CA2190037A1 - Extension handle device for a hand held hedge trimmer - Google Patents
Extension handle device for a hand held hedge trimmerInfo
- Publication number
- CA2190037A1 CA2190037A1 CA002190037A CA2190037A CA2190037A1 CA 2190037 A1 CA2190037 A1 CA 2190037A1 CA 002190037 A CA002190037 A CA 002190037A CA 2190037 A CA2190037 A CA 2190037A CA 2190037 A1 CA2190037 A1 CA 2190037A1
- Authority
- CA
- Canada
- Prior art keywords
- trimmer
- section
- sleeve
- handle
- hedge trimmer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/835—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes
- A01D34/90—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes for carrying by the operator
- A01D34/902—Ergonomic provisions
-
- 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
- A01G3/04—Apparatus for trimming hedges, e.g. hedge shears
- A01G3/047—Apparatus for trimming hedges, e.g. hedge shears portable
- A01G3/053—Apparatus for trimming hedges, e.g. hedge shears portable motor-driven
-
- 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
- A01G3/06—Hand-held edge trimmers or shears for lawns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
- B25G1/06—Handle constructions reversible or adjustable for position
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Harvester Elements (AREA)
Abstract
The present description describes an extension handle device which is readily attached to a hedge trimmer without the use of any tools.
The device includes a molded plastic trimmer engaging sleeve that is easily attached to the body of the trimmer. It further includes a multi-positional handle joint that allows the operator to set the trimmer itself at various positions including at ninety degrees to the main handle. Also included is a guarded trigger mechanism as well as a device that is designed to allow the user to rest the device against his thigh or hip in order to steady the trimmer, thereby allowing for a more even trimmed hedge.
The device includes a molded plastic trimmer engaging sleeve that is easily attached to the body of the trimmer. It further includes a multi-positional handle joint that allows the operator to set the trimmer itself at various positions including at ninety degrees to the main handle. Also included is a guarded trigger mechanism as well as a device that is designed to allow the user to rest the device against his thigh or hip in order to steady the trimmer, thereby allowing for a more even trimmed hedge.
Description
2l qoo37 ~ackground of the invention 1. Field of the Invention This invention relates to a handle device for hand held hedge trimmer .
Description of Related Art When trimming cedar or other types of hedges, it often occurs that the person doing the trimming is either not tall enough to trim the top and higher parts of the hedge or does not possess a ladder that is high enough or stable enough to allow for the trimming of the higher parts of the hedge.
Prior art includes a number of attempts to solve this problem, however it appears that the problem has not been successfully solved. U.S. patent number S,070,576 attempts a solution and does so by using a cradle device that holds the body of the trimmer and a long handle to permit the user to reach the tops of high hedges from the ground.
U.S. patent number 4,638,562 describes an extension handle for a trimmer that utilizes a handle that is bent to approximately a ninety degree angle and supports the hedge trimmer at its top by a box-shaped cradle device.
Description of Related Art When trimming cedar or other types of hedges, it often occurs that the person doing the trimming is either not tall enough to trim the top and higher parts of the hedge or does not possess a ladder that is high enough or stable enough to allow for the trimming of the higher parts of the hedge.
Prior art includes a number of attempts to solve this problem, however it appears that the problem has not been successfully solved. U.S. patent number S,070,576 attempts a solution and does so by using a cradle device that holds the body of the trimmer and a long handle to permit the user to reach the tops of high hedges from the ground.
U.S. patent number 4,638,562 describes an extension handle for a trimmer that utilizes a handle that is bent to approximately a ninety degree angle and supports the hedge trimmer at its top by a box-shaped cradle device.
2~0037 -Finally, U.S. patent 3.597,842 discloses an elongated curved handle for use with a hedge trimmer to enable a user to reach large shrubs in extended beds.
While the above described devices are useful it can be seen that they do not completely solve the problem of trimming high hedges with conventional hedge trimmers.
Summary of the Invention The present invention provides an extension handle device which is readily attached to a hedge trimmer without the use of any tools. The device includes a molded plastic trimmer eng~ging sleeve that is easily attached to the body of the trimmer. It further includes a multi-positional handle joint that allows the operator to set the trimmer itself at various positions including at ninety degrees to the main handle. Also included is a guarded trigger me~h~nism as well as a device that is designed to allow the user to rest the device ~g~in.st his thigh or hip in order to steady the trimmer, thereby allowing for a more even trimmed hedge.
Brief Description of the Drawings Figure 1 is an illustrational top view of the hedge trimmer extension h~n-ile.
Figure 2 is an illustrational side view showing the three main components of the device.
Figure 3 is a view .simil~r to figure 1 but with parts broken away tom illustrate the internal construction of the leg rest.
