US20160271783A1 - Pole-attached power tool systems - Google Patents
Pole-attached power tool systems Download PDFInfo
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- US20160271783A1 US20160271783A1 US15/170,702 US201615170702A US2016271783A1 US 20160271783 A1 US20160271783 A1 US 20160271783A1 US 201615170702 A US201615170702 A US 201615170702A US 2016271783 A1 US2016271783 A1 US 2016271783A1
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- United States
- Prior art keywords
- pole
- power tool
- handle
- electric motor
- gravity
- 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
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Classifications
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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
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/08—Other tools for pruning, branching or delimbing standing trees
- A01G3/085—Motor-driven saws for pruning or branching
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/08—Other tools for pruning, branching or delimbing standing trees
- A01G3/085—Motor-driven saws for pruning or branching
- A01G3/086—Chain saws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
- B25G1/04—Handle constructions telescopic; extensible; sectional
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
- B25G1/10—Handle constructions characterised by material or shape
- B25G1/102—Handle constructions characterised by material or shape the shape being specially adapted to facilitate handling or improve grip
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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
- B27B17/0008—Means for carrying the chain saw, e.g. handles
Definitions
- the present disclosure relates generally to the field of power tools, and more particularly, to pole-attached power tool systems.
- Pole-attached power tools may be used to effectively extend a user's reach and allow a user to work in hard-to-access environments. These tools may be unwieldy or difficult for a user to operate due to the length of the pole, the weight and limited power of the gasoline engine or electric motor used to power the tool, and the environment in which the tool is to be used, among other factors.
- FIG. 1 is a schematic illustration of a pole-attached power tool system, in accordance with various embodiments.
- FIGS. 2-4 are schematic illustrations of various embodiments of the pole-attached power tool system of FIG. 1 .
- FIG. 5 depicts illustrative dimensions and a center of gravity of an embodiment of the pole-attached power tool system of FIG. 1 .
- FIG. 6 is a schematic illustration of an embodiment of the pole-attached power tool system of FIG. 1 .
- FIGS. 7-8 depict illustrative dimensions and centers of gravity of an embodiment of the pole-attached power tool system of FIG. 1 in various configurations.
- FIG. 9 is a cross-sectional illustration of a portion of an embodiment of the pole-attached power tool system of FIG. 1 .
- FIGS. 10-11 are flow diagrams illustrating processes for manufacturing a pole-attached power tool system, in accordance with some embodiments.
- a pole-attached power tool system may include a pole having a first end, a second end, and an interior region; a handle disposed proximate to the first end of the pole; an electric motor disposed proximate to the first end of the pole; a power tool disposed proximate to the second end of the pole; and a drive member disposed within the interior region, the drive member mechanically coupled with the electric motor and the power tool to transfer power generated by the electric motor to the power tool.
- phrase “A and/or B” means (A), (B), or (A and B).
- phrase “A, B, and/or C” means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B and C).
- Coupled may mean that two or more elements are in direct physical or electrical contact. However, “coupled” may also mean that two or more elements are not in direct contact with each other, but yet still cooperate or interact with each other.
- FIG. 1 is a schematic illustration of a pole-attached power tool system 100 , in accordance with various embodiments.
- the system 100 may include a motor/handle arrangement 102 , a pole 110 and a power tool 114 .
- the pole 110 may have a first end 110 a , a second end 110 b , and an interior region 110 c .
- the pole 110 may be hollow and shaped substantially as a cylinder, although other cross-sectional shapes may be used, such as oval, square, rectangular, etc.
- the pole 110 may be formed from any of a number of materials, to achieve a desired weight and strength. Examples of materials that may be used for the pole 110 include aluminum, fiberglass, other metals, or any combination of materials.
- the pole 110 may have a length of at least 2 feet. In preferred embodiments, the pole 110 may have a length of at least 3, 5, 7, 9, 11 or 13 feet. In some embodiments, the pole 110 may be reversibly extendable.
- the pole 110 may telescope.
- the above values for the length of the pole 110 may be applied to any extended or retracted state of the pole 110 .
- the pole 110 need not be formed from a single member, but may include multiple members (e.g., multiple members in a telescoping configuration).
- the motor/handle arrangement 102 may be disposed proximate to the first end 110 a of the pole 110 .
- the motor/handle arrangement 102 may include a handle 104 , an electric motor 106 , a gear box 108 , a battery 122 , and a switch 116 .
- the handle 104 may be configured and positioned to be gripped by a user while the system 100 is in use. Although the handle 104 is described in the singular, the system 100 may include two or more handles in various embodiments.
- the handle 104 may be shaped in any manner suitable for gripping by a user.
- the handle 104 may include a harness or shoulder strap.
- the handle 104 may include multiple regions configured to be gripped by a user.
- the handle 104 may be formed from any of a number of materials, such as plastics, polymers, metals, or combinations of materials. In some embodiments, the handle 104 may be injection molded.
- the handle 104 may be formed in a handle housing (not shown), which may include an interior region in which one or more components may be disposed.
- a handle housing may include one or more regions which may serve as the handle 104 ; these regions may be dimensioned to be gripped by a user, and may include additional material to improve a user's grip (such as a rubber or synthetic material provided with ridges or finger rests).
- the motor/handle arrangement 102 may include an electric motor 106 .
- the electric motor 106 may be a DC motor.
- the electric motor 106 may be an AC motor.
- the electric motor 106 may be disposed in the interior region of the handle housing.
- Electric motors (such as the electric motor 106 ) may have a number of advantages over gas engines (typically used in many power tool applications). For example, gas engines require the user to provide liquid fuel (e.g., gasoline), which may be difficult to store and transport to remote locations. Gas engines are often louder than electric motors, and generate exhaust and other fumes. Gas engines are also typically heavier than electric motors, making it more difficult for a user to carefully control a gas-based tool and causing additional fatigue. However, when compared to electric motors of the same volume, gas engines typically provide more power. Thus, many existing pole-attached tool systems have utilized gas engines instead of electric motors to achieve greater power.
- the electric motor 106 may be disposed proximate to the first end 110 a of the pole 110 .
- This positioning of the electric motor 106 represents a divergence from existing approaches to the design of electric pole-attached tool systems. Because such electric motor configurations typically provide less power than their fuel-based counterparts (as discussed above), existing electric pole-attached tool systems have been designed to maximize the efficiency of power transfer between the electric motor and the power tool. To this end, existing electric pole-attached tool systems have positioned the electric motor close to the power tool to minimize losses due to additional length and complexity of the drivetrain between the electric motor and the power tool. Consequently, existing systems position the electric motor far away from the handle 104 and the user.
- the alternative approach disclosed herein represents a rejection of the traditional model, and a reconsideration and balancing of design factors in a novel way.
- the additional weight of such a motor may not be problematic for a user if the weight is positioned in the pole-attached tool system in a suitable location.
- the electric motor 106 (and/or its accompanying battery) may be larger and heavier than those used in existing electric pole-attached tool systems, and may include a lossier drivetrain, while improving both power tool performance and handleability.
