CA2063091A1 - Heatable handle - Google Patents
Heatable handleInfo
- Publication number
- CA2063091A1 CA2063091A1 CA002063091A CA2063091A CA2063091A1 CA 2063091 A1 CA2063091 A1 CA 2063091A1 CA 002063091 A CA002063091 A CA 002063091A CA 2063091 A CA2063091 A CA 2063091A CA 2063091 A1 CA2063091 A1 CA 2063091A1
- Authority
- CA
- Canada
- Prior art keywords
- handle
- tube
- handle tube
- sleeve
- heating element
- 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
- 239000004020 conductor Substances 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000005485 electric heating Methods 0.000 claims abstract description 3
- 229920001971 elastomer Polymers 0.000 abstract description 4
- 239000000806 elastomer Substances 0.000 abstract description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
- H05B3/30—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material on or between metallic plates
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Resistance Heating (AREA)
- Surface Heating Bodies (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
A B S T R A C T
An electric heating element is used for heating a handle of a hand tool such as a motor saw, said handle comprising a handle tube (19) and a sleeve (21) of elastomer mounted thereon. In order to avoid dlversion of heat by the handle tube, the heating element comprises an elongated metal body (11) pro-vided with electric resistance conductors and inserted into an elongated cavity (21) provided in the sleeve and extending in parallel with the handle tube.
An electric heating element is used for heating a handle of a hand tool such as a motor saw, said handle comprising a handle tube (19) and a sleeve (21) of elastomer mounted thereon. In order to avoid dlversion of heat by the handle tube, the heating element comprises an elongated metal body (11) pro-vided with electric resistance conductors and inserted into an elongated cavity (21) provided in the sleeve and extending in parallel with the handle tube.
Description
(~as~ 3 9 ~
~le~ a e_an lle The present InveIltion relates to a heatable handle for a hand tool such as a motor saw.
It is generally known that small light electric heating elements can be manufactured of conductive sheet materlal of which one or more current conduc-tors have been punched out. Sheets of ~his type can be applied to a Eurface to be heated by electrlc current flowing through the con luctor In the particular case of a handle heater for a motor saw sheet material Is used whlch Is wound onto a metal handle tube on whlch the handle Is mounted. It has appeared how-ever that a large portlon o~ the heat from the elerment Is dlver~ed by such a metal tube without reachlng ~he handle whlch rneans that an unnecessarlly large amount of current must be supplled to the element. (~ne way of avoldlng thls heat dlverslon would be to Insulate the element ~rom the tube and the present Inventlon relates to arranglng the element In a handle such as to keep the emitted heat within the same.
Accordlng co the present Invention an electrlc heatlng element Is provlded In a rubber handle or the llke which Is sllpped onto a handle tube of a hand tool havlng a current source for supplying current to the element. The dlmenslons of the element are relatlvely small and the surrounding handle Is of a low heat conductive material whlch could result In a too hlgh temperature of the element.Thls problem is solved In accordance with the Inventlon by means of a metallic body on whlch the conductors are applied. The body contrlbutes to an improved radlation from the element whlch is thereby kept at a delimlted temperature.
The Improved features hereby obtained are significant to the Invention and are defined In the characterizing clause of clalm 1.
An embodlment of a handle accordlng to the invention Is descrlbed In the following wlth reference to the accompanying drawing in which a handle and a heating element are shown in perspectlve vlew.
A plate 11 preferably of aluminium and having glossy faces for maximum radlatlon is used as a body for an electrlc hea~ing element 10. A thln sheet 12 havlng Inserted resistance wire 13 Is wound or glued onto the plate from one end 14 thereof to the other 15 ~and posslbly back ~o the flrst end). The ends of the wire are attached to a pair of contact screws 16 17 which are connected via a supply conduit 18 extending through a handle tube 19 to a switch (not shown) for providlng suitable power for heating.
SD/ih 82-00 2 ~0~30~ ~.
'[he halldle 20 as shown i6 of the "slide-on" type used on blcycles, for example. Ic has tlle shclpe of a sleeve 21 adapted to flt onto the handle tube 1~.
~n elongated cavl~y 22 havinK a T-shaped cross-section is provided in the handlewhlch is preferably macle of rubber or elastomer. The plate element 10 is in-serted into the cavity whlch forms a closed chamber for the element when the handle Is mounted on the tube 19. Thus, both the electric cable and the element are In protected positlons when the handle Is assembled.
The com plete handle has a shape generally as shown ln the attached drawing figure. The base of the element 10 protects and supports the resistance wire with its connecting ends adapted ~o be attached to connec~ion screws of the plate. The required contact pressure between the resistance wire and the supply conduit can thereby be provided. By means of this cohnection arrangement several elements can be interconnected in parallel or in series.
~le~ a e_an lle The present InveIltion relates to a heatable handle for a hand tool such as a motor saw.
It is generally known that small light electric heating elements can be manufactured of conductive sheet materlal of which one or more current conduc-tors have been punched out. Sheets of ~his type can be applied to a Eurface to be heated by electrlc current flowing through the con luctor In the particular case of a handle heater for a motor saw sheet material Is used whlch Is wound onto a metal handle tube on whlch the handle Is mounted. It has appeared how-ever that a large portlon o~ the heat from the elerment Is dlver~ed by such a metal tube without reachlng ~he handle whlch rneans that an unnecessarlly large amount of current must be supplled to the element. (~ne way of avoldlng thls heat dlverslon would be to Insulate the element ~rom the tube and the present Inventlon relates to arranglng the element In a handle such as to keep the emitted heat within the same.
