JPH0749365Y2 - Centering scale - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION This invention indicates the midpoint of a predetermined size with one edge of the member to be centered as one end, for example, when the midpoint in the width direction of the H-section steel is indicated. Centering scale used to

[0002]

2. Description of the Related Art Conventionally, when determining the midpoint in the width direction of a flange of H-section steel, one side 101 of a curved scale 100 is set to a side edge of a flange 111 of H-section steel 110 as shown in FIG. 1
11a and the other side 102 against the surface 111b of the flange 111, the flange width W of the H-section steel 110.
The midpoint W / 2 was calculated and read by the scale provided on the side 102 of the curved scale 100, and the position was marked with a stone brush or the like.

[0003]

However, in such a conventional tape measure 100, the midpoint W / 2 of the flange width W is set.
Since it is necessary to calculate and read with the scale attached to the curved scale 100, there is a drawback that workability is poor. In addition, there is a possibility that a measurement person may cause a measurement error or a dimensional error.

An object of the present invention is to provide a centering scale which has good workability in centering an object to be centered such as H-section steel and which is less likely to cause measurement errors and dimensional errors by the operator. To do.

[0005]

A centering scale according to the present invention comprises a scale body, a slider, a fixing means, an abutting portion,
It is configured to include a size selection scale.

The scale main body is provided with a center indicating portion for indicating the midpoint of a predetermined size of the centering target member at one end. The slider has a scale pointer portion and is attached to the scale body slidably along the longitudinal direction thereof. The fixing means is for fixing the slider to the scale main body at a predetermined slide position, and the abutting portion is integrally formed with the slider, and the centering is performed on the inner side in the sliding direction with respect to the core indicating portion of the scale main body. It is brought into contact with one edge of the target member. Further, the size selection scale portion is formed on the scale body at a scale of 1/2 of the actual distance with respect to the origin formed on the scale body, and a size display portion for displaying main size dimensions is added. The origin is set so that the distance from the origin to the scale pointer portion of the slider is equal to the distance from the core indicating portion of the scale body to the contact portion.

[0007]

In the above-described centering scale, the scale pointer portion of the slider is aligned with one position of the size selecting scale portion so as to correspond to the size dimension of the centering target member. Then, with the slider fixed to the scale main body by the fixing means, if the abutting portion of the slider is brought into contact with one edge of the centering target member, the center indicating portion formed on the scale main body is subjected to the centering target. Indicate the midpoint that the member should seek.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an H-shaped steel centering scale will be described below with reference to the drawings. The centering scale 1 shown in FIG. 1 includes a scale body 2 and a slider 3, and the slider 3 is attached to the scale body 2 so as to be slidable along the longitudinal direction thereof. Slider 3
Is provided with a contact portion 4 and a fixing screw 5 as fixing means. As shown in FIGS. 1 and 3, the contact portion 4 is integrally formed on the end portion of the slider 3 and projects on the side opposite to the scale body 2 and at a right angle to the sliding direction of the slider 3. The fixing screw 5 is for fixing the slider 3 to the scale main body 2 at a predetermined slide position, is screwed to the side portion of the slider 3, and its tip is pressed against the side edge of the scale main body 2. There is.

Further, one end surface of the slider 3 is provided with scale pointer portions 6a and 6b, and further, both sides of the slider 3 are provided with a finger pad with a slip stopper so that the user can easily slide the slider 3. 7, 7 are provided. In addition,
The contact surface 4a of the contact portion 4 and the scale pointer portion 6a of the slider 3,
6b is located on the same plane perpendicular to the sliding direction of the slider 3.

On the other hand, the scale main body 2 is shown in FIGS.
As shown in FIG. 5, it is a belt-shaped member having one end as the core indicating portion 8. As shown in FIGS. 4 and 6, the slider 3 is fitted into the scale main body 2 in its own shallow recess 3a, and the pressing plate 3b is fixed by screws 9 from above. In addition, as shown in FIG.
A file 10 for sharpening a stone brush or the like is formed on the back surface of the scale body 2. Further, as shown in FIGS. 1 and 2, the scale body 2 has an H-shaped steel size selection scale portion 11 on one long side and the other side. Ordinary scale portions 12 are attached to the long sides of the.

As shown in FIG. 2, the H-section steel size selection graduation portion 11 serves to selectively position the graduation pointer portion 6a of the slider 3 at a plurality of positions corresponding to the flange size dimensions of various H-section steels. In this embodiment, the H-section steel has a flange width (mm) of 30, 40, 50, 65 ...
In order to correspond to a total of 13 major flange sizes of 00, a scale line and a size display portion (dimension number) 13 are provided at 13 places. The size display portion 13 and the scale line are attached to the origin O located at the same position as the core indicating portion 8 of the scale main body 2 as a starting point and at a scale of 1/2 of the actual size. For example, the point labeled "100" is a point 50 mm in actual size from the origin O.

The normal scale portion 12 is used for centering an arbitrary H-section steel which is not in the main H-section steel size, and as shown in FIG. It is formed in parallel with the portion 11 and has a scale line in the actual size unit and a numeral 14 as a delimiter of the length provided every 50 mm with the origin O equal to the H-shaped steel size selection scale portion 11 as a reference.

In the centering scale 1 for H-section steel as described above, in order to obtain the midpoint of the flange of the main H-section steel size, as shown in FIG. In the portion 11, the scale pointer portion 6a of the slider 3 is aligned with the scale line corresponding to the flange size of the H-shaped steel. For example, if the midpoint of H-shaped steel with a flange width of 200 mm is to be obtained, "200" is displayed in the size display section 13.
The scale pointer portion 6a is positioned on the scale line marked with. Then, with the slider 3 fixed to the scale body 2 by the fixing screw 5, as shown in FIG.
The abutting surface 4a is brought into contact with the side edge 22 of the flange 21 of the H-shaped steel 20 which is a centering target member. As a result, the core indicating portion 8 of the scale body 2 is moved to the middle point W / 2 of the flange width W.
Is designated, the position of the midpoint may be marked with a stone brush or the like along the core designating portion 8.

Any H that does not exist in the major H-section steel sizes
When obtaining the midpoint of the shaped steel, as shown in FIG. 2, the graduation pointer portion 6b of the slider 3 corresponds to the midpoint W / 2 of the flange width W of the H shaped steel in the normal graduation portion 12. Align with the scale line. Then, after the slider 3 is fixed to the scale body 2 with the fixing screw 5, the H-shaped steel 2 shown in FIG.
When the contact surface 4a is brought into contact with the flange side edge 22 of 0, the center point W of the flange width W is set by the core indicating portion 8 of the scale body 2.
/ 2 can be obtained.

In place of the above embodiment, as shown in FIG. 8, the origin O of the H-shaped steel size selection scale 11 in the scale body 2 is formed by being displaced from the core indicating portion 8 by the dimension a1. The abutment surface 4a integral with the slider 3 can be formed at a position shifted to the side of the lead indicating portion 8 by the dimension a1. Nevertheless, the distance L from the origin O to the scale pointer portion 6a of the slider 3 and the contact point 4a from the core indicating portion 8
Is equal to the distance L to.

Further, in the H-shaped steel size selection scale portion 11, a moderation mechanism is provided corresponding to the scale lines corresponding to various H-shaped steel sizes, and the scale pointer portion 6a of the slider 3 is selectively applied to each scale line. And can be set easily.

Further, the normal graduation portion 12 may be formed with a scale of 1/2 of the actual size so that the midpoint of the flange can be obtained when the total length of the flange width of the H-section steel is indicated. It is also possible to omit the ordinary scale portion 12 and use only the H-shaped steel size selection scale portion 11.

In addition, it is needless to say that the present invention can be implemented in various modified forms based on the knowledge of those skilled in the art, such as being applicable to centering other than H-section steel.

[0019]

[Effect of the Invention] According to the centering scale according to the present invention,
At the size selection scale, fix the slider to the position corresponding to the size of the centering target member, and in that state, just touch the abutting part to one edge of the centering target member to easily and quickly set the midpoint. Can be instructed. Moreover,
Since the user does not have to calculate the midpoint size by only performing the slider alignment operation, centering errors are less likely to occur.

[Brief description of drawings]

FIG. 1 is a perspective view of an H-shaped steel centering scale according to an embodiment of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is a front view of FIG.

5 is a sectional view taken along line AA of FIG.

6 is a sectional view taken along line BB of FIG.

FIG. 7 is an explanatory view showing a usage state of the centering scale.

FIG. 8 is a side view schematically showing another embodiment of the present invention.

FIG. 9 is a perspective view of a conventional example.

[Explanation of symbols]

 1 Centering Scale 2 Scale Main Body 3 Slider 4 Abutment 5 Fixing Screw (Fixing Means) 6a, 6b Scale Pointer 8 Core Indicator 11 H-Shaped Steel Size Selection Scale (Size Selection Scale) 13 Size Display

Claims (1)

[Scope of utility model registration request] 1. A centering scale for designating a midpoint of a predetermined size dimension having one edge of a member to be centered as one end, wherein a center designating portion for designating the midpoint is formed at one end. A scale main body, a scale pointer, and a slider attached to the scale main body so as to be slidable along the longitudinal direction of the scale main body; fixing means for fixing the slider to the scale main body at a predetermined slide position; An abutment part formed integrally with the slider and abutting against one edge of the centering target member on the inner side in the sliding direction from the core designating part of the scale main body; and an origin formed on the main body of the scale main body. Is formed at a scale of ½ of the actual distance, a size display section for displaying the main size dimensions is added, and the pointer section of the slider from the origin is added. Centering scale, which comprises at a distance, a, and the size selection graduation the origin is set so that the distance and is equal to the contact portion from the core instruction section of the scale body.