JP5161806B2 - Operation knob for stove - Google Patents

Description

  The present invention relates to an operating knob for a stove connected to an operating shaft of a controller for a heat source of the stove.

  A stove, for example, a gas stove, is provided with a valve unit that controls gas supply to a burner serving as a heat source as a heat source controller. The valve unit is provided with an operating shaft. The operating knob is connected to the operating shaft in a non-rotating state, and the burner is turned off and the heating power is adjusted via the valve unit by rotating the operating knob. ing. The operation knob is generally formed of a synthetic resin.

  Conventionally, there has been known one in which an operation knob is made of metal in order to give a high-class feeling (see, for example, Patent Document 1). The operation knob described in Patent Document 1 is formed in a shape in which a protruding portion extending in a predetermined diametrical direction is formed on the upper surface of the disk-shaped lower portion, and the operation knob is rotated by pinching the protruding portion with a finger. It is designed to operate.

  By the way, for reasons of design, it may be desired to form the operation knob in a columnar shape that is made of metal and does not have the protruding portion. Furthermore, if the outer peripheral surface of the operation knob is a plated surface and the outer end surface is a satin finish surface, a different visual impression can be given to the outer peripheral surface and the outer end surface, resulting in a novel design. However, even if a satin finish is applied to the outer end face of the operation knob, fine streaks due to the satin finish are buried by the plating process, and it becomes impossible to give different visual impressions on the outer peripheral face and the outer end face of the operation knob.

  When the operation knob is formed in a columnar shape, it is necessary to provide an index for making the rotation angle visible in a portion near the outer periphery of the outer end surface of the operation knob. Here, if a concave portion serving as an index is formed on the outer end surface of the operation knob, dirt accumulates in the concave portion, and thus a convex portion serving as an index must be formed on the outer end surface of the operation knob. However, in this case, when finishing the outer end surface of the operation knob, the convex portion becomes an obstacle, and finishing of the periphery of the convex portion becomes difficult.

JP 2006-105557 A

  In view of the above points, the present invention is a columnar metal operation knob applied to a stove, which can give a different visual impression between the outer peripheral surface and the outer end surface, and finishes the outer end surface. The problem is to provide an index that can be provided without hindering processing.

  In order to solve the above-described problems, the present invention provides a control knob for a stove connected to an operation shaft of a controller for a heat source of a stove, which is made of metal and has a columnar outer shape whose outer shape is connected to the operation shaft. And a metal plate member that covers the outer end surface of the knob body, and a pin that is fitted and fixed to a through hole formed in a portion near the outer periphery of the plate member, and one end of the pin is exposed on the surface of the plate member The portion on the other end side of the pin protrudes from the back surface of the plate member, and the portion on the other end side of the pin is inserted into the engagement hole formed on the outer end surface of the knob body so that the plate member is phased with respect to the knob body. It is decided that it is decided.

  According to the present invention, since the outer end surface portion of the operation knob is composed of a plate member separate from the knob body, when the knob body is plated and the surface of the plate member is satin finished, The fine streak due to the satin finish of the plate member is not buried by the plating process, and an operation knob with a novel design that can give different visual impressions on the outer peripheral surface and the outer end surface can be obtained.

  In addition, since the index is composed of pins that are fitted and fixed in the through holes formed in the plate member, the finishing process is hindered by finishing the surface of the plate member before fitting the pins into the through holes. An indicator can be provided without doing. Furthermore, since the pin is also used for phasing the plate member with respect to the knob body connected to the operation shaft of the heat source controller, the correlation between the rotation angle of the operation shaft of the heat source controller and the position of the index Can be ensured.

  In the present invention, it is preferable that the pin is a parallel pin with one end chamfered, and the pin is fitted and fixed to the through hole so that the one end is exposed on the surface of the plate member. Here, the parallel pin is a JIS standard product, and it is not necessary to use a custom-made product as an index pin, so that the cost can be reduced. Furthermore, since one end of the pin exposed on the surface of the plate member is rounded, even if the finger touches this, the finger is not damaged and is safe.

  By the way, if the operation knob arranged on the top plate of the stove is made of a synthetic resin, the portion facing the heat source side of the operation knob becomes hot during use of the stove, which may give the user an unpleasant feeling. On the other hand, if the present invention is applied to the operation knob arranged on the top plate of the stove, the heat conductivity of the knob main body is increased, so that the heat input to the portion facing the heat source side of the knob main body is heated. Heat is transferred to the whole and dissipated, making it difficult to get hot. Also, if the knob body is plated, the outer peripheral surface of the knob body becomes a mirror surface, the top plate is reflected on the outer peripheral surface of the knob body, and a sense of unity with the top plate is obtained, and the appearance is also improved.

The perspective view of the stove which comprises the operation knob of embodiment of this invention. Sectional drawing cut | disconnected by the II-II line | wire of FIG. The perspective view seen from diagonally upward of the operation knob of embodiment. Sectional drawing cut | disconnected by the IV-IV line of FIG. The perspective view seen from the slanting lower part of the operation knob of embodiment.

  FIG. 1 shows a state where a drop-in stove 2 is incorporated in a countertop 1 of a system kitchen. As shown in FIG. 2, the stove 2 includes a box-shaped stove body 3 having an upper surface as an open surface. An outer bending flange 3 a is formed on the upper edge of the stove body 3, and the outer bending flange 3 a is placed at the edge of the stove opening 1 a in a state where the stove body 3 is dropped into the stove opening 1 a opened in the countertop 1. The stove body 3 is suspended from the countertop 1 by being hooked. And the top plate 4 covers the stove body 3 over the outer bending flange 3a from above.

  The top plate 4 is formed of a glass plate or a metal thick plate. A packing 4a is attached to the peripheral edge of the lower surface of the top plate 4, and the top plate 4 is seated on the countertop 1 via the packing 4a outside the outer bending flange 3a. On the rear side of the top plate 4, a frame 5 having a vent 5a for taking combustion air into the stove main body 3 and a hood portion 5b for blinding the vent 5a is attached. Further, the top plate 4 is provided with a burner opening for allowing a burner 6 as a heat source provided in the stove body 3 to face. The burner 6 is provided with a cover ring 6a that covers the burner opening. The virtues 7 are placed on the top plate 4 so as to surround the cover ring 6a.

  With reference to FIG. 2, a valve unit 8 serving as a heat source controller for controlling gas supply to the burner 6 is disposed in the front portion of the stove body 3. The valve unit 8 includes an operation shaft 8 a that protrudes onto the top plate 4 through a hole 4 b formed in the top plate 4. An operation knob 9 connected to the operation shaft 8 a is arranged on the top plate 4. The valve unit 8 is a known unit incorporating an ignition switch, a safety valve, and a gas amount adjusting cock, and detailed description thereof is omitted. In addition, a cylindrical packing 4 c that protrudes above the top plate 4 is mounted in the hole 4 b in order to prevent intrusion of the boiled juice.

  As shown in FIGS. 3 to 5, the operation knob 9 includes a knob main body 91 connected to the operation shaft 8 a and a plate member 92 that covers the upper end surface that is the outer end surface of the knob main body 91. The knob body 91 is made of metal, for example, a die-cast product of zinc alloy, and the outer shape is a column shape. In the present embodiment, chamfered portions 911 are formed at four locations in the circumferential direction of the outer peripheral surface of the knob main body 91 so as to be recessed inward in the radial direction. The knob body 91 is subjected to a plating process such as chrome plating. Therefore, the outer peripheral surface of the knob main body 91 is a mirror surface, and the top plate 4 is reflected on the outer peripheral surface of the knob main body 91 so that a sense of unity with the top plate 4 is obtained. In addition, since the thermal conductivity is increased by making the knob body 91 made of metal, the heat input to the portion of the knob body 91 facing the burner 6 side is transferred to the entire knob body 91 to be dissipated and heated. There is also an advantage that it becomes difficult to become.

  In addition, a shaft portion 912 is provided in the center portion of the knob main body 91 with a lacking portion between the outer peripheral wall portion, and a shaft hole 913 serving as a connecting portion for the operation shaft 8a is formed in the shaft portion 912. Is formed. The shaft hole 913 is formed in a D-shaped cross section in accordance with the operation shaft 8a formed in a D-shaped cross section. By fitting the operation shaft 8a into the shaft hole 913, the knob body 91 is operated by the operation shaft 8a. 8a is connected in a state of being prevented from rotating. A presser ring 914 is attached to the outer periphery of the lower end of the shaft portion 912. Further, a groove 912 a reaching the shaft hole 913 is formed at one place around the lower end of the shaft portion 912. Then, an inwardly bent portion 914a formed on the presser ring 914 is brought into pressure contact with the outer peripheral surface of the operation shaft 8a through the groove portion 912a, so that the knob body 91 is prevented from being detached from the operation shaft 8a by a frictional force.

  The plate member 92 is made of metal, for example, stainless steel. The back surface (lower surface) of the plate member 92 has a stepped shape, and a boss portion 921 extending downward is vertically provided at the center thereof. Further, the upper end surface of the knob body 91 is formed into a stepped shape for receiving the stepped shape portion on the back surface of the plate member 92, and a recess 915 for receiving the boss portion 921 is formed at the center of the upper end surface of the knob body 91, A hole 916 reaching the shaft hole 913 is formed on the bottom surface of the recess 915. Then, a screw hole 922 is formed in the boss portion 921, and the fixing screw 923 is screwed into the screw hole 922 from the shaft hole 913 side through the hole 916, whereby the plate member 92 is fixed to the knob body 91. .

  In addition, a through-hole 924 penetrating in the vertical direction is formed at one location near the outer periphery of the plate member 92, and a concave engagement hole is formed at one location near the outer periphery of the upper end surface of the knob body 91. 917 is formed. A pin 93 that is fitted and fixed to the through-hole 924 by press-fitting or bonding is provided. One end (upper end) of the pin 93 is exposed on the surface (upper surface) of the plate member 92, and serves as an index for making the rotation angle of the operation knob 9 visible. Further, the other end portion (lower part) of the pin 93 protrudes from the back surface of the plate member 92, and the lower part of the pin 93 is inserted into the engagement hole 917 on the upper end surface of the knob body 91, so The plate member 92 is phased.

  The pin 93 is formed of a parallel pin with one end chamfered, and the pin 93 is fitted and fixed to the through hole 924 so that the one end, that is, the round chamfered portion 93 a is exposed on the surface of the plate member 92. . Such parallel pins are JIS standard products (JIS B1354) and are mass-produced, which is advantageous for cost reduction. Even if the finger touches the exposed end of the pin 93, the exposed end is a round chamfer 93a, so that the finger is not damaged and is safe.

  The surface of the plate member 92 is subjected to a satin finish for concentric fine lines. Here, if the operation knob is an integral part, even if the upper end of the operation knob is satin-finished, when applying plating to the operation knob, fine stripes due to the satin finish are buried in the plating layer, and the operation knob is It becomes impossible to give a different visual impression between the outer peripheral surface and the upper end surface. On the other hand, in this embodiment, since the upper end surface portion of the operation knob 9 is configured by a plate member 92 that is separate from the knob body 91, the surface of the plate member 92 is satin-finished by plating the knob body 91. As a result, the operation knob 9 with a novel design that gives a different visual impression between the outer peripheral surface and the upper end surface can be obtained.

  By the way, it is also possible to integrally form a convex portion serving as an index on the surface of the plate member 92. However, in this case, the convex portion becomes an obstacle when finishing the surface of the plate member 92. The surrounding finish becomes difficult. On the other hand, in this embodiment, since the index is composed of the pin 93 that is fitted and fixed to the through hole 924 formed in the plate member 92, the index of the plate member 92 is set before the pin 93 is fitted to the through hole 924. By performing the surface finishing process, an index can be provided without hindering the finishing process. Further, since the pin 93 is also used for phasing the plate member 92 with respect to the knob body 91 connected to the operation shaft 8a of the valve unit 8, the correlation between the rotation angle of the operation shaft 8a and the position of the index is obtained. It can be surely secured.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to this. For example, in the above embodiment, the knob body 91 is plated and the surface of the plate member 92 is satin finished, but other finishing processing is applied to the outer peripheral surface of the knob body 91 and the surface of the plate member 92. Is also possible. Moreover, although the said embodiment applies this invention to the operation knob 9 arrange | positioned on the top plate 4 of a gas stove, this invention is applicable similarly to the operation knob arrange | positioned in the front surface of a gas stove. Further, the present invention can be similarly applied to an operation knob of an electric stove that uses an electric heater or an electromagnetic induction coil as a heat source.

2 ... Stove, 4 ... Top plate, 6 ... Burner (heat source), 8 ... Burner unit (heat source controller), 8a ... Operation shaft, 9 ... Operation knob, 91 ... Pick body, 917 ... Engagement hole, 92 ... Plate member, 924... Through hole, 93... Pin, 93 a.

Claims (4)

In the stove control knob connected to the control shaft of the stove heat source controller,
It is made of metal and is fitted with a knob-shaped knob body connected to the operating shaft, a metal plate member covering the outer end surface of the knob body, and a through hole formed in a portion near the outer periphery of the plate member. With fixed pins,
One end of the pin is exposed on the surface of the plate member to serve as an index, the other end portion of the pin protrudes from the back surface of the plate member, and the other end portion of the pin is in the engagement hole formed on the outer end surface of the knob body. An operation knob for a stove, which is inserted and the plate member is phased with respect to the knob body.   The stove operation knob according to claim 1, wherein the knob main body is plated, and the surface of the plate member is satin-finished.   The said pin is comprised by the parallel pin by which one end was chamfered, and a pin is fitted and fixed to the said through-hole so that the said one end may be exposed to the surface of the said board member, The said 1 or 2 characterized by the above-mentioned. The operation knob for the stove described. The stove operation knob according to any one of claims 1 to 3, wherein the stove operation knob is arranged on a top plate of the stove.

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