Accordlng co the present Invention an electrlc heatlng element Is provlded In a rubber handle or the llke which Is sllpped onto a handle tube of a hand tool havlng a current source for supplying current to the element. The dlmenslons of the element are relatlvely small and the surrounding handle Is of a low heat conductive material whlch could result In a too hlgh temperature of the element.Thls problem is solved In accordance with the Inventlon by means of a metallic body on whlch the conductors are applied. The body contrlbutes to an improved radlation from the element whlch is thereby kept at a delimlted temperature.
The Improved features hereby obtained are significant to the Invention and are defined In the characterizing clause of clalm 1.
An embodlment of a handle accordlng to the invention Is descrlbed In the following wlth reference to the accompanying drawing in which a handle and a heating element are shown in perspectlve vlew.
A plate 11 preferably of aluminium and having glossy faces for maximum radlatlon is used as a body for an electrlc hea~ing element 10. A thln sheet 12 havlng Inserted resistance wire 13 Is wound or glued onto the plate from one end 14 thereof to the other 15 ~and posslbly back ~o the flrst end). The ends of the wire are attached to a pair of contact screws 16 17 which are connected via a supply conduit 18 extending through a handle tube 19 to a switch (not shown) for providlng suitable power for heating.
SD/ih 82-00 2 ~0~30~ ~.
'[he halldle 20 as shown i6 of the "slide-on" type used on blcycles, for example. Ic has tlle shclpe of a sleeve 21 adapted to flt onto the handle tube 1~.
~n elongated cavl~y 22 havinK a T-shaped cross-section is provided in the handlewhlch is preferably macle of rubber or elastomer. The plate element 10 is in-serted into the cavity whlch forms a closed chamber for the element when the handle Is mounted on the tube 19. Thus, both the electric cable and the element are In protected positlons when the handle Is assembled.
The com plete handle has a shape generally as shown ln the attached drawing figure. The base of the element 10 protects and supports the resistance wire with its connecting ends adapted ~o be attached to connec~ion screws of the plate. The required contact pressure between the resistance wire and the supply conduit can thereby be provided. By means of this cohnection arrangement several elements can be interconnected in parallel or in series.
Claims (3)
1. Heatable handle for a hand tool such as a motor saw, comprising a handle tube (19) and a sleeve (21) of elastormer mounted thereon, c h a r a c t e r -ized in that the sleeve has an elongated cavity (22) extending in parallel with said handle tube and that an elongated electric heating element (10) is provided in said cavity, said element having a body (I l) of metal to which a current conductor (13) is attached.
2. Handle according to claim 1, c h a r a c t e r i z e d in that an electric cable for supplying current to the heating element is provided in the handle tube (19).
3. Handle according to claim 1, c h a r a c t e r i z e d in that the cavity has a T-shaped cross-section in which the leg of the T extends towards the handle tube.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9101093-4 | 1991-04-12 | ||
| SE9101093A SE468242B (en) | 1991-04-12 | 1991-04-12 | HEATABLE HANDLE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2063091A1 true CA2063091A1 (en) | 1992-10-13 |
Family
ID=20382437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002063091A Abandoned CA2063091A1 (en) | 1991-04-12 | 1992-03-16 | Heatable handle |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPH05192880A (en) |
| CA (1) | CA2063091A1 (en) |
| DE (1) | DE4208935C2 (en) |
| IT (1) | IT1259210B (en) |
| RU (1) | RU2046699C1 (en) |
| SE (1) | SE468242B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2408011A (en) * | 2003-11-17 | 2005-05-18 | Luke Matthew Collier | Electrically heated handle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2368671A1 (en) * | 2010-03-25 | 2011-09-28 | Brian Thomas James Miller | Hand grip |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2632244A (en) * | 1949-02-16 | 1953-03-24 | Belsky Charles | Toolholder |
| DE2630236A1 (en) * | 1976-07-06 | 1978-01-12 | Walter Eyermann | Heated handlebars for motorcycle - have heater elements embedded in copper blocks inserted into ends of handlebars |
| DE8422087U1 (en) * | 1984-07-25 | 1984-10-18 | Dähling, Knuth, 2300 Kiel | HANDLEBAR FOR HANDLEBARS FOR MOTORCYCLES |
| DE8613613U1 (en) * | 1986-05-20 | 1986-07-17 | Hiltner, Gretel, 72178 Waldachtal | Heated handle |
-
1991
- 1991-04-12 SE SE9101093A patent/SE468242B/en not_active IP Right Cessation
-
1992
- 1992-03-16 CA CA002063091A patent/CA2063091A1/en not_active Abandoned
- 1992-03-19 DE DE4208935A patent/DE4208935C2/en not_active Expired - Lifetime
- 1992-03-23 JP JP4064680A patent/JPH05192880A/en active Pending
- 1992-04-07 IT ITPN920026A patent/IT1259210B/en active IP Right Grant
- 1992-04-10 RU SU925011656A patent/RU2046699C1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2408011A (en) * | 2003-11-17 | 2005-05-18 | Luke Matthew Collier | Electrically heated handle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05192880A (en) | 1993-08-03 |
| RU2046699C1 (en) | 1995-10-27 |
| ITPN920026A1 (en) | 1993-10-07 |
| SE9101093L (en) | 1992-10-13 |
| DE4208935C2 (en) | 1994-03-10 |
| DE4208935A1 (en) | 1992-10-15 |
| ITPN920026A0 (en) | 1992-04-07 |
| IT1259210B (en) | 1996-03-11 |
| SE468242B (en) | 1992-11-30 |
| SE9101093D0 (en) | 1991-04-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |