EP0063601A1 - Boat sanding apparatus - an apparatus for sanding the outside of a boat hull - Google Patents

Boat sanding apparatus - an apparatus for sanding the outside of a boat hull

Info

Publication number
EP0063601A1
EP0063601A1 EP81903169A EP81903169A EP0063601A1 EP 0063601 A1 EP0063601 A1 EP 0063601A1 EP 81903169 A EP81903169 A EP 81903169A EP 81903169 A EP81903169 A EP 81903169A EP 0063601 A1 EP0063601 A1 EP 0063601A1
Authority
EP
European Patent Office
Prior art keywords
sanding
lever arm
fitting
hull
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.)
Withdrawn
Application number
EP81903169A
Other languages
German (de)
French (fr)
Inventor
Charles David Druss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0063601A1 publication Critical patent/EP0063601A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
    • B63B59/06—Cleaning devices for hulls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
    • F16M11/2021—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
    • F16M11/2021—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a horizontal axis
    • F16M11/2028—Undercarriages with or without wheels comprising means allowing pivoting adjustment around a horizontal axis for rolling, i.e. for creating a landscape-portrait rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/28—Undercarriages for supports with one single telescoping pillar

Definitions

  • the subject invention is a labor saving device designed to remove the difficult work from the task of sanding the outside surface of a boat hull. It has become standard practice to use a vibrating sanding machine to accomplish this work. The common practice is to hold the machine against the hull by hand. This is a very tiring process and is often harmful to the back because the machine must be held upwards against the bottom of the hull or vertically against the keel or sides.
  • the advantage with the subject invention is that it presents an easy and relatively inexpensive way to accomplish this difficult job by lightening the burden of hand holding the sanding machine against the hull of the boat, while at the same time providing for a comfortable working position for the operator.
  • a supporting leg which is adjustable in length so that it can reach all points on a hull, as well as hulls of varying heights.
  • a pivot fitting is attached by means of a bolt and an adjustable wing nut. This fitting pivots from side to side around the axis of the bolt.
  • the fitting has, at its upper edge, a second bolt which has its axis perpendicular to the attachment bolt, and in turn supports a lever arm.
  • This lever arm is perpendicular to the pivot fitting and functions as a handle on one end and for the attachment of a vibrating sanding machine at the other end by the use of a bolt whose axis is parallel to the lever arm pivot axis.
  • the sanding machine is attached to this pivot axle by means of an ordinary hose clamp, or other means for holding the sander. There are, therefore, three pivoting axes.
  • the sanding machine can be held against the area of the hull to be worked on by pressing down on the handle end of the lever arm, thereby forcing the sanding surface against the hull due to the upward motion of the other end of the lever arm.
  • the individual using the device can guide the sanding machine back and forth over the surface of the hull while at the same time remain in a comfortable working position; exerting a minimum of pressure on the lever arm sufficient in order to achieve the required force at the sanding machine end.
  • Figure 1 shows a cross-section of one side of a beat hull with a sanding machine shewn at various positions along the hull;
  • Figure 2 shows a perspective view of the holder of this invention
  • Figure 3 shows a perspective view from the opposite direction of Figure 2;
  • Figure 4 shows a perspective view of the lever arm with the sanding machine attached
  • Figure 5 is a cross-section through the support leg and the lever arm at the pivot fitting in one of the fitting's two mounting positions, which gives a limited swing radius to the lever arm in its lateral swinging movement;
