CA2708827C - Carry handle support for a portable pump assembly - Google Patents
Carry handle support for a portable pump assembly Download PDFInfo
- Publication number
- CA2708827C CA2708827C CA2708827A CA2708827A CA2708827C CA 2708827 C CA2708827 C CA 2708827C CA 2708827 A CA2708827 A CA 2708827A CA 2708827 A CA2708827 A CA 2708827A CA 2708827 C CA2708827 C CA 2708827C
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- Canada
- Prior art keywords
- crankcase
- pump assembly
- mounting
- handle support
- support according
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/06—Mobile combinations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/06—Mobile combinations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
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- 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
- F16M3/00—Portable or wheeled frames or beds, e.g. for emergency power-supply aggregates, compressor sets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
A carry handle is supported on a portable pump assembly by providing a carry handle support arranged to be supported on the pump assembly. The support is suited for mounting on a pump assembly typically including a backpack frame supporting a crankcase extending in a longitudinal direction between a first end and a second end, a motor coupled to the crankcase, a fan cowl coupled to the first end of the crankcase, and a pumping chamber coupled to the second end of crank case. The handle support includes a frame portion spanning between a first mounting portion coupled to the first end of the crankcase and a second mounting portion coupled to the fan cowl and a handle portion supported on the frame portion between the first and second mounting portions which is arranged to be gripped in hand of a user.
Description
CARRY HANDLE SUPPORT FOR A PORTABLE PUMP ASSEMBLY
FIELD OF THE INVENTION
The present invention relates to a support frame for supporting a carry handle on a portable pump assembly, for example a Mark-3 pump supported on a portable backpack frame.
BACKGROUND
In forest firefighting, it is common for firefighters to use portable pumps which are carried on a backpack. The pumps are portable to allow carrying into a forest or otherwise difficult to access areas for connection to hoses for pumping water from a suitable source to a location of a fire or potential fire.
One common type of portable pump assembly comprises a Mark-3 pump which is well suited for carrying on the back of a user. The pump assembly typically comprises a backpack frame which is elongate in a longitudinal direction for defining a bottom side of the pump when supported horizontally on the ground.
A
central crankcase is supported above the frame in connection between a fan cowl at one end of the crankcase and a centrifugal pumping chamber at the other end. A
motor is coupled above the crankcase opposite the backpack frame in the form of a single cylinder, two cycle, air cooled motor. The Mark-3 pump is typically difficult to carry with one hand unless the frame is pivoted upwardly into a backpack orientation where the backpack frame spans the back of the user. Transportation and handling other than in a backpack orientation however is difficult and awkward. When storing the pump, typically the pumps cannot be stacked upon one another due to the protruding components on top of the motor such that each pump must be supported on a respective frame or shelf for storage.
FIELD OF THE INVENTION
The present invention relates to a support frame for supporting a carry handle on a portable pump assembly, for example a Mark-3 pump supported on a portable backpack frame.
BACKGROUND
In forest firefighting, it is common for firefighters to use portable pumps which are carried on a backpack. The pumps are portable to allow carrying into a forest or otherwise difficult to access areas for connection to hoses for pumping water from a suitable source to a location of a fire or potential fire.
One common type of portable pump assembly comprises a Mark-3 pump which is well suited for carrying on the back of a user. The pump assembly typically comprises a backpack frame which is elongate in a longitudinal direction for defining a bottom side of the pump when supported horizontally on the ground.
A
central crankcase is supported above the frame in connection between a fan cowl at one end of the crankcase and a centrifugal pumping chamber at the other end. A
motor is coupled above the crankcase opposite the backpack frame in the form of a single cylinder, two cycle, air cooled motor. The Mark-3 pump is typically difficult to carry with one hand unless the frame is pivoted upwardly into a backpack orientation where the backpack frame spans the back of the user. Transportation and handling other than in a backpack orientation however is difficult and awkward. When storing the pump, typically the pumps cannot be stacked upon one another due to the protruding components on top of the motor such that each pump must be supported on a respective frame or shelf for storage.
2 SUMMARY OF THE INVENTION
According to one aspect of the invention there is provided a carry handle support for a pump assembly comprising a crankcase extending in a longitudinal direction between a first end and a second end, a motor coupled to the crankcase, a fan cowl coupled to the first end of the crankcase, and a pumping chamber coupled to the second end of crankcase, the carry handle support comprising:
a first mounting portion arranged for mounting onto the pump assembly adjacent to the first end of the crankcase;
a second mounting portion arranged for mounting onto the pump assembly adjacent the second end of the crankcase;
a frame portion spanning between the first and second mounting portions; and a handle portion supported on frame portion between the first and second mounting portions and being arranged to be gripped in a hand of a user.
