EP0136080A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A drill jig for dowel joints
Assignee: Black and Decker Inc
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Filing: 1984-08-24
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Granted: —
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Expires: 2004-08-24
Abstract
Abstract A drill jig for preparing dowel joints between two workpieces (50, 52) to be interconnected end-face to side-face, has a guide hole (5) for drilling into the end face of workpiece (50) arranged parallel to bearing surface (7) against which workpiece (50) abuts and a guide bore (8) for drilling into the side face of workpiece (52) arranged parallel to a positioning zone (10) against which workpiece (52) abuts. The longitudinal axes of the guide hole (5) and guide bore (8) define a right angle. In each embodiment the bearing surface (7) and positioning zone (10) lie completely inside or completely outside that right angle.
Inventors
- 👤 Dietrich Marx
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 14:25
CPC Classifications
B; B23; B23B; B23B47/00; B23B47/28; B23B47/287; B23B47/288
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
234 words
A drill jig for preparing dowel joints between two workpieces to be interconnected end-face to side-face, comprising a jig member (1, 101, 201) having a bearing surface (7, 107, 127) for the workpiece (50, 150, 250) which is to be drilled at its end face, at least one guide hole (5, 105. 205) extending parallel to the bearing surface (7, 107, 207), a positioning zone (10, 110, 210) extending perpendicularly to the bearing surface (7, 107, 207) and against which positioning zone (10, 110, 210) abuts in use the end face of the workpiece (52, 152, 252) which is to be drilled on its side face, at least one guide bore (8, 108, 208) extending parallel with the positioning zone (10, 110, 210), the longitudinal axes of said guide base (8, 108, 128) and said guide hole (7, 107, 207) extending perpendicular to one another in the same plane, the distance between said axis of said guide bore (8, 108, 208) and said positioning zone (10, 110, 210) being equal to the distance between said axis of said guide hole (5, 105, 205) and said bearing surface (7, 107, 207), characterized in that the bearing surface (7, 107, 207) and the positioning zone (10, 110, 210) lie completely inside or completely outside the right angle enclosed by said longitudinal axes of the guide hole (5, 105, 205) and the guide bore (8, 108, 128).
Claim 2
Dependent Claim
234 words
A drill jig for preparing dowel joints between two workpieces to be interconnected end-face to side-face, comprising a jig member (1, 101, 201) having a bearing surface (7, 107, 127) for the workpiece (50, 150, 250) which is to be drilled at its end face, at least one guide hole (5, 105. 205) extending parallel to the bearing surface (7, 107, 207), a positioning zone (10, 110, 210) extending perpendicularly to the bearing surface (7, 107, 207) and against which positioning zone (10, 110, 210) abuts in use the end face of the workpiece (52, 152, 252) which is to be drilled on its side face, at least one guide bore (8, 108, 208) extending parallel with the positioning zone (10, 110, 210), the longitudinal axes of said guide base (8, 108, 128) and said guide hole (7, 107, 207) extending perpendicular to one another in the same plane, the distance between said axis of said guide bore (8, 108, 208) and said positioning zone (10, 110, 210) being equal to the distance between said axis of said guide hole (5, 105, 205) and said bearing surface (7, 107, 207), characterized in that the bearing surface (7, 107, 207) and the positioning zone (10, 110, 210) lie completely inside or completely outside the right angle enclosed by said longitudinal axes of the guide hole (5, 105, 205) and the guide bore (8, 108, 128).
Claim 3
Dependent Claim
107 words
A drill jig as claimed in Claim 1, wherein the positioning zone (10, 110) and the bearing surface (7, 107) lie completely inside the right angle enclosed by the longitudinal axes of the guide hole (5, 105) and the guide bore (8, 108, 208) and wherein said guide hole (5, 105) extends through an inner surface at right angles to said bearing surface (7, 107), said bearing surface (7; 107) lies between said inner surface and the positioning zone (10; 110), and the positioning zone (10; 110) terminates at that surface of the jig member (1; 101) through which the guide bore (8; 108, 128; 138) extends.
Claim 4
Dependent Claim
91 words
A drill jig as claimed in Claim 1, wherein the positioning zone (210) and the bearing surface (207) lie completely outside the right angle enclosed by the longitudinal axes of the guide hole (205) and the guide bore (208), and wherein said guide hole (205) extends through an inner surface at right angles to said bearing surface (207), and the positioning zone (210) is formed by said inner surface, and the bearing surface (207) is formed by that surface of the jig member (201) through which the guide bore (208) extends.
Claim 5
Dependent Claim
56 words
A drill jig as claimed in Claim 3, wherein stops (236) are disposed outside the zone of the guide bore (208) and adjacent that surface of the jig member (201) through which the guide bore (208) extends, and said stops (236) extend to beyond the side of the guide bore (208) remote from said inner surface.
Claim 6
Dependent Claim
70 words
A drill jig as claimed in any one of Claims 1 to 4, wherein an arm (4) of the jig member is arranged opposite a zone (3) of the jig member, said zone (3) defining said at least one guide bore (8), and a clamping screw (14, 15, 16) is arranged with its clamping end (16) extending out of the arm (4) on the side adjacent the guide bore (8).
Claim 7
Dependent Claim
153 words
A drill jig as claimed in any one of Claims 1 to 5, wherein a flat outer side (11; 211) of the jig member (1; 201) is parallel with the positioning zone (10, 210) and extends at right angles to the longitudinal axis of said at least one guide hole (5; 205), and a pin-receiving bore (12; 212) is provided in the outside of that zone of the jig member (1; 201) which has at least one guide bore (8; 208), said pin-receiving bore (12; 212) extending parallel with the guide bore (8; 208) with its longitudinal axis lying in the plane of the longitudinal axes of guide hole (5; 205) and guide bore (8; 208), the distance of said pin-receiving bore (12, 212) from the outer side (11; 211) of the jig member (1; 201) is equal to the distance between the bearing surface (7; 207) and the guide hole (5; 205).
Claim 8
Dependent Claim
46 words
A drill jig as claimed in Claim 6, further comprising a pin (13; 213) for insertion in the pin-receiving bore (12; 212), wherein said pin (13, 213) has a head which has a diameter only slightly smaller than the diameter of the guide hole (5; 205).
Claim 9
Dependent Claim
218 words
A drill jig as claimed in any one of Claims 1 to 5, wherein a flat outer side (111) of the jig member (101) is parallel with the positioning zone (110) and extends at right angles to the longitudinal axis of said at least one guide hole (105, 125, 135) a zone (103) of the jig member (101) extending normally of said guide bore (108, 128, 138), at least one pin-receiving slot (130, 132, 134) having a semi-circular slot bottom and being located in the outside of said zone (103) ' said pin-receiving slot (130, 132, 134) having a longitudinal axis which extends through the centre (131, 132, 134) of the semi-circle of the slot bottom and parallel with the longitudinal axis of the guide bore (108; 128; 138), the said longitudinal axis of said slot (130, 132, 134) lying in the plane of the longitudinal axes of guide hole (105; 125; 135) and the guide bore (108; 128; 138), the distance of said slot (130, 132, 134) from the outer side (111) of the jig member (101) being equal to the distance between the bearing surface (107) and the guide hole (105; 125; 135), the radius of said semicircle slot bottom being equal to or slightly greater than the radius of the guide hole (105; 125; 135).
References Cited (Backward Citations)
DE2750869A1
Cited
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