Hand-operated scroll sawing machine with a support surface that can be detachably clipped to a sawing table
AssigneeRobert Bosch GmbH
InventorsAlfred Frech, Tobias Lutz, Uwe Engelfried
Life of this patent
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Abstract
A handheld power fret saw (10) having a power fret saw blade (33), which can be clamped releasably between two arms (122, 222), on their ends, that are preferably formed of a U-shaped bracket (22) comprising tubing, the end of one of the arms (221, 222) carrying a handgrip (13), is used especially universally with high precision because the power fret saw (10) can be clipped releasably, in particular in the manner of a bayonet mount, to a sawing table (37), and together with the sawing table (37) the power fret saw (10) forms a portable handheld power tool, which when the sawing table (37) is secured to a workbench or the like serves as a stationary tool.
Claims12
A handheld power fret saw (10) having a power fret saw blade (33) and two arms, wherein said saw blade (33) is clamped releasably between the two arms (122, 222), wherein said two arms comprise a U-shaped bracket (22) comprising tubing, wherein an end of one of the arms (221, 222) has a handgrip (13), characterized in that:
- the power fret saw (10) is releasably mountable to a sawing table (37), thereby forming a portable handheld power tool, and wherein said portable handheld power tool converts to a stationary tool when the sawing table (37) is secured to a workbench, wherein a base housing (12) adjoins the handgrip (13) and extends farther to the rear and acts as a forearm support, wherein the handgrip (13) extends under the sawing table in such a way that the handgrip can be grasped and guided freely with a hand of the user, so that the power fret saw (10) coupled to the sawing table (37) is used handily and conveniently together with the sawing table as a portable handheld power tool for selected purposes and the base housing (12) and the sawing table (37) have flat upper faces which are in alignment and on the same planar surface with each other.
A handheld power fret saw (10) having a power fret saw blade (33) and two arms, wherein said saw blade (33) is clamped releasably between the two arms (122, 222), wherein said two arms comprise a U-shaped bracket (22) comprising tubing, wherein an end of one of the arms (221, 222) has a handgrip (13), characterized in that:
- the power fret saw (10) is releasably mountable to a sawing table (37), thereby forming a portable handheld power tool, and wherein said portable handheld power tool converts to a stationary tool when the sawing table (37) is secured to a workbench, wherein a lower one of said two arms (221) carries a base housing (12), from which the handgrip (13) emerges to form a curved angled throat (14), wherein in an operating position, said throat (14) conforms to a hand of a user and is clamped vertically thereto and horizontally therein, wherein said lower arm (221) emerges at the back from the base housing (12) and merges in curved fashion at a top and front with a second of the two arms (222), and the base housing (12) and the sawing table (37) have flat upper faces which are in alignment and on the same planar surface with each other.
A handheld power fret saw (10) having a power fret saw blade (33) and two arms, wherein said saw blade (33) is clamped releasably between the two arms (122, 222), wherein said two arms comprise a U-shaped bracket (22) comprising tubing, wherein an end of one of the arms (221, 222) has a handgrip (13), characterized in that:
- the power fret saw (10) is releasably mountable to a sawing table (37), thereby forming a portable handheld power tool, and wherein said portable handheld power tool converts to a stationary tool when the sawing table (37) is secured to a workbench, wherein the sawing table (37) has a vacuum cleaning stub (38) for attaching a vacuum cleaning coupling to a vacuum cleaner that communicates with a vacuum cleaning opening (39) on bearing faces (18, 137) of a base housing (12).
A handheld power fret saw (10) having a power fret saw blade (33) and two arms, wherein said saw blade (33) is clamped releasably between the two arms (122, 222) wherein said two arms comprise a U-shaped bracket (22) comprising tubing, wherein an end of one of the arms (221, 222) has a handgrip (13), characterized in that:
- the power fret saw (10) is releasably mountable to a sawing table (37), thereby forming a portable handheld power tool, and wherein said portable handheld power tool converts to a stationary tool when the sawing table (37) is secured to a workbench, wherein the sawing table (37) has a continuous recess (40) open at one side, wherein said continuous recess corresponds with a contour of a base housing (12) and into which the power fret saw (10) can be inserted.
A handheld power fret saw (10) having a power fret saw blade (33) and two arms, wherein said saw blade (33) is clamped releasably between the two arms (122, 222), wherein said two arms comprise a U-shaped bracket (22) comprising tubing, wherein an end of one of the arms (221, 222) has a handgrip (13), characterized in that:
- the power fret saw (10) is releasably mountable to a sawing table (37), thereby forming a portable handheld power tool, and wherein said portable handheld power tool converts to a stationary tool when the sawing table (37) is secured to a workbench, wherein the power fret saw (10) has a bearing face (18) for supporting a workplace (19) on top of a base housing (12), wherein said base housing (12) carries the handgrip (13), wherein the base housing (12) and the sawing table (37) are movable relative to one another, and wherein upon coupling to the sawing table (37), a flat, upper bearing face (18) of said base housing (12) is oriented in alignment with a flat, upper support face (137) of the sawing table (37), wherein the support face includes grooves (20).
A handheld power fret saw (10) having a power fret saw blade (33) and two arms, wherein said saw blade (33) is clamped releasably between the two arms (122, 222), wherein said two arms comprise a U-shaped bracket (22) comprising tubing, wherein an end of one of the arms (221, 222) has a handgrip (13), characterized in that;
- the power fret saw (10) is releasably mountable to a sawing table (37), thereby forming a portable handheld power tool, and wherein said portable handheld power tool converts to a stationary tool when the sawing table (37) is secured to a workbench, wherein said power fret saw has a bearing face (18) for supporting a workpiece (19) disposed on a base housing (12), wherein said bearing face (18) has a flat course above a lower one of said two arms (221), so that workpieces (19) machined between the arms (122, 222) are displaced on the bearing faces (18, 137) up to a stop at an arch of the bracket (22), without touching one of the arms (221, 222).
A handheld power fret saw (10) having a power fret saw blade (33) and two arms, wherein said saw blade (33) is clamped releasably between the two arms (122, 222), wherein said two arms comprise a U-shaped bracket (22) comprising tubing, wherein an end of one of the arms (221, 222) has a handgrip (13), characterized in that:
- the power fret saw (10) has a base housing (12) and is releasably and rigidly mountable to a sawing table (37), thereby forming a portable handheld power tool, wherein said power fret saw (10), when rigidly coupled to the sawing table, is operatable with only a single hand of a user, and wherein said portable handheld power tool converts to a stationary tool when the sawing table (37) is secured to a workbench and the base housing (12) and the sawing table (37) have flat upper faces which are in alignment and on the same planar surface with each other.
Dependencies are inferred from the claim text.