CA2165241A1 - Quick connect coupling of accessory to motor and a high pressure water jet accessory - Google Patents
Quick connect coupling of accessory to motor and a high pressure water jet accessoryInfo
- Publication number
- CA2165241A1 CA2165241A1 CA 2165241 CA2165241A CA2165241A1 CA 2165241 A1 CA2165241 A1 CA 2165241A1 CA 2165241 CA2165241 CA 2165241 CA 2165241 A CA2165241 A CA 2165241A CA 2165241 A1 CA2165241 A1 CA 2165241A1
- Authority
- CA
- Canada
- Prior art keywords
- housing
- pump
- motor
- motor housing
- accessory
- 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.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/835—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes
- A01D34/90—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes for carrying by the operator
- A01D34/902—Ergonomic provisions
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
- A01D34/416—Flexible line cutters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
- B27B17/08—Drives or gearings; Devices for swivelling or tilting the chain saw
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/06—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for pumps
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Harvester Elements (AREA)
Abstract
A power tool apparatus includes a separate gasoline powered motor with a housing and a self contained system including a fly wheel housing at one end of the motor housing with an output shaft projecting through an end face of the fly wheel housing. The fly wheel housing carries a plurality of sleeve shaped receptacles molded integrally therewith onto which is attached one of a plurality of separate accessories including a high pressure pump as a jet washer, a chain saw attachment, a hedge trimmer attachment or a grass trimmer attachment. The pump includes a pump housing with a longitudinal handle so that the pump is attached directly to the motor and there is provided a wand extending outwardly from the pump with a loop type handle on the wand so that the motor can be supported on a strap and the washer and wand manipulated by the two handles.
Description
2 A :~
QUICK CONNECT COUPLING OF ACCESSORY TO MOTOR AND A HIGH
PRESSURE WATER JET ACCESSORY
BACKGROUND OF THE INVENTION
This invention relates to a power tool apparatus including a 5 plurality of accessories for readily releasable attachment to a single gas powered motor and particularly to a high pressure water pump system including a wand.
Many gasoline powered power tools are available for home and yard use such as weed trimmers, chain saws, hedge trimmers, pressure 10 washers and the like and generally these are manufactured so that each has its own integral power source. U.S. Patent 5,148,992 (Morrow) discloses a pressure washer attachment which uses as a power source the existing motor and drive wand from a weed trimmer. However this arrangement is unsatisfactory in that the finished unit is unwieldy and in that it is difficult to 15 use the same system for providing power to other accessories.
SUMMARY OF THE INVENTION
It is one object of the present invention, therefore, to provide an improved high pressure water jet device.
It is a further object of the present invention to provide an 20 improved power tool apparatus which allows the use of a single power source for a number of accessories.
According to a first aspect of the invention there is provided a high pressure water jet apparatus comprising a portable gasoline powered motor comprising a self-contained motor housing including a fuel tank, an 25 internal combustion engine contained within the housing and an output shaft of the internal combustion engine projecting outwardly from the motor housing, a water pump having a pump housing, a pump body mounted on the pump housing, a water inlet connector on the pump housing, a water outlet connector on the pump housing and an input drive coupling exposed on the pump housing, means for mounting the pump housing on the motor housing such that the output shaft engages into the inlet drive coupling for driving thepump body, and a wand having an inlet end for connection to the outlet connector and an outlet nozzle spaced from the inlet end for discharging the water from the water pump.
According to a second aspect of the invention there is provided a power tool apparatus comprising a portable gas powered motor a self-contained motor housing including a fuel tank, an internal combustion engine contained within the housing and an output shaft of the internal combustion engine projecting outwardly from the motor housing, a plurality of driven accessories each having an accessory housing, an accessory drive member and an input drive coupling exposed on the accessory housing and means for mounting the accessory housing on the motor housing such that the output shaft engages into the inlet drive coupling drive for driving the pump body, wherein said mounting means includes manually actuable means for manually readily releasing and recoupling the pump housing on the motor housing.
One embodiment of the invention will now be described in conjunction with the accompanying drawings in which:
DESCRIPTION OF THE DRAWINGS
Figure 1 is an exploded side elevational view of the power tool apparatus according to the present invention and particularly the high pressure pump assembly for generating a high pressure liquid stream.
