JPH11273542A - Fuse attachment and detachment clip usable both for multi-fuse and for mini-fuse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fuse attachment and detachment clip usable both for a blade type multi-fuse and for a blade type mini-fuse. SOLUTION: Engaging claws 5, 5 capable of elastically pinching a multi-fuse L while being fitted in a recessed part 15 with a wide width are formed to be a V-shape in the center parts in the inner faces of the lower ends of two right and left symmetric flat plate-like legs 1, 1 and engaging claws 2, 2 capable of elastically pinching a mini-fuse M while being fitted in a recessed part are formed to be a V-shape in the upper part in the front and rear parts of the engaging claws 5, 5 in the manner that the claws 2, 2 are set further inward than the tip ends of the engaging claws 5, 5. Further, horizontal shoulders 6a are formed in the lower faces of the root parts of the engaging claws 5, 5 and crosspiece-like projected parts 9 capable of pushing a head part of the mini-fuse M are formed above the engaging claws 5, 5 and the upper parts of the crosspiece-like projected parts 9 are joined by a flexible joining part 11 to give this fuse attachment and detachment clip usable both for the multi- fuse and the mini-fuse.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blade type multi-fuse (hereinafter simply referred to as "multi-fuse") and a blade type mini-fuse (hereinafter simply referred to as "mini-fuse") to be mounted on a female terminal of a fuse box.
The present invention relates to a fuse attachment / detachment clip which can be used for both insertion and removal of a fuse.

[0002]

2. Description of the Related Art In recent years, fuses for vehicles, especially automobiles, have been strongly reduced in size, and small mini-fuses as shown in FIG. 8 have recently been developed in place of conventional blade-type fuses. Further, a multi-fuse as shown in FIG. 7 in which the mini-fuse is multi-pole type has been developed, and these two fuses are sometimes used together in one automobile.

A multi-fuse L is, as shown in FIG.
Plural blades 1 connected by a fusible body (not shown)
The upper half of each of the second and second parts 12 and 12 is covered with an insulative housing 13 having a flat head 14 and an inverted U-shaped wide recess 15 is formed at the center of both sides of the housing to form the wide recess 15.
Is formed with a shoulder 15a at the upper end of the head.

As shown in FIG. 6, a mini-fuse M is provided with an insulative body (not shown) that connects the upper halves of two small-sized blades 16 and 16 with a flat head 18. The housing is covered with a housing 17 and two grooves 19, 19 are formed on both sides of the housing.
9, shoulder portions 19a, 19a are formed at the upper end, respectively.

[0005]

However, when a fuse for a vehicle is to be attached or detached, both the multi-fuse L and the mini-fuse M must be handled. In order to use these types of fuse attachment / detachment clips, it was necessary to confirm which type of fuse was used, and to use it properly for each fuse.

Further, the fact that the two types of fuse attaching / detaching clips are always held often causes loss.
Such proper use was troublesome.

For this reason, the inventor of the present invention has devised and put to practical use a fuse detachable clip which is compatible with two types of fuses every time a new type of fuse is developed (Utility Model Registration No. 2552014, No. However, these conventional products cannot be applied to a recently developed multi-fuse L having a new structure.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. As shown in FIG. 7, the shoulder 15a of the multi-fuse L is located at the center of the side of the housing. Then, as shown in FIG.
Utilizing the fact that 9a and 19a are separately located on the left and right sides of the housing, the detachable clips for the multi-fuse L and the mini-fuse M are integrated to improve the usability.

