KR100267946B1 - Handling device - Google Patents

Abstract

PURPOSE: A manipulating device is provided to prevent liquid inputted from a manipulation handle side from reaching a control instrument through a shaft member. CONSTITUTION: A manipulation plate(60) is inclined toward a manipulation side. The manipulation plate contains a ring shaped upper wall(61) having a manipulation handle(20) protruded to upward. A heat control apparatus(30) is fixed on an upper surface of a bracket for being connected to a manipulation shaft(10). The manipulation shaft is inserted to an opening hole portion(62) of the manipulation plate. The manipulation handle is formed by a body portion(26), a drooping wall portion(27), and a shaft portion(23) for inserting the manipulation shaft. The manipulation handle and the manipulation shaft are fixed toward an axis direction. A cap(40) is fixed on the manipulation shaft. The cap prevents liquid from being inputted to the heat control apparatus from the opening hole portion through a main body case(73).

Description

Control

The present invention is an operating device which is installed so that the operation handle is exposed on the upper surface of the casing or the upper surface of the operation plate, for example, a control device suitable for a hot air balloon or the like in which liquid such as soup boiled in a cooking pot flows into the operation handle. It is about.

In the mechanism operating apparatus of the type which exposes an operation handle to the upper surface of a hot air balloon, the countermeasure which the soup etc. flow out is necessary. Therefore, in the mechanism operating device of Japanese Utility Model Publication No. 57-116048, an annular protrusion projecting upward is formed at the circumferential edge of the through hole for inserting the operation shaft portion of the upper plate, and a disc having a diameter larger than the annular protrusion is formed. An operation knob having a portion is formed in series with and integrated with the operation shaft portion that passes through the through hole. Therefore, in the case where the mechanism operating device is used for a hot air balloon, the broth, etc. which flowed down to the upper plate is blocked by the annular projection, and the gap between the outer circumference of the operating shaft is blocked by the disc of the operation knob. The problem of inflow into the mechanism through the gap between the outer circumference of the operation shaft is avoided.

On the other hand, as disclosed in Japanese Utility Model Publication No. 59-4904, a decorative ring is provided on the same axis with respect to an operation handle, and the operation handle is rotatable into recesses formed in the decoration ring. There is a form of acceptance. In the prior art, since the operating shaft portion and the axis of the operating handle attached to the same are set horizontally, even if the operating handle is accommodated in the recess, a broth or the like that intrudes through the front of the mechanism is provided within the recess. It does not reach the installation of the calorie control device.

In the former mechanism operating apparatus, the annular convex portion is provided at the periphery of the through hole for inserting the operation shaft portion of the upper plate portion, and the height of the mechanism operating device is solved. However, in order to protrude this annular convex part toward the operation handle side of an upper side, there exists a processing limitation, and especially when an upper plate part is a glass upper plate, this is extremely difficult. In the case where the latter mechanism operating device is adopted as it is in the upper plate of the instrument such as a drop-in furnace, and the operation handle is arranged in an upward position on the upper surface of the upper plate, it is stored in the recess. The broth or the like arrives over the annular convex portion and reaches and damages a calorie control device such as a gas cock or a calorific switch disposed below.

The present invention has been made to solve the above problems, and a first object of the present invention is to solve the problem that the liquid introduced from the operation handle side reaches the control means connected to it through the shaft member in the operation handle operation To provide a device. A second object of the present invention is to provide an inexpensive operation device by simplifying the device and improving the assembling work by the device in addition to the first object.

BRIEF DESCRIPTION OF THE DRAWINGS The principal part sectional drawing of embodiment which concerns on the operation apparatus of this invention.

2 is a partially enlarged cross-sectional view of FIG.

3 is an explanatory diagram showing an operating state of the operation knob of FIG.

4 is a partially enlarged cross-sectional view showing another embodiment of the present invention.

5 is a partially enlarged cross-sectional view showing yet another embodiment of the present invention.

6 is a sectional view showing the principal parts of an embodiment of the present invention, the operation state of which is shown;

7 is a sectional view showing the principal parts of still another embodiment of the present invention;

8 is a sectional view showing the principal parts of still another embodiment of the present invention;

9 is a perspective view of a locking member used in the operation device of the present invention;

10 is a partially enlarged cross-sectional view showing yet another embodiment of the present invention.

11 is a sectional view showing the principal parts of still another embodiment of the present invention;

12 is a sectional view showing the principal parts of still another embodiment of the present invention;

Explanation of symbols for main parts of the drawings

10,110,210-Control shaft 11-Annular groove

20,120,220-Operation Handle 30,230-Calorie Control

40,140-Cap 60,160,260-Control Plate

In order to solve the above problems, a solution of the invention as set forth in claim 1 includes: an operation plate having an open hole portion, a shaft member fitted to the open hole portion, an operation handle provided at one end of the shaft member, Control means connected to the other end of the shaft member with the operation plate interposed therebetween, the control means for switching or adjusting a predetermined function when the operation knob is operated, abutting the edge of the open hole portion, And a cover member covering substantially. Here, the edge portion of the open hole portion refers to the peripheral portion of the open hole formed in the planar portion, and in the open hole partitioned by the cylindrical portion, the open end portion of the cylindrical shape is referred to.

In the case of adopting this means, for example, even if liquid such as soup is to flow into the open hole portion of the operation plate from the operation handle side, since the cover member substantially covers the open hole portion, the liquid Since the intrusion into the open hole portion is prevented, the problem of reaching the liquid by the control means sandwiched between the operation plates is eliminated. The cover member is formed to abut on the edge of the open hole of the operation plate and covers the open hole, so that the liquid penetrates into the open hole. In addition, in this solving means, the posture state of the shaft member may be in an inclined posture state in addition to the vertical direction.

Therefore, according to the means of the invention as set forth in claim 1, the first object is achieved, which "resolves the problem that the liquid flowing in from the operation handle side reaches the control means connected to it through the shaft member at the operation handle".

The solution of the invention according to claim 2 is a limitation of the cover member according to claim 1, which is characterized in that the cover member is fixed to the shaft member and is a flexible member deformable at least in the axial direction. According to this solution, since the flexible member which can be deformed in the axial direction is used as the cover member, the cover member is easily deformed according to its operation even when the operating knob is operated in the axial direction, and is always in contact with the edge of the open hole. Can be maintained. Therefore, the open-hole portion is always covered by the cover member regardless of the operation of the operation knob. Therefore, by using such a flexible member as a cover member and fixing it to the shaft member, the configuration as an operating device is simplified, and the problem that the liquid on the operation handle side reaches the control means is eliminated. Therefore, according to the means of the invention of claim 2, in addition to the first object, the second object is achieved, "simplification of the device and improvement of assembly workability thereby providing an inexpensive operation device".

The solution of the invention as defined in claim 3 is a limitation of the cover member according to claim 1, characterized in that the cover member is a corrugated member fixed to the operation handle and at least axially stretchable. According to this solution, since the corrugated member deformable in the axial direction is used as the cover member, even when the operation knob is operated in the axial direction, the cover member is easily deformed in accordance with its operation and always in contact with the edge of the open hole. Can be maintained. Therefore, the open-hole portion is always covered by the cover member regardless of the operation of the operation knob. Therefore, by using such a corrugated member as the cover member and fixing it to the operation handle, the configuration as the operation device is simplified, and the problem that the liquid on the operation handle side reaches the control means is eliminated. Therefore, according to the means of the invention according to claim 3, in addition to the first object, the second object is achieved, `` simplification of the device and improvement of assembly workability thereby providing an inexpensive operation device ''.

According to a fourth aspect of the present invention, there is provided an operation handle having a " operation plate having a drilled hole portion, a shaft member fitted to the drilled hole portion, and a recessed portion provided at one end of the shaft member. And control means connected to the other end of the shaft member with the operation plate interposed therebetween, for switching or adjusting a predetermined function when the operation knob is operated, and the lower end portion having a diameter larger than the open hole portion. And a cylindrical body provided between the operation plate and the operation handle so that the lower end portion abuts against a circumferential edge of the open hole portion. Since the cylindrical body is provided in the open hole portion of the operation plate, even if liquid such as broth is attempted to flow into the open hole portion of the operation plate from the operation handle side, the open hole portion is surrounded by the cylindrical body, that is, the cylindrical body is a barrier. This prevents the liquid from intruding into the open hole portion. If the cylindrical body is formed into an insert shape with respect to the drooping wall of the operation knob, the liquid is more difficult to penetrate, thus eliminating the problem of the liquid reaching the control means with the operation plate therebetween.

Further, when the cylindrical body is formed in the insert shape with respect to the drooping wall of the operation knob, the operation device does not grow in the height direction. Moreover, it is also easy to form a cover member in the inner side of the drooping wall of the said operation handle, and it does not become large in a lateral direction by this. Therefore, the operation device can be miniaturized.

Therefore, according to the means of the invention as set forth in claim 4, the first object is achieved, `` to solve the problem that the liquid introduced from the operation handle side reaches the control means connected to it through the shaft member at the operation handle ''.

The solving means of the invention of Claim 5 limits the cylindrical body of Claim 4, "The cylindrical body was made into the corrugated member which can expand and contract in an axial direction."

