JPH0310034B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a mounting device for mounting a high-voltage cord for ignition of an internal combustion engine to a tower portion of ignition equipment.

"Prior Art" and "Problems to be Solved by the Invention" Generally, the above-mentioned high-voltage cord is connected to a terminal buried in the tower part of ignition equipment (ignition distributor, ignition coil, spark plug, etc.) . Conventionally, when a high voltage cord is led from a direction approximately perpendicular to the vertical axis of the tower, a roughly L-shaped rubber cap is attached to the tip of the high voltage cord, and the cap is connected to the tower of the ignition equipment. It is designed to be press-fitted into the terminal of the cap and connect the terminal to the end fitting of the high voltage cord inside the cap.

However, depending on the number of cylinders of the target internal combustion engine, the tower parts are densely arranged at important points on the ignition equipment body, so the high voltage cords are individually bent and press-fitted while touching the adjacent caps. This makes it extremely difficult to connect the high-voltage cord in an engine room where the work space is extremely narrow.

It is an object of the present invention to overcome the above-mentioned difficulties of the prior art.

"Means for Achieving the Object" The present invention achieves the above-mentioned object by attaching caps of high-voltage cables housed in a box body all at once to a group of tower sections arranged at key points of the main body of the ignition equipment. The basic idea is as follows:
``In order to connect the high voltage cord group with an L-shaped cap attached to the tip to the respective terminal of the tower part protruding outside the case of the ignition device, the tip of the high voltage cord group is attached to a bottomed box. The caps are comprehensively stored in the body, and inside the box body, the positions of the lower ends of the caps are regulated by a guide frame that engages with the box body, and the boxes are attached to the ignition equipment case. This is accomplished by attaching each of the caps to each of the above-mentioned tower sections at once.

"Examples" and "Operations" A detailed explanation will be given below based on Examples. Referring to FIGS. 1 to 3 showing one embodiment, the ignition device main body 8 has four tower portions protruding concentrated at important points, and each tower portion 1 has a terminal 2. is buried with the tip exposed.

The high voltage cords 3 connected to each of the terminals 2 are led in a group from a direction perpendicular to the direction in which the terminals 2 project. A terminal fitting 4 is attached to the tip of the high voltage cord, and an L-shaped rubber cap 5 is attached to this portion so as to cover the terminal fitting 4.

The electrical connection of the high-voltage cord 3 to the above-mentioned terminal 2 is realized using the terminal fitting 4 provided at the tip of the above-mentioned high-voltage cord 3.
The jacket portion of the cap 5 is located at the connecting portion so as to shield the connecting portion from the outside.

On the other hand, the jacket portion of the cap 5 is connected to the terminal 2.
The tower section 1 extends downward, and is designed to be covered with the tower section 1 described above.

Reference numeral 6 denotes a bottomed box body that accommodates only the tip portions of a group of high voltage cords 3 connected to each of the tower parts 1, and this box body 6 can be attached to the ignition device main body 8. ing.

To be more specific, the box body 6 has a bottomed shape with an open bottom as shown in FIG. 2, and has a cantilever-like elastic locking piece 15 extending downward along the inner side of the peripheral wall. By engaging the locking hole 18 at the free end with the locking pawl 16 provided on the ignition device main body 8, the box body 6 is attached onto the tower group 1. It's becoming like that.

The box body 6 is also provided with a cap guide frame 7 (hereinafter simply referred to as the frame 7) that can be inserted and locked from the bottom (see Fig. 3). A vertically penetrating guide ring 9 that passes through the lower half of each cap 5 of the high voltage cord group 3 is fixed via a rib 10, and the guide ring 9 attaches and locks the box body 6 to the ignition device main body 8. At this time, the caps 5 are arranged to correspond accurately to the vertical axis of the tower section 1 to which they are to be attached. moreover,
The frame body 7 has a cantilever-like locking piece 15 inside the box body 6.
A fitting groove 17 that fits into the box body 6 and a locking piece 15' that engages with a locking claw 16' provided inside the box body 6 are formed on the periphery, and the frame body 7 fits into its own fitting groove. 1
7, the locking piece 15 of the box body 6 is inserted into the box body 6, and the locking piece 15' and the locking pawl 16' engage with each other at an intermediate position, so that the box body 6 is engaged inside the box body 6 without play. It is designed to be fixed in place. Further, the cap 5 has a guide ring 9 on the outer periphery of the cap 5.
A knob-like protuberance 11 is formed which comes into contact with the upper edge of the guide ring 9 when the box body 6 is inserted into the box body 6.
The cap 5 accommodated in the box body 6 has its own raised portion 11 in contact with the upper edge of the guide ring 9 and its own upper edge in contact with the inside of the box body 6 . It is constructed so that it is compressed and accommodated by the ceiling.

Further, an insertion hole 12 for the high voltage cord 3 is bored in the side wall of the box body 6, and the high voltage cord 3 is tightly fitted into the insertion hole 12, and a seal is attached to the edge of the insertion hole 12. The members 14 are mounted in a row without any gaps. That is, a part of the insertion hole 12 is fitted with the seal member 14 sequentially from the enlarged part 13, and the base 5' of the cap 5 closest to the insertion hole 12 is fitted to the enlarged part 13, so that they are in close contact with each other. This ensures that the area remains waterproof.

Further, the locking pawl 16 of the ignition device main body 8 of the above embodiment is colored on the front side as shown in FIG. 1C so that it can be observed from the locking hole 18 of the engaged locking piece 15. , it is possible to visually determine if the box body 6 is partially locked or if the box body 6 is not properly locked.

The high-voltage cord attachment device of the present invention having the above-described structure accommodates one group of high-voltage cables 3 in the box body 6, and then inserts and locks the frame body 7 from below the box body 6 to guide each cable. The cap 5 is attached to the ring 9, and the cap 5 is sandwiched and housed between the upper edge of the guide ring 9, the box body 6, and the ceiling. Next, the box body 6 containing the high voltage cable is covered with the tower group 1 and pressed down by appropriate means, and the box body 6 is attached to the ignition equipment body 8.
Attach and lock. Thus, the caps 5 housed in the box body 6 are attached to the tower group 1, and a large number of high voltage cords and the terminal group 2 are connected simultaneously.

During the above installation, the cap 5 is inserted and held in the guide ring 9 corresponding to the arrangement of the terminals 2, and is held between the guide ring 9 and the box body 6, so that the pushing down force of the box body 6 is reduced. It is transmitted straight to the cap 5, is smoothly attached to the cap 5 without tilting or losing its posture, and has the effect of accurately connecting the high voltage cord.

Next, FIG. 4 shows another embodiment of the present invention, in which the guide ring 9 has a raised portion 11 of the cap 5.
A fitting recess 19 is formed to receive the. According to this embodiment, since the stability of the cap 5 is improved, there is an advantage that the mounting operation becomes smoother.

"Effects of the Invention" As described above, the high voltage cord attachment device of the present invention attaches the caps of the high voltage cord group housed in the box body 6 to the tower group at once, and accurately connects the high voltage cords and the terminals of the tower portion. Since the connection work can be connected to the main body, the workability is greatly improved compared to the connection work using conventional means. Since the tower portion is covered and protected by the waterproof box body 6, the sealing performance of this portion is improved, which has the effect of maintaining good and stable high voltage connection performance.

[Brief explanation of the drawing]

Figure 1: Shows a high-voltage cord attachment device according to an embodiment of the present invention, A is a front view thereof, B is an AA sectional view of A, C is a side view of A, Figure 2: the same as that of the embodiment of Figure 1. Fig. 3 shows the cap guide frame of the embodiment in Fig. 1, A is its front view, B is its top view, Fig. 4 shows the box body, A is its front view, B is its side view; : A partial front view showing another embodiment of the present invention. Main symbols: 1: Tower part, 2: Terminal, 3: High voltage cord, 5: Cap, 6: Box body, 7: Guide frame for cap, 8: Ignition equipment body, 9: Guide ring, 11: Protrusion part, 12: insertion hole, 14: seal member, 15, 15': locking piece, 16, 16': locking pawl, 17: fitting groove, 19: fitting recess.

Claims (1)

[Claims] 1. In order to connect each of the high-voltage cord groups with caps attached to their tips to the respective terminals of the tower part protruding from the outside of the case of the ignition device, the tips of the high-voltage cord groups are enclosed in a bottomed box body. At the same time, inside the box body, the position of the lower end of each of the caps is regulated by a guide frame body that engages with the box body, and the box is attached to the ignition equipment case. A high-pressure cord attachment device for an internal combustion engine, characterized in that the high-voltage cord for an internal combustion engine is installed at once on each of the above-mentioned tower parts.