JPH10241762A - Terminal mounting structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate attaching/detaching of a terminal and to prevent instrumental failures caused by a bolt falling-off by forming an opening hole in a protective cover, etc., providing a flange in the shaft part of a pressing means having a knob part and a screw part and avoiding the slipping off of the shaft part of the pressing means by an opening/closing member. SOLUTION: A plurality of screw holes 10a are formed in a terminal board 10, and a plurality of slit opening holes 12 are formed in a protective cover 11. A plurality of manual attaching bolts 15 for attaching a press-contact terminal to the terminal plate 10 include a large diameter knob part 16, a small diameter shaft part 17, a screw part 18 and a disk flange 19. The outer diameter of the shaft part 17 is set slightly smaller than the width of the opening hole 12 of the protective cover 11. A plurality of circular through-holes 21 are provided in the center of an opening/closing member 20, and a hole diameter is set slightly larger than the outer diameter of the flange 19 of the manual attaching bolt 15. If a pulling-out force is applied to the manual attaching bolt 15, the flange 19 enters the through-holes 21 of the opening/closing member 20, but its falling-off from the protective cover 11 is prevented by the inner wall surface of the protective cover 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a crimp terminal used for connecting a cable to an electronic communication device or the like.

[0002]

2. Description of the Related Art FIG. 2 is an exploded perspective view showing an example of a conventional terminal mounting structure. This terminal mounting structure has a terminal plate 1 fixed to the device side, and a plurality of screw holes 2 are formed in the terminal plate 1. A mounting bolt 3 for fixing the crimp terminal is screwed into these screw holes 2. A protective cover 4 is disposed on the terminal plate 1 so as to face the terminal plate 1. The protective cover 4 has an L-shaped cross section and covers the crimp terminal. At both ends of the protective cover 4, through holes 6, 6 for penetrating the screw portion of the fixing bolt 5 are formed. Each fixing bolt 5 is screwed into a screw hole 7 provided in a boss at both ends of the terminal plate 1.

On the other hand, a round crimp terminal 8 to be attached has a ring-shaped crimp plate 8 a through which the attachment bolt 3 is inserted, and is attached to the end of a cable 9.

When assembling the conventional terminal mounting structure having the above configuration, each mounting bolt 3 is inserted into the crimping plate 8a of the crimping terminal 8 and screwed into the screw hole 2 of the terminal plate 1 to thereby fix the crimping plate 8a. The head of the mounting bolt 3 presses the terminal plate 1. Thereafter, the fixing bolt 5 is passed through the through hole 6 of the protective cover 4 and screwed into the screw hole 7 of the boss portion of the terminal plate 1, thereby covering each crimp terminal 8 with the protective cover 4.

[0005]

However, in the above-mentioned conventional terminal mounting structure, a normal bolt is used as the mounting bolt 3, so that the mounting bolt 3 is tightened or loosened when the crimp terminal 8 is attached or detached. For this purpose, a tightening tool such as a screwdriver is required, and the mounting bolt 3 may be accidentally dropped when the tightening of the mounting bolt 3 is started or when the mounting bolt 3 is removed from the terminal plate 1. When the mounting bolt 3 is dropped, the bolt 3 is lost or the bolt 3
May come into contact with or enter other components in the device and cause a failure of the device. In addition, when the crimp terminal 8 is attached or detached, the work of removing and removing the protective cover 4 is always required, so that the work and time are required for the work.

[0006]

The present invention has the following arrangement to solve such a problem. <Structure> The terminal mounting structure according to the present invention includes an opening formed in the protective cover, a knob for pivoting operation, a shaft having a screw at the tip, and a manual operation including a flange provided on the shaft. A terminal crimping means, an opening closing member which is located inside the protective cover, passes through the flange of the manual terminal crimping means, and prevents the shaft portion from coming off the opening of the protective cover; The screw portion at the tip of the shaft portion is screwed into the screw hole of the terminal mounting portion, and the crimp terminal is pressed against the terminal mounting portion by the flange. In the above terminal mounting structure, the protective cover and the opening closing member are formed of a transparent material.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below using specific examples. FIG. 1 is an exploded perspective view of the terminal mounting structure according to the present invention, FIG. 3 is an assembled perspective view of the terminal mounting structure, and FIG. 4 is a sectional view of the terminal mounting structure. The terminal mounting structure according to the present invention is a terminal plate 1 fixed to a device (not shown).
0 is provided. The terminal plate 10 is made of a conductive metal, and has a plurality of screw holes 10a formed in the center.

A protective cover 11 faces the terminal plate 10. The protective cover 11 is formed in an L-shaped cross section, and a plurality of slit-shaped opening holes 12 are formed in the center of the cover half extending vertically. Each opening hole 12 opens downward.

At both ends of the cover half of the protective cover 11, through holes 11a through which the screw portions of the fixing bolts 13 pass are provided.
Are formed. On the other hand, bosses 14 are attached to both ends of the terminal plate 10, and each boss 14 is formed with a screw hole 14 a into which the fixing bolt 13 is screwed.

Further, the terminal mounting structure of the present invention includes a plurality of manual mounting bolts 15 for mounting the crimp terminal. Each manual mounting bolt 15 has a large-diameter knob 16, a small-diameter shaft 17 extending from the knob 16, a screw 18 formed at the tip of the shaft 17, and a shaft behind the screw 18. It comprises a disk-shaped flange 19 provided on the portion 17, and the peripheral surface of the knob 16 is knurled. The knob 16 is formed to have a large diameter so that a manual rotation operation can be performed.
Has an outer diameter slightly smaller than the hole width.

An opening closing member 20 is located between the terminal plate 10 and the protective cover 11. This opening closing member 20
Is made of a rectangular plate and has a plurality of circular through holes 2 in the center.
1 is formed. Each through hole 21 is a manual mounting bolt 1
5 has a hole diameter slightly larger than the outer diameter of the flange 19,
The insertion of the flange 19 is enabled. At both ends of the opening closing member 20, through holes 20 a through which the threaded portions of the fixing bolts 13 pass are formed. On the other hand, the round crimp terminal 8 to be attached has a ring-shaped crimp plate 8 a and is attached to the end of the cable 9.

In order to assemble the terminal mounting structure of the present invention having the above configuration, first, the manual mounting bolt 15
The shaft 17 is engaged with the opening 12 of the protective cover 11 from below with the knob 16 of the cover positioned outside the protective cover 11.

Next, the flange 19 of the manual mounting bolt 15
Is inserted into the through hole 21 of the opening closing member 20, and the opening closing member 20 is brought into surface contact with the inner wall surface of the protective cover 11. Finally, the fixing bolt 13 is passed through the through hole 11a of the protective cover 11 and the through hole 20a of the opening closing member 20,
It is screwed into the screw hole 14 a of the boss 14 of the terminal plate 10.

When the assembly is completed, the crimping plate 8a of the crimping terminal 8 is fitted onto the screw portion 18 of the manual mounting bolt 15 as shown in FIG. 4, and the knob 16 is manually rotated. By operating, the screw portion 18 is screwed into the screw hole 10a of the terminal plate 10. Thus, the flange 19 presses the crimp plate 8a against the terminal plate 10, so that the crimp terminal 8 can be fixedly attached to the terminal plate 10 by manual operation.

Incidentally, the terminal mounting structure of the present invention is shown in FIG.
(A) As shown in FIG.
9, and the opening closing member 20 is in surface contact with the inner wall surface of the protective cover 11 to close the opening of the opening hole 12. Therefore, when a pulling force is applied to the manual mounting bolt 15, the flange 19 can enter the through hole 21 of the opening / closing member 20, but the surface is in contact with the inner wall surface of the protective cover 11 and the movement is prevented. The manual mounting bolt 15 does not come off from the protective cover 11. Further, as shown in FIG. 5B, the flange 19 is provided with the through hole 2 of the opening closing member 20.
If the lower wall is moved downward by the dimension difference of L2, the lower wall comes into contact with the lower wall and the further downward movement is prevented, so that the shaft portion 17 of the manual mounting bolt 15 comes out through the opening hole 12 of the protective cover 11. Nor.

Therefore, even when the crimp terminal 8 is attached or detached, the manual mounting bolt 15 can be always held by the protective cover 11 or the like, so that the dropping problem does not occur. In doing so, the work of attaching and detaching the protective cover 11 becomes completely unnecessary.

As shown in FIG. 5 (A), when the manual mounting bolt 15 is retracted, a gap L1 is formed between the distal end surface of the screw portion 18 and the plate surface of the terminal plate 10. Therefore, the attachment and detachment of the crimp terminal 8 can be performed using the gap L1.

In the above embodiment, when the protective cover 11 and the opening closing member 20 are formed of a transparent material, the alignment between the hole of the crimping plate 8a of the crimping terminal 8 and the screw hole 10a of the terminal plate 10 and the manual mounting Screw part 18 of bolt 15
Can be visually observed, so that the workability for attaching and detaching the crimp terminal 8 is improved.

In the above embodiment, a rectangular recess opening upward may be provided in place of the through hole 21 of the opening closing member 20. In this case as well, the manual mounting bolt is inserted while the flange 19 is inserted. It is possible to prevent the shaft portion 17 from coming off from the opening hole 12. The crimp terminal to be attached may be, for example, a crimp terminal having a U-shaped crimp plate.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a terminal mounting structure according to the present invention.

FIG. 2 is an exploded perspective view of a conventional terminal mounting structure.

FIG. 3 is an assembled perspective view of the terminal mounting structure according to the present invention.

FIG. 4 is a sectional view of the terminal mounting structure.

FIGS. 5A and 5B are cross-sectional views illustrating a mechanism for preventing a manual mounting bolt from being detached in the terminal mounting structure.

[Explanation of symbols]

 Reference Signs List 8 Crimp terminal 10 Terminal plate 11 Protective cover 12 Opening hole 15 Manual mounting bolt 16 Knob 17 Shaft 18 Screw 19 Flange 20 Opening closing member 21 Through hole

Continuing on the front page (72) Inventor Makoto Kazima 3-19-2 Nishishinjuku, Shinjuku-ku, Tokyo Japan Telegraph and Telephone Corporation (72) Inventor Yoshifumi Fukuda 3-192-1, Nishishinjuku, Shinjuku-ku, Tokyo Nippon Telegraph and Telephone Telephone Co., Ltd. (72) Inventor Hisagu Kato 3-2-1, Nishishinjuku, Shinjuku-ku, Tokyo Japan Telegraph and Telephone Co., Ltd.

Claims (2)

[Claims] 1. A terminal comprising: a terminal mounting portion provided with a screw hole for mounting a crimp terminal mounted on a cable terminal; and a protective cover disposed opposite to the terminal mounting portion and covering the crimp terminal. In the mounting structure, an opening formed in the protective cover, a knob for rotating operation on the outside of the protective cover, being engaged with the opening from the knob and extending into the protective cover. A shaft portion having a screw portion screwed into the screw hole at the tip, and a flange formed on the shaft portion and pressing the crimp terminal against the terminal mounting portion by screwing the screw portion into the screw hole. Including a manual terminal crimping means, located inside the protective cover, through the flange,
And an opening closing member for preventing the shaft portion from coming off from the opening hole. 2. The terminal mounting structure according to claim 1, wherein said protective cover and said opening closing member are formed of a transparent material.