JPH10141665A - Gas amount regulating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas amount regulating device capable of contriving the reduction of number of parts, working process as well as working labor and, simultaneously, permitting light and sure operation. SOLUTION: In a gas amount regulating device for regulating the amount of gas by operating a heating power regulating lever 5, supported by a mounting base plate 7 through bearing, to advance and retreat a needle valve, a supporting shaft 9, provided on the heating power regulating lever 5 itself, is fitted into a shaft hole 8, provided on the mounting base plate 7 to support the heating power regulating lever 5 pivotally by the mounting base plate 7. Further, engaging and supporting pieces 12, 13, provided on the heating power regulating lever 5, are fitted slidably into engaging and supporting grooves 10, 11, provided on the mounting base plate 7, to support the heating power regulating lever 5 by the mounting base plate 7 and, further, a rotation precluding piece 14 provided on the mounting base plate 7 is hooked by a hooking piece 15 provided on the heating power regulating lever 5, to restrict the using pivotal range of the heating power regulating lever 5 whereby the mounting base plate 7 and the heating power regulating lever 5 are connected so as not to be separated from each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas amount adjusting device, and more particularly to a gas amount adjusting device for operating a heat adjusting lever to move a needle valve to control the heat of a burner in a table stove or the like.

[0002]

2. Description of the Related Art As shown in FIGS. 10 to 12, for example, this kind of conventional gas amount adjusting device is fixed to a valve shaft 2 'of a needle valve mounted on a valve body 1'. A thermal power control lever 5 'having an engagement groove 4' for engaging the operating pin 3 'to rotate the needle valve;
Has a slanted guide groove 6 'for slidably engaging and moving the needle valve by rotating the heating power control lever 5', and a mounting base plate 7 'mounted and fixed to the valve body 1'.
By operating the heating power adjustment lever 5 'pivotally supported by the mounting base plate 7' to move the needle valve back and forth, the amount of gas to the burner is adjusted and the heating power of the burner is controlled.

[0003] In the gas amount adjusting device having the above-described structure, the pivotal portion of the heating power adjusting lever 5 'with respect to the mounting base plate 7' is generally pivotally supported by a caulking pin 8 'or an equivalent screw (Fig. 10). And caulking pin 8 '
In some cases, a leaf spring 9 'is interposed between the head and the mounting base plate 7' to prevent the thermal power control lever 5 'from rattling against the mounting base plate 7' (see FIG. 12).

[0004]

However, the pivot portion in the above-mentioned prior art pivotally supports the heat adjusting lever 5 'on the mounting base plate 7' using a caulking pin 8 'or an equivalent screw. The caulking process or the like requires not only a lot of labor and labor, but also requires parts such as the caulking pins 8 'or equivalent screws, so that the number of parts also increases. Therefore, there is a problem that the cost is increased due to poor work efficiency coupled with an increase in the work process and the number of parts.

[0005] The gas amount adjusting device of the present invention solves the above-mentioned problems, reduces the number of parts, reduces the number of work steps, and reduces the work labor, thereby enabling low-cost, light, and reliable operation. It is an object to provide a gas amount adjusting device.

[0006]

According to a first aspect of the present invention, there is provided a gas amount adjusting device for operating a heat adjusting lever pivotally supported on a mounting base plate to advance and retreat a needle valve. In the gas amount adjusting device for adjusting the, the joint between the mounting base plate and the heat control lever, pivot means formed by processing the mounting base plate and the heat control lever itself,
It is characterized in that it comprises a support means for supporting the heating power adjustment lever on the mounting base plate, and coupling means for connecting the mounting base plate and the heating power adjustment lever so as not to be separated. In the first gas amount adjusting device of the present invention having the above-described structure, the heat adjusting lever is pivotally supported by the supporting means formed by processing the mounting plate and the heat adjusting lever itself. It is not necessary to use an extra caulking pin or an equivalent screw as in the prior art, and the heating power adjusting lever is securely supported by the supporting means with respect to the mounting base plate. Are joined so as not to separate.

