BRIEF DESCRIPTION OF THE DRAWINGS
The invention, as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying drawings, wherein:
FIG. 1 is a perspective view of one embodiment of the present invention;
FIG. 2 is a partial cross-sectional view of the aforesaid embodiment of the present invention;
FIG. 3 is a schematic view showing a status of use of the aforesaid embodiment;
FIG. 4 is another schematic view showing a status of use of the aforesaid embodiment;
FIG. 5 is yet another schematic view showing a status of use of the aforesaid embodiment;
FIG. 6 is perspective view of another embodiment of the present invention;
FIG. 7 depicts the bottom jig accord to the second embodiment;
FIG. 8 is a partial cross sectional view of the second embodiment;
FIG. 9 is a schematic view showing a status of use of the second embodiment;
FIG. 10
a is a schematic view showing drilling operation proceeded with a conventional inclined-hole drilling jig;
FIG. 10
b is another schematic view showing drilling operation proceeded with a conventional inclined-hole drilling jig;
FIG. 10
c is a further schematic view showing drilling operation proceeded with a conventional inclined-hole drilling jig; and
FIG. 10
d is a yet further schematic view showing drilling operation proceeded with a conventional inclined-hole drilling jig.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Please refer to FIGS. 1 to 8 for preferred embodiments of the present invention. It is to be noted that the recited embodiments are for the purpose of illustration and are not intended to limit the present invention with the discussed structure.
According to one embodiment of the present invention shown in FIG.1 and FIG. 2, the disclosed inclined-hole drilling jig primarily comprises a frame 10, at least one guide seat 20 (in the figures, shown as dual-channel guide seats) assembled thereon, and a workpiece positioner 30; wherein, the guide seats 20 each have plural inclined guide channels 21, 22 to accommodate and orient a drill 40 and the inlet ends 23 of the channels 21, 22 appear at the top surface 201 of the guide seat 20 while the outlet ends 24 thereof appear at one sidewall 202 of the guide seat 20. The present invention is characterized by at least one first inclined guide channel 21 and one second inclined guide channel 22 of the guide seats 20 with diverse inclinations, whereby, the guide seats 20 provide options for at least two diverse drilling inclinations to cater to users' various needs.
Further, a concave chip groove 25 can be provided on the sidewall 202 of the guide seat 20 corresponding to the outlet ends 24 of the inclined guide channels 21, 22.
Also, the inclined guide channels 21, 22 of the guide seat 20 may each contain a liner tube 50 assembled therein to provide a rigid and wear-resisting drill guide channel.
Additionally, the workpiece positioner 30 may be a clamping seat. According to this embodiment, the workpiece positioner 30 is composed of a lever 31, a crank 32, an extension rod 33 and a pressing plate 34.
Moreover, the guide seats 20 assembled on the frame 10 are adjustable to be relatively close or distant. According to the embodiment, the two dual-channel guide seats 20 are parallel and assembled on a transverse guide rod 26 at one end of the frame 10 whereby the dual-channel guide seats 20 can slide along the transverse guide rod 26 to obtain a desired interval and then be fixed with a screwed position knob 27.
Now referring to FIG. 3, when a drilling jig 1 is implemented for inclined-hole drilling operation, an objective workpiece 60 can be placed at one side of the guide seats 20 and fixed by the pressing plate 34; afterward, a drill 40 passing the inclined guide channel 21 or 22 through the route from the inlet end 23 at the top surface 201 of the guide seats 20 to the outlet end 24 on the sidewall 202 of the guide seats 20 drills through the workpiece 60 by the guided inclination. As drilling chips B are produced during the drilling operation, the chip groove 25 arranged on the sidewall 202 of the guide seats 20 allows the chips 41 to be removed easily. Since the present invention provides at least the first and second guide channels 21, 22 on the guide seats 20, it permits users to drill on workpieces 60, 601 with diverse thickness (comparing FIG. 3 with FIG. 4) and obtain the optimum resultant exit points of the drilling without changing the guide seats. Thus, the disclosed subject matter facilitates convenient and efficient drilling operation.
In FIG. 5, when the disclosed matter is used to assist in a drilling operation, it is possible to preset a pedestal 11 on the frame 10 to lift the workpiece 60 for adjustment of the exit point of the drill 40 to a desired position.
As FIGS. 6 and 7 illustrate another embodiment of the present invention, the drilling jig 1A comprises merely a frame 10A and a guide seat 20 thereon but without the aforesaid workpiece positioner 30; wherein the frame 10A can be a simple L-shaped frame that includes a sliding groove 12 on the bottom thereof and each guide seat 20 can be fastened to the frame 10A by means of a fastening stud 28. In the particular embodiment, one of the studs 28 is slidable along the sliding groove 12 so that the guide seats 20 can be spaced according to the desired positions of inclined holes to be made on the objective workpiece 60A. Thereby, as shown in FIGS. 8 and 9, an existing fixture 70 can be used to fix the frame 10A as well as the guide seat 20 with an objective workpiece 60A and the drilling operation can proceed as discussed above.
As the conventional drilling jig has merely a single inclined guide channel on the seat and cannot fit various thicknesses of workpieces, an alternative seat equipped with a guide channel in a different inclination is necessary to avoid drilling offset. Thus, such conventional drilling jig is handicapped by inconvenience of use and uneconomic cost of manufacture.
Thereagainst, the guide seat 20 of the present invention is of the novel design of being equipped with at least two inclined guide channels 21, 22 with diverse inclinations to provide at least two options for drilling inclination and satisfies users' diverse demands to accomplish the advancement of practicality.
The novel advantages presented by the present invention are described as follows:
1. Because the guide seat 20 has a concave chip groove 25 on the sidewall thereof around the outlet end 24 of the inclined guide channels 21, 22, it facilitates easy drilling chip removal.
2. Since each inclined guide channel 21, 22 of the guide seat 20 contains a rigid liner tube 50 inside, it enhances the structure and introduces soundness as well as durability for the guide channels.
Patent Application
20080075546
