JPS643934Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a wick up-and-down mechanism for a liquid fuel combustion device.

[Technical background of the invention]

A vertical rack provided on the wick holder that holds the wick is engaged with a gear provided on the wick vertical shaft, and the wick is moved up and down by rotation of the wick vertical shaft, and as the wick rises, the wick lowers the spring. In a liquid fuel combustion device in which the wick is lowered by applying force and storing force in a wick lowering spring, when the wick holder is removed when replacing the wick, a snap spring or the like is used to restrict the axial movement of the wick's vertical axis. Remove the locking tool, pull the lead vertical axis forward in the axial direction, disengage the gear of the lead vertical axis from the vertical rack of the lead holder, and then remove the lead holder. There is a method of removing or loosening the attached parts, extracting the lead vertical axis, and then removing the lead holder.

[Problems with the Background Art]

In the case of the above-mentioned method, the wick vertical axis can be pulled or removed regardless of the wick position, so unless the worker performs the work according to the instructions, the lamp will not return to the state before replacement. Problems such as an inability to lower the core due to insufficient power stored in the core lowering spring and an increase in core lifting torque due to excessive power stored in the core lowering spring tend to occur, and furthermore, the work is complicated and time-consuming.

[Purpose of invention]

The present invention has been developed in view of the above-mentioned points, and is an attempt to remove the lead holder without pulling the lead vertical axis towards you or disassembling it.

[Summary of the invention] The present invention meshes a vertical rack provided on a wick holder that holds a lamp wick with a gear provided on a wick vertical shaft, moves the lamp wick up and down by rotation of the wick vertical axis, and In a wick up-and-down mechanism for a liquid fuel combustion device, in which a force is stored in a wick lowering spring when the wick rises, and the wick is lowered by the accumulated force of this wick lowering spring, there is provided a wick vertically opposite to the vertical rack and perpendicular to the gear. An open part is formed in a part of the gear guide provided on the core holder so as to hold the gear in mesh with the vertical rack, and a gear guide body is provided in this open part to hold the gear and the vertical rack in mesh with each other. It is characterized by being removable, and when replacing the wick, remove the gear guide body in the open part and rotate the wick holder to separate the gear from the vertical rack through the open part. Then, pull out the wick holder and take out the wick.

[Example of idea]

Next, the present invention will be specifically explained based on embodiments shown in the drawings.

Fig. 1 shows a part of a kerosene stove, 1 is a fixed tank, and an inner cylinder 2 for guiding the wick is integrally installed from the bottom of the fixed tank 1, and the above-mentioned inner cylinder is installed at the upper part of the fixed tank 1. A burner basket 4 having an outer tube 3 for guiding the wick to the outside of the tube 2 is removably installed upright, and a cylindrical lamp wick 5 is fitted between the inner tube 2 and the outer tube 3 so as to be vertically movable. Fire pans 2a and 3a located above the lamp wick 5 and formed inside the upper part of the inner cylinder 2 and outside the upper part of the outer cylinder 3.
A dual-tube type combustion cylinder 6 is mounted on the holder.

Further, on the outer peripheral side of the lower part of the lamp wick 5, as shown in FIGS. 2 and 3, a cylindrical wick holder 7 is provided.
The lamp wick 5 is held in the wick holder 7 via a large number of protrusions 8 provided on the inner circumferential side of the wick holder 7, and is easily attached to the outer circumferential side of one side of the wick holder 7. A body 9 is attached.

The rack body 9 includes the figures 2 and 3.
As shown in the figure, a vertical rack 10 is integrally formed, a gear guide 11 is integrally formed opposite the lower part of the vertical rack 10, and further, between the vertical rack 10 and the gear guide 11, A stopper 12 is integrally formed at a lower portion of the holder.

A horizontal support part 13 is integrally formed on the outer side of the upper end of the gear guide 11, and a part above the support part 13 where the gear guide 11 is not provided, that is, an open part 14 of the gear guide 11 with respect to the vertical rack 10. A cylindrical gear guide body 15 is provided removably by screwing with the support part 13,
Together with the gear guide 11, it faces the vertical rack 10.

Further, an annular hook 16 is fitted into the outer peripheral side of the gear guide body 15, and this hook 16 and a claw portion 18 provided on the collar portion 17 at the upper end of the core holder 7 connect to a ball chain as a string. They are connected by 19.

The gear guide body 15 has a rotation operation part 20 that engages with a driver at its upper end, and a small-diameter guide pin 21 at its lower end, and the support part is attached to the upper part of this guide pin 21. 13 is formed, and the upper end of the guide body 15 is supported by being in contact with the end 17a of the collar 17 of the lead holder 7.

Further, the outer end of a cylindrical mounting bracket 25 is fixed to one side of the fixed tank 1, and the rack body 9 is attached to the tip of the mounting bracket 25 inside the mounting bracket 25.
A core vertical shaft 27 equipped with a gear 26 that meshes with the vertical rack 10 is inserted from the outside, and a collar 28 for positioning and a collar 28 for preventing oil leakage are provided on the inner periphery of the core vertical shaft 27. The seal 29, the seal washer 30, and the seal spring 31 are fitted in this order, and a positioning bolt 33 having a shaft through hole 32 is fitted, and the positioning bolt 33 is screwed onto the inner peripheral side of the outer side of the mounting bracket 25. It is worn.

Note that FIG. 1 shows a state in which the wick 5 has risen completely, that is, a state in which ignition and combustion are possible. The gear guide 11 comes into contact with the collar 28 to maintain the above-mentioned engagement, and from this state the core vertical shaft 2
7 in the counterclockwise direction, the wick 5 is lowered via the wick holder 7 due to the meshing relationship of the gear 26 with the vertical rack 10, and as shown in FIG. 2, when the wick 5 is completely lowered, The gear guide body 15 comes into contact with the collar 28 of the core vertical shaft 27 and the gear 26
The engagement between the vertical rack 10 and the vertical rack 10 is maintained.

Further, a spring case 34 made of synthetic resin is fitted on the outer side of the core vertical shaft 27, located on the outer side of the positioning bolt 33, that is, on the outer side of the fixed tank 1. In this case, a coiled core lowering spring 35 is connected to the core vertical axis 2.
One end of this core lowering spring 35 is locked to a spring stopper 36 fitted to the positioning bolt 33, and the other end is located on the outer circumferential side of the spring case 7. 34 is engaged with a notch engaging portion 37 provided on one side thereof.

Further, a coil-shaped holder spring 38 is interposed between the inner surface of the spring case 34 and the outer surface of the positioning bolt 33, located on the inner peripheral side of the core lowering spring 35.

A synthetic resin ratchet plate 39 integrally molded with the spring case 34 is provided on the outer peripheral side of the spring case 34, and a notch is provided on one outer side of the spring case 34. A recess 40 is provided, and a pin receiving metal fitting 41 is fitted into this notch recess 40 and fixed with a screw 42, and a driving pin 43 is connected to this pin receiving metal fitting 41.
is erected on the core vertical shaft 27 by screwing.

Further, 44 is a lever connected to a vibration sensor and a fire extinguishing button (not shown), and the tip of this lever 44 has a serrated protrusion 4 on the outer periphery of the ratchet plate 39.
A locking pin 46 is provided that engages with the lever 4 to restrict counterclockwise rotation of the ratchet plate 39.
4 is always biased in the direction in which the locking pin 46 and the protruding piece 45 engage with each other. Note that the locking pin 46
When the ratchet plate 39 is rotated clockwise, the serrated protrusions 45 are sequentially moved.

Note that 47 is a dial knob, which is fitted onto the outer end of the core vertical shaft 27.

Next, the effect of the above configuration will be explained.

When the lamp wick 5 is raised and used for ignition, the wick vertical shaft 27 is rotated clockwise via the dial knob 47, but in this way, the drive pin 43 fixed to the wick vertical shaft 27 is moved into the pin receiver. The metal fitting 41 is pushed and rotated clockwise, and as a result, the spring case 34 itself also rotates clockwise while accumulating a reversing force in the core lowering spring 35, and the sawtooth shape of the ratchet plate 39 The protruding piece 45 and the locking pin 46 of the lever 44 sequentially engage to restrict the counterclockwise rotation of the spring case 34, and the lamp wick 5 rotates until it is completely raised.

In addition, when the lamp wick 5 is completely lowered to the lowest position to extinguish the fire, when the extinguishing button (not shown) is operated and the lever 44 is moved in the opposite direction to the direction in which it is energized, the locking pin 46 is attached to the ratchet plate. 39, the spring case 34 rapidly rotates counterclockwise due to the reversing force stored in the core lowering spring 35, thereby driving the pin receiver 41. Push the pin 43 to move the core vertical axis 27
is rotated counterclockwise, and the lamp wick 5 descends to the lowest position.

Note that even if a seismic sensor (not shown) is activated while the lamp wick 5 is raised, the lever 44 is operated in the opposite direction to the biased direction, and the wick lowering spring 35 is activated in the same manner as described above. As a result, the lamp wick 5 descends to the lowest position.

Then, when replacing the lamp wick 5, do so with the lamp wick 5 completely lowered to the lowest position as shown in Fig. 2. In this state, remove the combustion tube 6 and burner basket 4, and then use a screwdriver to remove the gear guide body. 15 and remove it from the support part 13 to open the opening part 14. Next, rotate the lead holder 7 clockwise in FIG.
In this state, move the lead holder 7 to the left in the illustration.
Pull it upward and take out the wick 5 from the tank 1. Then, replace the old wick 5 with a new wick 5.
is held in the removed wick holder 7, and the wick holder 7 and the wick 5 are fitted into the inner cylinder 2 and inserted into the tank 1, and the heights of the gear 26 and the open part 14 of the gear guide 11 are made to match, Next, the core holder 7 is rotated counterclockwise in FIG. 3 to engage the gear 26 with the upper part of the vertical rack 10, and then, using the guide pin 21 as a guide, the external threaded portion 22 of the gear guide body 15 is loosened. Screw it onto the support part 13 of the body 9, tighten it with a screwdriver, and as shown in FIG. 2 again,
The engagement between the gear 26 and the vertical rack 10 is maintained by the gear guide body 15 and the gear guide 11, and finally, the burner basket 4 and the combustion tube 6 are attached.

In this case, the removal and installation of the core holder 7 are as follows:
This is possible only at the position where the height of the open part 14 of the gear guide 11 and the gear 26 match, so when replacing the wick 5, there is no worry that the mechanism of the wick lowering spring 35 and the position of the wick holder 7 will be misaligned, and the wick can be lowered. There is no need to worry about the spring 35 not having enough power or having too much power stored.

Further, since the gear guide body 15 is connected to the wick holder 7 by the ball chain 19, the wick 5
When replacing the gear, the gear guide body 15 is not lost or dropped into the tank 1, and in addition,
Since there is no need to disassemble the area around the core vertical shaft 27, the work can be done easily.

[Effect of idea]

As described above, according to the present invention, when replacing the wick, there is no need to remove parts around the wick's vertical axis, pull the wick's vertical axis, or disassemble it, and the height of the wick holder's removal and installation can be reduced. Since it is regulated by the position of the open part of the gear guide, that is, the position of the removable gear guide body, there is no fear that the wick lowering spring mechanism and the position of the wick holder, that is, the position of the wick, will be misaligned when replacing the wick. Therefore, the inability to extinguish the fire due to insufficient power storage in the core lowering spring, and the increase in core lifting torque and inability to raise the core due to excessive power storage do not occur, and the work can be done easily.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention; Fig. 1 is a vertical cross-sectional view of a part of the kerosene stove, Fig. 2 is a front view of its main parts, and Fig. 3 is a plan view of its main parts. . 5... Lamp wick, 7... Wick holder, 10... Vertical rack, 11... Gear guide, 14... Opening part, 1
5... Gear guide body, 19... Ball chain as string, 26... Gear, 27... Core vertical axis, 3
5... Core lowering spring.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A vertical rack provided on a wick holder holding a lamp wick and a gear provided on the wick vertical axis are engaged,
The above-mentioned lamp wick is moved up and down by rotating the wick up and down axis,
When the wick rises, a force is stored in a wick lowering spring, and the wick is lowered by the accumulated force of the wick lowering spring, wherein the gear and the vertical rack are brought into mesh with each other in opposition to the vertical rack. An opening is formed in a part of the gear guide provided on the core holder so as to hold the gear, and a gear guide body for holding the gear and the vertical rack in a meshed state is removably provided in the opening. A wick up-and-down mechanism for a liquid fuel combustion device featuring: (2) The wick up-and-down mechanism for a liquid fuel combustion device according to claim 1, wherein a part of the gear guide body and the wick holder are connected by a string.