CA1165187A - Device for detachably fixing a light-weight anchor onto a boat - Google Patents
Device for detachably fixing a light-weight anchor onto a boatInfo
- Publication number
- CA1165187A CA1165187A CA000412247A CA412247A CA1165187A CA 1165187 A CA1165187 A CA 1165187A CA 000412247 A CA000412247 A CA 000412247A CA 412247 A CA412247 A CA 412247A CA 1165187 A CA1165187 A CA 1165187A
- Authority
- CA
- Canada
- Prior art keywords
- shank
- anchor
- rail
- onto
- boat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPINGÂ
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/22—Handling or lashing of anchors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Emergency Lowering Means (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE:
A device for detachably fixing a light-weight anchor of the pivoting fluke type, in a very simple and fast manner onto a rail extending upwardly from a boat.
The device comprises a tubular, hollow member having an inner diameter wide enough to receive the shank of the anchor together with the chain connecting this shank to the boat. A pair of clamps are externally secured to the member for detachably mounting it onto the rail so that it extends in parallel relationship therewith. In operation, the anchor is fixed by mere insertion of the end of the shank with the chain connected thereto, into the upper end of the hollow member, the anchor remaining fixed into the device by gravity with the shank extending -inside the member.
A device for detachably fixing a light-weight anchor of the pivoting fluke type, in a very simple and fast manner onto a rail extending upwardly from a boat.
The device comprises a tubular, hollow member having an inner diameter wide enough to receive the shank of the anchor together with the chain connecting this shank to the boat. A pair of clamps are externally secured to the member for detachably mounting it onto the rail so that it extends in parallel relationship therewith. In operation, the anchor is fixed by mere insertion of the end of the shank with the chain connected thereto, into the upper end of the hollow member, the anchor remaining fixed into the device by gravity with the shank extending -inside the member.
Description
~3L6~
The present invention relates to a device for-detachably fixing a light-weight anchor of the pivoting fluke type, onto a rail extending upwardly from a boat.
Light-weight anchors of the pivoting fluke type, also known as Danforth anchors, are well-known in the art and widely used on small and medium sized, sail and power boats. Such anchors comprise an elongated shank connected at one end to the boat by a chain and at the other end to a pivoting rod extending transversally to the shank. The 1~ pivoting rod carries a crown plate assembly and a pair of flukes symetrically arranged with respect to the shank. Of course, the flukes and crown plate assembly are free to pivot together with the rod relative to the shank.
When they are not in use, the anchors are usually attached to the top of the deck or to some other part of the boat, such as the rail usually extending at the bow of the boat to define a pulpit.
Numerous devices have been proposed hitherto to detachably fix light-weight anchors onto the bow rails of ~0 boats, using metal brackets or hooks c;ecured to the rail.
In this regard, reference can be made, by way of example, to United States patents nos 3,752.107 of 1973; 3,935,830 of 1976; 3,991,699 of 1976; 4,122,794 of 1978 and 4,164jl94 of 1979.
All the known prior art devices have the common advantage of making the anchor accessible when needed, while positioning it off of the deck. However, some of them have the disadvantage of leaving the flukes and crown plate assembly free to rotate with respect to the shank or vice versa, thus leading to an undesirable swaying as soon as the sea is not perfectly smooth. Other devices have the disadvantage of requesting substantial manipulation and even skill to fix the anchors thereto or remove the anchors therefrom.
~ ~ 6S~
An object of the present invention is to provide an improved device for detachably fixing a light-weight anchor of the pivoting fluke type onto a rail extending upwardly from a boat, which device is very simple in structure and there~ore is very easy to contruct, mount and use.
Another object of the invention is to provide an improved device of the above-mentioned type, which avoids the above-mentioned disadvantages encountered with the known devices of the same type.
