JP3537271B2 - Burners for gas appliances - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a burner for a gas appliance, and more particularly, to a structure for mounting an air amount adjusting means of the burner for a gas appliance.

[0002]

2. Description of the Related Art Conventionally, a gas appliance is provided with a grill burner for cooking fish. As shown in FIG. 8 , for example, the grill burner includes an insertion hole 102 for inserting a nozzle at a center portion of an outer periphery of an inlet side end portion of a mixing pipe main body 101 for supplying an air-fuel mixture to the grill burner main body, and an insertion hole 102. A fixed damper 103 having an air hole 103a for sucking primary air is press-fitted into an outer peripheral side of the insertion hole 102, and a convex portion 104 provided on an outer periphery of the mixing tube main body 101 and a hole portion 105 of the fixed damper 103 are formed. Are mounted so as to fit the concave and convex.

[0003] Then, after an air amount limiting plate 106 for limiting the amount of primary air to be absorbed corresponding to the type of gas and changing the amount of air to the grill burner body is assembled on the outer wall surface of the fixed damper 103, a coil spring is mounted. 107, and a communication pipe 109 provided with a gas ejection nozzle 108 at a tip end thereof is inserted into the insertion hole 102 so as to penetrate the air amount limiting plate 106 and the coil spring 107, thereby fixing the air amount limiting plate 106 to a fixed damper. A grill burner that is pressed and held and fixed to the outer wall surface of the 103 is known.

[0004]

However, in the conventional grill burner for gas appliances, the insertion hole 102
When inserting the gas ejection nozzle 108 and the connecting pipe 109 into the inside, it is necessary to insert the air amount limiting plate 106 into the insertion hole 102 while pressing the air amount limiting plate 106 against the flange 110 of the connecting pipe 109 against the urging force of the coil spring 107. Therefore, the mounting work is very difficult especially in a narrow mounting space that can be entered with only one hand.

[0005] In addition, the fixed damper 1 is changed by changing the gas type.
03 or when the air amount limiting plate 106 is replaced, there is a possibility that the air amount limiting plate 106 may fall into the gas appliance due to the pushing of the coil spring 107 when the air amount limiting plate 106 is pulled out from the fixed damper 103. Removal work was very difficult in a narrow mounting space that could only enter.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to facilitate the work of attaching the air amount adjusting means and the work of inserting the nozzle at the tip of the communication pipe, and the work of removing the air amount adjusting means when changing the gas type. It is to provide a burner for a gas appliance, which facilitates the gas burner.

[0007]

According to the first aspect of the present invention, there is provided an intake port for inhaling fuel gas and air at an end,
A mixing pipe main body for supplying a mixture of fuel gas and air to a burner main body, a communication pipe having a nozzle at a tip end facing a suction port of the mixing pipe main body, and the mixing pipe so as to close the suction port An annular air volume attached to the suction port end of the main body, wherein the distal end of the communication pipe can be inserted into a center insertion hole, and adjusts the air volume sucked into the mixing pipe main body; Adjusting means, a line attached from a radial direction substantially perpendicular to the axial direction of the communication pipe, and a biasing force acts in the axial direction of the air amount adjusting means to press the air amount adjusting means against the mixing pipe main body. and a crafted spring
I have. And the air amount adjusting means is provided in the mixing pipe main body.
Air regulator with air holes for sucking air inside
The joint member, and the air amount adjusting member
The air hole is partially closed to allow air to flow into the burner body.
Having an air amount limiting member that limits the
A connecting pipe support member arranged in the axial direction of the mixing pipe body and
Communication pipe fixing part superimposed on the upper end face of the communication pipe support member
Material, and the wire-working spring is
The biasing force acts in the horizontal direction substantially parallel to the axial direction of the
When the air amount limiting member is pressed against the air amount adjusting member
Both, on both sides of the air amount limiting member sandwiching the connecting pipe
A first contact portion that abuts, and the link that sandwiches the communication pipe;
Abuts on both sides of the tube support member or the connecting tube fixing member
A second contact portion, the first contact portion and the second contact portion.
The contact points of the contact portions are opposed in the axial direction, and
The contact portion and the second contact portion are fitted on the outer periphery of the connecting pipe.
A substantially U-shaped or arcuate first fitting portion to be fitted;
And a second fitting portion is formed.

[0008]

[0009]

[0010]

[0011]

According to the invention described in claim 1, according to the action and the present invention, the air quantity adjusting member of the air amount adjusting means attached to the inlet end of the mixing tube body so as to close the inlet, air amount adjustment The tip of the connecting pipe and the nozzle are inserted into the air amount adjusting member of the means. Thereafter, by mounting the filigree spring from a radial direction substantially perpendicular to the axial direction of the connecting tube, the line
The work spring is connected to the air flow restricting member of the air flow control means and the connecting pipe.
It is held between the holding members. Therefore, the wire spring
The first contact portions are located on both sides of the air flow limiting member
The wire contact spring has a second contact portion sandwiching the communication pipe.
Abuts on both sides of the connecting pipe support member or connecting pipe fixing member
By doing so, the shaft of the air amount limiting member
When the air amount restricting member of the air amount adjusting means is pressed by the air amount adjusting member by a horizontal urging force substantially parallel to the linear direction.
In both cases, the air amount adjusting member is pressed against the mixing tube main body. Thereby, the air amount adjusting means including the air amount adjusting member and the air amount limiting member is fixed to the end of the mixing pipe main body on the suction port side.

That is, since the wire spring is assembled after inserting the distal end of the connecting pipe into the air amount adjusting means, no force against the urging force of the spring is required at the time of the inserting operation. As a result, even in a narrow installation space where only one hand can enter, the work of attaching the air amount adjusting means and the work of inserting the tip of the communication pipe become easy,
The productivity of the gas appliance burner can be improved. In addition,
A point where the first contact portion of the spring contacts the air amount limiting member;
The second contact portion of the wire spring is a connecting pipe supporting member or a connecting pipe.
Since the point of contact with the fixing member is opposed in the axial direction,
No rotational force is generated by the urging force of the filigree spring.
Be certain. Also, when replacing the air amount adjusting means to convert the gas type, if the wire spring is removed, the air amount adjusting means becomes free to the mixing pipe main body and the connecting pipe, and the nozzle and communication When the tube is pulled out from the air amount adjusting means, the air amount adjusting means does not fall due to the pushing by the urging force of the spring. Thereby, even if it is a narrow mounting space where only one hand can enter, the work of removing the air amount adjusting means from the mixing pipe main body becomes easy, and the workability of replacing the air amount adjusting means can be improved.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

FIGS. 1 to 5 show a first embodiment of the present invention.
FIGS. 1 and 2A and 2B show an embodiment.
Is a diagram showing the main structure of the grill burner for gas appliances,
FIG. 3 is a view showing a grill burner main body, a mixing pipe main body, and a connecting pipe support plate.

The gas appliance grill burner 1 is formed in a substantially F-shape, and includes a plurality of stove burners (not shown).
A double-sided grill which is disposed below a substantially central portion of an appliance body (not shown) provided with
A gas mixture passage (gas passage) is formed inside by laminating two metal plates.

The gas appliance grill burner 1 includes a grill burner main body 2 for forming a cooking flame, a mixing pipe main body 3 integrally formed on the upstream side of the grill burner main body 2,
A connecting pipe 4 for supplying fuel gas to the inside of the mixing pipe main body 3, a connecting pipe support plate 5 for supporting the connecting pipe 4, a connecting pipe 4
Pipe fixing plate 6 for fixing the primary air to the connecting pipe support plate 5, air amount adjusting means for adjusting the amount of primary air sucked into the mixing pipe body 3 (in this embodiment, an air amount adjusting member). And a damper holding spring 9 as a wire spring for holding and fixing the air amount limiting plate 8).

The grill burner body 2 has a substantially U-shape,
The mixing tube main body 3 has a substantially U-shaped or substantially C-shaped shape.
An air-fuel mixture flows in from the inside, and two main burners 2a for burning the air-fuel mixture and a transfer flame opening 2b provided to connect them are provided. The two main burner portions 2a protrude in a peninsula shape from both sides of the flash flame opening portion 2b toward the front of the appliance body.

Next, the mixing tube main body 3 is shown in FIGS.
Description will be made based on (a). Here, FIG. 4A is a diagram showing the suction port side end of the mixing pipe main body 3 and the connecting pipe support plate 5. The mixing pipe main body 3 is a so-called Venturi pipe that supplies an air-fuel mixture obtained by mixing fuel gas and primary air into the air-fuel mixture passage of the grill burner main body 2. The mixing pipe body 3 has an inlet 3a for sucking fuel gas and primary air.
Is formed. The mixing tube main body 3 has a cylindrical suction port side end (fitting portion) 3b to which the fixed damper 7 can be fitted.

The connecting pipe 4 is provided with a gas jet nozzle 11 for jetting fuel gas into the mixing pipe main body 3 at an end thereof, and an elongated circular tubular member for connecting the gas jet nozzle 11 and a gas cock (instrument plug) not shown. It is. The communication pipe 4 is provided with an operation switch (not shown) for operating the gas cock on the front surface of the appliance main body, and the grill burner main body 2 is disposed so as to extend forward from the rear end of the appliance main body. It extends from the front side to the rear side in the instrument body.

Next, the connecting pipe support plate 5 is shown in FIGS.
Description will be made based on (a). The connecting pipe support plate 5 is formed by laminating two substantially U-shaped metal plates, and a pair of flange portions (mounting portions) 14 located substantially on the same plane as the axis of the mixing pipe main body 3. Are joined by means such as welding. The connecting pipe support plate 5 is composed of a pair of extension plates 1.
2 and a connecting plate 13 for connecting these extension plates 12.

The pair of extension plates 12 extend substantially in the horizontal direction from the flange portions 14 on both sides located on substantially the same plane passing through the axis of the suction port 3a of the mixing pipe body 3 in the longitudinal direction of the communication pipe 4. Have been. The connecting plate 13 has a connecting pipe 4 at the center.
A semi-circular concave portion 15 for positioning (centering the gas ejection nozzle 11) so that the gas ejection nozzle 11 attached to the tip of the nozzle is located at the axis of the suction port 3a of the mixing pipe body 3 is formed. Have been.

Further, by attaching the connecting pipe supporting plate 5, a substantially rectangular through hole 5a is formed which is surrounded by the suction port side end 3b of the mixing pipe main body 3, the pair of extension plates 12 and the connecting plate 13. ing. On one side of the concave portion 15 of the connecting plate 13, a locking hole 5b for attaching the connecting pipe fixing plate 6 to the connecting pipe support plate 5 is formed. On the other side, a fixing screw 10 is screwed. Screw hole 5c is formed. A gap 16 for externally fitting the fixed damper 7 is formed between the outer periphery of the suction port side end 3b and the pair of extension plates 12.

Next, the connecting pipe fixing plate 6 is shown in FIGS.
Description will be made based on (a) and (b). Connecting pipe fixing plate 6
Is a holding portion 21 for holding the distal end side of the connecting pipe 4 between the connecting plate 13 of the connecting pipe support plate 5, and is provided closer to the gas cock than the holding portion 21, and holds and fixes an intermediate portion of the connecting pipe 4. It is composed of a holding portion 22 and a hook 23 provided between the holding portion 21 and the holding portion 22.

The holding portion 21 has a concave portion 15 of the connecting plate 13.
A concave portion 24 is formed at a position corresponding to. Also,
At the tip of the holding portion 21, a locking piece 25 is formed which is inserted into the locking hole 5b of the connecting plate 13 and locked. Further, a round hole (not shown in the drawing) through which the fixing screw 10 penetrates is formed in the holding portion 21 at a position corresponding to the screw hole of the communication pipe support plate 5.

At both ends of the holding portion 22, a pair of bent pieces 26 bent below the upper end portion are integrally formed. These bent pieces 26 are formed with notches 6a through which the intermediate portion of the communication pipe 4 is inserted. Hook 23
Is formed upright on the upper surface of the holding portion 21 and is formed in a bird's beak shape so that the damper presser spring 9 can be engaged.

Next, the fixed damper 7 will be described with reference to FIGS. 1, 2 and 4 (b). Here, FIG. 4B is a diagram showing the fixed damper 7 and the air amount limiting plate 8. The fixed damper 7 is an air amount adjusting member of the present invention, and is formed into a substantially container shape by press-molding one metal plate.

The fixed damper 7 has an annular base plate 31 and a cylindrical mounting allowance 3 extending from the outer peripheral end of the base plate 31 in a direction parallel to the axial direction of the mixing tube body 3.
2, and an upper end side flange portion 33 formed to protrude from the upper end side of the mounting margin 32 in the outer peripheral direction.

The base plate 31 is connected to the inlet 3 of the mixing tube body 3.
a so as to close the end face of the suction port side end 3b so as to close the end face 3a, and has an insertion hole 7a at the center.
A gas jet nozzle 11 attached to the distal end of the communication pipe 4 is inserted into the insertion hole 7a. The base plate 31 has two air holes 7b on the outer peripheral side of the insertion hole 7a.
have. These air holes 7b are formed by a punching process and communicate between the inside and the outside of the mixing tube main body 3, and are holes for sucking primary air into the mixing pipe main body 3.

When performing optimal combustion in the grill burner main body 2, since the amount of primary air to be taken in with respect to the amount of fuel gas differs depending on the type of fuel gas, the air holes 7b
Is set according to the type of fuel gas. The attachment margin 32 is a part that is fitted and fixed by being press-fitted into the outer peripheral surface of the suction port side end 3b of the mixing pipe body 3.

The upper flange portion 33 supports the connecting pipe when the fixed damper 7 is inserted into the through hole 5a from above during the mounting work for attaching the fixed damper 7 to the inlet end 3b of the mixing pipe body 3. These projections are locked to the extension plate of the plate 5 and are prevented from falling. The upper end side flange portion 33 is formed in an arc shape in an angle range of 140 ° or more and 180 ° or less (preferably 160 °) about the axis of the fixed damper 7.

Next, FIG. 1 to FIG.
This will be described with reference to FIG. The air amount limiting plate 8 is formed in a thin annular plate shape, and has an insertion hole 8a in the center portion into which the distal end portion of the communication pipe 4 and the gas ejection nozzle 11 are inserted. Further, the air amount limiting plate 8 changes the opening degree (opening degree) as a result of partially closing the two air holes 7b of the fixed damper 7 by changing the outer diameter.
An air amount limiting member that limits the amount of primary air sucked into the mixing tube body 3. Thereby, the intake amount of the primary air corresponding to the gas type is set.

Next, FIG. 1 and FIG.
(A) will be described with reference to FIGS. 3 and 5. here,
FIGS. 5A and 5B are views showing the damper presser spring 9. The damper presser spring 9 is a wire spring having a predetermined shape composed of a straight line and a circular arc, is detachably fitted to the outer periphery of the connecting pipe 4, and is sandwiched between the fixed damper 7 and the connecting pipe fixing plate 6. This is an elastic member that exerts a biasing force in a horizontal direction substantially parallel to the axial direction of the mixing pipe main body 3, the communication pipe 4, the fixed damper 7, and the air amount limiting plate 8.

The damper presser spring 9 presses the air flow restricting plate 8 against the outer wall surface of the base plate 31 of the fixed damper 7 and presses the fixed damper 7 on the suction port side end 3 of the mixing pipe body 3.
b, which are fixed by pressing on the lower surface of the extension plate 12 of the connecting pipe support plate 5 at both ends.
Two. The damper presser spring 9 has a first contact portion 43 that contacts the air amount limiting plate 8 and a second contact portion 44 that contacts the mixing tube side end of the holding portion 21 of the connecting pipe fixing plate 6. Is provided.

The first and second contact portions 43 and 44 are formed with substantially U-shaped first and second fitting portions 45 and 46 to be fitted on the outer periphery of the connecting pipe 4. And
Between the substantially V-shaped connecting portion 47 connecting the first and second abutting portions 43 and 44 and the second fitting portion 46, there is provided a coupling member engaged with the hook 23 of the connecting pipe fixing plate 6. An engagement portion 48 is provided.

[Attachment Method of First Embodiment] Next, a method of attaching parts around the nozzle to the mixing tube body 3 of this embodiment will be described with reference to FIG.
A simple explanation will be given based on FIG.

First, the flange portions 1 on both sides of the mixing tube body 3
The gas appliance grill burner 1 in which the pair of extension plates 12 of the connecting pipe supporting plate 5 are connected to the tube 4 by means such as welding is fixed near the bottom of the appliance body.

Next, the left and right portions of the mounting margin 32 of the fixed damper 7 are grasped with two fingers of one hand, and are surrounded by the suction port side end 3b of the mixing pipe main body 3 and the connecting pipe support plate 5 from above. When the fixed damper 7 is inserted into the through hole 5 a, the circumferential end surface of the upper end side flange 33 of the fixed damper 7 is locked on the pair of extension plates 12 of the communication pipe support plate 5. This can prevent the fixed damper 7 from falling from the through hole 5a.

Next, with the two fingers of one hand straddling the connecting plate 13 of the connecting pipe support plate 5, the mounting margin 3 of the fixed damper 7 is set.
2, the upper and lower portions are pinched, and the fixed damper 7 is
2. While slightly floating from 2, the end 3 of the mixing pipe body 3 on the suction port side
The fixed damper 7 is attached to the mixing tube main body 3 by fitting the attachment allowance 32 to the outer peripheral surface of the mixing pipe 3.

Next, after inserting the gas ejection nozzle 11 and the distal end of the communication pipe 4 into the insertion hole 8a of the air amount limiting plate 8, the gas ejection nozzle 11 and the communication pipe 4 are inserted into the insertion hole 7a of the fixed damper 7. The connecting pipe 4 is placed in a concave portion 15 formed in the connecting plate 13 of the connecting pipe supporting plate 5 by inserting the tip of the connecting pipe.

Next, after inserting the locking piece 25 formed at the tip of the holding portion 21 of the connecting pipe fixing plate 6 into the locking hole 5b of the connecting plate 13 of the connecting pipe supporting plate 5, the connecting pipe supporting plate 5 The holding portion 21 of the connecting pipe fixing plate 6 is superimposed on the connecting plate 13, that is, the connecting pipe 4 is held between the connecting pipe supporting plate 5 and the connecting pipe fixing plate 6. Further, the holding portion 22 of the connecting pipe fixing plate 6
The connecting pipe 4 is fixed by inserting the middle portion of the connecting pipe 4 into the notch 6a formed in the connecting pipe 4 and tightening the connecting pipe supporting plate 5 and the connecting pipe fixing plate 6 with the fixing screw 10. Also, it is possible to prevent the tip of the connecting pipe 4 from sticking, and to prevent the axial center of the gas ejection nozzle 11 from being fixed to the fixed damper 7.
(Centering out).

Finally, the first and second locked portions 41 and 42 of the damper presser spring 9 are inserted from above the connecting pipe support plate 5 into the through holes 5a on the side where the hook-like portions 23 are not provided. Thereafter, the first and second fitting portions 45 and 46 are fitted to the outer periphery of the connecting pipe 4 exposed between the air amount limiting plate 8 and the holding portion 21 of the connecting pipe fixing plate 6. Then, the engaged portion 48 of the damper presser spring 9 is hooked on the hook 23 of the connecting pipe fixing plate 6, so that the damper presser spring 9 moves between the air amount limiting plate 8 and the holding portion 21 of the connecting pipe fixing plate 6. Held in between.

Accordingly, the first abutting portion 43 of the damper presser spring 9 abuts on both sides of the air amount limiting plate 8 with the connecting tube 4 interposed therebetween, and the second abutting portion 44 has the connecting portion with the connecting tube 4 sandwiched therebetween. By contacting both sides of the mixing tube side end of the holding portion 21 of the tube fixing plate 6, an axial biasing force of the mixing tube main body 3 acts on the damper presser spring 9, so that the air amount limiting plate 8 allows the fixed damper 8 to move. 7, and the fixed damper 7 is pressed against the inlet side end 3b of the mixing tube body 3. Thus, the air amount adjusting means including the fixed damper 7 and the air amount limiting plate 8 is fixed to the inlet side end 3b of the mixing tube main body 3. Note that the point where the first contact portion 43 of the damper presser spring 9 contacts the air amount limiting plate 8 and the second contact portion 43 of the damper presser spring 9
Since the point at which the contact portion 44 contacts the communication pipe fixing plate 6 is opposed in the axial direction, no rotational force is generated by the urging force of the damper presser spring 9, and the above-described pressing is ensured.

[Effects of the First Embodiment] As described above, the gas appliance grill burner 1 is constructed such that the distal end portion of the connecting pipe 4 and the gas ejection nozzle 11 are fixed to the damper 7 and the air amount limiting plate 8.
After being inserted into the inside, the damper presser spring 9 is assembled from the radial outside of the connecting pipe 4. For this reason, when inserting the gas ejection nozzle 11 at the end of the connecting pipe 4 into the fixed damper 7 and the air amount limiting plate 8, there is no need for a force against the urging force of the spring.

Thus, even in a narrow mounting space where only one hand can enter, the mounting work of the fixed damper 7 and the air amount limiting plate 8 and the inserting work of the distal end portion of the communication pipe 4 and the gas ejection nozzle 11 become easy. The productivity of the gas appliance grill burner 1 can be improved.

When the fixed damper 7 or the air amount limiting plate 8 is exchanged for changing the gas type, the damper presser spring 9 is removed from the space between the air amount limiting plate 8 and the connecting pipe fixing plate 6 to fix the damper. The damper 7 and the air amount limiting plate 8 are free to move in the rotational direction and the axial direction with respect to the mixing tube main body 3 and the connecting tube 4, and pull out the gas ejection nozzle 11 and the connecting tube 4 from the fixed damper as in the conventional case. At this time, the air amount limiting plate 8 does not drop to the bottom surface of the gas appliance due to the pushing by the urging force of the damper holding spring. Thereby, even if it is a narrow mounting space where only one hand can enter, the work of removing the fixed damper 7 and the air amount limiting plate 8 from the mixing pipe main body 3 becomes easy, and the work of replacing the fixed damper 7 or the air amount limiting plate 8 is performed. Workability can be improved.

[Second Embodiment] FIGS. 6 and 7 show a second embodiment of the present invention. FIGS. 6 (a) and 6 (b) show the main structure of a grill burner for gas appliances. And FIG.
(A)-(c) is a figure which showed the damper presser spring.

In this embodiment, the damper presser spring 9 is mounted between the air flow limiting plate 8 and the connecting pipe fixing plate 6 from a radial direction substantially perpendicular to the axial direction of the connecting pipe 4, 8 is a wire-working spring composed of a straight line and a circular arc, in which an urging force acts in the axial direction of No. 8. The damper presser spring 9 has a first contact portion 53 that contacts the air amount limiting plate 8 and a second contact portion 54 that contacts the mixing tube side end of the holding portion 21 of the communication tube fixing plate 6. Are provided symmetrically about the axis of.

The first and second contact portions 53 and 54 are formed with first and second fitting portions 55 and 56 having an arc shape to be fitted on the outer periphery of the connecting pipe 4. A substantially V-shaped connecting portion 57 that connects the first and second contact portions 53 and 54 is provided, and the second contact portions 54 are connected to each other by a substantially inverted U-shaped connecting portion 59.

[0048]

[0049]

[0050]

[0051]

[0052]

[0053]

[Modification] In each of the above embodiments, the mixing pipe main body 3 and the communication pipe supporting plate 5 which is a connecting pipe supporting member are provided separately, but the mixing pipe main body and the connecting pipe supporting member are integrally formed. You may. In addition to the plate member, a block member having a large thickness in the up-down direction may be used as the connecting pipe support member.

In each of the above embodiments, the fixed damper 7 is fitted and mounted on the outer periphery of the inlet end 3b of the mixing tube main body 3. However, the fixed damper 7 is press-fitted or fastened and fixed with a fastening member such as a fixing screw or a fixing screw. May be.

In each of the above-described embodiments, the damper holding spring 9 having a predetermined shape is used as the wire-working spring. However, another shape of a damper holding spring consisting of a straight line and an arc may be used as the wire-working spring .

[Brief description of the drawings]

FIG. 1 is a plan view showing a main structure of a grill burner for a gas appliance (first embodiment).

FIG. 2A is a front view showing a main structure of a gas appliance grill burner, and FIG. 2B is a side view showing a main structure of a gas appliance grill burner (first embodiment).

FIG. 3 is a plan view showing a grill burner main body, a mixing pipe main body, and a connecting pipe support plate (first embodiment).

FIG. 4 (a) is a plan view showing an inlet-side end of a mixing pipe main body and a connecting pipe support plate, and FIG. 4 (b) is a front view showing a fixed damper and an air amount limiting plate (first). Example).

FIG. 5A is a front view showing a damper presser spring,
(B) is a side view showing the damper presser spring (first embodiment).

FIG. 6A is a side view showing a main structure of a gas appliance grill burner, and FIG. 6B is a front view showing a main structure of a gas appliance grill burner (second embodiment).

FIG. 7A is a rear view showing a damper presser spring,
(B) is a side view showing a damper holding spring, and (c) is a front view showing the damper holding spring (second embodiment).

FIG. 8 shows a mounting structure of a conventional grill burner for gas appliances.
FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Grill burner for gas appliances 2 Grill burner main body (burner main body) 3 Mixing pipe main body 3a Suction port 3b Suction port end 4 Communication pipe 5 Communication pipe support plate (Communication pipe support member) 5a Through hole 6 Communication pipe fixing plate ( Connection pipe fixing member 7 Fixed damper (air amount adjusting means, air amount adjusting member) 7a insertion hole 7b air hole 8 Air amount limiting plate (air amount adjusting means, air amount limiting member) 9 Damper holding spring (wirework spring) 10 Fastening member 11 Gas ejection nozzle 14 Flange part 41 First locked part 42 Second locked part 43 First contact part 44 Second contact part 45 First fitting part 46 Second fitting part 48 Engagement part

Claims (1)

(57) [Claims] (A) a mixing pipe main body having an inlet at an end for sucking fuel gas and air, and supplying a mixture of fuel gas and air to a burner main body; A connecting pipe having a nozzle facing the suction port of the mixing pipe main body; (c) a connecting pipe attached to the suction port end of the mixing pipe main body so as to close the suction port; Annular air amount adjusting means which can be inserted into the center insertion hole and adjusts the amount of air sucked into the mixing tube main body; and (d) substantially perpendicular to the axial direction of the communication tube. A gas appliance burner, which is provided from a radial direction, and has a wire spring for pressing the air amount adjusting means against the mixing pipe body by applying a biasing force in an axial direction of the air amount adjusting means.
The air amount adjusting means supplies air to the inside of the mixing tube main body.
An air amount adjusting member having an air hole for inhaling, and
The air hole is partially overlapped with the air amount adjusting member,
Air to restrict the amount of air to the burner body
The mixing pipe has an amount limiting member, and the connecting pipe is connected to an axial direction of the mixing pipe main body.
Superimposed on the upper end surface of the tube support member and the connecting tube support member
The wire-working spring is sandwiched between the communication pipe fixing member and the axial direction of the air amount limiting member.
A biasing force acts in a parallel horizontal direction to move the air amount limiting member.
While pressing against the air amount adjusting member, the connecting pipe is sandwiched.
A first abutting portion that abuts on both sides of the air amount limiting member;
And the connecting pipe support member or the front of the connecting pipe sandwiching the connecting pipe
A second contact portion that contacts both sides of the communication pipe fixing member, wherein the first contact portion and the second contact portion have an axial line;
The first contact portion and the second contact portion.
The contact portion has a substantially U-shape fitted to the outer periphery of the connecting pipe.
Alternatively, an arc-shaped first fitting portion and a second fitting portion are formed.
A burner for gas appliances , characterized in that it is burned.