JPH0247556Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a structure for attaching connection terminals of electric wires.

(Prior art) Conventionally, to connect an electric wire, the tip of the electric wire is soldered or screwed to a terminal body installed in a connector, or inserted into a cut-and-raised piece of the terminal body. Connections were made by crimping or other means.
For this reason, it is necessary to perform cumbersome installation work using tools such as a soldering iron, screwdriver, or pliers, which not only causes extremely low work efficiency, but also results in poor solder welding and poor tightening and caulking of screws. There was also a risk of separation during use due to insufficient filling.

(Problems that the invention attempts to solve) Therefore, in view of the above conventional problems, this invention
To solve this problem, the object is to obtain a robust electric wire connecting terminal which can be securely connected and fixed by a simple operation without using any special tools, and which will not be separated unnecessarily.

(Means for solving the problem) As a means to achieve this, this invention forms an elastic connecting piece on the side surface of a cylinder with a bottom made of a conductor, and a hole with a diameter smaller than the diameter of the electric wire in the center of the bottom surface of the base. Insert the terminal body, which has engaging pieces projecting radially with a space between each other, into the continuous hole of the connector, and the tip of the electric wire inserted into the connector that protrudes into the connection hole. is inserted through the small diameter hole on the bottom of the base, its outer periphery is clamped and fixed so that it engages with the above-mentioned engagement piece, and the tip of the other electric wire is inserted and clamped into the elastic connection piece to connect both electric wires. It is electrically connected.

(Example) An example of the specific configuration of this invention shown in the drawings will be described in detail below.

The drawing shows an example in which the electric wire connection terminal of this invention is applied to a lighting fixture such as a chandelier, where 1 is a lighting fixture, 2 is a light bulb, 3 is a hanging side connector, and 4 is a holding side connector. Two electric wires 5 are inserted in parallel at an interval into the upper end of the side connector 4, and a connection hole 7 is drilled from below with the tip 6 of the wire as a bare wire.
protrude from the inner end of the Reference numeral 8 denotes a terminal body made of a conductive material, which is formed into a substantially bottomed cylindrical shape with a base 9 and an elastic connecting piece 10 erected from the base. While dividing, the diameter is reduced 12 from the center to the tip, and the tip is widened 13 in a flap shape to increase elasticity.
The base 9 has a small hole 14 in the center with a diameter smaller than the diameter of the electric wire 5.
At the same time, sector-shaped cutting holes 15 are formed in a radial direction, thereby forming sector-shaped engaging pieces at intervals. Then, when this terminal body 8 is inserted into the connecting hole 7 from the base 9 side and the small hole 14 is forcefully fitted into the tip part 6 of the electric wire 5 protruding from the inner end of the connecting hole 7, the small hole 14 is formed with the diameter of the electric wire 5. Since the diameter is smaller, the engaging pieces 16 on the outer periphery of the small hole 14 fit into the small hole 14 while bending toward the tip side, and the electric wire 5 is inserted by the tip of each engaging piece 16.
The distal end portions 6 of the two are interlocked and clamped and fixed. Further, connecting engagement pins 17 are symmetrically provided on the outer surface of the holding side connector 4 in a protruding manner. On the other hand, two electric wires 18 are inserted in parallel from the lower end of the hanging connector 3 at an interval, and their tips 19 are made to protrude from the upper end as bare wires. In addition, the above electric wire 5 and electric wire 1
8 can be securely fixed by crushing and deforming a portion when inserting. Further, the tip portion 19 may be covered with a connecting tube. Reference numeral 20 denotes a slide cap which is slidably fitted into the connector 3 and which connects the inwardly bent portion 21 of the lower end with the connector 3.
A spring 22 is stretched between the lower end surface of the slide cap 20 and the slide cap 20 to constantly urge the slide cap 20 downward. Furthermore, an engaging groove 2 is symmetrically formed on the side surface of the slide cap 20.
3, this engagement groove 23 has a guiding portion 24 bent in an L shape from the upper end, and a locking portion 25 bent toward the upper end at the inner end thereof.

With this configuration, the holding side connector 4
To connect the hanging connector 3 to are clamped so as to expand against their elasticity and electrically connected, and then the slide cap 20 is slid upward against the tension of the spring 22 to open the guide portion 24 of the engagement groove 23. Insert the connecting engagement pin 17 of the connector 4 into the slide cap 2.
0 by slightly rotating the connecting engagement pin 17 to the locking part 25.
If the cap 20 is moved downward by the tension of the spring 22, the connecting engagement pin 17 can be engaged with the locking part 25.
Both connectors 3, 4 can be reliably connected.
Moreover, when separating both connectors 3 and 4, the above operation may be performed in reverse.

(Effects of the invention) As described above in detail with respect to the embodiment, this invention engages and clamps the tip of the electric wire inserted in the connector with the engagement piece formed with a gap between the bases of the terminal body. Therefore, during the connection and fixing work, the connection can be easily and securely made by simply pressing the terminal body with force, without using any special tools. In addition, the engaging pieces of the terminal body are bent and expanded by the electric wire when pushed in, but since the engaging pieces are separated from each other from the cutout hole, they do not interfere with each other, and the elasticity of the engaging pieces themselves allows the electric wire to be expanded. Since the wires engage in a wedge-like manner toward the tip, the wires can be fixed firmly and securely without coming off unnecessarily even when subjected to external forces such as vibrations and shocks, and are also electrically secure. It has various excellent effects such as being able to connect reliably without contact resistance.

[Brief explanation of drawings]

Figure 1 is a partially cut away exploded perspective view of this invention.
FIG. 2 is a plan view of the terminal body, FIG. 3 is a partially cutaway side view of the device installed in a lighting fixture, and FIG. 4 is a partially cutaway side view of the connector. 4... Holding side connector, 5... Electric wire, 6... Tip, 7... Connection hole, 8... Terminal body, 9... Base,
10... Elastic connection piece, 14... Small hole, 15... Cutout hole, 16... Engagement piece.

Claims (1)

[Scope of utility model registration request] A terminal body in which an elastic connecting piece is formed on the side surface of a bottomed cylinder made of a conductor, a hole with a diameter smaller than the diameter of the electric wire is provided in the center of the bottom surface of the base, and engaging pieces are provided radially protruding from each other with a gap between them. is inserted into the connecting hole of the connector, and the tip of the electric wire inserted in the connector that protrudes into the connecting hole is inserted through the small diameter hole on the bottom of the base, and its outer periphery is engaged with the engaging piece. An electric wire connection terminal is made by clamping and fixing the two electric wires, and then inserting and pinching the tip of the other electric wire into the elastic connecting piece to electrically connect the two electric wires.