Figure 4 is a top view of the trimmer eng~ging saddle device.
Figure 5 is a side of the trimmer saddle device .
Figure 6 is a view showing the internal construction of the s~ lle device.
Figure 7 and 8 are cross sectional views of both sides of the saddle device.
Figure 9 is a cross sectional view of the assembled saddle device.
Figure 10 is a side view of the hinged joint between the two parts of the handle of the device.
Figure 11 is a top view of the hinged joint .
Figures 12 and 13 are cross sectional views of the leg rest.
Description of the Preferred Embodiment The described hedge trimmer extension device consists of the sleeve section 1, adjustable handle joint section 2, trigger 3, leg rest 4 and handle section 5. Sleeve section 1 is specifically rlesigned to fit the body portion of a common hedge trimmer available on today's market. Is must be understood the sleeve section 1 may be made to suit the body contours of many trimmer tools that may be on the marked today or in the future. The sleeve section is formed with an open end 6 that accommodates the end of an adjustable handle joint section 16 and is fastened snugly there around by bolts 7 that clamp the sleeve to the handle joint section 16 in a strong and safe manner.
The sleeve section is tubular shaped where the handle joint portion 16 is fitted. About midway along the length of the sleeve the wall,of the sleeve is partially cut away to provide a u-shaped trough 17 as depicted in figures 2 and 5 of the drawings. This trough- like section is shaped in such a manner so as to accomodate the end of the body portion of an electric hedge trimmer with a snug fit. Figure 6 of the drawings shows that the irlner wallsl8 of the sleeve portion are provided with a series of circumferencial and longitllllin~l ribs as shown by the reference numeral 19 in figures 7 and 8 of the drawings. These ribs provides strength and rigidity to the sleeve section 1.
The sleeve section 1 is further provided with a clamp me~h~ni~m 8 in figures 1 to 3. The clamp me~h~nism consists of a semi-circular portion 9 that is integrally formed with triangular tab portion 28 and part of a pivoting hinge portion 29 as shown in figure 6 and 7. The u-shaped side walls of the trough 17 are provided with the second part of the pivoting hinge portion 29 as well as a second tab portion that overlies the the tab portion 28 when the clamp is closed. There is a gap between the two tab portions prior to the clasp being closed.
The two tabs are formed with holes or bores that are aligned in such a manner as to one above the other in such a way that a bolt may be used to fasten the tabs of the clamp to close the gap and thereby securely maintain the sleeve about the body of the trimmer. The ~, bolt may be fastened via a nut or by the use of a thread formed on the inside wall of the hole or bore.
The adjustable hinge section will be described by reference to figures lO and 11. The hinge section consists of two members 20 and 21.
Member 20 is made up of a cylindrical stub-like part 26 that is ~iesigned to fit very tightly into the open tubular end of the handle section 5 in such a manner that these two sections will not separate when the device is in use. Member 21 also has a cylindrical stub-like part 27 that is designed to fit securely into the open end 6 of the saddle portion. Member 20 also has circular portion 25 that has formed therein a series of grooves 22 that extend around the circumference of the circular portion. These grooves 22 are ~1esigned to engage with correspondingly spaced teeth 23 formed on hinge member 21 as will be seen by looking at figure 11 of the drawings.
Hinge member 21 is simil~r to member 20 with the exception of one of them having grooves and the other having teeth by which they may be angularly displaced from each other. When assembled together members 20 and 21 form the hinge section 2. The two members are interconnected through a pin-like fastener via circular holes 24 formed in each of the two members for that purpose. The members 20 and 21 may be adjusted to different angles through the use of the grooves 22 and the teeth 23 to adjust the angle of the trimmer with respect to the handle 5 in accordance with the wishes of the operator.
2 l 9oo37 A further aspect of the invention is the trigger device generally shown by the numeral 3 in figures 2 and3. While the numeral 3 refers to the actual trigger or switch that controls the flow of electrical current to the trimmer, the numeral 31 denotes a trigger guard that prevents inadvertent use of the trimmer by the switch being accidentally moved to the on position while the unit is not being used for its intended purpose. The numeral 32 denotes the switch mechanism per se and is mounted in the tubular handle section S of the trimmer by two screws or bolts identified by the numeral 33 in figure 3 of the drawings. The switch 3 is wired to the electrical line that runs the trimmer and is concealed in the tubular handle section 5 of the device. The electrical line enters the handle S
at or near the end of the handle via an opening that is not shown in the drawings, and is located approximate the leg rest 4.
