JP4670414B2 - Oil combustor core lifting device - Google Patents

Description

  The present invention relates to a structure of a core lifting device of a core vertical oil combustor.

  The core vertical oil combustor consists of a core outer cylinder attached to the upper surface of the oil tank and a core inner cylinder standing up from the bottom surface of the oil tank. It has a freely held core and a core vertical axis that performs the vertical movement of the core. The core vertical axis is rotated in the upward direction to move the core upward, and the tip of the core protrudes from the top of the core housing cylinder When the lead is ignited by an ignition device such as an ignition heater, the fuel sucked up by the lower end of the lead starts to burn at the upper end of the lead. Further, the combustion amount can be adjusted by rotating the vertical axis of the core during combustion to change the height of the core, and the fire is extinguished when the core is further lowered to the fire extinguishing position.

  The core lifting device provided in such an oil combustor generally has a configuration in which the core moves up and down by meshing with a rack gear attached to the core holder and a pinion gear provided at the inner end of the core vertical shaft. However, this core lifting device has a problem in terms of productivity and cost because the rotation amount of the core vertical axis is large and the vertical operation of the core is troublesome, and it takes time to process the rack gear and the pinion gear. .

For this reason, the applicant replaces the configuration with the conventional rack gear and pinion gear, attaches a drive plate to the inner end of the core vertical axis, forms a drive pin from the movable end of the drive plate toward the core, A core raising / lowering device in which a connecting portion that fits with a driving pin is provided on the side surface of a core holder attached to the outer periphery of the core, and the core holder is driven by the driving pin of the driving plate that is movable when the core vertical axis is rotated to move the core up and down. (See Patent Document 1).
Japanese Patent Application No. 2003-337470

  According to the proposal of the above-mentioned patent document 1, since the amount of rotation of the core vertical axis can be reduced as compared with the conventional rack gear and pinion gear core vertical apparatus, the operability can be improved and the gear is not required and the structure is simple. Therefore, it was possible to contribute to shortening the machining process and cost.

  However, the configuration of Patent Document 1 has a structure in which the drive pin that moves the core up and down supports the entire core only on one side of the core, and thus it has been found that the inclination of the core is more likely to occur than in the conventional structure. If the core is tilted, it will move up and down with the core in contact with the inner wall of the core housing cylinder, and while the core is new and soft, the core will be deformed and can be operated smoothly without problems. If the core becomes harder or the thickness of the core increases over time, the contact resistance between the core and the inner wall of the core housing cylinder will increase, causing an obstacle when the core moves up and down, making it difficult to perform the core up and down operation in a short period of time. There were drawbacks.

  In addition, if the lead is tilted at the lead-up position and the lead height changes before and after the lead, the distance between the flame at the tip of the lead and the lead-receiving tube is reduced on the lower lead side. If the temperature rises and the temperature of the lead tube rises, the vaporization of kerosene from the lead will be promoted, the balance of combustion will be lost, and the odor will become stronger. There is.

  In addition, by driving the core with a drive pin that is separated from the core vertical axis, it is possible to perform the core vertical operation with a lighter operation compared to the structure that is driven by the engagement of the rack gear and the pinion gear. When the force is applied to the core, the vertical axis of the core is easy to rotate with a weak force. The height may be lowered, and the expected combustion performance may not be obtained.

  Also, in the vicinity of the center raising position, the amount of movement of the core is small with respect to the rotation of the core vertical axis, so that it is easy to adjust the combustion amount to rotate from the maximum core height to the core lowering direction. The adjustment of the combustion amount is performed while checking the adjustment range and combustion state of the combustion amount displayed on the equipment, and the core may be lowered too much only by visual confirmation. It is desirable to inform the user of the core height in another way.

The present invention solves the above-described problem, and includes a core up / down shaft 1 for performing a core up / down operation, a core inner cylinder 3 erected from a bottom plate of an oil tank 2, and a core outer cylinder attached to an upper surface plate of the oil tank 2. 4 and a core 6 attached in a space between the core housing cylinder 5 constituted by the core inner cylinder 3 and the core outer cylinder 4 so as to be movable up and down,
A drive plate 7 attached to the inner end of the core vertical shaft 1 and movable about the core vertical shaft 1; a drive pin 7a formed from the movable end of the drive plate 7 toward the core 6; The side of the lead holder 8 attached to the outside of the lead 6 is provided with a connecting portion 9 and a long hole 9a along the circumferential direction of the lead 6 formed in the connecting portion 9 to drive the drive plate 7. In the oil combustor in which the pin 7a is fitted into the long hole 9a of the connecting portion 9 and the lead holder 8 is driven by the drive pin 7a when the lead vertical shaft 1 is rotated to move the lead 6 up and down. A drive restricting portion 10 is arranged between the connecting portion 9 and the drive restricting portion 10 abuts against the side surface of the connecting portion 9 to press the lead holder 8 in the lead 6 direction.

  The drive restricting portion 10 is disposed on the drive plate 7 between the core vertical shaft 1 and the drive pin 7a, and abuts the lower portion of the connecting portion 9 when the core vertical shaft 1 is rotated to the maximum center raising position. By contacting the upper part of the connecting portion 9 when the vertical shaft 1 is rotated to the core lowering position, the core 6 is not inclined, and the core vertical operation can be performed smoothly.

  Further, the drive control unit 10 is provided with a projection 10a, and the projection 10a of the drive control unit 10 and the inner edge of the long hole 9a of the connecting unit 9 are brought into resistance when the core vertical shaft 1 is rotated. Thus, when the core is moved up and down, resistance is transmitted to the user so that the optimum use range can be notified.

  In the present invention, a drive restricting portion 10 is provided between a drive plate 7 attached to the inner end of the core vertical shaft 1 and a connecting portion 9 attached to the side surface of the core holder 8. Since the inclination of the core 6 can be suppressed by abutting against the side surface of the connecting portion 9 attached to the side surface and pressing the core holder 8 toward the core 6 side, the gap between the core 6 and the core housing cylinder 5 is made uniform. Even when the core 6 becomes harder or the thickness of the core 6 increases with use, the core 6 does not immediately contact the core housing cylinder 5, so that the core can be operated up and down in a short period of time. There is no such thing as disappearing.

  Further, since the inclination of the lead 6 is eliminated, the lead height at the lead raising position becomes uniform, so that the lead containing cylinder 5 does not become abnormally high temperature during combustion, and the balance of combustion is lost or the fire extinguishing time is reduced. Is no longer long, and stable combustion and extinguishing can be realized.

  When the lead 6 is set in the lead-up position, the force by which the drive restricting portion 10 pushes the lead holder 8 toward the lead 6 becomes the resistance of the lead 6 that tries to move in the lead-down direction. The vertical shaft 1 is not rotated in the core lowering direction, and an appropriate core height can be maintained at the center raising position, so that good combustion performance can be obtained.

  Further, the drive restricting portion 10 is formed with a protrusion 10a, and when the core vertical shaft 1 is rotated, the protrusion 10a and the inner edge of the elongated hole 9a come into contact with each other to provide resistance to the user. By feeling this resistance, the adjustment range of the combustion amount can be known, and the core 6 can be prevented from being lowered too much.

  The present invention will be described with reference to the embodiments shown in the drawings. Reference numeral 2 denotes an oil tank of an oil combustor, 3 denotes a core inner cylinder erected from the bottom plate of the oil tank 2, 4 denotes a core outer cylinder attached to the upper surface of the oil tank 2, Reference numeral 5 denotes a core housing cylinder constituted by the core inner cylinder 3 and the core outer cylinder 4, and 6 is a core attached to the gap between the core inner cylinder 3 and the core outer cylinder 4 so as to be movable up and down. The fuel in the oil tank 2 is Sucked at the lower end of the lead 6 and supplied to the upper end of the lead 6.

  1 is a core vertical axis for performing the core vertical operation, 1a is an operation knob for the core vertical shaft 1 attached to the outer end of the core vertical shaft 1, and 11 is a combustion section disposed above the core inner cylinder 3 and the core outer cylinder 4. When the core 6 is moved upward by rotating the vertical axis 1 of the core by the operation knob 1a and the core 6 is ignited by an ignition device such as an ignition heater (not shown), the core 6 is sucked up by the lower end of the core 6. The fuel in the oil tank 2 starts burning at the upper end of the wick 6, and the generated combustion flame and combustion gas rise and complete combustion in the combustion section 11.

  Reference numeral 12 denotes a rotary plate formed by a gear that is loosely fitted to the core vertical shaft 1 and rotates around the core vertical shaft 1, 1 b is a locking piece provided on the core vertical shaft 1, and 12 a is provided on the rotary plate 12. Since the locking piece 1b pushes the locking portion 12a of the rotating plate 12 when the core vertical shaft 1 is rotated in the center raising direction, the core vertical shaft 1 and the rotating plate 12 are brought together. Rotate. 13 is a return spring attached between the rotating plate 12 and the oil tank 2, 14 is a stopper that engages with the rotating plate 12 that rotates in the centering direction, and 12b is a stopper 14 provided on the rotating plate 12. The rotating plate 12 winds up the return spring 13 during the centering operation, and when the engaging tooth 12b of the rotating plate 12 engages the stopper 14, the rotating plate 12 is lowered by the return spring 13 The rotational force in the direction is maintained.

  Reference numeral 15 denotes a vibration absorber connected to the stopper 14. When the vibration detector 15 detects vibration, the stopper 14 is moved to disengage from the engagement teeth 12 b of the rotating plate 12, and the stopper 14 is disengaged. The moving plate 12 is rotated in the core lowering direction by the return spring 13, and the locking portion 12a pushes the locking piece 1b, so that the core vertical shaft 1 is driven in the core lowering direction together with the rotating plate 12 to extinguish the fire.

  Further, the core vertical shaft 1 is provided so that the locking piece 1b can be rotated independently from the locking portion 12a while the rotary plate 12 and the stopper 14 are engaged. By rotating the, the normal fire extinguishing operation and the adjustment of the combustion amount can be performed.

  Reference numeral 7 denotes a drive plate that rotates about the core vertical axis 1 provided at the inner end of the core vertical axis 1, 7 a denotes a drive pin that extends from the movable end of the drive plate 7 toward the core 6, and 8 denotes the core 6. A core holder attached to the outer periphery of the core holder 9, a connecting portion attached to the side surface of the core holder 8, and 9 a a horizontally long hole along the circumferential direction of the core 6 formed in the connecting portion 9. The pin 7a and the elongated hole 9a of the connecting portion 9 are fitted, and when the core vertical axis 1 is rotated, the drive plate 7 is driven and the drive pin 7a is rotated about the core vertical axis 1 to drive the drive pin. 7 a applies a force to the connecting portion 9, and the core 6 integrated with the core holder 8 moves up and down along the core inner cylinder 3.

  The core lifting device having the above configuration has an advantage that the core lifting operation and the amount of combustion can be easily adjusted as compared with the conventional structure. However, this core lifting device has a structure in which the drive pin 7a supports only one side of the core 6 and is driven. Since there is no support on the side opposite to the pin 7a, the lead holder 8 and the lead 6 are easily inclined. When the core 6 is tilted, the vicinity of the upper end of the core 6 comes into contact with the side wall of the core housing cylinder 5, so that when the core 6 is hardened due to the course of use and the core 6 becomes hard or the thickness of the core 6 increases, the core 6 As a result, the contact resistance between the lead and the core housing cylinder 5 is increased, which hinders the core up / down operation, and the core up / down operation cannot be performed in a short period of time after starting to use the product.

  Further, when the core is set in the center raising position, the core height on the drive pin 7a side is normal, but the core height on the opposite side to the drive pin 7a is low, and the side where the core height is low is the tip of the core 6. Since the flame approaches the lead accommodating cylinder 5, the temperature of the lead accommodating cylinder 5 may be increased, the vaporization of kerosene is promoted and the combustion becomes unstable, or the lead accommodating cylinder 5 is at a high temperature during fire extinguishing. Fire may not be extinguished and fire extinguishing time may be longer.

The present invention solves the above-mentioned problems. Reference numeral 10 denotes a drive restricting portion attached to the drive plate 7 located between the drive plate 7 and the connecting portion 9 of the lead holder 8, and the drive restricting portion 10 is a lead holder. The lead holder 8 is pressed against the side of the lead 6 while being in contact with the side surface of the connecting portion 9 of the lead 8.

  In the embodiment shown in FIG. 1, the drive restricting portion 10 is configured by a plate material that contacts the connecting portion 9 and a spring material disposed between the plate material and the drive plate 7, and the plate material that contacts the connecting portion 9. Is urged by the spring material to press the lead holder 8 toward the lead 6 side.

  With this configuration, the drive regulating unit 10 can prevent the inclination of the core 6 by the force pressing the core 6 and the core holder 8 against the core inner cylinder 3, so that the core 6 contacts the inner wall of the core housing cylinder 5. The core up and down operation can be performed smoothly, and even if tar adheres to the core 6 over the course of use, the gap between the core 6 and the core housing cylinder 5 can be maintained, and the core up and down can be done in a short period of time after using the product. It will never be impossible.

In addition, since the height of the upper end of the lead 6 becomes uniform when set to the lead-up position, an appropriate distance can be maintained between the combustion point of the lead 6 and the lead housing cylinder 5, and the temperature of the lead housing cylinder 5 during combustion is maintained. Since the temperature did not become high, stable combustion could be realized without losing the balance of combustion, and stable fire extinguishing could be realized without extinguishing the fire extinguishing time during fire extinguishing.

  Further, since the drive pin 7a for driving the core 6 is located at the movable end of the drive plate 7 away from the core vertical axis 1, the core vertical position is higher than that for driving the core 6 directly by the conventional core vertical axis 1. The operation can be performed with a light force, but conversely, when a force is applied to the drive pin 7a, the core vertical shaft 1 is easily rotated by a weak force, and the weight of the core 6 that sucks up the fuel. As a result, the core up / down shaft 1 is rotated in the direction of lowering the core and the core height is lowered so that the desired amount of combustion cannot be set. However, in this invention, the drive restricting unit 10 moves the core holder 8 toward the core 6 side. Since the core 6 is to be lowered by the pressing force to prevent the core 6 from being lowered, the core height is not reduced arbitrarily, and combustion can be performed with a desired amount of combustion.

  By the way, when the core up-and-down shaft 1 is rotated in the center-up direction, the core 6 starts to rise first on the connecting portion 9 side, and the lower portion of the core holder 8 is tilted forward, while the core up-and-down shaft 1 is moved in the center-down direction. When rotating, the lead 6 starts to descend first on the connecting part 9 side, and the upper part of the lead holder 8 tends to tilt forward. In the embodiment of the present invention shown in FIG. 2, the drive restricting portion 10 is disposed between the core vertical shaft 1 and the drive pin 7a, and the drive restricting portion 10 is connected to the drive plate 7 when the core vertical shaft 1 is rotated. It moves together and is positioned above the long hole 9a of the connecting part 9 at the core lowered position and abuts on the upper part of the connecting part 9, and at the center raised position it is positioned below the long hole 9a of the connecting part 9 and connected. Since it is in contact with the lower portion of the portion 9 and the drive restricting portion 10 presses the side that tends to tilt, the tilt of the core 6 during the core up / down operation can be reliably suppressed.

  Further, in the above configuration, when adjusting the combustion amount, the core vertical shaft 1 is rotated while checking the adjustment range of the combustion amount displayed on the device and the combustion state of the combustion unit 11, In the method of visually adjusting the combustion amount, the lead 6 is lowered too much from the adjustment range of the combustion amount, which may cause abnormal combustion.

  In FIG. 3 showing the embodiment, reference numeral 10a denotes a protrusion formed on the drive restricting portion 10, and the drive restricting portion 10 is located below the long hole 9a of the connecting portion 9 at the center raising position. The protrusion 10a is provided so as to be positioned below the inner edge on the upper side of the long hole 9a in the long hole 9a or below the long hole 9a.

  When the core vertical shaft 1 is rotated in the core lowering direction in order to adjust the amount of combustion, the core 6 is lowered with the drive of the drive plate 7, and when the protrusion 10a is positioned below the long hole 9a, the drive is restricted. The protrusion 10a moves into the long hole 9a while the portion 10 spreads toward the core holder 8 side. When the core is further lowered in the core lowering direction to reach the core height at the minimum combustion position, as shown in FIG. 4, the protrusion 10a hits the inner edge on the upper side of the long hole 9a, and the core vertical shaft 1 is rotated. It is a temporary stop, and tells the user the resistance at this time.

  Thus, the user who is operating the operation knob 1a of the core vertical shaft 1 can be provided by giving the user resistance when the protrusion 10a of the drive restricting portion 10 hits the inner edge on the upper side of the long hole 9a. Since it is possible to know that this position is the minimum combustion position by the touch transmitted to the hand, the core 6 is not lowered too much out of the combustion range, and the use can always be performed in the correct combustion range.

  When the core vertical shaft 1 is further rotated in the core lowering direction from the position where the rotation of the core vertical shaft 1 once stopped at the time of fire extinguishing, the drive restricting portion 10 having elasticity is pushed back toward the drive plate 7. The protrusion 10a is disengaged above the long hole 9a, the core vertical shaft 1 is rotated again in the core lowering direction, and the core 6 can be lowered to the normal fire extinguishing position to extinguish the fire. As shown in FIG. 5, it can be positioned above the long hole 9 a of the connecting portion 9.

  The drive restricting portion 10 may be formed by bending a plate-shaped spring material into a V shape as shown in FIG. 6. In this case, the end of the drive restricting portion 10 is not moved when the core is moved up and down. In order not to be caught on the inner edge of the long hole 9a, the portion that contacts the connecting portion 9 is bent or bent into a square shape, and the curved or square portion functions as the protrusion 10a. You may comprise as follows.

It is sectional drawing of the oil combustor provided with the core raising / lowering apparatus of the Example of this invention. It is principal part sectional drawing which shows the state at the time of the core lowering of the core raising / lowering apparatus of the Example of this invention. It is a principal part front view explaining the state of the combustion position of the core raising / lowering apparatus of the Example of this invention. It is a principal part front view explaining the state of the minimum combustion position of the core lifting apparatus shown in FIG. It is a principal part front view explaining the state of the fire extinguishing position of the core lifting apparatus shown in FIG. It is a perspective view of the principal part which shows the state which attached the component of the other Example of this invention.

Explanation of symbols

1 core vertical axis 1a operation knob 2 oil tank 3 core inner cylinder 4 core outer cylinder 5 core housing cylinder 6 core 7 drive plate 7a drive pin 8 core holder 9 connecting portion 9a long hole 10 drive restricting portion 10a protrusion

Claims (3)

A core vertical shaft 1 for performing a core vertical operation, a core inner cylinder 3 standing from the bottom plate of the oil tank 2, a core outer cylinder 4 attached to the upper surface plate of the oil tank 2,
In addition to providing a core 6 attached in a space between the core housing cylinder 5 formed by the core inner cylinder 3 and the core outer cylinder 4 so as to be movable up and down,
A drive plate 7 attached to the inner end of the core vertical shaft 1 and movable about the core vertical shaft 1; and a drive pin 7a formed from the movable end of the drive plate 7 toward the core 6;
And on the side surface of the core holder 8 attached to the outside of the core 6, there is a connecting portion 9,
A long hole 9a along the circumferential direction of the core 6 formed in the connecting portion 9;
The drive pin 7a of the drive plate 7 is fitted into the long hole 9a of the connecting portion 9,
In the oil combustor in which the lead holder 8 is driven by the drive pin 7a when the lead vertical shaft 1 is rotated to move the lead 6 up and down,
A drive restricting portion 10 is disposed between the drive plate 7 and the connecting portion 9,
The drive regulating unit 10 abuts against the side surface of the connecting unit 9 and presses the core holder 8 in the direction of the core 6. The drive restricting portion 10 is disposed on the drive plate 7 between the core vertical shaft 1 and the drive pin 7a, and contacts the lower portion of the connecting portion 9 when the core vertical shaft 1 is rotated to the maximum center raising position.
2. The core lifting / lowering device for an oil combustor according to claim 1, wherein the core lifting / lowering shaft is brought into contact with an upper portion of the connecting portion when the shaft lifting / lowering shaft is rotated to a core lowering position. The drive control unit 10 is provided with a projection 10a, and the projection 10a of the drive control unit 10 and the inner edge of the long hole 9a of the connecting unit 9 are brought into contact with each other when the core vertical shaft 1 is rotated. The core raising / lowering device for an oil combustor according to claim 1.

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