GB2174956A

GB2174956A - Sliding and planing table

Info

Publication number: GB2174956A
Application number: GB08611170A
Authority: GB
Inventors: Jack Bufton; Michael Peter Bufton
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-05-09
Filing date: 1986-05-08
Publication date: 1986-11-19
Also published as: GB8611170D0; GB2174956B; GB8511684D0

Abstract

A baseboard (10) has parallel guide rails (16) extending from front to rear and means for securing a portable power planer (15) on its side with the cutting blades facing inboard. A sliding table (17) with clamps (20, 21) for holding a workpiece to be edge-planed thereon may be pushed along the baseboard between the guide rails parallel to the planer blades. Bevelled edges are similarly planed when the plane mountings (12, 13, and 14) are tilted. The table (17) may be replaced in one modification by a turntable with a suction pad uppermost, for gripping a workpiece to be planed circular, and provided with a screw and nut drive (28) which cooperates with turntable-locating means received in a transverse slot in the baseboard. In a second modification timber lengths can be planed after securing to the baseboard guides extending the planer toe and heel plates and platforms to provide stability, and securing an adjustable guide to the drive screw and nut. <IMAGE>

Description

SPECIFICATION Sliding and planing table This invention relates to a sliding and planing table.

Veneered chipboard, for example Contiplas (R.T.M.), is extensively used by the home handyman and others to make occasional and fitted furniture. The sawn edges of boards must be planed to achieve accurate angles, dimension and clean edges free of chipping of the laminate veneer.

Planing such edges calls for a high degree of skill and is very time consuming, the work needing to be constantly removed from the vice and progress checked carefully. Results are very often disappointing for the unskilled. To produce accurate circular shapes by planing is virtually impossible for the homeworker and few attempts are made to carry out projects involving such shapes, for example round sherry tables or coffee tables with rounded corners. Planing lengths of timber to accurate dimensions is also a difficult task needing skill and patience and the amatuer is usually limited to using stock sizes.

According to the present invention there is provided a sliding and planing table on the baseboard of which an electric planer can be mounted and secured on its side lengthways, with its vertical face and blades facing inboard. A sliding table with adjustable clamps is provided on which the board to be planed is pushed along the baseboard parallel to the planer face between guide rails. The adjustable clamps provide means to plane the edges to any angle between 90 and 45 and the planer mountings can be adjusted to present the planer face at any angle from vertical to 45 in order to produce bevels, A turntable with a lever action suction pad theron is provided which can be traversed across the baseboard by means of a screw and nut located in the chassis being driven at 90 to the planer blades.This assembly provides the means to produce circular shapes. The screw and nut also provide the means to carry an adjustable guide plate, and also provided are two guide plates which are secured to the baseboard and extend the toe and heel plates of the planer. A length of timber to be planed is passed between the planar face and the adjustable guide plate on the screw and nut. A platform located by means of, for example, dowel pins is provided and extends from front to rear of the baseboard to provide stability for the length of timber.

Figure 1 shows in perspective the baseboard with the planer secured in the vertical position and the sliding table in position between the guide rails and with its clamps adjusted to edge plane a board at 90#.

Figure 2 shows in perspective the sliding table removed and the turntable located on the drive screw and nut and the two stabilizing supports in position between the guide rails of the baseboard.

Figure 3 shows the turntable and supports located on the drive screw and nut in section.

Figure 4 shows in perspective the sliding table removed and the platform and two planer extension guide plates secured to the baseboard. The adjustable guide plate is also shown fitted to the drive screw and nut.

Figure 5 shows Section A - A of Figure 4.

Figure 6 shows Section B - B of Figure 4.

Figure 7 shows the Plan of the planer mounting cradle used for a Black & Decker 710 Planer.

Figure 8 shows the view of the heel mounting bracket secured to the left short leg of the cradle.

Figure 9 shows the part view of the heel mounting bracket.

Figure 10 shows the view of the toe mounting bracket secured to the right short leg of the cradle.