According to a second gas amount adjusting device of the present invention for solving the above-mentioned problems, a pivot means of the first gas amount adjusting device is formed at one of a joint portion between a mounting base plate and a thermal power adjusting lever. It is characterized in that the support shaft formed on the other side is rotatably fitted in the formed shaft hole, and the heating power adjustment lever can be rotated around the pivot portion as a fulcrum. The second gas amount adjusting device of the present invention having the above-described configuration is, for example,
If the support shaft provided substantially at the center of the joint of the thermal power adjustment lever is freely rotatably fitted to the shaft hole drilled at substantially the center of the joint of the mounting base plate, the thermal power adjustment lever can be pivotally supported on the mounting base plate. .

According to a third gas amount adjusting device of the present invention for solving the above-mentioned problems, the support means of the first gas amount adjusting device is formed at one of a joint portion between a mounting plate and a thermal power adjusting lever. And the engaging support piece formed on the other side is slidably fitted in the engaging supporting groove, and the heating power adjusting lever is supported on the mounting base plate in the use rotation range of the heating power adjusting lever. . The third gas amount adjusting device of the present invention having the above-described configuration is, for example, an engagement support piece projecting from both sides of the joint of the thermal power adjustment lever in an engagement support groove formed on both sides of the joint of the mounting base plate. Is slidably fitted to the mounting base plate so that the heating power adjustment lever is supported in the range of its use and rotation.

According to a fourth aspect of the present invention, there is provided a fourth gas amount adjusting device, wherein the connecting means of the first gas amount adjusting device is provided with a rotation preventing member formed on one of the mounting base plate and the heat adjusting lever. The hook piece formed on the other side is hooked on the other side, so that the use rotation range of the heating power adjustment lever is restricted and the engagement of the supporting means is maintained so that the mounting base plate and the heating power adjustment lever are not separated from each other. Characterized in that According to the fourth gas amount adjusting device of the present invention having the above-mentioned configuration, for example, the hooking piece formed on the heating power adjusting lever is hooked on the rotation preventing piece formed on the mounting base plate, and the rotation of the heating power adjusting lever is used. Since the engagement of the support means is maintained by restricting the range, the mounting base plate and the heat control lever are connected by the support means and do not separate.

According to a fifth aspect of the present invention, there is provided a gas amount adjusting apparatus according to the first to fourth aspects, wherein the joint between the mounting plate and the heat adjusting lever does not use the heat adjusting lever. At this position, a support shaft is fitted and joined to the shaft hole, and the heating power adjustment lever is pivotally displaced to the use position, and the engagement support piece is engaged with the engagement support groove to support the heating power adjustment lever on the mounting base plate. At least, the hook piece is deformed so as to be hooked on the rotation preventing piece at the use position, and the mounting base plate and the heat control lever are assembled. In the fifth gas amount adjusting device of the present invention having the above-described configuration, for example, the heating power adjustment lever is fitted in the shaft hole formed in the mounting base plate at the non-use position, and then the heating power adjustment lever is rotated to the use position. When displaced, the engaging support piece is engaged with the engaging support groove, the heating power adjusting lever is supported on the mounting base plate, and the hooking piece is deformed in this use position to be hooked on the rotation preventing piece. The mounting lever and the thermal power control lever are assembled.

According to a sixth aspect of the present invention, there is provided a gas amount adjusting device according to any one of the first to fifth gas amount adjusting devices, wherein one of the joints between the mounting plate and the thermal power control lever has a frictional resistance. It is characterized in that it is provided with a ridge having both reduction and rattling prevention. In the sixth gas amount adjusting device of the present invention having the above-described configuration, for example, if a convex ridge is formed around the shaft hole of the mounting base plate, the turning operation of the heating power adjusting lever can be performed lightly and accurately with the convex ridge. Can do it.