That is, in the present invention, the multi-fuse L can be elastically sandwiched in the wide recess 15 at the center of both sides of the housing 13 at the center of the lower end inner surfaces of the two symmetrical flat legs 1, 1. The locking claws 5 and 5 are provided in a C-shape facing upwards inside, and above the front and rear portions of the locking claws 5 and 5,
Mini-fuse M housing 17 Double grooves 1 on both sides
Locking claws 2, 2 which can be elastically clamped by being fitted to 9, 19, are provided in a shape of “C” facing upward and inward from the tips of the locking claws 5, 5. A horizontal shoulder 6a is formed on the lower surface of the base of the pawl 2,2, and the locking pawl 2,2 is formed.
A multi-fuse, wherein a horizontal bar-shaped projection 9 capable of pressing the head of the mini-fuse M is provided further above and the upper side of the horizontal bar-shaped projection 9 is connected by a flexible connecting portion 11; This is a clip for attaching and detaching a fuse that also serves as a mini-fuse.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a most preferred embodiment of a fuse attaching / detaching clip according to the present invention.
Are two plate-like legs symmetrically formed of an insulator such as a synthetic resin. At the center of the lower end inner surfaces of the plate-like legs 1 and 1, both sides of the housing 13 of the multi-fuse L shown in FIG. A pair of locking claws 5, 5 which can elastically clamp the wide concave portion 15 at the center of the surface are provided in a C-shape toward the upper side inside, and the hooking shoulders 4, 4 are formed at the upper end of the inner surface. .

Therefore, the lower surfaces of the opposing locking claws 5 are flared slopes 3, respectively, and the leading end of the detachable clip is applied to the head 14 of the multi-fuse L to be downward. When pressed, the heads 14 of the multi-fuse L are guided to the center position by the action of the slopes 3 and the tip of the detachable clip is opened as shown in FIG.
Fig. 3 (B)
As shown in FIG. 5, the head 14 of the multi-fuse L fits over the locking claws 5, 5 due to the flexibility of the connecting portion 11.

In the state shown in FIG. 3 (B), the head 14 of the multi-fuse L has a horizontal shoulder 6a on the lower surface of the base of the locking claws 2, 2, and the locking claws 5, 5, and a hooking shoulder 4, 4 on the upper end of the inner surface. The vertical movement is restricted in between, so that the multi-fuse L can be pulled out and inserted.

Further, above the front and rear portions (both outer portions as viewed from the side) of the locking claws 5, 5, a mini fuse M shown in FIG.
The pair of locking claws 2, 2 which can be elastically sandwiched by being fitted in the two concave grooves 19, 19 on both side surfaces of the housing 17, are respectively formed in a C-shape facing upwards inside. A horizontal shoulder 6a is formed on the lower surface of the base of the locking claw 2, 2, and the shoulders 7, 7 are formed at the upper end of the inner surface.
Is formed.

The distance between the horizontal shoulder 6a on the lower surface of the base of the locking claw 2, 2 and the hooking shoulder 4 of the locking claw 5, 5 is determined by the distance between the head 14 of the multi-fuse L and the shoulder 15a. It is formed slightly larger than the size of.

Accordingly, the lower surfaces of the opposing locking claws 2 are also formed with flared slopes 6, respectively, and the tip of the detachable clip is applied to the head 18 of the mini fuse M to be downward. When pressed, the heads 18 of the mini-fuse M are first guided to the center position by the action of the slopes 3, 3 at the tips of the locking claws 5, 5, and the tip of the detachable clip is moved to the position shown in FIG.
As shown in FIG.
Contact 6

At this time, since the locking claws 5, 5 are located at the center of the detachable clip, they are kept from being fitted into the left and right concave grooves 19, 19 of the mini fuse M. By further pressing down on the detachable clip, the detachable clip is further expanded by the action of the slopes 6 and 6,
As shown in FIGS. 4B and 5, the head 18 of the mini-fuse M fits over the locking claws 2, 2 due to the flexibility of the connecting portion 11.

In the state shown in FIG. 4 (B), the head 18 of the mini fuse M has the hooks 7, 7 at the upper ends of the inner surfaces of the locking claws 2, 2.
Up and down movement is restricted between the lower end portion 10 of the horizontal bar-shaped projection 9 and the mini fuse M can be pulled out and inserted.

Numeral 9 denotes a horizontal bar-shaped projection provided above the locking claws 2 and 2 on the inner surfaces of the symmetrical plate-like legs 1 and 1, and a lower end portion 10 thereof is hooked to the locking claws 2 and 2. The distance between the shoulders 7 and 7 is determined by the head portion 18 of the mini fuse M and the shoulder portion 19a of the concave groove 19.
The lower end 10 corresponds to the head 18 of the mini-fuse M and serves as a pressing surface when the mini-fuse M is mounted, as shown in FIG.

