JP3304253B2 - Push terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push terminal of a parallel operation type in which a core wire insertion direction and a knob operation direction are the same.

[0002]

2. Description of the Related Art There are many push terminals for pressing a knob when connecting an electric wire, in which the knob is operated in a direction perpendicular to a core wire insertion direction. However, in such a right-angle operation type push terminal, when the knob is pressed down, the knob is lowered below the lower surface of the case, so it is necessary to secure extra space for the knob. On the other hand, a parallel operation type push terminal in which the core wire insertion direction and the knob operation direction are the same does not need to secure such an extra space, and the use range is widened accordingly.

A parallel operation type push terminal is disclosed in Japanese Utility Model Publication No. 64-3183. In this push terminal, when the knob is pressed, the terminal is deformed in the case, and the core wire insertion hole provided in the terminal matches the core wire insertion hole provided in the case. After inserting the core into the case through each core insertion hole, releasing the knob moves the core insertion hole relative to the case core insertion hole by the restoring force of the terminal. Is pressed against the core wire. In addition, the knob returns to the original position as the terminal is restored.

[0004]

In such a parallel operation type push terminal, when inserting a core wire, it is necessary to align the core wire insertion hole of the terminal with the core wire insertion hole of the case. In this regard, it is not easy to operate the knob. Since the core wire is fixed by the restoring force of the terminal and the knob is returned, it is difficult to design the terminal, and a sufficient fixing force may not be obtained.

[0005] Japanese Utility Model Publication No. 57-13735 discloses a push terminal of a parallel operation type. However, since this is a type in which a knob is rotated, the structure is complicated. Further, the push terminal disclosed in Japanese Utility Model Publication No. 3-1888 has a problem that the core wire is easily inserted because the core wire is directly inserted without operating the knob when inserting the core wire.

The present invention has been made in view of the above circumstances, and provides a push terminal which is simple in structure and operation, and which can securely fix an inserted core wire, despite being a parallel operation type. The purpose is to do.

[0007]

In order to achieve the above object, a push terminal according to the present invention has a case in which a core wire insertion hole and a knob protrusion hole are opened in the front, a case fixed in the case, and a front surface of the case. A fixed terminal having a core wire insertion hole corresponding to the core wire insertion hole of the case, a straight-moving operation type knob arranged to be able to move forward and backward in the case, A spring biasing to the side, and formed behind the core wire insertion hole formed in the front of the case and projecting from the front of the knob to close the core wire insertion hole, and through each core wire insertion hole of the case and the fixed terminal It has a pointed core wire pressing portion that presses the core wire inserted into the case, and an operating portion that is formed to protrude from the front of the knob and protrudes to the front from the knob protrusion hole on the front.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a three-sided view showing the appearance of an example of a push terminal embodying the present invention, FIG. 2 is a longitudinal side view showing the internal structure of the push terminal in a disconnected state and a connected state, and FIG. FIG. 4 is a front view and a side view of a knob used for the push terminal, and FIG. 4 is a three-side view of a fixed terminal used for the push terminal.

This push terminal is used, for example, for connecting signal lines of a pachinko machine.

This push terminal is shown in FIGS.
As shown in FIG. The case 10 includes a horizontally long base plate 11 and a plurality of case bodies 1 arranged in the width direction at a predetermined interval on the front side thereof.
Consists of two. The back of the case body 12 is open,
It is fixed to the front surface of the base plate 11 by a pair of upper and lower snap-fit claws 13, 13 projecting to the rear side.

A circular core insertion hole 14 is formed in the upper front part of the case body 12. A tapered surface is formed at the edge of the core wire insertion hole 14 on both the front and back surfaces of the case body 12. The tapered surface on the front side is a side for facilitating insertion of the core wire 50. Also, the case body 1
A square knob protrusion hole 15 is formed in the lower part of the front of 2.

A knob 20 and a fixed terminal 30 are provided inside the case body 12. The knob 20 is urged forward by a spring 40. As shown in FIG. 3, the knob 20 has a core wire pressing portion 21 protruding from the upper front portion and an operation portion 22 protruding from the lower front portion.

The core wire pressing portion 21 of the knob 20 has a substantially conical shape whose outer diameter gradually decreases toward the front, and is located behind the core wire insertion hole 14 provided on the front of the case body 12. The operation unit 22 of the knob 20 is
Projecting toward the front side of the case body 12 through a knob projection hole 15 provided on the front side of the case body 12. A round hole 23 is provided on the back surface of the knob 20 for positioning the spring 40.

The spring 40 for urging the knob 20 includes
It is positioned by the round hole 23 and a shallow annular groove 111 provided in the base plate 11 opposed thereto.

The fixed terminal 30 is, as shown in FIG.
The main body 31 has a U-shape in a side view with an opening directed downward, and a connecting portion 32 extending from the main body 31 to the rear in a tongue shape. The main body 31 is fitted and fixed in the case main body 12,
The connection portion 32 penetrates through the base plate 11 attached to the case main body 12 and protrudes to the rear side thereof.

The front vertical portion of the main body 31 is the case main body 12.
A contact hole 33 is formed on the front portion of the case body 12 from the back side thereof, corresponding to the contact hole 14 of the case body 12. The vertical portion on the rear side of the main body 31 contacts the front surface of the base plate 11. The horizontal part sandwiched between the front part and the rear part of the main body 31 contacts the ceiling surface of the case main body 12. Connection part 32
Project through the base plate 11 to the rear side thereof as described above.