According to this solution, since the corrugated member that can be deformed in the axial direction is used as the cylindrical body, the cylindrical body is easily deformed according to its operation even when the operating knob is operated in the axial direction, and therefore, regardless of the operation of the operating knob. The open hole is always surrounded by a cylinder. Therefore, the use of such a corrugated member as a cylindrical body simplifies the configuration as the operating device, and also eliminates the problem that the liquid on the operating handle side reaches the control means, and does not increase the operating device. Therefore, according to the means of the invention according to claim 5, in addition to the first object, the second object is achieved, "simplification of the device and improvement of assembly workability thereby providing an inexpensive operation device".

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail based on drawing.

In the present embodiment, as shown in FIG. 1, the present invention is implemented in the operation unit of the drop-in furnace, and the main body case 73 opened upward in the open hole 71 formed in the countertop 70 is fitted. The support flange 74 at the upper end of the main body case 73 is supported by the circumferential edge of the open hole 71 and the open end is covered with the upper plate 63. An operation plate 60 having a predetermined width is formed at the front edge portion of the upper plate 63, and an operation device for operating the calorie control device 30 is provided on the operation plate 60.

The support flange 74 protruding from the circumferential edge of the main body case 73 and the circumferential edge of the operation plate 60 are connected to each other via a packing 72, and the connection part is connected to the countertop. It is supported by the peripheral part of the open hole 71 of 70. As shown in FIG. In the main body case 73, a bracket 31 for attaching the calorific control device 30 is formed in parallel with the operation plate 60 formed at the front edge of the upper plate 63, and both ends of the main body case 73 are formed. The bracket 31 is attached to the front edge portion of the open end of the main body case 73 in a bridge shape by being fixed to the side wall.

The operation plate 60 is formed to be inclined with respect to the operation side, as shown in cross section in FIG. 1. The operation plate 60 is formed with an annular wall 61 formed to protrude upward by extrusion processing at the position where the operation handle 20 is located. The calorie control device 30 is fixed to the upper surface of the bracket 31, and the operation shaft 10 is fixed to the calorie control device 30. The operation shaft 10 is fitted in a non-contact state to the opening hole 62 of the operation plate 60 so as to be substantially orthogonal to the operation plate 60, and the operation handle is attached to the operation plate 60 side. It is. As the calorie control device 30, for example, a gas cock for gas volume control is adopted in the case of a gas stove, and a calorie switch for controlling the amount of electricity supplied to the heater in the case of an electric stove.

The operation handle 20 is integrally formed with a trunk portion 26, a drooping wall portion 27 having a maximum outer diameter, and a shaft portion 23 to which the operation shaft 10 is fitted and fixed. The operation handle 20 and the operation shaft 10 are fixed in the axial direction by screwing or press-fitting or the like. The cap 40 as a cover member is fixed to the operation shaft 10. The cap 40 is installed to avoid a problem that soups, etc. boiling from cooking pots, penetrate into the main body case 73 from the open hole portion 62 and reach the calorie control device 30, and the like. It is attached to the position between 20 and the calorie control device 30, and it is provided so that the opening part 62 of the operation plate 60 may be covered.

The cap 40 has a thin disc shape, and the outer periphery thereof has an annular wall 41 draped downward on the same axis, and a through hole formed on the same axis as the operation shaft 10 at the center thereof. 46 is provided. As the cap 40, a synthetic resin material such as polyvinylcarbazole (PVC) is used in addition to the flexible, for example, natural rubber or synthetic rubber (nitrile rubber, silicone rubber, neoprene rubber). The outer periphery of the operating shaft 10 is fitted into the through hole 46 so that the cap 40 is fitted to the operating shaft 10.

According to the present embodiment, the cap 40 is provided such that the lower end portion 42 of the annular wall 41 abuts over the entire circumference of the upper surface of the operation plate 60. At this time, in order to make the lower end 42 press-contact with the upper surface of the operation plate 60, and to improve adhesiveness, the cap 40 is installed to be biased slightly downward in the axial direction on the operation shaft 10, The elastic force by the elastic deformation is fixed to the operation shaft 10 in the state where the positioning is made so as to be a pressing contact force. Therefore, the open hole portion 62 is closed by the cap 40 covering the open hole portion 62. In addition, in the example of the figure, the upper end part 69 of the annular wall 61 of the operation plate 60 is formed so that it may contact the back surface (lower surface of drawing) of the cap 40 over the whole circumference, and the said cap 40 In addition to the blockage of the < RTI ID = 0.0 > In this case, the annular wall 41 in pressure contact with the upper surface of the operation plate 60 has the height of the annular wall 61 equal to or slightly lower than the height of the annular wall 41 so that the pressing force thereof is not weakened. Setting. The same applies to the description of the drawings to be described later.

In particular, in the case where the upper end portion 69 is in contact with the rear surface of the cap 40 and the lower end portion 42 of the cap 40 is in contact with the operation plate 60, the operation shaft 10 is axially oriented at the time of shaft operation. In the case of operation in FIG. 10, if the annular wall 41a of the cap 40a is formed thicker than the planar portion 43a of the cap 40a, as shown in FIG. 10, only the planar portion 43a is easily deformed. Do.

The through hole 46 in the cap 40 is set slightly larger than the outer diameter of the operation shaft 10 so that the operation shaft 10 is easily fitted. The cap 40 and the operation shaft 10 are fixed to each other by an elastic locking member, for example, by the O rings 50 and 51. In this way, the rotation stopper of the cap 40 is not impeded to the installation shaft 10.

In the fixed state of the cap 40 with respect to the operation shaft 10, according to this embodiment, as shown in FIG. 2, the pair of O-rings 50 and 51 are externally fitted to the operation shaft 10 so that the cap ( 10) is held and fixed by the clamping force acting in the axial direction of these O-rings 50 and 51. Since the O-rings 50 and 51 act to contract inward in the radial direction, when the outer rings are fitted to the operation shaft 10, the outer portions are closed. That is, the axis line (up-down) direction of an operation shaft is closed. Then, the cap 40 is squeezed by the O-rings 50 and 51 so that a reaction force contracting in the axial direction acts so that the cap 40 is fixed to the operation shaft 10. In the present embodiment, since the annular groove 11 is formed on the same axis as the axis in the operating shaft 10, the annular groove 11 defines the attachment position of the O-rings 50 and 51. The position in the axial direction is determined, and this annular groove 11 determines the attachment position in the height direction of the cap 40. In addition, the O-rings 50 and 51 are easily attached by the annular groove 11.

Therefore, in such a configuration, the cap 40 is a hole which is opened with high adhesion by pressing the lower end portion 42 of the annular wall 41 to the upper surface of the operation plate 60 by the elastic force due to elastic deformation. The part 62 is blocked. When the boiling broth etc. flow down to the operation plate 60 side, since the cap 40 covers and closes the open hole part 62 of the operation plate 60, it penetrates into the open hole part 62. Since it is blocked, it does not flow down inside the main body case 73. Then, the lower end portion 69 of the annular wall 61 on the operation plate 60 side is formed to abut on the back surface of the cap 40 over the entire circumference, so that the double-opened hole portion 62 is closed. As a result, the blockage state becomes better. Therefore, it is avoided that the soup or the like flows into the calorific control device 30 inside the main body case 73 and damages it. Moreover, since the cap 40 is a flat plate whose thickness is thin compared with the diameter, and is located between the operation handle 20 and the operation plate 60, the operation device of this embodiment does not increase.

In addition, as described in detail in the well-known embodiment of the present embodiment, at least the lower end portion 42 of the annular wall 41 is in contact with the upper surface of the operation plate 60 so that the open hole portion 62 is covered and closed. . Further, at least the upper end 69 of the annular wall 41 abuts against the back surface of the cap 40 so that the open hole 62 may be covered and closed. In addition to this, although the operation plate 60 is formed to be inclined on the upper part of the main body case, the above problem can be solved similarly to the case where the operation plate 60 is formed in a horizontal shape.

Here, when the operation knob 20 is operated, the calorific control device 30 is adjusted by the operation shaft 10 connected thereto so that the heat source is switched on / off or the calorific value is changed. The operation of the operation shaft 10 is not only rotated in the circumferential direction of the axis, but also operated in the axial direction or a combination thereof. For example, there is an operation of pressing and turning the operation knob as in the opening operation of a gas cock or the like, and also reciprocating in the axial direction such as an operation switch. In this structure, the operation | movement operation | movement including especially the axial movement of this operation shaft 10 can respond so that soup etc. may not intrude into the main body case 73 through the open-hole part 62. FIG.

3 is an enlarged main sectional view of an enlarged portion of the operation knob 20 and the calorie control device 30 provided in succession in FIG. 1, and shows a front and rear state of operating the operation knob 20 in the axial direction. 3A is an initial state before operating the operation knob 20, and FIG. 3B shows a state in which the operation knob 20 is pressed or turned while pressing. In FIG. 3A, the cap 40 covers and closes the open hole portion 62 of the operation plate 60. In this state, the cap 40 is brought into contact with the upper surface of the operation plate 60 over the entire circumference of the open hole so as to cover the open hole portion 62. The lower end portion 42 is pressed against the upper surface of the operation plate 60 by the elastic force due to the elastic deformation of the cap 40 so that the adhesion height of the cap 40 to the operation shaft 10 is increased. It is preferable to set the position to predetermined. In the initial state of the operation handle 20, when the soup or the like flows down from the upper side of the figure, since the open hole portion 62 is blocked as described above, the soup or the like penetrates into the inner side of the main body case 73. I never do that.

In FIG. 3B, when the operation knob 20 is pressed or turned while pressing downward, the cap 40 fixed to the operation shaft 10 also moves downward in conjunction with this. Since the lower end portion 2 of the cap 40 is in contact with the upper surface of the operation plate 60, the cap 40 has a middle portion 43 as shown in FIG. 3B in conjunction with the operation of the operation shaft 10. As it elastically deforms and bends. In addition, when the rotation operation is accompanied by the operation of the operation handle 20, the lower end portion 42 of the cap 40 is operated as described above while sliding the upper surface of the operation plate 60 in the circumferential direction. Therefore, since the elastic deformation becomes larger than the initial state of the operation due to the bending of the cap 40, the lower end portion 42 of the cap 40 is in pressure contact with the upper surface of the operation plate 60 at a higher pressure. Therefore, even when the operation knob 20 is operated in the axial direction, the open hole portion 62 of the operation plate 60 is still covered and closed by the cap 40, so that the broth or the like penetrates into the main body case 72. To stop. In addition, when the cap 40a of FIG. 10 described above is employed instead of the cap 40 in FIG. 3, deformation of the cap is further facilitated, and therefore, the apparatus having a large stroke in the axial direction of the operation shaft 10 is used. Suitable.

As described above, according to the present invention, when the operation knob 20 is operated in the axial direction, the cap 40 interlocking with this operation is elastically deformed to always be brought into contact with the opening hole 62, and the opening hole is Since the part 62 is covered and closed, the liquid such as broth is prevented from reaching the calorific control device 30 side. Since the cap 40 is itself thin and is provided between the operation handle 20 and the calorie control device 30, the operation device of the present embodiment does not become large. In addition, in the radial direction, the cap 40 is provided on the inner side of the drooping wall portion 27 of the operation knob 20, so that a separate installation space for installing the cap 40 is not required. Therefore, further miniaturization is possible.

In this embodiment, the operation distance of the operation knob 20 in the axial direction is about 3 mm, and the outer diameter of the cap 40 is formed to be about 36 mm in diameter. Moreover, the diameter of the opening hole 62 is about 29 mm, and the outer diameter dimension of the operation knob 20 is set to 44 mm, 46 mm, and 50 mm according to an installation mechanism, for example. In addition, it can set variously according to the magnitude | size of an operation distance, the conditions of the outer diameter dimension of the cap 40, or the bending degree by elasticity. Incidentally, in the illustrated example, the operation operation in the axial direction of the operation knob 20 has been described as the initial state of Fig. 3A, but it is also possible to use the state of Fig. 3B as the initial state of operation. The present invention can also be applied to operations such as rotation of the operation knob 20.

Fig. 4 shows another embodiment of the present invention and shows the left side of the operating shaft 10 in Fig. 1 as a sectional view of the main portion in which the attachment portion of the cap 40 is enlarged. According to the embodiment shown in FIG. 4, the cap 40 is directly fitted to the operation shaft 10 without using the engaging members having the same elasticity as the O-rings 50 and 51 described above. In this case, the inner diameter of the through hole 46 of the cap 40 is set smaller than the outer diameter of the operation shaft 10. The cap 40 is fixed to the operation shaft 10 by the reaction against the expansion of the through hole 46 by the operation shaft 10 when the cap 40 is externally fitted to the operation shaft 10. do. Reference numeral 52 denotes a misalignment preventing member which is fitted to the operation shaft 10 outside and prevents the cap 40 from shifting in the axial direction when the operation shaft 10 is operated in the axial direction. In the example shown in figure, since the operation axis 10 is operated as the lower side of the figure, the misalignment prevention member 52 is attached to the upper side of the cap 40. As shown in FIG. As this misalignment prevention member 52, the e-type locking ring, c-type locking ring, etc. which are shown, for example in FIG. 9A can be used. In addition, as shown in the example of FIG. 4, the annular groove 11a is formed in the portion of the operating shaft 10 on which the cap 40 is externally fitted, thereby facilitating attachment of the cap 40 and determining the attachment position. In this case, the shift preventing member 52 may not be provided. In addition, in the case where the shift preventing member 52 is provided, the annular groove 11a is formed in the operation shaft 10 and the shift preventing member 52 is externally fitted therein, which is more effective in preventing the shift.

FIG. 5 is a sectional view showing the principal parts of still another embodiment, and shows the left side of the operation shaft 10 similarly to FIG. 4. In FIG. 5, a cap 44 made of synthetic resin was used instead of the cap 40 described above. The cap 44 has a disc shape, a thick inner wall portion 45 formed on the inner side, a thick outer wall portion 47 formed on the outer side, and an intermediate portion 49 connecting them. ) Is integrally formed. The outer periphery of the lower end part of the outer wall part 47 is formed with the annular convex part 48 which protrudes below, and this annular convex part 48 is in contact with the upper surface of the operation plate 60. As shown in FIG. . Also in this embodiment, the operation shaft 10 is operated in the axial direction and also rotated around the axis. The attached state of the cap 44 shown in the figure is attached to a predetermined height of the operation shaft 10 so that the annular projection 48 of the cap 44 abuts on the upper surface of the operation plate 60, and the cap 44 ) Is bent in the axial direction so that the elastic force acts to press the upper surface of the operation plate (60). The cap 44 is formed so that the intermediate part 49 of a shape with a thin thickness mainly bends. The cap 44 is formed such that the bending state is always maintained within the range in which the operation shaft 10 is operated in the axial direction, and is pressed toward the operation plate 60 side. Therefore, the cap 44 always covers and closes the open hole portion 62. In addition, the inner wall portion 45 of the cap 44 is loosely fitted into the annular groove 12 of the operation shaft 10, and is formed so as to be somewhat swinged against the operation in the axial direction of the operation shaft 10. . This is because the lower end of the outer wall portion 47 is easily separated from the operation plate 60 by the flow in the inner wall portion 45 in addition to the bending in the intermediate portion 49 when the operating shaft 10 is operated in the axial direction. To avoid that. Therefore, the upper surface 45a and the lower surface 45b of the inner wall portion 45 are curved.

In addition, in the present Example, the site | part which the annular convex part 48 abuts on the operation plate 60 was made into convex shape. This is because the cap 44 is rotated, so that the contact surface is as small as possible to be in line contact. Accordingly, the cap 44 is reduced in abrasion due to friction with the operation plate 60. Moreover, since the annular convex part 48 is formed in the largest outer periphery part of the cap 44, the bending of the cap 44 is made easy by making the radial distance from an axis center largest. In addition to the above-described polyvinylcarbazole (PVC), silicon, natural rubber (NBR), or the like having good friction resistance in addition to flexibility is also preferably used for the cap 44.

In FIGS. 1 to 5 and 10, when the operation knob 20 is operated in the axial direction, the cap 40 is bent in the axial direction to cover the opening hole 62 of the operation plate 60. This was to be blocked. 6 to 8 show an embodiment using a corrugated cap instead of the cap described above.

6 is an enlarged main sectional view of the portion of the operation knob 120. The cap 140 in the figure has shown the cross section at the left side, and the side surface at the right side. 6A illustrates an initial operation state of the operation knob 120, and FIG. 6B illustrates a state in which the operation knob 120 is operated to the lower side of the drawing.

As the cap 140, for example, a synthetic resin material such as polypropylene (PP) is used, and as shown in the figure, the cap 140 is formed in a corrugated shape that opens in the axial direction and expands and contracts in the axial direction.

The manipulation handle 120 includes a trunk portion 121, a drooping wall portion 122 having a maximum outer diameter, and a shaft portion 123 to which the manipulation shaft 110 is fitted and fixed, and the manipulation shaft 110. It is configured to operate in the axial direction together with. As shown in the figure, the upper open end 140a, which is one side of the cap 140, is formed to be fitted to the outer circumferential portion of the shaft portion 123 of the operation knob 120 and to contact the inner wall 124. The lower open hole end 140b on the other side is fitted to the outer periphery of the annular wall 161 of the operation plate 160 and is formed to abut on the upper surface 163 of the operation plate 160. have. The cap 140 in the present embodiment is compressed in the axial direction in advance in response to the initial operation state of the operation knob 120 (expanded than the compressed state of the pressing operation state of the operation knob 120 described later). It is formed. Therefore, the cap 140 is inserted and fixed between the manipulation handle 120 and the manipulation plate 160 in a compressed state, so that a pressing contact force with respect to the manipulation plate 160 of the lower opening hole 140b is obtained. If necessary, the upper open hole end 140a or the lower open hole end 140b of the cap 140 may be fixed to a corresponding mating part by adhesion, welding, or the like.

Therefore, even in the state of FIG. 6A and in the state of FIG. 6B in which the manipulation knob 120 is pressed, the lower open hole end 140b of the cap 140 always comes into contact with the upper surface 163 of the manipulation plate 160 to open it. By covering and sealing the hole 162, the problem that the soup and the like on the operation handle 120 side enters the main body case is prevented, and the problem of reaching and damaging the internal calorific control device 30 shown in FIG. 1 is eliminated. do. In addition, the lower open end 140b of the cap 140 is preferably in contact with the upper surface 163 of the operation plate 160, but may be in contact with at least. Also in the present embodiment, the operation plate 160 is formed with an annular wall 161 defining the opening hole portion 162, while positioning the lower end of the cap 140, and if the lower end of the cap 140 Even if the push contact with the upper surface 163 of the operation plate 160 is weak, it is more difficult for the soup and the like to penetrate through the annular wall 161 and enter the open hole 162. Although not shown, the lower open hole end 140b of the cap 140 is brought into contact with the upper end of the annular wall 161 of the operation plate 160 to cover the open hole 162 and close it. You can do that.

Thus, since the cap 140 is provided in the inner side in both the axial direction and the radial direction of the operation knob 120, and is a corrugated cylindrical body, it can be reduced in size when it moves in the axial direction.

FIG. 7 shows a modification of FIG. 6. The cap 141 has a flat plate portion 142 on its upper portion, and the flat plate portion 142 is fitted to the shaft portion 125 of the operation knob 120 and abuts against the bottom surface of the shaft end portion 123. It is formed to be. And the cap 141 is fixed to the operation handle 120 by fitting the locking member 53 shown to FIG. 9B to the shaft part 125 outside. The locking member 53 is composed of a trunk portion 54 and a jaw portion 55 of the upper portion thereof, and the trunk portion 54 is enlarged to fit the outer peripheral portion of the shaft portion 125. Accordingly, the trunk portion 54 is fixed to the shaft portion 125 by the contracting force, and at the same time, the jaw portion 55 is disposed between the lower surface of the shaft end portion 123 and the flat plate portion 142 of the cap 141. And fix it. Instead of the locking member 53, a locking member 56 as shown in Fig. 9C may be used. When the engaging member 56 is externally fitted to the shaft portion 125, the toothed portion 56a on the inner side is plastically deformed and engaged with the shaft portion 125 side to be fixed. Therefore, even in this embodiment, regardless of the operation handle 120 in the axial direction, the cap 141 always covers and closes the open hole portion 162 of the operation plate 160.

FIG. 8 shows a modification of FIGS. 6 and 7. The upper portion of the cap 143 is fitted to the outer circumferential portion of the shaft portion 123 of the operation knob 120 at its upper portion. In addition to the fitting method, the cap 143 is fixed by adhesion or welding. In the present embodiment, the slit-shaped hole portion 145 is formed in the cylindrical portion 144. The hole part 145 is formed in four places, for example in the circumferential direction of the cylindrical part 144, and serves as a vent hole which communicates the inside and outside of a main body case. Since the hole part 145 is located in the upper part of the cap 143, the soup etc. in the operation handle 120 side do not actually invade into the open hole part 162 from this hole part 145. Therefore, in this embodiment, since the inflow of the broth on the operation handle 120 side into the open hole portion 162 is prevented by the cap 143, the inside and the outside of the main body case are ventilated, for example, air for cooling in the main body case. Suitable for venting incineration air when gas burner is used as the heat source. Also in the case of this embodiment, regardless of the operation of the operation knob 120 in the axial direction, the cap 143 always covers and closes the open hole portion 162 of the operation plate 160.

Another embodiment of the present invention will be described with reference to FIGS. 11 and 12. In FIG. 11, a cylindrical cover 240 (cylindrical body) is attached to the outer circumferential side of the annular groove 261 defining the opening hole 262 on the upper surface 263 of the operation plate 260. . The cover 240 is formed so as to surround the annular wall 261 over the entire circumference, and the lower end portion 240b abuts on the upper surface 263 by its own weight or is fixed by adhesion or welding. The cover 240 is made of, for example, a synthetic resin material such as polypropylene (PP), and is formed in an insert shape in the axial direction with respect to the drooping wall 222 of the operation knob 220. Therefore, even when liquid such as broth tries to flow into the open hole portion 262 of the operation plate 260 from the operation handle 220 side, the open hole portion 262 is surrounded by the cover 240 and the cover ( Since the upper opening 240a of the 240 is surrounded by the drooping wall 222, the drooping wall 222 and the cover 240 become barriers, and liquid such as broth enters the open hole 262. It is prevented. In addition, in this example, since the annular groove 224 is formed in the operation knob 220, and the upper groove 240a is fitted into the annular groove 224, it is an insert shape. Since the intrusion becomes more difficult, the liquid is prevented from reaching the internal calorific control device 230 with the operation plate 260 interposed therebetween.

On the other hand, since the cover 240 is formed in the insert shape with the drooping wall 222 of the operation handle 220, the intrusion of liquid such as broth is reliably prevented even if the height of the cover 240 is not so high. Therefore, the operating device does not grow in the height direction. Moreover, since the cover 240 does not become large also in the side, it can be miniaturized. In Fig. 11, the interval in the axial direction between the upper end 240a of the cover 240 and the recess 224 of the operation knob 220 is set to about 4 mm, even when the operation knob 220 is pressed (axial direction). Operation) and the upper end 240a of the cover 240 does not contact the recess 224.

In addition, in operation in the axial direction such as pressing or releasing of the operation knob 220, the pressing distance is, for example, the axis of the upper end 240a of the cover 240 and the recess 224 of the operation knob 220. When larger than the gap dimension in a direction, the structure of FIG. 12 shown next is preferable. That is, in Fig. 12, the cover 340 is made of a synthetic resin material such as polypropylene (PP), and is formed in a corrugated shape that stretches in the axial direction. 12A shows a state before the operation knob 220 is operated, and FIG. 12B shows a state in which the operation knob 220 is pressed. When the operation knob 220 is pressed, the upper end 340a of the cover 340 and the recess 224 of the operation knob 220 come into contact with each other, but the cover 340 is easily compressed and reduced. Therefore, it does not interfere with the pressing operation of the operation knob 220, and it is possible to prevent the soup and the like from entering the open hole portion 262 regardless of the pressing operation. In addition, it is also possible to make FIG. 12B into the state before operating the operation knob 220, and FIG. 12A to operate the operation knob 220. As shown in FIG. Therefore, also in FIG. 12, the liquid is prevented from reaching the internal calorific control device 230 with the operation plate 260 interposed therebetween. In addition, the corrugated cover 340 is formed into an insert shape to be accommodated in the inner side of the operation handle 220, thereby miniaturizing the device, and can be manufactured at low cost by simplifying the device and improving the assembly workability. have. Also in this example, even if the concave portion 224 is not formed, the upper end 340a of the cover 340 may be surrounded so as to be above the lower end of the drooping wall 222 of the operation knob 220.

As mentioned above, although embodiment concerning this invention was described, if the control means, such as calorie control devices 30 and 130, are operated through the operation shafts 10 and 110 by operating the operation knobs 20 and 120 etc., this invention can be applied. have.

As described above, according to the invention of the operating device according to claim 1, the liquid flowing from the operation handle side flows directly to the control means side or is directly controlled by the cover member which always abuts on the edge of the open hole and substantially covers it. The problem of reaching the means is solved.

According to the invention of the operating device according to claim 2, the simplification of the device and the assembly workability thereof are thereby improved, whereby it can be manufactured at low cost.

And according to invention of the operating apparatus of Claim 3, similarly to invention of Claim 2, simplification of an apparatus and the assembly workability by this are improved, and it can manufacture at low cost by this.

According to the invention of the operating device according to claim 4, liquid inflow to the control means side is prevented.

According to the invention of the operating device according to claim 5, since the cylindrical body is formed in a corrugated shape, in addition to the effect of the invention according to claim 4, the simplification of the device and its assembly workability are improved, thereby making it inexpensive. can do.

Claims (5)

An operation plate having an open hole portion, a shaft member fitted to the open hole portion, an operation handle provided at one end of the shaft member, and an operation plate disposed between the other end of the shaft member with the operation plate interposed therebetween. A control means for switching or adjusting a predetermined function when the operation is performed, wherein the cover member abuts against an edge portion of the open hole portion and substantially covers the open hole portion. The operating device according to claim 1, wherein the cover member is fixed to the shaft member and is made of a flexible member which is deformable at least in the axial direction. The operating device according to claim 1, wherein the cover member is a corrugated member fixed to the operation handle and at least axially stretchable. An operation plate having an opening portion, an shaft member fitted to the opening portion, an operation handle provided at one end of the shaft member and having a concave portion on the shaft member side, and the shaft having the operation plate therebetween; A control means connected to the other end of the member and switching or adjusting a predetermined function when the operation knob is operated, the lower end portion having a diameter larger than that of the opening hole, and the operation plate and the operation knob And a cylindrical body in which said lower end portion is provided to abut on a circumferential edge of said open hole portion therebetween. The operating device according to claim 4, wherein the cylindrical member is made of a corrugated member that is axially stretchable.

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