JPS58108674A - Connecting terminal - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connection terminal used for connecting conductors such as coaxial cables and parallel feeders in series units, amplifiers, filters, distributors, etc.

Conventional connection terminals in which the tightening screw rod can be moved in the axial direction relative to the seat plate have the disadvantage that it is difficult to determine where the conductor should be placed when connecting the conductor.

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned drawbacks, and aims to provide a connection terminal that allows the user to clearly recognize the location where the conductor should be placed, and also allows the assembly process to be performed simply and quickly. It is something.

The drawings showing the embodiments of the present application will be described below.

In FIGS. 1 to 6, 1 is a case made of plastic material (ABC, high impact, acrylic, styrene, etc.).

2 shows a well-known mounting part, 3 a charging tube, and a groove 4 inside thereof.
, step portions 5 and 6 are formed, respectively. Naozuri.

The cutout for inserting 19 conductors is shown. Next, the connection terminal 7 attached to the charging tube 3 will be explained. The connection terminals 7 are formed not only on the front side of the case 1 but also on the back side, but since their configurations are the same, a redundant explanation of the connection terminals on the back side will be omitted.

8 is a substrate made of metal material with good conductivity (e.g. brass plate)
It is formed using Reference numeral 9 denotes a seat plate, which is formed integrally with the base plate 8. Further, the side portion 9a has a slight bulge as shown in the figure.

10 is a through hole for insertion, and 11 is a notch, which is formed long in the radial direction of the through hole 10. 12 is a receiving piece, and 13 is an engaging piece, which are made by cutting and raising a part of the board 8.
1 and form it. Reference numeral 14 denotes a tightening piece, which is made of a metal material (for example, makaku board) with good electrical conductivity (8).

The city indicates a screw hole. 16 tighten the screw rod, its shaft 16
B is screwed into the screw hole 15, and the neck portion 10b is formed to have a smaller diameter than the shaft portion 16a (main body portion) at the base portion. This prevents the threaded rod 16 from moving in its axial direction. This shows a knob attached to the base of the 17Fi screw barrel 16, which is configured to protrude long from the seat plate 9 as shown in FIGS. 2 to 6. 20 indicates a suppressing surface, which overlaps with the hole edge 10&. Next, reference numeral 21 denotes a well-known external conductor connection section, which is comprised of a receiving plate η, a piece with a pongee, a threaded rod holder, and the like.

Part indicates the supply w, a coaxial cable is shown as an example of a line, addition indicates the outer conductor, η indicates the internal insulator, and columns indicate the center conductor. 2
1) shows a 7-Ratsuyu plate.

In the above structure, the connection terminal 7 is assembled to the case 1 in the following manner. That is, the shaft portion 16a of the threaded rod 16 is inserted through the large through hole 10 formed in advance, and the neck portion 16a is inserted as shown in FIG. 5(A) and FIG. 6(G).
b is positioned within the through hole 10.

(4) Also, the shaft portion 16 a is screwed into the tightening piece 14 . Then, as shown in FIGS. 5(B) and 6(B), pressurize the sides ga, ga of the seat plate 9 with an air nipper (or press device) in the direction of the arrow through the jig 31. The through hole 10 is deformed so that its diameter becomes smaller and the hole edge 10a is positioned at the neck portion 16b.

(Note that due to the presence of the notch 11, the above deformation can be performed with a small pressing force.) The connecting terminal 7 is thus completed.

Once the connection terminal 7 is completed in this way, it is inserted into the charging tube 3 from below in FIG. 2. When one end of the seat plate 9 engages with the stepped portion 6 and the engaging piece 13 engages with the stepped portion 5, attachment of the connecting terminal 7 to the charging tube 3 is completed.

The coaxial cable δ is connected to the connection terminal configured as described above in the following manner. First, with the clamping piece 14 spaced apart from the seat plate 9, the center conductor row of the coaxial cable is inserted between the seat plate 9 and the clamping piece 140 through the cutout part k, and the outer conductor part is inserted into the first Insert between the receiving plate and the clamping piece as shown in the figure. and external conductor connection part 21
In this case, screws are tightened in a well-known manner. Further, in the connection terminal 7, the threaded rod 16 is rotated by the knob 17.

Then, the tightening piece 14 moves closer toward the seat plate 9, and the third P.
A center conductor public is sandwiched between them as shown in A. In this case, although the center conductor 28 is located at a position offset to the side of the threaded rod 16,
The threaded rod 16 is prevented from being tilted relative to the seat plate 9 by being received by the receiving portion 12a of the aperture receiving portion 16. Further, in this case, the hole edge 10 a of the through hole 10
K has a notch 1], but since the hole edge 10a and the center conductor row are clamped together between the pressing rotation of the knob 17 and the tightening piece 14, the hole edge 10a is weakened and the seat plate 9 is deformed, so that the mechanical and electrical connections between the conductors will not be weakened.

Next, FIG. 7 shows a different embodiment of the present application, and shows an example in which notches 11e are provided only at l locations. This notch may be provided on the other side (the side 9ae or the substrate 8e side).

In addition, the part VcFi that is considered to have the same or equivalent configuration as the previous one, the same reference numeral as the previous one has been given the alphabet e, and redundant explanation has been omitted.

