JP2016095187A - Electric tester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric tester capable of recording a measurement result on a sheet while taking measurements.SOLUTION: An electric tester 10 comprises a measuring instrument body 1, a first test lead wire 21r, and a second lead wire 22r. Further, the electric tester 10 comprises a first test terminal 21t and a second test terminal 22t. Furthermore, the electric tester 10 comprises a wrist band 3 and a finger band 4. The measuring instrument body 1 can be put on one wrist Wr, and the first test terminal 21t can be put on a finger F beyond the wrist Wr. The second test terminal 22t is composed of an alligator clip. With a part of an object B to be measured held by the second test terminal 22t, the object B to be measured can be measured by bringing a contact pin 21p mounted on the one hand H into contact with the body B to be measured. While the object B to be measured is measured by the one hand H, a writing tool Pe is gripped in the other free hand and a measurement result can be recorded on a sheet P.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electrical tester. In particular, the present invention relates to a structure of a handy type electric tester capable of recording a measurement result on a sheet while measuring voltage or current.

  In order to maintain and inspect electrical equipment, the office measures the voltage and current of the electrical equipment using an analog tester or digital tester that is convenient to carry. The analog tester displays the measured value in an analog manner by an indicator arranged in the measuring instrument body. The digital tester converts the measured value from analog to digital and displays it numerically on a display arranged in the measuring instrument body.

  In general, a circuit meter (hereinafter referred to as an electric tester) such as an analog tester or a digital tester includes a set of test lead bars that can be connected to a measurement terminal provided in a measuring instrument body. The test lead bar extends the test lead wire. The measuring instrument body and the test lead rod can be connected with a test lead wire. And the voltage etc. are measured by making the contact pin provided in the front-end | tip part of these test lead rods contact a measuring object.

  A tip tool is used when winding a winding binding around an electric wire or when removing a winding binding from an electric wire. The tip tool is attached to the tip of the insulating operation rod. Insulating operation rods are suitable for indirect hot-line construction in which electrical work is performed in an uninterrupted state.

  By the way, when measuring the voltage, current, and the like of an electric device, both hands are blocked because it is necessary to individually hold and operate a set of test lead bars. For this reason, the measuring instrument main body is placed on a work desk or floor near the measurement object, and the measurement work is performed.

  In such a work situation, there was a concern that the measuring instrument main body would fall from the work desk by being pulled by the test lead wire. Further, it is necessary to change the arrangement of the measuring instrument body each time the contact point of the test lead bar is changed.

  In order to eliminate such problems, an electric tester in which a wristband is provided on a handy type measuring instrument main body has been disclosed (for example, see Patent Document 1).

  The electric tester according to Patent Document 1 can move in a state where the measuring instrument main body is mounted on one arm and can hold the test lead rod with both hands, thereby eliminating the risk of damaging the measuring instrument main body.

  Further, in the work situation as described above, for example, when changing the measurement range, it is necessary to release the test lead bar held by one hand and operate the rotary switch provided in the measuring instrument main body. Thus, since the conventional electric tester needs to interrupt the measurement operation, there is a problem that the work efficiency is impaired and it is inconvenient.

  To eliminate such problems, it is expected that a set of test lead bars with test leads can be stored inside the main body of the measuring instrument when the electrical tester is not used, and that one hand is open, such as changing the measurement range. If one of the test lead rods is used, one test lead rod can be held on the measuring instrument body so that the contact pin protrudes, and the other test lead rod connected to the test lead wire extended from the measuring instrument main body can be held with one hand. An electric tester that can be used is disclosed (for example, see Patent Document 2).

  The electric tester according to Patent Document 2 is capable of performing a necessary operation using a vacant one hand, so that the measurement work can be performed efficiently and smoothly.

Japanese Utility Model Publication No. 63-200169 JP 2001-74773 A

  However, when measuring voltage or current using an electric tester, it may be necessary to record the measurement data or measurement results on a sheet at any time. In this case, since both hands are covered with the test lead bar, the measurement result is recorded by other personnel, or the measurement operation is interrupted and the measurement result is recorded on the paper by himself. For this reason, work efficiency is impaired and inconvenient.

  The electric tester according to Patent Document 1 does not worry about damaging the main body of the measuring instrument, but since both hands are closed with a test lead rod, it is difficult to record the measurement result on a sheet while measuring.

  Although the electrical tester according to Patent Document 2 is not explicitly described in the specification, it is assumed that one test lead bar held in the measuring instrument main body is brought into contact with a measurement object and measured.

  In order to record the measurement result on a sheet while measuring, the electric tester according to Patent Document 2 is required to hold the measuring instrument main body by other personnel. Although the direction which fixes a measuring device main body to the vicinity of a measuring object with an adhesive tape etc. is also considered, since a measuring device main body is attached or detached whenever a measuring object changes, there exists a problem of impairing work efficiency.

