Portable compass saw

A portable compass saw having a housing in which are accommodated a drive motor, for a push rod to which is connected a saw blade, and an oscillating drive, which includes a gear which is held, by means of a shaft, in mounting means in said housing;

• a pinion of a drive shaft of said drive motor engages teeth of said gear;
• said gear of said oscillating drive also includes a pin which is disposed at a distance from, and extends parallel to, the axis of rotation of said gear;
• said pin is drivingly connected with a clutch member of said oscillating drive;
• said clutch member is connected to said push rod, and is provided with a guide for said pin, with said guide extending at substantially right angles to the longitudinal axis of said push rod;
• the improvement wherein:
• said teeth of said gear are disposed on that side of the latter which faces said push rod;
• said pinion is disposed in the region between said gear and said push rod;
• and said gear is seated loosely on said shaft, and is held thereon under the load of at least said pinion;
• and
• at least one pressure member which acts on that side of said push rod opposite said oscillating drive;
• and via said push rod and said clutch member, said at least one pressure member exerts a force directed against said gear.

A portable compass saw having a housing in which are accommodated a drive motor, for a push rod to which is connected a saw blade, and an oscillating drive, which includes a gear which is held, by means of a shaft, in mounting means in said housing;

• a pinion of a drive shaft of said drive motor engages teeth of said gear;
• said gear of said oscillating drive also includes a pin which is disposed at a distance from, and extends parallel to, the axis of rotation of said gear;
• said pin is drivingly connected with a clutch member of said oscillating drive;
• said clutch member is connected to said push rod, and is provided with a guide for said pin, with said guide extending at substantially right angles to the longitudinal axis of said push rod;
• the improvement wherein:
• said teeth of said gear are disposed on that side of the latter which faces said push rod;
• said pinion is disposed in the region between said gear and said push rod;
• and said gear is seated loosely on said shaft, and is held thereon under the load of at least said pinion;
• and
• a counter member for generating a vertical stroke of the push rod and of the saw blade;
• said counter member being in the form of a sliding member, which is seated on said pin and cooperates with said guide, which is formed by an inclined surface provided on said clutch member;
• said inclined surface extending at an acute angle to that side of said gear which faces said push rod;
• said sliding member being provided with a correspondingly inclined sliding surface which rests against said inclined surface of said clutch member.