JPS636630Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an ignition device for an oil combustor, and more particularly to an ignition device suitable for an oil combustor that is provided with a substrate for attaching a heat shield plate or the like on the outside of a core guide outer cylinder.

Conventionally, in this type of oil combustor, there have been few suitable ignition devices because of the interference caused by the board.
The present invention provides a compact ignition device that allows ignition operation to be performed without any obstruction from the board.

An embodiment of the present invention will be described based on the drawings.

Reference numeral 1 indicates the main part of the ignition system, in which a bent plate 3 is provided at the upper end of a frame 2 formed in an approximately inverted L shape.
An arc-shaped guide groove 5 is provided with the center at the center, and a side plate 6 extending to the side of the frame 2 is provided so that the ignition device can be mounted at an appropriate position on the outside of the core guide outer cylinder constituting the oil combustor. This is what I did. As shown in FIG. 3, guide grooves 7 are formed through the frame 2 and the bent portion 7' of the bent plate 3 formed at the upper end of the frame 2. A lifter 8 fitted into a guide groove 7 transparently provided in a bent portion 7' of a bent plate 3 of the frame 2 is held so as to slide up and down on the inner surface of the frame 2, and the lower end of the lifter 8 is An engaging piece 10 is provided by bending into a letter shape, and a push-up plate 11 is formed at the upper end to engage with the lower end of a combustion cylinder (not shown). Further, the lifter 8 is provided with a vertically elongated hole 12 extending in the longitudinal direction. Further, on the outer surface of the frame 2, a corner portion of an ignition arm 13 formed in a substantially triangular shape is rotatably pivoted by a support shaft 14 provided on the frame 2. An arc-shaped guide groove 5 is formed through the ignition arm 2, and a socket 18 for mounting an ignition heater is attached to the tip of a hook-shaped bent portion formed by extending the upper end of the ignition arm 13.

Furthermore, one end of a guide pin 16 that passes through the guide groove 5 and the elongated hole 12 and holds the frame 2, lifter 8, and ignition arm 13 in a slidable manner relative to each other is fixed to the ignition arm 13.

Reference numeral 15 denotes a spring whose both ends are fixed and stretched at appropriate locations on the ignition arm 13 and the lower bent portion 4 of the frame 2, respectively. This spring can be replaced with other shapes as long as they perform the same function.

Next, the operation of the ignition device of the present invention will be explained.

When the ignition device is in a rest state, the guide pin 16 is in contact with the lower end of the guide groove 5 of the frame 2 and the upper end of the elongated hole 12 of the lifter 8, as shown in the figure, and the lifter 8 and the ignition arm 13 are in a position where neither the lifter 8 nor the ignition arm 13 descends any further. be.

When the ignition lever 9 is pushed down, the tip of the lever rotates upward in a counterclockwise direction, and the lifter 8 is moved through the engagement piece 10 of the lifter 8 that is loosely fitted to the tip.
rises and the push-up plate 11 comes into contact with the lower edge of the combustion tube (not shown) and lifts the combustion tube. When the lifter is further pushed up, the lower end of the elongated hole 12 of the lifter 8 comes into contact with the guide pin 16, and the ignition arm 13 is rotated about the pivot point 14 in the direction of arrow A in the figure via the guide pin 16. . Ignition arm 13
In this case, before the guide pin 16 rotates to the final position where it contacts the upper end of the guide groove 5, the contact 17 provided on the ignition arm 13 and the contact provided on the oil combustor side (not shown) come into contact and are energized. The ignition heater is ignited. Furthermore, the ignition arm 13 continues to rotate and enters inward from the gap formed below the lifted combustion cylinder to the wick position, contacts the wick, and performs the ignition operation.

When ignition is completed and the ignition lever is released, the ignition arm 13 and lifter 8 automatically return to the starting position due to the weight of the combustion tube and the tension of the spring 15.

The configuration of the ignition device of the present invention is as described above. By operating the ignition lever, the lower edge of the combustion tube is pushed up by the push-up plate provided at the upper end of the interlocking lifter, and then the ignition arm is pushed up. The ignition heater installed at the tip of the ignition arm is advanced to the core position in the combustion cylinder by circular motion around the support shaft to perform the ignition operation. A bending plate is provided, and a guide groove is provided at the corner of the bending plate and the frame, so the groove width is widened both on the bending plate side and on the vertical side of the frame. This has the advantage that the groove area is large, which makes it extremely easy to assemble the lifter by inserting it into the guide groove, and it is suitable for mass production.In addition, the lifter can be placed on the inner surface of the frame, and the ignition arm can be placed on the frame. Since they are respectively disposed on the outer surface and are arranged to control sliding motion in parallel, practical effects such as smooth and light operation are achieved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the ignition device of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a partial sectional view taken along the line -- in FIG.

Claims (1)

[Scope of utility model registration request] A lifter 8, which has a push-up plate 11 formed at its upper end that is always in contact with the lower edge of the combustion tube, is inserted into the guide groove 7 provided in the upper end bent portion 7' of the frame 2, which is bent into a substantially inverted L shape. The inner surface of the frame 2 is held slidably up and down, and an arc-shaped guide groove 5 is provided in advance in the frame 2 and a long hole 12 is provided in the lifter 8.
an ignition arm 13 which rotates around a support shaft 14 which is aligned with the guide pin 16 and is pivoted to the frame 2 with the base of the guide pin 16 in contact with the outer surface of the frame 2; Furthermore, an engagement piece 10 provided at the lower end of the lifter 8 is interlocked with one end of an ignition lever 9 that moves the lifter 8 up and down, thereby connecting the ignition arm 13 and the lower end of the frame 2. An ignition device for an oil combustor comprising a spring 15 for returning the ignition arm.