JPH0742138Y2 - Probe device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a probe device used in an oscilloscope, a logic analyzer, or the like, and more particularly to improvement of measurement workability.

<Prior Art> FIG. 2 is a structural explanatory view showing an example of a conventional probe used in a logic analyzer, in which (a) is a perspective view and (b) is a sectional view. In the figure, reference numeral 1 denotes a sleeve, a small diameter portion 2 is formed at one end, and a large diameter portion 3 is formed at the other end, and a disk-shaped outer periphery of a boundary portion between the small diameter portion 2 and the large diameter portion 3. The support portion 4 is formed. In addition, a part 5 of the opening end of the small diameter portion 2 is bent and formed in an L shape. Reference numeral 6 denotes a moving member formed in a bottomed cylindrical shape, and is slidably fitted via a biasing spring 7 so as to include the large diameter portion 3 of the sleeve 1. Reference numeral 8 denotes a contactor, one end of which is attached so as to penetrate the moving member 6 and the other end of which is projected from the opening of the small diameter portion 2 of the sleeve 1 and which is locked to the L-shaped surface 5 of the opening end face. It is bent into a letter shape.

In the probe constructed in this manner, in the initial state where the operator does not operate, the moving member 6 is biased by the spring 7 in the direction opposite to the small diameter portion 2 as shown in the figure, and the contactor 8 is folded. The bent end is in close contact with the L-shaped surface 5 of the small diameter portion 2. In order to attach the probe to the measurement object from such an initial state, the small diameter portion 2 of the sleeve 1 is sandwiched between the index finger and the middle finger like a syringe, and the thumb is pressed against the bottom surface of the moving member 6 so that the moving member 6 is broken line. Spring 7 as shown in
Sliding against the sleeve 1 side against. In this way, the object to be measured is sandwiched in a state where the bent end of the contactor 8 and the L-shaped surface 5 of the small diameter portion 2 are opened, and the pressing of the thumb is loosened.

As a result, the measuring object is sandwiched between the bent end of the contactor 8 and the L-shaped surface 5 of the small diameter portion 2 by the urging force of the spring 7.

<Problems to be Solved by the Invention> However, according to such a configuration, the worker must put his / her finger on the object to be pinched, and the measuring workability is poor.

In particular, when the measurement place is inside the device, it is difficult to pinch it stably.

The present invention focuses on such a problem, and an object thereof is to provide a probe device having excellent workability, which can easily pinch an object to be measured.

<Means for Solving the Problems> The present invention has a sleeve in which a small diameter portion is formed at one end and a large diameter portion is formed at the other end, and the sleeve is formed in a tubular shape and is urged inside the large diameter portion of the sleeve. A moving member slidably fitted through a spring, one end of which is attached to this moving member, and the other end of which is formed so as to project from the opening of the small diameter portion of the sleeve and to be locked to the opening end face. A contactor, an operating portion arranged inside the moving member, formed to project from a side surface of the moving member and the sleeve, and formed to engage with an engaging portion formed on a part of the moving member. It is composed of a lock member made of an elastic member having an engaging portion, and the moving member is pushed against the biasing spring to be engaged with the engaging portion of the lock member, and the operating portion is pushed to move these members. That the engagement between the member and the lock member is released. And butterflies.

<Operation> By pushing the moving member in the axial direction, the engaging portion of the moving member is engaged with the engaging portion of the lock member and held in the pushed state, and the end portion of the contactor and the small diameter of the sleeve are held. The open end of the section is opened.

In this state, the moving member and the lock member are disengaged by inserting the measurement object between the end portion of the contactor and the opening end portion of the small diameter portion of the sleeve and pushing the operation portion of the lock member.
The measuring object is held between the end of the contactor and the open end of the small diameter portion of the sleeve.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a structural explanatory view showing an embodiment of the present invention,
(A) is a perspective view, (b), (c) is sectional drawing which served also as operation | movement description. In the figure, 11 is a sleeve, a small diameter portion 12 is formed at one end, a large diameter portion 13 is formed at the other end,
A disc-shaped support portion 14 is formed on the outer periphery of the boundary between the small diameter portion 12 and the large diameter portion 13. A part 15 of the open end of the small diameter portion 12 is bent and formed in an L shape. Reference numeral 16 is a moving member formed in a cylindrical shape, and is slidably fitted inside the large-diameter portion 13 of the sleeve 11 via a biasing spring 17.
Reference numeral 18 denotes a contactor, one end of which is attached so as to penetrate the moving member 16, and the other end of which is projected from the opening of the small diameter portion 12 of the sleeve 11 and which is locked to the L-shaped surface 15 of the opening end surface. It is bent into a letter shape. Reference numeral 19 is a lock member formed of an elastic member, and is arranged inside the moving member 16. The locking member 19 includes a moving member 16 and a sleeve 11.
Operation part formed so as to protrude from the side surface of the large diameter part 13 of
20 and a tapered engagement portion 22 formed so as to engage with an engagement portion 21 formed in a part of the moving member 16. The surface of the engaging portion 21 facing the operation portion 20 is the operation portion 20.
Is formed as a surface substantially parallel to the side surface, and the other surface is formed as a tapered surface substantially parallel to the taper of the engaging portion 22. Further, the end surface of the engagement portion 22 is also formed as a surface substantially parallel to the side surface of the operation portion 20.