Referring to the drawing Figure 1 the sliding and planing table has an oblong baseboard (10) with secured thereunder parallel chassis members (11) at or adjacent to each side extending lengthways from front to rear. The baseboard has secured theron at or adjacent to midway along the left side a bracket (12) and mountings (13 & 14) on which a suitable electric planar (15) (not provided) can be mounted and secured on its side lengthways with the toe pointing to the front and the face and blades vertical facing inboard, and in order to plane bevelled edges the mountings have means provided to adjust the angle of the plane to present and secure the face of the planer at any angle from vertical to 45. To provide means of guiding the sliding table (17) from front to rear of the baseboard parallel to the planer face, parallel guide rails (16) extend from front to rear of the baseboard, the right rail at or adjacent to ánd parallel with the right edge and the left rail in close proximity to the bottom edge of the vertical planer face. The sliding table (17) is an oblong board of approximately half the length of the baseboard and of such width as to fit closely and slide between the guide rails, and has secured thereunder two parallel runners (18) extending from front to rear which assist the sliding action and raise the level of the sliding table marginally above the level of the guide rails.The sliding table has provided theron adjustable clamps (19 & 20) in order to hold boards of various widths at any angle across the table from 90 to 45 , the rear clamp (19) pivoting on a fixed pin (21) at or adjacent to the left rear end of the table, and secured at the angle selected by means of a thumbscrew and slide (23). Adjustment of the front clamp (20) along the table is provided by two slides (24) and two thumbscrews (22) with a slot (25) giving means of positioning and securing at the required angle. As the sliding table is moved between the guide rails in the direction shown by the arrow (26) the board to be planed (not shown) held in the clamps is fed into the blades with the planer operating and planing at the required angle takes place.Not shown are clips providing means of gripping two or more boards, so enabling a number of boards to be planed to gether accurately.

In order to plane boards to a circular shape the sliding table (17) is removed as shown in Figure 2.

Extending fully between and at 90 to the guide rails and the planer blades a guide slot (27) is cut through the baseboard. Under the guide slot a screw drive bar (28) is located through both chassis members (11) extending beyond the right perimeter with a handle (29) fitted, and located on the screw a nut (30) as shown in Figure 3 which has a drilled female bearing uppermost. As shown in Figure 3 a cylindrical hollow turntable (31) has a closed flat base with extending thereunder a suitable mating spindle (32) capable of fitting closely through the guide slot and entering into the female bearing in the driven nut, and with the base of the turntable resting on the baseboard. Secured on the open top of the turntable a lever action suction pad (33) provides means of securely holding the board to be planed.When fitted to the driven nut the overall height of the turntable marginally exceeds the height of the guide rails. Two stabilizing supports (34) of similar height are provided and located across the baseboard between the guide rails, one to each side of the turntable. Secure location can be by means of dowels for example.

The two supports have bevelled edges to allow for tilting the planer when planing a circle with a bevel. To carry out circle planing a board cut to an octagon is fixed centrally to the turntable by means of the suction pad and the assembly is fitted to the driven nut and fed by means of the screw bar in the direction shown by the arrow (35) until the high spots contact the planer blades. With the board stabilized on each side by the two supports and the planer operating the board and turntable are turned in a clockwise direction. Repeating the operation will produce a circular board.

In order to plane straight lengths of timber the sliding table (17) is removed and as shown in Figures 4, 5 & 6 two guide plates (50) are secured to the baseboard (10) adjacent to the outer edge of the left rail (16) to form an extension of the toe and heel plates of the planer (15). Two platforms (55) are located for example by dowel pins (57) on to the baseboard extending extending from front to rear but with a centre gap corresponding to the screw and nut guide slot (27). The platforms have secured thereunder adjacent to the inner edge a support rail (56) of similar height to the guide rails (16). The left guide rail supports the outer edge of the platforms. An adjustable guide plate (51) is welded to a spindle (52) and located in the female bush of the driven nut (30).This assembly is secured with the guide plate parallel to the planer face by means of a locating plate (54) welded to the spindle (52) and secured by a screw (53) to the driven nut. Lengths of timber are planed by placing the timber on the platform between the planer face and the adjustable guide plate and feeding the timber past the planer blades, adjusting the guide plate as work progresses using handle provided (29).

The planer mountings shown in Figures 7, 8, 9 & BR< 10 are for mounting a Black & Decker 710 Planer, and modified mountings used for other planers are not shown. Illustrated in Figures 7, 8 & 9 is a cradle (12) in the form of a three sided frame. The left and right short legs are of, say, steel angle with slotted holes (36) in the base used to secure the cradle to the baseboard and on both legs are short upright extensions (37) with identical holes drilled for pivot pins and wing nuts (39) used to secure the planer mountings (13 & 14). On the left leg a longer upright extension (38) with a pivot pin (40) is used to secure the planer at any angle from vertical to 45 The front long leg of the cradle is of flat steel. The toe mounting (13) is a square straight bar shown in Figure 10 with a screw thread drilled (39) adjacent to one end.The toe mounting is pushed into the existing square hole through the nose of the planer and secured to the right leg of the cradle by the wing nut and screw (39) and a locking screw in the existing captive nut in the nose (not shown) secures the mounting to the planer. The heel mounting (14) shown in Figures 8 & BR< 9 is in the form of a steel shoe clipped closely around the heel body and face of the planer and incorporating an extension (45) at the bottom of the shoe and drilled with a screw thread corresponding to the toe mounting and a support bracket (41) and vernier adjustment (42). To minimise obstruction the clips on the heel mounting overlapping the face plate are very narrow strips.

In a similar manner to the toe mounting, the heel mounting clipped to the planeris secured to the left leg of the cradle by a wing nut and screw (39).

When mounted to present a vertical face the support bracket (41) is screwed to the vertical extension (38) and for bevel planing the planer is tilted (43) in the cradle on the pivots (39). The assembled planer, mountings and cradle are secured to the baseboard using the elongated slots (36) with the face of the planer in close contact with the guide rail (16).

Provided but not shown is a spring assisted pendulum action safety guard which cover the blades of the planer and which is secured to the planer by means of a shaped square steel bar located in the upper end of the square hole passing through the nose of the planer.

Claims

1. A sliding and planing table comprising a baseboard, mountings providing means of securing theron a portable power planer, lengthways on its side with the toe pointing forward and its face vertical facing inboard, and parallel to the planer face two guide rails are provided extending from front to rear. A sliding table is provided capable of sliding accurately from front to rear of the baseboard between the parallel guide rails, and has theron clamps capable of securely holding boards to be planed at 90% Accurate edge planing is achieved by sliding the table from front to rear of the baseboard and with the board being planed in contact with the revolving blades, repeating the sequence as necessary.

2. A sliding and planing table as claimed in Claim 1 wherin the sliding table clamps have adjustment provided to enable various widths of boards to be held securely and planed to 90 by operating the sliding table as described in Claim 1.

3. A sliding and planing table as claimed in Claim 1 or Claim 2 wherin the sliding table clamps have adjustment provided to enable various widths of board to be held securely and be planed across to any angle from 90 to 45 by operating the sliding table as described in Claim 1 or Claim 2.

4. A sliding and planing table as claimed in Claim 1 or Claim 2 or Claim 3 wherin the mountings securing the portable power planer have adjustment provided to enable the planer face to be presented and secured at any angle from vertical to 45 in order to produce planed bevelled edges by operating the sliding table as described in Claim 1 or Claim 2 or Claim 3

5. A sliding and planing table as described in any preceeding claims wherin the sliding table is removed and the baseboard has provided and secured thereunder two chassis rails extending from front to rear, a slot cut across the baseboard at 90 to the planer blades extending fully between the guide rails which affords access to a drive screw and nut provided and located in the chassis rails, the driven nut having uppermost a female bush and a screw tapping.The drive screw extends beyond the right perimeter and is provided with an operating handle. A cylindrical hollow turntable is provided with a closed flat base with extending thereunder a spindle to enter the baseboard slot and mate with the female bushing in the nut. The turntable has provided and secured on the open top a lever action suction pad which provides the means to securely hold a laminated board. The turntable assembly located in the female bush with an octagonal laminated board secured centrally provides the means to plane a circular shape when the assembly is rotated fully clockwise and is moved along the drive screw to maintain contact with the revolving vertical planer blades, repeating the sequence until a circle is produced. Also provided are platform rests located between the guide rails, one at each side of the turntable, giving stability to the board being planed.

6. A sliding and planing table as claimed in Claim 5 wherin the mountings securing the portable planer have adjustment provided to enable the planer face to be presented and secured at any angle from vertical to 45 in order to produce planed bevelled edges to laminated boards being planed to a circular shape by operating the turntable as described in Claim 5.

7. A sliding and planing table as described in claim 5 or Claim 6 wherin by securing a rectangular laminated board to the turntable at the centre of a circle at each corner in turn, profiles are produced by operating the turntable as described in Claim 5 or Claim 6 but limiting the clockwise rotation to 90 only and returning to 0 after each rotation.

8. A sliding and planing table as claimed in Claim 5 wherin the sliding table and turntable are removed. Two level platforms are provided and located along the full length of the baseboard with their left edges resting on the guide rails and their right on supports secured thereunder, and with a central gap between the platforms corresponding to the slot giving access to the screw and nut. Provided and secured to the baseboard are two vertical guide plates which function as extensions of the vertical planer heel and toe. An adjustable guide plate is provided secured to a spindle which is entered in the female bush of the drive nut, this assembly held securely with the guide plate parallel to the planer face by means of a locking plate on the spindle held by a screw in the tapping of the nut. The guide plates and planer face form a passage with one adjustable side and planing a length of timber accurately is achieved by pushing the timber along the passage through the revolving planer blades, repeating the sequence as necessary whilst maintaining close contact by adjusting the drive screw and nut.

9. A sliding and planing table substantially as described herein with reference to Figures 1 - 10 of the accompanying drawings.