Cowlings for marine drives and latching devices for cowlings for marine drives
11780549 ยท 2023-10-10
Assignee
Inventors
- Devan R. Faust (Fond du Lac, WI, US)
- Brad J. VanRuiswyk (Waupun, WI, US)
- Steven J. Amerling (Fond du Lac, WI, US)
Cpc classification
International classification
Abstract
A cowling is for a marine drive. The cowling has first and second cowl portions for enclosing a powerhead, and a latching device which is movable into a latched position in which the powerhead is enclosed by the first cowl and second cowl portions and an unlatched position in which the second cowl portion is movable with respect to the first cowl portion so that the powerhead is accessible. The latching device has an electric actuator configured to automatically move the latching device from the latched position to the unlatched position and a manually-operable input device which is accessible from outside of the cowling and is configured to actuate the electric actuator to thereby automatically move the latching device from the latched position to the unlatched position.
Claims
1. A cowling for a marine drive, the cowling comprising: a first cowling portion, a second cowling portion comprising an access door which is movable relative to the first cowling portion into and between a closed cowl position enclosing the cowl interior and an open cowl position providing access to the cowl interior, a latching device which is movable into a latched position in which the access door is latched to the cowling in the closed cowl position and into an unlatched position in which the access door is movable into the open cowl position, an electric actuator, the electric actuator being configured to move the latching device into the unlatched position so that the access door is movable into the open cowl position, and an input device on the cowling, the input device being configured to operate the electric actuator to move the latching device into the unlatched position wherein the latching device comprises first and second pawl members which are rotatable about first and second pawl axes, respectively, and an engagement member retained by the first and second pawl members when the latching device is in the latched position, and wherein actuation of the electric actuator via the input device actuates the first and second pawl members to release the engagement member.
2. The cowling according to claim 1, wherein the electric actuator comprises an electric motor.
3. A cowling for a marine drive, the cowling comprising: a first cowling portion, a second cowling portion comprising an access door which is movable relative to the first cowling portion into and between a closed cowl position enclosing the cowl interior and an open cowl position providing access to the cowl interior, a latching device which is movable into a latched position in which the access door is latched to the cowling in the closed cowl position and into an unlatched position in which the access door is movable into the open cowl position, an electric actuator, the electric actuator being configured to move the latching device into the unlatched position so that the access door is movable into the open cowl position, and an input device on the cowling, the input device being configured to operate the electric actuator to move the latching device into the unlatched position, wherein the electric actuator comprises an electric motor and a battery coupled to an interior surface of the cowling, and wherein the battery provides power to the electric motor.
4. A cowling for a marine drive, the cowling comprising: a first cowling portion, a second cowling portion comprising an access door which is movable relative to the first cowling portion into and between a closed cowl position enclosing the cowl interior and an open cowl position providing access to the cowl interior, a latching device which is movable into a latched position in which the access door is latched to the cowling in the closed cowl position and into an unlatched position in which the access door is movable into the open cowl position, an electric actuator, the electric actuator being configured to move the latching device into the unlatched position so that the access door is movable into the open cowl position, and an input device on the cowling, the input device being configured to operate the electric actuator to move the latching device into the unlatched position, wherein the electric actuator comprises an electric motor, and wherein the first cowl portion has a sidewall and wherein the input device is located in a recess formed in the sidewall, the input device being electrically coupled to the electric motor.
5. The cowling according to claim 4, wherein the input device comprises a push-button on a top wall of the recess.
6. A cowling for a marine drive, the cowling comprising: a first cowling portion, a second cowling portion comprising an access door which is movable relative to the first cowling portion into and between a closed cowl position enclosing the cowl interior and an open cowl position providing access to the cowl interior, a latching device which is movable into a latched position in which the access door is latched to the cowling in the closed cowl position and into an unlatched position in which the access door is movable into the open cowl position, an electric actuator, the electric actuator being configured to move the latching device into the unlatched position so that the access door is movable into the open cowl position, and an input device on the cowling, the input device being configured to operate the electric actuator to move the latching device into the unlatched position, and an access bore in the cowling, the access bore permitting access to the latching device for manually actuating the latching device in case of a failure of the input device or the electric actuator.
