Cooking apparatus

Abstract

A cooking apparatus according to an embodiment comprises: a housing; a heating source provided in the housing; a control panel coupled to the housing; a knob mounted on the control panel to operate the heating source and configured to be movable toward the control panel; and a locking device disposed between the knob and the control panel and provided to prevent the knob from rotating, wherein the locking device includes a first locking member and a second locking member configured to rotate by pressurization of the knob, thereby locking with the first locking member or unlocking therefrom.

Description

Cooking appliances

[0001] The present disclosure relates to a cooking appliance comprising a knob.

[0002] Generally, a cooking appliance is a household appliance equipped with a cooking chamber, a heating device that applies heat to the cooking chamber, and a circulation device that circulates the heat generated by the heating device within the cooking chamber. As a device that cooks food by sealing and heating it, a cooking appliance can generally be classified into electric, gas, or electronic types depending on the heat source of the heating device. For example, an electric oven uses heat from an electric heater as its heat source, a gas oven uses heat from gas as its heat source, and a microwave oven can utilize the frictional heat of water molecules generated by high frequency as its heat source.

[0003] A control panel may be provided on either the front side or the top of the main body of the cooking appliance. The control panel may be provided with a number of buttons, keypads, and / or knobs, etc., configured to allow the user to set a desired cooking mode or set various conditions necessary for cooking.

[0004] The control device for controlling the heating device can be operated in a push-and-turn manner. A knob provided to operate the control device presses the control shaft of the control device as it is pressed, and then the operation of the cooking appliance can be controlled by a mechanism in which the knob rotates.

[0005] Meanwhile, if the user unintentionally pressurizes and rotates the knob, the heating device may operate, causing a fire or burns to the user.

[0006] One aspect of the present disclosure can provide a cooking appliance capable of preventing malfunction of a knob.

[0007] One aspect of the present disclosure can provide a cooking appliance that can prevent burns and fire caused by a malfunction of a knob.

[0008] The technical problems to be solved in this disclosure are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art to which this disclosure belongs from the description below.

[0009] A cooking device according to the concept of the present disclosure comprises a housing, a heating source provided in the housing, a control panel coupled to the housing, a knob mounted on the control panel to operate the heating source and configured to be movable toward the control panel, and a locking device disposed between the knob and the control panel and provided to prevent rotation of the knob, wherein the locking device comprises a first locking member and a second locking member provided to rotate by pressure of the knob to lock or unlock with the first locking member.

[0010] A cooking device according to one embodiment comprises a housing, a heating source provided on one side of the housing, a control panel covering a front portion of the housing, and a knob assembly mounted on the control panel to operate the heating source, wherein the knob assembly comprises a knob rotatably mounted on the control panel and configured to be movable backward, a locking pin rotatably movable between a first position that locks the rotation of the knob and a second position that unlocks the rotation of the knob in conjunction with the backward movement of the knob, and a stopper comprising a stopper groove in which the locking pin is received at the first position that locks the rotation of the knob.

[0011] According to the concept of the present disclosure, malfunction of the knob can be prevented.

[0012] According to the concept of the present disclosure, burns and fires caused by the malfunction of the knob can be prevented.

[0013] According to the concept of the present disclosure, knob malfunction can be prevented by the action of pressing and rotating the knob.

[0014] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure belongs.

[0015] Figure 1 is a perspective view of a cooking appliance according to an example.

[0016] Figure 2 is a front view of a cooking appliance according to an example.

[0017] FIG. 3 is an exploded perspective view of a knob assembly in a cooking appliance according to an example.

[0018] FIG. 4 is a perspective view of a knob assembly according to an example.

[0019] FIG. 5 is an exploded perspective view showing the locking device of the knob assembly illustrated in FIG. 4.

[0020] FIG. 6 is a cross-sectional view showing the locking state of a knob by a locking device according to an example.