  • Figure 6 is sectioned as in Figure 5 showing the pivot fitting in an alternative attachment position, which permits a full swinging of 90o of the lever arm in its lateral swinging movement to the full horizontal position so that the sanding machine's sanding surface can be brought to bear on a vertical surface.
  • the sanding machine 10 must be able be held against the hull 11 vertically upward (10a) at an upward slant (10b) or facing sidewise (10c).
  • the sanding machine 10 When holding the sander by hand, one must support the weight of the machine while at the same time exerting pressure to the hull at the sanding surface so as to effectively sand the hull.
  • the device consists of a leg 12 which is composed of two telescoping sections 13 and 14 which can be adjusted in length and locked together by means of screw 15.
  • the upper section 17 of the upper internal support leg 14 is flattened.
  • the pivot fitting 18 consists of a steel plate 19 whose side edges are bent upwardly to form two sice flanges
  • flanges 20,21 are in turn drilled to accept a second bolt or pivot axle 22 which extends through the two flanges 20. 21 and through a lever arm 23 which pivots around axle 22, adjacent the flange 21.
  • One end of the lever arm 24 is enlarged to serve as a handle 25; the other end 26 is pivotally secured to a hose clamp 27 which in turn holds the sanding machine. This is a conventional hose clamp and can be tighened by means of screw 28.
  • the hose or sanding machine holder 27 is drilled to accept axle bolt 29 thereby making it pivotable around axle
  • Axle 29 and axle 22 are parallel to one another.
  • the upper end 16 of the support leg 14 can be attached to the inside surface of the pivot fitting 18 between the flanges 20 and 21.
  • the device is thereby set, as seen in Figure 5, so that pivot action of the fitting 18 in relation to the upper end 16 of the support leg 14 is limited by the flanges 20 and 21.
  • the pivot action of the fitting 18 in relation to the upper end 16 of the support leg 14 is limited after a rotation corresponding to angle A to either side of the vertical position as shown in Figure 5.
  • Flanges 20 and 21 serve as stops for the rotating action of the support leg and the pivot fitting in relation to each other.
  • the assembly as shown in Figure 5 is used when the device is being used on horizontal undersurfaces of the hull.
  • the weight of the machine can be comfortably supported by the lever arm by holding the opposite end 25 with one hand. With the other hand one holds the supporting leg just below the pivot fitting 18, and guides the machine over the surface of the hull in a swinging motion. Because of the mechanical advantage achieved by the use of the lever arm, a considerable amount of force can be brought to bear at the sanding surface and thereby attain the desired results.
  • the lever arm is swung to the vertical position and pressure is applied directly to the sanding machine to achieve the desired results.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Pour le poncage de la surface externe d'une coque de bateau, on utilise un dispositif qui consiste en une jambe support (12) qui, au moyen d'un pivot, supporte un bras de levier (23). L'une des extremites du bras de levier est une poignee (25) et l'autre extremite supporte un organe de prehension pivotant (27) tenant la ponceuse vibrante. Lorsque la surface abrasive de la ponceuse est placee contre la coque du bateau, elle reste automatiquement en contact total avec cette coque en raison du pivotement du dispositif.For sanding the external surface of a boat hull, a device is used which consists of a support leg (12) which, by means of a pivot, supports a lever arm (23). One end of the lever arm is a handle (25) and the other end supports a pivoting gripping member (27) holding the orbital sander. When the abrasive surface of the sander is placed against the hull of the boat, it automatically remains in total contact with this hull due to the pivoting of the device.