- the center of gravity of the system 100 may be closer to the handle 104 than in existing electric pole-attached tool systems, which may make it easier for the user to carry and control the system 100 than existing systems.
- a more powerful electric motor may be used as the electric motor 106 than was previously achievable, which may allow the system 100 to achieve better power performance than existing electric pole-attached tool systems (and approaching, comparable to, or exceeding the power performance of gas-powered pole-attached tool systems).
- the system 100 may weigh between 10 and 20 pounds. In preferred embodiments, the system 100 may weigh between 10 and 15 pounds. Longer and more complex drivetrains may also be used. Additionally, positioning the electric motor 106 proximate to the first end 110 a of the pole 110 allows the system 100 to achieve a smaller form factor at the end of the system 100 closest to the power tool 114 . This may make it easier for users to negotiate the system 100 in tight spaces (e.g., between tree branches), and for the user to be able to clearly see and position the power tool 114 .
- the motor/handle arrangement 102 may include a battery 122 , which may be electrically coupled to the electric motor 106 .
- the battery 122 may be a rechargeable battery, and may be removably coupled with a charger (not shown) to recharge.
- the battery 122 may be a Lithium ion battery or a NiCad battery.
- the voltage provided by the battery 122 may be any suitable voltage (e.g., 20 volts).
- the amperage provided by the battery 122 may be any suitable amperage (e.g., 4 ampere-hours). In some embodiments, the battery 122 may provide at least 20 ampere-hours of power at 40 volts.
- the system 100 may include an electrical cable (not shown) to couple the electric motor 106 to an energy source, such as an AC wall outlet (instead of or in addition to the battery 122 ).
- the length of the cable may vary depending on the environment in which the system 100 is to be used; in some embodiments, the cable may have a length of 100 feet or more.
- the system 100 may not include a liquid fuel tank and/or an engine that operates on liquid fuel (such as a gas motor).
- the motor/handle arrangement 102 may include a switch 116 .
- the switch 116 may be electrically coupled to the electric motor 106 , and may be disposed proximate to the electric motor 106 .
- the switch 116 may be operable by a user of the system 100 to control actuation of the power tool 114 .
- the switch 116 may include one or more controls operable by a user.
- the switch 116 may include a ready/off switch, a trigger operable to commence actuation of the power tool 114 , and/or one or more dials to adjust performance characteristics of the system 100 .
- the motor/handle arrangement 102 may include a gear box 108 .
- the gear box 108 may include one or more cams, gears, or shafts mechanically coupled to the electric motor 106 and to the power tool 114 to convert the motor power into actuation of the power tool 114 .
- the motor/handle arrangement 102 may not include the gear box 108 ; instead, the gear box 108 may be disposed in a different location (e.g., proximate to the second end 110 b of the pole 110 ) or not included in the system 100 .
- a gear box 108 may be replaced by a direct drive flexible cable, or other such arrangement.
- the pole 110 may have an interior region 110 c .
- a drive member 112 may be disposed within the interior region 110 c .
- the drive member 112 may be mechanically coupled with the electric motor 106 and the power tool 114 to transfer power generated by the electric motor 106 to the power tool 114 to actuate the power tool 114 .
- the drive member 112 may include a chain drive.
- the drive member 112 may include a belt drive.
- the drive member may have a length greater than 20 inches.
- the drive member may have a length greater than 40 inches.
- the drive member 112 may include any suitable drive technology employed in existing gas or electric pole-attached tool systems. As the length and complexity of drive member 112 increases, a battery 122 with greater power may be desirable.
- the power tool 114 may be disposed proximate to the second end 110 b of the pole 110 .
- the power tool 114 may include any suitable power tool.
- the power tool 114 may include a saw.
- the saw may be a chain saw, which may include a bar and a chain with teeth (e.g., a 1 ⁇ 4 inch or 3 ⁇ 8 inch chain).
- the cutting dimensions of the saw may be 6 inches, 8, inches, 10 inches, 12 inches, or 14 inches, for example.
- the power tool 114 may be a hedge trimmer, shaker, clipper, a rotating brush (e.g., to clean or remove moss or other debris), a drilling device, a pruner, a vibrating scraper, or other such tool.
- FIGS. 2-4 are schematic illustrations of various embodiments of the pole-attached power tool system 100 of FIG. 1 .
- the pole-attached power tool systems depicted in FIGS. 2-4 may include any of the components discussed above with reference to the system 100 ( FIG. 1 ). For ease of illustration, only a small number of such components are shown in FIGS. 2-4 .
- the pole-attached power tool system 200 may include the handle 104 , the electric motor 106 , and the gear box 108 , each disposed proximate to the first end 110 a of the pole 110 .
- the power tool 114 may be disposed proximate to the second end 110 b of the pole 110 .
- the electric motor 106 may be disposed between the handle 104 and the gear box 108 .
- the gear box 108 may be disposed closest to the power tool 114 of any of the handle 104 , the gear box 108 , and the electric motor 106 . In some embodiments, the gear box 108 may not be included.
- the pole-attached power tool system 300 may include the handle 104 , the electric motor 106 , and the gear box 108 , each disposed proximate to the first end 110 a of the pole 110 .
- the power tool 114 may be disposed proximate to the second end 110 b of the pole 110 .
- the electric motor 106 and the gear box 108 may be disposed in an interior region 132 a of a handle housing 132 . In some embodiments, the gear box 108 may not be included.
- the pole-attached power tool system 400 may include the handle 104 , the electric motor 106 , and the gear box 108 , each disposed proximate to the first end 110 a of the pole 110 .
- the power tool 114 may be disposed proximate to the second end 110 b of the pole 110 .
- the electric motor 106 may be disposed in the interior region 132 a of the handle housing 132 .
- the gear box 108 may be disposed between the handle 104 and the power tool 114 . In some embodiments, the gear box 108 may not be included.
- FIG. 5 depicts illustrative dimensions and center of gravity of an embodiment of the pole-attached power tool system 100 ( FIG. 1 ).
- the system 100 may include the handle 104 , the electric motor 106 , and the gear box 108 , each disposed proximate to the first end 110 a of the pole 110 .
- the power tool 114 may be disposed proximate to the second end 110 b of the pole 110 .
- the center of gravity of the system 100 which generally represents the location in a particular direction of the average position of the weight or mass of the system 100 , is represented by the arrow 506 .
- the center of gravity of the system 100 in the direction of the longitudinal axis 130 , cg may be calculated in accordance with:
- the center of gravity 506 may be located between the electric motor 106 and the power tool 114 . In some embodiments, the center of gravity 506 may be located between the gear box 108 and the power tool 114 . In some embodiments, both the electric motor 106 and the gear box 108 may be located on one side of the center of gravity 506 (along the longitudinal axis 130 ) and the power tool 114 may be located on the other side of the center of gravity 506 .
- the system 100 may have a first end 100 a proximate to the first end 110 a of the pole 110 , and a second end 100 b proximate to the second end 110 b of the pole 110 .
- the system 100 may have a longitudinal length 502 measured between the first end 100 a and the second end 100 b parallel to the longitudinal axis 130 of the pole 110 .