  From the above, there has been a demand for an electric tester with excellent work efficiency that can record the measurement results on paper while measuring. The above can be said to be the subject of the present invention.

  The present invention has been made in view of such problems, and an object of the present invention is to provide an electric tester with excellent work efficiency that can record the measurement result on a sheet while measuring.

  The inventors fixed the measuring instrument body to the wrist with a wristband, fixed one test terminal to a finger with a fingerband, and configured the other test terminal with a crocodile clip to measure while measuring Based on this, the inventors have invented the following new electric tester.

  (1) The electrical tester according to the present invention is a handy type electrical tester having a size that can be worn at least on the wrist, and includes a measuring instrument body having a pair of measuring terminals and one of the measuring terminals. A first test lead wire that can be connected, a second test lead wire that can be connected to the other measurement terminal, and a first test terminal that is provided at the tip of the first test lead wire and can contact a measurement object The measuring instrument body can be mounted on one wrist so that the second test terminal provided at the tip of the second test lead wire can contact the measurement object and the display surface of the measuring instrument body faces the outside. And a finger band for detachably fixing the first test terminal to a finger so that the first test lead wire passes from one wrist to the back of the hand. Strike pin has a contact pin projecting from the fingertip of one hand, the second test terminal is constituted by an alligator clip which can hold the part to be measured.

  (2) The first test lead wire and the second test lead wire are formed of spiral cords that are spirally wound and extendable in the longitudinal direction. In the extended state and the contracted state, the second test lead wire is It is preferable that the length is longer than that of the first test lead wire.

  (3) It is preferable that the measuring device main body is composed of an analog tester that displays the measured value in an analog manner.

  The electric tester according to the present invention can measure the measurement object continuously or intermittently by contacting the measurement object with a contact pin attached to one hand while holding a part of the measurement object between the second test terminals. Then, while measuring the measurement object with one hand H, the operator can hold the writing instrument with one free hand and record the measurement result on the paper.

It is a perspective view which shows the structure of the electric tester by one Embodiment of this invention. It is a top view which shows the structure of the electric tester by the said embodiment, and is the state figure which contacted the measuring object with the contact pin provided in the front-end | tip part of one 1st test terminal. It is a top view which shows the state which has recorded the measurement result on the paper with one vacant hand.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
[Configuration of electrical tester]
First, the configuration of an electric tester according to an embodiment of the present invention will be described.

  FIG. 1 is a perspective view showing a configuration of an electric tester according to an embodiment of the present invention. FIG. 2 is a plan view showing the configuration of the electric tester according to the embodiment, and is a state diagram in which a contact pin provided at the tip of one of the first test terminals is in contact with a measurement object. FIG. 3 is a plan view showing a state where a measurement result is recorded on a sheet with one free hand.

  Referring to FIG. 1 or FIG. 2, an electrical tester 10 according to an embodiment of the present invention includes a measuring instrument body 1, a first test lead wire 21r, and a second test lead wire 22r. The electrical tester 10 includes a first test terminal 21t and a second test terminal 22t. Further, the electric tester 10 includes a wrist band 3 and a finger band 4.

  Referring to FIG. 1 or FIG. 2, the measuring instrument main body 1 has a size that can be attached to the wrist Wr. The measuring instrument main body 1 has a pair of measuring terminals 1t and 1t. The first test lead wire 21r can be connected to one measurement terminal 1t. Similarly, the second test lead wire 22r can be connected to the other measurement terminal 1t.

  Referring to FIG. 1 or FIG. 2, the first test terminal 21t is provided at the tip of the first test lead wire 21r. The first test terminal 21t can contact the measurement object B such as a power bar (see FIG. 2). Similarly, the second test terminal 22t is provided at the tip of the second test lead wire 22r. The second test terminal 22t can contact the measurement object B such as a power bar (see FIG. 2).

  Referring to FIG. 1 or FIG. 2, the wristband 3 can fix the measuring device main body 1 to one wrist Wr so that the display surface of the measuring device main body 1 faces outside. The wristband 3 is preferably composed of a strip-shaped first surface fastener wound around one wrist Wr and a rectangular second surface fastener attached to the back surface of the measuring instrument main body 1. The container body 1 can be easily attached and detached. Further, the orientation of the measuring instrument main body 1 can be changed with respect to the wrist Wr.

  Referring to FIG. 1 or FIG. 2, the finger band 4 can fix the first test terminal 21t to the finger F so as to be freely attached. In this case, it is preferable to arrange the first test lead wire 21r so that the first test lead wire 21r passes through the back side of the hand H from one wrist Wr.

  With reference to FIG. 1 or FIG. 2, it is preferable that the finger band 4 is comprised by the strip | belt-shaped 3rd surface fastener from which one surface (front surface) and the other surface (back surface) can be mutually attached or detached. The first test terminal 21t can be fixed to the finger F by winding the finger band 4 around the finger F together with the first test terminal 21t and engaging the ends of the finger band 4 with each other. If the finger band 4 is loosened, the contact pin 21p can further protrude from the fingertip.

  Referring to FIG. 1 or FIG. 2, the first test terminal 21t has a contact pin 21p that protrudes from the fingertip of one hand H. On the other hand, the second test terminal 22t is constituted by a crocodile clip that can sandwich a part of the measuring object B.

  Referring to FIG. 1 or FIG. 2, the first test lead wire 21r is formed of a spiral cord that is spirally wound and expandable and contractable in the longitudinal direction. Similarly, the second test lead wire 22r is formed of a spiral cord that is spirally wound and expandable and contractable in the longitudinal direction. When the spiral cord is in the extended state and the contracted state, the second test lead wire 22r is configured to be longer than the first test lead wire 21r.

  With reference to FIG. 1 or FIG. 2, the electric tester 10 is preferably composed of an analog tester in which the measuring instrument main body 1 displays the measurement values in analog form. The measuring instrument main body 1 can use a commercially available custom analog tester whose outer dimensions are 100 mm (height) × 69 mm (width) × 32 mm (thickness), and has a size that can be attached to the wrist Wr. ing. It is preferable that the outer color of the measuring device main body 1 and the wristband 3 have different hues.

[Electric tester action]
Next, the operation and effect of the electric tester 10 according to the embodiment will be described. Referring to FIG. 1 or FIG. 2, the electric tester 10 can attach the measuring device main body 1 to one wrist Wr and can attach the first test terminal 21t to the finger F at the tip of the wrist Wr. In the electric tester 10, the second test terminal 22t is constituted by an alligator clip.

  With the above configuration, the contact pin 21p attached to the one hand H is brought into contact with the measurement target B in a state where a part of the measurement target B is sandwiched between the second test terminals 22t, and the measurement target B is continuously or intermittently provided. Can be measured. As shown in FIG. 2, while measuring the measurement object B with one hand H, as shown in FIG. 3, the worker M grasps the writing instrument Pe with the vacant one hand H and records the measurement result on the paper P. can do.

  Also, referring to FIG. 1 or FIG. 2, the electrical tester 10 includes a first test lead wire 21r and a second test lead wire 22r made of a stretchable spiral cord, and the second test lead wire 22r is subjected to a first test. It is longer than the lead wire 21r.

  With the above configuration, it is possible to prevent the first test lead wire 21r from drooping more than necessary between the finger F and the wrist Wr. Further, it is possible to prevent the second test lead wire 22r from drooping more than necessary between the measuring object B and the wrist Wr.

  Furthermore, referring to FIG. 1 or FIG. 2, since the electrical tester 10 is composed of an analog tester, it is easy to improve a minute error and observe the current at the time of inrush.

The electrical tester according to the present invention can be expected to have the following effects.
(1) Since measurement can be performed with one hand, the measurement result can be recorded with an available one hand. Thereby, working efficiency can be improved.
(2) Since the measuring instrument body can be fixed to the wrist, measurement can be performed while observing the measurement result.
(3) The measuring instrument body can be freely moved on the arm.
(4) Since the test lead wire is composed of a spiral cord, unnecessary sagging can be prevented and measurement work is not hindered.

DESCRIPTION OF SYMBOLS 1 Measuring device body 3 Wrist band 4 Finger band 10 Electrical tester 21r First test lead wire 21t First test terminal 22r Second test lead wire 22t Second test terminal (crocodile clip)

Claims (3)

It is a handy type electric tester that is at least large enough to be worn on the wrist,
A measuring instrument body having a set of measuring terminals;
A first test lead wire connectable to one of the measurement terminals;
A second test lead wire connectable to the other measurement terminal;
A first test terminal provided at a tip of the first test lead wire and capable of contacting an object to be measured;
A second test terminal provided at a tip of the second test lead wire and capable of contacting a measurement object;
A wristband for detachably fixing the measuring instrument body to one wrist so that the display surface of the measuring instrument body faces the outside;
A finger band for detachably fixing the first test terminal to a finger so that the first test lead wire passes from one wrist to the back side of the hand,
The first test terminal has a contact pin protruding from a fingertip of one hand,
The second test terminal is an electric tester configured with a crocodile clip that can hold a part of a measurement target. The first test lead wire and the second test lead wire are formed of a spiral cord that is wound in a spiral shape and is extendable in the longitudinal direction,
The electrical tester according to claim 1, wherein the second test lead wire is configured to be longer than the first test lead wire in the extended state and the contracted state.   The electric tester according to claim 1, wherein the measuring instrument main body includes an analog tester displaying the measured value in an analog manner.

Images