JPH11173843A - Spirit level - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the magnetic part of a level to come into contact with a protruded shape as well as a flat surface and to enable a spirit level main boy to be unrockably fixed by its attracting action by providing a recessed groove at the bottom surface of the spirit level main body to come into contact with an object to be measured and providing the magnet parts at the groove edge parts of the recessed groove. SOLUTION: A recessed groove 3 is provided on the bottom surface 2 of the spirit level main body 1 to come into contact with an object to be measured, and magnet parts 5 are provided at groove edge parts 4 on both right and left sides of the recessed groove 3. In the case of bringing the bottom surface 2 of the spirit level main body 1 into contact with a circular object to be measured such as a tubular material, the protruded shape of the object to be measured is inserted into the recessed groove 3, and the groove edge parts 4 on both right and left sides of the recessed groove 3 come into contact with the object to be measured at two lines. Then the magnet parts 5 come into contact with the object to be measured, and the spirit level main body 1 is unrockably fixed to the object to be measured by the attracting action of the magnet parts 5. In addition, in the case of bringing the bottom surface 2 of the spirit level main body 1 into contact with an object to be measured such as a plate, the spirit level main body 1 is unrockably fixed to the object to be measured by the attracting action of the magnet parts 5. Therefore, practicability and workability are improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a level with a magnet.

[0002]

2. Description of the Related Art A flat bottom surface of a level body is brought into contact with a plane of an object to be measured such as a plate material to measure horizontality, verticality, inclination, etc. of the object to be measured. Some levelers are provided with a magnet portion on the bottom surface which is in contact with the plane of the object to be measured, and the leveler body is fixed to the object to be measured so as not to swing by the attraction of the magnet portion. It is configured to:

[0003] Some spirit levels have a concave groove on the bottom surface of the level main body. The convex shape of the object to be measured, such as a tube, is inserted into the concave groove to form the concave groove. The left and right groove edges are 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.

However, it is troublesome to keep the level main body pressed against the measured object by hand so as not to swing.

The present invention solves the above problems,
The magnet part can be abutted on both flat and convex shapes, and the level of the level body can be fixed to the object to be measured such as a plate material or the object to be measured such as a tube material by the attraction action of this magnet so as not to swing. The purpose is to provide a level with excellent practicality and workability.

[0006]

The gist of the present invention will be described with reference to the accompanying drawings.

This is a level for measuring the horizontality and the verticality of the object to be measured a. A concave groove 3 is provided in a bottom surface 2 of the level body 1 which is in contact with the object to be measured a. The present invention relates to a spirit level in which magnet portions 5 are provided on groove edges 4 on both sides.

The level according to claim 1, wherein the side edge corners (12) of the magnet part (5) substantially match the groove edges (4) of the concave groove (3). It is.

Further, the side edge corner portion 12 of the magnet portion 5 is configured to project slightly inward from the corner portion 6 of the groove edge portion 4 of the groove 3. Item 12 relates to the level of Item 1.

The level according to any one of claims 1 to 3, wherein the magnet portion (5) is formed in an elongated shape along the length direction of the concave groove (3). Things.

The level according to any one of claims 1 to 4, wherein the concave groove 3 is a V-shaped groove.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention (how to implement the invention) which is considered to be preferable will be described with reference to the drawings, showing its operation and effects.

Since the magnet portion 5 is provided at the groove edges 4 on both left and right sides of the concave groove 3, for example, the bottom surface 2 of the level body 1 is brought into contact with an arc-shaped measuring object a such as a tube. In this case, the convex shape of the DUT a is inserted into the groove 3 of the level main body 1, and the groove edges 4 on both the left and right sides of the groove 3 are inserted into the DUT a.
The main body 1 abuts on the measured object a due to the magnet part 5 provided on the groove edge part 4 abutting on the measured object a by the main line. It will be fixed to impossible.

Since the contact between the groove edge 4 and the magnet portion 5 and the arc-shaped measuring object a such as a pipe is a line, the groove edge 4
The magnet portion 5 can abut both the arc-shaped object a having a large diameter and the arc-shaped object a having a small diameter.

Further, since the left and right groove edges 4 of the concave groove 3 are located at the same level as the bottom surface 2 of the level body 1, the bottom surface 2 of the level body 1 is placed on the object to be measured a such as a plate. When the magnet part 5 is in contact with the object a, the magnet part 5 provided on the groove edge part 4 inevitably comes into contact with the measured object a.
The level body 1 is fixed to the object a so as not to swing.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

The level body 1 is provided with a scaled measuring unit 7 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 main body 1, and the measuring units 7 are provided in a positional relationship in which respective horizontal reference lines are at right angles to each other so that the horizontal and vertical It is configured so that the degree can be measured.

The level body 1 is provided with a flat bottom surface 2 which is in contact with the device under test a. The flat bottom surface 2 is parallel to a horizontal reference line of the two measuring sections 7. Alternatively, it is configured to be a vertical plane.

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 horizontal to the two measurement portions 7. It is constituted by two parallel lines that are parallel to the reference line or vertical lines.

In the present embodiment, the concave groove 3 is provided in the shape of a V-shaped groove, and the object to be measured is an arc-shaped object having a smaller width (= smaller diameter) than the magnet portions 5 on both right and left sides of the concave groove 3 (FIG. (Not shown) so that the left and right inclined walls 13 of the V groove of the level body 1 can be abutted.

A magnet portion 5 is provided on the left and right groove edges 4 of the groove 3.
Is provided.