In accordance with the invention, a device is provided for detachably fixing a light-weight anchor of the pivoting fluke type onto a rail extending upwardly from a boat, the anchor comprising an elongated shank connected at one end to the boat by a chain, and at the other end to at least one fluke. The device comprises a tubular hollow member having a longitudinal axis, upper and lower ends, and an inner diameter wide enough to receive the shank and-the chain connected thereto. ~he device also comprises clamping means externally secured to the member for detach-ably mounting in onto the rail, in parallel relationship therewith.
The anchor can be detachably fixed onto the device by inserting the end of the shank with the chain connected thereto into the upper end of the hollow member, and letting the shank fall down until it is retained by the fluke(s). In this position, the anchor remains fixed by gravity with the shank located inside the member.
The structure o~ the basic components of the device according to the invention and the way these components are assembled, are very simple. The fixation of the anchor to the device and the removal therefrom are also very simple - and do not request extensive manipulation andtor skill from the user. Moreover, the weight of the anchor after insertion of the shank inside the member, ensures positive engagement of the pivoting part of the anchor onto the upper end of the member, and thus prevents this pivoting part to swing back and forth with respect to the shank inserted into the member under rough sea conditions.
Accoxding to a preferred embodiment of the inven-tion, a recess is provided in the upper end of the member to give enough room to the chain to allow positive contact of the pivoting part of the anchor onto the upper end of the member when the anchor is fixed.
According to an another preferred embodiment of the invention, the clamping means comprise a pair of clamps having a contour similar to the one of the rail and an axis parallel to the longitudinal axis of the member. These clamps are positioned one above the other, adjacent to the upper and lower ends of the member, respectively, to provide better attachment of the device onto the rail.
As indicated hereinabove, the rail on which the device according to the invention may be mounted, must extend up-wardly from the deck or any other part of the boat. Therail needs not extend perpendiclllarly to the deck or bow of the boat, but may lean forwardly or rearwardly. However, it is compulsory that this rail extend upwardly so that the member mounted parallel thereto extends in the same direc-tion and allows the anchor to remain fixed by gravity withthe shank inside the hollow member.
The invention will be better understood with reference ot the ~ollowing non-restrictive description o~
a pre~erred embodiment thereof, taken in connection with accompanying drawings in which:
- fig. 1 is a fragmentary, perspective view of the bow of a boat provided with a device according to the invention for detachably fixing a light-weight anchor;
- - fig. 2 is a side elevational view of the device ~s~
shown in fig. l; and - fig. 3 is a top plan view of the device shown in figs. 1 and 2.
Fig. 1 shows in continuous lines, a device 1 according to the invention for detachably fixing a light-weight anchor 3 onto a rail 5 extending upwardly and front-wardly from the bow 7 of a boat 9. The rail 5 can be part of the pulpit 11 provided for retaining a sailor who has to work at the bow 7 of the boat.
Of course, the device 1 can also be fixed onto another rail extending upwardly from another part of the bGat, provided that this rail extends upwardly.
As aforesaid, the device 1 is designed for detach-ably fixing a light-weight anchor 3 of the pivoting 1uke type. This anchor 3 comprises an elongated shank 13 con-nected at one end 15 to the bow 7 of the boat 9 by a chain 17. The chain can be fixed to the shank through a mooring-ring or any other attachment means not shown in the drawings.
The shank 13 is pivotably connected at the other end to a rod 19 extending transversally thereto. The pivoting rod 19 carries a crown plate assembly 23 and a pair of flukes 21 and 21' symmetrically arranged with respect to the shank and free to pivot together with the rod 19 relative to this shank.
In accordance with the invention, the device 1 comprises a tubular hollow member 25. This member which is preferably cylindrical as shown in the drawings, comprises a longitudinal axis, an open lower end 27 and an open upper end 29. The inner diameter of this member 25 is selected to be wide enough to receive the shank 13 and chain 17 when the same are inserted thereto as shown by the arrow in fig.
1.
