JPH11288748A - Terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a terminal capable of connecting a cable with a simple operation regardless of a size of a conductor diameter of the cable. SOLUTION: This terminal is equipped with a cylindrical body which is formed by a conductor and is provided with a notch part in its middle part, a hollow part 5 which has an opening on one end surface of the body and passes through the notch part, a mounting part 7 provided on another end surface of the body, axis holes 8a provided so as to face both end surfaces of the notch part 3, an eccentric ring 10 which is pivoted by the axis holes 8a and is turned by being loosely fitted with the notch part 3, a through hole 11 passing though both end surfaces of the eccentric ring 10, and a spring 9 which biases the eccentric ring 10 in the turning direction and presses and biases the eccentric ring 10 onto one end surface of the notch part 3. Thereby, a cable can be electrically connected and fixed with a simple operation, by inserting a conductor of a cable from an axis direction of the terminal 1, and as long as the conductor has a diameter which can be inserted in the hollow part 5 of the terminal 1, it can be electrically connected and fixed regardless of the size of the conductor diameter of the cable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a terminal for connecting a conductor such as a speaker cable.

[0002]

2. Description of the Related Art A conventional example will be described using a speaker terminal attached to an audio device or the like to which a speaker cable is connected. FIG. 4 shows a schematic configuration diagram in which a speaker cable is inserted into a speaker terminal.

In FIG. 4, a speaker terminal 41 is shown.
Is a speaker terminal 4 near the disc-shaped base 42.
1 has a through hole 43 substantially perpendicular to the axial direction,
2, a terminal screw portion 44 that is screwed into the terminal screw portion 44, a fastening member 46 that tightens and fixes the speaker cable 45 inserted into the through hole 43, and a terminal screw portion 44 that extends from the base 42 in a direction opposite to the terminal screw portion 44. broth,
It has a mounting portion 47 provided with a screw portion for mounting and fixing the speaker terminal 41 to a housing of an audio device or the like, and the base 42, the terminal screw portion 44, and the mounting portion 47 are integrally formed of a conductor.

The speaker cable 45 of the fastening member 46
A conductor that is screwed into the terminal screw portion 44 is provided on the end surface 48 for tightening the speaker cable 45 so that the contact resistance between the speaker cable 45 and the speaker terminal 41 is reduced. The above-described speaker terminals 41 are usually arranged two by two on the rear surface of an audio device or the like.
In the case of having speaker switching in two channels, eight speaker terminals 41 are erected.

Therefore, since a large number of speaker terminals 41 are provided in a limited space on the rear surface of an audio device or the like, the interval between the speaker terminals 41 is reduced, and it becomes difficult to connect the speaker cable 45. In order to connect the speaker cable 45, the speaker cable 45 must be inserted into the through hole 43 provided in the speaker terminal 41 and fastened by the fastening member 46, but the through hole 43 is orthogonal to the standing speaker terminal 41. Therefore, the position and the direction of the through hole 43 are difficult to understand.

Further, when a large number of speaker terminals 41 are provided, the interval between the speaker terminals 41 becomes narrow, making it difficult to visually confirm the through holes 43.
When the speaker cable 45 is connected to another speaker terminal 41, the speaker cable 45 is connected to the through hole 43.
It has become difficult to insert and connect to.

[0007]

In the above-described conventional example, a speaker cable is inserted into a through hole in a direction perpendicular to the axis of the speaker terminal with respect to the speaker terminal to be erected, and the speaker cable is not connected by being fastened by a fastening member. However, there is a problem that the position and the direction of the through hole are difficult to understand due to the fastening member and other speaker terminals.

When a large number of speaker terminals are provided so that they can be connected to a large number of speakers, the interval between the speaker terminals becomes narrow, making it difficult to visually confirm the through-holes, and a speaker cable is connected to another speaker terminal. When connected, there is a problem that it becomes difficult to insert and connect the speaker cable into the through hole.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a terminal capable of connecting a cable by a simple operation regardless of the conductor diameter of the cable to be connected.