The magnet portion 5 is constructed by fitting and fixing a permanent magnet plate 11 to 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.

The magnet section 5 is formed in an elongated shape along the length direction of the concave groove 3. Therefore, the magnet part 5
The contact line between the object and the object to be measured a becomes longer, and the position of the attraction action by the magnet portion 5 becomes longer, so that the level body 1 can be more securely fixed to the object to be measured non-swingably.

The side edge corner 12 of the magnet portion 5 (permanent magnet plate)
11) are formed so as to substantially coincide with the groove edge portions 4, and 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, a tube-like material is formed. Circular object to be measured a
The groove edge portion 4 and the magnet portion 5 are in contact with the object a
Will be easy to contact. The level body 1 shown in the figure has a pair of left and right magnet parts 5 on the left and right groove edges 4 of the concave groove 3.
However, when the overall length of the concave groove 3 is long (that is, when the level body 1 is long), it is provided at two or more positions in the longitudinal direction of the concave groove 3 so that the magnet portion 5 can be attracted. Should be increased.

In this embodiment, the side edge corners of the magnet portion 5 are used.
12 (the side edge corner of the permanent magnet plate 11) is the groove edge 4 of the groove 3
Are formed so as to slightly protrude from the corners 6 to the inside of the concave groove 3. Therefore, the magnet part 5 (permanent magnet plate 11) can be applied to both the workpiece a (see FIG. 3) such as a plate and the 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 can be sufficiently 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.

Reference numeral 14 denotes a hook for inserting a ring or the like used when carrying or storing the level body 1.

Since the present embodiment is constructed as described above, the bottom surface 2 of the level body 1 is formed into an arc-shaped object a such as a tube.
When the object a is measured,
And the groove edges 4 on both the left and right sides of the concave groove 3 abut against the object a with two lines, and the magnet part 5 provided on the groove edge 4 is inevitably measured. The level body 1 is fixed to the measured object a so as not to swing by the attraction action of the magnet portion 5 while being in contact with the object a. Since the bottom surface 2 of the level body 1 is also flush with the bottom surface 2 of the level body 1, 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 bottom surface 2 is necessarily provided at the groove edge 4. The magnet part 5 is brought into contact with the object a, and the level body 1 is fixed to the object a so as not to swing by the attraction action of the magnet part 5, so that the level of the object Thing a
In addition, the level can be fixed to the object a to be measured such as a tube material so as not to swing, and the level is excellent in practicality and workability.

Further, since the side edge corners 12 of the magnet portion 5 abut against the arc-shaped measured object a such as a tube, the magnet portion 5 can be applied to the arc-shaped measured object a having a large diameter. A level excellent in practicability and workability, which is in contact with the arc-shaped measured object a having a small diameter dimension and is securely fixed by the attracting action of the magnet portion 5, is obtained.

[0029]

Since the present invention is constructed as described above, the simple construction in which the concave groove and the magnet portion are arranged in an optimal positional relationship on the bottom surface of the level body which comes into contact with the object to be measured, enables the plate material to be formed. The magnet part abuts both the object to be measured and the arc-shaped object to be measured, such as a tube, and the level of the level body is securely fixed to the object to be measured by the attraction action of the magnet part. It is a practical level that can measure the level and has excellent workability.

According to the second aspect of 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 level of the object to be measured in an arc shape such as a tube material can be improved. When the bottom surface of the container body is brought into contact, both the magnet portion and the groove edge of the concave groove surely come into contact with the object to be measured, so that the effect of the invention described in claim 1 can be more reliably achieved. It becomes a spirit level excellent in sex.

According to the third 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, a circle like a tube material is formed. When the bottom surface of the level body abuts against the arc-shaped object to be measured, the magnet portion contacts the object to be measured very surely irrespective of a design dimensional error or the like. It is a level that is more practical than ever.

According to the fourth aspect of 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 longer, and the magnet portion is inevitably increased. In this way, the level of the attracting action by the magnet part becomes longer, and the level body can be fixed to the object to be measured more securely so as not to swing.

According to the fifth aspect of the present invention, the concave groove is V
Since the groove is configured, the inclined wall of the V-groove can contact the object to be measured having a smaller diameter than the gap between the groove edges on both the left and right sides of the concave groove so that the level body can be fixed so as not to swing. It becomes a level that is more practical than it becomes.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of this 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 main body 1 according to the present embodiment is in contact with 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 main 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 sectional side view showing a case in which the level body 1 according to the present embodiment abuts on an arc-shaped measurement object a having a small diameter such as a tube material.

[Explanation of symbols]

 a DUT 1 object level 2 contact part 3 concave groove 4 groove edge 5 magnet part 6 corner 12 side edge corner

Claims (5)

[Claims] 1. A level for measuring the horizontality, verticality, etc. of an object to be measured, wherein a level groove is provided on a bottom surface of the level body in contact with the level to be measured, and groove edges on both left and right sides of the groove. A spirit level provided with a magnet section in the section. 2. The level according to claim 1, wherein a corner of a side edge of the magnet portion is substantially coincident with a groove edge of the concave groove. 3. The level according to claim 1, wherein a corner of a side edge of the magnet portion is configured to protrude slightly inside a groove from a corner of a groove edge of the groove. . 4. The device according to claim 1, wherein the magnet portion is formed in an elongated shape along a length direction of the groove.
The level according to any one of claims 1 to 3. 5. The level according to claim 1, wherein the concave groove is a V-shaped groove.