Description

Titie: BOAT SANDING APPARATUS - AN APPARATUS FOR SANDING THE OUTSIDE OF A BOAT HULL
The subject invention is a labor saving device designed to remove the difficult work from the task of sanding the outside surface of a boat hull. It has become standard practice to use a vibrating sanding machine to accomplish this work. The common practice is to hold the machine against the hull by hand. This is a very tiring process and is often harmful to the back because the machine must be held upwards against the bottom of the hull or vertically against the keel or sides.
The advantage with the subject invention is that it presents an easy and relatively inexpensive way to accomplish this difficult job by lightening the burden of hand holding the sanding machine against the hull of the boat, while at the same time providing for a comfortable working position for the operator.
This is accomplished by the presence of a supporting leg which is adjustable in length so that it can reach all points on a hull, as well as hulls of varying heights. At the upper end of the leg a pivot fitting is attached by means of a bolt and an adjustable wing nut. This fitting pivots from side to side around the axis of the bolt. The fitting has, at its upper edge, a second bolt which has its axis perpendicular to the attachment bolt, and in turn supports a lever arm. This lever arm is perpendicular to the pivot fitting and functions as a handle on one end and for the attachment of a vibrating sanding machine at the other end by the use of a bolt whose axis is parallel to the lever arm pivot axis. The sanding machine is attached to this pivot axle by means of an ordinary hose clamp, or other means for holding the sander. There are, therefore, three pivoting axes. With the help of this invention, the sanding machine can be held against the area of the hull to be worked on by pressing down on the handle end of the lever arm, thereby forcing the sanding surface against the hull due to the upward motion of the other end of the lever arm. In this way the individual using the device can guide the sanding machine back and forth over the surface of the hull while at the same time remain in a comfortable working position; exerting a minimum of pressure on the lever arm sufficient in order to achieve the required force at the sanding machine end.
A schematic drawing of the subject is included.
Figure 1 shows a cross-section of one side of a beat hull with a sanding machine shewn at various positions along the hull;
Figure 2 shows a perspective view of the holder of this invention;
Figure 3 shows a perspective view from the opposite direction of Figure 2;
Figure 4 shows a perspective view of the lever arm with the sanding machine attached;
Figure 5 is a cross-section through the support leg and the lever arm at the pivot fitting in one of the fitting's two mounting positions, which gives a limited swing radius to the lever arm in its lateral swinging movement; and
Figure 6 is sectioned as in Figure 5 showing the pivot fitting in an alternative attachment position, which permits a full swinging of 90º of the lever arm in its lateral swinging movement to the full horizontal position so that the sanding machine's sanding surface can be brought to bear on a vertical surface.
As shown in Figure 1, the sanding machine 10 must be able be held against the hull 11 vertically upward (10a) at an upward slant (10b) or facing sidewise (10c). When holding the sander by hand, one must support the weight of the machine while at the same time exerting pressure to the hull at the sanding surface so as to effectively sand the hull.
Without additional help, this can be a very tiring job.
This help is provided by the subject invention thereby making the job considerably easier. As shown in Figures 2 and 3, the device consists of a leg 12 which is composed of two telescoping sections 13 and 14 which can be adjusted in length and locked together by means of screw 15. The upper section 17 of the upper internal support leg 14 is flattened. There is a hole in this flattened area through which a pivot axle, bolt 17 is passed so as to fasten the pivot fitting 18 to the upper end of the support leg and thereby providing a pivot point so that the leg and the pivot fitting can rotate in relation to one another.
The pivot fitting 18 consists of a steel plate 19 whose side edges are bent upwardly to form two sice flanges
20 and 21, These flanges 20,21 are in turn drilled to accept a second bolt or pivot axle 22 which extends through the two flanges 20. 21 and through a lever arm 23 which pivots around axle 22, adjacent the flange 21. One end of the lever arm 24 is enlarged to serve as a handle 25; the other end 26 is pivotally secured to a hose clamp 27 which in turn holds the sanding machine. This is a conventional hose clamp and can be tighened by means of screw 28.
The hose or sanding machine holder 27 is drilled to accept axle bolt 29 thereby making it pivotable around axle
29 while at the same time attaching the holder 27 to the end of the lever arm 26. Axle 29 and axle 22 are parallel to one another.
It can be seen in Figures 2 and 5 that the upper end 16 of the support leg 14 can be attached to the inside surface of the pivot fitting 18 between the flanges 20 and 21. The device is thereby set, as seen in Figure 5, so that pivot action of the fitting 18 in relation to the upper end 16 of the support leg 14 is limited by the flanges 20 and 21. The pivot action of the fitting 18 in relation to the upper end 16 of the support leg 14 is limited after a rotation corresponding to angle A to either side of the vertical position as shown in Figure 5. Flanges 20 and 21 serve as stops for the rotating action of the support leg and the pivot fitting in relation to each other. The assembly as shown in Figure 5 is used when the device is being used on horizontal undersurfaces of the hull. When the sanding of vertical portions of the hull is required, the pivot bolt 17 is removed and the pivot fitting 18 is reversed in relation to the upper end 16 of the support leg 14. This assembly can be seen in Figure 6. In this position the pivot fitting 18 can be rotated 90 degrees, angle B in Figure 6, in relation to upper end 16 from the vertical mid-point.
Because of the fact that the construction of the subject invention is so simple, it can be produced at a relatively low cost.
After the sanding machine is secured in holder 27 the weight of the machine can be comfortably supported by the lever arm by holding the opposite end 25 with one hand. With the other hand one holds the supporting leg just below the pivot fitting 18, and guides the machine over the surface of the hull in a swinging motion. Because of the mechanical advantage achieved by the use of the lever arm, a considerable amount of force can be brought to bear at the sanding surface and thereby attain the desired results. When working on vertical surfaces such as the sides and the keel of the boat, the lever arm is swung to the vertical position and pressure is applied directly to the sanding machine to achieve the desired results.
Practical application of the invention has shown that it provides the user with a comfortable means to do an otherwise uncomfortable and tiresome job.