Figure 2 is a isometric view showing a chain saw attachment for mounting on the motor in replacement for the pump assembly.
Figure 3 is an isometric view of a hedge trimmer attachment for mounting on the motor in replacement for the pump assembly.
Figure 4 is an isometric view of a grass trimmer for mounting on the motor in replacement for the pump assembly.
2 ~ ~
In the drawings like characters of reference indicate corresponding parts in the different figures.
DETAILED DESCRIPTION
The power tool apparatus comprises a motor 10, a pump 5 assembly 11 and a discharge wand 12. In Figure 1 these are shown in exploded view but it will of course be appreciated that these elements can be interconnected to provide a high pressure washing assembly for generating high pressure fluid in a stream from a nozzle 13 of the wand 12.
The motor 10 comprises a motor housing 14 including a fuel 10 tank 15 and an air cleaner 16 leading to a carburetor (not visible) controlled by a choke 17. The housing includes a cylinder 18 shown only schematically which receives fuel from the fuel tank through the air cleaner and carburetor assembly for operating a single piston two stroke internal combustion engine driving an output shaft 20. A spark plug 21 generates a spark within the 15 cylinder and is fed with high voltage power from a plug lead 22.
The shaft 20 carries a fly wheel 23 mounted in the fly wheel housing 24 at a forward end of the main housing 14. The fly wheel housing provides an end face 25 surrounding an output shaft 26 defined by an end of the shaft 20. The output shaft 26 is splined for supplying power to various 20 accessories as described hereinafter. Around the flywheel housing is provided four sleeves 28 which are welded onto the outside surface of the cylindrical fly wheel housing. Each sleeve has a longitudinally extending bore 29 which is threaded with the female screw thread.
The fly wheel housing is cast or molded directly as an integral 25 element including the sleeves 28 with the fly wheel housing being bolted onto an end face 30 of the main housing 14.
The accessory shown in Figure 1 comprises a pump 11 including a pump housing 31 containing a pump schematically indicated at 32 driven 2 ~ ~
by a shaft 33 from an input drive coupling 34 mounted at an end face 35 of the housing 31.
The housing 31 is formed with four longitudinal bores 37 which extend along the housing around the pump 32 so that each bore can receive 5 a respective one of a plurality of shafts 38 sliding through the bore and engaging into the threaded bore 29 of the fly wheel housing of the motor.
The pump housing 31 includes a water inlet connector 39 and a water outlet connector 40 at an end of the housing 31 opposite to the inlet coupling 34. On a top face 36 of the housing 31 is mounted a longitudinal 10 extending elongate handle 42 which is the pistol grip type around which the hand of the user can grasp. On top of the handle 42 is mounted a lever 43 which can be depressed to actuate a valve 44 operating the water supply to the pump 32. The handle 42 is bolted to the top surface 36 and extends substantially along the full length of the housing. The lever 43 is pivoted at a15 forward end of the housing and depression of the lever pushes the valve 44 downwardly to actuate the water supply to the pump so that water fed to the inlet coupling 39 is pressurized by the pump 32 and discharged at high pressure through the outlet 40.
The wand 12 includes an elongate substantially rigid tube 44 20 with a quick release coupling 45 at an inner end for engaging into the coupling 40 of the housing 31. An opposed end of the tube 44 is cranked at 46 and extends to the nozzle 13 for the discharge of the fluid stream at high pressure. A handle 47 is mounted on a sleeve 48 surrounding the tube 44 with the handle comprising a transverse bar 49 and a coupling arm 50 25 extending from the transverse bar to the sleeve 48.
Each of the shafts 38 includes a male threaded end portion 38A
and a manually operable wing section 38B at an outer end thereof.
2.t~6524,~
A quick release coupling of the pump housing to the motor housing can therefore be effected by carrying the pump housing by the handle 42 to the motor housing to a position which the end face 35 of the pump housing engages against the front end face of the fly wheel housing 5 with the splined shaft 26 engaging into a similar shaped receptacle in the drive coupling 34. The shafts then are moved into place passing through the bores 37 in a sliding action until the threaded portions 38A engage into the bores 29 of the sleeves 28 to clamp the pump housing into place.
In this position the pump is driven by the motor and when 10 supplied with water from the valve 44 generates a high pressure stream of water discharged through the outlet opening 40 to the wand.
The motor includes a pair of brackets 50 and 51 mounted on the top face of the motor housing each of which attaches by a hook 52 to a strap 53 which can engage over the shoulder of an operator to assist the operator 15 in supporting the weight of the motor housing.
With the pump housing and the wand in place, and with the motor supported by the strap 53, the operator can grasp the pump housing by the handle 42 with one hand engaged around the pistol grip section of the handle 42 and resting on top of the lever 43. The second hand of the 20 operator engages onto the transverse bar 49 forming the handle 47 so that the whole device is properly supported by the two hands and the shoulder strap. In this way the whole unit can be simply swiveled and moved into a required orientation for directing the jet from a nozzle 13 toward the required position. As there is little weight in the device outwardly of the pump 25 housing, the wand can be moved readily to the required orientation and the nozzle twisted by rotating the handle about the axis of the tube 44.
Figures 2, 3 and 4 show accessories for use in replacement of the pump assembly and wand of Figure 1.
6 ~5~
Figure 2 shows a chain saw attachment including a hub member 60 having a rear face shaped to engage over the end face of the fly wheel housing of the motor of Figure 1 and including a plate 61 having holes 62 aligned with the bores 29 by which the plate is bolted to the end face of the 5 fly wheel housing. The end plate carries the input drive coupling similar to the drive coupling 34 which is not visible in Figure 2 which connects to a shaft and sprocket also not visible which drive a chain 63 mounted on a support plate 64 and passing over a nose guide 65 of the plate. A loop shaped handle 65 is welded onto the surface of the plate remote from the 10 motor housing. The loop shaped handle 65 includes a vertical bar 66 and two horizontal bars 67 and 68 by which the handle can be manually grasped and the device operated by supporting the motor housing with the strap and by manipulating the device with the handle 65.
Figure 3 shows a further accessory including a plate 61A similar 15 to the plate 61 including holes 62A so that the plate can again be attached to the motor housing in replacement for the other accessories. The plate carries an input drive coupling and the shaft which connect into a wobble box 69 driving a reciprocating cutter blade assembly 70.
In Figure 3 is shown a further accessory which in this case is a 20 grass trimmer of the type including a bottom hub 71 which rotates a whipping cutter 72 underneath a shroud 73. The hub 71 is driven by a flexible shaft provided within a cover tube 74. The cover tube 74 carries a handle 75 in the form of a loop clamped around the tube and standing upwardly therefrom. A second handle 76 is arranged longitudinally of the 25 tube and defines a pistol grip 77 with a trigger 78 for actuating drive of the flexible shaft 79 through a clutch 80 from an input shaft 81 driven by the input drive coupling 82. The input drive coupling is mounted in a housing 83 again including a plate 61 B with holes 62B for engaging onto the end face of 4 ~
the fly wheel housing of the motor of Figure 1. Again the power tool when assembled with the accessory of Figure 4 can be manipulated by the operator grasping the pistol grip with one hand and the loop handle 75 with the other hand while supporting the weight of the motor with the strap and can 5 manipulate the tube 74 to the required location to effect cutting.
Yet further accessories can be provided including accessories such as a generator for electrical power, an air compressor both of which can be supplied in a casing having an upper handle. In one arrangement both the air compressor and the generator can be provided in a single housing with 10 both electrical outlet and a quick disconnect air fitting accessible from theexterior of the housing with a pull start handle for starting actuation of the motor. A small generally rectangular casing can therefore contain all of these elements which are then attached at one end of the casing to the motor as previously described.
A further possible accessory comprises a fishing drive including a shaft and a propeller head at the lower end for mounting on a boat. A yet further possible accessory comprises an auger with the loop handle at the upper end. In each case the mounting includes a mounting plate similar to the plate 61 as previously described which attaches to the motor in a manner 20 previously described.
Since various modifications can be made in my invention as herein above described, and many apparently widely different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the 25 accompanying specification shall be interpreted as illustrative only and not in a limiting sense.
QUICK CONNECT COUPLING OF ACCESSORY TO MOTOR AND A HIGH
PRESSURE WATER JET ACCESSORY
BACKGROUND OF THE INVENTION
This invention relates to a power tool apparatus including a 5 plurality of accessories for readily releasable attachment to a single gas powered motor and particularly to a high pressure water pump system including a wand.
Many gasoline powered power tools are available for home and yard use such as weed trimmers, chain saws, hedge trimmers, pressure 10 washers and the like and generally these are manufactured so that each has its own integral power source. U.S. Patent 5,148,992 (Morrow) discloses a pressure washer attachment which uses as a power source the existing motor and drive wand from a weed trimmer. However this arrangement is unsatisfactory in that the finished unit is unwieldy and in that it is difficult to 15 use the same system for providing power to other accessories.
SUMMARY OF THE INVENTION
It is one object of the present invention, therefore, to provide an improved high pressure water jet device.
It is a further object of the present invention to provide an 20 improved power tool apparatus which allows the use of a single power source for a number of accessories.
According to a first aspect of the invention there is provided a high pressure water jet apparatus comprising a portable gasoline powered motor comprising a self-contained motor housing including a fuel tank, an 25 internal combustion engine contained within the housing and an output shaft of the internal combustion engine projecting outwardly from the motor housing, a water pump having a pump housing, a pump body mounted on the pump housing, a water inlet connector on the pump housing, a water outlet connector on the pump housing and an input drive coupling exposed on the pump housing, means for mounting the pump housing on the motor housing such that the output shaft engages into the inlet drive coupling for driving thepump body, and a wand having an inlet end for connection to the outlet connector and an outlet nozzle spaced from the inlet end for discharging the water from the water pump.
According to a second aspect of the invention there is provided a power tool apparatus comprising a portable gas powered motor a self-contained motor housing including a fuel tank, an internal combustion engine contained within the housing and an output shaft of the internal combustion engine projecting outwardly from the motor housing, a plurality of driven accessories each having an accessory housing, an accessory drive member and an input drive coupling exposed on the accessory housing and means for mounting the accessory housing on the motor housing such that the output shaft engages into the inlet drive coupling drive for driving the pump body, wherein said mounting means includes manually actuable means for manually readily releasing and recoupling the pump housing on the motor housing.
One embodiment of the invention will now be described in conjunction with the accompanying drawings in which:
DESCRIPTION OF THE DRAWINGS
Figure 1 is an exploded side elevational view of the power tool apparatus according to the present invention and particularly the high pressure pump assembly for generating a high pressure liquid stream.
Figure 2 is a isometric view showing a chain saw attachment for mounting on the motor in replacement for the pump assembly.
Figure 3 is an isometric view of a hedge trimmer attachment for mounting on the motor in replacement for the pump assembly.
Figure 4 is an isometric view of a grass trimmer for mounting on the motor in replacement for the pump assembly.
2 ~ ~
In the drawings like characters of reference indicate corresponding parts in the different figures.
DETAILED DESCRIPTION
The power tool apparatus comprises a motor 10, a pump 5 assembly 11 and a discharge wand 12. In Figure 1 these are shown in exploded view but it will of course be appreciated that these elements can be interconnected to provide a high pressure washing assembly for generating high pressure fluid in a stream from a nozzle 13 of the wand 12.
The motor 10 comprises a motor housing 14 including a fuel 10 tank 15 and an air cleaner 16 leading to a carburetor (not visible) controlled by a choke 17. The housing includes a cylinder 18 shown only schematically which receives fuel from the fuel tank through the air cleaner and carburetor assembly for operating a single piston two stroke internal combustion engine driving an output shaft 20. A spark plug 21 generates a spark within the 15 cylinder and is fed with high voltage power from a plug lead 22.
The shaft 20 carries a fly wheel 23 mounted in the fly wheel housing 24 at a forward end of the main housing 14. The fly wheel housing provides an end face 25 surrounding an output shaft 26 defined by an end of the shaft 20. The output shaft 26 is splined for supplying power to various 20 accessories as described hereinafter. Around the flywheel housing is provided four sleeves 28 which are welded onto the outside surface of the cylindrical fly wheel housing. Each sleeve has a longitudinally extending bore 29 which is threaded with the female screw thread.
The fly wheel housing is cast or molded directly as an integral 25 element including the sleeves 28 with the fly wheel housing being bolted onto an end face 30 of the main housing 14.
The accessory shown in Figure 1 comprises a pump 11 including a pump housing 31 containing a pump schematically indicated at 32 driven 2 ~ ~
by a shaft 33 from an input drive coupling 34 mounted at an end face 35 of the housing 31.
The housing 31 is formed with four longitudinal bores 37 which extend along the housing around the pump 32 so that each bore can receive 5 a respective one of a plurality of shafts 38 sliding through the bore and engaging into the threaded bore 29 of the fly wheel housing of the motor.
The pump housing 31 includes a water inlet connector 39 and a water outlet connector 40 at an end of the housing 31 opposite to the inlet coupling 34. On a top face 36 of the housing 31 is mounted a longitudinal 10 extending elongate handle 42 which is the pistol grip type around which the hand of the user can grasp. On top of the handle 42 is mounted a lever 43 which can be depressed to actuate a valve 44 operating the water supply to the pump 32. The handle 42 is bolted to the top surface 36 and extends substantially along the full length of the housing. The lever 43 is pivoted at a15 forward end of the housing and depression of the lever pushes the valve 44 downwardly to actuate the water supply to the pump so that water fed to the inlet coupling 39 is pressurized by the pump 32 and discharged at high pressure through the outlet 40.
The wand 12 includes an elongate substantially rigid tube 44 20 with a quick release coupling 45 at an inner end for engaging into the coupling 40 of the housing 31. An opposed end of the tube 44 is cranked at 46 and extends to the nozzle 13 for the discharge of the fluid stream at high pressure. A handle 47 is mounted on a sleeve 48 surrounding the tube 44 with the handle comprising a transverse bar 49 and a coupling arm 50 25 extending from the transverse bar to the sleeve 48.
Each of the shafts 38 includes a male threaded end portion 38A
and a manually operable wing section 38B at an outer end thereof.
2.t~6524,~
A quick release coupling of the pump housing to the motor housing can therefore be effected by carrying the pump housing by the handle 42 to the motor housing to a position which the end face 35 of the pump housing engages against the front end face of the fly wheel housing 5 with the splined shaft 26 engaging into a similar shaped receptacle in the drive coupling 34. The shafts then are moved into place passing through the bores 37 in a sliding action until the threaded portions 38A engage into the bores 29 of the sleeves 28 to clamp the pump housing into place.
In this position the pump is driven by the motor and when 10 supplied with water from the valve 44 generates a high pressure stream of water discharged through the outlet opening 40 to the wand.
The motor includes a pair of brackets 50 and 51 mounted on the top face of the motor housing each of which attaches by a hook 52 to a strap 53 which can engage over the shoulder of an operator to assist the operator 15 in supporting the weight of the motor housing.
With the pump housing and the wand in place, and with the motor supported by the strap 53, the operator can grasp the pump housing by the handle 42 with one hand engaged around the pistol grip section of the handle 42 and resting on top of the lever 43. The second hand of the 20 operator engages onto the transverse bar 49 forming the handle 47 so that the whole device is properly supported by the two hands and the shoulder strap. In this way the whole unit can be simply swiveled and moved into a required orientation for directing the jet from a nozzle 13 toward the required position. As there is little weight in the device outwardly of the pump 25 housing, the wand can be moved readily to the required orientation and the nozzle twisted by rotating the handle about the axis of the tube 44.
Figures 2, 3 and 4 show accessories for use in replacement of the pump assembly and wand of Figure 1.
6 ~5~
Figure 2 shows a chain saw attachment including a hub member 60 having a rear face shaped to engage over the end face of the fly wheel housing of the motor of Figure 1 and including a plate 61 having holes 62 aligned with the bores 29 by which the plate is bolted to the end face of the 5 fly wheel housing. The end plate carries the input drive coupling similar to the drive coupling 34 which is not visible in Figure 2 which connects to a shaft and sprocket also not visible which drive a chain 63 mounted on a support plate 64 and passing over a nose guide 65 of the plate. A loop shaped handle 65 is welded onto the surface of the plate remote from the 10 motor housing. The loop shaped handle 65 includes a vertical bar 66 and two horizontal bars 67 and 68 by which the handle can be manually grasped and the device operated by supporting the motor housing with the strap and by manipulating the device with the handle 65.
