JPH0740218Y2 - Probe lead wire storage device for tester - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for accommodating a probe lead wire in a portable measuring instrument such as a tester.

[0002]

2. Description of the Related Art Conventionally, in a portable measuring instrument such as a handy tester, when a tester 31 is used, one end of a probe lead wire 32 is connected as shown in the front view of the conventional tester in FIG. Plug 33 into tester 3
1 is used by inserting it into any measuring terminal 34, and when the tester 31 is not used, the probe lead wire 32
Is removed from the measurement terminal 34 of the tester 31, and is folded and stored in a part of the storage case of the tester 31 (not shown).

[0003]

[Problems to be Solved by the Invention] In the current product, there is no special means for accommodating the probe lead wire 32.
The “entanglement” during the storage of the probe lead wire 32 often occurs, which is troublesome, and sometimes the probe lead wire 32 may be lost or damaged.

Further, when the tester 31 is used, since the probe lead wire 32 having a constant length always comes out of the tester 31, the length of the probe lead wire 32 is sometimes longer than necessary, which is difficult to use.

An object of the present invention is to provide a probe lead wire having a necessary and sufficient length when a tester is used, and to prevent the probe lead wire from being entangled, lost or damaged when the tester is not used. It is an object of the present invention to provide a probe lead wire storage device for a tester.

[0006]

According to the present invention, there is provided a probe lead wire winding / accommodating portion having an inlet / outlet portion through which a probe lead wire comes in / out, and a curved trace guide provided in the probe lead wire winding / accommodating portion. , A movable guide with a pulley that moves along the trace guide by hanging a probe lead wire, and a connecting arm that holds the movable guide with the pulley and rotates to move the movable guide with the pulley.

[0007]

Operation When pulling out the probe lead wire, the connecting arm is rotated in one direction by pulling the probe lead wire, which causes the movable guide with pulley to move along the trace guide at the entrance portion of the probe lead wire winding and storing section. Moving in the direction, the probe lead is pulled out of the inlet.

When the connecting arm is rotated in the opposite direction when the probe lead wire is accommodated, the movable guide with pulley moves along the trace guide in the direction away from the inlet of the probe lead wire winding and accommodating portion, and the probe lead wire is retracted. Is drawn in from the entrance and is stored in the space along the curved trace guide.

[0009]

FIG. 1 is a front external view of a tester equipped with a probe lead wire accommodating device for a tester according to an embodiment of the present invention.

A probe lead wire accommodating device 2 is arranged in a part of the casing of the tester 1, that is, in the upper portion of the casing of the tester 1 in FIG. Two probe holders 5 are provided on the side surface of the probe lead wire storage device 2 for fixing the probe pins 4 connected to the tips of the pair of probe lead wires 3 to the housing of the tester 1. To be

FIG. 2 is a view showing a first embodiment of the probe lead wire accommodating device 2 for a tester of the present invention.

The probe lead wire accommodating device 2 includes a spiral trace guide 7 provided in the probe lead wire winding and accommodating portion 6 and a movable guide with a pulley that moves along the trace guide 7 and draws the probe lead wire 3. 8 and
A connecting arm 11 that holds a movable guide 8 with a pulley so as to be slidable along a slide groove 9, and has one end thereof rotatably attached by a rotating shaft 10 at the center of a spiral trace guide 7. A spring (not shown) attached to the rotating shaft 10 of the connecting arm 11, a latch mechanism (not shown) according to a known technique for stopping the connecting arm 11 at an arbitrary position against the power of the spring, and an inlet 12. And pulley 13 of.

As shown in FIG. 2 (a), when the probe lead wire 3 is used, the probe lead wire 3 is detached from the probe holder 5 and pulled to hold the movable guide 8 with pulleys slidably. The connecting arm 11 is the rotating shaft 10.
Movable guide 8 with pulley that rotates clockwise around
Moves from the inside to the outside along the trace guide 7 along the sliding groove 9 of the connecting arm 11, and accordingly, the probe lead wire 3 resists the power of the spring and the probe lead wire winding / accommodating portion 6 Drawn from.

If the hand is released when the probe lead wire 3 is pulled out to an appropriate length, the connecting arm 11 is stopped and latched at that position by a known latch mechanism (not shown), and the probe lead wire 3 is pulled out. Is stopped. Note that FIG.
(B) shows a state in which the probe lead wire 3 is completely pulled out.

On the contrary, when the probe lead wire 3 is stored, the latch release button 14 is used to unlatch the rotary shaft 10 of the connecting arm 11 in the latch mechanism, and the probe spring wire 3 is accumulated in the spring when the probe lead wire 3 is pulled out. The connecting arm 11 is driven to rotate counterclockwise about the rotating shaft 10 by the power, and the probe lead wire 3 is moved to the trace guide 7 by the movable guide 8 with a pulley as shown in FIG.
The probe lead wire winding storage portion 6 is spirally accommodated along the above. As described above, the probe lead wire 3 is divided into one turn by the trace guide 7 in the housed state, so that the probe lead wire 3 is not entangled or twisted.
Also, because it is hung on a pulley, it can be pulled out and stored smoothly.

The inlet portion 12 of the probe lead wire storage device 2
A pulley 13 is provided on the pulley 13 for smooth operation when the probe lead wire 7 is pulled out and stored.

