JP2001230026A - Fitting structure of connecting terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fit a connecting terminal on to a chassis simply and at low cost. SOLUTION: The connecting terminal is composed of a terminal part 2 with a male screw 2a and a flange part 4, between which, a groove 6 is formed except for the part of joint shaft. In fitting the connecting terminal 1 to a chassis 8, the connecting shaft part of the connecting terminal 1 is made to face a cut-out part 81a formed on a side wall 81 to be fitted in such a manner that one end face of the terminal part 2 and one end face of the flange part 4 pinch the inner and outer faces of a side wall of the chassis 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection terminal mounting structure.

[0002]

2. Description of the Related Art In general, a connection terminal 10 attached to a chassis such as a tuner, as shown in FIG.
A terminal portion 11 having an external thread 11a formed therein;
A stopper 12 having an outer diameter larger than the outer diameter is integrally formed, and a core wire 13 is provided at the center thereof.

[0003] Such a connection terminal 10 is connected to a chassis 14.
When mounted on the chassis 14, as shown in FIG.
Terminal portion 1 is attached to mounting hole 141a formed in one side wall 141 of the terminal.
After inserting the nut 1, the nut 15 is screwed into the male screw 11a of the terminal portion 11 protruding from one side wall 141 of the chassis 14, thereby fixing the terminal.

Attempts have also been made to fix the terminal portion 11 to the chassis 14 by soldering.

[0005]

However, in such a mounting procedure of the connection terminal 10, the hole diameter of the mounting hole 141a of the chassis 14 is larger than the outer diameter of the terminal portion 11 (male screw 11a) of the connection terminal 10. If you make it too big, nut 1
The looseness of 5 causes play. Further, in order to insert the terminal portion 11 of the connection terminal 10 into the mounting hole 141a of the chassis 14, it is necessary to move the connection terminal 10 in the horizontal direction, which has a disadvantage that the operation becomes complicated. In addition, there is a problem that mounting parts such as the nut 15 and solder are required, and the cost is increased.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a connection terminal mounting structure capable of easily and inexpensively mounting a connection terminal on a chassis.

[0007]

According to the present invention, there is provided a connection terminal mounted on one side wall of a chassis, wherein the connection terminal has a terminal portion formed with an external thread and a flange portion, and the terminal portion and the flange portion. A groove is formed leaving the connecting shaft between
The groove is formed to have a width corresponding to the thickness of the chassis, and the connection shaft is fitted into a notch formed on one side wall of the chassis.

According to the present invention, since the connection shaft of the connection terminal can be mounted by fitting it into the notch of the chassis, the connection terminal can be easily mounted, and the nut and the solder can be mounted. This eliminates the need for mounting parts such as the above, thereby suppressing an increase in cost. Here, by caulking the flange portion to the chassis, it is possible to securely fix the chassis to the chassis.

In the present invention, if the outer diameter of the flange portion is larger than the outer diameter of the terminal portion, even if a lateral force acts on the connection terminal, the connection terminal is supported by the large outer diameter flange portion. And the stability can be improved.

In the present invention, the terminal portion is integrally formed with a terminal flange portion having a diameter larger than the outer diameter of the male screw, and a groove is formed between the terminal flange portion and the flange portion except for the connecting shaft portion. You have
Since the inner and outer surfaces of one side wall of the chassis are sandwiched between the terminal flange portions of the terminal portions, the stability is further improved. Here, the terminal flange can be swaged together with the flange to the chassis, in which case the fixing strength is further improved.

In the present invention, if the cross section of the connecting shaft is rectangular, unintended rotation of the connection terminal attached to the notch of the chassis can be prevented.

In the present invention, when the cross section of the connecting shaft portion is substantially oval, unintended rotation of the connected connecting terminal can be prevented, and the connection terminal can be easily fitted into the notch of the chassis. It can be carried out.

In the present invention, if the cutout portion is formed with a cut-and-raised cutout facing the flange portion of the connection terminal fitted into the cutout portion of the chassis or a position corresponding to the terminal flange portion, the cutout is formed along the cutout. By raising the cut-and-raised piece, the cut-and-raised piece can be engaged with the outer peripheral surface of the flange or the terminal flange, and the connection terminal can be reliably positioned at the set position.

In the present invention, if the opening width of the opening edge of the cutout portion of the chassis is smaller than the outer diameter or width of the connection shaft portion, the connection terminal from the cutout portion is independent of the cross-sectional shape of the connection shaft portion. Can be prevented from coming off. In this case, in order to fit the connection terminal into the notch, the opening edge of the notch may be placed between the terminal and the flange, or with the terminal flange of the terminal, against the elasticity of the chassis. It may be slightly deformed while being sandwiched between the flanges.