The outer diameter of the core wire pressing portion 21 of the knob 20 is set so that the front half thereof is inserted into the core wire insertion hole 14 of the case body 12 through the core wire insertion hole 33 of the fixed terminal 30.

Next, the use method and functions of the push terminal will be described.

The knob 20 is urged forward by a spring 40. Since the knob 20 is of a straight type and not of a rotary type, its structure is simple.

When the operating portion 22 of the knob 20 is not pressed, the front half of the core pressing portion 21 of the knob 20 is connected to the core insertion hole 3 of the fixed terminal 30 as shown in FIG.
Since the wire 3 is inserted into the core wire insertion hole 14 of the case main body 12, the core wire insertion hole 14 of the case main body 12 is maintained in a closed state.

When the operating portion 22 of the knob 20 is pushed in against the urging force of the spring 40, the core pressing portion 21 is retracted as shown in FIG.
The core wire insertion hole 14 is opened. At this time, the core wire insertion hole 1
There is no need to align the core wire insertion hole 33 of the fixed terminal 30 with 4.

When the core insertion hole 14 of the case main body 12 is opened, the core 50 is inserted into the case main body 12 from the core insertion hole 14. From the core wire insertion hole 14 to the case body 12
The core wire 50 inserted into the inside of the fixed terminal 30 passes through the core wire insertion hole 33 of the fixed terminal 30. Further, by being guided on the inclined outer peripheral surface of the core wire pressing portion 21, it is inserted deep into the case body 12 avoiding the core wire pressing portion 21.

When the knob 20 is released in this state, the core 50 is pressed by the core pressing part 21 of the knob 20. This pressing force is arbitrarily adjusted by the strength of the spring 40. Also, by the tip of the core wire pressing portion 21,
It is strongly pressed against the inner edge of the core wire insertion hole 33 of the fixed terminal 30. Thus, the inserted core wire 50 is firmly fixed, and its removal is prevented.

As described above, although the push terminal is of the parallel operation type, its structure and operation are simple, and the inserted core 50 can be securely fixed.

[0026]

As described above, the push terminal according to the present invention has a simple structure because it employs a straight-type knob. The terminal is fixed, and the core pressing part retreats by pressing the knob to open the core insertion hole of the case.Therefore, there is no need to align the core insertion hole of the terminal with the core insertion hole of the case, and operation is easy. is there. The core wire is pressed by the urging force of the knob, and the pressing portion is pointed, so that the core wire can be pressed strongly against the inner surface edge of the core wire insertion hole formed in the fixed terminal, and the core wire is securely inserted. Can be fixed. In addition, since the core wire pressing portion has a pointed shape, the core wire is securely inserted deep into the case avoiding the core wire pressing portion, so that the core wire pressing portion does not become an obstacle when inserting the core wire. Also contributes to secure the core wire. Furthermore, when not in use, that is, when the core wire is not inserted into the core wire insertion hole, the core wire insertion hole is closed by the core wire pressing portion of the knob, so that foreign matter such as dust or dirt enters the inside. In addition, it is possible to prevent a short circuit or the like caused by these.

[Brief description of the drawings]

FIG. 1 is a three-sided view showing an appearance of an example of a push terminal embodying the present invention.

FIG. 2 is a longitudinal sectional side view showing the internal structure of the push terminal in a disconnected state and a connected state.

FIG. 3 is a front view and a side view of a knob used in the push terminal.

FIG. 4 is a three-side view of a fixed terminal used in the push terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Case 11 Base plate 12 Case main body 14 Core wire insertion hole 15 Knob protrusion hole 20 Knob 21 Core wire pressing part 22 Operation part 30 Fixed terminal 31 Main body 32 Connection part 33 Core wire insertion hole 40 Spring 50 Core wire

Continuation of the front page (56) References JP-A-64-35878 (JP, A) JP-A-51-51486 (JP, U) JP-A-57-80082 (JP, U) JP-A-51-72187 (JP) , U) Jigyo Hei 3-1888 (JP, Y2) Jigyo 64-3183 (JP, Y1) Jigyo 57-13735 (JP, Y1) (58) Fields surveyed (Int. Cl. ⁷ , DB Name) H01R 4/48 H01R 4/50

Claims (5)

(57) [Claims] 1. A push terminal of a parallel operation type in which a core wire insertion direction and a knob operation direction are the same, wherein a case having a core wire insertion hole and a knob protrusion hole formed in the front, a case fixed in the case, and a front part of the case. A fixed terminal with a core wire insertion hole corresponding to the core wire insertion hole of the case at the part that contacts from the back side, a linear operation type knob arranged to be able to move back and forth in the case, and a knob on the front side And a spring that is biased toward the front of the case and is formed behind the core insertion hole that is formed in the front of the case, and is formed to protrude from the front of the knob to close the core insertion hole. A pusher for pressing a core wire inserted into the inside thereof, and an operating portion formed to project from the front of the knob and projecting to the front side from the knob projection hole on the front. Terminal. 2. The push terminal according to claim 1, wherein the pointed core wire pressing portion of the knob has a substantially conical shape whose outer diameter gradually decreases toward the front side. 3. The push terminal according to claim 1, wherein a portion of the fixed terminal inserted into the case is bent into a U-shape and fitted into the case. 4. The push terminal according to claim 1, wherein the case comprises a base plate, and a plurality of case bodies mounted side by side on the front surface of the base plate. 5. The push terminal according to claim 4, wherein an exposed portion of the fixed terminal mounted on each case body penetrates through the base plate and projects rearward.