According to a second aspect of the present invention there is provided a method of supporting a handle on a pump assembly comprising a crankcase extending in a longitudinal direction between a first end and a second end, a motor coupled to the crankcase, a fan cowl coupled to the first end of the crankcase, and a pumping chamber coupled to the second end of crankcase, the method comprising:
providing a carry handle support comprising a frame portion spanning between a first mounting portion and a second mounting portion and a handle portion supported on the frame portion between the first and second mounting portions which is arranged to be gripped in a hand of a user;
mounting the first mounting portion onto the pump assembly adjacent to the first end of the crankcase; and
According to one aspect of the invention there is provided a carry handle support for a pump assembly comprising a crankcase extending in a longitudinal direction between a first end and a second end, a motor coupled to the crankcase, a fan cowl coupled to the first end of the crankcase, and a pumping chamber coupled to the second end of crankcase, the carry handle support comprising:
a first mounting portion arranged for mounting onto the pump assembly adjacent to the first end of the crankcase;
a second mounting portion arranged for mounting onto the pump assembly adjacent the second end of the crankcase;
a frame portion spanning between the first and second mounting portions; and a handle portion supported on frame portion between the first and second mounting portions and being arranged to be gripped in a hand of a user.
According to a second aspect of the present invention there is provided a method of supporting a handle on a pump assembly comprising a crankcase extending in a longitudinal direction between a first end and a second end, a motor coupled to the crankcase, a fan cowl coupled to the first end of the crankcase, and a pumping chamber coupled to the second end of crankcase, the method comprising:
providing a carry handle support comprising a frame portion spanning between a first mounting portion and a second mounting portion and a handle portion supported on the frame portion between the first and second mounting portions which is arranged to be gripped in a hand of a user;
mounting the first mounting portion onto the pump assembly adjacent to the first end of the crankcase; and
3 mounting the second mounting portion onto the pump assembly adjacent the second end of the crankcase.
The first mounting portion is preferably arranged to be coupled to existing fasteners on the crankcase at laterally spaced apart positions on the crankcase.
The second mounting portion is preferably arranged to be coupled to existing fasteners on the fan cowl at laterally spaced part positions on the fan cowl.
In some embodiments, the handle portion may be supported on the frame portion so as to be freely slidable relative to the pump assembly in a direction which is perpendicular to the longitudinal direction of crankcase so as to vary a distance of the handle portion from the crankcase.
Preferably the handle portion is supported on the frame portion so as to be substantially aligned with a center of gravity of the pump assembly in the longitudinal direction of the crankcase.
When the first mounting portion comprises first mounting apertures and the second mounting portion comprises second mounting apertures, the first and second mounting apertures may be oriented perpendicularly to one another.
The frame portion preferably comprises two side plates which are parallel and spaced apart from one another such that the handle portion spans between the two side plates perpendicularly to the two side plates.
The two side plates are preferably joined at a fixed space relative to one another at both ends adjacent the first and second mounting portions respectively.
More particularly, the first mounting portion may comprise a mounting plate joined between the two side plates so as to span perpendicularly to the two side plates and there may be provided a cross member comprising a plate joined between the two
The first mounting portion is preferably arranged to be coupled to existing fasteners on the crankcase at laterally spaced apart positions on the crankcase.
The second mounting portion is preferably arranged to be coupled to existing fasteners on the fan cowl at laterally spaced part positions on the fan cowl.
In some embodiments, the handle portion may be supported on the frame portion so as to be freely slidable relative to the pump assembly in a direction which is perpendicular to the longitudinal direction of crankcase so as to vary a distance of the handle portion from the crankcase.
Preferably the handle portion is supported on the frame portion so as to be substantially aligned with a center of gravity of the pump assembly in the longitudinal direction of the crankcase.
When the first mounting portion comprises first mounting apertures and the second mounting portion comprises second mounting apertures, the first and second mounting apertures may be oriented perpendicularly to one another.
The frame portion preferably comprises two side plates which are parallel and spaced apart from one another such that the handle portion spans between the two side plates perpendicularly to the two side plates.
The two side plates are preferably joined at a fixed space relative to one another at both ends adjacent the first and second mounting portions respectively.
More particularly, the first mounting portion may comprise a mounting plate joined between the two side plates so as to span perpendicularly to the two side plates and there may be provided a cross member comprising a plate joined between the two
4 side plates so as to span perpendicularly to the two side plates across the motor of the pump assembly adjacent the second mounting portion.