In the present invention, when the opening edge of the cutout portion of the chassis is cut off to form a chamfered portion, it is possible to guide the fitting of the connection shaft portion of the connection terminal,
The work of fitting the connection terminal can be performed smoothly.

[0016]

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

FIG. 1 shows an example of a connection terminal 1 employed in the connection terminal mounting structure of the present invention.

The connection terminal 1 includes a terminal portion 2 on which a male screw 2a is formed, a connection shaft portion 3 integrally connected to one end surface of the terminal portion 2, and having a diameter smaller than the outer diameter of the terminal portion 2. A flange portion 4 is integrally connected to the other end surface of the connection shaft portion 3 and has substantially the same diameter as the outer shape of the terminal portion 2, and a core wire 5 is provided at the center thereof. A groove 6 corresponding to the length of the connecting shaft 3 is formed between the terminal 2 and the flange 4. The length of the connecting shaft 3, that is, the width of the groove 6 is described later. The length is set to a value obtained by adding a little play to the thickness of the chassis 8.

On the other hand, the chassis 8 to which the connection terminal 1 is mounted is formed of a metal plate, for example, an aluminum plate, and has a U-shaped notch 81a formed on one side wall 81 from the upper edge to the substantially central portion. (See FIG. 2). The width of the notch 81a is substantially equal to the diameter of the connecting shaft 3 of the connection terminal 1, and the shape of the lower end portion of the connecting shaft 3 is
Approximately coincides with the radius of curvature of.

Therefore, in order to attach the connection terminal 1 to the chassis 8, as shown in FIG. 2, after holding the connection terminal 1 so that the terminal portion 2 is located outside the chassis 8, 2 and one end surface of the flange 4 are connected to the chassis 8.
The connecting shaft 3 is dropped into the chassis 8 so as to be in contact with the inner and outer surfaces of the one side wall 81, respectively, and then the flange 4 is swaged.
Can be fixed.

As a result, the connection shaft 3 of the connection terminal 1 can be fitted into the notch 81a of the chassis 8 and attached by caulking the flange 4, so that the connection terminal 1 can be easily attached. While being able to
Mounting parts such as nuts and solders are not required, thereby suppressing an increase in cost.

FIG. 3 shows a modification of the connection terminal 1 described above.

This connection terminal 1 is the same as the connection terminal 1 shown in FIG.
, The outer diameter of the flange portion 4 is formed larger than the outer diameter of the terminal portion 2.

According to the connection terminal 1, the connection terminal 1
Even when a lateral force acts on the flange, the flange can be supported by the flange 4 having a large outer diameter, and the stability is improved.

FIG. 4 shows another example of the connection terminal 1.

The connection terminal 1 includes a terminal portion 2 having a male screw 2a formed therein and a terminal flange portion 21 having a diameter larger than the outer diameter of the male screw 21 integrally formed on one end surface thereof; 2 and a connecting shaft 3 having a diameter smaller than the outer diameter of the terminal 2, and a connecting shaft 3 integrally connected to the other end surface of the connecting shaft 3 and having substantially the same diameter as the outer shape of the terminal 2. , And a core wire 5 is disposed at the center thereof. A groove 6 corresponding to the length of the connecting shaft 3 is formed between the terminal flange 21 and the flange 4 of the terminal 2, and the width of the groove 6 is determined by the thickness of the chassis 8. It is set to a length that adds a little play.

Also in this connection terminal 1, the connection terminal 1 is gripped, the connecting shaft 3 is dropped into the notch 81 a of the chassis 8, and the flange 4 is swaged, thereby forming the chassis 8.
, And the connection terminal 1 can be easily and inexpensively attached. The external thread 2a of the terminal 2
Since the inner and outer surfaces of the chassis 7 are sandwiched between the terminal flange 21 and the flange 4 having an outer diameter larger than the outer diameter of the above, stability is further improved. In this case, the terminal flange portion 21 can be caulked to the chassis 8 together, and by caulking the terminal flange portion 21 and the flange portion 4 in this way, the fixing strength is further improved.

By the way, in the above-described embodiment,
Although the case where the notch 81a of the chassis 8 is formed from the upper end edge of the one side wall 81 to substantially the center is illustrated, as shown in FIG. There may be. The shape of the connecting shaft 3 is not limited to a circular cross section, but may be any shape such as a rectangular cross section or a substantially oval cross section. At this time, the notch 8
1a may be formed in a shape corresponding to the shape of the connecting shaft 3 (see FIGS. 5 and 6). Such a connection terminal 1
Is advantageous in that unintended rotation of the connection terminal 1 can be prevented. Further, in the case of the connection shaft portion 3 having a substantially oval cross section,
Since the tip is tapered, the work of fitting the notch 81a can be easily performed.

