizontally from the side,
The outboard motor according to claim 6, wherein the second elastic mounting member (58, 59) is mounted on the second mounting pin. 8. The first and second elastic mounting members (5)
2. 53, 58, 59) is frustoconical and said first and second holes (50, 51, 56, 57) are frustoconical. The outboard motor described. 9. An upper cowl member (42) in which the cowl assembly is disposed above the first and second cowl members (38, 40), and the upper cowl member including the first and second cowl members. The outboard motor according to claim 1, further comprising a device detachably attached to the member (38, 40). 10. The upper cowl member (42) has a lower edge portion, the first cowl member (38) has an upper edge portion (74), and the upper cowl member (38) extends downward from the upper edge portion. A grommet (78) having an extending slot (76) in the upper edge portion and removably accommodated in the slot, and a lower edge portion of the upper cowl member so as to capture the grommet in the slot. A device (44) for removably coupling the upper cowl member to the first cowl member by combining the upper edge portions of the first cowl member.
The outboard motor according to the paragraph.