The device 1 also comprises clamping means exter-nally secured to the member 25 for detachably mounting it 1~5~7 onto the rail 5 in parallel relationship therewith. `These clamping means comprise a pair of clamps 33 and 35 having a contour similar to the one of the rail 5 and an axis parallel to the longitudinal axis of the member. These clamps 33 and 35 are positioned one above the other adja-cent the lower and upper end 27 and 29 of the member 25, respectively, to provide better attachment of the device 1 onto the rail 5, as clearly shown in fig. 2.
Each of the clamps 33 and 35 comprises an open sleeve having a contour similar to the one of the rail 5.
The free ends 37 and 37' of the sleeve are flattened and provided with aligned openings 39 to receive a bolt and nut assembly 41 as shown in fig. 3. The clamps 33 and 35 are secured onto the member 25 by tangentially welding the sleeves onto the member 25 along welding lines 43 and 45 opposite to the flat ends 37 and 37'. Thus, the common longitudinal axis of the sleeves of the clamps 33 and 35 extend parallel to the longitudinal axis of the member 25.
This arrangement allow the member 25 to be easily and quickly mounted on, and parallel to, the rail 5 as shown in fig. 1.
The device 1 further comprises a recess 31 pro-vided into the upper end 29 of the member 25 opposite to the clamps 33 and 35. The shape of this recess is not critical, provided that it gives enough room to the chain 17 to avoid it from interfering with the flu]ces 21 and 21', the crown plate assembly 23 and/or the rod 19.
In operation, the anchor 3 can be detachably fixed in a very fast and easy manner onto the device 1, by inserting the end 15 of the shank 13 with the chain 17 connected thereto into the upper end 29 of the hollow mem-ber 25, and letting the anchor fall down inside the member until it is retained by its flukes 21 and 21' and/or crown plate assembly 23 and/or rod 19. In this inserted position, ~ 7 the anchox 3 remains fixed by mere gravity with a shank 13 located inside the member 25. In the meantime, the recess 31 allows the chain 17 connected to the shank 13 inserted into the member to extend out of the same through it.
As can be easily understood, the weight of the anchor 3 after insertion of its shank 13 inside the member 25, ensures positive engagement of the pivoting part of the anchor onto the upper end 29 of the member, and thus pre-vents this pivoting part to swing back and forth with respect to the shank 3 under rough sea conditions.
As can also be understood, the structure of the device 1 is very simple. The anchor 3 can be fixed to the device 1 or removed therefrom in a very fast and easy manner without requesting extensive manipulation and/or skill from the sailor.
Of course, the above described embodiment of the present invention is merely examplary. Indeed, it is obvious that the invention is susceptible to modification, variation and change without departing from the proper scope and fair meaning of the lnvention as defined in the foll~wing claims.
.
The present invention relates to a device for-detachably fixing a light-weight anchor of the pivoting fluke type, onto a rail extending upwardly from a boat.
Light-weight anchors of the pivoting fluke type, also known as Danforth anchors, are well-known in the art and widely used on small and medium sized, sail and power boats. Such anchors comprise an elongated shank connected at one end to the boat by a chain and at the other end to a pivoting rod extending transversally to the shank. The 1~ pivoting rod carries a crown plate assembly and a pair of flukes symetrically arranged with respect to the shank. Of course, the flukes and crown plate assembly are free to pivot together with the rod relative to the shank.
When they are not in use, the anchors are usually attached to the top of the deck or to some other part of the boat, such as the rail usually extending at the bow of the boat to define a pulpit.
Numerous devices have been proposed hitherto to detachably fix light-weight anchors onto the bow rails of ~0 boats, using metal brackets or hooks c;ecured to the rail.
In this regard, reference can be made, by way of example, to United States patents nos 3,752.107 of 1973; 3,935,830 of 1976; 3,991,699 of 1976; 4,122,794 of 1978 and 4,164jl94 of 1979.
All the known prior art devices have the common advantage of making the anchor accessible when needed, while positioning it off of the deck. However, some of them have the disadvantage of leaving the flukes and crown plate assembly free to rotate with respect to the shank or vice versa, thus leading to an undesirable swaying as soon as the sea is not perfectly smooth. Other devices have the disadvantage of requesting substantial manipulation and even skill to fix the anchors thereto or remove the anchors therefrom.
