JPH07117206B2 - Oil combustor core lifting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a core lifting device for a wick type oil combustor.

2. Description of the Related Art Generally, in this type of oil combustor, a wick is moved up and down to burn and extinguish, and recently, as shown in FIG. 11, a rack 77 attached to a wick up / down lever 76 is used.
And a fine adjustment mechanism that drives the core up-down lever 76 in small steps by a pinion 79 that can be moved in and out of contact with the rack 77 installed on the operation base 78 side, so that the heat power can be easily adjusted within the combustion range. You can see what you did. In the figure, 80 is a slide shaft that holds the pinion 79 rotatably and slides back and forth with respect to the operation base 78, 81 is a fine adjustment knob that drives the pinion 79 via the slide shaft 80, and 82 is a pinion. After adjusting the positional relationship between 79 and the rack 77 in the vertical and front-rear directions to the proper dimensions, a fixing screw that integrates the rack 77 with the core up-down lever 76, 83 is for supporting the rack 77 coaxially with the core up-down lever 76. It is a rack shaft.

SUMMARY OF THE INVENTION However, the oil combustor having the above-mentioned configuration is provided with a fine adjustment knob.
A slide shaft 80 for transmitting the pushing force of the fine adjustment knob 82 to the pinion 79 is required between the 82 and the pinion 79, and there is a problem that the configuration is complicated and the size becomes large.

Therefore, the questioner considered a fine adjustment mechanism in which the slide shaft was abolished by directly pushing the operation button to directly drive the pinion. However, this mechanism has the problem that the rack feed amount by the pinion varies depending on the size of the gap between the shaft that pivotally supports the operation button and the hole that inserts and supports the shaft, and the number of fine adjustment stages is not stable, and that the resistor There was a problem that the base body of the support body and the lid body could not be temporarily fixed due to the reaction force and it was very difficult to work.

The present invention has been made in view of such a point, and while achieving simplification of the configuration, the backlash between the shaft pivotally supporting the operation button and the hole supporting the shaft is eliminated to stabilize the number of fine adjustment steps, and the fine adjustment mechanism is also provided. The assembly workability of is improved.

Means for Solving the Problems The present invention provides a vertically movable wick to achieve the above object,
A core up / down mechanism having a core up / down lever for vertically moving the light core, and a fine adjustment mechanism for driving the core up / down mechanism in small increments. The fine adjustment mechanism is a vertically movable rack linked with the core up / down lever. A support for holding the rack so that the rack can move up and down, a pinion provided so as to move toward and away from the rack so as to drive the rack, and an operation button for operating the pinion, and A resistor is provided between the support and the rack, and the support is composed of two parts: a base body in which a shaft for pivotally supporting an operation button is implanted and a lid body having a hole for inserting the shaft. ,
In addition, the hole of the lid body is configured to have a large portion that is larger than the diameter of the shaft of the base body and a portion that has the same or smaller size.

Operation The present invention allows the combustion amount to be adjusted by either the core up-down mechanism or the fine adjustment mechanism according to the above-described structure, and further, simplification of the structure and play between the shaft for pivotally supporting the operation button and the hole for supporting the shaft. Thus, the number of fine adjustment steps can be stabilized and the workability of assembling the fine adjustment mechanism can be improved.

EXAMPLE An example will be described below with reference to FIGS. 1 to 10. First, in FIGS. 1 to 3, 1 is a core guide cylinder, 2 is a core outer cylinder which is arranged on the outer periphery of the core guide cylinder 1 with a gap, and 3 is a core guide cylinder 1 and a core outer cylinder 2. A wick 4 vertically movably provided between the wicks 3 is a combustion tube for burning the fuel vaporized from the wick 3.

Next, a manually operated core up / down mechanism 5 for vertically moving the wick 3
Will be described. First, 6 is a core up-down lever for moving the wick 3 up and down, one end of which is linked to the wick 3 through an appropriate linking means. The core up / down lever 6 is rotatably supported by a pin 8 on a core up / down base plate 7 in the middle thereof. Reference numeral 9 denotes an ignition lever pivotally supported by the pin 8 together with the core up / down lever 6 on the core up / down base plate 7.
The ignition device (not shown) is operated to ignite the wick 3, and after the ignition operation, it automatically returns to its original position. Reference numeral 10 denotes a core upper / lower plate pivotally supported on the core upper / lower base plate 7 by pins 8 together with the core upper / lower lever 6 like the ignition lever 9, and is adapted to be linked to the core upper / lower lever 6 by an appropriate means. 11 is the core upper and lower plates
With a spring that urges 10 toward the upper position (the wick lowering position),
It is hooked between the ends of the core upper and lower plates 10 and the core upper and lower substrates 7. Reference numeral 12 is a lock plate that holds the core upper and lower plates 10 at a lower position (a wick rising position), and is pivotally supported by a pin 12a. This lock plate 12 is a pin that is planted in the upper and lower core plates 10.
A long hole 14 through which the 13 is inserted is formed, and a locking portion 14a is formed at the terminal end of the long hole 14 to lock the pin 13. That is, when the core up / down lever 6 is pushed down (in the direction of raising the wick), the core up / down plate 10, which is linked to the core up / down lever 6 by an appropriate means, rotates downward (the pin 13 of the core up / down plate 10 is moved to the long hole 14). Down along the end of the elongated hole 14), the pin 13 is fitted into the locking portion 14a and the spring 1
Despite the urging force of 1, the core upper and lower plates 10 are locked at that position. Reference numeral 15 is a leaf spring attached to the lock plate 12, and 16 is a vibration extinguishing weight linked to the leaf spring 15 through a chain 17, which is erected on a pedestal 18 provided on the core upper and lower substrates 7. . When an earthquake occurs, the weight 16 swings to rotate the leaf spring 15, that is, the lock plate 12, via the chain 17. As a result, the pin 13 is disengaged from the locking portion 14a of the elongated hole 14, and the urging force of the spring 11 causes the upper and lower core plates 10 to rotate upward. At this time, the lead upper and lower plates 10 are linked to the lead up and down levers 6, so that the lead up and down levers 6 also rotate upward, and the wick 3 descends to extinguish the fire. At this time, the pin 13 that has returned to the upper position presses the leaf spring 15 to pull the chain 17 and restore the weight 16 that has fallen to its original state. An emergency fire extinguisher button 19 is formed integrally with the lock plate 12, and is adapted to rotate the lock plate 12 similarly to the weight 16.

Next, the fine adjustment mechanism 20, which is a feature of the present invention, will be described with reference to FIGS. First, 21 is a vertically movable rack, one end of which is linked to the core up / down lever 6 by an appropriate means. Reference numeral 22 denotes a support body, which is composed of a base body 22A and a lid body 22B as shown in FIG. 1 and has a shape that guides the side surface and front-back direction of the rack 21 and is planted in the base body 22A. Operating axis 2
3 is fitted into the hole 25 of the lid body 22b and integrated. The hole 25 is provided with at least one projection 25A as shown in FIG. 8 and forms a portion having a size 25a equal to or slightly smaller than the diameter 23a of the shaft 23. The diameter 25B of the hole 25 excluding the protrusion 25A is larger than the diameter 23A of the shaft 23. Also the base body 22a of the support body
A resistor (leaf spring) 24 for stabilizing the operation of the rack 21 is provided between the rack and the rack 21. Reference numeral 26 denotes a rotatable upper operation button, which has a bearing 27 for centering and a bearing portion 28 provided at a lower portion.
Is pivotally supported on the operation shaft 23, and is biased in a direction away from the rack 21 by an upper operation button spring 29 provided between the support shaft and the base body 22A. Reference numeral 30 denotes a rotatable lower operation button, which is pivotally supported on the operation shaft 23 by a bearing portion 32 having a core lowering bearing 31 and provided on an upper portion, and a lower portion provided between the support body and a base body 22A. It is urged in a direction away from the rack 21 by an operation button spring 33. Reference numeral 34 denotes a center-raising pinion, which is pivotally supported by a pinion shaft 35 on a center-raising bearing 27 of the upper operation button 26, and is urged toward the rack 21 by a pinion pushing spring 36 provided between the upper-operation button 26 and the center operation pin 26. There is. 37 is a core lowering pinion, which is pivotally supported by the pinion shaft 35 to the core lowering bearing 31 of the lower operation button 30, and is urged toward the rack 21 by the pinion pushing spring 36 provided between the lower operation button 30 and the lower operation button 30. There is. That is, the fine adjustment mechanism 20 includes a rack 21 and a support 22.
And the upper operation button 26, the core lifting pinion 34, and the pinion shaft 35.
And upper operation button unit 38 consisting of pinion push spring 36
And lower operation button 30, core lowering pinion 37 and pinion shaft 35
Lower operation button unit 39 consisting of and pinion push spring 36
The upper operation button spring 29 and the lower operation button spring 33 are integrally attached. Reference numeral 40 denotes an operation base body for mounting and fixing the integrated fine adjustment mechanism 20, which is integrally mounted on the upper and lower core substrates 7.

Next, the assembly of the fine adjustment mechanism 20 of the core lifting device of the oil combustor configured as described above will be described. First, the upper operation button unit 38, the bearing section 28 of the lower operation button unit 39,
32 is inserted into the operation shaft 23 planted in the base body 22A of the support body 22, and then the up / down operation button springs 29 and 33 are set at predetermined positions between the base body 22A and the up / down operation button units 38 and 39. Next, the rack 22 is placed on the guide portion of the base body 22A, and then the resistor 24 is sandwiched between the rack 22 and the support body 22A.
The lid body 22B is placed on the base body 22A and fixed by screwing or the like. At that time, the operation shaft 23 planted in the base body 22A is fitted and integrated with the hole 25 of the lid body 22B.
At least one protrusion 25A is provided and the shaft 23 has a diameter 2
3a, the diameter 25b excluding the protrusion 25A of the hole 25 is larger than the diameter 23a of the shaft 23.
3 The tip is fitted into the protrusion 25A of the hole 25 and is fixed,
The lid body 22B does not fall off before tightening the screw due to the reaction force of the resistor 24. Further, the insertion of the operation shaft 23 into the hole 25 does not require a large force because the fitting state portion is only the contact surface with the projection 22a. As described above, the workability is very good because the temporary adjustment can be performed easily and surely without using a jig or the like before tightening the screws when assembling the fine adjustment mechanism 20.

Next, the operation of the core lifting device for an oil combustor configured as described above will be described below.

First, when the lead up / down lever 6 is pushed down from the state before use in FIG. 2, the wick 3 is raised to the combustion position as shown in FIG. 3 and an ignition device (not shown) is provided via the ignition lever 9.
Is activated, and the wick 3 is ignited. And ignition lever 9
Returns to its original state. At this time, the rack 21 of the fine adjustment mechanism 20 linked to the core up / down lever 6 is also pushed down in the same manner,
It comes to face the core raising pinion 34 and the core lowering pinion 37. The core raising / ignition operation is completed as described above.

When the combustion starts, the amount of combustion can be adjusted by the vertical movement of the core up / down lever 6, and the adjustment of the amount of combustion by operating the fine adjustment mechanism 20 will be described with reference to FIGS. 5 to 7. . First, when the wick 3 is set to the combustion position, the rack 21 moves to the centering pinion as described above, as shown in FIG.
It is set at a position facing the core lowering pinion 37 and the core lowering pinion 37. When reducing the amount of combustion, the lower operation button 30 is operated in the direction of arrow Sa as shown in FIG. As a result, the core lowering pinion 37 pivotally supported by the lower operation button 30 engages with the rack 21 which is normally in a non-coupling state and rotates in the arrow D direction as it is to push down the rack 21 in the arrow E direction. Become.
As a result, the lead up-and-down lever 6 linked with the rack 21 is also pushed down in the direction of arrow E, so that the wick 3 is lowered. At this time, when the lower operation button 30 is pressed once, the core lowering pinion 37 has a dimensional relationship such that at least one tooth of the rack 21 is fed. When the core lowering pinion 37 finishes feeding one or more teeth of the rack 21, the lower operation button 30 is moved by the urging force of the lower operation button spring 33 provided between the support plate base body 22 and the lower operation button 30 in FIG. Returning to the original state shown in, the engagement between the core lowering pinion 37 and the rack 21 is disengaged. Further, the core lowering pinion 37 returns to the original state because the pinion pushing spring 36 is always biased in the direction of arrow G. By the above operation, the wick 3 can be lowered in small steps, and the combustion amount can be gradually reduced.

Next, when increasing the combustion amount, the upper operation button 26 may be operated. That is, as shown in FIG. 6, when the upper operation button 26 is operated in the arrow Sb direction, the centering pinion 34 engages with the rack 21 which is normally in the non-coupling state and rotates in the arrow H direction as it is. 21 will be pushed down in the direction of arrow J. As a result, the lead up-and-down lever 6 linked with the rack 21 is also pushed down in the direction of arrow J, so that the wick 3 is raised. At this time, as in the case of lowering the core, when the upper operation button 26 is pressed once, the center-up pinion 34 has a dimensional relationship such that at least one tooth of the rack 21 is fed. When the centering pinion 34 finishes feeding one or more teeth of the rack 21, the upper operation button 26 returns to the original state shown in FIG. 5 by the urging force of the upper operation button spring 29,
The engagement between the centering pinion 34 and the rack 21 is disengaged. Further, the center-raising pinion 34 returns to its original state because the pinion pushing spring 36 is constantly biased in the direction of arrow G.

When the combustion amount is further reduced or increased, the operating axis
23 The tip of the upper and lower operation buttons 26 and 30 is stable because the tip 25A of the hole 25 is fixed without rattling, and the upper and lower pinions 34 and 37 also stabilize the feed amount of the rack 21 for fine adjustment. Since the number of operating steps is stable, the movement amount of the wick 3 is stable.

FIG. 10 shows an example of an oil combustor using the core lifting device of this embodiment. 41 is a door attached to the operation base body 40, and 42 is an ignition knob attached to the tip of the ignition lever 9. , 43 are core up-down knobs attached to the tip of the core up-down lever 6. As the operation procedure of the user, first, open the door 41 and push down the ignition knob 42 and the core upper and lower knobs 43 inside the door 41 to ignite the wick 3, and when combustion starts, the core upper and lower knobs 43 or the upper operation button. The amount of combustion is adjusted by the 26 and the lower operation button 30.

Although the shape of the projecting portion of the hole is as shown in FIG. 8 in the above embodiment, the same effect can be obtained with the shapes as shown in FIGS. 9 (A), (B) and (C).

EFFECTS OF THE INVENTION As is clear from the above description of the embodiments, the core up / down device of the present invention uses the fine adjustment mechanism in addition to the core up / down mechanism so that the core can be moved up and down in small steps. After adjusting the core up and down for fire extinguishing and making a large amount of combustion adjustment, the fine adjustment mechanism can be used to adjust the amount of combustion in small increments, and the shaft supporting the operation button and the hole supporting the shaft can be simplified while simplifying the configuration. It is possible to eliminate the backlash, stabilize the number of fine adjustment steps, stabilize the movement amount of the wick, and improve the assembly workability of the fine adjustment mechanism.

[Brief description of drawings]

1 to 10 show a core lifting device for an oil combustor in an embodiment of the present invention, FIG. 1 is an exploded perspective view of a core lifting mechanism and a fine adjustment mechanism, and FIG. 2 is a core lifting mechanism before ignition. FIG. 3 is a side view of the core up-and-down mechanism after ignition, FIG. 4 is an exploded perspective view of the fine adjustment mechanism, and FIG. 5 is a cross-sectional side view of essential parts before operation of the fine adjustment mechanism, FIG. Is a side view of the cross-section of the main part when the core is raised,
The figure is a cross-sectional side view of the main part when the core is raised, FIG. 8 is an enlarged view showing the hole shape, and FIGS. 9 (A), (B), and (C) are enlarged views showing other examples of the hole shape. FIG. 10 is a perspective view of a main body of an oil stove incorporating an example product, and FIG. 11 is a perspective view showing a conventional example. 3 ... wick, 5 ... core up / down mechanism, 6 ... core up / down lever (core up / down body), 20 ... fine adjustment mechanism, 21 ... rack, 22 ... support, 24 ...
Resistor, 26 ... Upper operation button, 30 ... Lower operation button, 34 ... Core raising pinion, 37 ... Core lowering pinion.

Claims (1)

[Claims] 1. A vertically movable wick, a wick up-and-down mechanism having a wick up-and-down lever for moving the wick up and down, and a fine adjustment mechanism for driving the wick up and down mechanism in small steps. A vertically movable rack linked to the core up-and-down lever, a support for holding the rack in a vertically movable manner, and a pinion provided so as to move toward and away from the rack so as to drive the rack, A resistor is provided between the support and the rack, and an operating button for operating the pinion is provided. The support is inserted into the base and the shaft into which a shaft pivotally supporting the operating button is planted. A core lifting device for an oil combustor, which is composed of two parts of a lid body having a hole, and in which the hole of the lid body has a size larger than the diameter of the shaft of the base body and partly equal or smaller.