JPH0126047Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connecting terminal for fixing a conducting wire to the terminal.

In this type of connection terminal, in order to fix the conductor to the terminal without using molten metal etc., one end surface of the bolt or nut screwed into the terminal is pressed against the conductor in the conductor insertion hole formed in the terminal. It was only something that belonged to me.

With this type of conventional structure, not only the pressing force but also the sliding friction force due to the rotation of the bolt or nut acts on the conductor, which tends to damage the conductor and deteriorate conductivity. Also, bolts and nuts tend to loosen unexpectedly.

In order to solve this problem, for example, as shown in Japanese Utility Model Publication No. 30-13951, the conductor is held between the terminal body and a contact plate as a pressing member, and the contact plate is attached to the terminal body. A technique has been proposed in which the conductive wire is fixed to the terminal body by pressing with one end of a screwed pressing element, but according to this technique,
Although the backing plate is easy to manufacture, its rigidity is low, and one end of the pressing element presses against this low-rigidity backing plate, so there is a part where a concentrated load acts on the backing plate and the pressing element presses. The abutting plate part is deformed, and although the conductor part located directly under the pressing element is fixed, the remaining part is not fixed sufficiently, and furthermore, the abutting plate bends at the part pressed by the pressing element.
There is a possibility that it will not be fixed at all in areas other than directly below the pressing element.

In addition, since the pressing element is relatively long and the pressing is performed at one end, the holding of the position of the pressing element on the top surface of the plate is unstable, and when an external force acts on the conductor or the pressing element itself. Easy to loosen.

The object of the present invention is to eliminate such drawbacks and to provide a connecting terminal that can connect and fix a conducting wire to a terminal body as firmly and reliably as this without using molten metal.

The features of the present invention to achieve the above object include a terminal body having a conductor insertion hole into which the end of the conductor is inserted, and a position change in the radial direction of the conductor inserted within the conductor insertion hole. A flexible pressing member and a fixing mechanism configured to press the pressing member toward a side that reduces the diameter of the conducting wire inserted into the conducting wire insertion hole and fixing the conducting wire to the terminal body. In the connection terminal, the conductor insertion hole is formed in the shape of a gutter with an open upper side, and the length of the pressing member in the conductor insertion direction is approximately the same as the length of the conductor insertion hole in the same direction. and the thickness of the pressing member in the pressing direction is such that the upper end side is exposed upward from the upper end opening of the conducting wire insertion hole with the pressing surface portion of the lower end pressed against the conducting wire in the conducting wire insertion hole. The fixing mechanism has a thick wall, and the fixing mechanism includes a screw shaft that is erected at two positions spaced apart from each other in the conductor insertion direction at the upper end of the gutter-shaped conductor insertion hole of the terminal body. This structure consists of a spiral member and a nut that is screwed onto the spiral shaft member, and this structure provides the following effects.

That is, since the conductor is fixed by pressing the upper end surface of the pressing member protruding from the upper end opening of the conductor insertion part with the lower surface of the nut of the fixing mechanism, the conductor is fixed in a pressed state with just individual bolts. Compared to the conventional case, the conductor is less likely to be damaged or the fixed state to loosen.Furthermore, since the pressing member is thicker in the direction of pressing the conductor than in the past and has greater rigidity, the pressing force from the nut can be reduced. , the conductive wire can be distributed almost evenly over the entire length of the pressing surface portion that presses the conductive wire, which has the advantage that the conductive wire can be fixed and held extremely stably.

Examples of the present invention will be described below.

1 is a terminal body made of a conductive material, with a cross-sectional path U
A conducting wire insertion hole 2 is formed in the shape of a letter and having a gutter-like shape as a whole. Two spiral shaft-like members 3 whose axes extend in the vertical direction are arranged side by side on the lateral outer side of the U-shaped upper side at intervals in the conductor insertion direction of the conductor insertion hole 2. This screw-like member 3 and the nut 5 screwed therein constitute a fixing mechanism A that presses and fixes the pressing member 9 in a direction that reduces the diameter of the conducting wire.

The screw shaft-like members 3, 3 are divided into two halves by forming a notch 13 along the entire length along the axis including the center line, and in a state continuous with the notch 13, the terminal body A notch 14 parallel to the conductor insertion direction is formed on the side of the conductor 1 .

4 and 6 are screw grooves of the screw shaft-like member 3.

5 is a nut screwed onto the screw shaft-like member 3.

Reference numeral 9 denotes a pressing member, which is made of a plate-like member having a large thickness in the direction in which the conductor is pressed, and penetrates into the notch 14 formed in the terminal body 1. A pressing surface portion 7 having an inverted V-shaped pressing surface is integrally attached to the end surface of the pressing member 9 facing the U-shaped bottom of the insertion hole 2. A portion of the end surface 11 of the pressing member 9 that protrudes outward from the notch 14 corresponds to the notches 13, 13, and has a protrusion having a rectangular cross section that is approximately the same shape as the inner shape of the notches 13, 13. The parts 8, 8 are integrally provided. In this way, the protrusions 8, 8 are cut into the notches 1.
3 and 13 to make the pressing member 9 non-rotatable and movable in the lateral direction.
It is provided in Then, the end surface 11 on the side where the protrusions 8, 8 are provided is brought into sliding contact with the nut 5.
Push the pressing member 9 into the insertion hole 2 by screwing the
It is configured to be pressed and clamped at the bottom of the shape.

This terminal body 1 is provided with a tongue-shaped portion B at one end thereof for detachably connecting it to another terminal body of the same shape with a bolt nut 12.

Figures 7, 8, and 9 show various configurations in which multiple terminals of the same shape are connected in series. Figure 7 shows four terminals, Figure 8 shows three terminals, and Figure 9 shows three terminals. This shows a state in which two terminals are connected with their respective directions 90 degrees apart.

[Brief explanation of the drawing]

The drawings show an embodiment of the connection terminal according to the present invention,
Fig. 1 is a side view showing an example of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view thereof, Fig. 4 is a side view of the pressing member, Fig. 5 is a front view thereof, Fig. 6 is a plan view thereof, and FIGS. 7, 8, and 9 are simplified plan views showing application examples. DESCRIPTION OF SYMBOLS 1... Terminal body, 2... Conductor insertion hole, 3... Spiral-like member, 5... Nut, 7... Pressing surface portion, 9...
...Press member, 10...Conducting wire, A...Fixing mechanism.

Claims (1)

[Scope of utility model registration request] A terminal body 1 having a conductor insertion hole 2 into which the end of the conductor 10 is inserted, a pressing member 9 whose position can be changed in the radial direction of the conductor 10 inserted into the conductor insertion hole 2, and the pressing member 9. and a fixing mechanism A configured to fix the conductor 10 to the terminal body 1 by pressing the conductor 10 inserted into the conductor insertion hole 2 toward the side where the diameter of the conductor 10 is reduced. The conducting wire insertion hole 2 is formed in the shape of a gutter with an open upper side, and the length of the pressing member 9 in the conducting wire insertion direction is equal to the length of the conducting wire insertion hole 2 in the same direction. The thickness of the pressing member 9 in the pressing direction is set to be the same, and the thickness of the pressing member 9 in the pressing direction is
The thickness is set so that the upper end side is exposed upward from the upper end opening of the conductor insertion hole 2 when the pressing surface portion 7 at the lower end is pressed against the conductor 10 in the conductor insertion hole 2, and the fixing mechanism A is the upper end of the gutter-shaped conductor insertion hole 2 of the terminal body 1, and the spiral shaft-like members 3, 3 which are erected at two positions spaced apart in the conductor insertion direction, and the spiral shaft thereof. 1. A connecting terminal comprising nuts 5, 5 which are screwed into the similar members 3, 3.