JP3571894B2 - Level - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a level with a magnet.
[0002]
Problems to be solved by the prior art and the invention
A level that measures the horizontal, vertical, inclination, etc. of the DUT by contacting the flat bottom surface of the level body with the plane of the DUT, such as a plate, is used to measure the level of the DUT. In some cases, a magnet portion is provided on the bottom surface in contact therewith, and the level body is fixed to the object to be measured so as not to swing by the attraction of the magnet portion.
[0003]
Also, some spirit levels have a groove on the bottom of the level body, and by inserting the convex shape of the DUT, such as a tube, into the groove, the left and right sides of the groove are provided. The groove edge is brought into contact with the object to be measured by two lines, and the level main body is pressed against the object to be measured by hand and can be fixed so as not to swing.
[0004]
However, it is troublesome to keep pressing the level body by hand so as not to swing against the object to be measured.
[0005]
The present invention solves the above-mentioned problems, and a magnet portion can be brought into contact with both a flat surface and a convex shape. An object of the present invention is to provide a level that can fix the main body of the level to a measured object so as not to swing, and is excellent in practicality and workability.
[0006]
[Means for Solving the Problems]
The gist of the present invention will be described with reference to the accompanying drawings.
[0007]
A level for measuring the horizontality, verticality, etc. of an object a to be measured, wherein a groove 3 is provided on a bottom surface 2 of the level body 1 which is in contact with the object a, and grooves on both left and right sides of the groove 3 are provided. A magnet portion 5 is provided by fitting and fixing a magnet 11 in a fitting portion 10 provided in the edge portion 4. The magnet portion 5 is formed in an elongated shape along the length direction of the concave groove 3, and the magnet portion 5 is formed. A level according to the present invention is characterized in that the side edge corners 12 of the magnet 11 constituting the magnet 5 substantially match the groove edge 4 of the concave groove 3.
[0008]
Also, a level for measuring the horizontality, verticality, etc. of the object a, which is provided with a concave groove 3 on a bottom surface 2 of the level main body 1 in contact with the object a, A magnet portion 5 is provided by fitting and fixing a magnet 11 in a fitting portion 10 provided in a groove edge portion 4 of the groove . The magnet portion 5 is formed in an elongated shape along the length direction of the concave groove 3, and A side level corner 12 of the magnet 11 constituting the magnet portion 5 is configured to protrude slightly inside the groove 3 from the corner 6 of the groove edge 4 of the groove 3. It is related to.
[0009]
Also, the concave groove 3 is a V-groove according to any one of claims 1 and 2,
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
A preferred embodiment of the present invention (how to carry out the invention) will be described with reference to the drawings, showing its operation and effects.
[0011]
Since the magnet portion 5 is provided at the groove edges 4 on both the left and right sides of the concave groove 3, for example, when the bottom surface 2 of the level body 1 is brought into contact with an arc-shaped measured object a such as a tube material, The convex shape of the object to be measured a is inserted into the concave groove 3 of the level body 1, and the groove edges 4 on both left and right sides of the concave groove 3 abut against the object to be measured a by two lines. The magnet part 5 provided on the edge part 4 abuts on the measured object a, and the level body 1 is fixed to the measured object a so as not to swing by the attraction action of the magnet part 5.
[0012]
Since the contact between the groove edge 4 and the magnet part 5 and the arc-shaped measurement object a such as a tube is a line, the groove edge 4 and the magnet part 5 have a large diameter. Both the object to be measured a and the to-be-measured object a having a small diameter can be contacted.
[0013]
Also, since the groove edges 4 on both the left and right sides of the concave groove 3 are also at positions flush with the bottom surface 2 of the level body 1, the bottom surface 2 of the level body 1 is brought into contact with the measured object a such as a plate material. In this case, the magnet part 5 provided on the groove edge part 4 necessarily comes into contact with the measured object a, and the level body 1 cannot swing on the measured object a due to the attracting action of the magnet part 5. Will be fixed to.
[0014]
【Example】
A specific embodiment of the present invention will be described with reference to the drawings.
[0015]
The level body 1 is provided with a measuring unit 7 with scales for measuring horizontality, verticality, inclination, and the like. The measuring unit 7 is filled with liquid and air bubbles. In this embodiment, two measuring units 7 are provided on the level body 1, and the measuring units 7 are provided so that their horizontal reference lines are at right angles to each other so that the horizontality and the vertical It is configured to measure the degree.
[0016]
Further, the level body 1 is provided with a flat bottom surface 2 which is in contact with the device under test a, and the flat bottom surface 2 is parallel or vertical to the horizontal reference line of the two measuring sections 7. It is configured so that
[0017]
A groove 3 is provided on the bottom surface 2 so as to cross the center of the bottom surface 2, and groove edges 4 on both left and right sides of the groove 3 are aligned with the horizontal reference lines of the two measurement units 7. It is composed of two parallel lines that are parallel lines or vertical lines.
[0018]
Further, in the present embodiment, the concave groove 3 is provided in a V-groove shape, and an arc-shaped measurement object (not shown) having a width (smaller diameter) narrower than the magnet portions 5 on both right and left sides of the concave groove 3. It is configured such that the left and right inclined walls 13 of the V-groove of the level main body 1 can be brought into contact with the lower level.
[0019]
Magnet portions 5 are provided on groove edges 4 on both the left and right sides of the concave groove 3.
[0020]
The magnet portion 5 is configured such that a permanent magnet plate 11 is fitted and fixed in fitting portions 10 provided on groove edges 4 on both left and right sides of the concave groove 3. Therefore, the magnet portion 5 can be provided so that the bottom surface 2 of the level body 1 and the permanent magnet plate 11 are flush with each other.
[0021]
The magnet 5 is formed in an elongated shape along the length direction of the concave groove 3. Therefore, the contact line between the magnet part 5 and the object a becomes longer, the place of the attraction action by the magnet part 5 becomes longer, and the level body 1 can be more securely fixed to the object a so as not to swing. .
[0022]
Also, the side edge corner 12 of the magnet portion 5 (side edge corner of the permanent magnet plate 11) is configured to substantially match the groove edge 4, and the bottom surface 2 of the level body 1 is formed like a plate material. The groove edge portion 4 and the magnet portion 5 can easily come into contact with the measured object a both when contacting the measured object a and the arc-shaped measured object a such as a tube material. The illustrated level body 1 is provided with a pair of left and right magnet portions 5 at the groove edges 4 on both the left and right sides of the groove 3. However, when the total length of the groove 3 is long (that is, In the case where the main body 1 is long, it is preferable to provide at two or more locations in the longitudinal direction of the concave groove 3 to increase the number of locations where the magnet portion 5 is attracted.
[0023]
Further, in this embodiment, the side edge corners 12 of the magnet portion 5 (side edge corners of the permanent magnet plate 11) protrude slightly inside the groove 3 from the corners 6 of the groove edge 4 of the groove 3. It is configured as follows. Therefore, the magnet portion 5 (permanent magnet plate 11) can be used for both a workpiece a (see FIG. 3) such as a plate material and an arc-shaped workpiece a having a large diameter such as a tube (see FIG. 4). The object to be measured a having an arc shape having a small diameter (see FIG. 5) is surely brought into contact with the left and right pair, so that the attraction action of the magnet portion 5 is favorably exhibited. In addition, the corner 12 of the magnet 5 may be ground by grinding or the like so that the corner 12 of the magnet 5 and the corner 6 of the groove edge 4 of the concave groove 3 completely match. it can.
[0024]
Reference numeral 14 denotes a hook for inserting a ring or the like used when carrying or storing the level main body 1.
[0025]
Since the present embodiment is configured as described above, when the bottom surface 2 of the level body 1 is brought into contact with the arc-shaped measured object a such as a tube, the measured object is inserted into the concave groove 3 of the level body 1. a is inserted, and the groove edges 4 on both the left and right sides of the concave groove 3 abut on the measured object a with two lines, and the magnet 5 provided on the groove edge 4 is inevitably covered. The level body 1 is fixed to the measured object a so as to be unswingable by the attraction action of the magnet portion 5 while being in contact with the measured object a. Is also at a position flush with the bottom surface 2 of the level body 1, so that when the bottom surface 2 of the level body 1 is brought into contact with an object a to be measured such as a plate material, The provided magnet part 5 abuts on the measured object a, and the level body 1 is fixed to the measured object a in a non-swinging manner by the attracting action of the magnet part 5, Utility of the level body 1 to the measuring object a, such as a well tubing to the measurement object a, such as wood can be non-pivoting fixed, a su a spirit level workability.
[0026]
Further, since the side edge corners 12 of the magnet portion 5 abut against the arc-shaped measured object a such as a tube material by a line, the magnet portion 5 also has a large-diameter arc-shaped measured object a. The level is excellent in practicality and workability, which is also in contact with the small arc-shaped measured object a and is securely fixed by the attraction action of the magnet portion 5.
[0027]
【The invention's effect】
Since the present invention is configured as described above, a simple configuration in which the concave groove and the magnet portion are arranged in an optimal positional relationship on the bottom surface of the level body abutting on the measured object, the measured object such as a plate material. The magnet part abuts against the arc-shaped measuring object such as the tube material, and the level of the level can be measured by firmly fixing the level body to the measuring object by the attraction action of the magnet part. It is a level with excellent practicality and workability.
[0028]
Further, according to the present invention, since the side edge corners of the magnet portion are configured to substantially coincide with the groove edges of the concave groove, the bottom surface of the level body is applied to an arc-shaped measured object such as a tube. In the case of contact, both the magnet portion and the groove edge of the concave groove surely come into contact with the object to be measured, and the level becomes more practical.
[0029]
Further, according to the present invention, since the magnet portion is formed in an elongated shape along the length direction of the concave groove, the contact line between the magnet portion and the object to be measured becomes long, and the magnet portion is inevitably attracted by the magnet portion. The action point becomes longer, and the level body can be more securely non-pivotally fixed to the object to be measured.
[0030]
According to the second aspect of the present invention, since the side edge corner of the magnet portion is configured to protrude slightly inward from the corner of the groove edge of the groove, an arc-like shape like a tube material is formed. When the bottom of the level body abuts against the DUT, the magnet part will contact the DUT very surely regardless of design dimensional errors, etc. Become.
[0031]
According to the third aspect of the present invention, since the concave groove is formed as a V-groove, the V-groove can be inclined even on an arc-shaped measured object having a smaller diameter than between the groove edges on the left and right sides of the concave groove. The level is more practical than the wall comes into contact with, and the level body can be fixed so as not to swing.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view of the present embodiment.
FIG. 2 is an explanatory front view of the present embodiment.
FIG. 3 is an explanatory side sectional view showing a case where the level body 1 according to the present embodiment abuts on an object a to be measured such as a plate material.
FIG. 4 is an explanatory side sectional view showing a case where the level body 1 according to the present embodiment is in contact with an arc-shaped measured object a having a large diameter such as a tube material.
FIG. 5 is an explanatory side sectional view showing a case where the level body 1 according to the present embodiment is brought into contact with an arc-shaped measured object a having a small diameter such as a tube material.
[Explanation of symbols]
a DUT 1 Level body 2 Contact part 3 Concave groove 4 Groove edge 5 Magnet 6 Corner
10 fitting part
11 magnet 12 side edge corner

Claims (3)

A spirit level for measuring the like horizontality and perpendicularity of the object to be measured, a groove provided in contact with the bottom surface and the object to be measured of the level body, provided on a groove edge portion of the left and right sides of the groove fitting A magnet portion formed by inserting and fixing a magnet in the portion is provided. The magnet portion is formed in an elongated shape along the length direction of the concave groove, and a side edge corner of the magnet constituting the magnet portion has the concave portion. A level that is configured to substantially match a groove edge of the groove. A spirit level for measuring the like horizontality and perpendicularity of the object to be measured, a groove provided in contact with the bottom surface and the object to be measured of the level body, provided on a groove edge portion of the left and right sides of the groove fitting A magnet portion formed by inserting and fixing a magnet in the portion is provided. The magnet portion is formed in an elongated shape along the length direction of the concave groove, and a side edge corner of the magnet constituting the magnet portion has the concave portion. A level that is configured to protrude slightly inward from the corner of the groove edge of the groove. The level according to claim 1, wherein the concave groove is a V groove.

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