According to a seventh aspect of the present invention, there is provided a gas amount adjusting device according to the first to fifth aspects, wherein the buffer member prevents rattling at a joint portion between the mounting base plate and the thermal power adjusting lever. Is interposed. In the seventh gas amount adjusting device of the present invention having the above-mentioned configuration, the backlash of the heat adjusting lever is absorbed by the buffer member interposed at the joint between the mounting base plate and the heat adjusting lever,
The rotating operation of the heating power control lever can be always performed reliably.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION In the gas amount adjusting device of the present invention,
For example, as shown in the drawings corresponding to the embodiment, an engagement groove for engaging an operating pin 3 fixed to a valve shaft 2 of a needle valve provided on a valve body 1 to rotate the needle valve. 4 and the operating pin 3
Has a slanted guide groove 6 which slidably engages and moves the needle valve forward and backward by a rotation operation of the heating power adjusting lever 5,
A mounting base plate 7 mounted and fixed to the valve body 1 is operated, and the amount of gas to the burner is adjusted by operating the heating power control lever 5 pivotally supported by the mounting base plate 7 to advance and retract the needle valve. In the gas amount control device that controls the thermal power of

A pivot portion of the heating power adjusting lever 5 with respect to the mounting base plate 7 is provided in a shaft hole 8 formed substantially at the center of the joining portion 7a of the mounting base plate 7 at substantially the center of the joining portion 5a of the heating power adjusting lever 5. The support shaft 9 is rotatably fitted to the mounting base plate 7 so that the heating power adjusting lever 5 can be pivotally supported by a shaft hole 8 and a support shaft 9 formed by processing itself.

Further, the support of the heating power adjusting lever 5 with respect to the mounting base plate 7 is supported by engaging support grooves 10 and 11 formed on both sides of the joining portion 7a of the mounting base plate 7 on both sides of the joining portion 5a of the heating power adjusting lever 5. The engagement support pieces 12 and 13 protruding from each other are slidably fitted so that the heating power adjustment lever 5 is supported on the mounting base plate 7 in the range of its use rotation.

Further, the mounting base plate 7 and the heating power adjustment lever 5 are configured such that a hook piece 15 formed on the heating power adjustment lever 5 is hooked on a rotation preventing piece 14 formed on the mounting base plate 7, and By restricting the use rotation range of the lock 5, the engagement between the engagement support grooves 10, 11 and the engagement support pieces 12, 13 is maintained, and the mounting base plate 7 and the thermal power adjustment lever 5 are separated. I try not to.

Further, the pivoting means, the supporting means, and the coupling means can be fitted in the shaft hole 8 of the mounting base plate 7 with the support shaft 9 of the heating power adjusting lever 5 at a position where the heating power adjusting lever 5 is not used. After the support shaft 9 is fitted into the hole 8, when the heating power adjustment lever 5 is rotated to the use position, the engagement support grooves 12 of the mounting base plate 7, the engagement support pieces 12 of the heating power adjustment lever 5, 13 is engaged, and the hooking piece 15 is bent and deformed so as to be hooked on the rotation preventing piece 14 in the use position, so that the mounting base plate 7 and the heat adjusting lever 5 can be integrally assembled. ing.

Further, a ridge 16 is formed around the shaft hole 8 of the mounting base plate 7 at the junction between the mounting base plate 7 and the heating power control lever 5, or the mounting base plate 7 and the heating power control lever 5 A buffer member is interposed between the joints 7a and 5a around the pivots so that the heat control lever can be operated lightly and securely.

Although an example of the embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and it goes without saying that the present invention can be embodied in various forms without departing from the gist of the present invention. .

In order to further clarify the configuration, operation and embodiment of the present invention described above, an embodiment specifically showing the gas amount adjusting device of the present invention will be described below with reference to the drawings.

[0021]

1 to 9 show a gas amount adjusting device according to an embodiment of the present invention. The gas amount adjusting device includes a needle valve (not shown) mounted on a valve body 1. FIG. )
A heating power adjustment lever 5 having an engagement groove 4 for engaging an operation pin 3 fixed to the valve shaft 2 to rotate the needle valve, and a heating power adjustment lever 5 engaging the operation pin 3 slidably. And a mounting base plate 7 mounted and fixed to the valve body 1 and operating the heating power control lever 5 pivotally supported by the mounting base plate 7. By moving the needle valve back and forth, the amount of gas to the burner can be adjusted, and the thermal power of the burner can be continuously controlled.

In the embodiment shown in FIGS. 1 and 2, the burner is extinguished because the amount of gas is rapidly reduced when the amount of gas is reduced from the "strong" to "weak" by the heating power control lever 5. Equipped with a safety device A to prevent
The embodiment shown in FIG. 5 and FIGS. 7 to 8 shows one without the above-mentioned safety device.

Therefore, as shown in FIGS. 1 and 2, the safety device A uses a torsion spring 20 to lock the distal end locking piece 19 of the operating lever 18 pivotally supported at the base end of the heating power adjusting lever 5. Even if the operation lever 18 is moved from “strong” to “weak” with the operating lever 18 kept as it is, it is urged to be locked to the base locking step 21 provided on the mounting base plate 7. In the middle (for example, at the position of substantially “medium”), the locking piece 1 of the heating power adjusting lever 5 is attached to the locking step 21 of the mounting base plate 7.
When the operation lever 18 is lifted upward against the torsion spring 20, the locking piece 19 is disengaged from the locking step portion 21 to move to a position where the thermal power is "weak". It has a structure that can be moved.

In the embodiment shown in FIGS. 1 and 2,
Reference numeral 2 denotes a return lever. When the ignition operation is performed when the heating power adjustment lever 5 is at the position where the heating power is "weak", the lower end of the return lever 22 is pushed by the operating piece 23 interlocked with the ignition operation button, and the tip of the heating power adjustment lever 5 is pressed. Then, the pushing piece 24 is pushed to move the heating power adjusting lever 5 to, for example, a position where the heating power is "medium" so that the ignition can be performed with the gas amount of the heating power "medium" to achieve safe ignition. This return lever 22 is pivotally mounted on the valve body 1.

In the embodiment shown in FIGS. 1 to 5, the pivoting portion of the heating power adjusting lever 5 with respect to the mounting base plate 7 is provided in a shaft hole 8 formed substantially at the center of the joint 7a of the mounting base plate 7. The pivotal support of the heating power control lever 5 with respect to the mounting base plate 7 is achieved by simply rotatably fitting a support shaft 9 integrally formed substantially at the center of the joint 5a of the joint 5, as shown in FIG. In this embodiment, the shaft hole 8 and the support shaft are provided in reverse.
The support shaft 9 integrally formed substantially at the center of the joint portion 7a of the mounting base plate 7 is freely rotatably fitted into the shaft hole 8 formed at the substantially center of the joint portion 5a of the thermal power control lever 5. On the other hand, the structure is such that the pivoting of the heating power adjusting lever 5 can be performed. In addition, as the support shaft 9, it is preferable to form the short cylindrical support shaft 9 integrally with the mounting base plate 7 or the joint 7a or 5a of the thermal power control lever 5 as in the embodiment.

The heating power control lever 5 is
In the embodiment, the engaging support pieces 12 and 13 projecting from both sides of the joint 5a of the thermal power control lever 5 are engaged with the engaging support grooves 10 and 11 formed on both sides of the joint 7a of the mounting base plate 7 in the embodiment. The structure is such that it is supported in the range of use and rotation of the heating power adjustment lever 5 simply by being slidably fitted. But,
Although not shown, contrary to the above embodiment, an engaging support piece is provided on the mounting base plate side, and an engaging support groove is provided on the fire power adjusting lever side, so that the heating power adjusting lever 5 can be used with respect to the mounting base plate 7 in the use rotation range. May be supported.

In the embodiment, the mounting plate 7 and the heat control lever 5 are connected by a hook 15 integrally formed with the heat control lever 5 on the rotation preventing piece 14 formed integrally with the mount plate 7 in the embodiment. By restricting the range of use of the heating power adjusting lever 5, the engagement support grooves 10, 11 and the engagement support piece 1 are restricted.
The mounting base plate 7 and the thermal power control lever 5 are connected so as not to separate from each other while the engagement with the base plates 2 and 13 is maintained. However, although not shown, contrary to the above embodiment, a hooking piece is provided on the mounting base plate side, and a rotation preventing piece is provided on the heating power adjustment lever side so that the mounting base plate 7 and the heating power adjustment lever 5 are not separated. Good.

The pivoting means, the supporting means, and the connecting means at the joints 7a, 5a between the mounting base plate 7 and the thermal power control lever 5 are assembled, for example, in a procedure as shown in FIGS. I am doing it. That is, since the mounting base plate 7 and the heating power control lever 5 are turned upside down, the two joints 7a and 5a can be overlapped with the mounting base plate 7 at the non-use position a of the heating power control lever 5. At the position a, the support shaft 9 of the joint 5a of the thermal power control lever 5 is fitted into the shaft hole 8 of the joint 7a of the mounting base plate 7, and both joints 7a and 5a are overlapped (see the state of FIG. 7). In this non-use position a, the engagement support piece 1
2, 13 and the undeformed hook 15 are in a position where they do not interfere with the polymerization.

When the heating power adjustment lever 5 is pivotally displaced to the use position cd after the fitting of the pivot portion, the engagement supporting pieces 12 and 13 of the heating power adjustment lever 5 are engaged with the engagement support grooves 10 of the mounting base plate 7. , 11 and the hook piece 15 of the heating power control lever 5 is positioned on the rotation preventing piece 14 of the mounting base plate 7. Then, the hooking piece 15 is bent approximately 90 degrees toward the rotation preventing piece 14 side with the heating power adjusting lever 5 set to, for example, a substantially middle position b of the use position cd (see the state of FIG. 8).

Engagement support piece 1 at use position cd
Engagement of hooks 2 and 13 with engagement support grooves 10 and 11 and hook 1
5, the heating power control lever 5 moves the engagement support pieces 12 and 13 and the engagement support grooves 10 and 1 with respect to the mounting base plate 7.
1, the mounting base plate 7 and the heating power adjustment lever 5 are hooked by the hooking piece 15 on the rotation preventing piece 14, thereby restricting the use rotation range of the heating power adjustment lever 5.
The mounting base plate 7 and the thermal power control lever 5 are coupled so as not to be separated while the engagement between the engagement support grooves 10 and 11 and the engagement support grooves 10 and 11 is maintained (see the state of FIG. 9).

Further, a convex ridge 16 having an arc-shaped cross section is integrally formed around the shaft hole 8 of the joint 7a of the mounting base plate 7, and the contact with the joint 5a of the thermal power control lever 5 becomes a line contact. In this way, the frictional resistance is reduced. Then, the thermal power control lever 5 is lightly and reliably operated by interposing a buffer member 17 such as a leaf spring around a pivotal support portion between the mounting base plate 7 and the joints 7a and 5a of the thermal power control lever 5. It is possible to prevent the thermal power control lever 5 from rattling.

[0032]

The gas amount adjusting device of the present invention is embodied in the form described above, and has the following effects.

In the first gas amount adjusting device of the present invention, since the mounting base plate and the heat adjusting lever are pivotally supported by the pivotal means formed by processing the same, the caulking pin or the equivalent is conventionally used. Since there is no need to use extra parts such as screws, it is possible to reduce the number of parts, the number of work steps, and the work labor. Therefore, the gas amount adjusting device can be provided at low cost. Further, the heating power adjusting lever is securely supported by the supporting means with respect to the mounting base plate, and the mounting base plate and the heating power adjusting lever are connected so as not to be separated by the connecting means, so that the operation can be performed reliably. Instead, it is convenient for handling during conversion work.

According to the second gas amount adjusting device of the present invention, the pivot means of the first gas amount adjusting device simply fits the support shaft into the shaft hole provided in the mounting base plate and the thermal power control lever itself. Therefore, the effect of the first invention can be easily realized, and the assembling can be easily performed.

According to a third gas amount adjusting device of the present invention, the support means of the first gas amount adjusting device displaces the heating power adjusting lever after the engaging support piece is pivotally supported on the engaging supporting groove. Since the slide lever is merely fitted so as to be slidable, the effect of the first invention can be easily realized, and the firepower control lever can be stably supported on the mounting base plate.

In a fourth gas amount adjusting device according to the present invention, the connecting means of the first gas amount adjusting device restricts the use rotation range of the heating power adjusting lever by the hooking piece being hooked on the rotation preventing piece. Thus, the engagement of the support means of the third invention is maintained, so that the effect of the first invention can be easily realized, and the deformation of the hooking piece at the time of assembly can be simplified by simply bending. Can be performed.

According to the fifth gas amount adjusting device of the present invention, the pivoting means, supporting means and connecting means of the first to fourth gas amount adjusting devices can be easily assembled. The effects of the inventions 1 to 4 can be easily realized, and in particular, the assembling work is simple, so that it can be efficiently performed.

According to a sixth gas amount adjusting device of the present invention, in the first to fifth gas amount adjusting devices, the frictional resistance of the heating power control lever with respect to the mounting base plate is reduced, and the seventh gas amount adjusting device of the present invention is provided. The adjusting device allows the operation of the mounting base plate and the heating power adjusting lever to be constantly and lightly and reliably performed, so that the effects of the first to fifth aspects can be easily realized.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of a gas amount adjusting device according to the present invention.

FIG. 2 is a plan view of only a main part thereof.

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is a cross-sectional view in a case where a buffer member is interposed at a joint between the mounting base plate and the thermal power control lever.

FIG. 5 is a perspective view showing the mounting base plate and the thermal power control lever separately.

FIG. 6 is a sectional view of only a main part when a shaft hole and a support shaft are provided in reverse.

FIG. 7 is a plan view showing a state in which the heat control lever is superimposed at an unused position in a procedure of assembling the mounting base plate and the heat control lever upside down.

FIG. 8 is a plan view in a case where the heat control lever is displaced to a use position.

FIG. 9 is a plan view showing a state where assembly is completed.

FIG. 10 is a partially cut-away side view showing an example of a conventional gas amount adjusting device.

FIG. 11 is a plan view of only the main part.

FIG. 12 is a cross-sectional view of a main part of a conventional example in which a leaf spring is interposed between a head of a caulking screw and a mounting base plate.

[Description of Signs] 5: Thermal power adjustment lever, 7: Mounting base plate, 8: Shaft hole, 9:
Support shafts 10, 11 ... engagement support grooves, 12, 13 ... engagement support pieces, 14 ... rotation prevention pieces, 15 ... hook pieces, 16 ... convex shapes,
17 ... cushioning member.

Claims (7)

[Claims] 1. A gas amount adjusting device for adjusting a gas amount by operating a heating power adjustment lever pivotally supported by a mounting base plate to advance and retreat a needle valve, wherein a joint portion between the mounting base plate and the heating power adjustment lever is provided. A pivoting means formed by processing the mounting base plate and the heating power adjustment lever itself, a supporting means for supporting the heating power adjustment lever on the mounting base plate, and the mounting base plate and the heating power adjustment lever being connected so as not to be separated. A gas adjusting device, comprising: 2. A shaft formed in one of the joints between the mounting base plate and the heat control lever is rotatably fitted with a support shaft formed in the other, and the heat control lever pivots on the pivot. The gas amount adjusting device according to claim 1, wherein the gas amount adjusting device is a pivotable means that can be rotated. 3. The use time of the heating power adjusting lever by slidably fitting an engaging supporting piece formed on one of the joining portions between the mounting base plate and the heating power adjusting lever into an engaging supporting groove formed on the other. 2. The gas amount adjusting device according to claim 1, wherein the gas amount adjusting device is a supporting means for supporting the heat adjusting lever on the mounting base plate in the movement range. 4. A supporting member formed on one of the mounting base plate and the heat control lever and a hook formed on the other is hooked on the rotation preventing member to restrict the rotation range of use of the heat control lever, thereby supporting the support. 2. The gas amount adjusting device according to claim 1, wherein the mounting plate and the heating power control lever are connected so as not to be separated by maintaining the engagement of the device. 5. The joint between the mounting base plate and the heating power control lever,
At the non-use position of the heating power adjustment lever, the support shaft is fitted into the shaft hole, and the heating power adjustment lever is pivotally displaced to the usage position, and the engagement support piece is engaged with the engagement support groove to adjust the heating power to the mounting base plate. 5. The gas amount adjusting device according to claim 1, wherein the lever is supported, and in the use position, the hooking piece is deformed so as to be hooked on the rotation preventing piece to assemble the mounting base plate and the heat control lever. 6. The gas amount adjusting device according to claim 1, wherein one of the joints between the mounting base plate and the heat control lever is provided with a ridge for reducing frictional resistance and preventing rattling. 7. The gas amount adjusting device according to claim 1, wherein a buffer member for preventing rattling is interposed at a joint portion between the mounting base plate and the thermal power control lever.