Claims

WHAT IS CLAIMED IS:
1. A device for supporting a powered sanding device for working on the outside surfaces of a boat hull, the device comprising a telescoping supporting member having a longitudinal axis; a fitting member pivotally supported on the upper end of the supporting member about a first transverse axis; a lever arm pivotally supported on the fitting member about a second transverse axis substantially perpendicular to the first transverse axis and longitudinally removed from the first axis; a handle at one end of the lever arm; and an attachment means for holding a powered sanding device, the attachment means being pivotally attached to the second end of the lever arm about a holder axis parallel to the second transverse axis.
2. The device of Claim 1 wherein the fitting has flanged edges, and wherein the fitting can be secured to the supporting member in a first position wherein the flange members can act as stops against the supporting member to limit the maximum angle of rotation of the fitting, and in a second position wherein the flanges cannot contact the supporting member.
EP81903169A 1980-11-04 1981-11-04 Boat sanding apparatus - an apparatus for sanding the outside of a boat hull Withdrawn EP0063601A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8007731A SE8007731L (en) 1980-11-04 1980-11-04 DEVICE FOR GRINDING THE EXTERNAL BATHROOM
SE8007731 1980-11-04

Publications (1)

Publication Number Publication Date
EP0063601A1 true EP0063601A1 (en) 1982-11-03

Family

ID=20342157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81903169A Withdrawn EP0063601A1 (en) 1980-11-04 1981-11-04 Boat sanding apparatus - an apparatus for sanding the outside of a boat hull

Country Status (3)

Country Link
EP (1) EP0063601A1 (en)
SE (1) SE8007731L (en)
WO (1) WO1982001579A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US409852A (en) * 1889-08-27 Bracket for electric lamps
US660049A (en) * 1900-02-05 1900-10-16 Caleb E Cook Universal support.
US812774A (en) * 1905-08-12 1906-02-13 Hardsocg Wonder Drill Company Rock-drill.
US1125480A (en) * 1913-11-18 1915-01-19 Howard P Corsa Mine-drill support.
US1447877A (en) * 1921-02-04 1923-03-06 George H Little Support for pneumatic tools
US1511630A (en) * 1921-03-21 1924-10-14 Ozlek Morris Adjustable lamp
US2861767A (en) * 1953-10-30 1958-11-25 Oves Marks Martin Unipod accordion support
US3205522A (en) * 1963-08-28 1965-09-14 Karl P Then Universally adjustable tool holder
US3357663A (en) * 1965-10-11 1967-12-12 Leon H Ivy Antenna support clamp assembly
US3629978A (en) * 1970-04-20 1971-12-28 Norton Co Apparatus with selectively rigid and flexible support cable
US3740901A (en) * 1970-04-20 1973-06-26 Norton Co Apparatus with selectively rigid and flexible support cable

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8201579A1 *

Also Published As

Publication number Publication date
WO1982001579A1 (en) 1982-05-13
SE8007731L (en) 1982-05-05

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Effective date: 19830112