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US 10,131,006 B2Granted
Pneumatic device for a pneumatic saw
AssigneeBasso Industry Corp.
InventorsLiang-Chi Hung, Li-Hsin Chang
Life of this patent
Estimating the term…
Abstract
A pneumatic device includes a cylinder, a buffer member and a piston unit. The cylinder includes a cylinder wall defining an air chamber. The buffer member has a tubular wall that defines a communicating hole. The tubular wall has a length greater than the wall thickness thereof. The piston unit includes a sealing member, and a rod member movably extending through the communicating hole. The rod member has a driven section received within the air chamber and mounted with the sealing member. The piston unit is movable between a restoring position where the driven section is spaced apart from the buffer member, and an impact position where at least one of the driven section and the sealing member is in contact with the buffer member.
Claims9
A pneumatic device adapted to drive movement of a saw blade, comprising:
- a cylinder including a cylinder wall that surrounds an axis and that defines an air chamber therein;
- a buffer member positioned within said air chamber, and having a tubular wall that surrounds the axis to define a communicating hole therein, said tubular wall having a length along the axis that is greater than the wall thickness thereof;
- and
- a piston unit including a sealing member, and a rod member that is movably extends through said communicating hole of said buffer member and that is adapted to be mounted with the saw blade, said rod member having a driven section that is received within said air chamber, said sealing member being mounted to said driven section of said rod member, being co-moveable with said driven section, and being in air-tight contact with an inner surrounding surface of said cylinder wall, said piston unit being able to be driven pneumatically to move between a restoring position where said driven section is spaced apart from said buffer member, and an impact position where at least one of said driven section and said sealing member is in contact with said buffer member;
- wherein said cylinder wall further has a first buffer coupling structure that is formed at said inner surrounding surface thereof, said buffer member further having a second buffer coupling structure that is formed at an outer surrounding surface thereof, and that is engaged to said first buffer coupling structure for positioning said buffer member in said cylinder.
2 more elements
A pneumatic device adapted to drive movement of a saw blade, comprising:
- a cylinder including a cylinder wall that surrounds an axis and that defines an air chamber therein;
- a buffer member positioned within said air chamber, and having a tubular wall that surrounds the axis to define a communicating hole therein, said tubular wall having a length along the axis that is greater than the wall thickness thereof;
- and
- a piston unit including a sealing member, and a rod member that is movably extends through said communicating hole of said buffer member and that is adapted to be mounted with the saw blade, said rod member having a driven section that is received within said air chamber, said sealing member being mounted to said driven section of said rod member, being co-moveable with said driven section, and being in air-tight contact with an inner surrounding surface of said cylinder wall, said piston unit being able to be driven pneumatically to move between a restoring position where said driven section is spaced apart from said buffer member, and an impact position where at least one of said driven section and said sealing member is in contact with said buffer member;
- and
- wherein said buffer member further has an annular rib that is formed on an inner surrounding surface of said tubular wall and that is in air-tight contact with said rod member.
3 more elements
A pneumatic device adapted to drive movement of a saw blade, comprising:
- a cylinder including a cylinder wall that surrounds an axis and that defines an air chamber therein;
- a buffer member positioned within said air chamber, and having a tubular wall that surrounds the axis to define a communicating hole therein, said tubular wall having a length along the axis that is greater than the wall thickness thereof;
- and
- a piston unit including a sealing member, and a rod member that is movably extends through said communicating hole of said buffer member and that is adapted to be mounted with the saw blade, said rod member having a driven section that is received within said air chamber, said sealing member being mounted to said driven section of said rod member, being co-moveable with said driven section, and being in air-tight contact with an inner surrounding surface of said cylinder wall, said piston unit being able to be driven pneumatically to move between a restoring position where said driven section is spaced apart from said buffer member, and an impact position where at least one of said driven section and said sealing member is in contact with said buffer member;
- and
- wherein said tubular wall of said buffer member has a tubular buffer section that is aligned with said driven section of said rod member in the direction of the axis, said piston unit further having an annular groove that is formed in at least one of a side surface of said driven section that faces toward said buffer member and a side surface of said sealing member that faces toward said buffer member, said annular groove of said piston unit receiving a distal end portion of said buffer section of said buffer member when said piston unit is at the impact position.
3 more elements
Dependencies are inferred from the claim text.