JPS626481B2 - - Google Patents

Description

[Detailed Description of the Invention] Conventionally, there have been simple jigs for cutting into the side panels of wooden stairs in two-story houses when inserting treads into the side panels, but none of them are perfect.
The drawback is that the work is time-consuming and requires a great deal of effort and time, making workers feel extremely inconvenienced.

The present invention is directed to a jig for machining side panels of stairs, which eliminates these drawbacks and allows for easy and accurate incision machining before attaching the side panels.

Below, the configuration of the present invention will be explained with reference to the drawings.
As shown in Figure 1, the base plate 2 is a rectangular flat plate with an appropriate thickness and has a semicircular outer periphery 1 on its upper horizontal side. A long hole 4 in the shape of a semi-circular arc is drilled around the screw hole 3 for mounting the base column provided on the line Fixing screw holes 5, 5... are drilled, and the lowest screw hole 5 is
A rectangular square hole 6 with the center line XX as the center line in the longitudinal direction is provided below the base plate 2 on both sides.
In the direction perpendicular to the center line XX for each of the upper and lower parts,
and screw holes 7, 7, for mounting the backing plate spaced at appropriate intervals.
7, 7, 7, 7, etc., and mark the center line XX indicating lines 8, 8' on the base plate 2 above and below the upper and lower sides of the square punching hole 6, and A scale 9 parallel to the center line XX above the square hole 6 on the surface of 2
Then, scales 10, 10 and 10, 10 in a direction perpendicular to the center line XX are fixed flush to the upper and lower parts of the left and right sides of the square punching hole 6, thereby forming a turning plate 11.

From FIGS. 2 to 4, scales 13, 13 are provided flush in the longitudinal direction on the left and right sides of the surface of a prism 12 of an appropriate length, a shaft hole 14 is bored in the center, and the pivot plate is provided on the left and right sides of the scales 13, 13. 11 base column mounting screw hole 3 center,
Screw holes 15, 15 for fixing the rotating plate are provided at a position corresponding to the center of the elongated hole 4, and a mounting rod for clamping is provided at a suitable position on the outside of each of the screw holes 15, 15 at a position symmetrical to the shaft hole 14. Drilling screw holes 16, 16,
The vertical wall portion 2 of the L-shaped frame 19 is attached to the base column 18 in which screw holes 17, 17, 17', 17' for fixing the fixing metal fittings are bored on the left and right sides of the center of the side surface of the square column 12 and on the back side.
Flange parts 21, 2 perpendicular to the upper left and right sides of 0
1, and bolt holes 22, 22 corresponding to the fixing fitting fixing screw holes 17', 17' are provided in the flange portion.
Also, the fixing fittings 17, 1 are attached to the upper end of the wall portion 20.
Bolt holes 22', 22' corresponding to 7 are bored, and a screw 25 having a knob 24 screwed into the tip of the horizontal wall 23 in a right angle direction is provided, and the screw 25 is rotatably attached to the tip. The bolt holes 22, 22, 22', 2 of the fixing fitting 27 provided with the pressing plate 26 of
2' to the screw holes 17, 17, 17' for fixing the fixing metal fittings,
17' and bolts 28, 28, 28', 2
8' to form a base column body 29 with fixing fittings.

From FIG. 5, the positioning plate 32 is a T-shaped flat plate with an appropriate thickness and has a vertically long hole 31 bored in the middle of the leg plate 30.
is fixed with a bolt through the elongated hole 31 to one of the positioning plate fixing screw holes 5, 5... provided in the rotating plate 11, and by loosening the bolt, it can be slid freely on the upper surface of the rotating plate 11. ing.

From FIG. 6, the vertically long rectangular right and left abutment plates 33, 33 made of flat plates of appropriate thickness correspond to the upper and lower horizontal lengths of the abutment plates 7, 7, . Holes 34, 34... are bored.

As shown in FIGS. 7 and 8, a long hole 36 in the longitudinal direction is bored in one end of a rectangular flat plate 35 with an appropriate thickness.
The other end is bent in a right angle direction to form a flange part 37, and a nut-shaped screw metal fitting 39 is glued to the inner surface of the flange part 37 with the screw hole 38 facing vertically, and the head part is shaped like a bolt with a knob part 40. Tightening screw 41
is screwed in from the outside, and a rotatable press plate 42 is fitted to the tip thereof to form a clamping mounting rod 43.

