JP2820642B2 - Bracing ruler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for determining the length of a brace and the angle of a joint accurately, and at the same time, in order to efficiently perform the work of the brace, the brace is used by striking the construction location. It relates to a bracing ruler.

[0002]

2. Description of the Related Art Needless to mention specific examples, abutting plates are rotatable at both ends of a telescopic arm with respect to a corner formed by a horizontal member (generally a beam or a base) and a vertical member (generally a column) of a building. There is a structure that is pivotally attached to the.

The conventional example employs a structure in which an abutment plate is directly superimposed on the end of an extensible arm, and these are assembled to each other by a support shaft. The abutment plate is maintained at a constant angle with respect to the arm. That is, when frictional force is generated between the end of the telescopic arm and the abutment plate due to the tightening strength between the ends of the support shaft, and the abutment plate is engaged with a corner formed by both the vertical and horizontal members of the building. The relative position between the telescopic arm and the butting plate determined in the above is maintained.

[0004]

The prior art uses a direct frictional resistance between the end of the telescopic arm and the abutment plate to maintain a fixed position between the two ends. Wear may be caused, or the tightening strength of the support shaft may be loosened.

[0005] Also, due to the processing accuracy, there may be a case where the frictional resistance between the end of the telescopic arm and the abutment plate cannot be sufficiently obtained, which requires skill in manufacturing.

The present invention has been made by focusing on such a drawback of the conventional example.

[0007]

SUMMARY OF THE INVENTION A strut ruler in which abutment plates for the corners formed by the horizontal and vertical members of the building are rotatably pivoted at both ends of the telescopic arm. An intermediary material was attached, an adjusting plate, an elastic plate such as rubber, and an abutment plate were sequentially superimposed on the intermediary material, and were pivotally attached to each other by a support shaft, and a screw hole was provided in the intermediate material, and screwed into the screw hole. The tip of the adjusting screw is in contact with the adjusting plate.

It is even more effective if a plurality of adjusting screws are arranged at equal intervals on the same circle around the support shaft.

[0009]

The adjusting plate presses the elastic body in accordance with the amount of protrusion of the tip of the adjusting screw from the screw hole, and the elastic body presses against the butting plate to adjust the frictional resistance in the rotating direction of the butting plate. The rotation of the butting plate is appropriately restricted.

In addition, by disposing a plurality of adjusting screws on the same circle centered on the support shaft at equal intervals, the entire adjusting plate is uniformly pressed by the adjusting screws.
The butting plate rotates smoothly when engaging and matching the corners of the cross member and the vertical member.

[0011]

1 shows an embodiment of a brace ruler according to the present invention. FIG. 1 is a front view of a main part, FIG. 2 is a sectional view taken along line aa of FIG. 1, and FIG. FIG.

In the drawing, reference numeral 1 denotes a telescopic arm.
Is maintained at a fixed length by tightening the knobs 2 and 2 ', and can be freely expanded and contracted by loosening the knobs 2 and 2'.

The knob indicated by reference numeral 3 is operated when the telescopic arm 1 is arranged at a central position along the longitudinal direction of the brace 4 material, and the holding pieces 5 and 5 interlocked with the knob 3.
Is moved in the width direction of the telescopic arm 1 to perform a so-called centering operation.

At both ends of the telescopic arm 1, intermediate members 6 as castings are attached. The intermediate member 6 has a mounting piece 8 protruding from one end of a circular main disk 7, and a free end 8 a of the mounting piece 8 is inserted into an end of the telescopic arm 1. The free end 8a is fastened to each other by a fixing screw 9. A cylindrical support shaft 10 is protruded from the center of one main surface of one side of the main body plate 7, and the support shaft 10 is connected to an adjustment plate 11, an elastic plate 12 and the like. And the abutting plate 13 is sequentially penetrated, and the tip of the support shaft 10 protruding from the abutting plate 13 is further penetrated through the reinforcing plate 14 and caulked, whereby the members 7, 11, 12, 13, 14 are integrated with each other. It is.

The adjusting plate 11, the abutting plate 13 and the reinforcing plate 14 are made of a metal plate, and the elastic plate 12 is made of rubber, but may be made of synthetic resin.

Screw holes 15 are provided at equal intervals on the same circle of the main body 7 with the support shaft 10 as a center.
An adjusting screw 16 is screwed into the main plate 7 from the other one side, and the tip of the adjusting screw 16 is brought into contact with the adjusting plate 11.

The abutment plate 13 is formed of a rectangular body having a chamfered corner, and the corners 13a, 13a.
a is engaged with a corner 17 formed by a horizontal member 18 and a vertical member 19 of a building.

When the adjusting screw 16 is screwed in the direction in which the screw hole 15 is inserted, the tip of the adjusting screw 16 is
As a result, the elastic plate 12 is compressed and a pressing force is applied to the abutment plate 13, and accordingly, frictional resistance acts on the abutment plate 13, and the abutment plate 13 is less likely to rotate.

In short, the screw hole 15 at the tip of the adjusting screw 16
By adjusting the amount of protrusion from the
Is controlled.

As described above, the strut ruler A performs the centering work in relation to the plate material for the strut 4, and then the corner 13 a of the butting plate 13 is moved to the horizontal member 18 and the vertical member 19. The telescopic arm 1 and the abutment plate 1
After determining the relative angle to 3 (from the knob 2,
2 ′ is operated to adjust the length between the corner portions 17 and 17), and the abutment plate 13 is placed on the wood to be the brace 4 and
By applying a cutting line along the corner 13a of the above, the brace 4 having a length and a connection angle suitable for the site can be obtained.

The reason why the support shaft 10 is formed in a cylindrical shape is as follows.
This is so that a position indication for a fastening rod such as a nail or a bolt can be marked on the brace 4 through the support shaft 10.

[0022]

The present invention has the configuration described above,
By operating the adjusting screw, the frictional resistance of the elastic plate against the abutment plate can be adjusted to provide a brace ruler in which the rotation of the abutment plate is appropriately controlled. A uniform product can be obtained by absorbing errors.

[Brief description of the drawings]

FIG. 1 is a front view of a main part.

FIG. 2 is a sectional view taken along line aa of FIG.

FIG. 3 is a front view showing a use state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Telescopic arm 4 Bracing 6 Intermediate 10 Support shaft 11 Adjustment plate 12 Elastic plate 13 Butt-off plate 15 Screw hole 16 Adjustment screw

Claims (2)

(57) [Claims] An intermediate member is attached to each end of a telescopic arm at a strut ruler in which abutment plates for corners formed by a horizontal member and a vertical member of a building are rotatably pivotally mounted at both ends of the telescopic arm. An adjusting plate, an elastic plate made of rubber or the like, and an abutment plate are sequentially superimposed on the intermediary material and pivotally attached to each other by a support shaft. A screw hole is provided in the intermediary material, and a tip of an adjusting screw screwed into the screw hole. Is in contact with the adjustment plate. 2. The strut ruler according to claim 1, wherein a plurality of adjusting screws are arranged at equal intervals on the same circle around the support shaft.