JPH0645143Y2 - Spark plug support structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a support structure for an ignition plug for supplying sparks to a burner head of a gas appliance for ignition.

[Conventional technology and its problems]

The conventional support structure for the spark plug in the gas appliance is
Referring to the drawings, the spark plug 1 for supplying sparks to the burner head 2 to ignite the burner is a standing piece of a spark plug mounting plate 6 having one end fixed to a support beam 4 supporting a mixing tube 3 with a screw 5. It was held and supported by the section 6a.

By the way, generally, the ignition performance of the spark plug 1 largely depends on the distance L between the discharger 1a of the spark plug 1 and the burner head 2.

However, in the conventional support structure for the spark plug 1 described above, the spark plug 1 is supported only by the upright piece 6a of the spark plug attachment plate 6 which is elastic and formed in a substantially L shape. , Spark plug 1 discharge element 1a and burner head 2
It is said that it is very difficult to maintain a constant distance between the discharger 1a of the spark plug 1 and the burner head 2 because nothing supporting the spark plug 1 is interposed between Had a problem.

The present invention has been made in view of the present situation, and an object thereof is to provide a spark plug support structure in which it is extremely easy to always keep the distance between the discharger of the spark plug and the burner head constant. Is to provide.

[Structure for solving problems]

In order to achieve the above object, in the present invention, in a spark plug support structure in which a spark plug for supplying a spark toward a burner head is held by a spark plug mounting plate, the spark plug mounting plate is provided with a support beam. A bottom portion fixedly attached to the bottom portion, an elastic standing piece extending obliquely upward from a base end portion of the bottom portion, and a spark plug that is extended to both sides of a middle portion of the standing piece and holds the ignition plug. Spark plug holding piece part,
And a positioning piece portion extending from the upper end portion of the standing piece portion in the outer peripheral surface direction of the mixing tube, the positioning piece portion,
It is characterized in that the tip portion thereof is brought into contact with the outer peripheral surface of the mixing tube so as to keep the interval between the discharger of the ignition plug and the burner head constant.

[Action]

Therefore, in the spark plug support structure according to the present invention, when the spark plug is set in the vicinity of the mixing pipe, the tip end of the positioning piece extending from the spark plug mounting plate is mixed. Since the interval between the discharger of the ignition plug and the burner head is kept constant by contacting the outer peripheral surface of the tube, uniform ignition performance can always be easily obtained.

〔Example〕

Hereinafter, the present invention will be described in detail based on an embodiment shown in the accompanying drawings.

As shown in FIGS. 1 and 2, in this embodiment, the spark plug 1 is held and supported by an elastic spark plug mounting plate 6 formed in a substantially L shape.

As shown in FIGS. 3 to 5, the ignition plug mounting plate 6 includes a bottom surface portion 6b formed in a substantially D shape, and a bottom surface portion 6b.
Screw holes 6c, 6c opened in, the upright piece 6a extending obliquely upward from the base end of the bottom surface 6b, and inward from the upper end of the upright piece 6a Positioning piece 6d,
The upright piece portion 6a includes spark plug holding piece portions 6e and 6e extending on both sides of the middle portion of the upright piece portion 6a.

The standing piece 6a has elasticity and is formed to be inclined.

As shown in FIG. 1, the bottom surface portion 6b is fixed to the support beam 4 supporting the mixing tube 3 via the screw 5 screwed into the screw holes 6c, 6c.

The positioning piece 6d is a gap L between the discharger 1a of the spark plug 1 and the burner head 2, which is optimal for ignition (see FIG. 1).
It is formed to have a length that keeps the same, and as shown in FIG.

The spark plug holding pieces 6e, 6e are the constricted portions 1 of the spark plug 1.
It is wrapped around b and holds the ignition plug 1 firmly.

Next, the case where the spark plug 1 is set at a predetermined position by the spark plug mounting plate 6 configured as described above will be described.

First, after the ignition plug 1 is fixed to the standing piece 6a of the ignition plug mounting plate 6 via the ignition plug holding pieces 6e, 6e, the screw hole 6c formed in the bottom surface 6b of the ignition plug mounting plate 6 , 6
The spark plug mounting plate 6 is fixed to the support beam 4 supporting the mixing tube 3 by screwing a screw 5 into c and tightening the screw.

After the mounting of the spark plug mounting plate 6 is completed in this manner, the mixing tube 3 is set on the support beam 4. At this time, the tip of the positioning piece 6d abuts on the outer peripheral surface 3a of the mixing tube 3, and the discharger 1a of the spark plug 1 and the burner head 2 are contacted.
The interval L between and is set to an optimum state.

The tip of the positioning piece 6d is the outer peripheral surface 3a of the mixing tube 3.
In the case where they are not in contact with each other and are separated from each other, the inclination of the upstanding piece portion 6a can be corrected by merely inclining the upright piece portion 6a further toward the mixing tube.

In the above embodiment, the case where the positioning piece portion 6d is integrally extended to the upper end of the standing piece portion 6a has been described as an example, but the present invention is not limited to this, for example, another Of course, it may be formed on the body.

[Effect of device]

As described above, according to this invention, when the ignition plug is set in the vicinity of the mixing pipe, the tip end of the positioning piece extending from the ignition plug mounting plate comes into contact with the outer peripheral surface of the mixing pipe to ignite. Since the gap between the discharge element of the plug and the burner head is kept constant, uniform ignition performance can be obtained very easily, and positioning is easy, which is suitable for mass production. Since the structure is simple, it can be provided at a low price.

[Brief description of drawings]

1 is an explanatory view schematically showing a spark plug support structure according to an embodiment of the present invention, FIG. 2 is a plan view of the spark plug support portion, FIG. 3 is a front view of a spark plug mounting plate, and FIG. FIG. 4 is a left side view of the spark plug mounting plate, FIG. 5 is a bottom view of the spark plug mounting plate, and FIG. 6 is an explanatory view showing a conventional spark plug supporting structure. [Explanation of reference symbols] 1 ... Spark plug, 2 ... Burner head 3 ... Mixing tube, 5 ... Screw 6 ... Spark plug mounting plate 6a ... Standing piece, 6d ... Positioning piece

Claims (1)

[Scope of utility model registration request] 1. A spark plug support structure in which a spark plug for supplying sparks in the direction of a burner head is held by a spark plug mounting plate, the spark plug mounting plate having a bottom surface portion fixed to a support beam, An elastic standing piece extending obliquely upward from the base end of the bottom surface, an ignition plug holding piece extending on both sides of the middle of the rising piece and holding the ignition plug, A positioning piece extending from the upper end of the standing piece toward the outer peripheral surface of the mixing tube,
The ignition plug support structure, wherein the positioning piece portion is configured such that a tip end portion thereof is in contact with an outer peripheral surface of the mixing tube so as to keep a distance between the discharger of the ignition plug and the burner head constant.