- the center of gravity 506 may be located a distance 508 from the first end 100 a of the system 100 , and a distance 510 from the second end 100 b of the system 100 .
- the center of gravity 506 may be located less than approximately 1 ⁇ 2 of the longitudinal length 502 from the first end 100 a ; in other words, the ratio between the distance 508 and the longitudinal length 502 may be less than approximately 1 ⁇ 2. In preferred embodiments, the center of gravity may be located less than approximately 2 ⁇ 5, 3/10, 7/20, or 13/40 of the longitudinal length 502 from the first end 100 a.
- the system 100 may have a dimension 504 , measured between an end 1146 a of the power tool 114 closest to the first end 110 a of the pole 110 and an end 106 a of the electric motor 106 closest to the second end 110 b of the pole 110 .
- the dimension 504 may be greater than approximately 12 inches. In preferred embodiments, the dimension 504 may be greater than approximately 20, 30, 40, 50 or 60 inches.
- the dimension 504 may change as the pole 110 is extended and retracted. In such embodiments, the above values for the dimension 504 may be applied to any extended or retracted state of the pole 110 (e.g., the configurations depicted in FIGS. 7-8 and discussed below).
- FIG. 6 is a schematic illustration of an embodiment of the pole-attached power tool system 100 of FIG. 1 .
- the pole-attached power tool system depicted in FIG. 6 may include any of the components discussed above with reference to the system 100 ( FIG. 1 ). For ease of illustration, only a small number of such components are shown in FIG. 6 .
- the pole-attached power tool system 600 may include a first handle 104 a , a second handle 104 b , the electric motor 106 , and the battery 122 , each disposed proximate to the first end 110 a of the pole 110 .
- the first handle 104 a may be disposed between the battery 122 and the electric motor 106 .
- the second handle 104 b may be disposed between the first handle 104 a and the second end 110 b of the pole 110 .
- the electric motor 106 may be disposed between the first handle 104 a and the second handle 104 b .
- the power tool 114 may be disposed proximate to the second end 110 b of the pole 110 .
- the drive member 112 may extend between the electric motor 106 and the power tool 114 .
- the length of the pole 110 may be reversibly extendable.
- the pole may be adjustable between multiple configurations corresponding to different lengths of the pole. This adjustment may be continuous, discrete, or a combination of both.
- the length of the drive member between the electric motor 106 and the power tool 114 in at least one configuration may be greater than 20 inches. In some embodiments, the length of the drive member between the electric motor 106 and the power tool 114 in at least one configuration may be greater than 40 inches.
- FIGS. 7-8 depict illustrative dimensions and centers of gravity of an embodiment of the pole-attached power tool system 100 (e.g., the embodiment discussed above with reference to FIG. 6 ) in various configurations.
- FIG. 7 illustrates a configuration in which the pole 110 is extended to a longer length
- FIG. 8 illustrates a configuration in which the pole 110 is retracted to a shorter length.
- the pole-attached power tool system 100 may be adjustable between the configurations shown in FIGS. 7 and 8 (and between any of a number of other configurations in various embodiments).
- the system 100 may include the handles 104 a and 104 b , the electric motor 106 , and the battery 122 , each disposed proximate to the first end 110 a of the pole 110 .
- the power tool 114 may be disposed proximate to the second end 110 b of the pole 110 .
- the center of gravity of the system 100 is represented by the arrow 706 and may be calculated in accordance with Eq. 1, above. As shown, in some embodiments, the center of gravity 706 may be located between a mid-point of the second handle 104 b (the mid-point indicated by the dotted line 124 ) and the second end 110 a of the pole 110 . In some embodiments, the center of gravity 706 may be located within a distance 708 of six inches of either side of the mid-point of the second handle 104 b (as measured in the direction of the longitudinal axis 130 of the pole 110 ). In some embodiments, the center of gravity 706 may be located within a distance 708 of three inches of either side of the mid-point of the second handle 104 b . In some embodiments, the center of gravity 706 may be located within a distance 708 of two inches of either side of the mid-point of the second handle 104 b.
- the system 100 may include the handles 104 a and 104 b , the electric motor 106 , and the battery 122 , each disposed proximate to the first end 110 a of the pole 110 .
- the power tool 114 may be disposed proximate to the second end 110 b of the pole 110 .
- the center of gravity of the system 100 is represented by the arrow 806 and may be calculated in accordance with Eq. 1, above. As shown, in some embodiments, the center of gravity 806 may be located between the first handle 104 a and a mid-point of the second handle 104 b (the mid-point indicated by the dotted line 124 ).
- the center of gravity 806 may be located within a distance 808 of six inches of either side of the mid-point of the second handle 104 b (as measured in the direction of the longitudinal axis 130 of the pole 110 ). In some embodiments, the center of gravity 806 may be located within a distance 808 of three inches of either side of the mid-point of the second handle 104 b . In some embodiments, the center of gravity 806 may be located within a distance 808 of two inches of either side of the mid-point of the second handle 104 b.
- the user may adjust the center of gravity of the system 100 to accommodate his or her handling preferences.
- the center of gravity of the system 100 is located between the handles 104 a and 104 b (e.g., as shown in FIG. 8 )
- the user will generally apply an “upward” force on each of the handles 104 a and 104 b to balance the system 100 .
- the center of gravity of the system 100 is located between the handle 104 b and the second end 110 b of the pole 110 (e.g., as shown in FIG.
- the user will generally apply an “upward” force on the handle 104 b and a “downward” force on the handle 104 a to balance the system 100 .
- Users may wish to push “upward” or “downward” on the handle 104 a (e.g., in different applications), and thus may wish to adjust the center of gravity of the system 100 .
- one or more of the components of the system 100 instead of or in addition to the pole 110 , may be adjustable to vary the center of gravity of the system 100 to suit a user's preferences and the application at hand.
- the battery 122 may be mounted in a housing that is adjustably coupled to a handle housing (not shown) and can be moved along the longitudinal axis 130 (e.g., using a threaded track, not shown) to adjust the center of gravity of the system 100 .
- FIG. 9 is a cross-sectional illustration of a portion 900 of an embodiment of the pole-attached power tool system 100 ( FIG. 1 ).
- the portion 900 illustrates an embodiment of the relative positions of a first handle 104 a , a second handle 104 b , a handle housing 132 , the electric motor 106 , the gear box 108 , and the battery 122 .
- FIG. 6 also illustrates the switch 116 , which may be operable by a user to control actuation of a power tool (not shown) disposed at the end of the pole 110 .
- Electrical connectors 618 e.g., one or more cables
- a drive member 112 may be coupled between the electric motor 106 (e.g., via the gear box 108 ) and the power tool (not shown).
- FIG. 10 is a flow diagram illustrating a process 1000 for manufacturing a pole-attached power tool system (e.g., the system 100 of FIG. 1 ), in accordance with some embodiments. It may be recognized that, while the operations of the process 1000 (and all other processes disclosed herein) may be arranged in a particular order and illustrated once each, in various embodiments, one or more of the operations may be repeated, omitted or performed out of order. Any of the operations of the process 1000 may be performed in accordance with any of the embodiments of the system 100 described herein.