The trimmer extension device 4 includes a leg rest section that is mounted on the end of the extension device opposite from the end that mounts the hedge trimmer device itself and is described with the aid of figures 1,2,12 and 13 of the drawings. The leg rest includes a mounting stub 40 that is designed to fit snugly or permanently into the end of the handle that is remote from the end that includes the hedge trimmer. The leg rest is generally triangular shaped and may include two mounting bolts 41 that clamps the two sections of the rest to the stub 40 as shown in figure 13. The side of the rectangular leg rest remote from the handle 5 is shaped generally in the arc of a circle towards the handle section as shown by the reference numeral 42 in figure 13. This allows the operator ~, ~1 90037 od the trimmer extension to better control the device when trimming a high hedge while standing on the ground. The leg rest is reinforced by a series of webs 43 that greatly increases the strength of the rest.
The leg rest may also be cushioned by the use of a coushion of relatively dense foam plastic, not shown in the drawings.
The section of the handle that is generally used by an operator is cushioned by a layer of material that not only makes the handle easier to grip but cushions any vibrations that may em~n~te from the hedge trimmer while in use.
While the above described devices are useful it can be seen that they do not completely solve the problem of trimming high hedges with conventional hedge trimmers.
Summary of the Invention The present invention provides an extension handle device which is readily attached to a hedge trimmer without the use of any tools. The device includes a molded plastic trimmer eng~ging sleeve that is easily attached to the body of the trimmer. It further includes a multi-positional handle joint that allows the operator to set the trimmer itself at various positions including at ninety degrees to the main handle. Also included is a guarded trigger me~h~nism as well as a device that is designed to allow the user to rest the device ~g~in.st his thigh or hip in order to steady the trimmer, thereby allowing for a more even trimmed hedge.
Brief Description of the Drawings Figure 1 is an illustrational top view of the hedge trimmer extension h~n-ile.
Figure 2 is an illustrational side view showing the three main components of the device.
Figure 3 is a view .simil~r to figure 1 but with parts broken away tom illustrate the internal construction of the leg rest.
Figure 4 is a top view of the trimmer eng~ging saddle device.
Figure 5 is a side of the trimmer saddle device .
Figure 6 is a view showing the internal construction of the s~ lle device.
Figure 7 and 8 are cross sectional views of both sides of the saddle device.
Figure 9 is a cross sectional view of the assembled saddle device.
Figure 10 is a side view of the hinged joint between the two parts of the handle of the device.
Figure 11 is a top view of the hinged joint .
Figures 12 and 13 are cross sectional views of the leg rest.
Description of the Preferred Embodiment The described hedge trimmer extension device consists of the sleeve section 1, adjustable handle joint section 2, trigger 3, leg rest 4 and handle section 5. Sleeve section 1 is specifically rlesigned to fit the body portion of a common hedge trimmer available on today's market. Is must be understood the sleeve section 1 may be made to suit the body contours of many trimmer tools that may be on the marked today or in the future. The sleeve section is formed with an open end 6 that accommodates the end of an adjustable handle joint section 16 and is fastened snugly there around by bolts 7 that clamp the sleeve to the handle joint section 16 in a strong and safe manner.
The sleeve section is tubular shaped where the handle joint portion 16 is fitted. About midway along the length of the sleeve the wall,of the sleeve is partially cut away to provide a u-shaped trough 17 as depicted in figures 2 and 5 of the drawings. This trough- like section is shaped in such a manner so as to accomodate the end of the body portion of an electric hedge trimmer with a snug fit. Figure 6 of the drawings shows that the irlner wallsl8 of the sleeve portion are provided with a series of circumferencial and longitllllin~l ribs as shown by the reference numeral 19 in figures 7 and 8 of the drawings. These ribs provides strength and rigidity to the sleeve section 1.
The sleeve section 1 is further provided with a clamp me~h~ni~m 8 in figures 1 to 3. The clamp me~h~nism consists of a semi-circular portion 9 that is integrally formed with triangular tab portion 28 and part of a pivoting hinge portion 29 as shown in figure 6 and 7. The u-shaped side walls of the trough 17 are provided with the second part of the pivoting hinge portion 29 as well as a second tab portion that overlies the the tab portion 28 when the clamp is closed. There is a gap between the two tab portions prior to the clasp being closed.
The two tabs are formed with holes or bores that are aligned in such a manner as to one above the other in such a way that a bolt may be used to fasten the tabs of the clamp to close the gap and thereby securely maintain the sleeve about the body of the trimmer. The ~, bolt may be fastened via a nut or by the use of a thread formed on the inside wall of the hole or bore.
The adjustable hinge section will be described by reference to figures lO and 11. The hinge section consists of two members 20 and 21.