[0021] FIG. 7 is a drawing showing the locking state of the locking device illustrated in FIG. 6.

[0022] FIG. 8 is a cross-sectional view showing the unlocked state of a knob by a locking device according to an example.

[0023] FIG. 9 is a drawing showing the unlocked state of the locking device illustrated in FIG. 8.

[0024] The embodiments described in this disclosure and the configurations illustrated in the drawings are merely preferred examples of the disclosure, and various modifications that may replace the embodiments and drawings of this disclosure may exist at the time of filing this application.

[0025] Additionally, the same reference numerals or symbols presented in each drawing of the present disclosure represent parts or components that perform substantially the same function.

[0026] Furthermore, the terms used in this disclosure are for describing embodiments and are not intended to limit or restrict the disclosure. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this disclosure, terms such as "comprising" or "having" are intended to specify the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the disclosure, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0027] Additionally, in the present disclosure, each of the phrases such as “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B or C”, “at least one of A, B and C”, and “at least one of A, B, or C” may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0028] Additionally, the term "and / or" includes a combination of multiple related described components or any of the multiple related described components.

[0029] Additionally, terms including ordinal numbers, such as "first," "second," etc., used in this disclosure may be used to describe various components, but said components are not limited by said terms, and said terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of this disclosure, the first component may be named the second component, and similarly, the second component may be named the first component. The term "and / or" includes a combination of a plurality of related described items or any of a plurality of related described items.

[0030] Furthermore, in this disclosure, the meaning of "identical" includes items that are similar in attributes or similar within a certain range. Additionally, "identical" means "substantially identical." The meaning of "substantially identical" should be understood as including within the scope of "identical" numerical values ​​that fall within the margin of error in manufacturing or differences that do not hold significance relative to a reference value.

[0031] In addition, terms such as "~part," "~unit," "~block," "~part," and "~module" may refer to a unit that processes at least one function or operation. For example, the above terms may refer to at least one piece of hardware such as an FPGA (field-programmable gate array) or ASIC (application specific integrated circuit), at least one piece of software stored in memory, or at least one process processed by a processor.

[0032] Meanwhile, terms such as "front," "rear," "left," and "right" used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms.

[0033] Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the attached drawings.

[0034] FIG. 1 is a perspective view of a cooking appliance according to one embodiment. FIG. 2 is a front view of a cooking appliance according to one embodiment.

[0035] Referring to FIGS. 1 and 2, a cooking device (1) according to one embodiment includes a housing (10).

[0036] The housing (10) may include an outer housing (12) and an inner housing (11). The inner housing (11) and the outer housing (12) may each have a roughly box shape with an open front.

[0037] The cooking device (1) may include a cooktop (30) that is positioned on the top of the housing (10) and can place a container containing food on it to heat. The cooktop (30) may be equipped with at least one heating element (90a). A container containing food can be placed within the heating element (90a) and heated directly.

[0038] The cooking device (1) may include a door (50) provided at the front of the housing (10) to open and close the cooking chamber (20). For example, the door (50) may open and close the opening (13a) of the front panel (13).

[0039] The housing (10) may include a front panel (13) forming the front of the housing (10), a side panel (14) forming the side of the outer housing (12), and a rear panel (15) forming the rear of the housing (10).

[0040] An opening (13a) is provided in the front panel (13), and a cooking chamber (20) provided inside the housing (10) can be opened and closed by the opening (13a).

[0041] A cooking device according to one embodiment may further include a control panel (41). The control panel (41) may be positioned on the upper part of the housing (10). The control panel (41) may be provided with a knob assembly (100) for operating a heating source (90). A detailed description of the configuration of the knob assembly (100) will be provided later.

[0042] A display module (60) that displays operation information of the cooking device (1) may be combined with and / or mounted on the control panel (41). The control panel (41) is located on the upper part of the front panel (13) and can cover the front of the electrical room (40).

[0043] The control panel (41) may be disposed on at least a portion of the housing (10). According to one embodiment, the control panel (41) may be disposed on one side of the front of the housing (10). However, it is not limited thereto, and the control panel (41) may be disposed on the upper surface of the housing (10) or form one side of the housing (10).

[0044] The control panel (41) may be a component included in the housing (10).

[0045] The cooking chamber (20) can be formed by an upper plate (21), a bottom plate (22), two side plates (23), and a rear plate (24). The cooking chamber (20) is a cooking space, and the front is open through the opening (13a) of the front panel (13) to allow food to be fed in and out.

[0046] A plurality of supports (25) may be provided on the inner surface of both side plates (23). At least one detachable rack (26) on which food can be placed may be mounted on the plurality of supports (25).

[0047] A rail (not shown) may be installed on a plurality of supports (25) to allow the rack (26) to slide. The user can move the rack (26) along the rail (not shown) to take out or place food.

[0048] A divider (not shown) capable of dividing the cooking chamber (20) into multiple parts may be detachably mounted on a plurality of supports (25). The cooking chambers (20) divided into multiple parts by the divider do not have to be of the same size, and each part may have a different size.

[0049] Through this, the user can utilize the space of the cooking room (20), which is divided into multiple sections according to their intention, in various ways. The divider is made of an insulating material so that each cooking room (20) can be insulated.

[0050] A heater (90b) for heating food may be provided in the cooking chamber (20). The heater (90b) may be an electric heater containing an electric resistor. However, the heater (90b) is not limited thereto and may be a gas heater that generates heat by burning gas. That is, the cooking appliance (1) may include an electric oven and a gas oven.

[0051] The cooking device (1) may include a heating source (90). The heating source (90) may be configured to heat the food being cooked.

[0052] The heating source (90) may include the previously mentioned heating part (90a) and heater (90b).

[0053] Although not shown, the rear plate (15) of the cooking chamber (20) may be provided with a circulation fan that circulates air in the cooking chamber (20) to heat food evenly, and a circulation motor that drives the circulation fan. A fan cover (28a) that covers the circulation fan may be provided on the front of the circulation fan, and an outlet hole (28b) that allows air to flow may be formed in the fan cover (28a).

[0054] The front of the cooking chamber (20) is opened and closed by a door (50), and the door (50) can be connected to the housing (10) by a hinge (51) provided at the bottom of the housing (10) so as to be rotatable relative to the housing (10).

[0055] A handle (52) that a user grasps to open and close the door (50) to the cooking chamber (20) may be provided at the front upper part of the door (50).

[0056] A display module (60) that displays various operation information of the cooking device (1) and allows the user to input operation commands can be mounted on a control panel (41) provided on the front upper part of the front panel (13).

[0057] The display module (60) may include a display. For example, the display may display electrical information as start information. The display may include a display panel that displays an image and a light source device that supplies light to the display panel.

[0058] The display module (60) may include a cover panel (61) provided in front of the display panel. For example, the cover panel (61) may be a protective panel for protecting the display panel. For example, the cover panel (61) may be a touch panel capable of receiving touch commands from a user.

[0059] A knob assembly (100) capable of operating a cooking device (1) may be provided on the control panel (41). The knob assembly (100) may be coupled to and / or fastened to the control panel (41).

[0060] According to one embodiment, four knob assemblies (100) may be provided. However, this is not limited thereto. For example, the number of knob assemblies (100) may be changed depending on the cooking appliance (1).

[0061] FIG. 3 is an exploded perspective view of a knob assembly in a cooking appliance according to one example, FIG. 4 is a perspective view of a knob assembly according to one example, and FIG. 5 is an exploded perspective view showing a locking device of the knob assembly shown in FIG. 4.

[0062] As illustrated in FIGS. 3 to 5, the knob assembly (100) may include a knob (110).