The present invention is made up of the above-mentioned members, and as shown in FIGS.
The surface of the square column 12 [the surface on which the scales 13, 13 are provided] is brought into contact with the shaft hole 14 of the square column 12 so that the screw hole 3 for attaching the base column provided in the turning plate 11 is aligned, and the shaft hole 14 is inserted from below. The base column body 29 with fixing fittings is rotatably attached to the rotating plate 11 by screwing the shaft bolt 44 which passes through the screw hole 3 into the screw hole 3, and
Due to the rotation of the base column 29, the elongated hole 4 of the rotating plate 11
Screw hole 1 for fixing the rotating plate provided in the square column 12 facing the
5, 15 through the elongated hole 4 and screw together the tightening bolt 45 to connect the rotating plate 11 and the base column body 2 with fixing metal fittings.
Fix 9.

On the left and right surfaces of the rotating plate 11, there are long holes 34, 34 in the upper and lower parts of the left and right contact plates 33, 33, respectively, and screw holes 7, 7, 7, .
7, 7, 7......, and a mounting bolt 4 is inserted into each of the elongated holes 34, 34...
6, 46... and each bolt 46, 46...
The threaded end of the plate is connected to the mounting plate mounting threaded portion 7, 7...
The rotating plate 11 and the contact plates 33, 33 are fixed by tightening the bolts, and by loosening the bolts, the contact plates 33, 33 can be slid from side to side.

A positioning plate 3 is provided on the center upper surface of the rotating plate 11.
2 with the leg plate 30 facing upward and the elongated hole 34 facing the rotating plate 1.
1, and screw the fixing bolt 47 through the elongated hole 34 into one of the positioning plate fixing screw holes 5, 5... and tighten. The positioning plate 32 is fixed to the rotating plate 11, and by loosening it, the positioning plate 32 can be moved up and down.

The clamping mounting rod 43 is fixed with the fastening bolt 48 through the elongated hole 36 into either of the clamping mounting rod fixing screw holes 17, 17 provided in the graduated base column 18 with the flange portion 37 facing downward. 4
By loosening 8, the clamping mounting rod 43 is attached movably in the longitudinal direction of the elongated hole 36,
The above-mentioned rotating plate 18, base column body 29 with fixing metal fittings consisting of base column body 18 with scale and fixing metal fittings 27, positioning plate 3
2. The mounting plates 33, 33 and the clamping mounting rod 43 are combined to constitute the jig A for machining the side panels of stairs of the present invention.

Next, the effects of the present invention will be explained based on the conditions in which they are used.

First, the side plate B is placed on the workbench with the processed surface facing upward, and the tread grooves 50, 50, . . . and the grooves 51, 51, . (However, for the tread groove 50 to be machined first, mark the center line S of the groove.) Place the side plate processing jig A of the present invention [hereinafter referred to as jig A] on the side plate B with the surface of the turning plate 11 facing upward. The front surface of the base column 18 is placed on the upper edge surface 52 of the side plate B.
While in contact with the side plate B, shift the jig A laterally and rotate the rotating plate 11 around the shaft bolt 44, so that the center line S of the first tread groove 50 to be machined is rotated. Center line display line 8 of plate 11,
8, and tighten the screws 2 of the fixing bracket 27.
The jig A is fixed to the side plate B by tightening step 5, and the position of the cut extension line b of the tread groove 50 to be machined next is confirmed by the scale 13 provided on the base column 18.

Depending on the type of hand router (not shown) used, the value can be calculated using the formula: [Router guide diameter (m/m) + Tread groove width (m/m) - Router pit diameter (m/m)] ÷ 2. cod, scale 10,10
Fix the backing plates 33, 33 according to the scale, and calculate the numerical value using the formula of [Router guide diameter (m/m) - Router pit diameter (m/m) - α dimension (actual measurement)] ÷ 2. When it appears, align it with the graduation on the scale 9 and fix the positioning plate 32 so that it is perpendicular to the contact plates 33, 33.

This completes the setting of the jig A, and rotates the hand router with the cutter attached whose dimensions from the bottom surface of the router guide to the cutting edge are determined according to the depth of the tread groove 50, and moves the router guide to the contact plates 33, 33. Complete the machining of the first tread groove 50 by moving along the inner surface of the positioning plate 32 until it comes into contact with the lower edge of the positioning plate 32 (see the left side of Fig. 14), then loosen the screw 25 of the fixing bracket 27 and fix Move tool A laterally [leave the positioning plate 32 and contact plates 33, 33 as they are].

Next, the cut extension line b of the tread groove 50 to be machined is aligned with the graduation of the scale 13 confirmed in the previous step, the jig A is fixed to the side plate B, and the machining operation is repeated in the same manner as before.

Also, to process the grooves 51, 51... (see Figure 14), remove the tightening bolt 45 and rotate the rotating plate 11 by 90 degrees, and to adjust the positioning plate 32 and the contact plates 33, 33, process the tread groove 50. Follow the same procedure and set the jig center line 8,
8' to the center of the groove 51.

The clamping mounting rod 43 clamps the side plate B during machining of the tread grooves 50 and the grooves 51, and prevents displacement due to vibration.

In the case of the opposite side plate, the above processing is carried out by rotating the rotating plate 11 of jig A by 90 degrees and performing the same steps as above.

The jig according to the present invention can process the tread grooves (or kekomi grooves) on the pair of left and right side plates without changing the set angle between the rotating plate and the base column and the fixed position of the positioning plate and the contact plate. It can be carried out continuously, reliably and accurately by only moving and fixing, and the setting is extremely simple, making it suitable for mass production of side plates. Also, it can be used for rotating plates, base bodies, fixing metal fittings, positioning plates, contact plates, etc. This invention has excellent practical effects, such as being extremely convenient for storing, transporting, etc., since each member such as the mounting rod for clamping can be separated.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the rotating plate, Figs. 2, 3, and 4 are a front view, plan view, and side view of the base column with fixing fittings, respectively, and Fig. 5 is a plan view of the positioning plate. 6 is a plan view of the plate, FIGS. 7 and 8 are a plan view and a side view of the mounting rod for clamping, respectively, FIG. 9 is a plan view of the present invention, FIG. 10 is a front view, FIG. 11, 12 is a cross-sectional view taken along lines PP and QQ in FIG. 9, FIG. 13 is a diagram showing how to punch out the side plate, and FIG. 14 is a diagram illustrating the operation of the present invention. 2... Base plate, 3... Screw hole for base column mounting, 4...
...Long hole, 5...Screw hole for fixing positioning plate, 6...
Square hole, 7...screw hole for mounting plate, 9...scale, 10...scale, 12...prismatic column, 13...
Scale, 14... Shaft hole, 15... Screw hole for fixing rotating plate, 18... Base column, 19... L-shaped frame, 20... Vertical wall portion, 23... Horizontal wall portion, 24
...Knob, 25...Screw tool, 26...Press plate,
27... Fixing metal fitting, 31... Long hole, 32... Positioning plate, 33... Backing plate, 34... Long hole, 44...
...Shaft bolt, 45...Tightening bolt, 46...Mounting bolt, 47...Fixing bolt.

Claims (1)

[Claims] 1 Screw hole 3 for mounting the base column on the vertical center line XX, screw hole 5 for fixing the positioning plate above and below it,
5,... is drilled and a screw hole 3 for mounting the base column is provided at the top.
A square punch hole 6 in the longitudinal direction with the center line XX as the center line is bored in the middle part of the flat base plate 2 having a semi-circular long hole 4 with the center line XX as the center line. A vertical scale 9 is provided above the surface, and screw holes 7, 7, 7, and 7 are provided at the upper and lower portions of the left and right sides of the hole 6, respectively.
7, 7, 7... and scales 10, 10... are provided to form a turning plate 11, and an inverted T-shaped positioning plate 32 having a longitudinal long hole 31 in the upper surface thereof.
A fixing bolt 47 is screwed into the positioning plate fixing screw hole 5 through the elongated hole 31 so that the rotating plate 11 can be slid up and down and fixed at any position.
On the left and right sides of the surface, vertically rectangular contact plates 33, 33 having horizontal elongated holes 34, 34, 34, 34 in the upper and lower portions thereof are inserted through the elongated holes 34, 34... The mounting bolts 46, 46..., which are screwed into the mounting screw holes 7, 7..., are screwed together so that they can be slid laterally and fixed at any position, and are attached to the left and right sides of the surface of the rectangular column 12 of an appropriate length. scales 13, 13 are provided in the swivel plate 11, a shaft hole 14 is bored in the center, and the swivel plate is fixed at a distance on both sides of the shaft hole 14 at the same radius as the center line of the elongated hole 4 of the swivel plate 11. screw hole 1
At the center of the base column 18 in which holes 5 and 15 are bored, the wall 2 is attached to the tip of the horizontal wall 23 of the L-shaped frame 19.
3, a screw 25 having a knob 24 at its lower end is vertically screwed together, and a fixing metal 27 with a rotatable press plate 26 fitted to its upper end is attached to a vertical wall with the screw 25 in front. A base column body 29 with fixing metal fittings is constructed by fixing the upper end of the base column body 20 with fixing metal fittings.
The surface of the base column 18 of No. 9 is in contact with the lower surface of the rotating plate 11, and is rotatably installed around the bolt 44, which passes through the shaft hole 14 and is screwed into the base column attachment screw hole 3. A screw hole 15 for fixing the rotating plate passed through the long hole 4 of the rotating plate 11 and provided in the corresponding base column 18
A jig for machining a side panel of a staircase, characterized in that the rotating plate 11 and the base column body 29 with fixing fittings can be appropriately fixed by a tightening bolt 45 that is screwed into the jig.