JP4333326B2 - Oil combustor core lifting device - Google Patents

Description

  The present invention relates to the structure of a core lifting device for an oil combustor.

  In the dial-type core lifting and lowering device, when the core vertical axis is rotated in the upward direction, the rotating plate is driven via the locking portion, and the rotating plate winds up the return spring and engages the stopper at the center raising position. To accumulate power in the return spring. Then, when the engagement between the rotating plate and the stopper is released, the rotating plate is driven in the core lowering direction by the return spring, and the core vertical axis is rotated to the core lowering position via the locking portion.

  In addition, the core vertical axis is provided so as to be able to rotate independently from the locking portion in a state where the rotation plate and the stopper are engaged, and by manually rotating the core vertical axis, fire extinguishing at normal time Operation and adjustment of the combustion amount can be performed, and as this configuration, a locking part constituted by a locking shaft attached to the core vertical axis and a protrusion attached to the rotating plate, (Refer to Patent Document 1), there is a structure in which a core height regulating mechanism is configured by an arc-shaped long hole formed in a rotating plate and an operation pin that slides in a long hole attached to a vertical axis of the core (Patent Document). 2).

And by changing the mounting position of the protrusions attached to the rotating plate and the length of the long hole formed in the rotating plate to change the rotation range of the core vertical axis, the core lowering position and the amount of combustion for normal fire extinguishing The adjustment range can be set.
Japanese Utility Model Publication 3-45027 JP 61-143622 A

  As shown in Patent Document 1, the one that forms the locking portion with the locking shaft attached to the vertical axis of the core and the protrusion attached to the rotating plate requires a part for fixing the protruding portion to the rotating plate. The number of parts will increase. In this structure, when setting the core-extinguishing position for normal fire extinguishing and the adjustment range of the combustion amount, it is necessary to provide a plurality of protrusions on the rotating plate, and since many components are attached to the rotating plate, Since the structure becomes complicated and the assembly process increases, there is a disadvantage that the material cost and processing cost increase.

  On the other hand, in the structure in which a long hole is provided in the rotating plate as in Patent Document 2, parts to be attached to the rotating plate are not required, and the number of parts and the assembly process are reduced, so that it can be manufactured at a relatively low cost. However, the conventional dial-type core lifting device generally has a structure in which the core is moved up and down by a pinion gear meshing with the rack gear of the core vertical shaft, and the core vertical shaft needs to be operated almost once, so the patent When setting the core lowering position for normal fire extinguishing with the structure of Reference 2, the long hole must be lengthened, and there is a risk of reducing the strength of the rotating plate. It was unsuitable for setting the core position for fire fighting.

  Also, when replacing the lead, the pinion gear and the rack gear are disengaged and the lead is pulled out upward. There was a drawback that it took time.

  Furthermore, recently, models with different maximum heat generation tend to increase in accordance with user demands, and the core height at the maximum combustion position differs depending on the model, so it is also necessary to change the pivot range of the core vertical axis. When changing the pivot range of the core vertical axis, it is possible to change the mounting position of the locking pin of the pivot plate or change the length of the long hole. Has to be prepared, which is disadvantageous in terms of productivity and increases costs.

  The present invention solves the above-described problems, and is provided with a core vertical shaft 1 for performing a core vertical operation, and a core vertical shaft 1 that is pivotably mounted around the core vertical shaft 1 and when the core vertical shaft 1 is rotated in the center-up direction. A rotation plate 3 driven by the locking portion 2, a return spring 4 attached to the rotation plate 3 that drives the core vertical shaft 1 in the core lowering direction via the locking portion 2, and rotation by the return spring 4 In the oil combustor provided with a stopper 5 for holding the rotational force of the plate 3, the rotating plate 3 is formed with an arc-shaped locking hole 3 a and the core vertical shaft 1 is locked with the rotating plate 3. A connecting member 6 provided with a locking piece 6a fitted to the hole 3a is attached, and the locking member 2 is constituted by the connecting member 6 and the locking hole 3a of the rotating plate 3, and the core vertical shaft 1 is rotated. The plate 3 and the stopper 5 are rotatably provided in the engaged state, and the core vertical shaft 1 is formed by the locking hole 3a of the rotating plate 3 and the locking piece 6a of the connecting member 6. A drive plate 7 that restricts the rotation range, is attached to the inner end of the core vertical shaft 1 and is movable around the core vertical shaft 1, and a drive formed from the movable end of the drive plate 7 toward the core 8. A pin 7a and an engaging portion 10 which is attached to the lead holder 9 and engages with the drive pin 7a of the drive plate 7 are provided, and the lead 8 is moved by the drive pin 7a of the drive plate 7 which is movable when the lead vertical shaft 1 is rotated. It is characterized by moving up and down.

  Further, the connecting member 6 is fixed to the core vertical shaft 1 by the fixing means 11, and the locking plate 6 can be locked by changing the width and shape of the locking piece 6 a of the connecting member 6 attached to the core vertical shaft 1. Even if the length of the hole 3a and the engagement position between the rotation plate 3 and the stopper 5 are the same, the rotation range and the core height of the core vertical shaft 1 can be changed.

  The connecting member 6 is detachably attached to the core vertical shaft 1 by the fixing means 11, and the core vertical shaft 1 deviates from the rotation range between the center raising position and the core lowering position when the connection member 6 is removed. When the core vertical shaft 1 is out of the rotation range, the drive pin 7a of the drive plate 7 and the engagement portion 10 are disengaged, and the core 8 can be removed together with the core holder 9. The core 8 can be easily removed simply by rotating the core vertical shaft 1 in the direction of centering, and after the core replacement, if the core vertical shaft 1 is rotated to the center-up position, the drive pin 7a The engaging portion 10 can be easily engaged, and the height of the core 8 is determined by the height of the drive pin 7a, so there is no need to adjust the core height after the core replacement. Easy to do.

  Further, a flat surface portion 1a is formed on the side surface of the core vertical shaft 1 to which the connecting member 6 is attached, and the connecting member 6 has a flat plate-shaped mounting piece 6b that contacts the flat surface portion 1a of the core vertical shaft 1 and a core vertical shaft. A connecting part 6 is positioned by the mounting piece 6b and the abutting part 6c and fixed by the fixing means 11, and the connecting member 6 is attached to the core vertical shaft 1. Since it can fix in the positioned state, the attachment operation | work of the connection member 6 in the case of a manufacturing line or core replacement | exchange can be performed easily.

  According to the present invention, a locking portion is formed by a locking hole 3 a provided in the rotating plate 3 and a locking piece 6 a of a connecting member 6 that is attached to the core vertical shaft 1 and is fitted to the locking hole 3 a of the rotating plate 3. 2, the core vertical shaft 1 is provided so as to be independently rotatable while the rotating plate 3 and the stopper 5 are engaged, and the locking piece 6 a of the connecting member 6 is the locking hole of the rotating plate 3. Since it drives along the inside of the latching hole 3a away from the latching position with 3a, the rotation range of the core vertical shaft 1 between the center raising position and the core lowering position can be regulated by the latching hole 3a. In addition, the rotating plate 3 can be made inexpensive with a simple structure, and the number of parts can be reduced to reduce the cost.

  Further, when the core vertical shaft 1 is rotated, the drive pin 7a of the drive plate 7 attached to the inner end of the core vertical shaft 1 is driven to move the core 8 up and down. The amount of rotation of the core vertical axis 1 between the core lowering positions can be reduced. For this reason, even if the core-extinguishing position of the normal fire is set by the locking hole 3a of the rotating plate 3, the locking hole 3a of the rotating plate 3 can be shortened, so that the strength of the rotating plate 3 is not reduced. realizable.

  Further, by changing the width and shape of the locking piece 6 a of the connecting member 6 attached to the core vertical shaft 1, the length of the locking hole 3 a of the rotating plate 3 and the engagement position of the rotating plate 3 and the stopper 5 are changed. Since the rotation range of the core vertical axis 1 can be changed while maintaining the same, the main parts such as the core vertical axis 1 and the rotary plate 3 can be shared even in models with different core heights, improving productivity. As a result, the cost can be reduced.

  The connecting member 6 is detachably attached to the core vertical shaft 1 by the fixing means 11, and the core vertical shaft 1 deviates from the rotation range between the center raising position and the core lowering position when the connection member 6 is removed. When the core vertical shaft 1 is rotated to this position, the drive pin 7a of the drive plate 7 and the engagement hole 10 of the core holder 9 are disengaged and the core 8 can be removed. Therefore, the core replacement work can be easily performed.

  The core vertical shaft 1 is provided with a flat surface portion 1a, the connecting member 6 is provided with a flat plate-like mounting piece 6b and a contact portion 6c, and when the connecting member 6 is attached to the core vertical shaft 1, the connecting member 6 is provided. The mounting piece 6b and the flat portion 1a of the core vertical shaft 1 are in contact with each other in a plane, and the contact portion 6c is in contact with the side surface of the core vertical shaft 1, so that the connecting member 6 does not wobble or tilt. Since it can be positioned easily and fixed by the fixing means 11 while being positioned on the core vertical axis 1, it can be easily and accurately attached, and the workability at the time of manufacturing line and core replacement is improved. .

  The present invention will be described with reference to a dial-type oil combustor shown in the figure. Reference numeral 12 denotes an oil tank, reference numeral 13 denotes a core-inner cylinder standing upright from the bottom surface of the oil tank 12, and reference numeral 14 denotes a removably attached top opening of the oil tank 12. A core outer cylinder, 8 is a core inserted into the core inner cylinder 13 so as to be movable up and down, and 1 is a core vertical axis for performing the core vertical operation. When the core vertical axis 1 is rotated, the core 8 follows the core inner cylinder 13. Move up and down.

  A combustion portion 15 is disposed above the core inner cylinder 13 and the core outer cylinder 14 and rotates the core vertical axis 1 in the core raising direction to move the core 8 upward, and the core 8 is moved by an ignition device such as an ignition heater. Is ignited, the fuel in the oil tank 12 sucked up at the lower end of the wick 8 starts to combust at the upper end of the wick 8, and the generated combustion flame and combustion gas rise and complete the combustion in the combustion section 15.

  Reference numeral 3 denotes a rotating plate that is loosely fitted to the core vertical shaft 1 and rotates around the core vertical shaft 1. Reference numeral 2 denotes a locking portion that interlocks the core vertical shaft 1 and the rotating plate 3. A return spring attached between the rotating plate 3 and the oil tank 12, 5 is a stopper that engages with the rotating plate 3 that rotates in the centering direction, and 3 b is an engagement with the stopper 5 provided on the rotating plate 3. The rotating plate 3 winds up the return spring 4 during the centering operation, and when the engaging tooth 3b of the rotating plate 3 engages with the stopper 5, the rotating plate 3 moves in the direction of lowering the center by the return spring 4. The rotational force of is maintained.

  16 is a vibration sensor that moves the stopper 5 engaged with the rotating plate 3. When the vibration detector 16 detects vibration, the stopper 5 is moved to disengage from the engagement teeth 3b of the rotation plate 3, The rotating plate 3 from which the stopper 5 is removed is rotated in the core lowering direction by the return spring 4, and the core vertical shaft 1 is driven in the core lowering direction together with the rotating plate 3 via the locking portion 2 to extinguish the fire. .

  Further, the core vertical shaft 1 is provided so as to be able to rotate independently from the locking portion 2 in a state where the rotation plate 3 and the stopper 5 are engaged, and the core vertical shaft 1 can be manually rotated. With normal fire extinguishing operation and the amount of combustion can be adjusted.

  When setting the core lowering position for normal fire extinguishing with such a configuration, if the core 8 is lowered too much, the fire extinguishing time will be shortened and cause a bad odor, so the fire is slowly extinguished while burning unburned gas. Therefore, it is necessary to set a high core lowering position during normal fire extinguishing.

  On the other hand, when setting the adjustment range of the combustion amount, in order to prevent abnormal combustion due to excessive lowering of the core, the rotation of the vertical axis 1 of the core is stopped during the lowering of the core to prevent the lowering of the core and the optimum use range. It is necessary to be able to perform combustion.

  However, if the structure is such that the core lowering position for normal fire extinguishing and the core height for adjusting the amount of combustion are restricted, there are disadvantages such as an increase in the number of parts and assembly processes and a decrease in the strength of the rotating plate 3. In addition, models with different frame sizes and maximum heating values have different core heights and pivot ranges of the core vertical axis 1, but in order to change the core height and pivot range of the core vertical axis 1, it is necessary to rotate each model. The moving plate 3 had to be prepared, and the productivity was poor, leading to an increase in cost.

  The present invention solves the above-mentioned problems. 3a is a locking hole formed by an arc-shaped long hole formed in the rotating plate 3, 6 is a connecting member attached to the core vertical shaft 1, and 6a is a connecting member 6. The locking piece 6a of the connecting member 6 is fitted in the locking hole 3a of the rotating plate 3 to form the locking portion 2. Yes.

  When the core up-and-down shaft 1 is rotated in the center-up direction, the connecting member 6 rotates in the center-up direction together with the core up-and-down shaft 1, and the locking piece 6 a of the connecting member 6 is the locking hole 3 a of the rotating plate 3. Since the rotating plate 3 is driven against the inner wall of the shaft, the rotating plate 3 rotates in the centering direction together with the core vertical shaft 1, and the engaging teeth 3b of the rotating plate 3 and the stopper 5 are in the centering position. Engage.

  On the other hand, when the stopper 5 is disengaged from the engaging portion 3 b and the rotating plate 3 is rotated in the core lowering direction by the return spring 4, the inner wall of the locking hole 3 a of the rotating plate 3 is the locking piece of the connecting member 6. Since the connecting member 6 is driven in 6a, the core vertical shaft 1 can be rotated together with the rotating plate 3 in the core lowering direction.

  When the pivot plate 3 and the stopper 5 are in the engaged state at the center raising position and the core vertical shaft 1 is pivoted in the core lowering direction, the locking piece 6a of the connecting member 6 is locked to the locking hole 3a. Since the core vertical axis 1 can be independently rotated away from the position, manual fire extinguishing operation and adjustment of the combustion amount can be performed.

  Then, when the core vertical shaft 1 is rotated while the rotating plate 3 and the stopper 5 are in the engaged state at the center raising position, the locking piece 6a of the connecting member 6 is driven along the locking hole 3a. Since the locking piece 6a of the connecting member 6 is brought into contact with the inner wall of the locking hole 3a of the rotating plate 3, the rotation of the core vertical shaft 1 is stopped. Therefore, the rotational range of the core vertical shaft 1 is the locking hole 3a. Is regulated by the length of.

  7 is a drive plate attached to the inner end of the core vertical shaft 1, 7a is a drive pin attached to the movable end of the drive plate 7, 9 is a core holder attached to the outer periphery of the core 8, and 10 is the core holder. The drive pin 7 a of the drive plate 7 is formed in the direction of the core 8 and is engaged with the engagement portion 10 of the core holder 9. When the core vertical shaft 1 is rotated, the drive plate 7 is driven together, the drive pin 7a is moved around the core vertical shaft 1, and a force is applied to the engaging portion 10 with which the drive pin 7a of the drive plate 7 is engaged. The core 8 integrated with the core holder 9 moves up and down along the core inner cylinder 13.

  In this configuration, the height of the core 8 is determined by the position of the drive pin 7a of the drive plate 7 that rotates about the core vertical axis 1, and the core height when the drive pin 7a of the drive plate 7 is positioned lowest. Since the core height is the highest when the drive pin 7a is located at the highest position, the pivot plate 3 is moved by the center spring position where the pivot plate 3 and the stopper 5 are engaged, and the return spring 4. The amount of rotation of the core vertical shaft 1 between the center-lowering position when the shaft rotates in the core-lowering direction can be set to half or less.

  And the core lowering position at the time of normal fire extinguishing which manually operates the core vertical shaft 1 is set higher than the core lowering position when the engagement between the rotating plate 3 and the stopper 5 is disengaged. The amount of rotation of the core vertical shaft 1 between the lowered position and the center raising position can be further reduced, and the locking hole 3a can be shortened even when the core lowering position for normal fire extinguishing is set by the locking hole 3a of the rotating plate 3. Can do.

  For this reason, even if the normal fire extinguishing core lowering position is set by the structure in which the locking hole 3a is formed in the rotating plate 3, the strength of the rotating plate 3 is not lowered, and the rotation range of the core vertical shaft 1 is reduced. Since there is no need to attach a regulating part to the rotating plate 3, the number of parts can be reduced, the assembling process can be greatly shortened, and it can be manufactured at a low cost.

  Reference numeral 11 denotes a fixing means constituted by a fixing screw for fixing the connecting member 6 to the core vertical shaft 1. By attaching the connecting member 6 having a different width or shape of the locking piece 6 a to the core vertical shaft 1, The rotation range and core height of the vertical shaft 1 can be easily changed. If the width of the locking piece 6a is shortened, the rotational range of the core vertical shaft 1 is widened, and the width of the locking piece 6a is increased. If it does so, the rotation range of the core vertical axis | shaft 1 will become narrow.

  FIG. 7 is an embodiment showing the structure of the connecting member 6 in which the shape of the locking piece 6a is changed, and FIG. 7 (a) is a view in which the width of the locking piece 6a on the center raising direction side is shortened. The core vertical shaft 1 rotates in the center-up direction by the amount of the width of the piece 6a, and the core height at the center-up position can be made higher than when the connecting member 6 of the embodiment of FIG. 2 is attached. it can. Further, if the width of the latching piece 6a on the core raising direction side is lengthened, the core height at the core raising position can be lowered, and if the width of the latching piece 6a on the core lowering direction side is changed, a normal fire extinguishing core is obtained. The lowering position can be changed.

  FIG. 7B shows the two locking pieces 6a of the connecting member 6. When the core vertical shaft 1 is rotated in the core lowering direction, the locking pieces 6a formed on the side of the core lowering direction are shown. Since the rotation of the core vertical shaft 1 can be stopped in the middle of lowering the center of the locking hole 3a, the adjustment range of the combustion amount can be set.

  Thus, when changing the core height and rotation range of the core vertical shaft 1, the engagement position of the rotation plate 3 and the stopper 5 and the length of the locking hole 3a of the rotation plate 3 remain the same. Since it is possible only by changing the shape of the locking piece 6a of the connecting member 6 attached to the core vertical shaft 1, even models with different maximum heat generation and frame shapes can be accommodated only by changing the shape of the connecting member 6. Since the vertical shaft 1 and the rotating plate 3 can be used in common, the productivity is improved and the cost can be reduced.

  In FIG. 2, 3 c and 3 d are rotation stoppers that stop the rotation of the rotating plate 3 at the center raising position and the center lowering position, and the rotation stoppers 3 b and 3 c are more than the engaging teeth 3 b of the rotation plate 3. It is comprised by the protrusion piece extended outside the movable range of the stopper 5 in the center raising position and the center lowering position. Since the rotation stopper 3c hits the stopper 5 when it is further rotated in the center raising direction from the engagement position between the engagement teeth 3b of the rotation plate 3 and the stopper 5, the rotation stopper cannot be exceeded in the movable range of the stopper 5. The vertical shaft 1 does not rotate beyond the center raising position, and when the hand is released from the core vertical shaft 1, the engaging teeth 3b of the rotating plate 3 and the stopper 5 are engaged. On the other hand, when the rotating plate 3 is rotated in the core lowering direction by the return spring 4, the rotation of the rotating plate 3 is stopped by the stopper 5 when the rotation stopper 3 d is in the core lowering position. It does not rotate beyond the lowered position.

  For this reason, when the connecting member 6 is attached to the core vertical shaft 1, the core vertical shaft 1 does not deviate from the rotation range between the center raising position and the center lowering position. In the rotation range, the engagement between the drive pin 7a of the drive plate 7 and the engaging portion 10 of the lead holder 9 is not disengaged.

  In this invention, the connecting member 6 is detachably attached to the core vertical shaft 1 by the fixing means 11, and the core vertical shaft 1 is located between the center raising position and the core lowering position when the connection member 6 is removed. It is designed to be able to rotate out of the rotation range. When the core is exchanged, the fixing means 11 is removed with the core outer cylinder 14 removed, and the connecting member 6 is removed from the core vertical shaft 1. When the core vertical shaft 1 is rotated to a position outside the rotation range between the center raising position and the center lowering position, the tip position of the drive pin 7a of the drive plate 7 is along the circumferential direction. Since the drive pin 7 a is separated from the engaging portion 10 away from the formed engaging portion 10, the core 8 can be extracted together with the core holder 9.

  After the core replacement, after rotating the core vertical shaft 1 and engaging the driving pin 7a of the driving plate 7 and the engaging portion 10 while returning the driving pin 7a of the driving plate 7 to the vicinity of the center raising position, The connecting member 6 is attached to the core vertical shaft 1, and the locking piece 6 a is fixed to the core vertical shaft 1 by the fixing means 11 at a position where the locking piece 6 a is engaged with the locking hole 3 a of the rotating plate 3. Since the position is determined by the position of the drive pin 7a, it is not necessary to adjust the core height after the core replacement, and the core replacement work can be easily performed.

  Further, as a specific structure of the connecting member 6, 1a is a flat portion formed on the side surface of the core vertical shaft 1 to which the connecting member 6 is attached, 6b is a mounting piece of the connecting member 6 formed in a flat plate shape, and 6c is an upper and lower portion of the core. The connecting member 6 of the embodiment shown in the drawing is configured by providing a hole in a bent piece formed at both ends of the mounting piece 6b. A locking piece 6a is formed at the tip of the contact portion 6c, and when the connecting member 6 is attached to the core vertical shaft 1, the mounting piece 6b of the connecting member 6 and the flat portion 1a of the core vertical shaft 1 are coincident. So that the hole as the contact portion 6c is inserted into and attached to the core vertical shaft 1, and the core vertical shaft 1 is rotated and adjusted to fix the locking piece 6a to the locking hole of the rotating plate 3. After the fitting to 3 a, the connecting member 6 is fixed to the core vertical shaft 1 by the fixing means 11.

  Since the mounting piece 6b of the connecting member 6 and the flat portion 1a of the core vertical shaft 1 are in contact with each other and the contact portion 6c is in contact with the side surface of the core vertical shaft 1, the connecting member 6 is wobbled or inclined. Since the connecting member 6 is fixed to the core vertical shaft 1 by the fixing means 11 in the positioned state, it can be easily and accurately attached to the core vertical shaft 1 and can be mounted on the production line. The workability of assembly work and core replacement work was improved.

It is principal part sectional drawing of the oil combustor which shows the Example of this invention. It is a principal part front view which shows the state at the time of centering of the oil combustor which shows the Example of this invention. It is a principal part front view which shows the state at the time of the core lowering of the oil combustor which shows the Example of this invention. It is principal part front sectional drawing which shows the state at the time of the core replacement | exchange of the oil combustor which shows the Example of this invention. It is principal part sectional drawing which shows the state at the time of the core raising of the oil combustor which shows the Example of this invention. It is principal part sectional drawing which shows the state at the time of the core replacement | exchange of the oil combustor which shows the Example of this invention. It is a principal part front view which shows the Example of the connection member of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Core vertical axis 1a Flat surface part 2 Locking part 3 Rotating plate 3a Locking hole 4 Return spring 5 Stopper 6 Connecting member 6a Locking piece 6b Mounting piece 6c Abutting part 7 Drive plate 7a Drive pin 8 Core 9 Core holder 10 Engagement part 11 fixing means

Claims (4)

A core up / down shaft 1 for performing the core up / down operation, and a rotating plate 3 that is rotatably mounted around the core up / down shaft 1 and is driven by the locking portion 2 when the core up / down shaft 1 is rotated in the center raising direction. When,
A return spring 4 attached to a rotating plate 3 for driving the core vertical shaft 1 in the core lowering direction via the locking portion 2;
In the oil combustor provided with the stopper 5 for holding the rotational force of the rotating plate 3 by the return spring 4,
An arcuate locking hole 3a is formed in the rotating plate 3,
A connecting member 6 provided with a locking piece 6 a that fits into the locking hole 3 a of the rotating plate 3 is attached to the core vertical shaft 1, and the locking is performed by the connecting member 6 and the locking hole 3 a of the rotating plate 3. Part 2
The core vertical shaft 1 is provided so as to be rotatable while the rotating plate 3 and the stopper 5 are engaged,
While the locking hole 3a of the rotating plate 3 and the locking piece 6a of the connecting member 6 regulate the rotation range of the core vertical shaft 1,
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 7 a formed from the movable end of the drive plate 7 toward the core 8, and a core holder 9 An engagement portion 10 that is attached and engages with the drive pin 7a of the drive plate 7;
An oil combustor core lifting / lowering apparatus characterized in that the core 8 is moved up and down by a drive pin 7a of a drive plate 7 which is movable when the core vertical shaft 1 is rotated.   2. The core raising / lowering device of an oil combustor according to claim 1, wherein the connecting member is fixed to the core vertical shaft by a fixing means.   The connecting member 6 is detachably attached to the core vertical shaft 1 by the fixing means 11, and the core vertical shaft 1 rotates out of the rotation range between the center raising position and the core lowering position when the connection member 6 is removed. When the core vertical axis 1 is out of the rotation range, the drive pin 7a of the drive plate 7 and the engagement portion 10 are disengaged, and the core 8 can be extracted together with the core holder 9. The core lifting / lowering device for an oil combustor according to claim 1. A flat surface 1a is formed on the side surface of the core vertical shaft 1 to which the connecting member 6 is attached,
The connecting member 6 is formed with a flat plate-shaped mounting piece 6b that contacts the flat surface portion 1a of the core vertical shaft 1 and an abutting portion 6c that contacts the side surface of the core vertical shaft 1.
2. The oil combustor core lifting and lowering device according to claim 1, wherein the connecting member is positioned by the mounting piece and is fixed by the fixing means.

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