The operation of the apparatus thus configured will be described.

(B) shows a state in which the engagement of the moving member 16 and the lock member 19 is released by the operator pushing the operation unit 20,
(C) shows a state in which a part of the moving member 16 is engaged with the engaging portion 22 of the lock member 19 by the worker pushing the moving member 16 against the biasing spring 17. .

That is, in the state of (b), the moving member 16 is biased by the spring 17 in the direction opposite to the small diameter portion 12, and the bent end of the contactor 18 is in close contact with the L-shaped surface 15 of the small diameter portion 12. is doing.

When attaching the probe to the measurement object from such a state, the small diameter portion 12 of the sleeve 11 is sandwiched between the index finger and the middle finger like a syringe, and the thumb is pressed against the bottom surface of the moving member 16 to move the moving member 16 to the spring 17. Slide to the small diameter part 12 side against the. As a result, the tapered surface of the engaging portion 21 of the moving member 16 moves along the taper of the engaging portion 22 of the lock member 19 to form the engaging portion.
As shown in (c) of FIG.
The end surface of the contact member 18 and the end surface of the engaging portion 22 of the lock member 19 are engaged with each other in a closely contacted state, and the bent end portion of the contact 18 and the L-shaped surface 15 of the small diameter portion 12 of the sleeve 11 are engaged. The object to be measured can be sandwiched by the open state. As described above, in a state where the engaging portion 21 of the moving member 16 is engaged with the engaging portion 22 of the lock member 19, it is not necessary for the worker to keep pressing the moving member 16, and the degree of freedom of work becomes extremely high. Therefore,
Even if the measuring place is a deep and narrow place inside the equipment, it is possible to perform the measurement quickly.

After sandwiching the object to be measured, the operator pushes the operating portion 20 of the lock member 19 to release the engagement between the moving member 16 and the lock member 19 as described above (b). As a result, the moving member 16 is urged by the spring 17 in the direction opposite to the small diameter portion 12, and the measuring object is urged by the spring 17 to bend the bent end of the contactor 18 and the small diameter portion 12.
It will be sandwiched between the L-shaped surface 15 and.

In addition, although the example of the probe used in the logic analyzer has been described in the above embodiment, it is obvious that it can be applied to a probe for an oscilloscope.

Further, the engagement structure composed of the moving member and the lock member is not limited to the embodiment, and various modifications can be made according to the knock structure used in a ballpoint pen or the like.

<Effects of the Invention> As described above, according to the present invention, a probe device with excellent workability can be realized that can easily pinch an object to be measured, and has a large practical effect.

[Brief description of drawings]

FIG. 1 is a structural explanatory view showing an embodiment of the present invention, and FIG. 2 is a structural explanatory view showing an example of a conventional probe. 11 …… Sleeve, 12 …… Small diameter part, 13 …… Large diameter part, 14 ……
Support part, 15 L-shaped surface, 16 moving member, 17 spring, 18 contact, 19 locking member, 20 operating part,
21,22 …… Engagement part.

Claims (1)

[Scope of utility model registration request] 1. A sleeve having a small-diameter portion formed at one end and a large-diameter portion formed at the other end, and formed in a tubular shape so as to be slidable inside the large-diameter portion of the sleeve via an urging spring. The fitted moving member, the contactor having one end attached to this moving member and the other end protruding from the opening of the small diameter portion of the sleeve and locked to the opening end face, An elastic member that is disposed and has an operating portion that is formed so as to project from the side surface of the moving member and the sleeve, and an engaging portion that is formed so as to engage with an engaging portion that is formed in a part of the moving member. When the moving member is pushed against the biasing spring, it is engaged with the engaging portion of the lock member, and when the operating portion is pushed, the moving member and the locking member are engaged with each other. A probe device that is released.