~ ~ 6S~
An object of the present invention is to provide an improved device for detachably fixing a light-weight anchor of the pivoting fluke type onto a rail extending upwardly from a boat, which device is very simple in structure and there~ore is very easy to contruct, mount and use.
Another object of the invention is to provide an improved device of the above-mentioned type, which avoids the above-mentioned disadvantages encountered with the known devices of the same type.
In accordance with the invention, a device is provided for detachably fixing a light-weight anchor of the pivoting fluke type onto a rail extending upwardly from a boat, the anchor comprising an elongated shank connected at one end to the boat by a chain, and at the other end to at least one fluke. The device comprises a tubular hollow member having a longitudinal axis, upper and lower ends, and an inner diameter wide enough to receive the shank and-the chain connected thereto. ~he device also comprises clamping means externally secured to the member for detach-ably mounting in onto the rail, in parallel relationship therewith.
The anchor can be detachably fixed onto the device by inserting the end of the shank with the chain connected thereto into the upper end of the hollow member, and letting the shank fall down until it is retained by the fluke(s). In this position, the anchor remains fixed by gravity with the shank located inside the member.
The structure o~ the basic components of the device according to the invention and the way these components are assembled, are very simple. The fixation of the anchor to the device and the removal therefrom are also very simple - and do not request extensive manipulation andtor skill from the user. Moreover, the weight of the anchor after insertion of the shank inside the member, ensures positive engagement of the pivoting part of the anchor onto the upper end of the member, and thus prevents this pivoting part to swing back and forth with respect to the shank inserted into the member under rough sea conditions.
Accoxding to a preferred embodiment of the inven-tion, a recess is provided in the upper end of the member to give enough room to the chain to allow positive contact of the pivoting part of the anchor onto the upper end of the member when the anchor is fixed.
According to an another preferred embodiment of the invention, the clamping means comprise a pair of clamps having a contour similar to the one of the rail and an axis parallel to the longitudinal axis of the member. These clamps are positioned one above the other, adjacent to the upper and lower ends of the member, respectively, to provide better attachment of the device onto the rail.
As indicated hereinabove, the rail on which the device according to the invention may be mounted, must extend up-wardly from the deck or any other part of the boat. Therail needs not extend perpendiclllarly to the deck or bow of the boat, but may lean forwardly or rearwardly. However, it is compulsory that this rail extend upwardly so that the member mounted parallel thereto extends in the same direc-tion and allows the anchor to remain fixed by gravity withthe shank inside the hollow member.
The invention will be better understood with reference ot the ~ollowing non-restrictive description o~
a pre~erred embodiment thereof, taken in connection with accompanying drawings in which:
- fig. 1 is a fragmentary, perspective view of the bow of a boat provided with a device according to the invention for detachably fixing a light-weight anchor;
- - fig. 2 is a side elevational view of the device ~s~
shown in fig. l; and - fig. 3 is a top plan view of the device shown in figs. 1 and 2.
Fig. 1 shows in continuous lines, a device 1 according to the invention for detachably fixing a light-weight anchor 3 onto a rail 5 extending upwardly and front-wardly from the bow 7 of a boat 9. The rail 5 can be part of the pulpit 11 provided for retaining a sailor who has to work at the bow 7 of the boat.
Of course, the device 1 can also be fixed onto another rail extending upwardly from another part of the bGat, provided that this rail extends upwardly.
As aforesaid, the device 1 is designed for detach-ably fixing a light-weight anchor 3 of the pivoting 1uke type. This anchor 3 comprises an elongated shank 13 con-nected at one end 15 to the bow 7 of the boat 9 by a chain 17. The chain can be fixed to the shank through a mooring-ring or any other attachment means not shown in the drawings.