Figure 3 shows a further accessory including a plate 61A similar 15 to the plate 61 including holes 62A so that the plate can again be attached to the motor housing in replacement for the other accessories. The plate carries an input drive coupling and the shaft which connect into a wobble box 69 driving a reciprocating cutter blade assembly 70.
In Figure 3 is shown a further accessory which in this case is a 20 grass trimmer of the type including a bottom hub 71 which rotates a whipping cutter 72 underneath a shroud 73. The hub 71 is driven by a flexible shaft provided within a cover tube 74. The cover tube 74 carries a handle 75 in the form of a loop clamped around the tube and standing upwardly therefrom. A second handle 76 is arranged longitudinally of the 25 tube and defines a pistol grip 77 with a trigger 78 for actuating drive of the flexible shaft 79 through a clutch 80 from an input shaft 81 driven by the input drive coupling 82. The input drive coupling is mounted in a housing 83 again including a plate 61 B with holes 62B for engaging onto the end face of 4 ~
the fly wheel housing of the motor of Figure 1. Again the power tool when assembled with the accessory of Figure 4 can be manipulated by the operator grasping the pistol grip with one hand and the loop handle 75 with the other hand while supporting the weight of the motor with the strap and can 5 manipulate the tube 74 to the required location to effect cutting.
Yet further accessories can be provided including accessories such as a generator for electrical power, an air compressor both of which can be supplied in a casing having an upper handle. In one arrangement both the air compressor and the generator can be provided in a single housing with 10 both electrical outlet and a quick disconnect air fitting accessible from theexterior of the housing with a pull start handle for starting actuation of the motor. A small generally rectangular casing can therefore contain all of these elements which are then attached at one end of the casing to the motor as previously described.
A further possible accessory comprises a fishing drive including a shaft and a propeller head at the lower end for mounting on a boat. A yet further possible accessory comprises an auger with the loop handle at the upper end. In each case the mounting includes a mounting plate similar to the plate 61 as previously described which attaches to the motor in a manner 20 previously described.
Since various modifications can be made in my invention as herein above described, and many apparently widely different embodiments of same made within the spirit and scope of the claims without departing from such spirit and scope, it is intended that all matter contained in the 25 accompanying specification shall be interpreted as illustrative only and not in a limiting sense.
Claims (20)
1. A high pressure water jet apparatus comprising a portable gasoline powered motor comprising a self-contained motor housing including a fuel tank, an internal combustion engine contained within the housing and an output shaft of the internal combustion engine projecting outwardly from the motor housing, a water pump having a pump housing, a pump body mounted on the pump housing, a water inlet connector on the pump housing, a water outlet connector on the pump housing and an input drive coupling exposed on the pump housing, means for mounting the pump housing on the motor housing such that the output shaft engages into the inlet drive coupling for driving the pump body, and a wand having an inlet end for connection to the outlet connector and an outlet nozzle spaced from the inlet end for discharging the water from the water pump.
2. The apparatus according to Claim 1 wherein the pump housing carries a handle and a control lever mounted on the handle for actuating discharge of water to the wand.
3. The apparatus according to Claim 2 wherein the handle comprises an elongate member arranged longitudinally of the pump housing so as to extend forwardly from the motor housing.
4. The apparatus according to Claim 1 including a handle on the wand.
5. The apparatus according to Claim 4 wherein the handle includes a bar transverse to the length of the wand.
6. The apparatus according to Claim 1 wherein the outlet coupling is arranged at an end of the pump housing opposite to said inlet drive coupling.
7. The apparatus according to Claim 1 wherein the pump housing carries a handle comprising an elongate member arranged longitudinally of the pump housing so as to extend forwardly from the motor housing and a control lever mounted on the handle for actuating discharge of water to the wand wherein the wand includes a handle having a bar transverse to the length of the wand and wherein the outlet coupling is arranged at an end of the pump housing opposite to said inlet drive coupling.
