Woodworking – Work guide – Work held by corner or diagonal work
Patent
1989-06-12
1990-11-20
Bray, W. Donald
Woodworking
Work guide
Work held by corner or diagonal work
33 42, 83444, 83745, 144253R, 144114R, 144129, B27C 112, B27B 3100
Patent
active
049711237
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention is based on an angle stop for a machine tool and, more particularly, to an angle stop for a machine tool having a supporting table and a table carrier which can be securely connected with the housing of the machine tool, the inclination of the supporting table being adjustable with respect to the working plane of the machine tool. Adjustable angle stops are already known primarily for machine tools for wood working. In a known angle stop with two straight-edge lateral guide slots, the latter are penetrated by stationary pins. When adjusting the angle, the contact table moves on a curved path, and, although a minimum gap is maintained at the 0.degree. position, a relatively large gap occurs between the grinding belt and the table edge on the belt side in the extreme position (45.degree.). On the one hand, the guidance function--particularly with small workpieces--is impaired with such a large gap; on the other hand, there is the risk of accident if workpieces are drawn into the gap.
SUMMARY OF THE INVENTION
Accordingly, it is an object of my invention to provide an angle stop for a machine tool in which the gap between the tool and the table edge is kept constantly small along the entire adjusting area of the supporting table. It is also an object of my invention to provide an angle stop for a machine tool in which no fastening or other part of the angle stop projects out over the table plane.
In keeping with these objects and with others which will become apparent hereinafter, the angle stop which includes a supporting table and a table carrier also comprises two angled side parts connected with the supporting table which are provided with guideways, which are in a working connection with guide elements on the table carrier for directing the swiveling movement and which can be clamped against the table carrier. One of the guideways can extend substantially linearly at an acute angle relative to the contact surface of the supporting table and the other can comprise an at least approximately linear portion and a second portion which is curved so that the edge of the supporting table facing the working plane of the machine tool moves on a path extending substantially parallel to the working plane during its angular adjustment. Alternatively, the first guideway can extend into the middle portion of the side plate and begin in an arc facing another lateral edge of the side plate and the other comprises an at least approximately linear portion and a second portion which is curved so that the edge of the supporting table facing the working plane moves on a path which is parallel to the working plane.
Advantageously the guideways are constructed as through-going openings or slots in the side parts. The guide elements can comprise pins. Each side can have a pin which engages in a slot or guideway which can also serve as a clamping element which fixes the supporting table relative to the carrier table.
In contrast, the angle stops, according to the invention, with the characterizing features of the main claims have the advantage that the gap is kept constantly small along the entire adjusting area of the supporting table. Moreover, they have the advantage that no fastening or other part of the angle stop projects out over the table plane of the supporting table or the working plane of the machine tool. The construction also enables an expansion of the adjusting area beyond 45.degree..
Advantageous developments and improvements of the angle stop indicated in the main claim are made possible by means of the measures indicated in the subclaims.
BRIEF DESCRIPTION OF THE DRAWING
Two embodiment examples of the angle stop are shown in the drawing and explained in more detail in the following description. FIG. 1 is a side view of the angle stop 2 mounted on a planing tool;
FIG. 2 is a top view of the angle stop at the 0.degree. position of the supporting table;
FIG. 3 is the lower side of the table carrier; and
FIG. 4 is a side view of a supporting table according to a second
REFERENCES:
patent: 1032278 (1912-07-01), England
patent: 1967791 (1934-07-01), Tantz
patent: 2037286 (1936-04-01), Tautz
patent: 2140322 (1938-12-01), Lonskey
patent: 2579224 (1951-12-01), Boice
patent: 2619998 (1952-12-01), Okamuro
patent: 2857943 (1958-10-01), McEwan et al.
patent: 4607434 (1986-08-01), Francis
Bray W. Donald
Robert & Bosch GmbH
Striker Michael J.
LandOfFree
Angle stop does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Angle stop, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Angle stop will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-449042