Traveling saw with a sound protection hood

Details Traveling saw with a sound protection hood Traveling saw with a sound protection hood

1981-09-28

1984-04-03

Schran, Donald R.

Cutting

Interrelated tool actuating means and means to actuate work...

Work clamp

83397, 834712, 83478, 83488, 83544, 83614, 83701, 144252R, B23Q 1108, B23D 4710

Patent

active

044400543

ABSTRACT:
A circular saw having a cantilever beam 12 which is adapted to be lifted and on which a sawing carriage including a saw blade 2 is guided for horizontal movement, comprises a sound protection hood 5 adapted to be lifted together with the cantilever beam 12. At its lower edge the sound protection hood 5 has a flexible crush-proof apron 49 which is made of a sound dampening flexible material and enters into sound-proof engagement with the table top 8 of the circular saw when the cantilever beam 12 with the sound protection hood 5 are lowered into the operating position. Hold down devices 40, 41, 42 mounted on the sound protection hood firmly hold the material 7 to be sawed on the table top 8 during the sawing process by means of strips 55, 72 which are of sound dampening material. The hold down devices are guided in parallel by a parallel guide means including racks and pinions so as to be biased "passively" with respect to the sound protection hood 5 by means of pneumatic cylinders 43. The measures described effectively prevent undesired sound projection, particularly from the noiseful sawing process.

REFERENCES:
patent: 3119602 (1964-01-01), Johnson
patent: 3747457 (1973-08-01), Thompson
patent: 4036093 (1977-07-01), Thorsell
patent: 4054072 (1977-10-01), Jagers
patent: 4214493 (1980-08-01), Elhaus

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