DE1883183U - CIRCULAR SAW WITH CUTTING HEIGHT ADJUSTMENT. - Google Patents

Description

P.A. 134 736 * 2/26/62

Oh. Schwarz, Maschinen- und Werkzeugfabrik, 3? Ulda

"Circular saw with cutting height adjustment ' ¹

page 1

Y / at the outset now becomes binary and / or For safety reasons, it is required that the circular saw blades in circular sawing machines are height-adjustable * Bs is also a well-known fact that the best cutting performance is achieved when the outer diameter of the circular saw blade with the surface of the material to be cut (pieces of wood) just cut off. this However, it requires that the cutting height must be adjustable and lockable, and this in particular for safety reasons with construction site circular saws. The employers' liability insurance associations are also increasingly demanding this

On the other hand, especially with construction site circular saws, the design option must be simple and be straightforward, e.g. B. an adjusting spindle switches off because it seizes up and rusts too easily.

The invention now shows a possibility of height adjustment of the circular saw blade, especially on a component circular saw whose saw table is fixed, in an exemplary embodiment that fully meets the requirements outlined above.

In the drawing, the subject of the invention is in one Embodiment shown schematically and that shows

Mg. 1 the subject of the invention, from the side

seen, partly shown in section,

S ¹ Ig ₀ 2 the adjusting device separately drawn schematically in a side view »

3 shows the adjustment device separately, schematically drawn with a cut through the reduction in "Drauf sees« "

As is known, the saw table 2 is arranged on the circular saw frame 1. Within the circular rack 1 is below dee saw table 2 at the circular saws frame 1 a bearing 3 o. The like. Fixedly arranged which pivotally supports a U-shaped Eahmen 4 in sighting on the stand of the operator * in this Eahmen 4, the saw blade 5 mounted "In the storage 3 is also mounted on a swivel arm 6 of the drive motor 7, which via a V-belt S o. The like drives the saw blade 5 and this is tensioned by an adjusting screw 9 or the like. This whole saw blade bearing and the associated drive is therefore as or within the TJ-shaped frame 4 and stored in the one-sided bearing 3 »in which the whole thing can be pivoted in a height-adjustable manner.

- 3 -

The free end 4 * of the U-shaped track 4 extends almost over the entire width of the seat and is at this free end 4 ', preferably in the middle, a handle 12 firmly arranged, welded in two dimensions and guided through a Soppel segment arc 13 o * the like of two juxtaposed U-Profilj ^ foogeii 13 * and 13 "o _a like. constituted, the fixedly arranged in the frame 1 shall find Instead of this dual segment arc also possible for two adjacently arranged angle iron, which together in cross-section a U, arranged his or just a U-profile, which is slotted for the Ferstellbereioh or the passage of the handle * Furthermore, it is also possible to use only a curved iron or the like in the radius around the storage 3 as a segment arch 13, which is also should be slotted accordingly in the adjustment area · In the case of the aforementioned or similar designs of the segment arch 13, the handle 12, which is attached to the frame 4 and 4 ^{1, is} fixed but it is also possible to guide the handle 12 laterally next to the segment arch 13 and to clamp it step by step or steplessly in the intended adjustment range with the positioning device or a similar device described below and thus to clamp the frame 4 of the Determine saw blade 5 in the desired height. The position of the handle 12 in the illustrated case between the segment arch 13 ^r and 13 "requires that a clamping plate 14 is fixedly arranged on the handle 12, which slides on the segment arch 13 when the height is adjusted and with this by tightening the screw ο« the like « is curious «Appropriately, the contract

Sehraubung 15 on the inside a clamping arch 16 on which 15 wooden blocks on both sides of the robbery are firmly attached, which are in the U-profiles 13 'and 13 " intervene and get stuck in it as soon as the screw connection 15 is tightened »

This ensures a safe height adjustment of the handle 12 and thus of the saw blade 5, which is quick to use and it should be noted that the wooden blocks 17 can be exchanged at any time if necessary are*

A millimeter scale can be arranged on the segment arc 13, according to which the örad of the height adjustment can be used can adjust without having to measure the saw blade «

Claims (3)

RA. 13A 736 * 02.26.62 Expectations 1 «circular saw, in particular construction site circular saw, characterized in that a U-shaped frame (4 · t ^ *) Which carries the saw bearing with the circular saw blade (5) above the frame (4.4V) and below the frame via the swivel arm (6) the drive motor (7) on one side and on the other side via a locking and locking device - and can be jammed. 2. Arrangement according to claim 1 »da ά α rc Ii characterized in that at clem TJ- £ öraiigen frame end (4 ^? ) A handle 0-2) is fixedly arranged, the two side by side in the ö-estell (1) arranged segment ( 13 ', 13 ¹ O o »like · dur-cMriiigt and this is determined via a fixedly disposed on. the handle (12) the clamping plate (14) by means of the screw (15). 3. Arrangement according to claim 1 and 2, characterized marked that the screw connection (15) on the inside of the segment arch (13 *, 13 ") carries a tension bow (16), by means of which the to wooden blocks (17) attached to it in or on the segment arches.