- the process 1000 may begin at the operation 1002 , in which a pole may be provided (e.g., the pole 110 of FIG. 1 ).
- the pole may have a first end, a second end, and an interior region.
- a handle (e.g., the handle 104 of FIG. 1 ) may be provided proximate to the first end of the pole.
- an electric motor (e.g., the electric motor 106 of FIG. 1 ) may be provided proximate to the first end of the pole.
- a power tool (e.g., the power tool 114 of FIG. 1 ) may be provided proximate to the second end of the pole.
- a drive member (e.g., the drive member 112 of FIG. 1 ) may be provided within the interior region.
- the drive member provided at the operation 1010 may be mechanically coupled with the electric motor (provided at the operation 1006 ) and the power tool (provided at the operation 1008 ) to transfer power generated by the electric motor to the power tool.
- FIG. 11 is a flow diagram illustrating a process 1100 for manufacturing a pole-attached power tool system (e.g., the system 100 of FIG. 1 ), in accordance with some embodiments. Any of the operations of the process 1100 may be performed in accordance with any of the embodiments of the system 100 described herein.
- a pole-attached power tool system e.g., the system 100 of FIG. 1
- the process 1000 may begin at the operation 1102 , in which a pole may be provided (e.g., the pole 110 of FIG. 6 ).
- the pole may have a first end, a second end, and an interior region.
- a first handle e.g., the handle 104 a of FIG. 6
- a second handle e.g., the handle 104 b of FIG. 6
- the second handle may be provided between the first handle and the second end of the pole.
- an electric motor (e.g., the electric motor 106 of FIG. 6 ) may be provided between the first and second handles.
- a power tool (e.g., the power tool 114 of FIG. 6 ) may be provided proximate to the second end of the pole.
- a drive member (e.g., the drive member 112 of FIG. 6 ) may be provided within the interior region.
- the drive member provided at the operation 1110 may be mechanically coupled with the electric motor (provided at the operation 1106 ) and the power tool (provided at the operation 1108 ) to transfer power generated by the electric motor to the power tool.
Abstract
Description
- The present application is a continuation of and claims priority to U.S. patent application Ser. No. 14/071,537, which was filed Nov. 04, 2013, titled “POLE-ATTACHED POWER TOOL SYSTEMS,” and which is a continuation of and claims priority to U.S. patent application Ser. No. 14/020,721, filed on Sep. 06, 2013, titled “POLE-ATTACHED POWER TOOL SYSTEMS.” The entire disclosures are incorporated herein by reference.
- The present disclosure relates generally to the field of power tools, and more particularly, to pole-attached power tool systems.
- Pole-attached power tools may be used to effectively extend a user's reach and allow a user to work in hard-to-access environments. These tools may be unwieldy or difficult for a user to operate due to the length of the pole, the weight and limited power of the gasoline engine or electric motor used to power the tool, and the environment in which the tool is to be used, among other factors.
- Embodiments will be readily understood by the following detailed description in conjunction with the accompanying drawings. To facilitate this description, like reference numerals designate like structural elements. Embodiments are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings.
-
FIG. 1 is a schematic illustration of a pole-attached power tool system, in accordance with various embodiments. -
FIGS. 2-4 are schematic illustrations of various embodiments of the pole-attached power tool system ofFIG. 1 . -
FIG. 5 depicts illustrative dimensions and a center of gravity of an embodiment of the pole-attached power tool system ofFIG. 1 . -
FIG. 6 is a schematic illustration of an embodiment of the pole-attached power tool system ofFIG. 1 . -
FIGS. 7-8 depict illustrative dimensions and centers of gravity of an embodiment of the pole-attached power tool system ofFIG. 1 in various configurations. -
FIG. 9 is a cross-sectional illustration of a portion of an embodiment of the pole-attached power tool system ofFIG. 1 . -
FIGS. 10-11 are flow diagrams illustrating processes for manufacturing a pole-attached power tool system, in accordance with some embodiments. - Embodiments of a pole-attached power tool system, and related methods, are disclosed herein. In some embodiments, a pole-attached power tool system may include a pole having a first end, a second end, and an interior region; a handle disposed proximate to the first end of the pole; an electric motor disposed proximate to the first end of the pole; a power tool disposed proximate to the second end of the pole; and a drive member disposed within the interior region, the drive member mechanically coupled with the electric motor and the power tool to transfer power generated by the electric motor to the power tool.
- In the following detailed description, reference is made to the accompanying drawings which form a part hereof wherein like numerals designate like parts throughout, and in which are shown by way of illustration embodiments that may be practiced. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present disclosure. Therefore, the following detailed description is not to be taken in a limiting sense, and the scope of embodiments is defined by the appended claims and their equivalents.
- Various operations may be described as multiple discrete actions or operations in turn, in a manner that is most helpful in understanding the disclosed embodiments. However, the order of description should not be construed as to imply that these operations are necessarily order dependent. In particular, these operations may not be performed in the order of presentation. Operations described may be performed in a different order than the described embodiment. Various additional operations may be performed and/or described operations may be omitted in additional embodiments.
- For the purposes of the present disclosure, the phrase “A and/or B” means (A), (B), or (A and B). For the purposes of the present disclosure, the phrase “A, B, and/or C” means (A), (B), (C), (A and B), (A and C), (B and C), or (A, B and C).
- The description uses the phrases “in an embodiment,” or “in embodiments,” which may each refer to one or more of the same or different embodiments. Furthermore, the terms “comprising,” “including,” “having,” and the like, as used with respect to embodiments of the present disclosure, are synonymous.
- The description may use perspective-based descriptions such as up/down, back/front, and top/bottom. Such descriptions are merely used to facilitate the discussion and are not intended to restrict the application of disclosed embodiments.
- The terms “coupled” and “connected,” along with their derivatives, may be used. It should be understood that these terms are not intended as synonyms for each other. Rather, in particular embodiments, “connected” may be used to indicate that two or more elements are in direct physical or electrical contact with each other. “Coupled” may mean that two or more elements are in direct physical or electrical contact. However, “coupled” may also mean that two or more elements are not in direct contact with each other, but yet still cooperate or interact with each other.
- With respect to the use of any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singular/plural permutations may be expressly set forth herein for sake of clarity.
