JP2586676B2 - Oil burner core vertical adjustment device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a core raising / lowering device for an oil-fired combustor that performs a core raising / lowering operation using a lever.

[Prior art] A lever type core elevating device has been put into practical use instead of a conventional dial type as a core elevating device of an oil combustor. Is provided with a thermal power adjustment button in another place to finely adjust the core height stepwise.

Further, as disclosed in Japanese Patent Application Laid-Open No. Hei 1-305208 according to the applicant's application, a drive lever for driving an operation lever is provided in a plurality, and the drive lever is selected to perform several steps of thermal power adjustment with one touch. ing.

[Problems to be Solved by the Invention] One of a plurality of drive levers that rotate around a support shaft is selected, and the drive unit of the drive lever is operated to rotate the operation lever, thereby indirectly For fine adjustment of the center height by moving the center vertical axis, a plurality of operation knobs corresponding to the drive levers are required.

For this reason, although the feature that a desired combustion amount can be directly selected is obtained, a plurality of operation knobs are arranged side by side, and the plurality of operation knobs are not located at the same position from the support shaft. The arm has different lengths, and there is a problem that the operating force is unbalanced, for example, when a short arm is operated, a strong force is applied.

[Means for Solving the Problems] The present invention proposes the following in order to solve the above problems. That is, an operation lever 2 for rotating the core vertical shaft 1
And a drive pin 4 attached to the operation lever 2 and a plurality of drive levers 6 that rotate around a support shaft 8. And a driving portion 6b for operating the driving lever 6 are provided. The driving portions 6b are arranged side by side while changing the dimension between the supporting shaft 8 and the driving portion 6b. The V-shaped notch 6a is formed in a different shape for each of the plurality of drive levers 6, and the V-shaped notch 6a of one selected drive lever 6 is
When pivoting toward, the end face of the V-shaped notch 6a
In the center vertical adjustment device that rotates the operation lever 2 through the second drive lever 5, the second drive lever 5 that rotates about the second support shaft 7 provided at a position different from the support shaft 8 while overlapping with the drive lever 6 The second drive lever 5 is provided with a second V-shaped notch 5a having a shape similar to that of the V-shaped notch 6a and a second drive portion 5b for operating the second drive lever 5; The dimensions of the drive section 6b and the dimensions of the second support shaft 7 and the second drive section 5b are made substantially the same, and the operation of the drive section 6b of the drive lever 6 and the second drive section 5b of the second drive lever 5 is performed. The force is set to be almost the same.

Further, an operation knob 10 for sliding operation from outside the frame and a second operation knob 9 are provided.
And the second operating knob 9 is linked to the second driving section 5b of the second driving lever 5, and the operating dimensions of the operating knob 10 and the second operating knob 9 are made substantially the same. The operation force and the operation distance of the knob 10 and the second operation knob 9 are almost the same.

Further, the support shaft 8 and the second support shaft 7 are attached to the bracket 11, and the drive lever 6 and the second drive lever 5 are overlapped and fitted to the support shaft 8 or the second support shaft 7, and the bracket 11 The second support lever 7 of the second drive lever 5 located on the side does not have a stopper formed thereon, the other support shaft 8 has a stopper 8a formed thereon, and the second drive lever 5 on the bracket 11 side is driven by the other drive. The structure is such that the lever 6 prevents falling off. Compared with the conventional structure, only the second support shaft 7 is added substantially without any significant change and the assembly can be easily performed.

[Operation] When one side of the operation lever 2 is pushed down, the center vertical axis 1 rotates in the center raising direction, and when one side of the operation lever 2 is pushed up, the center vertical axis 1 rotates in the center lowering direction. Can move the core up and down. When it is desired to adjust the thermal power during use of the oil combustor thus aligned, one of the plurality of operation knobs 10 is selected and pushed down, and the drive lever 6 is moved down about the support shaft 8 by the drive unit 6b which descends. The drive pin 4 is driven by the tapered portion of the V-shaped notch 6a of the drive lever 6
The operation lever 2 can be rotated in the center-down or center-up direction.

At this time, the V-shaped notch 6a changes the depth, shape and angle of the notch with respect to the drive pin 4 for each sheet. The position of the pin 4 is finely changed to allow fine adjustment of the core height.

In addition, by changing the dimension from the support shaft 8 to the drive unit 6b in order to operate the plurality of drive levers 6 independently,
The operation knobs 10 can be arranged in parallel, and the heating power can be switched directly by using the desired operation knobs 10 of strong, medium and weak.

According to the present invention, the second drive lever 5 that rotates about the second support shaft 7 is provided separately from the plurality of drive levers 6, so the second drive lever that is disposed at a position close to the support shaft 8 of the drive lever 6 is provided. Even with the second driving portion 5b of the lever 5, the dimension from the second support shaft 7 can be increased, so that the moving distance of the second driving portion 5b can be increased.

Also, the dimensions of the second support shaft 7 and the second drive unit 5b are different from those of the other drive units.
Since the dimensions are similar to those of the support shaft 8 and 6b, the operating force of the second drive unit 5b can be made almost the same as the other drive units 6b.

[Example] The configuration will be described below with reference to the drawings showing an example.
A vertical axis 16 for raising and lowering the core 12, an upper and lower arm 16 attached to the vertical axis 1 for the core, a core holding cylinder 15 provided outside the core 12, and the upper and lower arms 16 are rotated when the vertical axis 1 for the core is rotated. Engagement plate 17 of holding cylinder 15
Therefore, the wick 12 moves up and down while being held by the wick holding tube 15 to perform ignition, combustion amount adjustment, and fire extinguishing.

Reference numeral 2 denotes an operation lever for driving the core up / down shaft 1, reference numeral 3 denotes a core up / down knob provided on one side of the operation lever 2, reference numeral 13 denotes a core up / down device substrate for integrally forming the core up / down device. Numeral 3 moves up and down along a slide hole 14 provided in the core vertical device substrate 13, and rotates the operation lever 2 about the core vertical axis 1. Reference numeral 24 denotes a front panel of the frame of the oil combustor, reference numeral 25 denotes an operation door provided on the front panel 24, and a core upper / lower knob 3 denotes an operation door 25.
The operation door 25 is opened to perform a core up / down operation.

4 is a drive pin protrudingly mounted on the other side of the operation lever 2, 6 is a drive lever provided rotatably about a support shaft 8,
6a is a V-shaped notch facing the drive pin 4 of the operation lever 2 rotated to the center raising position, 6b is a drive section provided at an end of the drive lever 6 separated from the support shaft 8 by a predetermined distance, and 6c is a drive lever 6 The drive lever 6 is formed by stacking a plurality of drive levers. The shape of the V-shaped notch 6a constituting the drive lever 6, the length of the arm 6c, the drive unit The distance from the support shaft 8 of 6b is all different.

Reference numeral 10 denotes an operation knob mounted on the front panel 24 so as to be slidably movable up and down.A plurality of the operation knobs 10 are provided in cooperation with the drive unit 6b, and an arbitrary operation knob is provided.
When the user pushes down the button 10 from outside the frame, the corresponding drive section 6b of the drive lever 6 is pressed down.

For this reason, one drive lever 6 rotates about the support shaft 8 from the position of the dotted line to the position of the solid line as shown in FIG. 4, and the V-shaped notch 6a of the drive lever 6 faces the drive pin 4. When the drive lever 6 advances, the tapered portion of the V-shaped notch 6a comes into contact with the drive pin 4, and when the drive lever 6 further advances, the drive pin 4 moves in the center-down or center-up direction by the taper portion, and the operation lever 2 rotates. In addition, fine adjustment of the core height is possible. Therefore, since the shapes of the V-shaped notches 6a of the plurality of drive levers 6 are all different, fine adjustment of the center height can be performed by operating an arbitrary operation knob 10.

At this time, if the notch depth of the V-shaped notch 6a is made deeper, the drive lever 6 can be largely rotated, and the drive lever 4
Even if the length of the arm 6c is different, the sliding operation distance of the operation knob 10 can be made uniform. However, since the setting by this structure cannot cope with a large rotation of the drive lever 4, when the size of the arm 6c between the support shaft 8 and the drive portion 6b is short, the operation knob 10 can obtain a predetermined operation size. It is not possible, and the operating force at this time is very heavy.