Preferably there is provided at least one access opening in the cross member in alignment with at least one cylinder head stud of the motor of the pump assembly.
The frame portion may comprise a longitudinal portion extending in the longitudinal direction of the crankcase between the second mounting portion and the handle portion and a radial portion extending perpendicularly to the longitudinal direction from the first mounting portion radially outwardly from the crankcase to the handle portion.
When the pump assembly comprises a common frame spanning in the longitudinal direction of the crankcase along a bottom side of the pump assembly, the handle portion is preferably supported on the frame portion so as to be arranged to be located relative to the crankcase opposite from the common frame, above the motor of the pump assembly to define an uppermost portion of the pump assembly.
By providing a handle portion which is supported centrally above the motor opposite the frame of the pump assembly, the pump can be readily handled and transported with a single hand of a user which permits balanced lifting of the assembly with the longitudinal frame remaining in a generally horizontal orientation.
The configuration of the frame portion spanning between first and second ends of the crankcase above the motor also provides protection for the spark plug of the motor while also providing a suitable support opposite the frame at the bottom side such that a pallet can be supported directly on top of the frame portion of several pump assemblies with carry handle supports thereon for stacking further pumps in layers with pallets or stacking frames therebetween.
By configuring the first and second mounting portions to be coupled to existing fasteners of the pump assembly, no modification to the pump assembly is required for mounting the carry handle in place in a stable configuration. The access holes in the frame portion provide access to the cylinder head studs to allow torquing
Preferably there is provided at least one access opening in the cross member in alignment with at least one cylinder head stud of the motor of the pump assembly.
The frame portion may comprise a longitudinal portion extending in the longitudinal direction of the crankcase between the second mounting portion and the handle portion and a radial portion extending perpendicularly to the longitudinal direction from the first mounting portion radially outwardly from the crankcase to the handle portion.
When the pump assembly comprises a common frame spanning in the longitudinal direction of the crankcase along a bottom side of the pump assembly, the handle portion is preferably supported on the frame portion so as to be arranged to be located relative to the crankcase opposite from the common frame, above the motor of the pump assembly to define an uppermost portion of the pump assembly.
By providing a handle portion which is supported centrally above the motor opposite the frame of the pump assembly, the pump can be readily handled and transported with a single hand of a user which permits balanced lifting of the assembly with the longitudinal frame remaining in a generally horizontal orientation.
The configuration of the frame portion spanning between first and second ends of the crankcase above the motor also provides protection for the spark plug of the motor while also providing a suitable support opposite the frame at the bottom side such that a pallet can be supported directly on top of the frame portion of several pump assemblies with carry handle supports thereon for stacking further pumps in layers with pallets or stacking frames therebetween.
By configuring the first and second mounting portions to be coupled to existing fasteners of the pump assembly, no modification to the pump assembly is required for mounting the carry handle in place in a stable configuration. The access holes in the frame portion provide access to the cylinder head studs to allow torquing
5 of the studs while the spark plug at the top of the motor remains protected.
The handle portion can also be adjustable relative to the frame portion to allow varying clearance for spark plug tools without requiring the carry handle support to be removed from the pump assembly.
The first mounting portion is separable from the remainder of the frame portion to simplify the mounting process of the carry handle support onto the pump assembly. The spaced apart mounting locations of both the first and second mounting portions distribute the weight transferred between the pump assembly and the handle portion evenly to minimize stress on the pump assembly or potential cracking of the cowl.
Various embodiments of the invention will now be described in conjunction with the accompanying drawings in which:
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective view of a first embodiment of the carry handle support mounted on a pump assembly.
Figure 2 is a perspective view of the first embodiment of the carry handle support shown separated from the pump assembly.
Figure 3 is a top plan view, Figure 4 is a first side elevational view, and Figure 5 is a bottom plan view of the first embodiment of the carry handle support.
The handle portion can also be adjustable relative to the frame portion to allow varying clearance for spark plug tools without requiring the carry handle support to be removed from the pump assembly.
The first mounting portion is separable from the remainder of the frame portion to simplify the mounting process of the carry handle support onto the pump assembly. The spaced apart mounting locations of both the first and second mounting portions distribute the weight transferred between the pump assembly and the handle portion evenly to minimize stress on the pump assembly or potential cracking of the cowl.
Various embodiments of the invention will now be described in conjunction with the accompanying drawings in which:
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a perspective view of a first embodiment of the carry handle support mounted on a pump assembly.
Figure 2 is a perspective view of the first embodiment of the carry handle support shown separated from the pump assembly.
Figure 3 is a top plan view, Figure 4 is a first side elevational view, and Figure 5 is a bottom plan view of the first embodiment of the carry handle support.
6 Figure 6 is an outer side elevational view, Figure 7 is a second side elevational view, and Figure 8 is an inner side elevational view of the first embodiment of the carry handle support.
Figure 9 is a perspective view of a second embodiment of the carry handle support shown separated from the pump assembly.
Figure 10 is a top plan view, Figure 11 is a first side elevational view, and Figure 12 is a bottom plan view of the second embodiment of the carry handle support.
Figure 13 is an outer side elevational view, Figure 14 is a second side elevational view, and Figure 15 is an inner side elevational view of the second embodiment of the carry handle support.
In the drawings like characters of reference indicate corresponding parts in the different figures.
DETAILED DESCRIPTION
Referring to the accompanying figures there is illustrated a carry handle support generally indicated by reference numeral 10. The support 10 is typically suited for use with a portable pump assembly 12, and more particularly with a pump assembly known as a Mark-3 pump which is portable as a backpack.
The pump assembly 12 typically comprises a backpack frame 14 comprising two side rails 16 extending generally in a longitudinal direction in which the frame 14 is elongate. The two rails are joined at opposing ends by respective U-shaped cross bars 18 as well as being joined at spaced apart intermediate locations by intermediate cross bars 20.
A crankcase 22 is supported above the frame when the frame 14 defines a bottom of the pump assembly when supported horizontally along the
Figure 9 is a perspective view of a second embodiment of the carry handle support shown separated from the pump assembly.
Figure 10 is a top plan view, Figure 11 is a first side elevational view, and Figure 12 is a bottom plan view of the second embodiment of the carry handle support.
Figure 13 is an outer side elevational view, Figure 14 is a second side elevational view, and Figure 15 is an inner side elevational view of the second embodiment of the carry handle support.
In the drawings like characters of reference indicate corresponding parts in the different figures.
DETAILED DESCRIPTION
Referring to the accompanying figures there is illustrated a carry handle support generally indicated by reference numeral 10. The support 10 is typically suited for use with a portable pump assembly 12, and more particularly with a pump assembly known as a Mark-3 pump which is portable as a backpack.
The pump assembly 12 typically comprises a backpack frame 14 comprising two side rails 16 extending generally in a longitudinal direction in which the frame 14 is elongate. The two rails are joined at opposing ends by respective U-shaped cross bars 18 as well as being joined at spaced apart intermediate locations by intermediate cross bars 20.
A crankcase 22 is supported above the frame when the frame 14 defines a bottom of the pump assembly when supported horizontally along the
7 ground. The crankcase extends in the longitudinal direction between a pump chamber 24 at a first end of the crankcase and a fan cowl 26 surrounding a respective fan at the second end thereof. The central shaft of the crankcase rotates about a respective longitudinal axis extending in the longitudinal direction between the rotor of the pump chamber at one end and the fan at the other end. The pump chamber comprises a centrifugal pump casing within which the rotor is rotatable for pumping fluid therethrough from the inlet to the outlet of the pump. The pump assembly further comprises a motor 28 supported above the crankcase at the top end of the pump assembly opposite the frame 14 spanning the bottom side. The motor comprises a single cylinder enclosed by a cylinder head which is secured at the top side of the motor by foil: head studs.
Although various embodiments of the carry handle support are described and illustrated in the accompanying specification, the common features of the various embodiments will first be described.
The carry handle support 10 generally comprises two side plates 30 which are parallel and spaced apart from one another to define a frame portion which extends between a first mounting portion 32 at a first end of the crankcase and a second mounting portion 34 arranged to be coupled at the second end of the crankcase.
The first mcunting portion 32 comprises a mounting plate arranged to be oriented generally perpendicularly to the longitudinal direction of the crankcase. The first mounting portion thus defines a first plate portion which includes a pair of laterally spaced apart mounting apertures 36 formed therein which are positioned for alignment with respective existing fasteners at the first end of the crankcase. The mounting plate is suitably shaped for extending partway about the circumference of
Although various embodiments of the carry handle support are described and illustrated in the accompanying specification, the common features of the various embodiments will first be described.
The carry handle support 10 generally comprises two side plates 30 which are parallel and spaced apart from one another to define a frame portion which extends between a first mounting portion 32 at a first end of the crankcase and a second mounting portion 34 arranged to be coupled at the second end of the crankcase.
The first mcunting portion 32 comprises a mounting plate arranged to be oriented generally perpendicularly to the longitudinal direction of the crankcase. The first mounting portion thus defines a first plate portion which includes a pair of laterally spaced apart mounting apertures 36 formed therein which are positioned for alignment with respective existing fasteners at the first end of the crankcase. The mounting plate is suitably shaped for extending partway about the circumference of
8 the crankcase at the first end thereof.
The mounting plate defining the first mounting portion includes a pair of end flanges 38 at laterally spaced apart ends thereof which are perpendicular to the mounting plate for overlapping the first ends of respective ones of the two side plates 30. Cooperating apertures in the end flanges 38 and the side plates 30 receive fasteners therethrough for fastening through the apertures along a common horizontal axis extending laterally between the two side plates. The fasteners serve to fix the side plates relative to the mounting plate defining the first portion 32 in the mounted position on the pump assembly. The first mounting portion thus secures the two side plates at a fixed spacing therebetween at the first end thereof.
The second mounting portion 34 comprises an end portion of each of the two side plates at the second ends thereof opposite the first ends supporting the first mounting portion thereon. Each end portion of the second mounting portion 34 defines a second plate portion for connection to a respective one of the mounts on the fan cowl. The second plate portions are integral and coplanar with the side plates of the frame portion so as to be spaced apart and parallel to one another so as to be oriented perpendicularly to the first plate portion. A mounting aperture 40 is located in each end portion with the end portions lying in common planes with the side plates respectively so as to be perpendicular to the mounting plate forming the first mounting portion. The first mounting apertures 36 of the first mounting portion are thus perpendicular to the second mounting apertures 40 of the second mounting portion.
The mounting apertures 40 in the end portions of the side plates defining the second mounting portion are arranged for alignment with respective ones of a pair of laterally spaced apart fasteners 42 at the top end of the fan cowl farthest from the two side rails defining the bottom frame 14. The existing fasteners 42 of the
The mounting plate defining the first mounting portion includes a pair of end flanges 38 at laterally spaced apart ends thereof which are perpendicular to the mounting plate for overlapping the first ends of respective ones of the two side plates 30. Cooperating apertures in the end flanges 38 and the side plates 30 receive fasteners therethrough for fastening through the apertures along a common horizontal axis extending laterally between the two side plates. The fasteners serve to fix the side plates relative to the mounting plate defining the first portion 32 in the mounted position on the pump assembly. The first mounting portion thus secures the two side plates at a fixed spacing therebetween at the first end thereof.
The second mounting portion 34 comprises an end portion of each of the two side plates at the second ends thereof opposite the first ends supporting the first mounting portion thereon. Each end portion of the second mounting portion 34 defines a second plate portion for connection to a respective one of the mounts on the fan cowl. The second plate portions are integral and coplanar with the side plates of the frame portion so as to be spaced apart and parallel to one another so as to be oriented perpendicularly to the first plate portion. A mounting aperture 40 is located in each end portion with the end portions lying in common planes with the side plates respectively so as to be perpendicular to the mounting plate forming the first mounting portion. The first mounting apertures 36 of the first mounting portion are thus perpendicular to the second mounting apertures 40 of the second mounting portion.
The mounting apertures 40 in the end portions of the side plates defining the second mounting portion are arranged for alignment with respective ones of a pair of laterally spaced apart fasteners 42 at the top end of the fan cowl farthest from the two side rails defining the bottom frame 14. The existing fasteners 42 of the
9 fan cowl are spaced apart in the lateral direction similarly to the space between the existing fasteners at the first end of the crankcase to which the first mounting portion is secured.
The space between the two side plates at the second end of the frame -- portion is fixed by a cross member 44 spanning between the two side plates overtop of the cylinder head of the motor adjacent the second end of the frame portion. The details of the cross member 44 will be described in further detail below.
The carry handle support 10 further comprises a handle portion 46 which is mounted on the frame portion at an intermediate location between the first and second mounting portions. The handle portion 46 comprises an elongate rod spanning in the lateral direction between the two side plates in perpendicular relationship therewith such that the rod is suitable for being gripped in a single hand of a user. The rod defining the handle portion is positioned directly above the first mounting portion when the backpack frame 14 is laid generally horizontally along the ground.
Each of the two side plates includes a longitudinal portion 48 spanning in the longitudinal direction from the second mounting portion to the handle portion 46.
Each side plate further comprises a radial portion 50 which extends generally radially outward from the axis of the crankcase adjacent the first mounting portion in an -- orientation which is generally perpendicular to the longitudinal direction towards the handle portion where the longitudinal and radial portions are connected. The radial portion 50 includes an intermediate portion between the first mounting portion and the handle which is offset inwardly towards the second mounting portion relative to the first mounting portion and the handle portion. The handle portion 46 is connected to -- the side plates at the connection between the longitudinal portion and the radial portion to locate the handle above the first end of the crankcase. In this manner, the handle is substantially aligned with a centre of gravity of the pump assembly in the longitudinal direction of the crankcase for balanced lifting of the pump assembly suspended below the handle portion 46.
5 The cross member 44 comprises a plate which extends the full width of the support 10 in the lateral direction between the two side plates. The cross member spans in the longitudinal direction from the second mounting portion at the second end of the frame portion only partway towards the handle portion such that the cross member is positioned above the cylinder head of the motor. A set of access
The space between the two side plates at the second end of the frame -- portion is fixed by a cross member 44 spanning between the two side plates overtop of the cylinder head of the motor adjacent the second end of the frame portion. The details of the cross member 44 will be described in further detail below.
The carry handle support 10 further comprises a handle portion 46 which is mounted on the frame portion at an intermediate location between the first and second mounting portions. The handle portion 46 comprises an elongate rod spanning in the lateral direction between the two side plates in perpendicular relationship therewith such that the rod is suitable for being gripped in a single hand of a user. The rod defining the handle portion is positioned directly above the first mounting portion when the backpack frame 14 is laid generally horizontally along the ground.
Each of the two side plates includes a longitudinal portion 48 spanning in the longitudinal direction from the second mounting portion to the handle portion 46.
Each side plate further comprises a radial portion 50 which extends generally radially outward from the axis of the crankcase adjacent the first mounting portion in an -- orientation which is generally perpendicular to the longitudinal direction towards the handle portion where the longitudinal and radial portions are connected. The radial portion 50 includes an intermediate portion between the first mounting portion and the handle which is offset inwardly towards the second mounting portion relative to the first mounting portion and the handle portion. The handle portion 46 is connected to -- the side plates at the connection between the longitudinal portion and the radial portion to locate the handle above the first end of the crankcase. In this manner, the handle is substantially aligned with a centre of gravity of the pump assembly in the longitudinal direction of the crankcase for balanced lifting of the pump assembly suspended below the handle portion 46.
5 The cross member 44 comprises a plate which extends the full width of the support 10 in the lateral direction between the two side plates. The cross member spans in the longitudinal direction from the second mounting portion at the second end of the frame portion only partway towards the handle portion such that the cross member is positioned above the cylinder head of the motor. A set of access
10 apertures 54 are provided in the cross member in alignment with respective ones of the cylinder head studs to allow access of a tool for re-torquing the studs as may be desired without removing the carry handle support from the pump assembly.
The cross member 44 is formed by two separate plates 56 which are each joined integrally with respective ones of the two side plates. The overall cross member is assembled by forming the side plates 30 separately with respective ones of the plates 56 integrally formed therewith and then folding the plates 56 relative to respective ones of the side plates 30 until the two plates 56 are generally coplanar.
The inner edges are then welded together to form a common plate spanning between the two side plates.
As shown in the figures, the handle portion 46 extends perpendicularly to the second plate portions, directly above the first plate portion, so as to be co-planar with the first plate portion.
In use an existing pump assembly is provided with an additional carry handle by fastening the first and second mounting portions of the support 10 to respective existing fasteners of the crankcase and fan cowl as described above. The
The cross member 44 is formed by two separate plates 56 which are each joined integrally with respective ones of the two side plates. The overall cross member is assembled by forming the side plates 30 separately with respective ones of the plates 56 integrally formed therewith and then folding the plates 56 relative to respective ones of the side plates 30 until the two plates 56 are generally coplanar.
The inner edges are then welded together to form a common plate spanning between the two side plates.
As shown in the figures, the handle portion 46 extends perpendicularly to the second plate portions, directly above the first plate portion, so as to be co-planar with the first plate portion.
In use an existing pump assembly is provided with an additional carry handle by fastening the first and second mounting portions of the support 10 to respective existing fasteners of the crankcase and fan cowl as described above. The
11 configuration of the frame portion provides protection to the spark plug at the top of the motor while maintaining access for re-torquing the cylinder head studs.
The rigid construction of the frame portion provides sufficient support that a suitable supporting structure can be rested on top of the cross members of a plurality of pump assemblies with carry handle supports 10 mounted thereon for stacking additional pump assemblies on the supporting structure which may comprise a pallet for example.
Turning now more particularly to the first embodiment of Figures 1 through 8, the handle portion 46 is adjustable relative to the side plates of the frame portion by supporting opposing ends of the rod forming the handle portion in respective mounting slots 52. Each slot is oriented generally in the radial direction perpendicular to the longitudinal direction and supports a respective end of the rod forming the handle portion therein such that the handle is freely slidable and adjustable along the slot. The handle portion is thus adjustable in height relative to the frame 14 at the bottom of the pump assembly while permitting the distance of the handle portion from the crankcase to be variable. The slidably adjustable handle permits access of a variety of different tools to the spark plug for changing the spark plug as may be desired without removing the carry handle support from the pump assembly. Also in the first embodiment, the cross member 44 is positioned above the cylinder head of the motor to span substantially the full length of the cylinder head in the longitudinal direction. Four access apertures 54 are provided in the cross member in this instance in alignment with each of the four respective cylinder head studs.
Turning now to the second embodiment of Figures 9 through 15, the handle portion 46 is fixed relative to the side plates of the frame portion.
The handle portion is located adjacent a top end of the side plates so as to be substantially at the
The rigid construction of the frame portion provides sufficient support that a suitable supporting structure can be rested on top of the cross members of a plurality of pump assemblies with carry handle supports 10 mounted thereon for stacking additional pump assemblies on the supporting structure which may comprise a pallet for example.
Turning now more particularly to the first embodiment of Figures 1 through 8, the handle portion 46 is adjustable relative to the side plates of the frame portion by supporting opposing ends of the rod forming the handle portion in respective mounting slots 52. Each slot is oriented generally in the radial direction perpendicular to the longitudinal direction and supports a respective end of the rod forming the handle portion therein such that the handle is freely slidable and adjustable along the slot. The handle portion is thus adjustable in height relative to the frame 14 at the bottom of the pump assembly while permitting the distance of the handle portion from the crankcase to be variable. The slidably adjustable handle permits access of a variety of different tools to the spark plug for changing the spark plug as may be desired without removing the carry handle support from the pump assembly. Also in the first embodiment, the cross member 44 is positioned above the cylinder head of the motor to span substantially the full length of the cylinder head in the longitudinal direction. Four access apertures 54 are provided in the cross member in this instance in alignment with each of the four respective cylinder head studs.
Turning now to the second embodiment of Figures 9 through 15, the handle portion 46 is fixed relative to the side plates of the frame portion.
The handle portion is located adjacent a top end of the side plates so as to be substantially at the
12 same height as the cross member 44 to evenly support the weight of a pallet thereon when stacking for example. The cross member 44 in this embodiment only spans over a portion of the cylinder head in the longitudinal direction so that some of the cylinder heads remain fully exposed. In this instance only two access apertures 54 are required in the cross member 44 so that all of the cylinder head studs remain accessible to tools.
Since various modifications can be made in my invention as herein above described, and many apparently widely different embodiments of same made, it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative only and not in a limiting sense.
Since various modifications can be made in my invention as herein above described, and many apparently widely different embodiments of same made, it is intended that all matter contained in the accompanying specification shall be interpreted as illustrative only and not in a limiting sense.
Claims (20)
1. A carry handle support for a pump assembly comprising a crankcase extending in a longitudinal direction between a first end and a second end, a motor coupled to the crankcase, a fan cowl coupled to the second end of the crankcase having a pair of fastener mounts formed at laterally spaced apart positions therein, and a pumping chamber coupled to the first end of crankcase, the carry handle support comprising:
a frame portion extending between opposing first and second ends;
a first mounting portion supported on the first end of the frame portion comprising a first plate portion including at least one first mounting aperture therein which is arranged for alignment with a corresponding fastener mount on the first end of the crankcase for mounting onto the pump assembly adjacent to the first end of the crankcase using a corresponding threaded fastener;
a second mounting portion supported on the second end of the frame portion comprising two second plate portions which are spaced apart and parallel to one another so as to be oriented perpendicularly to the first plate portion, the second plate portions each including a second mounting aperture therein which is oriented perpendicularly to said at least one first mounting aperture such that the fastener apertures are arranged for alignment with the pair of fastener mounts on the fan cowl respectively for mounting onto the pump assembly adjacent the second end of the crankcase using a pair of threaded fasteners; and a handle portion supported on the frame portion between the first and second mounting portions and being arranged to be gripped in a hand of a user.
a frame portion extending between opposing first and second ends;
a first mounting portion supported on the first end of the frame portion comprising a first plate portion including at least one first mounting aperture therein which is arranged for alignment with a corresponding fastener mount on the first end of the crankcase for mounting onto the pump assembly adjacent to the first end of the crankcase using a corresponding threaded fastener;
a second mounting portion supported on the second end of the frame portion comprising two second plate portions which are spaced apart and parallel to one another so as to be oriented perpendicularly to the first plate portion, the second plate portions each including a second mounting aperture therein which is oriented perpendicularly to said at least one first mounting aperture such that the fastener apertures are arranged for alignment with the pair of fastener mounts on the fan cowl respectively for mounting onto the pump assembly adjacent the second end of the crankcase using a pair of threaded fasteners; and a handle portion supported on the frame portion between the first and second mounting portions and being arranged to be gripped in a hand of a user.
2. The carry handle support according to Claim 1 wherein the handle portion extends perpendicularly to the second plate portions.
3. The carry handle support according to Claim 1 wherein the handle portion is directly above the first plate portion.
4. The carry handle support according to Claim 1 wherein the handle portion is co-planar with the first plate portion.
5. The carry handle support according to Claim 1 wherein the first plate portion is joined to the frame portion by threaded fasteners.
6. The carry handle support according to Claim 1 wherein the second plate portions are integrally formed with the frame portion.
7. The carry handle support according to Claim 1 wherein the handle portion is supported on the frame portion so as to be slidable relative to the pump assembly.
8. The carry handle support according to Claim 7 wherein the handle portion is slidable perpendicularly to the longitudinal direction of crankcase so as to vary a distance of the handle portion from the crankcase.
9. The carry handle support according to Claim 1 wherein the handle portion is supported on the frame portion so as to be substantially aligned with a center of gravity of the pump assembly in the longitudinal direction of the crankcase.
10. The carry handle support according to Claim 1 wherein the frame portion comprises two side plates which are parallel and spaced apart from one another, the two second plate portions being integral and coplanar with respective ones of the two side plates of the frame portion.
11. The carry handle support according to Claim 1 wherein the frame portion comprises two side plates which are parallel and spaced apart from one another, the handle portion spanning between the two side plates so as to be perpendicular to the two side plates.
12. The carry handle support according to Claim 11 wherein the two side plates are joined at a fixed space relative to one another at both ends adjacent the first and second mounting portions respectively.
13. The carry handle support according to Claim 11 wherein the first mounting portion comprises a mounting plate joined between the two side plates so as to span perpendicularly to the two side plates.
14. The carry handle support according to Claim 11 wherein there is provided a cross member comprising a plate joined between the two side plates so as to span perpendicularly to the two side plates across the motor of the pump assembly adjacent the second mounting portion.
15. The carry handle support according to Claim 14 wherein the handle portion and the cross member are at the same height.
16. The carry handle support according to Claim 14 wherein there is provided at least one access opening in the cross member in alignment with at least one cylinder head stud of the motor of the pump assembly.
17. The carry handle support according to Claim 1 wherein the frame portion comprises a longitudinal portion extending in the longitudinal direction of the crankcase between the second mounting portion and the handle portion and a radial portion extending perpendicularly to the longitudinal direction from the first mounting portion radially outwardly from the crankcase to the handle portion, wherein the radial portion includes an intermediate portion between the first mounting portion and the handle which is offset inwardly towards the second mounting portion relative to the first mounting portion and the handle portion.
18. The carry handle support according to Claim 1 for a pump assembly comprising a common frame spanning in the longitudinal direction of the crankcase, wherein the handle portion is supported on the frame portion so as to be arranged to be located relative to the crankcase opposite from the common frame.
19. The carry handle support according to Claim 1 for a pump assembly comprising a common frame spanning in the longitudinal direction of the crankcase along a bottom side of the pump assembly, wherein the handle portion is supported on the frame portion so as to be located above the motor of the pump assembly to define an uppermost portion of the pump assembly.
20. The carry handle support according to Claim 1 wherein the frame portion includes a cross member comprising a plate extending between the two second plate portions, the cross member including at least one access opening therein which is adapted for alignment with at least one cylinder head stud of the motor of the pump assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2708827A CA2708827C (en) | 2010-06-25 | 2010-06-25 | Carry handle support for a portable pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2708827A CA2708827C (en) | 2010-06-25 | 2010-06-25 | Carry handle support for a portable pump assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2708827A1 CA2708827A1 (en) | 2011-12-25 |
| CA2708827C true CA2708827C (en) | 2017-02-07 |
Family
ID=45421242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2708827A Active CA2708827C (en) | 2010-06-25 | 2010-06-25 | Carry handle support for a portable pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2708827C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557408A (en) * | 2013-10-31 | 2014-02-05 | 浙江跃进机械有限公司 | Fan bracket |
-
2010
- 2010-06-25 CA CA2708827A patent/CA2708827C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2708827A1 (en) | 2011-12-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20150309 |