The one end 15 of the probe lead wire 3 is fixed to the tester probe lead wire storage device 2 and further extended and fixedly connected to the tester 1.
Therefore, as shown in the example of the current product of FIG. 4, a part of the switching operation of the measurement modes such as the voltage value, the current value, and the resistance value in the tester 1 is performed, and the connection plug 33 of the probe lead wire 32 is connected to the tester 31. Since the measurement mode cannot be inserted into the measurement terminal 34 and changed, the measurement mode selection switch 16 as shown in FIG. 1 or a measurement input selection switch (not shown) provided separately is used. By means.

In the probe lead wire storage device 2,
Corresponding to each of the two probe lead wires 3, the mechanism incorporated in the probe lead wire winding / accommodating section 6 is provided in one tester 1 as a set of two.

FIG. 3 is a view showing a second embodiment of the tester probe lead wire housing device 2 of the present invention.

In the second embodiment of the probe lead wire accommodating device 2 for a tester shown in FIG. 3, a plurality of concentric arc-shaped trace guides 17 are used as trace guides, and one end of the trace guide 17 is used. Fixed guides 18 with pulleys are respectively arranged, and furthermore, the same number of movable guides 19 with pulleys as the trace guides 17 are fixedly held, and one end thereof is rotated by a rotary shaft 20 at the center point of the arc of the trace guides 17. The point that a connecting arm 21 that can be attached is used is different from the first embodiment of the probe lead wire accommodating device 2 for a tester shown in FIG.

As shown in FIG. 3A, when the probe lead wire 3 is used, the plurality of movable guides 19 with pulleys are fixedly held by removing the probe lead wire 3 from the probe holder 5 and pulling it. The connecting arm 21 for rotating the rotary shaft 2
It rotates counterclockwise about 0, and the movable guide 19 with a pulley moves between the trace guides 17
Along the movable guide 19 with pulleys and the fixed guide 18 with pulleys, the probe lead wire 3 is pulled out from the probe lead wire winding / accommodating portion 22 while resisting the power of the spiral spring (not shown). Be done.

If the hand is released when the probe lead wire 3 is pulled out to an appropriate length, the connecting arm 21 is latched at that position by a known latch mechanism (not shown) and the pulling out of the probe lead wire 3 is stopped. It Note that FIG. 3A shows a state in which the probe lead wire 3 is completely pulled out.

When housing the probe lead wire 3,
By unlatching the rotating shaft 20 of the connecting arm 21 in the latch mechanism with the latch release button 23, the connecting arm 21 rotates clockwise around the rotating shaft 20 by the power accumulated in the spring when pulling out the probe lead wire 3. When driven, as shown in FIG. 3 (b), the movement of the movable guide 19 with pulleys causes the probe lead wire 3 to wind along the trace guide 17 in accordance with the movable guide 19 with pulleys and the fixed guide 18 with pulleys. Storage compartment 2
It is stored in 2.

Inlet portion 24 of the probe lead wire storage device 2
A pulley 25 is provided for the smooth movement of the probe lead wire 7 when it is pulled out and stored. One end 26 of the probe lead wire 3 is fixed to the probe lead wire accommodating device 2 for a tester, further extended, and fixedly connected to the tester 1.

[0025]

As described above, according to the present invention,
A probe lead wire winding / accommodating portion having an inlet / outlet portion for the probe lead wire, a curved trace guide provided in the probe lead wire winding / accommodating portion, and a probe lead wire are hung along the trace guide. A movable guide with a pulley that moves with respect to the movable guide, and a connecting arm that holds the movable guide with a pulley and that rotates to move the movable guide with a pulley are provided.
By rotating the connecting arm in the opposite direction, the movable guide with pulley is moved along the trace guide in the direction away from the inlet of the probe lead wire winding storage portion, and the probe lead is pulled in from the inlet. Since it is housed in the space along the curved trace guide, when using a tester, provide a probe lead wire of necessary and sufficient length, and when not using the tester, remove the probe lead wire. It is possible to prevent getting stuck, lost, or damaged.

[Brief description of drawings]

FIG. 1 is a front external view of a tester equipped with a probe lead wire storage device for a tester according to an embodiment of the present invention.

FIG. 2 is a diagram showing a first embodiment of a probe lead wire storage device for a tester.

FIG. 3 is a diagram showing a second embodiment of a probe lead wire storage device for a tester.

FIG. 4 is a front external view of a conventional tester.

[Explanation of symbols]

 1 Tester 2 Probe Lead Wire Storage Device 3 Probe Lead Wire 4 Probe Pin 5 Probe Holder 6 Probe Lead Wire Winding Storage Section 7 Trace Guide 8 Movable Guide with Pulley 9 Sliding Groove 10 Rotating Axis 11 Connecting Arm 12 Inlet 13 Pulley 14 Latch release button 15 One end of probe lead wire 16 Measurement mode selection switch 17 Trace guide 18 Fixed guide with pulley 19 Movable guide with pulley 20 Rotating shaft 21 Connecting arm 22 Probe lead wire winding / storing section 23 Latch release button 24 Inlet section 25 Pulley 26 One end of probe lead wire 31 Tester 32 Probe lead wire 33 Connection plug 34 Measurement terminal

Claims (1)

[Scope of utility model registration request] 1. A probe lead wire winding / accommodating portion having an entrance portion through which a probe lead wire comes in and out, a curved trace guide provided in the probe lead wire winding / accommodating portion, and a probe lead wire, A probe lead wire accommodating device for a tester, comprising: a movable guide with a pulley that moves along the trace guide; and a connecting arm that holds the movable guide with a pulley and rotates to move the movable guide with a pulley.