-
FIG. 1 is a schematic illustration of a pole-attachedpower tool system 100, in accordance with various embodiments. Thesystem 100 may include a motor/handle arrangement 102, apole 110 and apower tool 114. - The
pole 110 may have afirst end 110 a, asecond end 110 b, and aninterior region 110 c. In some embodiments, thepole 110 may be hollow and shaped substantially as a cylinder, although other cross-sectional shapes may be used, such as oval, square, rectangular, etc. Thepole 110 may be formed from any of a number of materials, to achieve a desired weight and strength. Examples of materials that may be used for thepole 110 include aluminum, fiberglass, other metals, or any combination of materials. In some embodiments, thepole 110 may have a length of at least 2 feet. In preferred embodiments, thepole 110 may have a length of at least 3, 5, 7, 9, 11 or 13 feet. In some embodiments, thepole 110 may be reversibly extendable. For example, thepole 110 may telescope. In embodiments in which thepole 110 is reversibly extendable, the above values for the length of thepole 110 may be applied to any extended or retracted state of thepole 110. Thepole 110 need not be formed from a single member, but may include multiple members (e.g., multiple members in a telescoping configuration). - The motor/
handle arrangement 102 may be disposed proximate to thefirst end 110 a of thepole 110. The motor/handle arrangement 102 may include ahandle 104, anelectric motor 106, agear box 108, abattery 122, and aswitch 116. - The
handle 104 may be configured and positioned to be gripped by a user while thesystem 100 is in use. Although thehandle 104 is described in the singular, thesystem 100 may include two or more handles in various embodiments. Thehandle 104 may be shaped in any manner suitable for gripping by a user. In some embodiments, thehandle 104 may include a harness or shoulder strap. In some embodiments, thehandle 104 may include multiple regions configured to be gripped by a user. Thehandle 104 may be formed from any of a number of materials, such as plastics, polymers, metals, or combinations of materials. In some embodiments, thehandle 104 may be injection molded. In some embodiments, thehandle 104 may be formed in a handle housing (not shown), which may include an interior region in which one or more components may be disposed. A handle housing may include one or more regions which may serve as thehandle 104; these regions may be dimensioned to be gripped by a user, and may include additional material to improve a user's grip (such as a rubber or synthetic material provided with ridges or finger rests). - The motor/
handle arrangement 102 may include anelectric motor 106. In some embodiments, theelectric motor 106 may be a DC motor. In some embodiments, theelectric motor 106 may be an AC motor. In some embodiments, theelectric motor 106 may be disposed in the interior region of the handle housing. Electric motors (such as the electric motor 106) may have a number of advantages over gas engines (typically used in many power tool applications). For example, gas engines require the user to provide liquid fuel (e.g., gasoline), which may be difficult to store and transport to remote locations. Gas engines are often louder than electric motors, and generate exhaust and other fumes. Gas engines are also typically heavier than electric motors, making it more difficult for a user to carefully control a gas-based tool and causing additional fatigue. However, when compared to electric motors of the same volume, gas engines typically provide more power. Thus, many existing pole-attached tool systems have utilized gas engines instead of electric motors to achieve greater power. - In the
system 100, theelectric motor 106 may be disposed proximate to thefirst end 110 a of thepole 110. This positioning of theelectric motor 106 represents a divergence from existing approaches to the design of electric pole-attached tool systems. Because such electric motor configurations typically provide less power than their fuel-based counterparts (as discussed above), existing electric pole-attached tool systems have been designed to maximize the efficiency of power transfer between the electric motor and the power tool. To this end, existing electric pole-attached tool systems have positioned the electric motor close to the power tool to minimize losses due to additional length and complexity of the drivetrain between the electric motor and the power tool. Consequently, existing systems position the electric motor far away from thehandle 104 and the user. Moreover, because the electric motor is typically positioned far away from the user of an electric pole-attached tool system, designers have traditionally attempted to minimize the weight of the electric motor to reduce the torque experienced by the user and make the system easier to control. The result of this traditional approach has been electric pole-attached tool systems with relatively small electric motors positioned close to the power tool at the “far” end of the pole. This traditional approach has been reinforced by the use of electric string trimmer platforms (in which the electric motor is located close to the trimming string) as the basis for the development of pole-attached power tools. - The alternative approach disclosed herein represents a rejection of the traditional model, and a reconsideration and balancing of design factors in a novel way. For example, although more powerful electric motors typically weigh more than less powerful motors (and in cordless variants, require heavier and more powerful batteries), the additional weight of such a motor may not be problematic for a user if the weight is positioned in the pole-attached tool system in a suitable location. Indeed, not only may additional weight not be problematic, it may advantageously improve a user's ability to control the system if the weight contributes to the balance and stability of the system. Moreover, it may be less important to maximize drivetrain efficiency when a more powerful electric motor is used because drivetrain losses may have a relatively smaller impact on overall performance.
- Thus, in various embodiments of the electric pole-attached
tool system 100, the electric motor 106 (and/or its accompanying battery) may be larger and heavier than those used in existing electric pole-attached tool systems, and may include a lossier drivetrain, while improving both power tool performance and handleability. In particular, as discussed below with reference toFIG. 5 , the center of gravity of thesystem 100 may be closer to thehandle 104 than in existing electric pole-attached tool systems, which may make it easier for the user to carry and control thesystem 100 than existing systems. In some embodiments, a more powerful electric motor may be used as theelectric motor 106 than was previously achievable, which may allow thesystem 100 to achieve better power performance than existing electric pole-attached tool systems (and approaching, comparable to, or exceeding the power performance of gas-powered pole-attached tool systems). In some embodiments, thesystem 100 may weigh between 10 and 20 pounds. In preferred embodiments, thesystem 100 may weigh between 10 and 15 pounds. Longer and more complex drivetrains may also be used. Additionally, positioning theelectric motor 106 proximate to thefirst end 110 a of thepole 110 allows thesystem 100 to achieve a smaller form factor at the end of thesystem 100 closest to thepower tool 114. This may make it easier for users to negotiate thesystem 100 in tight spaces (e.g., between tree branches), and for the user to be able to clearly see and position thepower tool 114. - The motor/
handle arrangement 102 may include abattery 122, which may be electrically coupled to theelectric motor 106. Thebattery 122 may be a rechargeable battery, and may be removably coupled with a charger (not shown) to recharge. In some embodiments, thebattery 122 may be a Lithium ion battery or a NiCad battery. The voltage provided by thebattery 122 may be any suitable voltage (e.g., 20 volts). The amperage provided by thebattery 122 may be any suitable amperage (e.g., 4 ampere-hours). In some embodiments, thebattery 122 may provide at least 20 ampere-hours of power at 40 volts. - In some embodiments, the
system 100 may include an electrical cable (not shown) to couple theelectric motor 106 to an energy source, such as an AC wall outlet (instead of or in addition to the battery 122). The length of the cable may vary depending on the environment in which thesystem 100 is to be used; in some embodiments, the cable may have a length of 100 feet or more. - In some embodiments, because the