Member 20 is made up of a cylindrical stub-like part 26 that is ~iesigned to fit very tightly into the open tubular end of the handle section 5 in such a manner that these two sections will not separate when the device is in use. Member 21 also has a cylindrical stub-like part 27 that is designed to fit securely into the open end 6 of the saddle portion. Member 20 also has circular portion 25 that has formed therein a series of grooves 22 that extend around the circumference of the circular portion. These grooves 22 are ~1esigned to engage with correspondingly spaced teeth 23 formed on hinge member 21 as will be seen by looking at figure 11 of the drawings.
Hinge member 21 is simil~r to member 20 with the exception of one of them having grooves and the other having teeth by which they may be angularly displaced from each other. When assembled together members 20 and 21 form the hinge section 2. The two members are interconnected through a pin-like fastener via circular holes 24 formed in each of the two members for that purpose. The members 20 and 21 may be adjusted to different angles through the use of the grooves 22 and the teeth 23 to adjust the angle of the trimmer with respect to the handle 5 in accordance with the wishes of the operator.
2 l 9oo37 A further aspect of the invention is the trigger device generally shown by the numeral 3 in figures 2 and3. While the numeral 3 refers to the actual trigger or switch that controls the flow of electrical current to the trimmer, the numeral 31 denotes a trigger guard that prevents inadvertent use of the trimmer by the switch being accidentally moved to the on position while the unit is not being used for its intended purpose. The numeral 32 denotes the switch mechanism per se and is mounted in the tubular handle section S of the trimmer by two screws or bolts identified by the numeral 33 in figure 3 of the drawings. The switch 3 is wired to the electrical line that runs the trimmer and is concealed in the tubular handle section 5 of the device. The electrical line enters the handle S
at or near the end of the handle via an opening that is not shown in the drawings, and is located approximate the leg rest 4.
The trimmer extension device 4 includes a leg rest section that is mounted on the end of the extension device opposite from the end that mounts the hedge trimmer device itself and is described with the aid of figures 1,2,12 and 13 of the drawings. The leg rest includes a mounting stub 40 that is designed to fit snugly or permanently into the end of the handle that is remote from the end that includes the hedge trimmer. The leg rest is generally triangular shaped and may include two mounting bolts 41 that clamps the two sections of the rest to the stub 40 as shown in figure 13. The side of the rectangular leg rest remote from the handle 5 is shaped generally in the arc of a circle towards the handle section as shown by the reference numeral 42 in figure 13. This allows the operator ~, ~1 90037 od the trimmer extension to better control the device when trimming a high hedge while standing on the ground. The leg rest is reinforced by a series of webs 43 that greatly increases the strength of the rest.
The leg rest may also be cushioned by the use of a coushion of relatively dense foam plastic, not shown in the drawings.
The section of the handle that is generally used by an operator is cushioned by a layer of material that not only makes the handle easier to grip but cushions any vibrations that may em~n~te from the hedge trimmer while in use.
Claims (2)
1. A molded plastic hedge trimmer engaging sleeve that is attachable to an electric hedge trimmer body, said sleeve including a first end and a second end, said first end being formed to accommodate the end of an adjustable handle section of an extension handle and being fastened snugly around said end of said adjustable handle section through the use of threaded fasteners, and said second end of said sleeve being partially cut away to provide a u-shaped trough-like section, said u-shaped trough-like section thereby having two edges, said trough-like section being shaped to accommodate an end of said electric hedge trimmer body, said sleeve further including a clamp mechanism consisting of a semi-circular portion that is integrally formed with a tab portion and a first half of a pivoting hinge and one of said edges being formed with a second half of said pivoting hinge whereby said hinge portions form a complete hinge and the other of said edges being formed with a tab portion such that when said clamp mechanism is fastened, said tabs overlie each other and may be fastened by a threaded fastener to securely and safely fasten said trimmer to said sleeve and thereby to said extension handle.
2. A molded plastic hedge trimmer engaging sleeve according to claim 1 wherein a series of circumferential and longitudinal ribs are provided on the inner walls.
8.
8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002190037A CA2190037A1 (en) | 1996-11-12 | 1996-11-12 | Extension handle device for a hand held hedge trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002190037A CA2190037A1 (en) | 1996-11-12 | 1996-11-12 | Extension handle device for a hand held hedge trimmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2190037A1 true CA2190037A1 (en) | 1998-05-12 |
Family
ID=4159233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002190037A Abandoned CA2190037A1 (en) | 1996-11-12 | 1996-11-12 | Extension handle device for a hand held hedge trimmer |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2190037A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7093366B2 (en) | 2003-06-23 | 2006-08-22 | William Edward Black | Ground supported portable tool guide |
-
1996
- 1996-11-12 CA CA002190037A patent/CA2190037A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7093366B2 (en) | 2003-06-23 | 2006-08-22 | William Edward Black | Ground supported portable tool guide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |