JP6910439B2 - Cooker - Google Patents

Description

The present invention relates to a cooker in which a cooker main body and a lid that closes the upper surface of the cooker main body form a cooker for cooking objects.

Conventionally, it is known that a cooking cooker has a main body of the cooking cooker and a lid body rotatably hinged to the main body of the cooking cooker. The cooker uses the internal space formed by the cooker body and the lid as the cooker for the food to be cooked, and is a heater installed inside the cooker body to plate or bake the food to be cooked. Cooking is done by heating a net or the like. For example, Patent Document 1 discloses a bread dough generator that bake bread dough by sandwiching bread dough in a heating cooking chamber formed between a pair of metal heating plates and heating these heating plates with a heater. ing. The back side of the pair of metal heating plates is hinged, and the heating cooking chamber can be opened by lifting the upper heating plate and rotating it to the back side.

Japanese Unexamined Patent Publication No. 2000-152879

For example, a heating cooker such as an oven toaster has a wide cooking space, but its airtightness is poor, so that when a food to be cooked such as bread is heated, the food to be cooked tends to dry. On the other hand, as represented by the bread baking generator disclosed in Patent Document 1, in a configuration in which a pair of heating plates are hingedly connected, the cooking space can be tightly sealed by the two heating plates, so that it is like an oven toaster. It is possible to secure airtightness as compared with a heating cooker. However, in this heating cooker, it is necessary to form a wide internal space on the lid side in order to make it easy to take out the cooked object, and the shape of the lid becomes large. Further, if a heating device is provided on the lid side separately from the main body of the cooking cooker to improve the efficiency of cooking, it is necessary to further increase the shape of the lid. Therefore, when the lid is rotated to open the cooking space, the opened lid may be closed by its own weight, and the user's hand may be caught between the cooker body and the lid. .. In addition, the change in the center of gravity due to the open lid may cause the cooking cooker body to tip over, which may lead to an unexpected situation.

The present invention has been made to solve the above problems, and even if the structure has both a wide cooking space and airtightness, the open lid can be closed or opened by its own weight. It is an object of the present invention to provide a cooking cooker that can be used safely and with peace of mind by preventing the main body of the cooking cooker from tipping over due to a change in the center of gravity due to the lid.

The heating cooker according to the present invention is rotatably attached to the heating cooker main body and the back side of the heating cooker main body via a hinge portion, and covers the upper part of the heating cooker main body to cover the heating cooker main body. A lid that forms a cooking chamber for the object to be cooked, a heating device that heats the cooking chamber, and a state in which the hinge portion is used as a rotation axis to cover the upper part of the heating cooker main body and open from a closed state. The lid is provided with a holding mechanism that holds the lid that rotates within the range of the above at a target rotation position, and the holding mechanism is attached to the outer peripheral surface of the hinge portion and is interlocked with the rotation of the hinge portion. It has a holding member that rotates in the same direction and a lock mechanism portion that is provided in parallel with the holding member and stops the rotation of the holding member. It has a plurality of convex portions formed at intervals along the circumferential direction of the hinge portion, and the lock mechanism portion can move up and down a fixed portion fitted between the adjacent convex portions and the fixed portion. It has an urging member that supports the fixing portion and presses the fixing portion toward the holding member, and the fixing portion pressed against the holding member by the urging member fits between the convex portions. The structure is such that the rotation of the holding member is stopped.

According to the heating cooker according to the present invention, since the holding mechanism for holding the lid rotating around the hinge portion as the rotation axis at the target rotation position is provided, the opened lid can be closed by its own weight. , It is possible to prevent the heating cooker body from tipping over due to a change in the center of gravity due to the open lid, and it can be used safely and with peace of mind.

It is an external perspective view of the cooking apparatus which concerns on Embodiment 1 of this invention. FIG. 5 is a schematic vertical cross-sectional view showing a state in which the lid is closed in the cooking cooker according to the first embodiment of the present invention. FIG. 5 is a schematic vertical cross-sectional view showing a step in the process of rotating the lid of the cooking cooker according to the first embodiment of the present invention. FIG. 5 is a schematic vertical cross-sectional view showing a state in which the heating cooker according to the first embodiment of the present invention is raised at a position of about 90 degrees by rotating the lid body. It is an enlarged sectional view of the main part which showed the holding mechanism of the cooking apparatus which concerns on Embodiment 1 of this invention. It is explanatory drawing which expanded and showed the shape of the convex part of the holding member of the heating cooker which concerns on Embodiment 1 of this invention. It is explanatory drawing which expanded and showed the shape of the convex part of the holding member of the heating cooker which concerns on Embodiment 1 of this invention. FIG. 5 is an enlarged cross-sectional view of a main part showing a state in which a lid is closed, which is a holding mechanism of a cooking cooker according to a second embodiment of the present invention. FIG. 5 is an enlarged cross-sectional view of a main part showing a state in which the holding mechanism of the cooking cooker according to the second embodiment of the present invention is a state in which the lid is rotated and raised at a position of about 30 degrees. FIG. 5 is an enlarged cross-sectional view of a main part showing a state in which the holding mechanism of the cooking cooker according to the second embodiment of the present invention is a state in which the lid is rotated and raised at a position of approximately 90 degrees. FIG. 5 is an enlarged cross-sectional view of a main part showing a state in which a lid is closed, which is a holding mechanism of a cooking cooker according to a third embodiment of the present invention. FIG. 5 is an enlarged cross-sectional view of a main part showing a state in which the holding mechanism of the cooking cooker according to the third embodiment of the present invention is a state in which the lid is rotated and raised at a position of about 90 degrees. FIG. 5 is an enlarged cross-sectional view of a main part showing a state of releasing a stopper member which is a holding mechanism of a cooking cooker according to a third embodiment of the present invention and which regulates vertical movement of a fixed portion of a lock mechanism portion. FIG. 5 is a schematic vertical cross-sectional view showing a state in which the lid is closed in the cooking cooker according to the fourth embodiment of the present invention. FIG. 5 is a schematic vertical cross-sectional view showing a state in which the lid is closed in the cooking cooker according to the fifth embodiment of the present invention. FIG. 5 is a schematic vertical cross-sectional view showing a state in which the lid is closed in the cooking cooker according to the sixth embodiment of the present invention. FIG. 5 is a schematic vertical cross-sectional view showing a state in which the heating cooker according to the sixth embodiment of the present invention is raised at a position of about 90 degrees by rotating the lid body.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Further, in the drawings below, the relationship between the sizes of the constituent members may differ from the actual one.

Embodiment 1.
First, the cooking cooker according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 7. FIG. 1 is an external perspective view of a cooking cooker according to a first embodiment of the present invention. FIG. 2 is a schematic vertical cross-sectional view showing a state in which the lid is closed in the cooking cooker according to the first embodiment of the present invention. FIG. 3 is a schematic vertical cross-sectional view showing a step in the process of rotating the lid of the cooking cooker according to the first embodiment of the present invention. FIG. 4 is a schematic vertical cross-sectional view showing a state of the cooking cooker according to the first embodiment of the present invention in which the lid is rotated and raised at a position of approximately 90 degrees. As shown in FIGS. 1 to 4, the cooking cooker 100 according to the first embodiment can be opened and closed via a cooking cooker main body 1 and a hinge portion 19 provided on the back side of the cooking cooker main body 1. It is provided with a lid 2 attached to the.

The inside of the heating cooker main body 1 is divided into an upper space and a lower space by a shielding plate 10. A heating plate 11, a bottom surface heating device 12, a heat insulating member 13, a heater holding plate 14, and a temperature detecting means 15 are provided in the upper space. The operation board 17 of the operation unit 16, the control unit 90, and the cord reel 91 are provided in the lower space.

Inside the lid 2, an inner housing 20, an upper surface heating device 21, a heat insulating member 22, a heater holding plate 23, a shielding plate 24, and a sealing member 25 are provided. A handle portion 26 is provided on the outer surface of the lid body 2.

The shielding plate 10 is for protecting the operation board 17, the control unit 90, and the cord reel 91 arranged in the lower space from high temperatures. As the shielding plate 10, for example, an aluminum-plated steel plate having high reflectance and high heat resistance temperature is suitable.

The heating plate 11 is provided on the upper surface of the heating cooker main body 1 on which an object to be cooked such as bread 30 is placed. The heating plate 11 is formed by press molding a plate material made of a metal having high thermal conductivity such as aluminum. The surface of the heating plate 11 may be flat or corrugated.

Further, the heating plate 11 is coated with a paint having high heat resistance and high emissivity. The paint is, for example, a silicone-based or fluorine-based heat-resistant paint. The paint may be a ceramic paint.

The bottom surface heating device 12 is provided on the lower surface side of the heating plate 11 and heats the object to be cooked 30 from below by heat conduction from the heating plate 11. The bottom surface heating device 12 is, for example, a planar heater, and is supported by a heater holding plate 14 fixed to the inner wall surface of the heating cooker main body 1. A heat insulating member 13 such as glass wool is provided between the bottom heating device 12 and the heater holding plate 14. Examples of the planar heater include a planar heater in which an electric heater is wound around a mica plate, and a ceramic heater formed by sandwiching an electric heater between ceramics. The bottom surface heating device 12 made of a planar heater can reduce the size of the heating cooker main body 1 and can uniformly heat the object to be cooked 30, so that uneven baking can be reduced.

The range in which the bottom surface heating device 12 is installed is about the same as the range in which the object to be cooked 30 can be placed. Further, a graphite sheet may be provided between the bottom surface heating device 12 and the heating plate 11 so that the thermal efficiency of the bottom surface heating device 12 can be increased and the heating efficiency can be increased.

The temperature detecting means 15 is provided on the lower surface side of the heating plate 11 and detects the temperature of the heating plate 11. The temperature detecting means 15 is a temperature sensor such as a thermistor. The temperature detecting means 15 is pressed against the lower surface of the heating plate 11 by an elastic body such as a spring. This is because the contact pressure with respect to the heating plate 11 is kept constant and the heating temperature is accurately detected.

The operation unit 16 receives an input operation related to the operation of the heating device. The operation unit 16 is provided on the front surface of the cooking cooker main body 1, and includes a mode switching button 16a, a baking color adjusting dial 16b, and a cooking start button 16c. Further, the operation unit 16 sets the cooking conditions by the operation of the user. However, the configuration of the operation unit 16 is not limited to the illustrated form.

The mode switching button 16a is for the user to set the "heating mode". Here, the "heating mode" includes, for example, "bread", "French toast", "bread with ingredients", "frozen bread", etc., and is set according to the type of the object to be cooked 30 to be cooked.

The baking color adjustment dial 16b sets the "baking color" of the object to be cooked 30 to be cooked by the user. Here, the "baked color" includes "dark", "normal", "light", and the like, and is set according to the preference of the user.

The cooking start button 16c is for starting cooking by the cooking device 100.

The operation board 17 is provided on the front side inside the cooking cooker main body 1, and is equipped with a circuit for processing a signal input from the operation unit 16. After processing the above signal, the operation board 17 is controlled. It is output to unit 90.

The control unit 90 is provided inside the heating cooker main body 1, and is attached to a power supply board (not shown) based on the input from the operation unit 16, that is, the "heating mode" and the "baking color" set by the user. It outputs a control signal. The control unit 90 can be configured by hardware such as a circuit device that realizes the function, or can be configured by a computing device such as a microcomputer and software that defines its operation.

The power supply board is provided on the back side inside the cooking cooker main body 1. The power supply board is equipped with a circuit for converting commercial power into high-frequency power and supplying it to the bottom surface heating device 12 and the top surface heating device 21. The power supply board is composed of components such as switching elements that make up an inverter circuit.

The cord reel 91 winds up a power cord connected to a commercial AC power supply, and is provided on the back side inside the cooking cooker main body 1. The cord reel 91 is provided so that the power cord does not get in the way when carrying the cooker 100. The cord reel 91 is arranged at a position in consideration of the position of the center of gravity so that the heating cooker main body 1 does not tip over when the lid 2 is opened. Instead of the cord reel 91, a magnet plug may be provided to connect the power cord, or the cord reel 91 may be provided and only the power cord may be used.

Further, on the upper surface of the heating cooker main body 1 and behind the heating plate 11, a main body upper frame 18 that rises toward the lid 2 is provided. A hinge portion 19 is provided in a space formed between the upper frame 18 of the main body and the back surface of the cooking cooker main body 1. The hinge portion 19 is made of a steel round bar extending along the left-right direction of the cooking cooker main body 1.

The lid 2 is rotatably attached to the cooker main body 1 via a hinge portion 19. The lid body 2 has an inner housing 20 whose inner central portion is recessed upward. The inner housing 20 is formed by drawing, for example, an aluminum-plated steel plate. The inner housing 20 is coated with a paint having high heat resistance and high emissivity. The paint is, for example, a ceramic paint or a silicone-based or fluorine-based heat-resistant paint. The inner housing 20 may be painted only on the inner surface side, or may be applied to both the inner surface and the outer surface. It is desirable that the lid body 2 is made of a resin having a high heat resistant temperature at a portion where the inner housing 20 contacts. The resin having a high heat resistant temperature is, for example, phenol, polybutylene terephthalate resin, polyethylene terephthalate resin, nylon or the like.

Inside the heating cooker 100, the heating cooking chamber 31 is formed by being surrounded by the heating plate 11 and the inner housing 20 in a state where the lid 2 is closed. The cooked object 30 is housed in the cooking chamber 31. Most of the cooking chamber 31 is formed by the inner housing 20 of the lid 2. This is to make it easier to take out the object to be cooked 30 placed on the heating plate 11 after cooking.

The upper surface heating device 21 is provided on the upper surface of the inner housing 20 and heats the cooking chamber 31 via the inner housing 20, and heats the object to be cooked 30 from above by the radiant heat from the inner housing 20. do. The top surface heating device 21 is, for example, a planar heater similar to the bottom surface heating device 12, and the upper surface is pressed and fixed by the heater pressing plate 23 fixed to the inner wall surface of the heating cooker main body 1. A heat insulating member 22 such as glass wool is provided between the top surface heating device 21 and the heater holding plate 23. Examples of the planar heater include a planar heater in which an electric heater is wound around a mica plate, and a ceramic heater formed by sandwiching an electric heater between ceramics. The bottom surface heating device 12 made of a planar heater can reduce the size of the heating cooker main body 1 and can uniformly heat the object to be cooked 30, so that uneven baking can be reduced.

The range in which the top surface heating device 21 is installed is about the same as the range in which the object to be cooked 30 can be placed. Further, the top surface heating device 21 may be provided with a graphite sheet on the surface on the heating plate 11 side. This is because the graphite sheet increases the thermal efficiency of the top surface heating device 21 and can increase the heating efficiency.

The shielding plate 24 is arranged above the heater holding plate 23, and is provided to protect the top surface of the lid 2 from the high temperature by the top surface heating device 21. As the shielding plate 24, for example, an aluminum-plated steel plate having high reflectance and high heat resistance temperature is suitable.

The seal member 25 is provided along the lower end of the side wall of the inner housing 20. The seal member 25 is provided in order to form a heating cooking chamber 31 having a high degree of airtightness by being in close contact with the peripheral edge of the heating plate 11 by the weight of the lid 2 when the lid 2 is closed. The sealing member 25 is made of a highly heat-resistant material such as silicone or fluororubber. The seal member 25 and the peripheral edge of the heating plate 11 may be brought into close contact with each other in a configuration in which the lid 2 is mechanically closed, for example, as in a latch mechanism.

The handle portion 26 is provided on the outer surface of the lid body 2 on the front surface side so as to project forward, and is gripped when the user rotates the lid body 2.

In the heating cooker 100 having the above configuration, when the lid 2 is rotated to open the heating cooking chamber 31, if the opened lid 2 is closed by its own weight, the cooker main body 1 and the cooker 1 There is a risk that the user's hand may get caught between the lid and the lid 2 and be injured. Further, when the lid body 2 is rotated to open the heating cooking chamber 31, the heating cooker main body 1 may fall backward due to the weight of the lid body 2, which may cause an unexpected situation. Therefore, the heating cooker 100 of the first embodiment is provided with a holding mechanism 3 that holds the lid 2 that rotates around the hinge portion 19 as a rotation axis at a target rotation position.

FIG. 5 is an enlarged cross-sectional view of a main part showing a holding mechanism of the cooking cooker according to the first embodiment of the present invention. As shown in FIG. 5, the holding mechanism 3 is attached so as to cover the outer peripheral surface of the hinge portion 19, and is a tubular holding member 4 that rotates in the same direction in conjunction with the rotation of the hinge portion 19. It has a lock mechanism portion 5 for stopping the rotation of the holding member 4. The holding mechanism 3 is provided on the upper surface of the support base 9 provided in the space formed between the upper frame 18 of the main body and the back surface of the cooking cooker main body 1. The support base 9 is provided with a step portion 9a in order to sandwich and fix the holding mechanism 3 from the front and back.

The hinge portion 19 is formed with a D-cut portion in which a circle is cut out in a straight line. The holding member 4 can be rotated in conjunction with the rotation of the hinge portion 19 by forming the inner surface of the holding member 4 into a shape that matches the D-cut portion of the hinge portion 19. Although not shown in detail, a key groove may be formed in the hinge portion 19 and the inner surface of the holding member 4 may be fitted in the key groove. Further, the hinge portion 19 and the holding member 4 may be joined by using a joining member such as a screw.

On the outer surface of the holding member 4, four convex portions 40 projecting outward are provided along the circumferential direction of the hinge portion 19. The convex portion 40 is provided on the outer surface of the holding member 4 in a region where the lid 2 can be held at a target rotation position by the holding member 4 whose rotation is stopped by the lock mechanism portion 5. Specifically, the convex portion 40 is provided at a position where the lid 2 can be held at approximately 30 degrees, approximately 60 degrees, and approximately 90 degrees. In the illustrated embodiment 1, a configuration in which four convex portions 40 are provided is shown, but the present invention is not limited to this. The number and position of the convex portions 40 shall be appropriately changed and provided according to the size or weight of the lid body 2.

It is assumed that the convex portion 40 is provided with the first top portion at a position where the lid body 2 is rotated 30% from the closed state with respect to the rotation range of the lid body 2. That is, the cooking cooker 100 is configured such that the lid 2 closes by its own weight in a rotation range smaller than 30% from the state where the lid 2 is closed. This is because there is no possibility that the user's hand is caught between the heating cooker main body 1 and the lid body 2, and the convenience is enhanced by the configuration in which the lid body 2 is closed by its own weight when the lid body 2 is closed to some extent.

6 and 7 are explanatory views showing an enlarged view of the shape of the convex portion of the holding member of the cooking cooker according to the first embodiment of the present invention. As shown in FIGS. 6 and 7, in the convex portion 40, the inclination angle θ1 of the inclined surface from the front side to the top is smaller than the inclination angle θ2 of the inclined surface from the back side to the top. As shown in FIG. 6, by reducing the inclination angle θ1 of the inclined surface from the front side toward the top, when opening the lid 2, the load due to the convex portion 40 is reduced, and the lid 2 can be easily opened. be able to. On the other hand, as shown in FIG. 7, by increasing the inclination angle θ2 of the inclined surface from the back surface side toward the top, it is possible to prevent the lid body 2 from being inadvertently closed. The inclination angle θ1 is, for example, about 20 to 30 degrees. The inclination angle θ2 is, for example, about 45 to 60 degrees.

As shown in FIG. 5, the lock mechanism portion 5 supports the fixing portion 50 fitted between the adjacent convex portions 40 and the convex portion 40 so as to be movable up and down, and holds the fixing portion 50 as a holding member 4. It has an urging member 51 that presses toward the surface. The fixing portion 50 pressed against the holding member 4 by the urging member 51 fits between the adjacent convex portion 40 and the convex portion 40 to stop the rotation of the holding member 4. The force for stopping the rotation of the holding member 4 by the urging member 51 is larger than the force for rotating the lid 2 in the closing direction by its own weight.

The fixing portion 50 is composed of a protrusion 50a that fits between the adjacent protrusions 40 and the protrusion 40, and a storage portion 50b that is provided below the protrusion 50a and houses the urging member 51. The urging member 51 is, for example, a spring material, and the upper end portion is attached to the storage portion 50b and the lower end portion is attached to the support base 9. The urging member 51 is not limited to the spring material shown in the figure, and may be an elastic member such as a rubber material.

In the cooking cooker 100 of the first embodiment, when the lid 2 is opened from the closed state and rotated upward toward the back surface side, the first convex portion 40 becomes the protruding portion 50a as shown in FIG. bump into. Then, the protrusion 50a is repeatedly moved up and down while being urged by the urging member 51, and the protrusion 40 is overcome in order, and as shown in FIG. 4, the lock is locked at a position rotated by approximately 90 degrees. The fixing portion 50 of the mechanical portion 5 fits between the convex portions 40 of the holding member 4. Since the holding member 4 is fixed at that position by the fixing portion 50 urged by the urging member 51, the hinge portion 19 is also fixed at that position, and the position of the lid 2 can be held. In addition, in FIG. 3, the configuration in which the lid body 2 is opened and held at a position of 90 degrees has been described, but by fitting the lid body 2 between the convex portion 40 and the convex portion 40 provided at the intermediate position, the lid body 2 is fitted. For example, it can be held at a position of about 30 degrees or about 60 degrees.

When the lid body 2 is rotated downward from the open state shown in FIG. 4 toward the front surface side, the convex portions 40 sequentially get over the protrusions 50a, and as shown in FIG. 3, the last convex portion When the portion 40 gets over the protrusion 50a, it closes due to its own weight.

As described above, the heating cooker 100 of the first embodiment includes a holding mechanism 3 for holding the lid 2 rotating around the hinge portion 19 as a rotation axis at a target rotation position, and thus a wide range of heating cooking is performed. Even with a structure that achieves both space and airtightness, it prevents the open lid 2 from closing by its own weight and the cooker body 1 from tipping over due to a change in the center of gravity due to the open lid 2. It can be used safely and with peace of mind.

Further, the holding mechanism 3 is attached to the outer peripheral surface of the hinge portion 19, and the holding member 4 that rotates in the same direction in conjunction with the rotation of the hinge portion 19 and the lock mechanism portion 5 that stops the rotation of the holding member 4. And have. The holding member 4 has a plurality of convex portions 40 that protrude outward and are formed at intervals along the circumferential direction of the hinge portion 19. The lock mechanism portion 5 includes a fixing portion 50 that fits between adjacent convex portions 40, and an urging member 51 that supports the fixing portion 50 so as to be vertically movable and presses the fixing portion 50 toward the holding member 4. ing. Therefore, since the holding mechanism 3 of the heating cooker 100 of the first embodiment has a small number of members and a simple structure, it can contribute to the reduction of manufacturing cost.

Further, the convex portion 40 has a configuration in which the inclination angle θ1 of the inclined surface from the front surface side toward the top is smaller than the inclination angle θ2 of the inclined surface from the back surface side toward the top. That is, in the cooking cooker 100 of the first embodiment, the load due to the convex portion 40 is reduced when the lid 2 is opened by reducing the inclination angle θ1 of the inclined surface from the front side toward the top, and the lid. The body 2 can be easily opened. On the other hand, by increasing the inclination angle θ2 of the inclined surface from the back surface side toward the top, it is possible to prevent the lid body 2 from being inadvertently closed.

Further, the convex portion 40 is provided with the first top portion at a position where the lid body 2 is rotated 30% from the closed state with respect to the rotation range of the lid body 2. That is, when the lid 2 is closed, the heating cooker 100 of the first embodiment closes due to its own weight when the top of the convex portion 40 gets over the protrusion 50a of the fixed portion 50 and the lid 2 closes to some extent. Therefore, convenience can be improved.

Embodiment 2.
Next, the cooking cooker according to the second embodiment of the present invention will be described with reference to FIGS. 8 to 10. FIG. 8 is an enlarged cross-sectional view of a main part showing a state in which the lid is closed, which is a holding mechanism of the cooking cooker according to the second embodiment of the present invention. FIG. 9 is an enlarged cross-sectional view of a main part showing a state in which the holding mechanism of the cooking cooker according to the second embodiment of the present invention is a state in which the lid is rotated and raised at a position of about 30 degrees. FIG. 10 is an enlarged cross-sectional view of a main part showing a state in which the holding mechanism of the cooking cooker according to the second embodiment of the present invention is a state in which the lid is rotated and raised at a position of approximately 90 degrees.

In the cooking cooker 100 according to the second embodiment, the configuration of the holding mechanism 3 is different from that of the first embodiment. Since the other structures other than the holding mechanism 3 have the same configuration as that of the first embodiment, the same reference numerals are given and the description thereof will be omitted as appropriate. As shown in FIG. 8, the holding mechanism 3 of the heating cooker 100 according to the second embodiment is also attached to the outer peripheral surface of the hinge portion 19 and is held to rotate in the same direction in conjunction with the rotation of the hinge portion 19. It has a member 4 and a lock mechanism portion 5 for stopping the rotation of the holding member 4.

The holding member 4 has a convex portion 41 in which the thickness in the radial direction is gradually increased along the circumferential direction and a step portion 41a is formed at the terminal portion. The lock mechanism portion 5 is composed of a fixing portion 50 that abuts on the convex portion 41 and an urging member 51 that supports the fixing portion 50 so as to be vertically movable and presses the fixing portion 50 toward the holding member 4. .. The configuration of the lock mechanism unit 5 is the same as the configuration described in the first embodiment.

As shown in FIG. 8, the convex portion 41 is formed so that the protrusion 50a of the fixing portion 50 of the lock mechanism portion 5 is located at the step portion 41a when the lid 2 is closed. Further, as shown in FIG. 10, the convex portion 41 is formed so that the pressure contact with the fixing portion 50 is released when the lid body 2 is rotated by approximately 90 degrees. It is preferable that the convex portion 40 is provided with the first top portion at a position where the lid body 2 is rotated 30% from the closed state with respect to the rotation range of the lid body 2. This is because the convenience is enhanced by the configuration in which the lid 2 is closed by its own weight when the lid 2 is closed to some extent.

In the cooking cooker 100 of the second embodiment, when the lid 2 shown in FIG. 8 is rotated from the closed state to the opening direction, the fixing portion 50 gets over the stepped portion 41a and is attached as shown in FIG. The force member 51 presses against the convex portion 41 of the holding member 4. That is, the heating cooker 100 has a configuration in which the fixing portion 50 of the lock mechanism portion 5 is pressed against the convex portion 41 to stop the rotation of the holding member 4 and hold the lid 2 at the target rotation position. .. As shown in FIG. 10, when the lid body 2 is rotated by approximately 90 degrees, the pressure contact of the fixing portion 50 is released, but the convex portion 41 restricts the rotation of the lid body 2 in the closing direction, so that the lid body 2 is opened. The lid 2 does not close by its own weight.

Therefore, the heating cooker 100 of the second embodiment also has a holding mechanism 3 that holds the lid 2 that rotates about the hinge portion 19 as the rotation axis at the target rotation position, so that the open lid 2 can be opened. It is possible to prevent the heating cooker main body 1 from tipping over due to a change in the center of gravity due to the lid 2 being opened or being closed by its own weight, and it can be used safely and with peace of mind.

Embodiment 3.
Next, the cooking cooker 100 according to the third embodiment of the present invention will be described with reference to FIGS. 11 to 13. FIG. 11 is an enlarged cross-sectional view of a main part showing a state in which the lid is closed, which is a holding mechanism of the cooking cooker according to the third embodiment of the present invention. FIG. 12 is an enlarged cross-sectional view of a main part showing a state in which the holding mechanism of the cooking cooker according to the third embodiment of the present invention is a state in which the lid is rotated and raised at a position of approximately 90 degrees. FIG. 13 is an enlarged cross-sectional view of a main part showing a state in which the stopper member that regulates the vertical movement of the fixed portion of the lock mechanism portion, which is the holding mechanism of the cooking cooker according to the third embodiment of the present invention, is released. ..

In the cooking cooker 100 according to the third embodiment, the configuration of the holding mechanism 3 is different from that of the first and second embodiments. Since the other structures other than the holding mechanism 3 have the same configurations as those of the first and second embodiments, the same reference numerals are given and the description thereof will be omitted as appropriate. As shown in FIG. 11, the holding mechanism 3 of the heating cooker 100 according to the third embodiment is also attached to the outer peripheral surface of the hinge portion 19 and is held to rotate in the same direction in conjunction with the rotation of the hinge portion 19. It has a member 4 and a lock mechanism portion 5 for stopping the rotation of the holding member 4.

One recess 42 is formed on the outer surface of the holding member 4. As shown in FIG. 12, the recess 42 is formed at a position where the lock mechanism portion 5 can hold the lid 2 that has been rotated and raised at approximately 90 degrees.

The lock mechanism portion 5 has a fixing portion 50 that fits into the recess 42, and an urging member 51 that supports the fixing portion 50 so as to be vertically movable and presses the fixing portion 50 toward the holding member 4. The fixing portion 50 pressed against the holding member 4 by the urging member 51 fits into the recess 42 to stop the rotation of the holding member 4.

The fixing portion 50 is composed of a protrusion 50a that fits into the recess 42 and a storage portion 50b that is provided below the protrusion 50a and houses the urging member 51. The urging member 51 is, for example, a spring material or the like, and the upper end portion is attached to the storage portion 50b and the lower end portion is attached to the support base 9. The urging member 51 is not limited to the spring material shown in the figure, and may be an elastic member such as a rubber material.

Further, the lock mechanism portion 5 is provided with a stopper member 52 that regulates the vertical movement of the fixing portion 50. As shown in FIG. 12, the stopper member 52 slidably protrudes from the outer surface of the storage portion 50b toward the step portion 9a of the support base 9, and is fitted into the through hole 9b formed in the step portion 9a to be fixed. The vertical movement of the part 50 is regulated. As shown in FIG. 13, the stopper member 52 fitted into the through hole 9b is separated from the through hole 9b by inserting, for example, a pin 9c into the through hole 9b, and the regulation of the fixing portion 50 is released. Two or more stopper members 52 may be provided along the left-right direction of the cooking cooker main body 1.

Therefore, the heating cooker 100 of the third embodiment also has a holding mechanism 3 that holds the lid 2 that rotates about the hinge portion 19 as the rotation axis at the target rotation position, so that the open lid 2 can be opened. It is possible to prevent the heating cooker main body 1 from tipping over due to a change in the center of gravity due to the lid 2 being opened or being closed by its own weight, and it can be used safely and with peace of mind.

Although not shown in detail, the lock mechanism portion 5 of the cooking cooker 100 according to the first and second embodiments may be provided with a stopper member 52 that regulates the vertical movement of the fixing portion 50.

Embodiment 4.
Next, the cooking cooker 100 according to the fourth embodiment of the present invention will be described with reference to FIG. FIG. 14 is a schematic vertical cross-sectional view showing a state in which the lid is closed in the cooking cooker according to the fourth embodiment of the present invention.

In the cooking cooker 100 according to the fourth embodiment, the configuration of the holding mechanism 3 is different from that of the first to third embodiments. Since the other structures other than the holding mechanism 3 have the same configurations as those in the first to third embodiments, the same reference numerals are given and the description thereof will be omitted as appropriate. As shown in FIG. 14, the holding mechanism 3 of the heating cooker 100 according to the fourth embodiment is also attached to the outer peripheral surface of the hinge portion 19, and is held to rotate in the same direction in conjunction with the rotation of the hinge portion 19. It has a member 4 and a lock mechanism portion 5 for stopping the rotation of the holding member 4.

The outer peripheral surface of the holding member 4 has a gear shape. On the other hand, the lock mechanism portion 5 has a gear shape whose outer peripheral surface meshes with the gear shape of the holding member 4. Further, inside the cooking cooker main body 1, a power mechanism 6 is provided as a means for rotating the lock mechanism portion 5. The power mechanism 6 is composed of, for example, a motor or the like, and is controlled by the control unit 90 by the operation input of the operation unit 16. A rotating shaft 60 connected to the lock mechanism portion 5 is attached to the power mechanism 6. That is, the power mechanism 6 has a configuration in which power is transmitted to the lock mechanism portion 5 via a rotating shaft 60 that is rotated by driving a motor.

In the cooking cooker 100 according to the fourth embodiment, the holding member 4 rotates in conjunction with the lock mechanism portion 5 rotated by the drive of the power mechanism 6, and the hinge rotates by the rotation of the holding member 4. The lid body 2 is automatically opened and closed by the portion 19. The holding mechanism 3 stops the power mechanism 6 by the operation of the operation unit 16, stops the rotation of the holding member 4, and holds the lid 2 at the target rotation position.

Here, the control unit 90 drives the power mechanism 6 in the direction of closing the lid 2 when it is determined that the cooking is started by the operation of the operation unit 16 by the user. On the other hand, the control unit 90 stops heating by the bottom surface heating device 12 and the top surface heating device 21, which are heating means, and when it is determined that the heating cooking is completed, drives the power mechanism 6 in the direction of opening the lid 2. These are intended to improve the convenience of the user.

Therefore, the heating cooker 100 of the fourth embodiment also has a holding mechanism 3 that holds the lid 2 that rotates about the hinge portion 19 as the rotation axis at the target rotation position, so that the open lid 2 can be opened. It is possible to prevent the heating cooker main body 1 from tipping over due to a change in the center of gravity due to the lid 2 being opened or being closed by its own weight, and it can be used safely and with peace of mind.

Embodiment 5.
Next, the cooking apparatus according to the fifth embodiment of the present invention will be described with reference to FIG. FIG. 15 is a schematic vertical cross-sectional view showing a state in which the lid is closed in the cooking cooker according to the fifth embodiment of the present invention. The same configurations as those of the cooking cookers described in the first to fourth embodiments are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

In addition to the configuration of the heating cooker 100 of the fourth embodiment, the heating cooker 100 according to the fifth embodiment includes a foreign matter detecting means 7 for detecting the presence or absence of a foreign matter 32 that hinders the opening / closing operation of the lid 2. It is characterized by having. The foreign matter detecting means 7 is composed of, for example, a pressure sensitive sensor. In the illustrated example, the foreign matter detecting means 7 is provided inside the lid 2 on the front side and the back side of the cooking cooker 100, respectively, and is formed on the upper surface of the cooking cooker main body 1 and the lower surface of the lid 2. The presence or absence of the foreign matter 32 sandwiched between the two is detected.

When the control unit 90 determines that the foreign matter 32 is sandwiched between the upper surface of the cooking cooker main body 1 and the lower surface of the lid 2 based on the detection information of the foreign matter detecting means 7, the control unit 90 stops driving the power mechanism 6. Control to do. Therefore, in the heating cooker 100 according to the fifth embodiment, although the foreign matter 32 that hinders the opening / closing operation of the lid 2 is present, the user does not notice it and drives the power mechanism 6. Damage caused by forcibly opening and closing the lid 2 can be prevented.

Embodiment 6.
Next, the cooking cooker according to the sixth embodiment of the present invention will be described with reference to FIGS. 16 and 17. FIG. 16 is a schematic vertical cross-sectional view showing a state in which the lid is closed in the cooking cooker according to the sixth embodiment of the present invention. FIG. 17 is a schematic vertical cross-sectional view showing a state of the cooking cooker according to the sixth embodiment of the present invention in which the lid is rotated and raised at a position of approximately 90 degrees. The same configurations as those of the cooking cookers described in the first to fifth embodiments are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

The cooker 100 according to the sixth embodiment is linked to the open lid 2 on the back side of the cooker main body 1 in addition to the configuration of the cooker 100 described in the first to fifth embodiments. It is characterized in that it is provided with an auxiliary leg 8 that protrudes toward the installation surface. Note that FIGS. 16 and 17 show a cooking cooker provided with the holding mechanism 3 described in the first embodiment as an example.

As shown in FIGS. 16 and 17, the auxiliary legs 8 have a rod-shaped leg 80 extending in the height direction of the cooking cooker main body 1 and the legs 80 can be moved up and down in the height direction of the cooking cooker main body 1. It is provided with an elastic member 81 that supports the vehicle. The auxiliary legs 8 are housed in a storage case 82 provided on the back side of the cooking cooker main body 1. The upper and lower surfaces of the storage case 82 have openings so that the upper and lower ends of the legs 80 can be exposed to the outside. A flange portion 80a protruding outward along the circumferential direction is provided on the outer peripheral surface of the leg portion 80. The elastic member 81 is, for example, a spring material, is arranged between the flange portion 80a and the bottom surface in the storage case 82, and is provided so as to urge the leg portion 80 toward the lid body 2.

As shown in FIG. 16, the auxiliary leg 8 has the upper end portion of the leg portion 80 exposed to the outside from the upper surface of the storage case 82 and the lower end portion of the leg portion 80 of the storage case 82 in the state where the lid 2 is closed. It is provided so that it fits inside. As shown in FIG. 17, the auxiliary leg 8 has the upper end portion of the leg portion 80 downward due to the pushing portion 27 provided on the outer surface of the back surface side of the lid body 2 and projecting outward when the lid body 2 is opened. It is pushed in so that the lower end portion protrudes from the storage case 82 and comes into contact with the installation surface.

Therefore, the heating cooker 100 according to the sixth embodiment is provided with an auxiliary leg 8 that protrudes toward the installation surface in conjunction with the open lid 2 on the back side of the heating cooker main body 1 and is therefore open. Even if the position of the center of gravity is changed by the lid body 2, the lid body 2 can be firmly held by the auxiliary leg 8. Therefore, the cooking cooker 100 can surely prevent the cooking cooker main body 1 from tipping over, and can be used safely and with peace of mind.

Further, the auxiliary legs 8 include a rod-shaped leg portion 80 extending in the height direction of the cooking cooker main body 1 and an elastic member 81 supporting the leg portion 80 so as to be vertically movable in the height direction of the heating cooker main body 1. Since it is composed of and has a simple structure with a small number of members, it can contribute to the reduction of manufacturing cost.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the configuration of the above-described embodiments. For example, the configuration of the illustrated cooking cooker 100 is an example and is not limited to the above-mentioned contents, and the cooking cooker including other components can be similarly implemented. In short, it should be added that the gist (technical scope) of the present invention also includes various modifications, applications, and uses made by those skilled in the art as necessary.

1 Heat cooker body, 2 lid, 3 holding mechanism, 4 holding member, 5 lock mechanism, 6
Power mechanism, 7 Foreign matter detection means, 8 Auxiliary legs, 9 Support base, 9a Stepped part, 9b Through hole, 9c pin, 10 Shielding plate, 11 Heating plate, 12 Bottom heating device, 13 Insulation member, 14 Heater holding plate, 15 Temperature detection means, 16 operation unit, 16a mode switching button, 16b baking color adjustment dial, 16c cooking start button, 17 operation board, 18
Main body upper frame, 19 hinge part, 20 inner housing, 21 top surface heating device, 22 heat insulating member, 23 heater holding plate, 24 shielding plate, 25 sealing member, 26 handle part, 27 pushing part, 30 cooked food, 31 Cooking room, 32 foreign matter, 40, 41 convex part, 41a stepped part, 42 concave part, 50 fixed part, 50a protruding part, 50b storage part, 51 urging member, 52 stopper member, 60 rotating shaft, 80 legs, 80a Flange part, 81 elastic member, 82 storage case, 90 control part, 91 cord reel, 100 cooker.

Claims (11)

The main body of the cooking cooker and
A lid that is rotatably attached to the back side of the cooker body via a hinge portion, covers the upper part of the cooker body, and forms a cooking chamber for the object to be cooked together with the cooker body.
A heating device that heats the cooking room and
It is provided with a holding mechanism that covers the upper part of the cooking cooker body with the hinge portion as a rotation axis and holds the lid body that rotates in a range from a closed state to an open state at a target rotation position.
The holding mechanism is
A holding member attached to the outer peripheral surface of the hinge portion and rotating in the same direction in conjunction with the rotation of the hinge portion.
It has a lock mechanism portion that is provided in parallel with the holding member and stops the rotation of the holding member.
The holding member has a plurality of convex portions that protrude outward and are formed at intervals along the circumferential direction of the hinge portion.
The lock mechanism portion includes a fixing portion that fits between the adjacent convex portions, and an urging member that supports the fixing portion so as to be vertically movable and presses the fixing portion toward the holding member. ,
A cooking cooker having a structure in which the fixing portion pressed against the holding member by the urging member fits between the convex portions to stop the rotation of the holding member. The heating cooker according to claim 1, wherein the convex portion has a configuration in which the inclination angle of the inclined surface from the front side to the top is smaller than the inclination angle of the inclined surface from the back side to the top. The main body of the cooking cooker and
A lid that is rotatably attached to the back side of the cooker body via a hinge portion, covers the upper part of the cooker body, and forms a cooking chamber for the object to be cooked together with the cooker body.
A heating device that heats the cooking room and
It is provided with a holding mechanism that covers the upper part of the cooking cooker body with the hinge portion as a rotation axis and holds the lid body that rotates in a range from a closed state to an open state at a target rotation position.
The holding mechanism is
A holding member attached to the outer peripheral surface of the hinge portion and rotating in the same direction in conjunction with the rotation of the hinge portion.
It has a lock mechanism portion that is provided in parallel with the holding member and stops the rotation of the holding member.
The holding member has a convex portion in which the thickness in the radial direction is gradually increased in the circumferential direction from the outer diameter of the holding member and a step portion is formed at the end portion.
The lock mechanism portion has a fixing portion that abuts on the convex portion and an urging member that supports the fixing portion so as to be vertically movable and presses the fixing portion toward the holding member.
A cooking cooker having a configuration in which the fixed portion of the lock mechanism portion is pressed against the convex portion to stop the rotation of the holding member. Any one of claims 1 to 3, wherein the convex portion is provided with the first top portion at a position where the lid body is rotated 30% from the closed state with respect to the rotation range of the lid body. The cooker described in the section. The main body of the cooking cooker and
A lid that is rotatably attached to the back side of the cooker body via a hinge portion, covers the upper part of the cooker body, and forms a cooking chamber for the object to be cooked together with the cooker body.
A heating device that heats the cooking room and
It is provided with a holding mechanism that covers the upper part of the cooking cooker body with the hinge portion as a rotation axis and holds the lid body that rotates in a range from a closed state to an open state at a target rotation position.
The holding mechanism is
A holding member attached to the outer peripheral surface of the hinge portion and rotating in the same direction in conjunction with the rotation of the hinge portion.
It has a lock mechanism portion that is provided in parallel with the holding member and stops the rotation of the holding member.
A recess is formed on the outer surface of the holding member.
The lock mechanism portion has a fixing portion that fits into the recess, and an urging member that supports the fixing portion so as to be vertically movable and presses the fixing portion toward the holding member.
A cooking cooker having a structure in which the fixing portion pressed against the holding member by the urging member fits into the recess to stop the rotation of the holding member. The cooker according to any one of claims 1 to 5, wherein the lock mechanism portion includes a stopper member that regulates the vertical movement of the fixed portion. The main body of the cooking cooker and
A lid that is rotatably attached to the back side of the cooker body via a hinge portion, covers the upper part of the cooker body, and forms a cooking chamber for the object to be cooked together with the cooker body.
A heating device that heats the cooking room and
A holding mechanism that covers the upper part of the cooking cooker body with the hinge portion as a rotation axis and holds the lid body that rotates in a range from a closed state to an open state at a target rotation position.
An operation unit that accepts input operations related to the operation of the heating device, and
A control unit that controls the heating device and the holding mechanism based on the input of the operation unit, and
A foreign matter detecting means that is sandwiched between the cooking cooker main body and the lid and detects the presence or absence of a foreign matter that hinders the opening / closing operation of the lid is provided.
The holding mechanism is
A holding member attached to the outer peripheral surface of the hinge portion and rotating in the same direction in conjunction with the rotation of the hinge portion.
A lock mechanism unit provided in parallel with the holding member to stop the rotation of the holding member,
It has a power mechanism that drives the lock mechanism unit by operating the operation unit.
The outer peripheral surface of the holding member has a gear shape.
The lock mechanism portion has a gear shape whose outer peripheral surface meshes with the gear shape of the holding member.
The holding member rotates in conjunction with the lock mechanism portion rotated by the power mechanism, and when the power mechanism stops, the rotation of the holding member is stopped and the lid body is moved to a target rotation position. It is configured to be held by
The control unit is a heating cooker having a configuration in which control for stopping the power mechanism is performed based on the detection information of the foreign matter detecting means. The heating cooker according to claim 7, wherein the control unit drives the power mechanism in a direction of closing the lid when it is determined that cooking is started by operating the operation unit. The heating cooker according to claim 7 or 8, wherein the control unit is configured to stop heating by the heating device and drive the power mechanism in a direction of opening the lid when it is determined that the heating cooking is completed. .. The cooking cooker according to any one of claims 1 to 9, wherein an auxiliary leg that is interlocked with the opened lid and protrudes toward the installation surface is provided on the back side of the cooking cooker main body. .. The auxiliary leg includes a rod-shaped leg portion extending in the height direction of the cooker body, and an elastic member supporting the leg portion so as to be vertically movable in the height direction of the cooker body. , The heating cooker according to claim 10.

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