Latching apparatuses for cowls on outboard marine engines

Patent metadata

Field	Value
Publication number	US-9926064-B1
Application number	US-201514721106-A
Country	US
Kind code	B1
Filing date	May 26, 2015
Priority date	May 26, 2015
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

A latching apparatus is for a cowl on an outboard marine engine. The cowl has a first cowl portion and a second cowl portion, which are latched together by the latching apparatus in a closed cowl position and unlatched from each other in an open cowl position. The latching apparatus comprises a retainer on the first cowl portion; an actuator device on the second cowl portion, and a wire coupled to the actuator device. The wire is coupled to the retainer in the closed cowl position and the wire is uncoupled from the retainer in the open cowl position. Actuation of the actuator device in a first direction rotates the wire so as to couple the wire to the retainer and actuation of the actuator device in a second direction rotates the wire so as to uncouple the wire from the retainer.

First claim

What is claimed is:

1. A latching apparatus and cowl for an outboard marine engine, the cowl having a first cowl portion and a second cowl portion which are latched together by the latching apparatus in a closed cowl position and unlatched from each other in an open cowl position, the latching apparatus comprising:
a retainer on the first cowl portion;
an actuator device on the second cowl portion; and
a wire that is coupled to the retainer in the closed cowl position and uncoupled from the retainer in the open cowl position;
wherein the wire is coupled to the actuator device such that actuation of the actuator device causes rotation of the wire; and
wherein in the closed cowl position an end of the wire is coupled to the retainer via a threaded connection, wherein actuation of the actuator device in a first direction rotates the wire and causes the end of the wire to axially translate into engagement with the retainer, and wherein actuation of the actuator device in a second direction rotates the wire and causes the end of the wire to axially translate out of engagement with the retainer.

2. The latching apparatus and cowl according to claim 1 , wherein the retainer comprises a threaded bore that engages with the end of the wire in the closed cowl position.

3. The latching apparatus and cowl according to claim 2 , wherein the retainer further comprises a funnel that guides the end of the wire into engagement with the threaded bore when the actuator device is actuated in the first direction.

4. The latching apparatus and cowl according to claim 3 , wherein the retainer comprises a mounting plate that is configured to mount to an inner cowl surface of the first cowl portion, wherein the funnel transversely extends from the mounting plate.

5. The latching apparatus and cowl according to claim 2 , wherein the end of the wire comprises a pin having a threaded outer surface that engages with the threaded bore on the retainer in the closed cowl position.

6. The latching apparatus and cowl according to claim 1 , further comprising a stationary sheath on the wire, wherein the wire is rotatable within the sheath.

7. The latching apparatus according to claim 1 , further comprising a wire housing on the second cowl portion, wherein the wire extends through the wire housing.

8. The latching apparatus and cowl according to claim 7 , further comprising a spring having a first end that acts on the wire housing and an opposite second end that acts on the wire to bias the end of the wire out of the wire housing towards the retainer.

9. The latching apparatus and cowl according to claim 8 , further comprising an end cap on the wire housing, wherein the first end of the spring acts on the wire housing via the end cap and further comprising a pin cap coupled to the wire, wherein the second end of the spring acts on the wire via the pin cap.

10. The latching apparatus and cowl according to claim 1 , wherein the wire is one of a plurality of wires, wherein the retainer is one of a plurality of retainers on the first cowl portion, and wherein the actuator device further comprises a gearset that transmits actuation of the actuator device to the plurality of wires.

11. The latching apparatus and cowl according to claim 10 , wherein the gearset comprises a planetary gearset.

12. The latching apparatus and cowl according to claim 11 , wherein the planetary gearset comprises a ring gear that rotates about a ring gear axis when the actuator device is rotated, and a plurality of planet gears that each rotate about one of a plurality of planet gear axes when the ring gear is rotated about the ring gear axis, wherein the ring gear axis is parallel to the plurality of planet gear axes.

13. The latching apparatus and cowl according to claim 12 , further comprising a lock that prevents rotation of the planetary gearset.

14. The latching apparatus and cowl according to claim 13 , wherein the lock comprises an actuator device and a locking finger, wherein actuation of the actuator device of the lock engages the locking finger with the ring gear to prevent rotation of the ring gear.

15. The latching apparatus and cowl according to claim 1 , wherein rotation of each of the plurality of planet gears causes rotation of a respective one of the plurality of wires.

16. The latching apparatus and cowl according to claim 15 , further comprising a one-way clutch on each of the plurality of planet gears.

17. The latching apparatus and cowl according to claim 16 , wherein the one-way clutch is nested in a respective planet gear in the plurality of planet gears.

18. The latching apparatus and cowl according to claim 17 , wherein the one-way clutch comprises an outer circumference having at least one tab, wherein the respective planet gear comprises an inner circumferential surface having at least one a ridge, and wherein under resistance from the wire, the tab is configured to rotate past the ridge when the actuator device is rotated in the first direction so that relative rotation occurs between the respective planet gear and the one-way clutch, and wherein the tab is configured to engage with the ridge so as to prevents relative rotation between the respective planet gear and the one-way clutch when the actuator device is rotated in the second direction.

Assignees

• Brunswick Corp

Inventors

• Tuchscherer Andrew

Classifications

• F16H1/28

  with gears having orbital motion · CPC title

• B63H21/36 Primary

  Covers or casing arranged to protect plant or unit from marine environment · CPC title

• F16B35/042

  for retention or rotation by a tool, e.g. of polygonal cross-section · CPC title

• F16C1/02

  for conveying rotary movements · CPC title

• F16H3/04

  with internally-toothed gears · CPC title