The shank 13 is pivotably connected at the other end to a rod 19 extending transversally thereto. The pivoting rod 19 carries a crown plate assembly 23 and a pair of flukes 21 and 21' symmetrically arranged with respect to the shank and free to pivot together with the rod 19 relative to this shank.
In accordance with the invention, the device 1 comprises a tubular hollow member 25. This member which is preferably cylindrical as shown in the drawings, comprises a longitudinal axis, an open lower end 27 and an open upper end 29. The inner diameter of this member 25 is selected to be wide enough to receive the shank 13 and chain 17 when the same are inserted thereto as shown by the arrow in fig.
1.
The device 1 also comprises clamping means exter-nally secured to the member 25 for detachably mounting it 1~5~7 onto the rail 5 in parallel relationship therewith. `These clamping means comprise a pair of clamps 33 and 35 having a contour similar to the one of the rail 5 and an axis parallel to the longitudinal axis of the member. These clamps 33 and 35 are positioned one above the other adja-cent the lower and upper end 27 and 29 of the member 25, respectively, to provide better attachment of the device 1 onto the rail 5, as clearly shown in fig. 2.
Each of the clamps 33 and 35 comprises an open sleeve having a contour similar to the one of the rail 5.
The free ends 37 and 37' of the sleeve are flattened and provided with aligned openings 39 to receive a bolt and nut assembly 41 as shown in fig. 3. The clamps 33 and 35 are secured onto the member 25 by tangentially welding the sleeves onto the member 25 along welding lines 43 and 45 opposite to the flat ends 37 and 37'. Thus, the common longitudinal axis of the sleeves of the clamps 33 and 35 extend parallel to the longitudinal axis of the member 25.
This arrangement allow the member 25 to be easily and quickly mounted on, and parallel to, the rail 5 as shown in fig. 1.
The device 1 further comprises a recess 31 pro-vided into the upper end 29 of the member 25 opposite to the clamps 33 and 35. The shape of this recess is not critical, provided that it gives enough room to the chain 17 to avoid it from interfering with the flu]ces 21 and 21', the crown plate assembly 23 and/or the rod 19.
In operation, the anchor 3 can be detachably fixed in a very fast and easy manner onto the device 1, by inserting the end 15 of the shank 13 with the chain 17 connected thereto into the upper end 29 of the hollow mem-ber 25, and letting the anchor fall down inside the member until it is retained by its flukes 21 and 21' and/or crown plate assembly 23 and/or rod 19. In this inserted position, ~ 7 the anchox 3 remains fixed by mere gravity with a shank 13 located inside the member 25. In the meantime, the recess 31 allows the chain 17 connected to the shank 13 inserted into the member to extend out of the same through it.
As can be easily understood, the weight of the anchor 3 after insertion of its shank 13 inside the member 25, ensures positive engagement of the pivoting part of the anchor onto the upper end 29 of the member, and thus pre-vents this pivoting part to swing back and forth with respect to the shank 3 under rough sea conditions.
As can also be understood, the structure of the device 1 is very simple. The anchor 3 can be fixed to the device 1 or removed therefrom in a very fast and easy manner without requesting extensive manipulation and/or skill from the sailor.
Of course, the above described embodiment of the present invention is merely examplary. Indeed, it is obvious that the invention is susceptible to modification, variation and change without departing from the proper scope and fair meaning of the lnvention as defined in the foll~wing claims.
.
Claims (4)
1. A device for detachably fixing a light-weight anchor of the pivoting fluke type onto a rail extending up-wardly from a boat, said anchor comprising an elongated shank connected at one end to the boat by a chain and at the other end to the fluke, said device comprising:
a) a tubular, hollow member having a longitudinal axis, upper and lower ends, and an inner diameter wide enough to receive the shank and the chain connected thereto; and b) clamping means externally secured to the member for detachably mounting it onto the rail with the longitudinal axis of this member extending parallel to said rail;
whereby fixation of the anchor is achieved by inserting the one end of the shank with the chain connected thereto, into the upper end of the hollow member, and letting said shank fall down until it is retained by the fluke, the anchor remaining fixed by gravity with the shank inside the member.
