US3293954A - Multiple location boring jig - Google Patents

Description

27, 1966 F. J. RUSSELL ETAL 3,293,954

MULTIPLE LOCATION BORING JIG Original Filed March 8, 1963 1N VENTORS F250 J. Russs; L PpUL (1 xfioc co United States Patent 3,293,954 MULTIPLE LOCATIUN BORING JIG Fred .1. Russell, 8635 Otis St., Southgate, Calif. 90280,

and Paul (Iiroceo, Bellflower, Caiif.; said Cirocco assignor to said Russell Continuation of application Ser. No. 263,794, Mar. 8, 1963, now Patent No. 3,212,366, dated Oct. 19, 1965. This application June 28, 1965, Ser. No. 467,310

1 Claim. (Cl. 77-62) This is a continuation of copending application Serial No. 263,794, filed March 8, 1963, and now Patent No. 3,212,366.

The invention relates to a device useful in preparing for the installation of a door lock on a door. More particularly, the invention has reference to jigs in the form of a clamp which can be attached to the door and properly located with respect to the edge of the door, whereby to precisely locate one or more holes, to be made by a conventional drill, within which parts of the door lock are ultimately located.

Door locks of the commonly acceptable kind have been constructed in such fashion that they are located in a door in holes which can be made by drilling for reception of the parts of the lock. The mounting of door locks in this fashion results in an appreciable saving of workmans time; but even by the employment of this improved technique, there is still time lost which could be saved in properly locating the hole-s on a door at some selected location which may differ from one door to another. It is frequently the practice to alter the backset depending upon some particular style of lock which is to be installed, the backset being the distance from the edge of the door to the side hole center where the door knob will be located.

Further still, when work is to be done upon doors having a fine finish, such as the slab doors and other type doors currently popular, it is extremely important to locate the hole which is to be drilled with a high degree of precision and also to make certain that there will be no splintering nor resulting ragged edge on either face of the door resulting from the drilling or boring operation. The locating, however, should be quick, easy, and certain, and it becomes desirable to make use of a location boring jig of such simplicity that it readily can be handled by workmen who may perhaps not be possessed of the highest degree of skill or who even, though skillful, may be under pressure of time.

It is therefore among the objects of the invention to provide a new and improved boring jig which is adjustable for locating a side hole in a door at one of several locations with relation to the edge of the door.

Another object of the invention is to provide a new and improved multiple location boring jig for locating a side hole in a door in relation to the edge of the door, the adjustable parts of which can be withdrawn and replaced in different locations by simple and easy means and which also may be entirely removed and still carried by the device when the device is being used in the basic setting for which no adjustable. parts are required.

Still another object of the invention is to provide a new and improved multiple location boring jig wherein a locator adapted for engagement with the edge of a door may "be constructed of nothing more than suitably placed apertures in the jig at alternate locations into which an appropriate projection may be inserted and temporarily anchored in place at the selected set-ting.

With these and other objects in view, the invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter set forth, pointed out in the appended claim and illustrated in the accompanying drawings.

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In the drawings:

FIGURE 1 is a side elevational view of the jig shown in position attached to a door at one of its settings.

FIGURE 2 is a plan view of the device of FIGURE 1 partially broken away.

FIGURE 3 is a right end elevational view of the device in the position shown in FIGURE 1, but with the clamping knob removed.

FIGURE 4 is a partial side elevational view showing the device in a position of adjustment different from FIGURE 1.

FIGURE 5 is a side perspective view of the locator assembly which is used with the device.

In an embodiment of the invention chosen for the purpose of illustration, the device is shown as one consisting principally of left and right side plates 10 and 11 respectively provided with a clamping means indicated generally by the reference character 12 for mounting what is here identified as a multiple location boring jig upon a door 13. For purpose of description, the door 13 will be assumed as having a face 14 engaged by the left side plate 10 and a face 15 engaged by the right side plate 11. An edge 16, which may or may not be a beveled edge of the door, is the free edge of the door which engages the customary door stop (not shown).

