JP2552016Y2 - Fuse detachable clip for blade type fuse and mini blade type fuse - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuse attaching / detaching clip which can be used for insertion and removal of a blade type fuse and a mini blade type fuse to be mounted on a female terminal of a fuse box.

[0002]

2. Description of the Related Art As fuses for vehicles, especially for automobiles, blade fuses (hereinafter sometimes simply referred to as "fuses") which have recently been used in place of glass tube fuses, and mini blades which have recently been developed. Type fuses (hereinafter sometimes simply referred to as "mini-fuses"), and these two types of fuses may be used together. As shown in FIG. 4, a blade type fuse L is formed by connecting the upper halves of two blades 12 and 12 connected by a fusible member (not shown) to an insulating housing 13 having a flat head 14. The shoulder 14 is formed by projecting the head 14 of the housing slightly beyond the side surface of the housing.

As shown in FIG. 5, a mini-fuse M has an insulative body (not shown) that connects the upper halves of two small blades 16 and 16 with a flat insulating head 18. The housing is covered with a flexible housing 17 and two grooves 19 are formed on both sides of the housing, and a shoulder 20 is formed at the upper end of the groove.

[0004]

However, since a person who carries out the work of mounting and removing a fuse for a vehicle needs to handle both the blade type fuse L and the mini fuse M, the blade type fuse L and the mini fuse M are always used. The user had to carry two types of fuse attachment / detachment clips in his pocket, and had to check out which type of fuse to use when pulling it out of his pocket. In addition, the fact that the two types of fuse attachment / detachment clips are always held has a high degree of loss, and such proper use has been troublesome.

[0005] For this reason, the present inventor has devised a fuse detachable clip that is used as a blade type fuse and a mini blade type fuse, and filed an application on February 10, 1992 (Japanese Utility Model Application No.
No. -13340). The invention according to the above-mentioned application is such that two types of claws for the mini fuse M and the fuse L are provided in one clip, the structure is slightly complicated, and the width of the clip itself is also slightly wide. Was.

[0006]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned conventional problems, and includes a detachable clip for a blade type fuse L and a miniature fuse M with one kind of locking claw. The dual use of the detachable clip makes it more compact and integrated to improve usability.

That is, according to the present invention, the miniature fuse M can be elastically fitted to and sandwiched in the concave grooves 19 on both side surfaces of the housing 17 of the mini blade type fuse M on the inner surfaces of the lower ends of the two symmetrical legs 1, 1. At the same time, the housing 1 of the blade type fuse L
(3) Locking claws (2, 2) capable of elastically holding both sides are provided in a C-shape facing upward in the interior, and the two legs (1, 1) are provided.
A protrusion 9 capable of pressing the heads of both blade-type fuses is provided above the locking claw on an inner surface of the blade, and the upper part thereof is connected by a flexible connecting portion 11. Type fuse L and mini blade type fuse M
This is a dual fuse detachable clip.

[0008]

Embodiment 1 FIG. 1 is a specific example showing the most desirable form of a fuse attachment / detachment clip according to the present invention. Reference numerals 1 and 1 denote side surfaces of a constant width which are formed symmetrically with an insulator such as a synthetic resin. The two legs have, on the inner surface at the lower end of the legs 1, 1,
Locking claws 2, 2 which can be elastically fitted and held in concave grooves 19, 19 formed on both side surfaces of the housing 17 of the mini fuse M shown in FIG. Hook shoulders 4, 4 are formed. Therefore, the opposing lower surfaces of the locking claws 2, 2 are flared slopes 3, 3, respectively, and the head of the mini fuse M is guided to the center position by the action of the slope.

Numeral 9 denotes a rib-like projection provided on the central inner surface of the left and right symmetrical legs 1, 1, and a lower end 10 thereof and the locking claw 2 are provided.
Between the head 18 of the mini fuse M and the shoulder 2 of the concave groove.
It is slightly larger than the dimension of 0, and is also slightly larger than the dimension of the top surface of the head 14 of the blade type fuse L and the shoulder portion 15, and also serves to reinforce the legs.

Reference numeral 11 denotes a flexible connecting portion provided in a bridge shape slightly above the center between the left and right symmetrical legs 1 and 1 and provided integrally with the legs 1 and 1 and upper side surfaces of both legs. , The connecting portion bends to open the lower ends of the legs, and when the pressure is released, the lower ends of the legs close to a preset interval. In the natural state in which both legs are closed, the locking claws 2, 2 are designed to pinch between the concave grooves 19, 19 on both sides of the housing 17 of the mini fuse M and between both sides of the housing 13 of the blade type fuse L. Have been. Note that the pinching means of the locking claw may be based on the bending of the synthetic resin itself forming the detachable clip, or a spring may be interposed between the legs.

[0011]

When pulling out the mini-fuse M inserted in the female terminal of the fuse box with the detachable clip shown in FIG. 1, hold the upper part of the detachable clip and hold the locking claws 2 at the lower end with the mini-fuse M. Groove 1 on the side of
Push in from the top with the register at the positions of 9 and 19. At this time, since the connecting portion 11 serving as a fulcrum of the clip is integrally formed of synthetic resin and has flexibility, the locking claw 2,
2 is gradually opened by the action of the C-shaped slopes 3 on its lower surface, and slides downward when the inner surfaces of the locking claws 2 and 2 have the same interval as the front width of the housing 17 of the mini fuse M, The lower end 10 of the projection 9 hits the head 18 of the mini-fuse M and stops descending.

At this time, since the locking claw 2 has an inward elasticity, it is fitted into the concave groove 19 as shown in the right half of FIG. If the clip is pulled up in this state, the minifuse M can be easily pulled out since the hooking shoulder 4 at the upper end of the locking claw pulls up the shoulder 20 of the concave groove 19. Thereafter, the minifuse M can be easily removed by pressing the both sides of the upper end of the clip with fingers to spread the locking claws 2 at the lower end of the leg.

Conversely, when the mini-fuse M is inserted and arranged in the female terminal of the fuse box, the mini-fuse M is previously fitted into the locking claw 2 at the lower end of the clip, and the mini-fuse M is held by the center of the clip. When the blades 16 at the lower end are inserted into the female terminal of the fuse box and the clip is pushed down, the head 18 of the mini-fuse M is pushed down at the lower end of the projection 9 of the clip, so that the mini-fuse M can be easily inserted and arranged.

On the other hand, when the blade type fuse L inserted into the female terminal of the fuse box is pulled out by the detachable clip shown in FIG. Push in from above, making sure that it does not come off from 14. At this time, since the connecting portion 11 serving as a fulcrum of the clip is integrally formed of synthetic resin and has elasticity, the locking claws 2 are gradually formed by the action of the C-shaped slopes 3 on the lower surface thereof. When the inner surfaces of the locking claws 2 and 2 have the same width as the width of the side surface of the head 14 of the fuse L, they slide downward and the lower end 1 of the projection 9
When 0 hits the top surface of the head 14 of the fuse L, the descent stops.

At this time, the locking claws 2, 2 are fitted into the side surface of the housing 13 as shown in the left half of FIG. If the clip is pulled up in this state, the fuse L can be easily pulled out. Then, the fuse L can be easily removed by pressing the upper end of the clip with a finger to spread the locking claws 2 at the lower end of the leg.

Conversely, when inserting the fuse L into the female terminal of the fuse box, the fuse L is previously fitted between the engaging claws 2 and 2 at the lower end of the clip and the projection 9, and the central portion of the clip is set. When the blade portion 12, 12 at the lower end of the fuse L is inserted into the female terminal of the fuse box and the clip is pushed down, the head 14 of the fuse L is pushed down at the lower end of the projection 9 of the clip, so that the fuse L can be easily inserted and arranged. .

[0017]

As described above, according to the present invention, the operator can easily insert and remove the blade type fuse L and the mini fuse M from the female terminal in the fuse box with one detachable clip. In other words, the work of extracting the blade type fuse L and the mini fuse M can be performed without particularly holding the clip, which has the effect of improving work efficiency. Furthermore, this invention is ideal for mass production because the whole clip is simple and miniaturized with a simple configuration, and it is made by integral molding of synthetic resin, so it can be completed in one process of die cutting work in production. It has a remarkable practical effect because it is lightweight and convenient to carry.

[Brief description of the drawings]

FIG. 1 is a perspective view of an example of a detachable clip according to the present invention.

FIG. 2 is a side view showing the inner surface of the lower half of one leg in FIG. 1;

FIG. 3 is a front view showing a state in which locking claws on the left and right are engaged with a blade type fuse L and a mini blade type fuse M, respectively;

FIG. 4 is a perspective view of a blade type fuse L currently used.

FIG. 5 is a perspective view of a recently developed mini-blade type fuse M;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Leg 2 Locking claw 3 Slope 4 Hook shoulder 9 Projection 10 Lower end 11 Connecting part 12, 16 Blade 13, 17 Housing 14, 18 Head 15, 20 Shoulder 19 Depressed groove

Claims (1)

(57) [Scope of request for utility model registration] 1. A miniature fuse M can be resiliently fitted into and sandwiched in concave grooves 19, 19 on both sides of a housing 17 of a mini-blade type fuse M on the inner surfaces of lower ends of two symmetrical legs 1, 1 and at the same time, a blade type fuse. Locking claws 2, 2 capable of elastically holding both sides of the housing 13 of L are provided in a C-shape facing upward in the interior, respectively, and the inner surfaces of the two legs 1, 1 are provided with double-blade type fuses. A blade-type fuse and a mini-blade-type fuse, wherein a protrusion 9 capable of pressing the head is provided above the locking claw, and the upper part is connected by a connecting portion 11 having flexibility. Detachable clip.