JPH0313979Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to an electrical insulating cap that covers and protects terminal connection parts. This invention relates to a terminal covering cap that can be increased.

[Conventional technology]

There is a terminal covering cap that covers the terminal connection portion with an insulator to prevent electrical contact with external objects, as shown in FIG. 5.

In the same figure, the terminal 2 of the A electric wire W is a mating part to be electrically connected, and a bolt 1 is installed on the end face, a round hole terminal 2 crimped to the electric wire W is inserted into the bolt 1, and a nut is further inserted. 3 are screwed together and the nut 3 is tightened using the nut tightening tool 4, and the terminal 2 is connected to the mating part A.
A cap 5 for covering the terminal is attached to the terminal 2 and the nut 3.

The cap 5 is made of an electrically insulating material with high elasticity, and has an opening 6 at one end and a cover part 7 having a space in which the terminal 2 and the like are accommodated, and a tube that covers the wire connection part 8 of the terminal 2. 9.

A locking piece 10 is attached to the opening 6 of the cover part 7 from the inner peripheral surface.
is provided protrudingly, and the cap 5 is locked to the mating part A by engaging the locking piece 10 with a flange 11 provided around the mating part A.

The work of connecting the terminal 2 to the mating component A is performed as follows.

First, as shown in FIG. 4, the wire connection part 8 of the terminal 2 of the bare wire at the tip of the wire W is crimped, the tube 9 of the cap 5 is elastically expanded, the terminal 2 is inserted through it, and the As shown in FIG. 5, the electric wire W is inserted into the tube 9.

Next, the terminal 2 is inserted into the bolt 1 of the mating part A to temporarily attach the terminal 2.

Next, the nut 3 is screwed onto the bolt 1 and each terminal 2 is tightened using the fastening tool 4. However, before tightening each terminal 2, the temporarily attached terminal 2 is As a result, the terminal may fall against the bolt 1 or fall off from the bolt 1 due to an external force in the F direction, which has the disadvantage that the terminal assembly work is hindered and the wiring work becomes inefficient.

The present invention has been made to solve this problem, and provides a cap that is temporarily attached to a bolt so that the terminal does not fall against the bolt and does not fall off from the bolt 1.

[Means for solving problems]

The present invention includes an electric wire fixing part that covers an electric wire, a terminal that connects the electric wire, which is fastened to a bolt and a nut, and is attached to a mating part that is electrically connected to the bolt, and covers the electrical connection part of the terminal. In a terminal covering cap having a cover part, both electric wire fixing parts in the shape of a cylinder divided into two are integrally connected via a thin hinge, and the electric wire fixing part is attached to the two electric wire fixing parts in a cylindrical shape. An engaging part that can be locked in a superposed state is provided, and a locking part having a locking arm that engages with a mating part for terminal connection is provided at one end of one of the wire fixing parts, and is attached to the mating part. A terminal covering cap is constructed by connecting a cover portion that covers the wire connecting portion to the lock portion via a thin hinge.

[Effect]

After engaging the lock part with the mating part to which the terminal is to be connected, temporarily attach the terminal with the wire crimped onto the bolt provided on the mating part, and then lock the two-part protective tube in the closed state. If the cable is stopped and the wire is wrapped inside, even if a force is applied to the wire in the direction of the wire falling off, the wire will not fall against the bolt or fall off due to the bolt because it is covered by the protective tube. .

After the temporary wire attachment is completed, the terminal is insulated by overlapping the cover portion with the lock portion.

〔Example〕

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

Note that the same parts as in the conventional example are given the same reference numerals.

FIG. 2 shows a perspective view of the cap C of the present invention,
The lock portion 12 includes a side wall 14 having a hole 13 in the center, a frame 15 provided around the side wall 14, and a frame 1 of the side wall 14.
A locking arm 16 (see FIG. 1) protrudes from the opposite surface of the frame 15, and a hemispherical wall is connected to one end of the frame 15 via a flexible thin hinge 17. A cover portion 18 is attached.

A locking frame 20 having a hole 19 is attached to the opposite side of the thin hinge 17 of the cover part 18, and the cover part 18 is fixed to the locking part 1 using the thin hinge 17 as a pivot point.
The frame 15 is provided with a protrusion 21 that engages with the hole 19 of the locking frame 20 when the locking frame 2 is overlapped with the locking frame 20.

The protrusion 21 has an inclined surface 21a on the upper surface and a frame 15 on the lower surface.
Since the locking frame 2 has a vertical surface 21b substantially perpendicular to
0 elastically deforms and descends along the inclined surface 21a, the protrusion 21 fits into the hole 19 and engages with the locking frame 20.