a) a tubular, hollow member having a longitudinal axis, upper and lower ends, and an inner diameter wide enough to receive the shank and the chain connected thereto; and b) clamping means externally secured to the member for detachably mounting it onto the rail with the longitudinal axis of this member extending parallel to said rail;
whereby fixation of the anchor is achieved by inserting the one end of the shank with the chain connected thereto, into the upper end of the hollow member, and letting said shank fall down until it is retained by the fluke, the anchor remaining fixed by gravity with the shank inside the member.
2. A device as claimed in claim 1, comprising a recess in the upper end of the member to give enough room to the chain to allow plain contact of the fluke onto said upper end when the anchor is fixed.
3. A device as claimed in claim 1 or 2, wherein said clamping means comprises a pair of claimps having a contour similar to the one of the rail and an axis parallel to the longitudinal axis of the member, said clamps being positioned one above the other adjacent the upper and lower ends of said member, respectively.
4. A device for detachably fixing a light-weight anchor of the pivoting fluke type onto a low rail extending upwardly from a boat, said anchor comprising an elongated shank connected at one end to the boat by a chain, and at the other end to a pivoting rod extending transversally and on which are mounted a pair of flukes and a crown plate assembly, said device comprising:
a) a cylindrical hollow member having a longitudinal axis, an upper end with a rounded recess extending along on half of the periphery of said upper end, a lower end, and an inner diameter wide enough to receive the shank and the chain connected thereto, and b) a pair of clamps positioned one above the other adjacent the upper and lower ends of the member, for detachably mounting said member onto the rail with the longitudinal axis of this member parallel to said rail, each of said clamps consisting of an open sleeve having a contour similar to the one of the rail and two facing flat ends with aligned openings to receive a bolt and nut assembly, said sleeves being tangentially welded onto the member so as to extend opposite the upper end recess, whereby fixation of the anchor is achieved by insert-ing the one end of the shank with the chain connected thereto in the upper end of the hollow member after the same has been mounted by its clamps onto the rail, and letting said shank fall down until the pivoting rod contacts the upper end of saime member, the anchor remaining fixed by gravity with the shank inside the member, the chain connected to the one end of the shank inserted into the member extending out of the same through the upper end recess.
a) a cylindrical hollow member having a longitudinal axis, an upper end with a rounded recess extending along on half of the periphery of said upper end, a lower end, and an inner diameter wide enough to receive the shank and the chain connected thereto, and b) a pair of clamps positioned one above the other adjacent the upper and lower ends of the member, for detachably mounting said member onto the rail with the longitudinal axis of this member parallel to said rail, each of said clamps consisting of an open sleeve having a contour similar to the one of the rail and two facing flat ends with aligned openings to receive a bolt and nut assembly, said sleeves being tangentially welded onto the member so as to extend opposite the upper end recess, whereby fixation of the anchor is achieved by insert-ing the one end of the shank with the chain connected thereto in the upper end of the hollow member after the same has been mounted by its clamps onto the rail, and letting said shank fall down until the pivoting rod contacts the upper end of saime member, the anchor remaining fixed by gravity with the shank inside the member, the chain connected to the one end of the shank inserted into the member extending out of the same through the upper end recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000412247A CA1165187A (en) | 1982-09-27 | 1982-09-27 | Device for detachably fixing a light-weight anchor onto a boat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000412247A CA1165187A (en) | 1982-09-27 | 1982-09-27 | Device for detachably fixing a light-weight anchor onto a boat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1165187A true CA1165187A (en) | 1984-04-10 |
Family
ID=4123662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000412247A Expired CA1165187A (en) | 1982-09-27 | 1982-09-27 | Device for detachably fixing a light-weight anchor onto a boat |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1165187A (en) |
-
1982
- 1982-09-27 CA CA000412247A patent/CA1165187A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |