JPS586996Y2 - Stair side plate processing ruler - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a ruler that determines the machining position of a step plate fitting groove in a side plate when constructing stairs for a house or the like.

As shown in FIG. 1, when machining the side plate a of a staircase, first grooves into which the step plates are fitted are formed at intervals of step gaps.

It is necessary to cut b...

Conventionally, when processing such a fitting groove b...
(In the case of a general house, n is 13 steps) Divide the step into equal parts to find the step, draw a parallel line at the interval of this step using the line C, which is the floor surface, as a reference, and then use this line as the reference. There is a groove that fits into the groove.

Mark the machining position of b..., and then cut the fitting groove using an electric groove cutter or the like using this scored line as a reference, b...
Work such as cutting ... is being carried out.

However, since the side plate a of the stairs is long and is installed diagonally due to its structure, it is necessary to draw exactly parallel lines across the 13 steps based on line C, which is the floor surface. This is an extremely difficult task in itself, and even more so, the work of determining the machining position of b to match the slope of the stairs, along with the positioning of its lateral position d, is a difficult and troublesome work. It is.

Further, when performing the groove cutting operation, great care and skill are required to accurately cut the grooves along the score lines, which is also an extremely difficult and troublesome operation.

This idea was made as a result of consideration in view of the above-mentioned problems in processing the side plates, and it is possible to easily perform the above-mentioned series of operations from setting the tread to cutting the grooves without requiring special skill. , and is designed to be performed accurately.

The configuration of this invention will be explained in detail below based on an illustrated embodiment.

In Fig. 2, 1 is set so that the inclination angle θ is approximately equal to the slope θ of ordinary stairs (usually around 45°), and the height h' is approximately equal to the tread of ordinary stairs. Alternatively, it is a parallelogram-shaped board slightly smaller than that, and on two parallel sides of this board 1, there are long guide plates 2a,
2b is provided, and a long reference plate 3 and a groove cut line 4 are provided on the other two sides intersecting the above two sides, respectively.

As shown in FIG. 3, the guide plate 2a is a long member with a hook-shaped cross section, and the guide surfaces 5a, 5a set on it are
screw holes 7a, 7a and 8a, 8 in the pieces perpendicular to the
A is drilled.

On the board 1 side, these screw holes 7a, 7a and Ba,
Long holes ga and ga are drilled corresponding to Ba, and washer 1
Thumb screws 10a and lQa inserted into the long holes 9a and 9a through holes 1a and 11a are inserted into the screw hole 7a.
, 7a or 8a, ga.

This point is exactly the same for the other guide plates 2b, and the guide surfaces 5a and 5b formed on both guide plates 2a and 2b, respectively.
Alternatively, two opposing parallel surfaces are formed by 6a and 6b.

In this case both guide surfaces 5a, 5b or 5a. 6b
(7) The distance between thumbscrews 10a, 10a and 1
0b.

By sliding the respective guide plates 2a, 2b along the elongated holes 9a, 9a and 9b, 9b, the lengths of the elongated holes 9a, 9a and 9b, 9b can be freely adjusted. Is possible.

As shown in FIG. 4, the reference plate 3 is a long member having an L-shaped cross section, and long holes 13, 13 are formed in the pieces perpendicular to the reference plane 12 set therein.

From the board 1 side, screws 1 are inserted corresponding to the long holes 13, 13.
4.14 is provided in a protruding manner, and after the screws 14.14 are inserted into the respective long holes 13, 13, they are screwed into the wing nuts (15.15) via washers 16.16.

Therefore, by tightening this butterfly nut) 15.15, it is possible to fix the reference surface 12 parallel to the groove cut line 4, which will be described later.In this case, the reference surface 12 and the groove cut line 4
The distance can be freely adjusted within the length range of the long holes 13, 13 by sliding the reference plate 3 along the respective long holes 13.13 with the screws 14.14. .

The reference plate 3 is also provided with a stopper 17 that is used during groove cutting work, which will be described later.

A screw 18 is protruded from this L-shaped stopper 17, and this screw 18 is inserted into a long hole 19 bored in the longitudinal direction of the reference plate 3, and is further inserted into a wing nut through a washer 21. 20'.

However, this stopper 17 also allows the screw 18 to be inserted into the elongated hole 19.
By sliding it along the elongated hole 19, its position can be adjusted within the length range of the elongated hole 19.

The groove line 4 is formed by the other side 4a of the substrate 1 that is parallel to the side on which the reference plate 3 is provided, and a side 4b formed by cutting out a key shape from this side 4a. Fitting grooves to be machined on side plate a, b... (first
The latter lines the upper line that serves as the reference for
The horizontal position d of b... is shown respectively.

An example of how to use this ruler will be explained using Figures 5 and 6.
First, as shown in FIG. 5A, the reference plane 12 and the groove cutting line 4 are made parallel, the distance between them is set as the stair tread, and the angle between the reference plane 12 and the guide surface 5a is set to the slope of the staircase θ. to fix these relationships.

Next, the side plate a is sandwiched between the guide plates 2a and 2b so that the ruler can be slid in the longitudinal direction of the side plate a, and the guide plate 2b is fixed in this state.

After that, first align the reference surface 12 with the line C that becomes the floor surface, mark the machining position of the first stage fitting groove with the groove cutting line 4, and then use this ruler as shown by the arrow B in Fig. 5A. , slide it along the side plate a, align the reference surface 12 with the already marked line, and mark the processing position of the second-stage fitting groove with the groove cut line 4. Write the lines one by one until the grooves match.

Using the thus scored line as a reference, the fitting groove b is then cut as shown in the opening in Figure 5. At this time, the groove cutter e The side surface of the cutter is aligned with the reference surface 12, and the cut is made in the direction of the arrow, using the reference surface 12 as a guide, and finally stops at the stopper 17.

However, the stopper 17 of the lever is positioned in advance so that when the tip of the groove cutter e hits it, the cutter (not shown) of the groove cutter e is exactly located at the lateral position d of the fitting groove. Adjust it.

In the explanation so far, the parallel guide surface 5 facing the side plate a
A and 5b are sandwiched and the ruler is slid in this state, but it is also possible to provide only one guide surface 5a, press it against one side of step board a, and slide it along this. The purpose of is achieved.

Note that when processing the pair of left and right side plates a, the substrate 1 is used with the front and back sides reversed, and of course the guide plates 2a, 2b and the reference plate 3 must be reattached at this time.

As explained above, according to this invention, first, the reference surface 12
and the groove cutting line 4 are set parallel to each other at a distance of stepping, and the angle between the reference surface 12 and the guide surface 5a is set according to the slope between floors θ.
As long as you set it to , you do not need any skill or attentiveness. Accurately mark the machining position of the mating groove. It becomes possible to cut ..., and therefore it becomes possible to improve work efficiency and work accuracy.

[Brief explanation of drawings]

Figure 1 is a side view showing an example of machining a side plate of a staircase, Figure 2 is a plan view of a side plate machining ruler showing an example of this invention, and Figures 3 and 4 are the assembled state of each member of the ruler. FIG. 5 is a schematic plan view showing an example of the use of the ruler, and FIG. 6 is an end view taken along the line A--A in FIG. 5A. 1... Board, 2 a, 2 b... Guide plate, 3... Reference plate, 4... Grooving line,
5a, 5b, 6a, 6b...Guidance surface, 12...
...Reference plane, 9a, 9b, 13.13...
...Long hole, a...Side plate.

Claims (1)

[Claims for Utility Model Registration] 10 A guide surface that can be slid freely by pressing against the side of the side plate of the stairs, and a reference surface that can be fixed to the guide surface at an angle corresponding to the slope of the stairs. , a stair side plate machining ruler provided with a groove cut line that can be fixed parallel to this reference plane and at a distance corresponding to the tread. 2. On two opposing parallel sides of the parallelogram board,
A utility model according to claim 1, wherein a guide plate having a guide surface is provided, and a reference plate having a reference surface and a groove cut line are provided on the other two sides intersecting these two sides. Processing ruler. 3. Utility model registration claim 2, in which a guide plate and a reference plate slide with respect to the board using elongated holes as guides, and these drawing boards are fixed to the board by fastening means such as screws. Processing ruler described in section.