The diameter of the inner peripheral surface of the frame 15 is larger than the diameter of the outer peripheral surface of the flange 11 provided on the mating part A, and the tip of the locking arm 16 has a protrusion 16a with a tapered surface that widens outward.

Therefore, when the protrusion 16a of the locking arm 16 is pressed against the mating part A, the locking arm 16 is elastically deformed and the protrusion 16a passes through the mating part A and engages with the mating part A (see FIG. reference).

At this time, the small diameter portion 22 provided on the mating part A is loosely fitted into the hole 13 of the side wall 14.

One end of the locking part 12 is connected to one end of a wire fixing part 23 which has a shape obtained by dividing a rectangular cylinder into two parts, and is connected to the wire fixing part 23 via a flexible thin hinge 24 which has a shape almost the same as the wire fixing part 23. Moving side electric wire fixing part 25
will be installed.

A locking frame 27 having a hole 26 is provided on the opposite side of the thin hinge 24 of the movable wire fixing portion 25 , a protrusion 28 is provided on the wire fixing portion 23 , and the movable wire fixing portion 25 holds the thin hinge 24 . When it rotates as a fulcrum and overlaps the electric wire fixing part 23 to form a cylindrical shape that holds the electric wire, the protrusion 28 fits into the hole 26 and engages the moving side electric wire fixing part 25 and the electric wire fixing part 23. An engaging portion is configured.

Next, a wire wiring operation using the terminal covering cap constructed as above will be explained.

The protrusion 16a of the locking arm 16 is pressed against the flange 11 of the mating part A to lock the locking portion 12 to the flange 11, as shown in FIG.

The lock part 12 is connected to the mating part A by the protrusion 16a of the locking arm 16 and the side wall 14 which is loosely fitted into the small diameter part 22.
Since it is held in place, it is locked against the mating part A without wobbling.

Next, insert the round hole terminal 2 to which the electric wire W is connected through the bolt 1 of the mating part A, and
5 is superimposed on the wire fixing portion 23, and the engagement frame 27 is engaged with the protrusion 28.

In this way, since the electric wire W is held by the electric wire fixing part 23 and the moving electric wire fixing part 25, the temporarily attached terminal 2 may fall against the bolt 1, or the bolt 1 may fall down.
It won't fall off any more.

After completing the temporary installation work of each terminal, tighten the nut 3 to the bolt 1, and attach the cover part 18 to the lock part 12.
When they overlap, the engaging frame 20 engages with the protrusion 21, and the terminal connection portion is insulated and protected by the terminal covering cap.

〔effect〕

As described above, after temporarily attaching the terminal to the mating component, the two wire fixing parts overlap each other in a single action, and the two wire fixing parts hold the wire to prevent the terminal from tipping or falling off. This eliminates the problem of inefficiency in wire wiring work due to terminals tilting or falling off during temporary installation, and the wire wiring work is carried out smoothly and the work time is shortened.

[Brief explanation of the drawing]

Figures 1 and 2 show embodiments of the present invention.
The figure is a longitudinal sectional view of the cap that covers the fastened terminal, Figure 2 is a perspective view of the cap for covering the terminal, and Figure 3 is a perspective view of the cap for covering the terminal.
4 is a perspective view of a terminal with an electric wire, and FIG. 5 is a perspective view of a conventional terminal covering cap and the like. A...Mating part, C...Terminal cover cap,
W...Wire, 1...Bolt, 2...Terminal with round hole, 3...Nut, 8...Wire connection part, 11...
Flange part, 12...Lock part, 13...Hole, 14...
Side wall, 15...frame, 16...locking arm, 14...
...thin hinge, 18...cover part, 19...hole,
20...Locking frame, 21...Protrusion, 22...Small diameter part, 23...Wire fixing part, 24...Thin hinge,
25...Moving side electric wire fixing part, 27...Engagement frame, 2
8... Protrusion.

Claims (1)

[Scope of utility model registration request] An electric wire fixing part that covers the electric wire, and a cover part that covers the electrical connection part of the terminal, which is attached to a mating part where the terminal connecting the electric wire is fastened to a bolt and a nut and is electrically connected to the bolt. In the terminal covering cap, both electric wire fixing parts in the shape of a tube divided into two are integrally connected via a thin hinge, and the electric wire fixing parts are connected to both the electric wire fixing parts in a cylindrical overlapping state. Providing a lockable engaging part,
A lock part having a locking arm that engages with the mating part is connected to one end of one of the wire fixing parts,
A cap for covering a terminal, characterized in that a cover part that covers a wire connection part attached to the mating part is connected to the lock part via a thin hinge.