JPH0215766B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an oil combustor that is used by moving the wick up and down.

Structure of a conventional example and its problems In a conventional oil burner, for example, an oil stove, a burner part 2 is installed on a tank 1, as shown in Figs. A lamp wick 3 which is normally energized in the downward direction is provided so as to be able to move up and down freely, and the lamp wick 3 is moved up and down by a lamp shaft 4 via a rack 5 and a pinion 6.
Then, a ratchet wheel 9 is attached to the friction member 1 on the lamp shaft 4.
Further, a holder 8 is fixed to this lamp shaft 4, and a rotary plate 13 having a pin 14 is attached thereto, and a through hole is provided in the ratchet wheel 9 at a position where it engages with the pin 14. 15 is provided, and a pin 14 is inserted into this through hole 15 to enable vertical movement of the wick 3, that is, to adjust the combustion amount within the range of the through hole 15, and to prevent incomplete combustion due to lowering the wick 3 too much. It is designed to be prevented. Furthermore, a vibration sensing device 16 is attached to the tank 1. This vibration sensing device 16 includes a weight 17 and a fire extinguishing knob 2.
3, a weight 17, a lever 18 operated by a fire extinguisher 23, etc. The end locking portion 21 of the lever 18 engages with the pawl 9' of the ratchet wheel 9 to prevent the ratchet wheel 9 from rotating in the wick downward direction. The maximum rotation range of the ratchet wheel 9 is defined as the range in which the protrusion 9'' provided on the ratchet wheel 9 hits the locking portion 21, that is, the range of one rotation, and the lamp wick 3 does not move up or down within this range. 7 is a knob, which is fixed to the lamp shaft 4.

In the above-mentioned kerosene stove, when the knob 7 is rotated in the direction of raising the wick, the wick 3 is raised through the wick shaft 4, the rack 5, and the pinion 6 while accumulating power. This ratchet wheel 9 is a friction member 10,1
The lamp wick rotates together with the lamp shaft 4 due to the frictional force of 1. Then, when the operating force on the ratchet wheel 9, that is, the operating force on the knob 7 is released, the pawl 9' is locked in the locking part 21,
The lamp wick 3 is held at a predetermined height. Next, to adjust the wick height, turn the knob 7 in the wick lowering direction (opposite to the wick rising direction), but the ratchet wheel 9 is locked in the locking part 21 and cannot be rotated. The wick shaft 4 overcomes the frictional force of the friction members 10 and 11 and can rotate together with these members. Therefore, the wick height can be adjusted within the range of the through hole 15 through which the pin 14 can move.

Next, the wick can be lowered when extinguishing by disengaging the locking part 21 from the pawl 9' by operating the lever 18 by one-touch operation of the extinguishing knob 23.
The stored power of wick 3 is released and it suddenly descends to the lowest position,
It extinguishes fire instantly with very simple and convenient operation. On the other hand, if an abnormality occurs, for example, an earthquake occurs during use, the weight 17 senses this and operates the lever 18. Therefore, similar to the extinguishing operation using the extinguishing knob 23, the lamp wick 3 suddenly descends to the lowest position and extinguishes the fire instantly.

In conventional kerosene heaters such as those mentioned above, in order to safely maintain characteristics such as exhaust gas and temperature, the wick height must be reliably stopped at a predetermined position, and the wick height must not fall below a predetermined level in the same operation (see below). This method is very suitable for countries that have a standard called the one-touch fire extinguishing method (with a mechanical stop type).
Conversely, the wick 3 can be lowered using the wick up/down knob 7 within the range of the through hole 15 provided in the ratchet wheel 9.
Other types of wick descent can only be extinguished by sudden descent using the extinguishing knob 23, so in countries with poor oil conditions, for example, when burning with a heterogeneous mixed fuel such as heavy fuel or light oil, the wick 3 will fall and be extinguished. The disadvantage was that tar, etc., formed on the tip of the wick 3 due to excessive force, and the wick could not be lowered. Moreover, if the wick 3 gets caught in a position where it cannot be extinguished, even if you intend to extinguish it with one touch using the extinguishing knob 23, the combustion will continue, creating a very dangerous situation.
In this case, the extinguishing operation is performed with the extinguishing knob 23 activated, that is, the pawl 9' of the locking part 21.
In the state where the wick is disengaged, it is necessary to turn the wick upper and lower knobs 7 by hand, which is very difficult to understand in case of an emergency when the fire cannot be extinguished.
It also had the disadvantage of being difficult to do.

