JP2010194695A - Measurement assisting device for carpenter square - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a measurement assisting device for a steel square that allows the application of a widely available steel square as a jig for mounting a flange F to a pipe P at a right angle, and moreover, flexibly corresponds to the flange size and the pipe size. <P>SOLUTION: The measurement assisting device 1 for a steel square is mounted to the long side N of a steel square K. The flange F is applied at the end of the pipe P so as to bring each contact part 5 of the measurement assisting device 1 for a steel square, mounted to the steel square K, into contact with the outer peripheral part of the pipe P and to bring the short side T into contact with a mating face Fa of the flange F. While carefully paying attention in order to prevent a gap from opening between each contact part 5 and the outer peripheral part of the pipe P, the posture of the flange F is adjusted so as to make the posture into a state of preventing a gap from opening between the short side T and the flange F. When it is in the state of preventing a gap from opening between the short side T and the flange F while being in the state of preventing a gap from opening between each contact part 5 and the outer peripheral part of the pipe P, an angle θ formed by the flange F and the axis line J of the pipe P becomes a right angle. While keeping that state, the flange F is welded to the pipe P. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a measuring instrument for measuring tape used by being attached to a measuring tape, and more particularly to a measuring instrument for measuring tape used when attaching a flange to a pipe at a right angle.

For example, when piping for constructing plant piping or equipment piping in a factory or the like is performed, it is necessary to connect the pipes. In order to connect the pipes, first, as shown in FIG. 11, a flange F in which a plurality of holes are formed is attached to the end of the pipe P by welding. Then, the flanges F of the pipes P to be connected are overlapped so that the holes face each other, the bolts are inserted into the holes of the flanges F, and the nuts attached to the bolts are tightened to connect the pipes P to each other.
If the flange F is mounted in an inclined posture with respect to the pipe P, that is, if the angle θ formed by the flange F and the axis J of the pipe P is not a right angle, they are intended to overlap as shown in FIG. A gap is generated between the flanges F. Moreover, if the flange F attached with inclination with respect to the pipe P is piled up, the pipe P will incline as shown in FIG.12 (b).

  Therefore, there is a right angle ruler described in Patent Document 1 as a jig for attaching the flange F to the pipe P at a right angle. However, this right angle ruler not only has no other use, but also has a problem that a plurality of ones corresponding to the sizes of the flanges and pipes must be prepared.

Japanese Utility Model Publication No. 6-17886

  The present invention has been made by paying attention to the above-mentioned conventional problems, and as a jig for mounting the flange F at a right angle to the pipe P, it is possible to use a commercially available curved scale. It is an object of the present invention to provide a measuring instrument for a curved scale that can flexibly correspond to the size of a flange or a pipe.

  The present invention has been made to solve the above problems, and the invention of claim 1 includes a main body portion, an abutting portion provided on the main body portion, and fixing means for attaching the main body portion to a curved scale. When the main body is fixed to the length of the curved scale by the fixing means, the abutment portion is parallel to the length of the curved scale.

  According to a second aspect of the present invention, there is provided the measuring instrument for measuring a curved line according to the first aspect, wherein the fixing means includes a groove formed in the main body part into which the longitudinal length of the curved line enters, and a longitudinal length of the curved line provided in the main body part and fitted into the groove It is comprised by the fixing screw which presses the side surface of this, and is a measurement assistance tool for curved measures characterized by the above-mentioned.

  According to a third aspect of the present invention, there is provided a measuring instrument for measuring a curved line according to the first or second aspect, wherein the main body is fixed to the longitudinal side of the measuring tape by a fixing means, and the side portion is parallel to the wife's handle. It is a measurement aid for a music scale characterized by being provided.

  According to a fourth aspect of the present invention, when the main body is fixed to the two curved scales by the fixing means in the measurement measuring instrument for the curved scale according to any one of the first to third aspects, the two curved scales are perpendicular to each other. A measuring instrument for measuring a curve, wherein a side surface of the curve is used as a contact portion.

  According to the measuring instrument for a curved scale of the present invention, it is possible to use a commercially available curved scale as a jig for attaching the flange F at a right angle to the pipe P, and it is flexible to the size of the flange and the pipe. It can correspond to.