7. The cowling according to claim 1, wherein the electric actuator comprises a linear actuator having an output arm.
8. A cowling for a marine drive, the cowling comprising: a first cowling portion, a second cowling portion comprising an access door which is movable relative to the first cowling portion into and between a closed cowl position enclosing the cowl interior and an open cowl position providing access to the cowl interior, a latching device which is movable into a latched position in which the access door is latched to the cowling in the closed cowl position and into an unlatched position in which the access door is movable into the open cowl position, an electric actuator, the electric actuator being configured to move the latching device into the unlatched position so that the access door is movable into the open cowl position, and an input device on the cowling, the input device being configured to operate the electric actuator to move the latching device into the unlatched position, wherein the electric actuator comprises a linear actuator having an output arm which is caused to move linearly back and forth relative to an interior surface of the first cowl portion, a pawl mechanism and an engagement member, wherein the engagement member is retained by the pawl mechanism when the latching device is in the latched position, and wherein actuation of the linear actuator via the input device actuates the pawl mechanism to release the engagement member.
9. The cowling according to claim 8, wherein the pawl mechanism is spring-biased into the unlatched position.
10. The cowling according to claim 8, wherein the pawl mechanism comprises first and second pawl members which are rotatable about first and second pawl axes, respectively, the first and second pawl axes being parallel and spaced apart from each other.
11. The cowling according to claim 10, wherein each of the first and second pawl members comprises an engagement finger, the engagement fingers being rotated towards each other to retain the engagement member in the latched position and being rotated away from each other to release the engagement member in the unlatched position.
12. The cowling according to claim 10, wherein the first and second pawl members retain the engagement member in a pocket in the latched position.
13. The cowling according to claim 8, wherein the latching device comprises a trigger member for retaining the pawl mechanism in the latched position and for permitting the pawl mechanism to move into the unlatched position, the trigger member being moved out of engagement with the pawl mechanism by the linear actuator.
14. The cowling according to claim 13, wherein the trigger member comprises an actuator arm that is engaged by the pawl mechanism when the latching device is in the latched position.
15. The cowling according to claim 13, wherein the trigger member is rotatable about a rotational axis and is spring-biased into engagement with the pawl mechanism.
16. A cowling for a marine drive, the cowling comprising: a first cowling portion having a perimeter sidewall, a second cowling portion comprising an access door which is movable relative to the first cowling portion into and between a closed cowl position enclosing the cowl interior and an open cowl position providing access to the cowl interior, a latching device which is movable into a latched position in which the access door is latched to the cowling in the closed cowl position and into an unlatched position in which the access door is movable into the open cowl position, wherein the latching device comprises first and second pawl members which are rotatable about first and second pawl axes, respectively, an electric actuator, the electric actuator being configured to move the latching device into the unlatched position so that the access door is movable into the open cowl position, an engagement member, the engagement member being retained by the first and second pawl members when the latching device is in the latched position, wherein the electric actuator actuates the latching device to release the engagement member in the unlatched position, and an input device on the cowling, the input device being configured to operate the electric actuator to move the latching device into the unlatched position.
17. The cowling according to claim 16, wherein the electric actuator comprises a linear actuator.
18. A cowling for a marine drive, the cowling comprising: a first cowling portion having a perimeter sidewall, a second cowling portion comprising an access door which is movable relative to the first cowling portion into and between a closed cowl position enclosing the cowl interior and an open cowl position providing access to the cowl interior, a latching device which is movable into a latched position in which the access door is latched to the cowling in the closed cowl position and into an unlatched position in which the access door is movable into the open cowl position, an electric actuator, the electric actuator being configured to move the latching device into the unlatched position so that the access door is movable into the open cowl position, an engagement member, the engagement member being retained by the latching device when the latching device is in the latched position, wherein the electric actuator actuates the latching device to release the engagement member in the unlatched position, and an input device on the cowling, the input device being configured to operate the electric actuator to move the latching device into the unlatched position, wherein the first cowl portion has a peripheral sidewall and wherein the input device is located in a recess formed in the peripheral sidewall, the input device being electrically coupled to the electric actuator.
19. A cowling for a marine drive, the cowling comprising: a first cowling portion having a perimeter sidewall, a second cowling portion comprising an access door which is movable relative to the first cowling portion into and between a closed cowl position enclosing the cowl interior and an open cowl position providing access to the cowl interior, a latching device which is movable into a latched position in which the access door is latched to the cowling in the closed cowl position and into an unlatched position in which the access door is movable into the open cowl position, an electric actuator, the electric actuator being configured to move the latching device into the unlatched position so that the access door is movable into the open cowl position, an engagement member, the engagement member being retained by the latching device when the latching device is in the latched position, wherein the electric actuator actuates the latching device to release the engagement member in the unlatched position, and an input device on the cowling, the input device being configured to operate the electric actuator to move the latching device into the unlatched position, wherein the electric actuator comprises an electric motor and a battery coupled to an interior surface of the cowling, and wherein the battery provides power to the electric motor.
20. A cowling for a marine drive, the cowling comprising: a first cowling portion having a perimeter sidewall, a second cowling portion comprising an access door which is movable relative to the first cowling portion into and between a closed cowl position enclosing the cowl interior and an open cowl position providing access to the cowl interior, a latching device which is movable into a latched position in which the access door is latched to the cowling in the closed cowl position and into an unlatched position in which the access door is movable into the open cowl position, an engagement member, the engagement member being retained by the latching device when the latching device is in the latched position, wherein the latching device comprises a pawl mechanism and an engagement member, wherein the engagement member is retained by the pawl mechanism when the latching device is in the latched position, and wherein actuation of an actuator via an input device actuates the pawl mechanism to release the engagement member, and wherein the pawl mechanism comprises first and second pawl members which are rotatable about first and second pawl axes, respectively, the first and second pawl axes being parallel and spaced apart from each other.
21. The cowling according to claim 20, wherein the first and second pawl members retain the engagement member in a pocket in the latched position.
22. The cowling according to claim 20, wherein the latching device comprises a trigger member for retaining the pawl mechanism in the latched position and for permitting the pawl mechanism to move into the unlatched position.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) The present disclosure refers to the following drawing Figures.
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DETAILED DESCRIPTION
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(17) The outboard motor 20 has a cowling 21 with a top cowl portion 32 extending over the top of the powerhead 26 and a bottom cowl portion 34 surrounding and extending downwardly below the powerhead 26. The top and bottom cowl portions 32, 34 together define a sealed cowl interior 36 (
(18) Referring to
(19) Referring to
(20) The access door 42 is thus pivotable along its rear side 44 into and between a closed cowl position (
(21) Referring to
(22) Referring to
(23) As shown in
(24) The push-button 64 is located on the bottom of the supporting housing 68 and is connected to the printed circuit board 66. The printed circuit board 66, electrical wires 74, 75 and push-button are configured in a conventional manner such that pressing the push-button 64 actuates the printed circuit board 66 and causes the printed circuit board 66 to produce an electric signal that is conveyed by one or more of the electrically conductive wires 74 to the electric actuator 58. In other words, manually pressing the push-button 64, which accessible from outside of the cowling 21 via the hand recess 62, causes the printed circuit board 66 to electronically actuate the electric actuator 58, which as described herein below moves the latching device 56 from the latched position to the unlatched position. The push-button 64 and printed circuit board 66 are conventional items that are commercially available from a variety of commercial providers of tactile switches, for example from C&K part number KSC343GLFG. Other conventional actuators including conventional tactile switches could also or instead be employed. The electric actuator 58 is an electric motor, which is also a conventional item that for example is commercially available from Hella, part number 6NW 009.203-501. Any other type of suitable electric motor could instead be employed. In the illustrated embodiment, the electric actuator 58 is a linear actuator having an output arm 67 that is caused by the electric motor to move linearly back and forth with respect to the electric motor, as will be further described herein below.
