JPH08222107A - Extracting tool for box relay - Google Patents

Abstract

PURPOSE: To miniaturize a relay box for a vehicle by providing the extracting tool of a box relay, and arranging the box relays at narrow intervals. CONSTITUTION: Projections 12, 13 are formed at different height positions on the opposite faces inside the upper section of a frame body 11 to be inserted into the main body 2 of a box relay 1, and an inward pawl 15 is formed at the end section of the side face formed with the projection 12 at the upper position below the projection 13 formed at the lower position at the interval of the height of the relay main body 2 in a relay extracting tool. When the extracting tool is fitted to the box relay 1, the frame body 11 holds the relay main body 2, and the pawl 15 is coupled with the lower end of the relay main body 2. The extracting tool is pulled up as it is to extract the box relay 1. Fingers are not required to be inserted between the box relays 1 when the box relay 1 is extracted, the box relays 1 and relay sockets are not changed in shape, and conventional ones can be used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for extracting a box relay in a relay box used for power distribution of an automobile or the like.

[0002]

2. Description of the Related Art Conventionally, a plurality of relays have been used for automobile electrical equipment. A plurality of small relays are housed in a relay box and fine wiring is provided inside the relay box. This facilitates assembly work and maintenance.

A small box relay 1 shown in FIG. 8 has a box shape, and in FIG.
Is projected. Further, as shown in FIG. 8 (b), there is also one in which a skirt 5 surrounding the terminal is attached and a skirt 5 formed in accordance with the outer shape of the corresponding relay socket 4 (FIG. 7) is attached.
In order to mount the box relay 1 in the relay box, the relay sockets 4 shown in FIG. 7 are arranged side by side on a plurality of ribs 6 which are vertically and horizontally extended and formed in a mesh shape. The lead wire 8 crimped to the terminal 7 comes out from the back side of the relay socket 4. Then, the box relays 1 are intensively wired in the relay box. In addition, a protrusion 9 for locking the skirt 5 is formed on the side surface of the relay socket 4.

Further, since the contacts of the box relay 1 are consumed, the box relay 1 is often removed because maintenance is required. In this case, as shown in FIGS. 9 and 10, by inserting a finger (thumb and forefinger) a between the box relays 1 juxtaposed to each other, sandwiching the box relay 1 and pulling it upward, the worn box relay 1 is replaced. .

[0005]

By the way, in order to reduce the size of the relay box, in the above-mentioned relay box, the space between the relays is taken into consideration. Therefore, even if the box relay 1 is changed to a small one, the finger a The space for entering was kept at the minimum necessary interval. Due to this shape, the rib 6 between the relay sockets becomes short and the rib 6 becomes hard. This makes the movement of the finger cramped when pulling out the box relay 1. On the other hand, the box relay 1 has terminals 7 of 4 poles or 5 poles or more, and a large force is required when inserting / removing. For example, if the separating force of the box relay 1 is reduced to 10 kg · f or 5 kg · f or less, there is a risk of contact failure of the terminal 7, so that a structure requiring more force is adopted.

It is quite difficult to pull out the box relay 1 from the thus hardened relay box, and there is a risk that the fingers, hands, etc. may be damaged during the work. Therefore, there are some relays that have a sandwiching groove formed in the upper part and a pulling jig is hung on the groove to pull it out.
6-13040), it is necessary to modify the relay,
In addition, new problems arise such as where to place the groove.

An object of the present invention is to provide a tool for extracting a box relay in a narrow space such as a relay box without changing the shape of the box relay.

[0008]

In order to achieve the above-mentioned object, the present invention forms protrusions at different height positions on opposing surfaces on the inside of the upper portion of a frame body to be fitted into the body of a box relay, It is characterized in that an inwardly facing claw is formed at a side end portion on the side where the projection is formed at the upper position, with a height interval of the relay main body provided below the projection formed at the lower position.

[0009]

The present invention is constructed as described above, and when the box relay mounted on the relay box of the automobile is removed, the frame of the extraction tool according to the present invention is lowered so as to be fitted into the box relay. Go. in this case,
If the pawl is inserted slightly obliquely from the box relay, the upper end of the box relay will hit the protrusion at the upper position, so rotate the extraction tool here so that the side with the pawl is aligned with the side of the box relay. Then, when the protrusion formed at the lower position goes over the upper end of the box relay and is positioned on the upper surface of the box relay, this side surface contacts the side surface of the box relay, and the claw engages with the lower end of the body of the box relay. As a result, the extraction tool is attached to the box relay body.

Next, the frame of the extraction tool is held and pulled up. The pawl is engaged with the side edge of the box relay, and the moment is applied to the box relay, but the side surface with the protrusion formed in the lower position supports this force, so the box relay moves upward. Remove from socket.

[0011]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The extraction tool 10 shown in FIG. 1 is for removing the box relay 1, and the box relay 1 is mounted side by side in a relay box of an automobile. The extraction tool 10 has projections 12 and 13 formed on the opposing surfaces on the upper inner side of a frame body 11 fitted into the relay body 2 of the box relay 1 at different height positions (see FIGS. 2 and 3). . In the embodiment, two protrusions 12 are formed side by side in the lateral direction, and one protrusion 13 is formed in the center. However, a plurality of protrusions 13 or a rib extending in one lateral direction may be used. In addition, the protrusion 12 formed at the upper position
An inwardly facing claw 15 is formed at the lower end of the side surface 14 having the. The height interval between the projection 13 and the claw 15 formed at the lower position described above is approximately matched with the height of the relay body 2.

Grooves 16 and 17 which are open upward are formed in the center portions of the upper ends of the side surfaces having the projections 12 and 13, respectively. In addition, there is a stepped step on the outside of both side surfaces 18 without protrusions.
19 is formed, and both side surfaces 18 have a shape in which the lower portion is cut obliquely toward the protrusion side surface 14 at the upper position, and the lower end surface 20 is partially formed.

As shown in FIG. 1, the box relay 1 has a skirt 5 attached to a relay body 2. Relay body 2
The flange 21 formed between the skirt 5 and the skirt 5 may be formed of any member because the relay body 2 and the skirt 5 are integrally formed. In this case, the relay body 2 side is used. Further, the skirt 5 is provided with a plate-like portion 22 which is easily bent, and an engaging hole 22a is formed therein. The engagement hole 22a engages with the projection 9 formed on the side surface of the relay socket 4 described above.

Next, the operation of the extraction tool 10 when the box relay 1 is attached to the relay box will be described.
The box relay 1 is inserted into the relay socket 4 in the relay box, and the extraction tool 10 is inserted into the relay body 2 at a slight angle. As shown in FIG. 4, the extraction tool 10
Insertion is stopped with the projection 12 at the upper position abutting the upper end of the relay body 2, and then the extraction tool 10 is rotated so that the claw 15 is below the relay body 2 so as to stand upright. As a result, the lower portion of the relay body 2 engages with the claw 15, and the protrusion 13 at the lower position gets over the upper end of the relay body 2 and comes into contact with the upper surface. As shown in FIG. It is attached to the main body 2.

When the box relay 1 is pulled out, the box relay 1 can be removed by holding the stepped portion 19 on which the finger a (for example, the thumb and the index finger) is likely to be applied, and pulling up the extraction tool 10 as it is. That is, since the force directed obliquely upward by the action of the claw 15 is received by the opposite side surfaces having the protrusion 13, the box relay 1 can be moved upward. As described above, the two protrusions 12 and 13 function as stoppers to hold the relay position, the stepped portion 19 serves as a non-slip when held, and facilitates gripping, and the finger a can be pulled out without being inserted between the relays. . Further, in the box relay 1 with a skirt, since the projection 9 of the relay socket engages with the engaging hole 22a when it is inserted into the relay socket, a considerable force is required when pulling it out. A lower end portion 20 is formed on the side surface 18 and the lower portion of the side surface 14 is reinforced so that the claw portion of the side surface is not bent outward. Further, the lower end portion 20 may be brought into contact with the upper surface of the flange 21, and the flange 21 may be sandwiched by the claw 15.
The flange 21 may not be formed on the skirt 5 but may be formed on the relay body side.

By doing so, the relay box can be reduced in size because the installation intervals of the box relays can be reduced. Box relay,
Since the relay socket does not need to be modified for extraction, conventional products can be used as they are.

In addition to this, in order to engage the lower end of the box relay 1 and pull out the box relay 1, FIG. 5 and FIG.
The U-shaped jig 23 shown in is used. The jig 23 has inwardly facing claws 24 formed at both ends of the U-shape, and the upper part of the finger is coated or covered with synthetic resin (vinyl chloride or the like). When the box relay 1 is sandwiched by the jig 23, as shown in FIG. 6, a space 26 for inserting the finger a is formed inside the upper part, and it is not necessary to provide a space for inserting the finger a between the relays. Can be miniaturized. Further, when the gripping direction and the direction in which the relays are arranged are orthogonal to each other, the interval between the relays can be made narrower, and in addition, as shown in FIG.
As shown in, the jig 23 in which the distance between the two claws 24 is adjusted to the length of the long side of the box relay 1 is convenient.

[0018]

Since the present invention is configured as described above, by using this extraction tool, the box relay can be easily pulled out without inserting a finger between the box relays of the relay box and pulling it out. As a result, the distance between the relays can be made as close as a few mm of the space for the tool, and the relay box can be downsized. Further, by using such a tool, it is not necessary to newly provide a machining process for the box relay and the relay socket, and the conventional box relay and relay socket can be used, so that the manufacturing cost can be maintained or reduced.

[Brief description of drawings]

FIG. 1 is a perspective view of a box relay and an extraction tool according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of the extraction tool shown in FIG.

FIG. 3 is a sectional view of the extraction tool shown in FIG. 1 when attached.

4 is a cross-sectional view showing a mounting process of the extraction tool shown in FIG.

5 is a perspective view showing an extraction jig that uses a claw portion of the extraction tool shown in FIG. 1. FIG.

FIG. 6 is a side view showing a mounted state of the extraction jig shown in FIG.

FIG. 7 is a perspective view of a socket portion in a conventional relay box.

FIG. 8 is a perspective view showing two shapes of a conventional box relay.

9 is an explanatory diagram when the box relay is removed from the socket shown in FIG.

10 is a side view showing a state of upward movement of the box relay shown in FIG.

[Explanation of symbols]

 1 Box relay 2 Relay body 11 Frame 12, 13 Projection 15 Claw

Claims (1)

[Claims] 1. A protrusion is formed on the facing surface inside the upper part of a frame body inserted into the body of the box relay at different height positions, and the height interval of the relay body is downward from the protrusion formed at the lower position. A box relay extraction tool characterized in that an inwardly facing claw is formed at the side surface end on the side where the projection is formed at the upper position when opened.