When the connecting shaft 3 is formed in a substantially oval cross section and the notch 81a of the chassis 8 is formed in a substantially oval shape corresponding to the connecting shaft 3, the connecting shaft 3 becomes substantially oval. Is supported by the narrow portion of the notch 81a, and even the notch 81a opened at the lower end edge can be prevented from dropping out of the notch 81a. In this case, in order to attach the connection terminal 1 to the notch portion 81a, the opening edge of the notch portion 81a should be placed between the terminal portion 2 and the flange portion 4 against the elasticity of the chassis 8 or the terminal portion. The second terminal flange 21 and the flange 4 can be fitted by being slightly deformed while being sandwiched between them.

Here, the connection shaft 3 having a substantially oval cross section and the notch 81a having a substantially oval shape have been described. The opening width of the opening edge of the notch 81a of the chassis 8 is determined by the outer diameter of the connection shaft 3. Alternatively, by forming the connecting shaft portion 3 smaller than the width,
Irrespective of the cross-sectional shape of the connecting terminal 1, the connection terminal 1 can be prevented from coming out of the notch 81a.

Further, by forming the chamfered portion 81b by cutting off the edge of the notch 81a on the opening side, the fitting of the connecting shaft 3 of the connecting terminal 1 can be guided. The fitting operation can be performed smoothly (see FIG. 7).

Further, as shown in FIG. 8, the notch 81a of the chassis 8 faces a position corresponding to the outer peripheral surface of the flange 4 of the connection terminal 1 fitted into the notch 81a.
The cut-and-raised piece notch 81x can also be formed. By forming such cut-and-raised piece cuts 81x, after the connection terminal 1 is fitted into the cutout 81a of the chassis 8, the cut-and-raised pieces 811 are raised along the cuts 81x to form the cut-and-raised pieces 811. Can be engaged with the outer peripheral surface of the flange portion 4. As a result, the connection terminal 1 does not come off from the notch 81a, and can be reliably positioned at the set position (see FIG. 10). In this case, the outer peripheral surface of the terminal flange 21 may be supported by the cut-and-raised piece notch 81x.

[0033]

As described above, according to the present invention, the connection terminal can be easily and inexpensively attached to the notch formed in one side wall of the chassis.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of a connection terminal used in the connection terminal mounting structure of the present invention.

FIG. 2 is a perspective view illustrating one embodiment of a connection terminal mounting structure of the present invention.

FIG. 3 is a side view showing a modification of the connection terminal of FIG. 1;

FIG. 4 is a side view showing another example of the connection terminal.

FIG. 5 is a perspective view illustrating another embodiment of the connection terminal mounting structure of the present invention.

FIG. 6 is a front view showing another embodiment of the connection terminal mounting structure of the present invention.

FIG. 7 is a perspective view showing an example of a cutout formed in a chassis used in the connection terminal mounting structure of the present invention.

FIG. 8 is a perspective view showing another example of a cutout formed in a chassis used in the connection terminal mounting structure of the present invention.

FIG. 9 is a perspective view and a side view showing a case where connection terminals are attached to the chassis shown in FIG. 8;

FIG. 10 is a side view showing a conventional connection terminal.

FIG. 11 is an exploded perspective view illustrating a conventional connection terminal mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connection terminal 2 Terminal part 2a Male screw 21 Terminal flange part 3 Connecting shaft part 4 Flange part 6 Groove 8 Chassis 81 One side wall 81a Notch part 81b Chamfer part 81x Notch for cut-and-raised piece

Claims (7)

[Claims] In a connection terminal attached to one side wall of a chassis, the connection terminal has a terminal portion formed with a male screw and a flange portion, and a connecting shaft portion is provided between the terminal portion and the flange portion. A connection terminal, wherein the connection shaft portion is fitted into a notch formed on one side wall of the chassis, the groove being formed to have a width corresponding to the thickness of the chassis. Mounting structure. 2. The connection terminal mounting structure according to claim 1, wherein the outer diameter of the flange is larger than the outer diameter of the terminal. 3. A terminal flange having a diameter larger than the outer diameter of a male screw is formed integrally with the terminal, and a groove is formed between the terminal flange and the flange, leaving a connecting shaft. 3. The connection terminal mounting structure according to claim 1, wherein 4. The connection terminal mounting structure according to claim 1, wherein a cross section of the connection shaft portion is rectangular or substantially oval. 5. A cut-and-raised one-side cut is formed in the notch portion facing a position corresponding to the flange portion or the terminal flange portion of the connection terminal fitted into the notch portion of the chassis. The mounting structure of the connection terminal according to 1, 2, 3 or 4. 6. The connection terminal according to claim 1, wherein an opening width of an opening edge of the cutout portion of the chassis is smaller than an outer diameter or a width of the connecting shaft portion. Mounting structure. 7. The connection terminal mounting structure according to claim 6, wherein an opening edge of the notch of the chassis is cut off to form a chamfer.