8. The apparatus according to Claim 1 wherein said mounting means includes manually actuable means for manually readily releasing and recoupling the pump housing on the motor housing.
9. The apparatus according to Claim 8 wherein the motor housing includes a first end face surrounding the output shaft and wherein the pump housing includes a second end face surrounding the inlet drive coupling and wherein the first end face and the second end face are shaped for interengagement.
10. The apparatus according to Claim 9 wherein the manually actuable means is arranged to engage through the end faces.
11. The apparatus according to Claim 9 wherein the motor housing includes a flywheel housing portion and wherein the first end face is provided on an end of the flywheel housing portion.
12. The apparatus according to Claim 11 wherein the end face lies in a plane substantially radial to the output shaft.
13. The apparatus according to Claim 8 wherein the pump housing includes a plurality of bores surrounding the pump each for receiving an elongate shaft passing through the pump housing and engaging into the motor housing.
14. The apparatus according to Claim 13 in which each of the shafts includes a screw thread portion at an end thereof for engaging the motor housing.
15. The apparatus according to Claim 6 wherein the motor housing includes a strap for support thereof over a shoulder of an operator.
16. A power tool apparatus comprising a portable gas powered motor a self-contained motor housing including a fuel tank, an internal combustion engine contained within the housing and an output shaft of the internal combustion engine projecting outwardly from the motor housing, a plurality of driven accessories each having an accessory housing, an accessory drive member and an input drive coupling exposed on the accessory housing and means for mounting the accessory housing on the motor housing such that the output shaft engages into the inlet drive coupling drive for driving the pump body, wherein said mounting means includes manually actuable means for manually readily releasing and recoupling the pump housing on the motor housing.
17. The apparatus according to Claim 16 wherein the motor housing includes a first end face surrounding the output shaft and wherein the accessory housing includes a second end face surrounding the inlet drive coupling and wherein the first end face and the second end face are shaped for interengagement.
18. The apparatus according to Claim 17 wherein the manually actuable means is arranged to engage through the end faces.
19. The apparatus according to Claim 17 wherein the motor housing includes a flywheel housing portion and wherein the first end face lies in a plane substantially radial to the output shaft and is provided on an end of the flywheel housing portion.
20. The apparatus according to Claim 16 wherein the accessory housing includes a plurality of bores each for receiving an elongate shaft passing through the accessory housing and engaging into the motor housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2165241 CA2165241A1 (en) | 1995-12-14 | 1995-12-14 | Quick connect coupling of accessory to motor and a high pressure water jet accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2165241 CA2165241A1 (en) | 1995-12-14 | 1995-12-14 | Quick connect coupling of accessory to motor and a high pressure water jet accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2165241A1 true CA2165241A1 (en) | 1997-06-15 |
Family
ID=4157168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2165241 Abandoned CA2165241A1 (en) | 1995-12-14 | 1995-12-14 | Quick connect coupling of accessory to motor and a high pressure water jet accessory |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2165241A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1674167A1 (en) * | 2004-12-23 | 2006-06-28 | Alfred Kärcher GmbH & Co. KG | Device for cleaning surfaces |
| CN101690985B (en) * | 2009-09-27 | 2011-09-14 | 华中科技大学 | Hydraulic chain saw |
| WO2016097853A1 (en) * | 2014-12-19 | 2016-06-23 | Daniele Marino | Liquid discharge device |
-
1995
- 1995-12-14 CA CA 2165241 patent/CA2165241A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1674167A1 (en) * | 2004-12-23 | 2006-06-28 | Alfred Kärcher GmbH & Co. KG | Device for cleaning surfaces |
| CN101690985B (en) * | 2009-09-27 | 2011-09-14 | 华中科技大学 | Hydraulic chain saw |
| WO2016097853A1 (en) * | 2014-12-19 | 2016-06-23 | Daniele Marino | Liquid discharge device |
| WO2016097852A1 (en) * | 2014-12-19 | 2016-06-23 | Daniele Marino | Device for emitting a liquid |
| EP3233293B1 (en) | 2014-12-19 | 2021-06-30 | Daniele Marino | Device for emitting a liquid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |