JP2014035189A - Portable tester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable tester capable of illuminating surroundings of a prove electrode part in a simpler structure.SOLUTION: A portable tester 10 is provided so as to project from a top end of a pinching part 28 which can be pinched and carried by one hand. The portable tester 10 includes: a prove electrode part 30 making contact with a part to be inspected; a main body part 12 for measuring data of the part to be inspected by a signal from the prove electrode part 30; and a prove cable 24a having a lead wirer 25 one side of which is connected to the prove electrode part 30 inside the pinching part 28 and the other side of which is extending toward the main body part 12 from the base end side of the pinching part 28. The pinching part 28 is provided with a light 34 illuminating surroundings of the prove electrode part 30, a switch 36 for switching the lighting or putting-out of the lighting of the light 34, and a battery 38 for supplying power to the light 34.

Description

  The present invention relates to a portable tester.

  Conventionally, users such as workers have measured data of various devices using a portable tester. For example, the data output from each terminal of the control panel that controls the entire elevator using a portable tester may be measured, and the control panel is installed in the pit on the lowest floor of the hoistway, for example. , Workers need to work in the dark. For this reason, in order to make the probe electrode part of a portable tester contact each terminal of the control board which is a to-be-inspected part correctly, it is desirable that it can work in the state where the circumference | surroundings of the probe electrode part were illuminated.

  As a technique related to the present invention, for example, Patent Document 1 discloses that one side is in accordance with an input situation from a one-side probe for measurement and a specific function input key for operating a preset specific operation function. A portable tester body comprising at least a light that can freely irradiate irradiation light toward the contact end of the probe, and a display unit for displaying measurement values, and a lead wire from the portable tester body via a lead wire There is disclosed a portable tester with a light that includes the pulled-out other probe for measurement.

  Here, the specific function input key keeps the current state at the time of starting input, starts the operation of the specific operation function according to the input, and turns on the light when the input continuation state has elapsed for a predetermined time. When the specific operation function that is currently in operation is canceled and the input from the specific function input key is entered for the first time, the current state is reproduced on the display, and the light is turned on for a certain period of time without being operated. It is described that it is characterized in that automatic turn-off is freely arranged.

Japanese Patent No. 4282274

  According to the configuration of Patent Document 1, the work can be performed in a state where the periphery of the probe electrode portion is illuminated. However, since the configuration of Patent Document 1 has a complicated configuration in order to realize a complicated function such as a measured value hold function, it has labor to understand the operation procedure and is easy to use. There was a problem of being bad.

  The objective of this invention is providing the portable tester which can illuminate the circumference | surroundings of a probe electrode part by simpler structure.

  A portable tester according to the present invention is provided so as to protrude from the tip of a clamping part that can be held by a user's hand, and is in contact with a part to be inspected, and a signal from the probe electrode part A main body portion for measuring data of the inspected portion, and the probe electrode portion and one side are connected in the clamping portion, and extend from the proximal end side of the clamping portion toward the main body portion, and the main body portion and the other A probe cable having a lead wire connected to the side, a light that illuminates the periphery of the probe electrode unit, a switch that switches on or off the light, and a battery that supplies power to the light are provided in the clamping unit It is characterized by being.

  Further, in the portable tester according to the present invention, the light is provided at a distal end side of the clamping part, the switch is provided at a central part of the clamping part, and the battery is provided at a proximal end side of the clamping part. It is preferable to be provided.

  In the portable tester according to the present invention, the portable tester includes an attachment portion for attaching the light, the switch, and the battery to the sandwiching portion, and the attachment portion includes an extending portion that extends along a longitudinal direction of the sandwiching portion. And an enclosing portion that is provided on a distal end side of the clamping portion of the extending portion and surrounds the probe electrode portion in a circumferential direction, the light is provided in the enclosing portion, and the switch and the battery are It is preferable to be provided in the extending portion.

  In the portable tester according to the present invention, it is preferable that a plurality of the lights are provided side by side along the circumferential direction in the surrounding portion.

  In the portable tester according to the present invention, it is preferable that the extending portion has a shape along the outer shape of the clamping portion.

  In the portable tester according to the present invention, the light is preferably a light emitting diode.

  According to the present invention, since the surroundings of the probe electrode unit can be illuminated by providing the light, the switch, and the battery in the holding unit that can be held by the user's hand, the probe electrode unit is used as the part to be inspected. Can be contacted accurately. Further, according to the present invention, it is possible to illuminate the periphery of the probe electrode portion with a simple configuration in which the light, the switch, and the battery are provided in the holding portion as described above.

In embodiment which concerns on this invention, it is a figure which shows a portable tester. In embodiment which concerns on this invention, in a portable tester, it is a figure which shows the connection relation of a power supply circuit part and a test lead part. In embodiment which concerns on this invention, it is a figure which shows a mode that the attachment part and the clamping part are isolate | separated. In embodiment which concerns on this invention, it is a figure which shows a mode that the attachment part was attached to the clamping part. In embodiment which concerns on this invention, it is a figure which shows the modification of an attachment part.

  Embodiments of a portable tester according to the present invention will be described below in detail with reference to the accompanying drawings. In this description, specific shapes, materials, numerical values, directions, and the like are examples for facilitating the understanding of the present invention, and can be appropriately changed according to the application, purpose, specification, and the like.

  FIG. 1 is a view showing a portable tester 10. FIG. 2 is a diagram illustrating a connection relationship between the electric circuit unit 20 and the test lead unit 14 in the portable tester 10. The portable tester 10 includes a main body part 12, a pair of test lead parts 14 extending from the main body part 12, and an attachment part 31. In addition, the attachment part 31 is abbreviate | omitted in FIG.

  On the surface of the main body 12, a “POWER” button 15 for “ON” or “OFF” the power of the main body 12 and mode setting buttons 16 a to 16 e assigned for each measurement mode for switching the measurement mode. And a digital display unit 18 composed of an LCD (liquid crystal display) for displaying the measurement results. An electric circuit unit 20 is incorporated in the main body unit 12.

  The mode setting buttons 16a to 16e are respectively an “ACV” button 16a for measuring AC (alternating current) voltage, a “DCV” button 16b for measuring DC (direct current) voltage, and an “A” button 16c for measuring current. , “Ω” button 16d for resistance measurement, and “continuity check” button 16e for continuity check.

  In the portable tester 10, when a user such as an operator uses the portable tester 10, first, a “POWER” button 15, which is a power switch provided in the main body 12, is pressed to turn on the portable tester 10.

  Next, the measurement mode is set by pressing a desired button switch among the plurality of buttons 16 a to 16 e provided on the main body 12. For example, the DC (direct current) voltage can be measured by pressing the “DCV” button 16b.

  Further, for example, when measurement of electrical resistance is required, the measurement mode is switched from the previous setting by pressing the “Ω” button 16d for resistance measurement, thereby enabling measurement of electrical resistance. .

  The electric circuit unit 20 measures the voltage, current, electric resistance, and the like of the object to be inspected by a signal from the test lead unit 14, and displays the result on the digital display unit 18, and mode setting buttons 16a to 16e. And a mode setting circuit 24 for transmitting a mode setting signal to the measurement circuit 22 in response to the above operations.

  Each test lead portion 14 includes a probe cable 24a having one end connected to the electric circuit portion 20 of the main body portion 12, and a measurement probe 26 connected to the other end of the probe cable 24a.

  Note that the probe cable 24 a may be a connection terminal type that is detachably inserted into the electric circuit unit 20, or may be a fixed type that is fixedly connected to the electric circuit unit 20.

  The measurement probe 26 includes a clamping unit 28 that is held and operated by a user's hand, and a probe electrode unit 30. The sandwiching portion 28 has a cylindrical shape having a thickness that is easily gripped by a user's hand. The probe electrode portion 30 is an electrode having a cylindrical shape protruding from the center of the circular surface on the distal end side of the sandwiching portion 28. The probe electrode unit 30 is electrically connected to the measurement circuit 22 of the electric circuit unit 20 through a lead wire 25 provided in the probe cable 24a. That is, one end of the lead wire 25 of the probe cable 24 a is connected to the probe electrode unit 30, and the other end is connected to the measurement circuit 22 of the electric circuit unit 20.

  FIG. 3 is a diagram illustrating a state where the clamping unit 28 and the attachment unit 31 attached to the clamping unit 28 are separated. FIG. 4 is a diagram illustrating a state in which the attachment unit 31 is attached to the sandwiching unit 28. The attachment unit 31 is an accessory including an attachment unit 32, a light 34, a switch 36, and a battery 38. The attachment portion 32 is a member for attaching the light 34, the switch 36, and the battery 38 to the sandwiching portion 28, and is configured using a resin material such as plastic. The attachment portion 32 includes an extending portion 40 extending along the longitudinal direction of the sandwiching portion 28, and a surrounding portion 42 provided on the distal end side of the sandwiching portion 28 in the extending portion 40 and surrounding the probe electrode portion 30 in the circumferential direction. .

  As shown in FIG. 3, the extending portion 40 has a shape along the curved shape of the sandwiching portion 28, and an extending portion 40 a extending along the longitudinal direction of the sandwiching portion 28, and a central portion of the extending portion 40 a And a pinching portion 40b extending from the base end portion in the circumferential direction of the pinching portion 28 and pinching the pinching portion 28.

  The surrounding portion 42 has a through hole 42a into which the probe electrode portion 30 can be inserted at the center thereof, and has a substantially disc shape. Inside the surrounding portion 42, the light 34 is enclosed so as to surround the through hole 42a. Are embedded.

  The light 34 is a small light that is attached to the distal end side of the sandwiching portion 28 and illuminates the periphery of the probe electrode portion 30. The light 34 is composed of a semiconductor element that emits light when a voltage is applied in the forward direction, and is composed of a light-emitting diode that achieves power saving and downsizing. The plurality of lights 34 are embedded around the through hole 42 a in the circumferential direction in the surrounding portion 42.

  The switch 36 is a small switch circuit that is provided at the center of the clamping unit 28 in the extending unit 40 and switches the light 34 on or off. For example, the switch 36 can be configured using a push button switch or a microswitch.

  The battery 38 is a button battery that is provided on the proximal end side of the sandwiching portion 28 in the extending portion 40 and supplies power to the light 34. The battery 38 can be configured using, for example, a lithium battery, an alkaline manganese battery, a silver oxide battery, an air zinc battery, a mercury battery, or the like. The light 34, the switch 36, and the battery 38 are electrically connected using conductive wires.

  Here, the attachment part 31 can be separated from the clamping part 28 as shown in FIG. 3, but the user attaches it to the clamping part 28 as shown in FIG. 4 as required. Can do. At this time, the probe electrode portion 30 is inserted into the through hole 42a of the surrounding portion 42, and the sandwiching portion 40b is fitted into the sandwiching portion 28 while the sandwiching portion 40b is opened to the outside, whereby the attachment portion 31 is completely attached.

  Next, the operation of the portable tester 10 having the above configuration will be described.

  A user such as an operator may measure data from each terminal of a control panel that controls the entire elevator using the portable tester 10, and the control panel is installed in a pit on the lowest floor of a hoistway, for example. If so, the worker needs to work in the dark. At this time, when the portable tester 10 is used, when the switch 36 is pressed when the probe unit 30 is brought into contact with the terminal of the control panel that is the part to be inspected by holding the holding part 28, the light 34 is turned on. The periphery of the probe electrode unit 30 is illuminated. Thereby, the operator can work in a bright state, and the probe electrode part can be brought into contact with the part to be inspected accurately.

  Further, the attachment part 31 of the portable tester 10 is an accessory having a simple configuration including only the attachment part 32, the light 34, the switch 36, and the battery 38. And this attachment part 31 has the advantage that it can attach easily not only to the clamping part 28 of the portable tester 10 of this embodiment but the clamping part of the conventional portable tester.

  Next, the attachment part 31a which is a modification of the attachment part 31 is demonstrated using FIG. FIG. 5 is a diagram illustrating a state where the attachment part 31a and the clamping part 28 are separated. Unlike the attachment part 31, the attachment part 31 a does not have a surrounding part 42. And the extending part 40 of the attachment part 31a is different from the attachment part 31, and has a substantially U-shaped cross section that follows the outer shape of the sandwiching part 28, and has an inner surface part having a large contact area with the sandwiching part 28. Have. The substantially U-shaped end portion is opened to the outside and fitted into the sandwiching portion 28 to be attached to the sandwiching portion 28, thereby having the same effect as the attachment portion 31 of the portable tester 10. In addition, when the fitting state to the clamping part 28 of the attachment part 31 is weak, it can also reinforce using members, such as a string and a rubber band, as needed.

  The present invention is not limited to the above-described embodiments and modifications, and various improvements and modifications can be made within the matters described in the claims of the present application and their equivalent scope.

  For example, the light 34, the switch 36, and the battery 38 have been described as being attached to the sandwiching unit 28 via the attachment unit 32, but the sandwiching unit 28 is used without using the attachment unit 32, for example, using an adhesive or the like. You may attach directly to.

  DESCRIPTION OF SYMBOLS 10 Portable tester, 12 Main body part, 14 Test lead part, 15 POWER button, 16a-16e Mode setting button, 18 Digital display part, 20 Electrical circuit part, 22 Measurement circuit, 24 Mode setting circuit, 24a Probe cable, 25 lead Wire, 26 measuring probe, 28 clamping part, 30 probe electrode part, 31, 31a attachment part, 32 mounting part, 34 light, 36 switch, 38 battery, 40 extension part, 40a extension part, 40b clamping part, 42 enclosing part.

Claims (6)

A probe electrode part that is provided so as to protrude from the tip of the clamping part that can be held by the user's hand, and that contacts the part to be inspected;
A main body for measuring data of the part to be inspected by a signal from the probe electrode part;
A probe cable having a lead wire connected to the probe electrode part and one side in the holding part, extending from the proximal end side of the holding part toward the main body part and connected to the main body part and the other side;
The portable tester characterized in that the sandwiching portion is provided with a light that illuminates the periphery of the probe electrode portion, a switch that switches on or off the light, and a battery that supplies power to the light. . The portable tester according to claim 1,
The light is provided on the front end side of the clamping part,
The switch is provided in a central portion of the clamping portion,
The portable battery tester according to claim 1, wherein the battery is provided on a proximal end side of the clamping portion. The portable tester according to claim 1 or 2,
An attachment portion for attaching the light, the switch and the battery to the clamping portion;
The mounting portion is
An extending portion extending along the longitudinal direction of the sandwiching portion;
A surrounding portion provided on a distal end side of the sandwiching portion of the extending portion, and surrounding the probe electrode portion in a circumferential direction;
Have
The light is provided in the enclosure;
The portable tester, wherein the switch and the battery are provided in the extending portion. The portable tester according to claim 3, wherein
A portable tester characterized in that a plurality of the lights are provided side by side along the circumferential direction in the enclosure. In the portable tester according to claim 3 or 4,
The extending portion has a shape along the outer shape of the sandwiching portion. The portable tester according to any one of claims 1 to 5,
The portable tester, wherein the light is a light emitting diode.

Images