For clamping the left side plate 10 and right side plate 11 fast to the door 13, the clamping means 12 includes a block 17 which is engaged by a shaft 18. A mid-portion of the shaft 18 is journaled in the block 17 so as to rotate freely in the block 17 but so that it cannot shift endwise with relation to the block 17. One end of the shaft 18 is provided with right-hand threads 20 and the other end is provided with left-hand threads 21. The threads 20 and 21 are received in appropriately threaded bores in the respective left and right side plates 10 and 11, so that when the shaft 18 is rotated by manipulation of a handle 22 rotated in one direction, the side plates 10 and 11 will move simultaneously toward each other or, on the contrary, will move simultaneously away from each other when the handle 22 is rotated in the opposite direction. Constructed in this fashion, the side plates 10 and 11 will always be adjusted at equal distances from the block 17.

To further guide manipulation of the side plates 10 and 11, there is provided a guide shaft 23 at the bot-tom of the block 17 which rides in a cutout 24 in the left side plate 10 and in a similar cutout 25 in the right side plate 11. An adjusting shaft 26 has a threaded engagement with the adjacent end of the left side plate 10 and is provided with -a lock nut 27. The adjusting shaft 26 can be moved in or out depending upon the thickness of the door 13 to which the apparatus is to be attached and there locked in place, so that when the clamping means 12 is manipulated, it will enjoy a degree of lever action about the free end of the adjusting shaft 26 when the handle 22 is manipulated to screw the shaft 18 into its clamping adjustment.

Buttons 28 on the inside face 29 of the block 17 are adapted to engage the edge 16 of the door 13 in one position of the boring jig on the door, namely, the position for which it is designed when the special adjusting feature is not being employed. Holes 32 and 33 in axial align ment as shown respectively in the side plates 10 and 11, provide one pair of side hole drill guide bores. Holes 34 and 35 respectively on the left side and right side plates 10 and 11 form the second pair of side hole drill guide bores. It is also advantageous to provide a liner 36 to form the hole 32, for example, the liner being adapted to fit an aperture 37 in the left side plate 10 and having a flange 38 overlying the outside face of the left side plate 10 in a suitable recess 39. The liner 36 is shown attached to the left side plate by means of screws 40.

A similar liner 41 is mounted in the same fashion for the purpose of providing the hole 34. It is also good practice to provide a hole 30 to serve as an edge hole guide bore for a drill which makes a hole entering the edge 16 to accommodate a latch bolt casing (not shown).

To adjust the device at different locations on the door 13 with respect to the edge 16, use is made of a locator assembly indicated generally by the reference character 45 and shown in perspective view in FIGURE 5. The locator assembly consists of a bracket 46 having an upper arm 47 and a lower arm 48. On the upper arm is a shaft 49 anchored to the end of the arm 47 in a collar 50, the shaft being provided with a ring 51 more or less midway between opposite ends of the shaft 49. A similar shaft 52 is mounted in the arm 48 in a similar fashion by employment of a collar 53. This shaft 52 also has a ring 54 substantially like the ring 51 and located substantially midway between opposite ends of the shaft 52. A screw 55 is journaled so as to freely rotate in the bracket 46 at the junction of the arms 47 and 48 and is provided with a threaded end 56.

In the left side plate 10 there is provided a pair of respectively upper and lower large holes 57 and 58. In the right side plate is a similar pair of respectively upper and lower small holes. The upper small hole 59 is shown in axial alignment with the large hole 57. A similar small hole (not shown) in the right side plate is in axial alignment with the large hole 58. There is also a second pair of respectively upper and lower large holes 61 and 62 in the left side plate 10. Here again there is a small hole 63 in axial alignment with the large hole 61 and a similar small hole (not shown) in axial alignment with the large hole 62. Intermediate the two pairs of holes and on the left side plate 10 is a threaded Opening 64.

Both holes 32 and 34, for example, which are adapted to receive a drill, can be located at a distance from the edge 16 of the door 13 by employment of the locator assembly 45 in either of the pairs of holes 57, 58, or 61, 62, etc., which are adapted to receive the locator assembly 45. There are, of course, two different locations for each of the holes 32, 34 wherein they can be located de pending upon the locator assembly 45 adjustment. It also is true that the holes 32, 34, in the alternative, can be located by use of the buttons 28.