(25) Referring to
(26) Referring to
(27) Referring to
(28) The pawl mechanism 114 is mounted on the latch bracket 88 and is movable into and between a closed position (
(29) Each of the first and second pawl members 116, 118 has a respective pawl body 120, 122 and an engagement finger 124, 126 that radially extends from the pawl body 120, 122. As shown in
(30) Each of the first and second pawl members 116, 118 has a radial cutout 128, 130 which is peripherally spaced apart from the respective engagement finger 124, 126 on the respective pawl body 120, 122. As shown in
(31) Referring to
(32) Referring to
(33) Referring to
(34) An actuator tab 156 transversely extends from the output arm 67 of the electric actuator 58 and engages with the actuator arm 144 to cause rotation of the trigger member 140 about the trigger axis, counter-clockwise in the figures, as shown at arrow 158 in
(35) Referring to
(36) In use, referring to
(37) Referring to
(38) Thus it will be understood that the present disclosure provides a novel cowling for a marine drive and a novel latching device for latching the cowling of the marine drive. The cowling comprises first and second cowl portions for enclosing a powerhead and the latching device which is movable into a latched position in which the powerhead is enclosed by the first cowl and second cowl portions and an unlatched position in which the second cowl portion is movable with respect to the first cowl portion so that the powerhead is accessible. The latching device comprises an electric actuator configured to automatically move the latching device from the latched position to the unlatched position and a manually-operable input device which is accessible from outside of the cowling and is configured to actuate the electric actuator to thereby automatically move the latching device from the latched position to the unlatched position.
(39) The latching device further comprises a pawl mechanism on a first one of the first and second cowl portions and an engagement member on a second one of the first and second cowl portions, the pawl mechanism being movable by the electric actuator into and between a closed position for retaining the engagement member when the latching device is in the latched position and an opened position for releasing and receiving the engagement member when the latching device is in the unlatched position. The pawl mechanism comprises first and second pawl members that are rotatable about first and second pawl axes, respectively, the first and second pawl axes being spaced apart from each other. The first and second pawl members in the closed position retain the engagement member there between and thus retain the first and second cowl portions together so as to enclose the powerhead, and alternately the first and second pawl members are movable into the opened position so as to release the engagement member and thereby allow the first and second cowl portions to be separated from each other so the powerhead is accessible. First and second pawl springs that cause the first and second pawl members, respectively, to rotate about the first and second pawl axes so that the pawl mechanism is biased into the opened position.
(40) The first and second pawl members comprise first and second engagement fingers, respectively, which retain the engagement member in a pocket defined between the first and second pawl members when the pawl mechanism is in the closed position. A trigger member is included, wherein the electric actuator is configured to move the trigger member out of engagement with the first and second pawl members to thereby permit movement of the pawl mechanism into the opened position. Disengagement of the trigger member from the first and second pawl members causes the pawl mechanism to automatically move into the opened position. The electric actuator is configured to rotate the trigger member, to thereby disengage the trigger member from the first and second pawl members. The trigger member is biased into engagement with the first and second pawl members to thereby retain the pawl mechanism in the closed position, by a trigger spring. The first and second pawl members are rotatable about first and second pawl hubs and the trigger member is rotatable about a trigger hub, each of the first and second pawl hubs and trigger hub being spaced apart from each other. The trigger member comprises an engagement finger, and the first and second pawl members comprise cutout surfaces that engage opposite side surfaces of the engagement finger when the trigger member is engaged with the first and second pawl members.
(41) This written description uses examples to disclose the invention, including the best mode, and also to enable any person skilled in the art to make and use the invention. Certain terms have been used for brevity, clarity and understanding. No unnecessary limitations are to be inferred therefrom beyond the requirement of the prior art because such terms are used for descriptive purposes only and are intended to be broadly construed. The patentable scope of the invention is defined by the claims, and may comprise other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they have features or structural elements that do not differ from the literal language of the claims, or if they comprise equivalent features or structural elements with insubstantial differences from the literal languages of the claims.