CH214959A - Handsaw. - Google Patents
Handsaw.Info
- Publication number
- CH214959A CH214959A CH214959DA CH214959A CH 214959 A CH214959 A CH 214959A CH 214959D A CH214959D A CH 214959DA CH 214959 A CH214959 A CH 214959A
- Authority
- CH
- Switzerland
- Prior art keywords
- handle
- saw
- saw blade
- attached
- bow
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
- B23D51/08—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools
- B23D51/12—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools for use with tools, dealt with in this subclass, which are connected to a carrier at both ends, e.g. bows adjustable in length or height
- B23D51/14—Attachment of the tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
- B23D51/08—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools
- B23D51/12—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools for use with tools, dealt with in this subclass, which are connected to a carrier at both ends, e.g. bows adjustable in length or height
- B23D51/125—Blade tensioning means
Description
Handsäge. Gegenstand vorliegender Erfindung ist eine Handsäge mit einem auswechselbaren Sägeblatt, das mit seinem einen Ende am Sägebogen eingehängt ist. Erfindungsgemäss ist das andere Ende des Sägeblattes an dem am Sägebogen schwenkbar gelagerten Hand griff eingehängt. Dieser Handgriff weist bei einer zweckmässigen Ausführungsform eine als Einhängestelle dienende Vertiefung auf, derart, dass beim Schwenken des Hand griffes in der Gebrauchslage die gegensei tige Entfernung der beiden Einhängestellen des Sägeblattes grösser wird und dadurch das Sägeblatt gespannt wird.
In der beiliegenden Zeichnung ist eine beispielsweise Ausführungsform des Erfin dungsgegenstandes schematisch dargestellt, und es zeigt: Fig.1 eine Handsäge in Gebrauchsstel lung des Griffes, Fig.2 dieselbe bei verschwenktem Griff und entspanntem Sägeblatt, Fig. 3 einen Schnitt nach der Linie III-III in Fig. 1 in grösserem Massstab, Fig. 4 einen Schnitt nach der Linie IV-IV in Fig.1 in grösserem Massstab, Fig. 5 einen Schnitt nach der Linie V-V in Fig. 4 in kleinerem Massstab.
Wie Fig. 1 zeigt, ist am vordern Schen kel 1 eines Sägebogens 2 ein Sägeblatt 3 aus wechselbar eingehängt. Am andern Schen kel 4 des Bogens 2 ist ein Handgriff 5, zum Beispiel aus Holz, Metall oder Kunststoff, drehbar gelagert. Zu diesem Zwecke sitzt dessen Nase 6 schwenkbar auf Zapfen 7, die auf dem Schenkel 4 befestigt sind. An der Nase 6 ist eine als Einhängestelle dienende Vertiefung 8 vorgesehen, in welche der Bol zen 9 des Sägeblattes 3 bei verschwenktem Griff 5 eingehängt wird. Durch Schwenken des Griffes 5 in Pfeilrichtung I (Fig.2) wird das Sägeblatt 3 gespannt, weil in der Lage nach Fig. 1 (Gebrauchslage) der Bol zen 9 weiter von der Einhängestelle des Säge blattes am Schenkel 1 entfernt ist als in der, Lage gemäss Fig. 2.
Die Nase 9' des Handgriffes 5 ist mit einer Verriegelungsvorrichtung versehen. Ein in einer Bohrung 10 drehbar und achsial un- verschiebbar gelagerter Riegel 11 greift über den Schenkel 4 des Bogens und sichert da durch den Griff in der Gebrauchslage. Die Verriegelungsvorrichtung könnte zum Bei spiel auch einen federnden Schnepper auf weisen. Die Form des Handgriffes könnte auch anders als gezeichnet sein; wesentlich ist, dass der Handgriff schwenkbar und ver- riegelbar am Bogen angebracht ist, und dass das eine Sägeblattende an ihm so gelagert ist, dass das Sägeblatt beim Schwenken des Hand griffes gespannt wird.
Es können alle mög lichen Handsägearten, zum Beispiel Baum-, Holz- oder Knochensägen, mit dieser Spann vorrichtung versehen sein.
Handsaw. The subject matter of the present invention is a hand saw with an exchangeable saw blade, one end of which is suspended from the saw bow. According to the invention, the other end of the saw blade is attached to the handle pivotably mounted on the saw bow. This handle has, in an expedient embodiment, a recess serving as a mounting point, such that when the handle is pivoted in the position of use, the mutual distance between the two mounting points of the saw blade is greater and the saw blade is thereby tensioned.
In the accompanying drawings, an example embodiment of the subject of the invention is shown schematically, and it shows: Fig.1 a hand saw in the use position of the handle, Fig.2 the same with pivoted handle and relaxed saw blade, Fig. 3 is a section along the line III- III in FIG. 1 on a larger scale, FIG. 4 a section along the line IV-IV in FIG. 1 on a larger scale, FIG. 5 a section along the line VV in FIG. 4 on a smaller scale.
As Fig. 1 shows, a saw blade 3 is suspended from replaceable on the front leg 1 of a saw bow 2. At the other leg 4 of the bow 2 is a handle 5, for example made of wood, metal or plastic, rotatably mounted. For this purpose, the nose 6 is seated pivotably on pins 7 which are attached to the leg 4. On the nose 6 a recess 8 serving as a suspension point is provided, in which the Bol zen 9 of the saw blade 3 is suspended when the handle 5 is pivoted. By pivoting the handle 5 in the direction of arrow I (Fig. 2) the saw blade 3 is tensioned because in the position of Fig. 1 (position of use) the Bol zen 9 is further away from the attachment point of the saw blade on the leg 1 than in the, Position according to Fig. 2.
The nose 9 'of the handle 5 is provided with a locking device. A bolt 11 rotatably and axially immovably mounted in a bore 10 engages over the leg 4 of the arch and secures it in the position of use through the handle. The locking device could for example also have a resilient snap. The shape of the handle could also be different than drawn; It is essential that the handle is attached to the bow in a pivotable and lockable manner, and that one end of the saw blade is mounted on it in such a way that the saw blade is tensioned when the handle is pivoted.
All possible types of handsaws, for example tree, wood or bone saws, can be provided with this clamping device.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH214959T | 1939-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH214959A true CH214959A (en) | 1941-05-31 |
Family
ID=4448920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH214959D CH214959A (en) | 1939-11-28 | 1939-11-28 | Handsaw. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH214959A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2651341A (en) * | 1949-03-15 | 1953-09-08 | Sandvikens Jernverks Ab | Bow saw |
DE1154697B (en) * | 1954-02-10 | 1963-09-19 | Bernhard Mundorf K G Feilen Un | Hand jig saw, especially hacksaw with exchangeable metal saw blade |
FR2770430A1 (en) * | 1997-10-24 | 1999-05-07 | Yin Han Huang | Hack-saw having blade tension adjusting mechanism |
-
1939
- 1939-11-28 CH CH214959D patent/CH214959A/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2651341A (en) * | 1949-03-15 | 1953-09-08 | Sandvikens Jernverks Ab | Bow saw |
DE1154697B (en) * | 1954-02-10 | 1963-09-19 | Bernhard Mundorf K G Feilen Un | Hand jig saw, especially hacksaw with exchangeable metal saw blade |
FR2770430A1 (en) * | 1997-10-24 | 1999-05-07 | Yin Han Huang | Hack-saw having blade tension adjusting mechanism |
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