JP2601785Y2 - Windshield swing - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a windshield that accommodates a weight and a thread in a case so as not to be affected by wind when measuring the verticality of a column or a frame outside.

[0002]

2. Description of the Related Art FIG. 2 shows this type of windshield swing. (1) is a rectangular cylindrical case, and this case (1)
A vertical measurement thread (2) and a weight (3) suspended by the thread (2) are accommodated therein so as to be prevented from swaying by wind at the time of measurement. At the upper and lower ends of the case (1), U-shaped cross-section frames (4) and (4) mounted so as to protrude to the sides of the case (1) respectively include both sides of the case (1). Are fitted with short round bar-shaped magnets (5), (5). These magnets (5) (5) are magnetically attached to the measurement surface (6) whose vertical is to be measured as shown in the figure. The verticality is confirmed by visually recognizing the position of the thread (2) or the weight (3) through the windows (7) and (8) formed at the lower end side of ()).

[0003]

As described above, the case (1) can be arbitrarily fixed to the measurement surface (6) by the magnets (5) (5).
There is an advantage in that it is not necessary to support by hand, and measurement can be performed easily and accurately. However, there is a disadvantage that the magnetic force of the magnets (5) (5) not only acts on the measuring surface (6) but also acts on the weight (3) inside the case (1). That is, conventionally, since the weight (3) is made of iron, as shown in FIG. 3, the weight (3) is attracted to one magnet (5) and remains attached to the inner surface of the case (1). May be. Therefore, there is an inconvenience that when the state shown in this figure is reached, it is difficult to know whether the object is attracted to the magnet (5) or the measuring surface (6) is so inclined. Was.

[0004] This invention eliminates the drawbacks of the conventional windshield-type swinging motion, and prevents the weight from being affected by a magnet for mounting the case on the measurement surface, so that the vertical position is always accurate. The purpose is to enable measurement.

[0005]

In order to solve the above-mentioned problems, in the present invention, a weight and a thread for suspending the weight are accommodated in a case and are attached to a measurement surface or the like outside the case. In a windshield with a magnet ,
Therefore, the weight, which is the entire suspended portion, is formed of stainless steel or other material that is not attracted to the magnet.

In the invention of claim 2 of the present application, the overall shape of the weight is a slightly elongated column.

[0007]

According to the above arrangement, since the weight is not affected by the magnet, the weight always shows a correct position at the time of measurement, and accurate measurement can be performed.

[0008]

In FIG. 1, (11) is a weight of the present invention. As described above, in this embodiment, the weight (11) is made of stainless steel which is not affected by magnetic force. Magnet (5) attached to the lower end of case (1)
By (5), it is possible to always measure accurately without being sucked. The material which does not receive such magnetic force is not limited to stainless steel as long as it has a certain weight, and may be formed of lead or other materials.

Further, the weight (11) of this embodiment has a conical shape at the lower end as in the conventional example of FIG.
It is about 10 cm longer and heavier than the conventional one. This is because the larger the weight of the weight (11) is, the faster the shaking when installed can be stopped, thereby enabling quick measurement.

On the other hand, the sharp end of the tip as in the prior art is for the purpose of making it possible to measure even at the tip. However, the measurement is often performed at the yarn (2), and the sharp angle is used. It cuts straight without doing it and added weight. Therefore, the weight (11) of this embodiment
Has an elongated cylindrical shape as a whole.

[0011]

[Effect of the invention] As described above, in this invention, the thread
Since the weight, which is the entire part that can be suspended, is made of a material that is not attracted by magnets such as stainless steel,
The weight is attracted by the magnetic force of the magnet outside the case,
The inconvenience of sticking to the inner surface of the case as before
Therefore, there is an effect that accurate measurement can always be performed.

Further, since the weight of the weight is made large by making the weight a slightly elongated column, the swing of the weight at the time of installation is quickly stopped, and the effect of being able to measure quickly is obtained. is there.

[Brief description of the drawings]

FIG. 1 is a side view of a weight portion showing a case in a longitudinal direction in an embodiment of the present invention.

FIG. 2 is a perspective view showing a conventional example in which a windshield swing is installed.

FIG. 3 is a side view of a weight portion showing a case in a longitudinal direction in a conventional example.

[Explanation of symbols]

 (1) Case (3) Thread (5) Magnet (11) Weight

Claims (2)

(57) [Scope of request for utility model registration] 1. A housing and a string that suspends the weight and the weight in the case, and, in the windshield under vibration with a magnet for attaching to such measuring surface on the outside of the case, depending on the yarn
The weight, which is the entire part suspended and suspended, is formed of stainless steel or another material that is not attracted to the magnet. 2. The windshield according to claim 1, wherein the whole weight has a slightly elongated cylindrical shape.