JPH0749842B2 - 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, the wick is moved up and down to burn and extinguish, and the vertical movement of the wick moves the pin 72 of the wick 71 to the upper and lower arms of the wick as shown in FIG. The core up / down lever 76 of the core up / down mechanism 75 linked with the core up / down arm 73 and the up / down core shaft 74 is moved up and down. Further, recently, as shown in FIG. 9, a rack 77 attached to the core up / down lever 76 and a pinion 79 incorporated in the operation base 78 drive the core up / down lever 76 in small steps within the combustion range to adjust the heat power. You can see things that you can do. Reference numeral 80 in the drawing denotes a slide shaft that holds the pinion 79 rotatably and slides back and forth with respect to the operation base 78, and 81
Is a fine adjustment knob for driving the pinion 79 via the slide shaft 80, and 82 is the position of the pinion 79 and the rack 77 is adjusted to the normal dimension in the up / down and front / rear directions, and then the rack 77 is integrated with the core up / down lever 76. A fixing screw, 83 is a rack shaft for supporting the rack 77 coaxially with the core up-down lever 76.

However, in the oil combustor configured as described above, the rack 77 and the pinion 79 are incorporated in separate blocks, so that the rack 77 and the pinion 79 are in a normal position in the completed state. Therefore, there was a problem that the rack 77 had to be adjusted up and down and back and forth. Further, since the rack 77 and the core up-down lever 76 are arranged in parallel, there is a problem that bending is likely to occur and loss is likely to occur in the transmission of force.

Further, there is a problem that foreign matter is apt to be mixed and adhered to the movable parts such as the rack 77 and the pinion 79, and it is difficult to attach the cover for preventing the foreign matter.

The present invention has been made in view of the above points, and it is an object of the present invention to allow a normal dimension between the pinion and the rack without adjustment during assembly and to reduce force transmission loss.

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 wick, a vertically movable rack connected to the core up / down lever, a support for holding the rack vertically movable, and a contact with the rack. It consists of a pinion that is detachable and rotatable and that drives the rack in small increments, and an operation button that operates this pinion. The pinion is held by the operation button and the operation button is rotatable on the support. The rack, the pinion, and the operation button are integrally attached to the support body.

Effect of the Invention With the above-described configuration, the present invention allows the combustion amount to be adjusted by either the core up / down lever or the operation button for fine adjustment, and the positional relationship between the pinion and the rack can be set without adjustment during assembly, and the force The transmission loss can be reduced.

EXAMPLE An example will be described below with reference to FIGS. 1 to 7. 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 provided vertically between the two
Is a combustion cylinder 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 an on-core lever that moves the wick 3 up and down, and one end of the wick 3 is linked to the wick 3 through an appropriate linking means as described in the conventional example. 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. 9 is the above-mentioned core up-down lever 6
At the same time, an ignition lever pivotally supported by the pin 8 on the upper and lower substrates is used to operate an ignition device (not shown) to ignite the wick 3 by its one end 9a. It is designed to return to the position. Ten
Like the ignition lever 9, is a core upper / lower plate pivotally supported on the core upper / lower base plate by a pin 8 together with the core upper / lower lever 6, and is linked to the core upper / lower lever 6 by an appropriate means. Reference numeral 11 denotes a spring for urging the core upper and lower plates 10 toward the upper position (the wick lowering position), which is hooked between the end 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. The lock plate 12 is formed with a long hole 14 into which a pin 13 planted in the upper and lower core plates 10 is inserted, and a locking portion 14a is formed at the terminal end of the long hole 14 to lock the pin 13. It is like this. 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). When it descends along and comes to the end of the elongated hole 14), the pin 13 fits into the locking portion 14a and locks the core upper and lower plates 10 at that position despite the biasing force of the spring 11. Become. 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. . The weight 16 slides in the event of an earthquake to rotate the leaf spring 15, that is, the lock plate 12, via the chain 17. As a result, from the locking portion 14a of the long hole 14 to the pin 13
The core upper and lower plates 10 rotate upward due to the urging force of the spring 11. At this time, the wick upper / lower plate 10 is linked to the wick up / down lever 6, so that the wick up / down lever 6 also rotates upward, and the wick 3 is lowered to extinguish the fire. At this time, the pin 13 returned to the upper position presses the leaf spring 15 and pulls the chain 17,
Return the falling weight 16 to its original state. An emergency fire extinguishing 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. 1, 4, 5, and 6. 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 is a support body, which is composed of a base body 22A and a lid body 22B as shown in FIG.
It is fitted and integrated with. 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. The operation button spring 33 urges the operation button spring 33 away from the rack 21. Reference numeral 34 is a center-raising pinion, which is pivotally supported by a pinion shaft 35 on a center-lowering 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. 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 33, 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.

Reference numeral 40 denotes an operation base body to which the integrated fine adjustment mechanism 20 is attached and fixed, and is integrally attached to the core upper and lower substrate 7.

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 shown in FIG. 3 rises to the combustion position and an ignition device (not shown) is operated via the ignition lever 9, The wick 3 is ignited. Then, the ignition lever 9 returns to the original state. At this time, the rack 21 of the fine adjustment mechanism 20 linked to the lead up / down lever 6 is also pushed down to face the lead-up pinion 34 and the lead-down 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. 4 to 6. . First, when the wick 3 is set to the combustion position, the rack 21 is set to a position facing the core raising pinion 34 and the core lowering pinion 37 as shown in FIG. When the lower operation button 30 is operated in the direction of the arrow Sa as shown in FIG. 6 to reduce the combustion amount, the core lowering pinion 37 pivotally supported by the lower operation button 30 is normally in the non-coupling state of the rack 21.
, And the rack 21 is pushed up in the direction of arrow E by rotating in the direction of arrow D. As a result, the lead up / down lever 6 linked with the rack 21 is also pushed up in the direction of the 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 is set to have a dimensional relationship such that at least one tooth of the rack 21 is fed. The core down pinion 37 is a rack
When one or more teeth 21 have been fed, the lower operation button 30 is in the original state shown in FIG. 4 by the urging force of the lower operation button spring 33 provided between the base body 22A of the support and the lower operation button 30. Then, the engagement between the core lowering pinion 37 and the rack 21 is released. Further, the core lowering pinion 37 returns to the original state because the pinion pushing spring 36 is constantly biased in the direction of the 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. 5, when the upper operation button 26 is operated in the direction of the arrow Sb, the centering pinion 34
Normally engages with the rack 21 in the non-coupling state, rotates in the direction of arrow H as it is, and pushes down the rack 21 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 core raising pinion 34 is set to have a dimensional relationship such that at least one tooth of the rack 21 is fed. Rack-up pinion 34 rack 21
When one or more teeth have been fed, the upper operation button 26 is returned to the original state shown in FIG. 4 by the urging force of the upper operation button spring 29 provided between the support base body 22A and the upper operation button 26. Returning, the engagement between the center raising 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.

As described above, in this combustor, the amount of combustion can be adjusted by the core up / down mechanism 5 and the amount of combustion by the fine adjustment mechanism 20, and the rack 21 of the fine adjustment mechanism 20 linked to the core up / down mechanism 5 can be used. Since the lead-up pinion 34 and the lead-down pinion 37 are normally in a non-linked state, the wick 3 can be freely moved by the lead-up / down mechanism 5.
You can extinguish the fire by lowering.

Further, the fine adjustment mechanism 20 of this core up-and-down device, the rack 21,
A support 22 composed of a base 22A and a lid 22B,
An upper operation button unit 38 including an upper operation button 26, a center-raising pinion 34, a pinion shaft 35, and a pinion push spring 36,
A lower operation button unit 39 including a lower operation button 30, a core lowering pinion 37, a pinion shaft 35, and a pinion pressing spring 36,
The upper operation button spring 29 and the lower operation button spring 33 are integrally attached. Therefore, the fine adjustment mechanism
The 20 parts that play an important role in the operation are assembled in a very precise positional relationship without adjustment, and the power transmission loss due to assembly variations can be reduced. Moreover, since the meshing portion between the pinions 34 and 37 and the rack 21, that is, the drive portion is composed of the base body 22 and the lid body 24 of the support body, it is possible to prevent foreign matter from admixing and adhering to the drive portion.

Further, in this embodiment, the rack 21 that is set so as to face the core-raising pinion 34 and the core-lowering pinion 37 is not the entire region of the core upper and lower stroks, but a part thereof, that is, within the range where combustion is normally maintained, for example, Exhaust gas characteristics (CO / CO ₂ ) are JIS
The length is set only within the range that can be accommodated within the standard. That is, the lowermost teeth 21a of the rack 21 are positioned such that the core lowering pinion 37 cannot feed the teeth of the rack 21 below the height at which the wick 3 can normally burn. Similarly, the position of the uppermost tooth 21b of the rack 21 should be higher than the height at which the wick 3 can perform normal combustion.
Is in a position where the teeth of the rack 21 cannot be fed.
Therefore, when the operation of the upper operation button 26 and the lower operation button 30 is repeated several times and the core raising pinion 34 and the core lowering pinion 37 send the lowermost tooth 21a or the uppermost tooth 21b, the wick 3 is moved up and down further. It is not possible to do so, and the combustion amount can be finely adjusted with confidence.

FIG. 7 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.

In the above-described embodiment, the operation button is described as the upper operation button and the lower operation button as separate parts, but the same effect can be obtained even if these are integrated.

EFFECTS OF THE INVENTION As is apparent from the description of the embodiments above, 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 top and bottom of the core for fire extinguishing and performing a large amount of combustion adjustment, the fine adjustment mechanism can be used to adjust the combustion amount in small increments, and the integration of the fine adjustment mechanism facilitates assembly and improves accuracy. Since the transmission loss of force is reduced and the foreign matter can be easily prevented from adhering to the drive portion, the reliability is extremely high.

[Brief description of drawings]

1 to 7 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 a cross-sectional view of the main part before the operation of the fine adjustment mechanism, and FIG. 5 is a cross-sectional side view of the main part when the core is raised. Fig. 6 is a cross-sectional side view of the main part when the core is lowered,
FIG. 8 is a perspective view of the main body of the oil stove of the embodiment, FIG. 8 is a sectional view showing a conventional example, and FIG. 9 is a perspective view showing another conventional example. 3 ... wick, 5 ... lead up / down mechanism, 6 ... lead up / down lever,
20 ... Fine adjustment mechanism, 21 ... Rack, 22 ... Support, 26 ...
… Up operation button, 30 …… Down operation button, 34 …… Centering pinion, 37 …… Centering 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, An operation button for operating the pinion, the pinion is held by the operation button, and the operation button is rotatably attached to the support, and the rack, the pinion, and the operation button are integrally attached to the support. Combustor core lifting device.