power tool 114 may be driven by theelectric motor 106, thesystem 100 may not include a liquid fuel tank and/or an engine that operates on liquid fuel (such as a gas motor). - The motor/
handle arrangement 102 may include aswitch 116. Theswitch 116 may be electrically coupled to theelectric motor 106, and may be disposed proximate to theelectric motor 106. Theswitch 116 may be operable by a user of thesystem 100 to control actuation of thepower tool 114. In some embodiments, theswitch 116 may include one or more controls operable by a user. For example, theswitch 116 may include a ready/off switch, a trigger operable to commence actuation of thepower tool 114, and/or one or more dials to adjust performance characteristics of thesystem 100. - The motor/
handle arrangement 102 may include agear box 108. Thegear box 108 may include one or more cams, gears, or shafts mechanically coupled to theelectric motor 106 and to thepower tool 114 to convert the motor power into actuation of thepower tool 114. In some embodiments, the motor/handle arrangement 102 may not include thegear box 108; instead, thegear box 108 may be disposed in a different location (e.g., proximate to thesecond end 110 b of the pole 110) or not included in thesystem 100. In alternative embodiments, agear box 108 may be replaced by a direct drive flexible cable, or other such arrangement. - As noted above, the
pole 110 may have aninterior region 110 c. Adrive member 112 may be disposed within theinterior region 110 c. Thedrive member 112 may be mechanically coupled with theelectric motor 106 and thepower tool 114 to transfer power generated by theelectric motor 106 to thepower tool 114 to actuate thepower tool 114. In some embodiments, thedrive member 112 may include a chain drive. In some embodiments, thedrive member 112 may include a belt drive. In some embodiments, the drive member may have a length greater than 20 inches. In some embodiments, the drive member may have a length greater than 40 inches. In some embodiments, thedrive member 112 may include any suitable drive technology employed in existing gas or electric pole-attached tool systems. As the length and complexity ofdrive member 112 increases, abattery 122 with greater power may be desirable. - The
power tool 114 may be disposed proximate to thesecond end 110 b of thepole 110. Thepower tool 114 may include any suitable power tool. In some embodiments, thepower tool 114 may include a saw. The saw may be a chain saw, which may include a bar and a chain with teeth (e.g., a ¼ inch or ⅜ inch chain). The cutting dimensions of the saw may be 6 inches, 8, inches, 10 inches, 12 inches, or 14 inches, for example. In other examples, thepower tool 114 may be a hedge trimmer, shaker, clipper, a rotating brush (e.g., to clean or remove moss or other debris), a drilling device, a pruner, a vibrating scraper, or other such tool. -
FIGS. 2-4 are schematic illustrations of various embodiments of the pole-attachedpower tool system 100 ofFIG. 1 . The pole-attached power tool systems depicted inFIGS. 2-4 may include any of the components discussed above with reference to the system 100 (FIG. 1 ). For ease of illustration, only a small number of such components are shown inFIGS. 2-4 . - In
FIG. 2 , the pole-attachedpower tool system 200 may include thehandle 104, theelectric motor 106, and thegear box 108, each disposed proximate to thefirst end 110 a of thepole 110. Thepower tool 114 may be disposed proximate to thesecond end 110 b of thepole 110. As shown, theelectric motor 106 may be disposed between thehandle 104 and thegear box 108. Thegear box 108 may be disposed closest to thepower tool 114 of any of thehandle 104, thegear box 108, and theelectric motor 106. In some embodiments, thegear box 108 may not be included. - In
FIG. 3 , the pole-attachedpower tool system 300 may include thehandle 104, theelectric motor 106, and thegear box 108, each disposed proximate to thefirst end 110 a of thepole 110. Thepower tool 114 may be disposed proximate to thesecond end 110 b of thepole 110. As shown, theelectric motor 106 and thegear box 108 may be disposed in an interior region 132 a of ahandle housing 132. In some embodiments, thegear box 108 may not be included. - In
FIG. 4 , the pole-attachedpower tool system 400 may include thehandle 104, theelectric motor 106, and thegear box 108, each disposed proximate to thefirst end 110 a of thepole 110. Thepower tool 114 may be disposed proximate to thesecond end 110 b of thepole 110. As shown, theelectric motor 106 may be disposed in the interior region 132 a of thehandle housing 132. Thegear box 108 may be disposed between thehandle 104 and thepower tool 114. In some embodiments, thegear box 108 may not be included. -
FIG. 5 depicts illustrative dimensions and center of gravity of an embodiment of the pole-attached power tool system 100 (FIG. 1 ). InFIG. 5 , thesystem 100 may include thehandle 104, theelectric motor 106, and thegear box 108, each disposed proximate to thefirst end 110 a of thepole 110. Thepower tool 114 may be disposed proximate to thesecond end 110 b of thepole 110. - The center of gravity of the
system 100, which generally represents the location in a particular direction of the average position of the weight or mass of thesystem 100, is represented by thearrow 506. In general, the center of gravity of thesystem 100 in the direction of thelongitudinal axis 130, cg, may be calculated in accordance with: -
- where p(x) represents the density of the
system 100 as a function of the position x along thelongitudinal axis 130. As shown, in some embodiments, the center ofgravity 506 may be located between theelectric motor 106 and thepower tool 114. In some embodiments, the center ofgravity 506 may be located between thegear box 108 and thepower tool 114. In some embodiments, both theelectric motor 106 and thegear box 108 may be located on one side of the center of gravity 506 (along the longitudinal axis 130) and thepower tool 114 may be located on the other side of the center ofgravity 506. - The
system 100 may have afirst end 100 a proximate to thefirst end 110 a of thepole 110, and a second end 100 b proximate to thesecond end 110 b of thepole 110. Thesystem 100 may have alongitudinal length 502 measured between thefirst end 100 a and the second end 100 b parallel to thelongitudinal axis 130 of thepole 110. The center ofgravity 506 may be located adistance 508 from thefirst end 100 a of thesystem 100, and adistance 510 from the second end 100 b of thesystem 100. - In some embodiments, the center of
gravity 506 may be located less than approximately ½ of thelongitudinal length 502 from thefirst end 100 a; in other words, the ratio between thedistance 508 and thelongitudinal length 502 may be less than approximately ½. In preferred embodiments, the center of gravity may be located less than approximately ⅖, 3/10, 7/20, or 13/40 of thelongitudinal length 502 from thefirst end 100 a. - The
system 100 may have adimension 504, measured between an end 1146 a of thepower tool 114 closest to thefirst end 110 a of thepole 110 and an end 106 a of theelectric motor 106 closest to thesecond end 110 b of thepole 110. In some embodiments, thedimension 504 may be greater than approximately 12 inches. In preferred embodiments, thedimension 504 may be greater than approximately 20, 30, 40, 50 or 60 inches. In embodiments in which thepole 110 is reversibly extendable, thedimension 504 may change as thepole 110 is extended and retracted. In such embodiments, the above values for thedimension 504 may be applied to any extended or retracted state of the pole 110 (e.g., the configurations depicted inFIGS. 7-8 and discussed below). -
FIG. 6 is a schematic illustration of an embodiment of the pole-attachedpower tool system 100 ofFIG. 1 . The pole-attached power tool system depicted inFIG. 6 may include any of the components discussed above with reference to the system 100 (FIG. 1 ). For ease of illustration, only a small number of such components are shown inFIG. 6 . - In
FIG. 6 , the pole-attachedpower tool system 600 may include afirst handle 104 a, asecond handle 104 b, theelectric motor 106, and thebattery 122, each disposed proximate to thefirst end 110 a of thepole 110. Thefirst handle 104 a may be disposed between thebattery 122 and theelectric motor 106. Thesecond handle 104 b may be disposed between thefirst handle 104 a and thesecond end 110 b of thepole 110. Theelectric motor 106 may be disposed between thefirst handle 104 a and thesecond handle 104 b. Thepower tool 114 may be disposed proximate to thesecond end 110 b of thepole 110. Thedrive member 112 may extend between theelectric motor 106 and thepower tool 114. - As discussed above, the length of the
