JP4003148B2 - Multi-fuse and mini-fuse fuse attachment / detachment clip - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a fuse that can be used for both insertion and extraction of 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 detachable clip.
[0002]
[Prior art]
In recent years, there has been a strong trend toward miniaturization of fuses for vehicles, particularly automobiles. Instead of the conventional blade-type fuses, a miniature minifuse as shown in FIG. 8 has recently been developed. A multi-fuse as shown in FIG. 7 having a multi-pole fuse has been developed, and both of these fuses may be used in one car.
[0003]
As shown in FIG. 5, the multi-fuse L is formed of an insulating housing 13 having a flat head 14 on the upper half of a plurality of blades 12, 12 connected by a fusible body (not shown). A wide concave portion 15 having an inverted U shape is formed at the center of both side surfaces of the housing, and a shoulder portion 15 a is formed at the upper end of the wide concave portion 15.
[0004]
In addition, the mini-fuse M has an insulating housing in which the upper half of two small blades 16 and 16 connected by a fusible body (not shown) as shown in FIG. 17 and two concave grooves 19, 19 are formed on both side surfaces of the housing, and shoulders 19a, 19a are formed at the upper ends of the concave grooves 19, 19, respectively.
[0005]
[Problems to be solved by the invention]
However, when performing the fuse attachment / detachment work for a vehicle, it is necessary to handle both the multi-fuse L and the mini-fuse M, so two types of fuse attachment / detachment clips for the multi-fuse L and the mini-fuse M are always required. In the use, it was necessary to check which type of fuse was used and to use it according to each fuse.
[0006]
In addition, the fact that the two types of fuse attachment / detachment clips are always held is often lost, and such use is troublesome.
[0007]
For this reason, the inventor has devised and put to practical use a dual-purpose fuse attaching / detaching clip corresponding to two types of fuses every time a new type of fuse is developed (utility model registration Nos. 2552014 and 2552016). However, these conventional products cannot be applied to the newly developed multi-fuse L having a new structure.
[0008]
[Means for Solving the Problems]
The present invention is for solving the above-described 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, and as shown in FIG. By utilizing the fact that the shoulders 19a, 19a of the fuse M are located separately 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 usability. is there.
[0009]
That is, according to the present invention, the latches that can be elastically held by being fitted into the wide recesses 15 at the center of both side surfaces of the housing 13 of the multi-fuse L at the center of the inner surface of the lower end of the two symmetric plate-like legs 1, 1. The claws 5 and 5 are respectively provided in a C shape facing upward in the interior, and are fitted in two grooves 19 and 19 on both sides of the housing 17 of the mini fuse M above the front and rear portions of the locking claws 5 and 5. The latching claws 2 and 2 that can be elastically held are provided in the shape of a letter C facing the inside upward from the tip of the latching claws 5 and 5 and facing the inner packaging. A horizontal shoulder 6a that can press the head of the multi-fuse L is formed on the bottom surface of the base, and a horizontal beam-like projection 9 that can press the head of the mini-fuse M is provided above the locking claws 2 and 2 and The upper part of the horizontal beam-like projection 9 is connected by a flexible connecting part 11. It is a Chihyuzu and mini-fuse double-duty fuse detachable clip.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a most preferred embodiment of a fuse attaching / detaching clip according to the present invention. Reference numerals 1 and 1 denote two flat legs formed symmetrically with an insulator such as a synthetic resin. A pair of locking claws 5, 5 capable of elastically holding the wide concave portion 15 at the center of both side surfaces of the housing 13 of the multi-fuse L shown in FIG. The hooks 4 and 4 are formed at the upper end of the inner surface.
[0011]
Therefore, the lower surfaces of the opposing latching claws 5 and 5 are diverging slopes 3 and 3, respectively, and when the tip of the detachable clip is pressed downward against the head 14 of the multi-fuse L The heads 14 of the multi-fuse L are guided to the center position by the action of the slopes 3 and 3, the tip of the detachable clip is opened as shown in FIG. As shown in FIG. 5B and FIG. 5, the head portion 14 of the multi-fuse L is fitted into the upper portions of the locking claws 5, 5 due to the flexibility of the connecting portion 11.
[0012]
In the state shown in FIG. 3B, the head 14 of the multi-fuse L is between the horizontal shoulder 6a on the bottom surface of the locking claws 2 and 2 and the hooking shoulders 4 and 4 on the upper surface of the inner surface. The vertical movement is restricted, and the multi-fuse L can be pulled out and inserted.
[0013]
Further, above the front and rear portions (both outer side portions when viewed from the side) of the locking claws 5 and 5 are fitted into two grooves 19 and 19 on both side surfaces of the housing 17 of the mini fuse M shown in FIG. Two pairs of latching claws 2, 2 that can be sandwiched are provided in the shape of a letter “C” so as to face the upper part of the interior, facing the inside of the latching claws 5, 5. A horizontal shoulder 6a is formed on the bottom surface of the base portion, and hooking shoulders 7 are formed at the upper end of the inner surface.