As described above, in this invention, the tightening piece 14 is attached to the seat plate 9 by turning the tightening screw 16 through the knob 17.
Not only can the conductor path be tightened between them, but also because the threaded rod 16Fi is immovable in the axial direction relative to the seat plate 9, the knob 17 must be tightened when tightening the conductor m28. When turned, only the tightening piece 14 can be brought closer to the seat plate 9, allowing the operator to see the space in which the conductor row should be positioned for tightening, for example from the direction of the arrow ■ in Fig. 3. It has an effect that can be clearly recognized.

Furthermore, even with the above-mentioned immovable structure, its assembly requires inserting the tightening screw rod 16 into the through hole 10 and narrowing the hole diameter of the through hole 1o (the narrowing operation is performed by the presence of the notch l). It has the effect of being extremely quick and easy to do just by using force.

Moreover, as mentioned above, the existence of the notch 11 may weaken the hole edge 10a of the through hole IO (7).
) However, in the state in which the conductor wires are fully tightened, the conductor row has a structure in which it is sandwiched between the pressing rotation and the tightening piece 14 (the hole edge 1 of the through hole 10
Even if the hole edge 10a is of a structure that receives only compression, the notch 11 is reinforced when the conducting wire array is fully tightened. It has the advantage that a firm fastening state can be achieved without being adversely affected by the presence of the metal, and high reliability of mechanical and electrical connections can be obtained.

Furthermore, when the present invention is provided with a receiving piece ν, even if the screw rod 16 is turned in the opposite direction and the tightening piece 14 is separated from the seat plate 9, the screw stop 16 of the tightening piece 14 It has a practical effect of preventing it from falling off.

In addition, if you want to control the opening size between the seat plate 9 and the fastening piece 14 at the time of shipment, simply predetermine the distance between the seat plate 9 and the catch piece ν, and the above opening size can be adjusted accurately. There are also effects that can be regulated.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and Fig. 1 is a front view, Fig. 2 is an enlarged cross-sectional view taken along the line (8), Fig. 3 is a cross-sectional view taken along the line (8), and Fig. 3 is an exploded view of the connecting terminal. Perspective view, Figure 5,
FIG. 6 is a diagram showing the assembly process (FIG. 5 is a sectional view taken along the line M-V in FIG. 6, and FIG. 6 is a sectional view taken along the line M-Vl in FIG. 1), and FIG. 7 is a diagram showing a different embodiment. A diagram similar to that in Figure 5. 8... Substrate, 9... Seat plate, 1o... Through hole, 11.
... Notch, 14... Tightening piece, 16... Tightening threaded rod, 16 b... Neck, 17... Knob, pressure... Pressing surface. Figure 7 ctq Ren IL'Qc 375-

Claims (2)

[Claims] (1) Tightening pieces with screw holes are arranged opposite to the seat plate with a through hole so as to be movable near and far, and the base of the through hole is larger than the diameter of the through hole Insert a tightening threaded rod with a diameter knob and screw the tip into the screw hole,
A connection in which the tightening piece is moved closer to the seat plate by rotating the tightening threaded rod to clamp the conductor inserted between the tightening pieces and the seat plate. In the terminal, a neck portion having a smaller diameter than the main body portion of the tightening screw rod is formed at the base portion of the tightening screw rod in contact with the knob portion, and the tightening screw rod is attached to the seat plate in the neck portion. The edge of the through hole is left in such a way as to prevent it from moving in the axial direction, and the end surface of the knob that contacts the neck is pressed so that it overlaps with the surface of the opposite side of the edge of the through hole. 1. A connection terminal, characterized in that a notch extending in the radial direction of the through-hole is formed in a part of the edge of the through-hole in the seat plate so as to facilitate reducing the diameter of the through-hole. (2) For the seat plate that is brought out laterally from the board and has a through hole drilled therein, fastening pieces with screw holes are placed facing each other so as to be movable near and far. Insert a tightening threaded rod with a knob with a larger diameter than the diameter of the through hole marked 2 into the base, and screw the tip of the rod into the threaded hole marked 17. By rotating the clamping pieces to move them closer to the seat plate, the connecting terminal is adapted to clamp the conductor inserted between the clamping pieces and the seat plate. A neck portion with a smaller diameter than the main body portion of the tightening screw rod is formed at the base of the screw stopper in contact with the knob portion, and the neck portion is provided with a neck portion in which the tightening screw rod is oriented in the axial direction relative to the seat plate. The edge of the through hole is left to prevent movement, and the end surface of the knob that contacts the neck is a pressing surface that overlaps with the surface of the anti-tightening side of the edge of the through hole, On the other hand, in the seat plate, a notch extending in the radial direction of the through hole is formed in a part of the edge of the through hole to facilitate reduction of the diameter of the through hole, and furthermore, in the base plate, the tightening piece is attached. At the center, on the side opposite to the seat plate, and at a position where the distance from the seat plate is smaller than the length from the neck to the tip of the tightening threaded rod, there is a screw in the direction opposite to the seat plate of the tightening piece. 1. A connection terminal characterized in that a sag-receiving piece is attached to prevent the movement of the terminal.