pole 110 may be reversibly extendable. In particular, the pole may be adjustable between multiple configurations corresponding to different lengths of the pole. This adjustment may be continuous, discrete, or a combination of both. In some embodiments, the length of the drive member between theelectric motor 106 and thepower tool 114 in at least one configuration may be greater than 20 inches. In some embodiments, the length of the drive member between theelectric motor 106 and thepower tool 114 in at least one configuration may be greater than 40 inches. -
FIGS. 7-8 depict illustrative dimensions and centers of gravity of an embodiment of the pole-attached power tool system 100 (e.g., the embodiment discussed above with reference toFIG. 6 ) in various configurations. In particular,FIG. 7 illustrates a configuration in which thepole 110 is extended to a longer length, andFIG. 8 illustrates a configuration in which thepole 110 is retracted to a shorter length. The pole-attachedpower tool system 100 may be adjustable between the configurations shown inFIGS. 7 and 8 (and between any of a number of other configurations in various embodiments). - In
FIG. 7 , thesystem 100 may include thehandles electric motor 106, and thebattery 122, each disposed proximate to thefirst end 110 a of thepole 110. Thepower tool 114 may be disposed proximate to thesecond end 110 b of thepole 110. - The center of gravity of the
system 100 is represented by thearrow 706 and may be calculated in accordance with Eq. 1, above. As shown, in some embodiments, the center ofgravity 706 may be located between a mid-point of thesecond handle 104 b (the mid-point indicated by the dotted line 124) and thesecond end 110 a of thepole 110. In some embodiments, the center ofgravity 706 may be located within adistance 708 of six inches of either side of the mid-point of thesecond handle 104 b (as measured in the direction of thelongitudinal axis 130 of the pole 110). In some embodiments, the center ofgravity 706 may be located within adistance 708 of three inches of either side of the mid-point of thesecond handle 104 b. In some embodiments, the center ofgravity 706 may be located within adistance 708 of two inches of either side of the mid-point of thesecond handle 104 b. - In
FIG. 8 , thesystem 100 may include thehandles electric motor 106, and thebattery 122, each disposed proximate to thefirst end 110 a of thepole 110. Thepower tool 114 may be disposed proximate to thesecond end 110 b of thepole 110. The center of gravity of thesystem 100 is represented by thearrow 806 and may be calculated in accordance with Eq. 1, above. As shown, in some embodiments, the center ofgravity 806 may be located between thefirst handle 104 a and a mid-point of thesecond handle 104 b (the mid-point indicated by the dotted line 124). In some embodiments, the center ofgravity 806 may be located within adistance 808 of six inches of either side of the mid-point of thesecond handle 104 b (as measured in the direction of thelongitudinal axis 130 of the pole 110). In some embodiments, the center ofgravity 806 may be located within adistance 808 of three inches of either side of the mid-point of thesecond handle 104 b. In some embodiments, the center ofgravity 806 may be located within adistance 808 of two inches of either side of the mid-point of thesecond handle 104 b. - Because the
system 100 may adjusted between the configurations illustrated inFIGS. 7 and 8 , the user may adjust the center of gravity of thesystem 100 to accommodate his or her handling preferences. In particular, when the center of gravity of thesystem 100 is located between thehandles FIG. 8 ), the user will generally apply an “upward” force on each of thehandles system 100. When the center of gravity of thesystem 100 is located between thehandle 104 b and thesecond end 110 b of the pole 110 (e.g., as shown inFIG. 7 ), the user will generally apply an “upward” force on thehandle 104 b and a “downward” force on thehandle 104 a to balance thesystem 100. Users may wish to push “upward” or “downward” on thehandle 104 a (e.g., in different applications), and thus may wish to adjust the center of gravity of thesystem 100. In some embodiments, one or more of the components of thesystem 100, instead of or in addition to thepole 110, may be adjustable to vary the center of gravity of thesystem 100 to suit a user's preferences and the application at hand. For example, thebattery 122 may be mounted in a housing that is adjustably coupled to a handle housing (not shown) and can be moved along the longitudinal axis 130 (e.g., using a threaded track, not shown) to adjust the center of gravity of thesystem 100. -
FIG. 9 is a cross-sectional illustration of aportion 900 of an embodiment of the pole-attached power tool system 100 (FIG. 1 ). Theportion 900 illustrates an embodiment of the relative positions of afirst handle 104 a, asecond handle 104 b, ahandle housing 132, theelectric motor 106, thegear box 108, and thebattery 122.FIG. 6 also illustrates theswitch 116, which may be operable by a user to control actuation of a power tool (not shown) disposed at the end of thepole 110. Electrical connectors 618 (e.g., one or more cables) may couple theswitch 116, theelectric motor 106 and thebattery 122. Adrive member 112 may be coupled between the electric motor 106 (e.g., via the gear box 108) and the power tool (not shown). -
FIG. 10 is a flow diagram illustrating aprocess 1000 for manufacturing a pole-attached power tool system (e.g., thesystem 100 ofFIG. 1 ), in accordance with some embodiments. It may be recognized that, while the operations of the process 1000 (and all other processes disclosed herein) may be arranged in a particular order and illustrated once each, in various embodiments, one or more of the operations may be repeated, omitted or performed out of order. Any of the operations of theprocess 1000 may be performed in accordance with any of the embodiments of thesystem 100 described herein. - The
process 1000 may begin at theoperation 1002, in which a pole may be provided (e.g., thepole 110 ofFIG. 1 ). The pole may have a first end, a second end, and an interior region. - At the
operation 1004, a handle (e.g., thehandle 104 ofFIG. 1 ) may be provided proximate to the first end of the pole. - At the
operation 1006, an electric motor (e.g., theelectric motor 106 ofFIG. 1 ) may be provided proximate to the first end of the pole. - At the
operation 1008, a power tool (e.g., thepower tool 114 ofFIG. 1 ) may be provided proximate to the second end of the pole. - At the
operation 1010, a drive member (e.g., thedrive member 112 ofFIG. 1 ) may be provided within the interior region. The drive member provided at theoperation 1010 may be mechanically coupled with the electric motor (provided at the operation 1006) and the power tool (provided at the operation 1008) to transfer power generated by the electric motor to the power tool. -
FIG. 11 is a flow diagram illustrating aprocess 1100 for manufacturing a pole-attached power tool system (e.g., thesystem 100 ofFIG. 1 ), in accordance with some embodiments. Any of the operations of theprocess 1100 may be performed in accordance with any of the embodiments of thesystem 100 described herein. - The
process 1000 may begin at theoperation 1102, in which a pole may be provided (e.g., thepole 110 ofFIG. 6 ). The pole may have a first end, a second end, and an interior region. - At the
operation 1104, a first handle (e.g., thehandle 104 a ofFIG. 6 ) and a second handle (e.g., thehandle 104 b ofFIG. 6 ) may be provided proximate to the first end of the pole. The second handle may be provided between the first handle and the second end of the pole. - At the
operation 1106, an electric motor (e.g., theelectric motor 106 ofFIG. 6 ) may be provided between the first and second handles. - At the
operation 1108, a power tool (e.g., thepower tool 114 ofFIG. 6 ) may be provided proximate to the second end of the pole. - At the
operation 1110, a drive member (e.g., thedrive member 112 ofFIG. 6 ) may be provided within the interior region. The drive member provided at theoperation 1110 may be mechanically coupled with the electric motor (provided at the operation 1106) and the power tool (provided at the operation 1108) to transfer power generated by the electric motor to the power tool. - Although certain embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that a wide variety of alternate and/or equivalent embodiments or implementations calculated to achieve the same purposes may be substituted for the embodiments shown and described without departing from the scope. Those with skill in the art will readily appreciate that embodiments may be implemented in a very wide variety of ways. This application is intended to cover any adaptations or variations of the embodiments discussed herein.
