JPS6257885B2 - - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a wick holding device for a wick type liquid fuel combustor, and particularly relates to a wick holding device for a wick holder and a rotating shaft. In a liquid fuel combustor that raises and lowers the wick together with a wick holder by meshing with gears,
This invention relates to a configuration for attaching a lamp wick to a wick holder.

(Prior art) Conventionally, in a liquid fuel combustor with an upper and lower core,
As is well known, a structure is adopted in which the rack of the lead holder and the gear of the rotating shaft are engaged with each other, and the lead holder is raised and lowered by rotation of the rotating shaft.

(Problems to be Solved by the Invention) According to the above configuration, when replacing the lamp wick,
The wick holder must be removed by disengaging the rack from the gear, and when installing the wick holder after replacing the wick, the meshing position of the rack must match the rotation angle position of the gear. First, the task of replacing the wick was complicated.

The present invention was made in view of the above problem, and an object of the present invention is to improve the workability of replacing the lamp wick by allowing the lamp wick to be replaced without disengaging the rack and the gear. .

[Structure of the invention]

(Means for Solving the Problems) The present invention has a wick holder that holds a cylindrical wick inside and a rack attached to the outside, and a gear meshed with the rack of the wick holder, and the wick is rotated. In the above-mentioned wick type liquid fuel combustor, the wick holder includes a wick fixing tube that holds the wick inside, and a wick fixing tube that can be attached to and detached from the inner periphery of the wick fixing tube. and a core holding cylinder that fits into the rack and attaches the rack to the outside, and is removably fixed by a fixing means to a protrusion formed on the outer periphery of the upper end of the core fixing cylinder and the lead holding cylinder, respectively. .

(Function) In the present invention, when replacing the wick, the wick fixing tube and the wick holding tube are unfixed by the protruding edges, and only the wick fixing tube holding the wick is pulled out from the wick holding tube, and the wick is replaced. .

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In FIG. 1, 1 is a fuel tank, in which a core guide inner cylinder 2 is formed vertically,
A wick guide outer tube 4 attached to a removable burner basket 3 is provided on the upper outer side of the wick guide inner tube 2, and a cylindrical lamp wick 5 is disposed between the core guide inner tube 2 and the core guide outer tube 4. are fitted and inserted so as to be vertically movable, and a double-tube combustion tube 6 is removably placed on top of the core guide inner cylinder 2 and the core guide outer cylinder 4.

7 is a lead holder, and this lead holder 7 is formed of a lead fixing cylinder 8 and a lead holding cylinder 9, as shown in FIG. This wick fixing tube 8 is connected to the lamp wick 5.
A large number of protrusions 10, which have an inner diameter that fits into the lower outer circumference of the lamp, and which lock the lamp wick 5 on the inner circumferential surface thereof, are formed by cutting or protruding. Further, an annular projecting edge 11 is formed on the outer periphery of the upper end of this core fixing cylinder 8,
A plurality of fixing holes 12 are formed in this protrusion 11 at equal intervals. The core holding tube 9 has an inner diameter into which the core fixing tube 8 can be fitted, and an annular ridge 13 is formed on the outer periphery of the upper end to overlap the lower surface of the ridge 11 of the core fixing tube 8. A threaded hole 14 facing each of the fixing holes 12 is formed in this flange 13. In addition, a rack 15 is provided on the outer surface of this core holding cylinder 9.
is fixed by welding etc. This easy 1
5 is formed with a horizontal rack tooth portion 16 and a lifting rack tooth portion 17 that is continuously inclined downward at one end of the horizontal rack tooth portion 16, and a vertical rack tooth portion 17 that is inclined downwardly at one end of the horizontal rack tooth portion 16. The release portion 18 is cut out. Then, the wick fixing tube 8 into which the lamp wick 5 is fitted inside and fixed by the protrusion 10 is removably fitted into the wick holding tube 9, and the screw of the ridge 13 is inserted through the fixing hole 12 of the ridge 11. A screw 19 serving as a fixing means is screwed into the hole 14 to fix the core fixing tube 8 and the core holding tube 9.

Further, as shown in FIG. 1, a cylindrical mounting bracket 20 is fixed to the front side of the fuel tank 1, and a positioning collar 2 is inserted into the mounting bracket 20 from the inner end side.
1. Packing 22 for preventing oil leakage, washer 23,
The coil spring 24 is fitted, and a bearing bolt 25 is further screwed onto the outer end side. A gear 27 that meshes with the rack teeth 16 and 17 of the rack 15 is provided at the inner end of the shaft 26, and a knob 4 is provided at the outer end of the rotating shaft 26.
5 is installed. A shielding plate 3a is provided inside the burner basket 3 and is opened and closed by the rotating shaft 26. This shielding plate 3a
has the configuration described in Japanese Patent Application Laid-Open No. 55-72727.

The rotating shaft 26 is provided with a spring case 2 made of synthetic resin.
8 is fitted, and a coiled center lowering spring 29 is housed inside this spring case 28, and one end of this center lowering spring 29 is locked to a spring locking ring 30 that is fitted and fixed to the bolt 25. At the same time, the other end is locked to a notch engaging portion 31 formed in the spring case 28. Further, a push spring 3 fitted to the rotating shaft 26 is provided between a spring receiving recess formed on the inner end side of the spring case 28 and an outer end surface of the bolt 25.
3 is interposed. Furthermore, the spring case 2
A ratchet plate 34 is integrally formed on the outer periphery of 8.

Further, as shown in FIGS. 3 and 4, a notch recess 35 is provided on one side of the outer end of the spring case 28, and a shaft pin 36 is erected approximately at the center of this recess 35. A generally dogleg-shaped flexible pin 37 whose intermediate portion is engaged with a shaft pin 36 is provided in the recess 35 so as to be rotatable within a certain range in the left-right direction. Drive pins 38, which are selectively engaged with both ends of the adjustable pin 37, are attached to the rotary shaft 26 by screwing or the like. Further, this flexible pin 37 is connected to the flexible spring 4 via a flexible washer 39.
It receives zero compression force and will not rotate unless external force is applied. Further, the spring case 28 is pressed against the drive pin 38 by the pressing force of the pressing spring 33.

Reference numeral 44 denotes a fire extinguishing system that is linked to a vibration sensing mechanism.
An engaging pin 42 provided at the tip of the engaging pin 42 engages with a sawtooth ratchet tooth 43 on the ratchet plate 34. In this state, as the ratchet plate 34 rotates in one direction, the engaging pin 42 are sequentially engaged with and disengaged from the ratchet teeth 43 of the ratchet plate 34.

Next, the operation will be explained.

As shown in FIGS. 3a and 4a, when the wick 5 is raised while accumulating reversal torque in the wick lowering spring 29, rotating the rotating shaft 26 clockwise causes the rotating shaft 26 to rotate. The drive pin 38 rotates in the direction of the arrow and presses one side of the flexible pin 37, and the other side of the flexible pin 37 is pressed against the spring case 2.
In this state, the spring case 28 also rotates clockwise, and the rotation shaft 26
When the gear 27 of the rack 15 meshes with the elevating rack teeth 17 from the horizontal rack teeth 16, the wick holder 7 rises, and the wick 5 rises together with the wick holder 7.

In addition, when lowering the lamp wick 5 to extinguish the fire, as shown in FIGS. 3b and 4b, by rotating the rotating shaft 26 counterclockwise, the drive pin 38
rotates once with the rotating shaft 26, and when it makes its second rotation, it pushes one side of the flexible pin 37, reversely rotates the flexible pin 37, and the flexible pin 37 comes into contact with the wall surface of the recess 35 of the spring case 28. In this state, the drive pin 38 is disengaged from the free pin 37 and rotates approximately half a turn, and the lead holder 7 is lowered by the engagement between the gear 27 of the rotating shaft 26 and the elevating rack teeth 17. The lamp wick 5 descends together with the wick holder 7 and the fire is extinguished.

Furthermore, when the lamp wick 5 next rises, as shown in FIGS. 3c and 4c, the drive pin 38 engages with the other side of the flexible pin 37 by clockwise rotation of the rotation shaft 26, so that the drive pin 38 can be freely moved. The pin 37 is rotated until it comes into contact with the wall surface of the recess 35, disengaging from the universal pin 37, and then rotated one more time to engage one side of the universal pin 37, as shown in FIG. 3a and FIG. The lamp wick 5 rises as the relationship shown in Figure 4a is established. During these operations, the spring case 28 is held in a fixed state because the engagement pin 42 engages with the ratchet plate 34.

Furthermore, when the engagement pin 42 is disengaged from the ratchet plate 34 by the vibration sensing mechanism while the lamp wick 5 is rising, the wick lowering spring 2 is loaded with a return force when the lamp wick 5 is rising.
9, the spring case 28 is rapidly rotated counterclockwise from the state shown in FIGS. 3a and 4a, and the swivel pin 37 engages with the drive pin 38 to rotate the rotating shaft 26. The wick 5 descends and extinguishes the fire.

When replacing the wick 5, remove the burner basket 3 from the fuel tank 1, remove the screw 19 and remove the wick fixing tube 8 from the wick holding tube 9, and then attach it to the wick fixing tube 8 using the protrusion 10. The lamp wick 5 that has been placed is also taken out together with the wick fixing tube 8. In this state, the wick 3 of the wick fixing tube 8 is replaced. Then, fit the wick fixing tube 8 to which the replaced lamp wick 5 is attached into the wick holding tube 9, overlap the projecting edges 11 and 13, and screw the screws 19 inserted through each fixing hole 12 into the screw hole 14. The core holder 7 is assembled by fitting and tightening, and the burner basket 3 is attached in this state. In this way, the lamp wick 5 can be replaced by following the rack teeth 1 of the rack 15.
This can be done without disengaging the gears 6, 17 and the gear 27.

In addition, for repairs or the like, the lead holder 7 can be removed entirely by rotating the lead holding cylinder 9 and positioning the gear 27 on the release part 18 formed on the other side of the horizontal rack tooth part 16.

Next, another embodiment will be described with reference to FIG.

A plurality of, for example, three, engaging holes 46 are formed at equal intervals in the annular protrusion 11 formed at the upper end of the core fixing tube 8 of the core holder 7, and one fixing hole 12 is formed. Further, the core holding cylinder 9 has an annular projecting edge 13 formed at the upper end thereof, and an engaging pawl 47 is formed by cutting and raising it in the circumferential direction so as to face each of the engaging holes 46. A screw hole 14 is formed opposite to 12. Then, the core fixing cylinder 8 is fitted into the lead holding cylinder 9, the engaging claw 47 is fitted into the engaging hole 46, and the core fixing cylinder 8 is rotated so that the engaging claw 47 is attached to the periphery of the engaging hole 46. and the screw 1 inserted through the fixing hole 12.
The lead holder 7 is assembled by screwing and tightening the lead 9 into the screw hole 14.

In this way, by using the engaging hole 46 and the engaging claw 47 as the fixing means, the number of screw tightening operations is reduced, and the workability of assembling the core holder 7 is improved.

Note that an engaging claw may be formed on the flange 11 of the core fixing cylinder 8 and an engaging hole may be formed on the flange 13 of the core holding cylinder 9.

In addition, the rack 15 fixed to the core holding cylinder 9
As shown in FIG. 5, the other end of the horizontal rack tooth portion 16 is bent so as to project outward to form an engaging portion 48 between it and the outer surface of the lead holding cylinder 9, and the protrusion Rim 13
The locking pin 5 is screwed in and out of the screw hole 49 formed in the
0 is inserted into the engaging portion 48 to prevent the gear 27 meshed with the horizontal rack tooth portion 16 from coming off from the release portion 18. By doing this, for example, when removing the wick fixing tube 8 from the wick holding tube 9 when replacing the lamp wick 5, the wick fixing tube 8 can be easily removed.
Even if the core holding cylinder 9 is rotated when the core holding cylinder 9 is rotated, the gear 27 comes into contact with the locking pin 50, and the gear 27 does not come off the horizontal rack tooth part 16 and come out of the release part 48.

〔Effect of the invention〕

According to the present invention, when replacing the wick, the wick fixing tube and the wick holding tube are unfixed by the protruding edges, and only the wick fixing tube holding the wick is pulled out from the wick holding tube.
All you have to do is replace the wick, and therefore there is no need to remove the wick holding tube in which the rack engages with the gear on the rotating shaft, and there is no need for complicated positioning operations to engage and disengage the rack and gear. The wick can be easily replaced. In addition, when water is mixed in the fuel, the wick fixing tube that is in contact with the wick is likely to generate rust, but the wick fixing tube with a rack does not come into direct contact with the wick, so there is no risk of rusting. Even if rust occurs in the core fixing tube, it is sufficient to replace the relatively inexpensive core fixing tube, improving economic efficiency.

In addition, the core fixing tube and the core holding tube of the lead holder are connected to each other at their upper protrusions using fixing means such as screws, so that the core fixing tube can be easily fixed and released from the core holding tube. Can be done.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a liquid fuel combustor showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the core holding device, FIG. 3 is a cross-sectional plan view of the drive transmission section of the rotating shaft, and Figure 4 is a front view of the drive transmission section of the rotating shaft,
FIG. 5 is an exploded perspective view of a lead holding device showing another embodiment. 5... Lamp wick, 7... Wick holder, 8... Core fixing tube, 9... Core holding tube, 11... Flange of wick fixing tube 8, 13... Flange of wick holding tube 9, 15... Rack, 19... Screw as fixing means, 26... Rotating shaft, 27... Gear, 46, 47... Engagement hole and engagement claw as fixing means.

Claims (1)

[Scope of Claims] 1. A wick holder that holds a cylindrical wick inside and has a rack attached to the outside, and a gear meshed with the rack of the wick holder, and the lamp wick is raised and lowered together with the wick holder by rotation. In the above-mentioned wick type liquid fuel combustor, the wick holder includes a wick fixing tube that holds the lamp wick inside, and a wick fixing tube that is removably fitted to the inner periphery of the lamp holder. A liquid fuel with an upper and lower core, characterized in that it is formed by a core holding cylinder attached to the outside, and has projecting edges formed on the outer periphery of the upper end of the core fixing cylinder and the core holding cylinder, respectively, which are removably fixed by a fixing means. Combustor wick holding device. 2. The wick of the vertical wick type liquid fuel combustor according to claim 1, characterized in that projecting edges formed on the outer peripheries of the upper ends of the wick fixing cylinder and the wick holding cylinder are removably fixed with screws. holding device. 3. A feature in that the protrusions formed on the outer peripheries of the upper ends of the core fixing tube and the core holding tube are removably fixed by an engagement hole and an engagement claw that is detachably engaged with the engagement hole. A wick holding device for a wick type liquid fuel combustor as claimed in claim 1.