Reference numeral 11 denotes a flexible connecting portion provided in a bridge shape slightly above the center between the left and right symmetrical plate-like legs 1 and 1 and provided integrally with the plate-like legs 1 and 1. By pressing the upper side surfaces of the plate-like legs 1, 1, the connecting portions 11 are formed by the expanding action of the locking claws 5, the lower slopes 3, 3 or the locking claws 2, 2 lower slopes 6, 6. The lower ends of the two flat legs 1 and 1 are opened by bending, and when the clamping pressure is released, the lower ends of the two flat legs 1 and 1 are closed to a preset interval.

That is, the locking claws 2, 2 and the locking claws 5, 5, in the natural state in which both the plate-like legs 1, 1 are closed, are respectively provided with the concave grooves 1 on both side surfaces of the housing 17 of the mini fuse M.
9 and 19 or between the wide recesses 15 on both sides of the housing 13 of the multi-fuse L.

In addition, regarding the pressing means of the locking claw,
It may be by bending of the synthetic resin itself forming the detachable clip, or a spring may be interposed between the two flat legs.

[0022]

When pulling out the mini-fuse M inserted into the female terminal of the fuse box with the detachable clip shown in FIG. 1, hold the upper portion of the detachable clip and hold the locking claws 2, 2 on both sides of the mini-fuse M. Grooves 19, 19
Press in from above with an aim at the position.

At this time, the connecting portion 11 serving as a fulcrum of the clip
Is integrally formed of synthetic resin and has flexibility. First, the head 18 of the mini fuse M is moved to the center of the clip by the action of the locking claws 5 and the slopes 3 at the tip of the clip. 4A, the tip of the detachable clip is gradually opened, and when the inner surfaces of the locking claws 5 become the same interval as the width of the side surface of the housing 17 of the mini fuse M as shown in FIG. It slides down and hits the slopes 6, 6 on the lower surfaces of the locking claws 2, 2 and stops descending.

By further depressing the detachable clip from the state shown in FIG.
When the head 18 of the mini-fuse M is positioned below the horizontal bar-shaped protrusion 9 beyond the locking claws 2, the lower end of the horizontal bar-shaped protrusion 9 is extended further. The descent stops at 10.

At this time, since the inward elasticity acts on the locking claws 2, the locking claws 2 are locked in the concave grooves 19 on both side surfaces of the housing of the mini fuse M as shown in FIG. Nail 2,
2 is fitted and is hooked on the hooking shoulders 7, 7. If the clip is pulled up in this state, the locking claws 2,
2. The upper shoulders 7, 7 are shoulders 19a of the mini fuse M,
The mini fuse M can be easily pulled out to raise the 19a.

Thereafter, the minifuse M can be easily removed by clamping the upper ends of both sides of the clip with fingers to spread the locking claws 2, 2 of the flat legs 1, 1.

On the contrary, when the mini-fuse M is inserted and arranged in the female terminal of the fuse box, FIG.
As shown in (B), the mini-fuse M is fitted in the clip claws 2 and 2 in advance, and the blades 16 and 16 at the lower end of the mini-fuse M are inserted into the female terminal of the fuse box while holding the center of the clip. When the clip is pressed down, the head 18 of the minifuse M is pressed down at the lower end 10 of the horizontal bar-shaped projection 9 on the inner surface of the clip, so that the minifuse M can be easily inserted and arranged.

On the other hand, when the multi-fuse L inserted into the female terminal of the fuse box is pulled out by the detachable clip shown in FIG. A register is made in the wide concave portion 15 at the center of both sides, and the wide concave portion 15 is pushed from above.

At this time, the connecting portion 11 serving as a fulcrum of the clip
Are integrally formed of synthetic resin and have elasticity, so that the locking claws 5, 5 are gradually opened by the action of the C-shaped slopes 3, 3 on the lower surface thereof, and the locking claws 5, 5 As shown in FIG. 3 (A), when the inner surface is at the same interval as the side width of the head 14 of the multi-fuse L, it slides downward, and the locking claws 2
The horizontal shoulder 6a on the lower surface hits the head 14 of the multi-fuse L and stops descending.

At this time, since the inward elasticity acts on the locking claws 5, the locking claws 5, 15 are formed in the wide recesses 15 on both side surfaces of the housing of the multi-fuse L as shown in FIG. When the clip is pulled up in this state, the hooking shoulders 4, 4 at the upper ends of the locking claws 5, 5 become the shoulders 1 of the multi-fuse L.
Since the 5a and 15a are raised, the multi-fuse L can be easily pulled out.

Thereafter, the multifuse L can be easily removed by pressing the upper end of the clip with a finger to spread the locking claws 5, 5 at the lower ends of the flat legs 1, 1.

Conversely, when the multi-fuse L is inserted and arranged in the female terminal of the fuse box, FIG.
As shown in (B), a multi-fuse L is previously fitted between the locking claws 5, 5 at the lower end of the clip and the locking claws 2, 2, and the multi-fuse L is held by the center of the clip.
When the clip is pushed down by inserting the blade portions 12, 12 at the lower end of the fuse box into the female terminal of the fuse box, the head 14 of the multi fuse L is pushed down by the horizontal shoulder 6a on the lower surface of the locking claws 2, 2, so that the multi fuse L is easily formed. Can be inserted and placed.

[0033]

As described above, according to the present invention, the operator can insert and remove the multi-fuse L and the mini-fuse M into and from the female terminal in the fuse box by using a single detachable clip. It can be done without switching, which has the effect of improving work efficiency.

Furthermore, the present invention has the effect of being ideal for mass production and lightweight and convenient to carry, since the entire clip is formed by integral molding of synthetic resin, so that it can be produced by one-step die-cutting work. is there.

[Brief description of the drawings]

FIG. 1 shows an example of a detachable clip according to the present invention,
(A) is a longitudinal sectional front view, and (B) is a half sectional side view.

FIG. 2 is a partially cutaway perspective view showing an inner surface of the detachable clip according to the present invention by cutting off a lower half of one leg.

FIG. 3 is a longitudinal sectional front view showing an engagement state of a locking claw in the multi-fuse.

FIG. 4 is a longitudinal sectional front view showing an engagement state of a locking claw in the mini fuse.

FIG. 5 is an inner view of a lower leg half showing an engagement state of a locking claw in a multi-fuse.

FIG. 6 is an inner view of the lower half of the leg showing the engagement state of the locking claw in the mini fuse.

FIG. 7 is a perspective view of a multi-fuse.

FIG. 8 is a perspective view of a mini fuse.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 flat leg 2, 5 locking claw 3, 6 slope 4, 7 hooking shoulder 6 a horizontal shoulder 9 horizontal bar-shaped projection 10 lower end 12, 16 blade 13, 17 housing 14, 18 head 15 wide recess 15 a, 19 a shoulder Part 19 Groove L Multi fuse M Mini fuse

Claims (1)

[Claims] An engaging claw (5), which is fitted in a wide recess (15) at the center of both sides of a housing (13) of a multi-fuse (L) and is elastically clamped at the center of the inner surface of the lower end of two symmetrical flat legs (1,1). , 5 are provided in a C-shape facing upwards inside,
The locking claws 2, 2 which can be fitted in the two concave grooves 19, 19 on both sides of the housing 17 of the mini-fuse M and can be elastically clamped are directed upward inside the front and rear portions of the locking claws 5, 5. The locking claws 5, 5 are provided so as to face inward from the tips of the locking claws 5, 5, and a horizontal shoulder 6a is formed on the lower surface of the base of the locking claws 2, 2. A horizontal bar-shaped projection 9 capable of pressing the head of the mini fuse M is provided further above, and the left and right flat legs 1, 1 are relatively positioned above the horizontal bar-shaped projection 9 by a flexible connecting portion 11. A multi-fuse and mini-fuse dual-purpose fuse detachable clip characterized by being connected together.