JPH11270811A - Gas burner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a fall of a burner head in the middle of conveyance when conveyance is effected in such a state that the burner head is set to a burner body. SOLUTION: In this burner 1, a lock member 4 having a lock part 41 protruded from the outer peripheral surface of an annular cylinder part 12 in a natural state is set in a fitting cylinder part 21. The lock part 41 is brought into contact with a stopper part 31a at the lower end of the fit-in hole being a burner body 3 and the fitting cylinder part 21 is brought into a state not to pull off from the fitting hole 31. Further, when a burner head 2 is dislocated, the lock part 41 is pulled in to the inner side of the fitting cylinder part 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a gas burner comprising a burner head and a burner body.

[0002]

2. Description of the Related Art In a conventional gas burner of this type, a tubular fitting cylinder is projected from the center of the lower surface of a burner head, and the fitting cylinder is inserted into a burner body with the burner head mounted. A fitting hole is formed. A gas appliance equipped with such a gas burner is shipped from a factory with a burner head set in a burner body. Since the burner head is merely mounted on the burner body by its own weight, the burner head may fall off from the burner body during transportation. Therefore, when packing the gas appliance, a holding member made of corrugated cardboard is placed on the burner head set in the burner body, and the holding member is further pressed by a goto or a top plate, whereby the burner head is moved during the transportation. From falling off.

[0003]

In the above-described conventional apparatus, a pressing member that becomes unnecessary dust after unpacking must be used, so that not only the cost of packing is increased but also the amount of dust is increased, which is not environmentally desirable.

[0004] A groove is formed on the outer peripheral surface of the fitting cylinder portion over the entire periphery, and a C-shaped spring that protrudes outward from the outer peripheral surface of the fitting cylinder portion in a natural state is set in the groove. With the spring pushed into the groove, the fitting cylinder is inserted into the fitting hole, and the spring returned to the natural state by positioning the spring below the lower end of the fitting hole is caught by the lower end of the fitting hole and burner is stopped. It is conceivable to prevent the head from coming off. However, if spills etc. hit the gas burner, the burner head may be removed from the burner body and cleaned. In this case, once the burner head is set on the burner body, the top plate is removed and the hand is further removed from the lower side of the burner body. The burner head cannot be removed without turning the spring into the groove.

An object of the present invention is to solve the above problems.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a burner head having a fitting cylindrical portion extending downward from an opening formed at the center, and the fitting cylindrical portion being hermetically inserted. A gas burner having a burner body having a fitting hole formed therein. The retaining portion and the retaining portion for urging the retaining portion toward the outside of the fitting cylinder portion are connected to the retaining portion, and the retaining portion is drawn into the fitting cylinder portion against the urging force of the retaining portion. A lock member comprising a trigger portion is provided, and the burner head is mounted above the lock portion in a state where the burner head is mounted on the burner body at a lower portion of the fitting hole so as to contact the upper surface of the lock portion. That a stopper is formed to prevent the fitting cylinder from being pulled out from the fitting hole. And butterflies.

A burner head having a fitting cylindrical portion extending downward from an opening formed in the center, and a lower cylindrical portion having a smaller outer diameter than the fitting cylindrical portion and extending below the fitting cylindrical portion; In a gas burner comprising a burner body having a fitting hole in which a fitting cylinder portion is hermetically inserted and a flange forming an opening in which a lower cylinder portion is inserted below the fitting hole,
The lower tubular portion of the burner head is provided with a retractable locking portion projecting outward from the inside of the lower tubular portion, and the lower tubular portion holds the locking portion and attaches the locking portion toward the outside of the lower tubular portion. A locking member consisting of a holding portion to be urged and a trigger portion for connecting the locking portion to the inside of the lower cylindrical portion against the urging force of the holding portion and arranging the locking portion is provided on the lower surface of the flange. Forming a stopper portion which is located above the locking portion with the burner head mounted on the burner body, abuts against the upper surface of the locking portion, and prevents the lower tubular portion from being pulled out from the opening formed by the flange. It is characterized by having done.

[0008] Since the trigger portion is located in the fitting tube portion, it can be operated from above the burner head. Therefore, if the finger is inserted into the fitting cylinder and the trigger is operated to pull the locking part inside the fitting cylinder, the locking part is inserted when the fitting cylinder is inserted into the fitting hole. The fitting cylinder can be smoothly inserted into the fitting hole without being caught on the upper end of the fitting hole. After the insertion of the fitting tube into the fitting hole, if the operation on the trigger portion is released, the locking portion projects again outside the fitting tube, and in this state, the fitting tube does not come out of the fitting hole. Absent. When it is desired to remove the burner head, it is sufficient to operate the trigger portion to pull the locking portion inside the fitting tube portion.

There is a type in which a flange is inevitably formed in the fitting hole due to the method of manufacturing the burner body. In this case, a lower tubular portion that can be loosely fitted into the opening formed by the flange may be provided below the fitting tubular portion, and an engaging member may be provided in the lower tubular portion.

When the fitting tube is inserted into the fitting hole or the lower tube is fitted into the flange at least one of the lower surface of the distal end of the locking portion and the upper end of the fitting hole or the upper surface of the flange. By providing a curved portion or an inclined portion that pushes the locking portion into the fitting tube portion or the lower tube portion when inserting the fitting tube portion or the lower tube portion, the trigger portion is inserted when the fitting tube portion or the lower tube portion is inserted. Even if no operation is performed, the locking portion is automatically pushed into the fitting tube portion or the lower tube portion by the pressing force on the burner head or the weight of the burner head.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, reference numeral 1 denotes a gas burner, a burner head 2 formed by forging brass as a material, and a burner body 3 made of sheet metal on which the burner head 2 is mounted. It is composed of Burner head 2
Is placed on the burner body 3, a flame hole 11 is formed between them. On the lower surface of the burner head 2, a fitting cylindrical portion 21 extending downward from an opening 2a formed in the center of the burner head 2 is provided.
Are formed. On the other hand, the burner body 3 is formed with a fitting hole 31 into which the fitting cylindrical portion 21 is fitted. With the fitting cylinder 21 inserted into the fitting hole 31 and the burner head 2 set in the burner body 3, the fitting cylinder is positioned below the stopper 31 a which is the lower end of the fitting hole 31. A groove 22 is engraved over the entire circumference of the inner surface of the portion 21,
A through-window 23 is formed in a part of the groove 22 so as to penetrate the fitting cylinder 21. The locking member 4 is provided in the groove 22.

The locking member 4 is formed by bending a wire such as a piano wire into the shape shown in FIG. The locking member 4 is formed in a spiral shape that makes substantially one rotation,
A locking portion 41 is formed so as to protrude outward. With the locking portion 41 interposed, a holding portion 42 that is largely curved to one side and expands outward is formed. On the other hand, the center C of the fitting cylinder 21 is sandwiched in a state in which the locking member 4 is set in the fitting cylinder 21 near the tip of a small curved portion located inside the holding portion 42. The part located on the opposite side of the locking part 41 was used as a trigger part 43. The locking member 4 is connected to the fitting cylindrical portion 21.
As shown in FIG. 3, the leading end of the locking portion 41 protrudes from the through-window 23 formed in a part of the groove 22 to the outside of the fitting tube portion 21 as shown in FIG. The radius of curvature of the holding portion 42 is formed so as to be slightly larger than the radius of curvature of the groove 22. Therefore, when the locking member 4 is set in the groove 22,
The holding portion 42 is pressed against the inner wall of the
The locking member 4 is held in the groove 22 and does not fall off from the inside of the fitting tubular portion 21. On the other hand, since the radius of curvature of the arc-shaped portion where the trigger portion 43 is formed at the tip portion is smaller than that of the holding portion 42, the groove 2 is formed.
2 rises from the inner wall, and the trigger portion 43 is
Is held at a position inwardly away from the inner peripheral surface of the fitting tubular portion 21 in the internal space 21a of the fitting cylinder 21. In the state shown in FIG. 1, the locking portion 41 protrudes outward from the outer peripheral surface of the fitting tube portion 21, so that even if the burner head 2 is pulled upward, the locking portion 41 abuts on the stopper portion 31 a and is fitted. Tube section 2
1 cannot be pulled out from the fitting hole 31. here,
When a finger is inserted from above the fitting tube portion 21 and the trigger portion 43 is put close to the inner peripheral surface of the fitting tube portion 21 by putting a finger on the trigger portion 43, the locking portion 41 It is drawn inside the fitting tube part 21 while opposing. Then, the fitting cylinder 2
When the burner head 2 is pulled up, the fitting cylindrical portion 21 can be pulled out from the fitting hole 31 by eliminating the one protruding outward from the outer peripheral surface of the fitting 1.

In this embodiment, the fitting holes 31 are used.
Is provided with a curved portion 31b in which the entire periphery of the upper end is curved in a downward direction toward the inside. Therefore, when inserting the fitting cylinder portion 21 into the fitting hole 31, a finger is put on the trigger portion 43 and the locking portion 41 is inserted.
Can be inserted into the fitting tube portion 2 without being pulled into the fitting tube portion 21.
1 is pushed by the curved portion 31b in conjunction with the operation of inserting the lock member 1 into the fitting hole 31, and the locking portion 41 is
Pushed into the inside of 1. The urging force of the holding portion 42 may be sufficient as long as the holding portion 42 does not come off the groove 22.
By appropriately selecting the wire diameter of the locking member 4 and making the diameter as small as possible, the locking portion 41 can be pushed by the weight of the burner head 2 alone.

In the above-described embodiment, the locking member 4 is formed only of a wire. However, as shown in FIG.
May be attached to the wire. In the present embodiment, the inclined portion 44 is provided on the lower surface of the distal end of the locking portion 44 made of a block-shaped metal piece.
a, and a groove 44b is engraved at the rear end, and the wire forming the holding portion 42 and the trigger 43 is inserted into the groove 44b and swaged to integrate the wire and the locking portion 44 together. Has been concluded. As in the present embodiment, the locking portion 44
In the case where the inclined portion 44a is formed on the lower surface of the front end of the fitting hole 31, it is not always necessary to provide the curved portion 31b at the upper end of the fitting hole 31.

FIG. 5 shows another embodiment. In the present embodiment, a flange 62 is formed below a fitting hole 61 formed in the burner body 6 on which the burner head 5 is mounted. The flange 62 is provided on the upper plate 6 forming the burner body 6.
This is formed as a result of caulking the lower plate 6a and the lower plate 6b and binding them together. A circular opening is formed at the inner edge of the flange 62. On the other hand, burner head 5
The fitting tubular portion 51 extends downward from the opening 5a formed at the center of the fitting. Then, a lower tubular portion 52 is provided to extend further below the lower end of the fitting tubular portion 51. The lower cylindrical portion 52 is provided with a flange 6
The outer diameter of the fitting tube 51 is smaller than the outer diameter of the fitting cylindrical portion 51. Then, as shown in FIG. 5, in a state where the burner head 5 is mounted on the burner body 6, that is, in a state where the lower tubular portion 52 is inserted through the opening formed by the flange 62, the burner head 5 is located below the tip of the flange 62. As described above, the groove 22 is formed on the entire inner peripheral surface of the lower cylindrical portion 52. Further, a window hole 23 penetrating through the inside and outside of the lower cylindrical portion 52 is formed in a part of the groove 22 as in the above embodiment. In FIG.
And the locking member 4 shown in FIG. 4 is set. As a result, the trigger portion 43 of the locking member 4 is held at a position inside the inner space 52a of the lower tubular portion 52 and away from the inner peripheral surface of the lower tubular portion 52. By the way, the flange 62 is inclined downward toward the inside, and the upper surface of the flange 62 becomes the inclined portion 62b. When the lower cylindrical portion 52 is inserted into the opening formed by the flange 62, the engaging portion 41 of the engaging member 4 is engaged. Is pushed by the inclined portion 62b into the lower tubular portion 52. Then, when the locking member 4 passes below the distal end of the flange 62, the locking portion 41 is moved downward by the elastic force of the holding portion 42.
2 protrudes from the outer periphery. Even if the burner head 5 is lifted in this state, the locking portion 41 comes into contact with the stopper portion 62a at the lower end of the flange 62, and the burner head 5
Cannot be lifted any more.

When the boiling reaches the inclined portion 62b, which is the upper surface of the flange, the fitting cylinder portion 51 and the fitting hole 6 are formed.
In some cases, spills may penetrate into the gap between the burner head 1 and the burner head 5 due to capillary action, and the burner head 5 may not be easily removed from the burner body 6. In the above embodiment, the burner head 5
Is set in the burner body 6, the lower end of the lower cylindrical portion 52 is positioned below the flange 62. Therefore, even if the boiling spills into the opening 5a during cooking, the boiling spill may occur.
It does not reach the inclined portion 62b which is the upper surface of the second.

In each of the above embodiments, the case where the burner body is formed by sheet metal has been described. However, the present invention can be applied to a case where the burner body is formed by casting. In this case, the casting surface is shaved to form the fitting hole, and at the same time, the stopper may be formed below the fitting hole by cutting.

[0018]

As is apparent from the above description, according to the present invention, there is no possibility that the burner head will fall off the burner body during transportation without using the pressing member made of corrugated paper, and the cleaning is performed. When it is desired to remove the burner head from the burner body, the burner head can be removed by a simple operation.

[Brief description of the drawings]

FIG. 1A is a cross-sectional view showing a configuration of an embodiment of the present invention, and FIG.

FIG. 2 is a diagram showing a shape of a locking member.

FIG. 3 is a sectional view showing a state in which a locking member is set.

FIG. 4 is a view showing another embodiment of a locking member.

FIG. 5A is a cross-sectional view showing a configuration of another embodiment, and FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gas burner 2 Burner head 3 Burner body 4 Locking member 31a Stopper part 31b Curved part 41 Locking part 42 Holding part 43 Trigger part

Claims (4)

[Claims] 1. A gas burner comprising: a burner head having a fitting cylinder portion extending downward from an opening formed in the center; and a burner body having a fitting hole into which the fitting cylinder portion is hermetically inserted. The fitting tube portion of the burner head has a retractable locking portion that protrudes outward from the inside of the fitting tube portion, and the locking portion is held by the fitting tube portion and the locking portion is outside the fitting tube portion. And a trigger member that is connected to the holding portion that urges toward the holding member and a trigger portion that is connected to the locking portion and pulls the locking portion inside the fitting cylindrical portion against the biasing force of the holding portion. The lower part of the fitting hole is located above the locking part with the burner head mounted on the burner body and abuts on the upper surface of the locking part to prevent the fitting cylinder from being pulled out from the fitting hole. A gas burner characterized by forming a stopper portion. 2. The locking portion is inserted into the fitting cylinder when inserting the fitting cylinder into the fitting hole on at least one of the lower surface of the distal end portion of the locking portion and the upper end of the fitting hole. 2. The gas burner according to claim 1, wherein a curved portion or an inclined portion for pushing is provided. 3. A burner head having a fitting cylindrical portion extending downward from an opening portion formed in the center, and a lower cylindrical portion having a smaller outer diameter than the fitting cylindrical portion and extending below the fitting cylindrical portion,
In a gas burner comprising a fitting hole into which the fitting cylindrical portion is hermetically inserted and a flange below the fitting hole, the flange forming an opening into which the lower cylindrical portion is inserted, a lower portion of the burner head A retractable locking portion that protrudes outward from the inside of the lower cylindrical portion to the cylindrical portion; and a holding portion that holds the locking portion to the lower cylindrical portion and urges the locking portion toward the outside of the lower cylindrical portion. And a trigger member for connecting the locking portion to the inside of the lower cylindrical portion against the urging force of the holding portion. A stopper portion which is located above the locking portion when attached to the burner body, contacts the upper surface of the locking portion, and prevents the lower cylindrical portion from being pulled out from the opening formed by the flange. And gas burner. 4. A curve which pushes the locking portion into the lower cylindrical portion when inserting the lower cylindrical portion into the opening formed by the flange on at least one of the lower surface of the distal end portion of the locking portion and the upper surface of the flange. The gas burner according to claim 3, wherein a portion or an inclined portion is provided.