Implements or apparatus for applying pushing or pulling force – Apparatus for hauling or hoisting load – including driven... – Device includes rotatably driven – cable contacting drum
Patent
1988-11-18
1990-04-10
Matecki, Katherine A.
Implements or apparatus for applying pushing or pulling force
Apparatus for hauling or hoisting load, including driven...
Device includes rotatably driven, cable contacting drum
254372, B66D 100
Patent
active
049153579
DESCRIPTION:
BRIEF SUMMARY
FIELD OF INVENTION
The invention relates to a device in connection with an anchor winch such as for a pleasure craft, having a reversible drive pulley for an anchor cable.
BACKGROUND
The anchor winches common today for pleasure craft are provided with a manually operated coupling for the drive pulley, permitting the latter to be released from the drive shaft when the anchor is to be dropped and, thus, permitting the anchor to slide out relatively quickly. For pleasure craft, a term which should in the present context comprise other relatively small craft, such an anchor winch is quite satisfactory when used ahead. In most cases there will be no need of dropping the anchor quickly, and the anchor may then be dropped by the aid of the winch with the electromotor of the winch being reversed from the wheel house. Only when it is necessary to drop anchor quickly is the drive pulley released manually. Especially aft it may be necessary to drop anchor quickly. A typical situation demanding quick anchor dropping arises when the anchor is dropped 40-50 m from the shore with the craft moving slowly towards the shore. In such cases it is desired to make fast the craft ahead while the anchor should keep the craft off the shore. There is no time to lose and so the anchor has to be dropped quickly.
SUMMARY
It is an object of the invention to permit quick dropping of the anchor by reversal of the drive motor or release of the pawl lock. According to the invention this is achieved by ensuring that part of the circumference of the drive pulley is spanned by a lifting member which is rotatable about the axis of said drive pulley and is slip coupled with drive pulley, and by stops limiting the rotational movement of lifting member between a position outside the sector of engagement of the cable on the drive pulley, and a position with the lifting member being in the sector of engagement and lifting the cable out of drive cooperation with the drive pulley.
Further features of the invention and its advantages will be disclosed in more detail below in connection with a description of en embodiment shown in the drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows an anchor winch provided aft on a craft.
FIG. 2 shows a drive pulley with the invention implemented.
FIG. 3 shows the drive pulley of FIG. 2, as seen from its free side.
FIG. 4 is a sectional view of the drive pulley along line IV--IV in FIG. 2.
FIG. 5 is an axial section of the drive pulley (with cover).
FIG. 6 shows the drive pulley, in FIG. 2, from the other side, with the lifting member in a lifting position.
FIG. 7 is a sectional view like FIG. 3, but with the lifting member in a lifting position.
DETAILED DESCRIPTION OF INVENTION
In FIG. 1 the stern of a craft 1 is shown with an anchor winch 3 mounted on a chain box 2. Here, the drive pulley is a sprocket wheel, and the anchor cable is a chain 4. Drive pulley 5 is shown in FIGS. 2-7.
As shown in FIGS. 4 and 5, a coupling boss 6 is keyed at 7 on a drive shaft 8 which is driven by an electromotor (not shown) on winch 3. Drive shaft 8 is provided with a threaded portion 9 at its outer end. The drive pulley is mounted on boss 6 to be loosely rotatable. The bore in the drive pulley is conically enlarged at 10 towards both sides. A coupling cone 11 is mounted on shaft 8 and can be urged towards cone wall 10 by the aid of a clamp nut 12 which is screwed onto the threaded portion 9 with a ring 13 inserted between said parts. Coupling cone 11 is provided with axial teeth 14 entering into radial grooves 15 in the end wall of boss 6. Between the coupling cone and the boss a spring washer 16 is provided. In the shown position drive pulley and drive shaft are drive coupled.
An annular disk 17 is mounted between a plate or disk collar 18 on coupling cone 11 and flank 19 of the drive pulley. Plate collar 18 urges the annular disk 17 towards flank 19, but only so much that a slip coupling is provided. Between plate collar 18 and annular disc 17, respectively between annular disc 17 and flank 19, friction plates 2
REFERENCES:
patent: 1762715 (1930-06-01), Gahagan
patent: 2704201 (1955-03-01), Rokins
patent: 2991976 (1961-07-01), Carroll
Industri Lambertseter A/S
Matecki Katherine A.
LandOfFree
Anchor winch permitting quick anchor dropping does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anchor winch permitting quick anchor dropping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anchor winch permitting quick anchor dropping will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2294940