It is a perspective view of the measurement auxiliary tool for curved measures according to Embodiment 1 of the present invention. It is a figure for demonstrating the operation | work which attaches a flange to the edge part of a pipe at right angles using the tape measure to which the measurement assistance tool for curve measures of FIG. 1 was attached. It is a figure for demonstrating the operation | work which connects two pipes at right angles via an elbow using the tape measure to which the measurement assistance tool for curve measures of FIG. 1 was attached. It is a perspective view for demonstrating the operation | work which measures the external shape of a pipe using the tape measure to which the measurement assistance tool for curve measures of FIG. 1 was attached. It is a perspective view for demonstrating the operation | work which scribes a flat plate using the tape measure which attached the measurement assistance tool for curve measures of FIG. It is a perspective view of the measurement assistance tool for curved measures which concerns on Embodiment 2 of this invention. It is a figure for demonstrating the operation | work which attaches a flange to the edge part of a pipe at right angles using the tape measure to which the measurement assistance tool for curve measures of FIG. 6 was attached. It is a figure for demonstrating the operation | work which connects two pipes at right angles via an elbow using the tape measure to which the measurement assistance tool for curve measures of FIG. 6 was attached. It is a figure for demonstrating the squareness measurement of the edge part of the large diameter pipe P using the tape measure to which the measurement assistance tool for curve measures of FIG. 6 was attached. It is a figure for demonstrating the operation | work which attaches the elbow L to the pipe P using the tape measure to which the measurement assistance tool for curve measures of FIG. 6 was attached. It is a perspective view of the pipe for piping for comprising plant piping, plant piping, etc. in a plant piping, a factory, etc., and the flange welded to the edge part of this pipe. It is a figure for demonstrating the problem when a flange is attached with the attitude | position inclined with respect to a pipe, (a) shows the state where a clearance gap produces between the flanges which are going to overlap, (b) When the flange F is overlapped, the pipe is inclined.

A measuring instrument for measuring a curved line 1 according to Embodiment 1 of the present invention will be described with reference to FIGS.
Reference numeral 3 denotes a main body portion. The main body portion 3 has a substantially rectangular flat plate shape extending in the vertical direction, and a lower surface thereof is a contact portion 5 described later, and left and right surfaces are a left side portion 7 and a right side, respectively. It is part 9.
A groove 11 extending in the left-right direction is formed at the upper end of the main body 3, and this groove 11 communicates from the left side 7 to the right side 9. The groove 11 is surrounded by a bottom surface 13 and upper and lower inner side surfaces 15, 17, and the longitudinal section of the groove 11 is U-shaped. The width dimension of the groove 11 is set to a size that allows the longitudinal length N of the curved scale K to fit closely, and the depth dimension is set to be substantially the same as the thickness dimension of the longitudinal length N of the curved scale K.

A narrow upper side wall portion 19 including the inner side surface 15 is provided on the upper side across the groove 11, and a wide lower side wall portion 20 including the inner side surface 17 is provided on the lower side.
A female screw hole 21 is formed in the center of the upper wall portion 19, and the female screw hole 21 passes through the upper wall portion 19. A fixing screw 23 is screwed into the female screw hole 21, and a distal end portion of the fixing screw 23 projects from the inner side surface 15.
The fixing means is constituted by a groove 11 and a fixing screw 23.
A rectangular hole 25 is formed below the groove 11 of the main body 3.

Next, how to attach the measuring instrument for measuring a curved line 1 will be described.
The longitudinal length N is fitted into the groove 11 so that the lower side wall portion 20 of the main body 3 faces the wife T of the curved scale K, and the fixing screw 23 is tightened in this state. As a result, the fixing screw 23 presses the side surface of the longitudinal length N, and the measuring instrument 1 for measuring the music scale is fixed to the longitudinal length N. In the state in which the measurement measuring instrument 1 for the tape measure is fixed to the length N, the contact portion 5 is parallel to the side surface of the length N of the curve measure K, and the left side portion 7 and the right side portion 9 are the side surfaces of the wife T of the curve measure K. Becomes parallel.
As shown in FIG. 2, when the two measurement aids 1 for measuring a curve are attached to the measurement measure K, the two measurement aids 1 for measuring a measure are arranged at intervals.

Next, a method for using the measuring instrument for measuring a curved line 1 will be described.
The operation of attaching the flange F to the end of the pipe P at a right angle will be described (see FIG. 2).
As shown in the figure, two measurement aids 1 for a measure are attached to the longitudinal length N of the measure K.
The flange F is brought into contact with the end of the pipe P, and each contact portion 5 of the measuring instrument 1 for the measuring tape attached to the measuring instrument K is brought into contact with the outer peripheral portion of the pipe P, and the wife T is brought into contact with the mating face Fa of the flange F. Abut. While taking care not to open a gap between the contact portion 5 and the outer peripheral portion of the pipe P, the posture of the flange F is adjusted so that no gap is opened between the wife T and the flange F. In a state where no gap is opened between the contact portion 5 and the outer peripheral portion of the pipe P and a gap is not opened between the wife T and the flange F, the axis J of the flange F and the pipe P is The angle θ to be made becomes a right angle. While maintaining this state, the flange F is welded to the pipe P. Thus, the flange F can be attached to the pipe P at a right angle by a simple operation.

The operation | work which connects the two pipes P1 and P2 at right angles via the elbow L is demonstrated (refer FIG. 3).
As shown in the figure, the two measurement aids 1 for the measure are attached to the longitudinal length N so that the lower wall portion 20 is on the opposite side of the handle T of the measure K.
The two pipes P1, P2 are arranged in a horizontal and vertical relationship, and the end of the elbow L is provided so as to abut against the ends of the two pipes P1, P2 arranged as described above. . And each contact part 5 of the measurement measuring instrument 1 for the music tape attached to the music scale K is brought into contact with the outer peripheral portion of the pipe P1, and the wife T is brought into contact with the outer peripheral portion of the pipe P2. The posture of the pipe P2 is adjusted so that there is no gap between the abutment T and the outer peripheral part of the pipe P2, while taking care not to open a gap between the contact part 5 and the outer peripheral part of the pipe P1. . In a state where no gap is opened between the abutment portion 5 and the outer peripheral portion of the pipe P1, and in a state where no gap is opened between the wife T and the outer peripheral portion of the pipe P2, the axis J1 of the pipe P1 and the pipe The angle θ formed by the axis J2 of P2 becomes a right angle. The elbow L is welded to the two pipes P1 and P2 while maintaining this state. In this way, the two pipes P1 and P2 can be connected through the elbow L at a right angle by a simple operation.

An operation for measuring the outer shape of the pipe P will be described (see FIG. 4).
As shown in the figure, the measuring instrument 1 for measuring a curved scale is attached to the longitudinal length N so that the lower wall portion 20 faces the wife T of the measuring scale K.
The wife T is brought into contact with the outer peripheral portion of the pipe P so that the tape measure K is hung on the pipe P. The fixing screw 23 is loosened, and the measuring instrument for measuring a curved line 1 is slid along the longitudinal length N so that the right side portion 9 is brought into contact with the outer peripheral portion of the pipe P. The scale of the length N of the portion where the right side portion 9 is located is read in a state in which the wife T is in contact with the outer peripheral portion of the pipe P and the right side portion 9 is in contact with the outer peripheral portion of the pipe P. Thus, the external shape of the pipe P can be measured with a simple operation.

An operation for marking the flat plate H will be described (see FIG. 5).
As shown in the figure, the measuring instrument 1 for measuring a curved scale is attached to the longitudinal length N so that the lower wall portion 20 faces the wife T of the measuring scale K.
The tape measure K is placed on the flat plate H, and the right side portion 9 is brought into contact with the side surface of the flat plate H. While the right side portion 9 is in contact with the side surface of the flat plate H, the curved scale K is pressed, and a line is drawn with a pencil or the like along the side surface of the longitudinal N or the wife T. Thus, it is possible to accurately perform a ruled line for cutting out a rectangular flat plate from the flat plate H by a simple operation.

A measuring instrument 51 for measuring a music scale according to Embodiment 2 of the present invention will be described with reference to FIGS.
Reference numeral 53 denotes a main body portion. The main body portion 53 has a cross-shaped flat plate shape when viewed from the front, and includes an upper portion 55, a central portion 57, a lower portion 59, a left portion 61, and a right portion 63.
A groove 71 extending in the vertical direction is formed in the main body 53, and this groove 71 communicates from the upper part 55 to the lower part 59 through the central part 57. The groove 71 is surrounded by a bottom surface 73 and left and right inner surfaces 75, 77, and the cross section of the groove 71 is U-shaped. The width dimension of the groove 71 is set to a size that allows the longitudinal length N of the curved scale K to fit closely, and the depth dimension is set to approximately twice the thickness dimension of the longitudinal length N of the curved scale K.

A narrow left side wall portion 79 including an inner side surface 75 is provided on the left side of the groove 71, and a narrow right side wall portion 81 including an inner side surface 77 is provided on the right side.
Two female screw holes 83 are formed in the right side wall portion 81, and the two female screw holes 83 are arranged at the center of the upper portion 55 and the center of the lower portion 59. Each of the two female screw holes 83 penetrates the right side wall portion 81. A fixing screw 85 is screwed into each of the female screw holes 83, and the tip of each fixing screw 85 protrudes from the inner side surface 77.

Further, a groove 91 extending in the left-right direction is formed in the main body 53, and this groove 91 communicates from the left part 61 through the central part 57 to the right part 63. The groove 91 and the groove 71 are arranged orthogonally.
The groove 91 is surrounded by a bottom surface 93 and upper and lower inner side surfaces 95 and 97, and the longitudinal section of the groove 91 is U-shaped. The width dimension of the groove 91 is set to a size that allows the longitudinal length N of the curved scale K to fit closely, and the depth dimension is set to be substantially the same as the thickness dimension of the longitudinal length N of the curved scale K.

A narrow upper side wall portion 99 including the inner side surface 95 is provided on the upper side across the groove 91, and a narrow lower side wall portion 101 including the inner side surface 97 is provided on the lower side.
Two female screw holes 103 are formed in the lower wall portion 101, and the two female screw holes 103 are arranged at the center of the left part 61 and the center of the right part 63. Each of the two female screw holes 103 penetrates the lower wall portion 101. A fixing screw 105 is screwed into each of the female screw holes 103, and the tip of each fixing screw 105 protrudes from the inner side surface 97.
The fixing means includes a groove 71, a fixing screw 85, a groove 91, and a fixing screw 105.

Next, how to attach the measuring instrument 51 for measuring a curve will be described.
The wife T1 of the music scale K1 is fitted in the groove 71, and the fixing screw 85 is tightened in this state. As a result, the fixing screw 85 presses the side surface of the wife's hand T1, and the measuring instrument 51 for measuring the music scale is fixed to the wife's hand T1. Then, the longitudinal length N2 of the curved scale K2 is fitted into the groove 91, and the fixing screw 105 is tightened in this state. As a result, the fixing screw 105 presses the side surface of the longitudinal length N2, and the measuring instrument 51 for measuring the music scale is fixed to the longitudinal length N2. In the state where the measuring instrument 51 for measuring a curved scale is fixed to the wife T1 and the length N2, the wife T1 and the length N2 are orthogonal to each other, and the length N1 and the length N2 are parallel to each other.

Next, a method of using the measuring instrument 51 for measuring a curve will be described.
The operation of attaching the flange F to the end of the pipe P at a right angle will be described (see FIG. 7).
As shown in the figure, a measuring instrument 51 for measuring a curved line is attached to a wife T1 of the curved line K1 and a longitudinal length N2 of the curved line K2. Thereby, the music scale K1 and the music scale K2 are connected via the measurement auxiliary tool 51 for music scale.
The work is performed in the same manner as in the case of using the measuring instrument for measuring tape 1 described above with the side surface of the length N1 of the measuring board K1 as the contact portion. Thus, the flange F can be more accurately attached to the pipe P at a right angle by using the longitudinal length N1 as the contact portion. Moreover, the size of the flange F or the pipe P can be flexibly dealt with by changing the position at which the measuring instrument 51 for measuring the curvature is fixed with respect to the wife T1 or the longitudinal length N2.

The operation | work which connects the two pipes P1 and P2 at right angles via the elbow L is demonstrated (refer FIG. 8).
As shown in the figure, the measuring instrument 51 for measuring a music scale is attached to the wife T1 of the music scale K1 and the wife T2 of the music chart K2.
The work is performed in the same manner as in the case of using the measuring instrument for measuring tape 1 described above with the side surface of the length N1 of the measuring board K1 as the contact portion. Thus, by using the longitudinal length N1 as the contact portion, the two pipes P1 and P2 can be more accurately connected at right angles via the elbow L. Moreover, the size of the elbow L or the pipe P can be flexibly dealt with by changing the position where the measuring instrument 51 for measuring the curvature is fixed with respect to the wife T1 or the wife T2.

The perpendicularity measurement at the end of the large-diameter pipe P will be described (see FIG. 9).
As shown in the figure, a measuring instrument 51 for measuring a curve is attached to a length N1 of the measuring scale K1 and a length N2 of the measuring scale K2, and the length N1 and the length N2 are connected via the measuring instrument 51 for measuring a curve.
The length N1 and the length N2 are applied to the end of the large-diameter pipe P. At this time, the lower end portion of the measuring instrument 51 for the curved measure enters the pipe P. Then, the wife T2 is brought into contact with the outer peripheral portion of the pipe P. Thus, the squareness measurement of the end portion of the large-diameter pipe P can be performed.

An operation of attaching the elbow L to the pipe P will be described (see FIG. 10).
As shown in the figure, a measuring instrument 51 for measuring a curved line is attached to a wife T1 of the curved line K1 and a longitudinal length N2 of the curved line K2.
The elbow L is brought into contact with the end portion of the pipe P, the longitudinal length N1 is brought into contact with the outer peripheral portion of the pipe P, and the longitudinal length N2 is brought into contact with the end portion of the elbow L. The posture of the elbow L is adjusted so that there is no gap between the length N2 and the end of the elbow L, taking care not to open a gap between the length N1 and the outer peripheral portion of the pipe P. In a state where a gap is not opened between the longitudinal N1 and the outer peripheral portion of the pipe P and a gap is not opened between the longitudinal N2 and the end of the elbow L, the axis J of the pipe P and the end of the elbow L The part becomes parallel. The elbow L is welded to the pipe P while maintaining this state. In this way, the elbow L can be accurately attached to the pipe P with a simple operation.

The embodiment of the present invention has been described in detail above. However, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change without departing from the gist of the present invention. included.
For example, in the above embodiment, the piping used for equipment piping in a plant piping or a factory is shown, but the present invention is not limited to this, for example, a rectangular flat plate is attached to a columnar material such as a building material, etc. Applicable to.

  The present invention is applicable to the tool manufacturing industry.

DESCRIPTION OF SYMBOLS 1 ... Measuring aid for curved measures 3 ... Main-body part 5 ... Contact part 7 ... Left side part 9 ... Right side part 11 ... Groove 13 ... Bottom face 15, 17 ... Inner side surface 19 ... Upper side wall part 20 ... Lower side wall part 21 ... Female screw Hole 23 ... Fixing screw 25 ... Hole 51 ... Measurement measuring instrument 53 ... Main body part 55 ... Upper part 57 ... Center part 59 ... Lower part 61 ... Left part 63 ... Right part 71 ... Groove 73 ... Bottom surface 75, 77 ... Inner side surface 79 ... left side wall part 81 ... right side wall part 83 ... female screw hole 85 ... fixing screw 91 ... groove 93 ... bottom face 95, 97 ... inner side surface 99 ... upper side wall part 101 ... lower side wall part 103 ... female screw hole 105 ... fixing screw F ... Flange Fa ... Mating surfaces P, P1, P2 ... Pipe J, J1, J2 ... Axis K, K1, K2 ... Turn length N, N1, N2 ... Long T, T1, T2 ... Wife L ... Elbow H ... Plate

Claims (4)

  It comprises a main body part, an abutting part provided on the main body part, and fixing means for attaching the main body part to a curved scale. When the main body part is fixed to the length of the curved scale by the fixing means, the abutting part is curved. A measuring aid for measuring tape characterized by being parallel to the longitudinal direction.   2. The measuring instrument for measuring a curved line according to claim 1, wherein the fixing means includes a groove formed in the main body part into which the length of the curved line is inserted, and a fixing screw that is provided in the main body part and presses a long side surface of the curved line fitted in the groove. It is comprised by these, and the measurement auxiliary tool for music tapes characterized by the above-mentioned. The measuring instrument for measuring a curved line according to claim 1 or 2, wherein the main body part is provided with a side part that is parallel to the wife's handle when the main body part is fixed to the longitudinal length of the curved line by a fixing means. Characteristic measuring instrument for measuring tape. 4. The measuring instrument for measuring a curved line according to claim 1, wherein when the main body is fixed to the two curved lines by the fixing means, the two curved lines are perpendicular to each other, and the side surface of one of the curved lines is abutting part. A measuring aid for a music scale characterized by being used as:

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