[0010]

According to a first aspect of the present invention, there is provided a terminal having a notch at an intermediate portion, a columnar main body formed of a conductor, and an opening at one end face of the main body. Having a hollow portion penetrating the notch portion,
An attachment portion provided on the other end surface of the main body, a shaft hole provided opposite to both end surfaces of the notch portion, and a free fit in the notch portion pivotally supported by the shaft hole to rotate. An eccentric ring, a through-hole penetrating both end surfaces of the eccentric ring, and a spring for urging the eccentric ring in a rotating direction and pressing and urging the eccentric ring to one end surface of the cutout portion. It is characterized by:

According to a second aspect of the present invention, in the terminal according to the first aspect, a projection is provided on an inner surface of the through hole of the eccentric ring.

According to a third aspect of the present invention, in the terminal according to the first aspect, a stopper projection is provided on an end face of the eccentric ring pressed against an end face of the notch by the spring. A hole is provided on the end face of the notch to be provided and pressed, the hole being engaged with the projection, and when the projection is engaged with the hole, the hole is provided in the hollow portion provided in the main body and the eccentric ring. The through holes communicate with each other.

According to a fourth aspect of the present invention, in the terminal according to the first aspect, the eccentric ring is movable in an axial direction of the main body against a biasing force to be pressed. The eccentric ring is rotated by detaching the stopper projection from the hole, and the conductor inserted into the hollow portion is held between the main body and the eccentric ring.

Therefore, the conductor of the cable can be inserted and fixed by a simple operation by inserting the conductor of the cable from the axial direction of the terminal, and if the diameter of the conductor can be inserted into the hollow part of the terminal, the diameter of the conductor of the cable can be reduced. It can be connected and fixed regardless of its size.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a terminal according to the present invention will be described with reference to the assembly perspective view of FIG. 1, the external perspective view of FIG. 2, and the cross-sectional views of FIGS. . In FIG. 1, FIG. 2 and FIG.
Is, for example, a speaker terminal or the like provided upright on the rear surface of the housing of the audio amplifier.

The terminal 1 is provided with a notch 3 at an intermediate portion of a cylindrical main body 2, a hollow portion 5 penetrating through the notch 3 from one end face 4 of the main body 2, and the other end face 6.
A mounting portion 7 extending in the axial direction of the main body 2 is provided. Both end surfaces 3a, 3b of the cutout portion 3 have shaft holes 8a, 8b provided facing each other, the end surface 3a has a stopper hole 8c, and the end surface 3b has a coil-shaped compression spring described later. 9 has a hole 8d for locking one end 9a.

The notch 3 has an eccentric ring 1
0 is loosely fitted, and support shafts 10c and 10d are provided opposite to both end surfaces 10a and 10b of the eccentric ring 10 to engage with shaft holes 8a and 8b provided on both end surfaces 3a and 3b of the cutout portion 3, respectively. In combination, the eccentric ring 10 is rotatably supported.
The end face 10a of the eccentric ring 10 has a stopper projection 10e, which is adapted to engage with a stopper hole 8c provided on the end face 3a of the notch 3.

The end face 10b of the eccentric ring 10 has
The compression spring 9 has a hole 10f for locking the other end 9b. The eccentric ring 10 has a through hole 11 penetrating from the end face 10a to the end face 10b.
Has a diameter substantially equal to the hollow portion 5 provided in the main body 2,
When the stopper projection 10e of the eccentric ring 10 is engaged with the stopper hole 8c provided on the end face 3a of the notch 3, the hollow portion 5 and the through hole 11 communicate with each other.

The end face 3b of the notch 3 and the eccentric ring 10
A coil-shaped compression spring 9 having a diameter larger than the diameter of the hollow portion 5 and smaller than the outer diameter of the eccentric ring 10 is attached to the end face 10b. One end 9a of the compression spring 9 is engaged with a hole 8d provided in the notch 3, and the other end 9b of the compression spring 9 is engaged with a hole 10f provided in an end face 10b of the eccentric ring 10. Stop the eccentric ring 10
Is biased by a compression spring 9 so as to rotate clockwise as indicated by an arrow A in FIG.

Further, the compression spring 9 applies an urging force so as to press the eccentric ring 10 against the end face 3b of the notch 3. Therefore, the stopper projection 10 e provided on the end face 10 a of the eccentric ring 10 is
b, and is engaged with a stopper hole 8c provided in the end face 3a of the notch 3.

2 against the urging force of the compression spring 9.
When the eccentric ring 10 is moved in the axial direction of the main body 2 to remove the stopper projection 10e from the stopper hole 8c as shown by the arrow B, the eccentric ring 10 rotates clockwise, and the stopper projection is formed. Reference numeral 10e is configured such that the end surface 3b of the cutout 3 contacts the outer peripheral surface of the main body 2 and stops.

On the inner surface of the through hole 11 of the eccentric ring 10,
As shown in FIG. 3A, a protrusion 12 may be provided.
The projection 12 has a plurality of annular projections each having a triangular cross section and projecting at the top. Therefore, the conductor is pressed against the sandwiched conductor, so that the conductor is hard to come off even if it is pulled. In addition, the protrusion 12 may be provided in a spiral shape, or a plurality of conical protrusions may be continuously provided.

Terminal 1 having the above configuration
Is the end face 3 of the notch 3 with the stopper projection 10e.
a into the state where the hollow portion 5 and the through-hole 11 are communicated with each other, and
Is inserted into the hollow portion 5 from the end face 4 of the main body 2. Desirably, the conducting wire 45 a has a length that penetrates the through hole 11 of the eccentric ring 10.

When the conductor 45a is inserted into the hollow portion 5, the eccentric ring 10 is moved in the direction shown by the arrow B in FIG. 2 against the urging force of the compression spring 9 to move from the stopper hole 8c to the stopper projection 10e. 3B, the eccentric ring 10 is rotated clockwise by the urging force of the spring 9 so that the lead wire 45a is held between the main body 2 and the eccentric ring 10, and the main body 2 and the lead wire 45a are separated from each other as shown in FIG. It becomes conductive.

[0025]

According to the present invention, the conductor of the cable can be inserted and inserted into the hollow portion of the terminal by inserting the conductor of the cable from the axial direction of the terminal, electrically connecting and fixing the cable by a simple operation. If it is a diameter, it can be electrically connected and fixed regardless of the diameter of the conductor wire of the cable.

[Brief description of the drawings]

FIG. 1 is an assembled perspective view of a terminal showing one embodiment of the present invention.

FIG. 2 is an external perspective view of a terminal showing one embodiment of the present invention.

FIGS. 3A and 3B are cross-sectional views of a terminal showing one embodiment of the present invention, wherein FIG. 3A shows a state before connection of a conductor, and FIG.

FIG. 4 is a schematic configuration diagram of a terminal showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Terminal 2 Main body 3 Notch 3a End face 3b End face 4 End face 5 Hollow part 6 End face 7 Attachment part 8a Shaft hole 8b Shaft hole 8c Stopper hole 8d Hole 9 Spring 9a End 9b End 10 Eccentric ring 10a
End face 10b End face 10c
Support shaft 10d Support shaft 10e
Stopper projection 10f hole 11
Through hole 12 Projecting part 41 Speaker terminal 42
Base 43 Through hole 44
Terminal screw part 45 Speaker cable 46
Tightening member 47 Mounting part 48
End face

Claims (4)

[Claims] 1. A column-shaped main body formed of a conductor provided with a cutout portion in an intermediate portion, a hollow portion having an opening at one end face of the main body and penetrating through the cutout portion, and another end of the main body. A mounting portion provided on one end surface, a shaft hole provided opposite to both end surfaces of the notch portion, and an eccentric ring that is pivotally supported by the shaft hole and loosely fits into the notch portion and rotates. A through hole penetrating both end faces of the eccentric ring, and a spring that urges the eccentric ring in a rotating direction and presses and urges the eccentric ring on one end face of the cutout portion are provided. Terminal. 2. The terminal according to claim 1, further comprising a protrusion protruding from an inner surface of the through hole of the eccentric ring. 3. The terminal according to claim 1, wherein a stopper projection is provided on an end face of the eccentric ring pressed by the spring against an end face of the notch, and the end face of the notch pressed is provided on an end face of the notch. A terminal provided with a hole that engages with a projection, wherein when the projection is engaged with the hole, a hollow portion provided in the main body and a through hole provided in the eccentric ring communicate with each other. 4. The terminal according to claim 1, wherein the eccentric ring moves in the axial direction of the main body against a biasing force to be pressed, thereby detaching the stopper projection from the hole. The terminal, wherein the eccentric ring rotates, and the conductor inserted into the hollow portion is held between the main body and the eccentric ring.