Skid plate for concrete saw
OwnerEdward Chiuminatta, Alan R. Chiuminattainventors
Life of this patent
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Abstract
A removal skid plate for use on a saw for cutting wet concrete. The portion of the skid plate in contact with the concrete has a slot therein through which a rotating cutting blade extends to cut a groove in the concrete. At a leading, cutting edge of the slot, a ceramic insert is placed in the skid plate to inhibit wear adjacent the cutting edge of the blade. The insert is removable and held by a resilient means which can vary the force exerted between the insert and the concrete surface being cut in order to minimize any undesirable markings which the insert might exert on the concrete surface.
Claims43
A skid plate for a saw that is used to cut grooves in concrete with a rotating cutting blade having a predetermined thickness, the skid plate having a leading end, and opposite thereto, a trailing end, with a slot in the skid plate through which the rotating cutting blade can extend, the slot extending from adjacent the leading end toward the trailing end, comprising:
- an aperture at the end of the slot in the skid plate nearest the leading edge;
- an insert made of a wear resistant material, the insert being insertable into the aperture, the insert having a slot therein the location of which corresponds to the slot in the skid plate when the insert is inserted into the aperture so as to provide a continuation of at least a portion of the slot in the skid plate, the insert being positioned in the skid plate so that a cutting edge of the cutting blade passes through the slot in the insert, the slot in the insert having a first closed end and a second end that opens toward and encompasses the cutting edge of the cutting blade, with the slot extending less than the entire length of the blade;
- and
- means for retaining the insert in the aperture as the cutting blade passes through the slot in the insert during operation of the saw.
A skid plate for a saw that is used to cut grooves in concrete with a rotating cutting blade having a predetermined thickness, the skid plate having a leading end, and opposite thereto, a trailing end, with a slot in the skid plate through which the rotating cutting blade can extend, the slot extending from adjacent the leading end toward the trailing end, comprising:
- an aperture at the end of the slot in the skid plate nearest the leading edge;
- an ceramic insert made of a wear resistant material, the insert having an engaging portion configured to fit into and be supported by the aperture in the skid plate, the insert having a retaining portion configured to prevent passage of the insert through the aperture, the insert having a slot therein located so as to coincide with the slot in the skid plate, the slot in the insert being sized to allow passage of the cutting blade through the slot, the insert and aperture being positioned in the skid plate so that a cutting edge of the cutting blade passes through the slot in the insert, the slot in the insert having a first closed end and a second end that opens toward and encompasses the cutting edge of the cutting blade, with the slot extending less than the entire length of the blade;
- and
- means for retaining the insert in the aperture as the cutting blade passes through the slot in the insert during use of the saw in cutting concrete.
An insert for use with a skid plate on a saw having a rotating blade with a cutting edge used to cut concrete, the skid plate having a longitudinal slot therein with an aperture at a leading end of the slot, comprising:
- a wear resistant ceramic insert having an engaging portion configured to correspond to the shape of the aperture in the skid plate;
- a retaining portion attached to the engaging portion, the retaining portion having a shape not corresponding to the shape of the aperture to prevent the insert from passing through the aperture when the engaging portion is placed in the aperture;
- and
- a slot in at least the engaging portion, positioned to corresponding with at least a portion of the slot in the skid
- plate when the engaging portion is inserted into the aperture, the slot in the insert having a first closed end and a second end that opens toward and encompasses the cutting edge of the rotating blade, with the slot extending less than the entire length of the blade.
A skid plate for a saw having a rotating cutting blade with a thickness, the skid plate having a leading end, and opposite thereto, a trailing end, with a slot in the skid plate through which the rotating cutting blade can extend, the slot extending from adjacent the leading end toward the trailing end, comprising:
- an aperture at the end of the slot nearest the leading edge;
- and
- an insert made of a wear resistant material, the insert being insertable into the aperture, the insert having a straight slot with one end opening onto a trailing edge of the insert, the slot being located to communicate with at least a portion of the slot in the skid plate when the insert is in the aperture, the insert being positioned in the skid plate so that the cutting edge of the cutting blade passes through the trailing edge of the slot in the insert, the slot extending along less than the entire length of the blade.
Dependencies are inferred from the claim text.