The present invention solves this problem.
The second support shaft 5 provided at a different position from the second support lever 5 rotates around the second support shaft 7, and 5a is provided on the second drive lever 5 in a shape similar to the V-shaped notch 6a. A second V-shaped notch, 5b is a second drive portion of the second drive lever 5, 5c is a second arm extending from the second support shaft 7 to the second drive portion 5b, and the second drive lever 5 Is different only in the position of the drive lever 6
The second V-shaped notch 5a and the second driving portion 5b can be located near the V-shaped notch 6a and the driving portion 6b of the driving lever 6.

Therefore, the second drive unit 5b located on the support shaft 8 side of the drive unit 6b
However, as shown in FIG. 3, the size of the second arm 5c extending from the second support shaft 7 to the second driving portion 5b can be increased, and the dimensions of the arm 6c and the second arm 5c are substantially the same. The operation force of the drive lever 6 and the operation force of the second drive lever 5 can be set to be substantially the same.

Reference numeral 9 denotes a second operation knob arranged side by side with the operation knob 10 slidably mounted on the front panel 24, and a second drive unit which is linked when the second operation knob 9 is pressed down.
5b is depressed to rotate the second drive lever 5, and even if the second operation unit 9 is provided next to the operation knob 10, the support shaft 8
Since the dimensions of the arm 6c and the second arm 5c can be set to be substantially the same by providing the second support shaft 7 at a position different from the above, the operation distance of the second operation knob 9 can be made almost the same as the operation knob 10. It is.

Reference numeral 11 denotes a bracket for integrally holding the plurality of drive levers 6 and the second drive lever 5, and reference numeral 8a denotes a stopper for stopping the drive lever 6 fitted to the support shaft 8, and a bracket integrated with the core vertical device substrate 13. A support shaft 8 and a second support shaft 7 are attached to 11,
The drive lever 6 and the second drive lever 5 are held by the bracket by fitting to the support shaft 8 and the second support shaft 7.

Then, the second drive lever 5 fitted to the second support shaft 7 is arranged on the bracket 11 side, and the drive lever 6 fitted to the support shaft 8 by overlapping with the second drive lever 5 is provided. 6, the second drive lever 6 is prevented from falling off by the other drive lever 6 even if the second support lever 7 for the second drive lever 5 does not have a stopper. is there. Therefore, the structure of the second drive lever 5 is substantially the same as that of the drive lever 6, and the only difference from the conventional product is the presence or absence of the second support shaft 7, and does not significantly increase the cost. Things.

The lead raising and lowering device of the embodiment shown in the figure has a built-in automatic fire extinguishing mechanism, 18 is a fire extinguishing drive plate which is loosely fitted to the lead vertical shaft 1 and is rotatable, and 18a is the operation lever 2 and the fire extinguishing drive plate. 18
When the operation lever 2 is turned in the centering direction, the fire extinguishing drive plate 18 is also turned together.

19 is a return spring that urges the fire extinguishing drive plate 18 in the core lowering direction,
20 stops the fire extinguishing drive plate 18 against the force of the return spring 19
The fire extinguishing drive plate 18 which is rotated by the operation lever 2 is a locking portion for locking to the stop 21, and the locking portion 20 is locked to the stopper 21 while stopping the rotation while extending the return spring 19. The position where the rotation stops is the position of the maximum core height during combustion.

Numeral 22 denotes a seismic weight placed on a base 23. When the vibrating weight 22 falls and the stopper 21 is actuated when it detects vibration such as an earthquake or the fall of the oil combustor, the fire extinguishing drive plate 18 Since the locking part is released from the locking part 20 and the stopper 21,
The fire extinguishing drive plate 18 is forcibly rotated by the force of the return spring 19. At this time, the locking portion 18a of the fire extinguishing drive plate 18 rotates the operation lever 2, and the operation lever 2 rotates the core vertical shaft 1 in the core lowering direction to automatically extinguish the fire.

[Effects of the Invention] The present invention shows the above-described configuration and operation. A drive unit 6b is provided at an end of a plurality of drive levers 6 that rotate about a support shaft 8, and the drive unit 6b and the support shaft are provided. In the conventional structure in which a plurality of drive units 6b are arranged side by side by changing the size of the drive unit 8, the moving distance of the drive unit 6b provided near the support shaft 8 is shortened, and a strong operation force is required.

In the present invention, a plurality of drive levers 6 provided with a drive portion 6b are provided.
A second support shaft 7 is provided separately from a support shaft 8 serving as a rotation center of the second drive lever 5, and a second drive lever 5 that rotates about the second support shaft 5 a is provided. Since the dimensions from the second support shaft 7 to the second drive unit 5b and the dimensions from the support shaft 7 to the drive unit 6b are arranged approximately the same, the operating force is averaged and the unit can be moved with a light touch. It is.

Also, the support shaft 8 and the second support shaft are formed at different positions,
The dimensions of the second support shaft 7 and the second drive unit 5b are different from those of the support shaft 8 and the drive unit.
Since the size of the second V-shaped notch 5a was comparable to the size of the other V-shaped notch 6a, the operation knob 10 and the second operation The operation distance when performing the slide operation using the knob 9 becomes almost equal,
While operating with a light touch, the operating distance is almost the same, making it very easy to handle.

On the other hand, the provision of the second support shaft 7 with respect to the support shaft 8 complicates the structure and causes a cost increase.
Side, and the drive lever 6 is superimposed and mounted thereon. Therefore, in order to prevent the drive lever 6 and the second drive lever 7 from dropping off, it is only necessary to attach the retaining stopper 8c only to the support shaft 8,
Since it is only necessary to attach the second support shaft 7 without retaining to the bracket 11, there is no significant increase in cost, it can be implemented at low cost, and the assembling work is not required.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of the product of the present invention, and FIG.
FIG. 3 and FIG. 4 are front views showing the operating states of the parts, respectively. Reference numeral 1: vertical axis of the core, 2: operating lever, 3: vertical knob of the core 4, driving pin 5, second driving lever 5a, second V
Shape notch 5b 2nd drive part 6 Drive lever 6a V-shaped notch 6b Drive part 7 Second support shaft 8 Support shaft 8a Stop 9 … Second operation knob, 10… Operation knob, 11… Bracket

Claims (3)

(57) [Claims] An operating lever for rotating a core vertical shaft, a driving pin attached to the operating lever, and a plurality of driving levers for rotating about a support shaft are provided. The drive lever 6 is provided with a V-shaped notch 6a facing the drive pin 4 of the operation lever 2 rotated to the center raising position and a drive portion 6b for operating the drive lever 6, and a plurality of drive portions 6b are supported. The V-shaped notch 6a is formed in a different shape for each of the plurality of drive levers 6 while changing the dimension between the shaft 8 and the V-shaped notch 6a. In the center vertical adjustment device in which the end face of the V-shaped notch 6a rotates the operation lever 2 via the drive pin 4 when the 6a rotates toward the drive pin 4, the support shaft 8 is overlapped with the drive lever 6 and Is provided with a second drive lever 5 that rotates about a second support shaft 7 provided at a different position, 5 is provided with a second V-shaped notch 5a having a shape similar to that of the V-shaped notch 6a, and a second drive portion 5b for operating the second drive lever 5, and the dimensions of the support shaft 8 and the drive portion 6b, The dimensions of the two support shafts 7 and the second driving portion 5b are made substantially the same, and the driving portion 6b of the driving lever 6 and the second driving portion of the second driving lever 5 are formed.
An oil-fired core vertical adjustment device characterized in that the operation force with 5b is set to be almost the same. 2. An operation knob 10 for performing a slide operation from outside the frame.
And a second operation knob 9. The operation knob 10 is linked to the drive 6 b of the drive lever 6, and the second operation knob 9 is linked to the second drive 5 b of the second drive lever 5. 2. The apparatus according to claim 1, wherein the operation dimensions of the second operation knob 9 are substantially the same. 3. The support shaft 8 and the second support shaft 7 are attached to the bracket 11, and the drive lever 6 and the second drive lever 5 are overlapped and fitted to the support shaft 8 or the second support shaft 7. , Bracket 11
The second support lever 7 of the second drive lever 5 located on the side does not have a stopper formed thereon, the other support shaft 8 has a stopper 8a formed thereon, and the second drive lever 5 on the bracket 11 side is driven by the other drive. 3. The apparatus according to claim 1, wherein the lever is prevented from falling off.