On the assumption that the hole 32 and its counterpart hole 33 are the subject of adjustment, let it be assumed that the locator assembly 45 is mounted upon the device as shown in FIGURES 1 and 2. In this instance, the shaft 49 is inserted in the large hole 57, and the shaft 52 is inserted in the large hole 58. These holes are large enough that the rings 51, 54 can pass through the holes 57, 58. The shafts 49, 52 are extended through the holes 57, 58 until the collar 50 is centered in the large hole 57, and the collar 53 is centered in the large hole 58. At the same time, the free end of the shaft 49 will center in the small hole 59, and the end of the shaft 52 will center in the other small hole (not shown). While the shafts 49, 52 are being inserted as shown, the threaded ends 56 of the screw 55 is threadedly engaged in the threaded opening 64, and the locator assembly in this way fastens securely to the left side plate 10.

The device then can be applied to the door 13 and moved toward the edge 16 of the door 13 until the rings 51, 54 engage the edge 16. The plates 10 and 11 are then fastened at a proper elevation by rotating the handle 22, thereby to clamp the plates 10 and 11 to the respective faces 14 and of the door 13. The device is then ready for use by having the operator move a drill through the appropriate hole 32, thus drilling a hole through the door 13 until the drill emerges through the hole 33 or by having the operator move a drill through the appropriate hole 34, thus drilling a hole through the door 13 until the drill emerges through the hole 35.

When a different adjustment is desired, the locator assembly 45 may make use of the large holes 61 and 62 and corresponding small holes. This is accomplished merely by disengaging the screw 55, reversing the locator assembly so that shaft 52 is inserted into the upper large hole 61, and shaft 49 is inserted into the lower large hole 62. The shafts 52, 49 are extended through and into the right vside plate 11, the shaft 52 entering the small hole 63 and the shaft 49 entering the other small hole (not shown). Again, in this position, the threaded end 56 of the screw 55 enters the same threaded opening 64 to anchor-the locator assembly 45 in its new position. In the same manner, the device is brought into engagement with the door 13 until rings 51 and 54 engage the edge 16, in this way locating both of the holes 32, 34, for example, at different distances with respect to the edge 16.

Should it be desired to employ the device in the original condition without employment in any way whatsoever of the locator assembly 45, the locator assembly 45 can still be carried on the device so as not to be misplaced. To accomplish this, there are provided large holes 65 and 66 in the left side plate 10 to accommodate respectively the shafts 49 and 52 of the locator assembly 45. Similar small holes (not shown) are provided in the right side plate 11. When the shafts 49, 52 are inserted into the holes 65, 66, etc., the locator assembly 45 can be anchored in place 'by engagement of the threaded end 56 of the screw 55 in an appropriately threaded opening 67 provided for its reception. With the locator assembly 45 thus carried by the device, the plates 10 and 11 under control of the clamping means 12 can be fastened to the door 13 without being interfered with by the locator assembly 45, even though carried by the plates 10 and 11.

It will have become apparent from the foregoing description that a relatively large number of adjustments of the device is possible for the purpose of locating a transverse hole in a door for reception of appropriate door lock, very simple means being employed which is incorporated in the device.

While the invention has herein been shown and described in what is conceived to be the most practical and preferred embodiment, it is recognized that departures may be made therefrom within the scope of the invention which is not to be limited to the details disclosed herein but is to be accorded the full scope of the claim so as to embrace any and all equivalent devices.

Having described the invention, what is claimed as new in support of letters Patent is:

A boring jig for guiding a side hole drill in the making of a side hole through a door at a selected distance from an edge of the door and for guiding an edge hole drill in the making of a hole in the edge of said door, said boring jig comprising opposite side plates adapted to engage opposite sides of the door, at least one of said plates having a side hole drill guide therethrough, a clamping mechanism attached to respectively adjacent ends of said plates and including a positioning block having a drill guide hole adapted to guide said edge hole drill, and a locator assembly and means for selectively removably mounting said locator assembly in a first position on at least one of said plates or in a second position on at least one of said plates, said locator assembly when mounted in either of said positions being closer to said edge of the door than said positioning block and adapted thereby to locate said side hole drill guide at a first location or at a second location relative to said edge of said door.

FRANC S S. HUSAR, Primary Examiner.

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