Claims (20)
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10843324B2 (en) | 2015-03-26 | 2020-11-24 | Husqvarna Ab | Visible motor saw head layout |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150068783A1 (en) * | 2013-09-06 | 2015-03-12 | Blount, Inc. | Pole-attached power tool systems |
US9890821B2 (en) * | 2015-02-20 | 2018-02-13 | Blount, Inc. | Clutch for electric tool |
US10894296B2 (en) * | 2015-08-20 | 2021-01-19 | Nelson Stud Welding, Inc. | Light weight cordless stud welder |
US10537983B2 (en) * | 2016-10-17 | 2020-01-21 | Black & Decker, Inc. | Modular power tool |
EP3983176B1 (en) * | 2019-06-17 | 2023-05-10 | Atlas Copco Industrial Technique AB | Hand held power tool |
JP7296833B2 (en) * | 2019-09-12 | 2023-06-23 | 株式会社マキタ | work machine |
CN214758032U (en) * | 2020-10-29 | 2021-11-19 | 南京德朔实业有限公司 | Chain saw |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2845691A1 (en) * | 2013-09-06 | 2015-03-11 | Blount, INC. | Pole-attached power tool systems |
Family Cites Families (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3657813A (en) * | 1968-11-29 | 1972-04-25 | Mc Graw Edison Co | Powered tree pruning saw |
US4207675A (en) * | 1978-05-15 | 1980-06-17 | Clarence Burchell | Adjustable utility extension handle for electrically powered handtool |
US4400028A (en) | 1981-04-21 | 1983-08-23 | Conrad James R | Remote driving tool with tubular lock feature |
US4619162A (en) * | 1982-09-30 | 1986-10-28 | Laere Christiaan G M | Hand-holdable electric power tool apparatus |
US4654971A (en) * | 1985-09-13 | 1987-04-07 | Hudd Enterprises | Prunner with collapsible drive shaft and housing |
US4911039A (en) * | 1988-10-20 | 1990-03-27 | Sol-Plex | Electric extension pole |
US4924573A (en) * | 1989-03-15 | 1990-05-15 | Huddleston Earl M | Pruner with power driven extension |
US5013282A (en) * | 1989-11-20 | 1991-05-07 | Technic Tool Corporation | Extendible shaft assembly for portable tools |
US5261162A (en) * | 1992-12-14 | 1993-11-16 | Frederick Siegler | Folding pole hedge trimmer |
TW292965B (en) * | 1995-08-07 | 1996-12-11 | Fiskars Inc | Tool for performing lopping, trimming, pruning and similar cutting operations |
US5718050A (en) * | 1996-03-08 | 1998-02-17 | Technic Tool Corporation | Pruning cutter |
DE19618024A1 (en) * | 1996-05-04 | 1997-11-06 | Stihl Maschf Andreas | Hand-guided machine for stripping branches |
SE9801708L (en) * | 1998-05-14 | 1999-01-25 | Jerzy Janczak | Operating device |
DE10045598B4 (en) * | 2000-09-15 | 2014-03-20 | Andreas Stihl Ag & Co. | Guide tube for a hand-held implement |
DE10050696B4 (en) * | 2000-10-13 | 2014-12-24 | Andreas Stihl Ag & Co. | Hand-guided implement, in particular pruners |
US6588065B1 (en) * | 2001-09-27 | 2003-07-08 | Tucker, Iii John C. | Electric telescoping pole |
US7484300B2 (en) * | 2004-09-09 | 2009-02-03 | Black & Decker Inc. | Extensible pole saw having separable sections |
US7752760B2 (en) * | 2005-06-30 | 2010-07-13 | Black & Decker, Inc. | Portable trimmer having rotatable power head |
US7913403B1 (en) * | 2006-06-08 | 2011-03-29 | Peter Douglas Willetts | Reciprocating pruning saw |
US8136254B2 (en) * | 2007-02-06 | 2012-03-20 | Mtd Products Inc | Split power tool with extension |
CN101273694B (en) | 2007-03-30 | 2011-03-30 | 苏州宝时得电动工具有限公司 | Hand-hold operating apparatus |
US9492941B2 (en) | 2007-11-08 | 2016-11-15 | Echo, Incorporated | Apparatus having a tool on an elongate pole |
US8020304B2 (en) * | 2008-02-13 | 2011-09-20 | Echo, Incorporated | Power transmission assembly for tool mounted on an elongate pole |
DE102009012178B4 (en) * | 2009-02-27 | 2019-07-04 | Andreas Stihl Ag & Co. Kg | Battery operated, handheld implement |
DE102009002970A1 (en) | 2009-05-11 | 2010-11-18 | Robert Bosch Gmbh | Hand tool machine, in particular electric hand tool machine |
US9414540B2 (en) * | 2010-03-24 | 2016-08-16 | Aero-Flex Technologies, Inc. | Oriented trimmer line |
CN202489891U (en) | 2011-12-26 | 2012-10-17 | 杨成洁 | Electric mop |
US8882166B2 (en) * | 2012-08-02 | 2014-11-11 | Mark J. Ramsey | Motorized extension pole |
-
2013
- 2013-09-06 US US14/020,721 patent/US20150068783A1/en not_active Abandoned
- 2013-11-04 US US14/071,537 patent/US9357712B2/en active Active
-
2014
- 2014-09-03 EP EP14183343.4A patent/EP2845691B1/en active Active
- 2014-09-05 CN CN201410451944.0A patent/CN104416549A/en active Pending
-
2016
- 2016-06-01 US US15/170,702 patent/US20160271783A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2845691A1 (en) * | 2013-09-06 | 2015-03-11 | Blount, INC. | Pole-attached power tool systems |
US20150068783A1 (en) * | 2013-09-06 | 2015-03-12 | Blount, Inc. | Pole-attached power tool systems |
US9357712B2 (en) * | 2013-09-06 | 2016-06-07 | Blount, Inc. | Pole-attached power tool systems |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10843324B2 (en) | 2015-03-26 | 2020-11-24 | Husqvarna Ab | Visible motor saw head layout |
Also Published As
Publication number | Publication date |
---|---|
EP2845691A1 (en) | 2015-03-11 |
US20150068050A1 (en) | 2015-03-12 |
US20150068783A1 (en) | 2015-03-12 |
EP2845691B1 (en) | 2016-08-03 |
US9357712B2 (en) | 2016-06-07 |
CN104416549A (en) | 2015-03-18 |
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