[0014]
The distance between the horizontal shoulder 6a on the lower surface of the base of the locking claws 2 and 2 and the hooking shoulder 4 of the locking claws 5 and 5 is determined by the dimension between the head 14 and the shoulder 15a of the multi-fuse L. It is slightly larger.
[0015]
Accordingly, the lower surfaces of the opposing latching claws 2 and 2 are also diverging slopes 6 and 6, respectively, and when the tip of the detachable clip is pressed against the head 18 of the mini fuse M and pressed downward First, the head 18 of the mini fuse M is guided to the center position by the action of the locking claws 5, 5 and the inclined surfaces 3, 3 at the tip, and the tip of the detachable clip is opened as shown in FIG. Thus, the locking claws 2 are brought into contact with the slopes 6 and 6 on the lower surface.
[0016]
At this time, since the latching claws 5 and 5 are located in the central part of the detachable clip, the state of not being fitted in the left and right concave grooves 19 and 19 of the mini fuse M is maintained. By pushing down the clip, the detachable clip is further expanded by the action of the slopes 6 and 6, and as shown in FIGS. 4B and 5, the head 18 of the mini fuse M is placed on the upper portions of the locking claws 2 and 2. It is fitted by the flexibility of the connecting part 11.
[0017]
In the state shown in FIG. 4B, the head 18 of the mini fuse M is restricted from moving up and down between the latching claw 2, the hooking shoulders 7, 7 at the upper end of the inner surface, and the lower end 10 of the horizontal beam projection 9. The mini-fuse M can be pulled out and inserted.
[0018]
9 is a horizontal rail-like projection provided above the latching claws 2 and 2 on the inner surface of the flat plate-like leg 1 and 1 on the inner side, and the lower end 10 thereof and the hooking shoulder 7 of the latching claws 2 and 2; 7 is formed to be slightly larger than the size of the head portion 18 of the mini fuse M and the shoulder portion 19a of the concave groove 19, and the lower end portion 10 is formed of a mini fuse as shown in FIG. Corresponding to the head 18 of M, it becomes a pressing surface when the mini fuse M is mounted.
[0019]
11 is a flexible connecting portion provided in a bridge shape slightly above the center between the left and right symmetrical plate-like legs 1, 1, and is provided integrally with the plate-like legs 1, 1. By squeezing the upper side surface of 1, 1 and 1, this connecting portion 11 is bent by the expanding action by the inclined claws 3, 3 on the lower surfaces of the locking claws 5, 5 or the inclined surfaces 6, 3 of the lower surfaces of the locking claws 2, 2. The lower ends of both flat legs 1, 1 are opened, and the lower ends of both flat legs 1, 1 are closed to a preset interval when the clamping pressure is released.
[0020]
That is, the locking claws 2 and 2 and the locking claws 5 and 5 are in the natural state where both the flat legs 1 and 1 are closed, respectively, between the concave grooves 19 and 19 on both sides of the housing 17 of the mini fuse M, or the multi-fuse. It is designed so as to clamp between the wide concave portions 15 and 15 on both side surfaces of the L housing 13.
[0021]
In addition, about the clamping means of the said latching claw, you may be by the bending of the synthetic resin itself which forms an attachment / detachment clip, and may interpose a spring between both flat plate-shaped legs.
[0022]
[Action]
When removing the mini fuse M inserted and arranged in the female terminal of the fuse box with the detachable clip shown in FIG. 1, hold the upper portion of the detachable clip and attach the locking claws 2 and 2 to the concave grooves on both sides of the mini fuse M. Align 19 and 19 and push from above.
[0023]
At this time, since the connecting portion 11 serving as a fulcrum of the clip is formed integrally with a synthetic resin and has flexibility, the miniature is first formed by the action of the locking claws 5 and the inclined surfaces 3 and 3 at the tip. The head 18 of the fuse M is guided to the center position of the clip and the tip of the detachable clip is gradually opened. As shown in FIG. When the distance is equal to the width of the side surface, it slides downward and stops against the locking claws 2 and the slopes 6 and 6 on the lower surface.
[0024]
By further pressing down the detachable clip from the state of FIG. 4 (A), the tip of the detachable clip is further expanded by the action of the slopes 6 and 6 on the lower surface of the locking claw 2 and beyond the locking claw 2 and 2 When the head 18 of the fuse M is positioned at the lower part of the horizontal beam projection 9, the fuse M hits the lower end 10 of the horizontal beam projection 9 and stops descending.
[0025]
At this time, since the inward elasticity is acting on the locking claws 2 and 2, as shown in FIG. 4B, the locking claws 2 and 2 are inserted into the concave grooves 19 and 19 on both sides of the housing of the mini fuse M. 2 is fitted and hooked on the hooking shoulders 7 and 7, so that if the clip is pulled up in this state, the hooking shoulders 7 and 7 at the upper end of the latching claw 2 and the shoulders 19a and 19a of the mini fuse M Therefore, the mini fuse M can be easily pulled out.
[0026]
Thereafter, the mini-fuse M can be easily removed by clamping the upper end sides of the clip with fingers and expanding the locking claws 2 and 2 of the flat legs 1 and 1.
[0027]
Conversely, when the mini fuse M is inserted and arranged in the female terminal of the fuse box, as shown in FIG. 4 (B), the mini fuse M is inserted in advance into the latching claws 2 and 2 of the clip, and the center of the clip is inserted. Holding the blade, insert the blades 16 and 16 at the lower end of the mini fuse M into the female terminal of the fuse box and press the clip down. Then, the head 18 of the mini fuse M is held at the lower end 10 of the horizontal beam projection 9 on the inner surface of the clip. Since it is pushed down, the mini fuse M can be easily inserted and arranged.
[0028]
On the other hand, when the multi-fuse L inserted and arranged in the female terminal of the fuse box is extracted with the detachable clip shown in FIG. The wide concave portion 15 is registered and pushed from above.
[0029]
At this time, the connecting portion 11 serving as a fulcrum of the clip is formed of synthetic resin and has elasticity, so that the locking claws 5 and 5 are gradually moved by the action of the C-shaped slopes 3 and 3 on the lower surface thereof. As shown in FIG. 3A, when the inner surfaces of the locking claws 5 and 5 become the same distance as the side width of the head 14 of the multi-fuse L, the locking claws 2 and 5 are slipped downward. 2 The horizontal shoulder 6a on the lower surface hits the head 14 of the multi-fuse L and the descent stops.
[0030]
At this time, since the inward elastic force is applied to the locking claws 5 and 5, the locking claws 5 and 5 are inserted into the wide recesses 15 and 15 on both sides of the housing of the multi-fuse L as shown in FIG. And the hooks 4 and 4 are in a state of being hooked, and when the clip is pulled up in this state, the hooks 4 and 4 at the upper ends of the locking claws 5 and the shoulders 15 and 15a of the multi-fuse L In order to pull up, the multi-fuse L can be easily pulled out.
[0031]
Thereafter, the multi-fuse L can be easily removed by pinching the upper end of the clip with fingers and expanding the locking claws 5 and 5 at the lower ends of the flat legs 1 and 1.
[0032]
On the contrary, when the multi-fuse L is inserted and arranged in the female terminal of the fuse box, as shown in FIG. 3 (B), the locking claws 5, 5 at the lower end of the clip and the locking claws 2, 2 at the upper part thereof. When the multi-fuse L is inserted in between, the blades 12 and 12 at the lower end of the multi-fuse L are inserted into the female terminal of the fuse box and the clip is pushed down to hold the clip nail 2 Since the head 14 of the multi fuse L is pushed down by the horizontal shoulder 6a, the multi fuse L can be easily inserted and arranged.
[0033]
【The invention's effect】
As described above, the present invention allows an operator to insert and remove the multi-fuse L and the mini-fuse M from the female terminal in the fuse box without changing the holding / removing clip with a single combined clip. There is an effect of improving work efficiency.
[0034]
Furthermore, since the entire clip is formed by integral molding with a synthetic resin, the present invention can be produced by a one-step die-cutting operation, so that it is optimal for mass production and has the effect of being lightweight and convenient to carry.
[Brief description of the drawings]
FIG. 1 shows an example of a detachable clip according to the present invention, wherein (A) is a longitudinal front view, and (B) is a half-cut side view.
FIG. 2 is a partially cutaway perspective view showing an inner surface of a detachable clip according to the present invention by cutting off one lower leg half.
FIG. 3 is a longitudinal front view showing an engagement state of locking claws in a multi-fuse.
FIG. 4 is a longitudinal front view showing an engagement state of locking claws in a mini fuse.
FIG. 5 is an inner surface view of a lower leg half portion 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.
DESCRIPTION OF SYMBOLS 1 Flat leg 2, 5 Locking claw 3, 6 Slope 4, 7 Hook shoulder 6a Horizontal shoulder 9 Horizontal rail-shaped protrusion 10 Lower end part 12, 16 Blade 13, 17 Housing 14, 18 Head 15 Wide recessed part 15a, 19a Shoulder Part 19 Groove L Multi fuse M Mini fuse

Claims (1)

Locking claws 5 and 5 that can be elastically held by being fitted in wide concave portions 15 in the center of both side surfaces of the housing 13 of the multi-fuse L at the center of the inner surface of the lower end of the two symmetrical plate-like legs 1 and 1 respectively. It is provided in the shape of a letter C toward the inside upper part, and is fitted in the two grooves 19 and 19 on both sides of the housing 17 of the mini fuse M above the front and rear parts of the locking claws 5 and 5 to be elastically sandwiched. The obtained latching claws 2 and 2 are provided in the shape of a letter C facing the inside upward from the front ends of the latching claws 5 and 5, and a multi-fuse is formed on the bottom surface of the base of the latching claws 2 and 2. A horizontal shoulder 6a that can press the head of L is formed, and a horizontal beam-like projection 9 that can press the head of the mini fuse M is provided above the locking claws 2 and 2, and The upper and lower flat legs 1, 1 are relatively connected to each other by a flexible connecting portion 11 on the upper side. Multi-fuse and mini-fuse double-duty fuse detachable clip to be.

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