In such countries, it is natural that the emphasis is on combustion life and safe extinguishing over the convenience of the one-touch extinguishing method, and the configuration is such that the fire can be reliably extinguished by turning the upper and lower knobs 7 of the wick with one's own hands, which generate a large amount of force (hereinafter referred to as this). (called the hand-crank fire extinguishing method) is preferred. However, the one-touch extinguishing system with a mechanical stop type and the hand-crank extinguishing system have very different wick top and bottom configurations, and there is no wick top and bottom configuration that combines the two types, and it is necessary to completely differentiate the two types for mass production. It was the actual situation.

Purpose of the Invention The present invention was made in view of the above-mentioned problems, and is intended to improve mass productivity and reduce costs by making it possible to use both types as needed.

Structure of the Invention In order to achieve the above-mentioned object, the present invention provides a lamp wick vertical axis, a spring means for accumulating a force for lowering a lamp wick in a raised position to an extinguishing position based on a wick upward movement operation of the lamp wick vertical axis, and a rotating body that is rotatably and slidably provided with respect to the vertical axis and is biased in the axial direction by being engaged with the spring means, and has a plurality of engaging portions on the periphery; and an engaging portion of the rotating body; a locking body which is attached to the lamp wick vertical axis, and which locks the rotary body from rotating in the same direction as the rotating direction of the lamp wick vertical axis when the wick is lowered;
and an actuating body that presses the rotating body energized by the spring means, and the rotating body positioned on the rotation trajectory of the actuating body is configured to rotate the lamp wick in the downward direction of the vertical axis at a predetermined position. By providing a stopper to stop the lamp and applying a rotational force stronger than a normal rotational force in the wick lowering direction, the spring means is compressed in the axial direction by the pressure of the operating body, and the rotating body and the stopper are This oil combustor is configured to move in the axial direction to allow rotation of the vertical axis of the lamp wick, and is provided with a mounting portion of a locking member that prevents the rotating body from moving in the axial direction.

DESCRIPTION OF EMBODIMENTS One embodiment will be described below with reference to the drawings. 1st
In FIG. 2, 30 is a tank, 31 is a burner section installed in the tank, and 32 is a lamp wick attached to the burner section 31 via a wick holder 33, which can be freely raised and lowered between it and the light guide tube 31a. . 34 is a lamp wick vertical axis, which has a pinion 34a at the tip.
This pinion 34a is engaged with a rack 35 provided on the wick holder 33 in order to move the wick 32 up and down. 36 is a bearing for supporting the lamp vertical axis fixed to the tank 30, and 37 is the lamp vertical axis packing 3.
It is fixed to the tank 30 with a bearing fitting that supports the parts 8 and the like. 39 is a rotating body made of polyacetal resin or the like, which has a plurality of engaging parts 39a on its periphery and is rotatably fitted into the lamp wick vertical shaft 34, and a locking body 39b having bent parts 39c and 39d; The stop body 39e is provided by integral molding. Reference numeral 40 denotes a fire extinguishing spring for lowering the lamp wick, which is fitted around the rotating body 39, and is pre-wound in advance, and one end is attached to the bearing fitting 3.
7 and the other end is hooked to the rotating body 39. Reference numeral 41 denotes a pin-shaped actuating body embedded in the lamp vertical shaft 34, which is positioned so that it can rotate between the bent portions 39c and 39d of the locking body 39b provided on the rotating body 39, and in the axial direction of the extinguishing spring 40. The rotating body 39 is pressed against the actuating body 41 by the applied force. Therefore, the rotating body 39 and the actuating body 41 are in close contact with each other so as to slide with a constant force. Furthermore, as shown in FIG. 3, the rotating body 39 is energized to rotate in the wick downward direction (in the direction of arrow A in FIGS. 2 and 3) by a stored power extinguishing spring. The bent portion 39c of the locking body 39b engages with the actuating body 41, and the wick vertical shaft 34 is rotated in the wick lowering direction (arrow A direction). The stop body 39e provided on the rotating body 39 is connected to the actuating body 4.
1, and the stopping surface is high so that the actuating body 41 temporarily stops when the lamp wick rotates in the downward direction, and the actuating body 41 presses over the lamp wick when it rotates in the upward direction. It is formed into a tapered shape. On the other hand, a rotating body 3 is attached to the lamp wick vertical axis 34.
A mounting portion (groove) 34b is provided to prevent the rotating body 39 from moving in the axial direction, and by mounting a locking member 48 on the mounting portion 34b, the rotation body 39 can be prevented from moving in the axial direction. The actuating body 4
1 can be prevented from climbing over the stop body 39e. Reference numeral 42 denotes a knob provided at the tip of the wick up/down shaft 34 for raising and lowering the wick.

Reference numeral 43 denotes a vibration sensing device attached to the bearing fitting 37, which is operated by a weight 44 that senses vibrations, and has a lever 45 that is always elastically engaged with the rotating body 39. As shown in FIGS. 1 and 3, a part of the lever 45 is provided with a lock body 46 that engages with the engaging portion 39a of the rotating body 39. Therefore, the rotating body 39 is prevented from rotating in the wick downward direction by the accumulated force of the fire extinguishing spring 40.

In the above configuration, the case of hand-cranked extinguishing method will be explained first.
The locking member 48 is not attached to the attachment portion 34b. In this configuration, when the knob 42 is rotated in the wick upward direction, the wick vertical shaft 34 and the operating body 4
1, the rotating body 39 rotates, and thereby the extinguishing spring 40 stores more power. On the other hand, pinion 34a
As a result, the rack 35 is driven, and the wick holder 33 and the lamp wick 32, which are integrated with the rack 35, are raised. When the lamp wick 32 reaches the uppermost position, the lifting of the lamp wick 32 is stopped, and at this position, the engaging portion 3 of the rotating body 39
9a engages with the lock body 46 of the vibration sensing device,
Prevents the wick from falling. The wick height at this time is the 1st
This is the top point in Figure A. Further, at this time, the relative positions of the actuating body 41 and the rotary body 39 in the circumferential direction are as shown in FIG. .

Next, when lowering the wick to adjust the combustion state, when the knob 42 is rotated in the wick lowering direction (in the direction of arrow A), the actuating body 41 moves to the stop body provided on the rotating body 39, as shown in FIG. 3b. Rotate until it engages with 39e. At this time, the wick height will be at the position shown in Figure 1 B, and the area from A to B will be regulated as the wick adjustment width. This is taken into account in advance to ensure normal combustion height, so the wick 3
This will eliminate the problem of incomplete combustion caused by lowering the value of 2 too much.

Next, in order to further lower the wick 32 in order to extinguish the fire, by applying a rotational force stronger than the normal rotational force with the knob 42, the extinguishing spring 40 is compressed in the axial direction by the pressure of the operating body 41, and the extinguishing spring 40 is compressed in the axial direction. Since the rotating body 39 and the stop body 39e move in the axial direction (at this time, the rotating body engaging portion 39a also moves on the surface of the locking body 46, but does not come off from the locking body 46), the knob 42 The actuating body 41 can now rotate freely, as shown in Figure 3c.
rotates until it engages the bent portion 39d of the locking body 39b. The lamp wick position at this time is the position shown in FIG. 1C. The wick position C is set at a position where the oil combustor can extinguish the fire within a time (approximately 300 seconds), which is generally considered safe if the fire is extinguished within this time. (hereinafter referred to as the first extinguishing position) In normal use, the lamp wick position is
The knob 42 is rotated in the wick upward direction to raise the wick 32 to the uppermost position A, where it is ignited and burned in the combustion tube (not shown, mounted above the burner section 31). In order to obtain the optimum combustion condition, the height of the wick 32 is adjusted within the range of A to B.
If you want to extinguish the fire, turn the knob 42 by hand in the downward direction of the wick with even stronger rotational force.
The wick 32 descends to position C (first extinguishing position),
It is meant to extinguish a fire.

Then, when the knob 42 is rotated in the wick upward direction in order to use it again, the operating body 41 moves to the stop body 39.
The lamp rotates along the taper e, passes the stopper 39e with less resistance than when the lamp wick is descending, and rotates to the highest point of the lamp wick height. (Returns to the state shown in Figure 3a.) On the other hand, if the combustor is subjected to vibrations such as an earthquake or falls and receives an impact (in an abnormal situation), the vibration sensing device 43 is activated and As shown in the figure, the engaging portion 39a of the rotary body 39 and the lock body 46 are disengaged, and due to the urging force of the extinguishing spring 40, the rotary body 39
tries to rotate in the wick lowering direction (arrow A direction), and this movement is transmitted from the operating body 41 to the wick vertical shaft 34, and the spring force instantly lowers the wick. This rotation is more than when the knob 42 is rotated by hand.
The wick position is also D, which descends deeper than the first extinguishing position C. Therefore, the fire is extinguished instantly, and the occurrence of abnormalities such as fire can be prevented. (Hereinafter, this will be referred to as the second extinguishing position.) In the above embodiment, only when the vibration sensing device 43 is activated due to the impact of vibration, the lever 45 is operated by the weight, and the engaging portion 39a of the rotating body 39 is activated. The fire extinguishing button 4 is configured such that the lock body 46 is disengaged, but the fire extinguishing button 4 is manually operated by operating the lever 45.
7 mechanism may be provided, and by operating this mechanism, the rotation body 39 and the lock body 46 may be disengaged. In this case, in the event that abnormal combustion occurs during normal use, by operating the extinguishing button 47, the wick can be lowered rapidly to the second extinguishing position, which has the additional effect of instantly extinguishing the fire. It is something.

Next, we will explain how to respond to the one-touch fire extinguishing method with a mechanical stop method. In this case, the installation part (groove) of the lamp wick vertical shaft 34 in the above-mentioned hand-cranked extinguishing method.
A locking member 48 such as a retaining ring for the shaft is attached to 34b. As a result, as shown in FIG. 3b, the actuating body 4
1 rotates until it engages a stop member 39e provided on the rotating body 39, but the rotating body 39
In some cases, the knob 42 stops rotating at the wick height shown in FIG. Therefore, the range from A to B in Figure 1 is regulated as the combustion adjustment width.

Next, when extinguishing, the lamp wick is lowered by one-touch operation of the extinguishing button 47 at the engagement part 39 of the rotating body 39.
a and the lock body 46 become disengaged, and the extinguishing spring 40
Due to the applied force, the rotating body 39 tries to rotate in the wick downward direction (in the direction of arrow A) as shown in Fig. 3d.
The lamp wick 32 is suddenly lowered to the lowest position shown in Fig. 1D, and the fire is extinguished instantly. Then, when the knob 42 is rotated in the direction of raising the wick in order to use it again, the rotating body 39 is rotated via the operating body 41 and raised to the highest point of the wick height. (Returns to the state shown in Figure 3a.) On the other hand, if the combustor is subjected to vibrations such as an earthquake or falls and receives an impact (in an abnormal situation), the vibration sensing device 43 is activated and As shown in FIG. 3, the engaging portion 39a of the rotating body 39 and the locking body 46 are disengaged, and the fire is extinguished instantly.

Effects of the Invention As is clear from the above description of the embodiments, the oil combustor of the present invention has two completely different types of fire extinguishing methods: a "hand-crank fire extinguishing system" and a "one-touch fire extinguishing system with a mechanical stop system" depending on the needs (requests). The vertical function can be combined by simply installing a locking member that prevents the rotating body from moving in the axial direction, and mass production can be easily performed.

In addition, the simple structure of the rotating body and the actuating body allows the two types to be used together, and compared to the conventional ratchet wheel unit, it is possible to provide a lower-cost upper and lower core structure, which has great effects.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of an oil combustor according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same essential parts, FIGS. 3 a to d are sectional views taken along line XX in FIG. 1, and FIG. A front view showing a conventional oil combustor, Figure 5 is a top view of the same, Figure 6 is
The figure is a front view of the main part, and FIG. 7 is a side sectional view of the main part. 32...Light wick, 34...Light wick vertical axis, 34b...
...Locking part, 39...Rotating body, 39b...Locking body,
39e... Stop body, 40... Fire extinguishing spring, 41...
Operating body, 42...Knob, 46...Lock body, 4
8...Locking member.

Claims (1)

[Claims] 1. A lamp wick vertical axis, a spring means for accumulating a force for lowering the lamp wick in the raised position to the extinguishing position based on the wick upward movement operation of the lamp wick vertical axis, and a spring means capable of rotating and sliding with respect to the lamp wick vertical axis. A rotary body is provided, and is engaged with the spring means to bias it in the axial direction, and has a plurality of engaging portions on its periphery; A locking body that locks the lamp wick from rotating in the same direction as the rotating direction of the vertical axis of the lamp wick during descent, and an operating body that is attached to the vertical axis of the lamp wick and presses a rotating body energized by the spring means. , the rotary body located on the rotation trajectory of the operating body is provided with a stop body that stops the rotation of the lamp wick vertical axis in the downward direction at a predetermined position, and the rotating force in the downward direction of the lamp wick is greater than the normal rotational force in the downward direction of the lamp wick. By applying a strong rotational force, the spring means is compressed in the axial direction by the pressure of the operating body, and the rotating body and the stop body are moved in the axial direction, allowing rotation of the lamp wick up and down axis. An oil combustor comprising: and a mounting portion for a locking member that prevents the rotating body from moving in the axial direction.