[0063] The knob (110) may be provided in the housing (10). The knob (110) may be provided at the front of the housing (10). The knob (110) may be provided in the control panel (41). The knob (110) may be positioned at the front of the control panel (41).

[0064] The cooking appliance (1) may include a reinforcing plate (42). For example, a reinforcing plate (42) may be provided on a control panel (41) on which a knob (110) is mounted. For example, the reinforcing plate (42) may be positioned between the control panel (41) and the knob (110) to reinforce the rigidity of the cooking appliance (1). For example, the reinforcing plate (42) may be made of glass.

[0065] The reinforcing plate (42) may be provided with an installation portion (43) so that a knob assembly (100) can be installed. For example, the installation portion (43) may be provided so that at least a part of the knob assembly (100) can be inserted. For example, the installation portion (43) may be provided so that a stopper cover (130), which will be described later, can be inserted.

[0066] The control panel (41) may include a plurality of holes (44a, 44b, 44c). The plurality of holes (44a, 44b, 44c) of the control panel (41) may be positioned to correspond to the installation portion (43) of the reinforcing plate (42). At least some of the plurality of holes (44a, 44b, 44c) may be arranged so that at least a part of the knob assembly (100) is coupled. At least some of the plurality of holes (44a, 44b, 44c) may be arranged so that a fastening member, etc., for coupling the configuration of the knob assembly (100) is coupled. At least some of the plurality of holes (44a, 44b, 44c) may be arranged so that at least a part of the regulator (300) described later is coupled. For example, the first hole (44a) among the plurality of holes (44a, 44b, 44c) may be arranged so that the shaft (400) described later passes through it. For example, among the plurality of holes (44a, 44b, 44c), the second hole (44b) may be provided so that at least a part of the regulator (300) passes through and is coupled. For example, among the plurality of holes (44a, 44b, 44c), the third hole (44c) may be provided so that a stopper cover (130), which will be described later, is coupled thereto. A detailed description of the configuration of the stopper cover (130) will be provided later.

[0067] The cooking device (1) may include a regulator (300). The regulator (300) may be positioned behind the control panel (41). The regulator (300) may operate a heating source in response to the rotation of the knob (110). For example, the regulator (300) may be configured to transmit an electrical signal to a processor (not shown) to operate the heating source (90). For example, the regulator (300) may include a case (301) forming an exterior. For example, the regulator (300) may include a shaft (400). For example, the shaft (400) may be configured to be rotatable relative to the case (301) of the regulator (300). The shaft (400) may be provided to extend in one direction. For example, the shaft (400) may be provided to extend from the inside to the outside of the case (301). For example, the regulator (300) may be a component included in the knob assembly (100). For example, the shaft (400) of the regulator (300) may be arranged to be connected to at least a part of the knob assembly (100). For example, the shaft (400) of the regulator (300) may be arranged to be connected to the knob (110) of the knob assembly (100).

[0068] The knob (110) may be provided so that a user can grasp and rotate it. For example, the knob (110) is rotatably provided on the control panel (41) so that a user can grasp and rotate it.

[0069] The knob (110) may be rotatably provided relative to the control panel (41). The knob (110) may be rotatably provided with the shaft (400) described later as an axis. For example, a user can operate the heating source (90) of the cooking appliance (1) by rotating the knob (110).

[0070] The knob (110) may be provided to be movable in a first direction (-X direction). For example, the first direction (-X direction) may be a direction from front to rear. For example, the knob (110) may be provided to be movable toward the control panel (41). For example, the direction in which the knob (110) moves toward the control panel (41) may be the first direction (-X direction). For example, the first direction (-X direction) may be the direction in which the user presses the knob (110) backward. For example, the first direction (-X direction) may be the direction in which the user presses the knob (110) toward the control panel (41).

[0071] The knob (110) may include a first knob (111) which is rotatably provided with respect to the control panel (41). For example, the first knob (111) is rotatably provided with respect to the control panel (41) so that a user can grasp and rotate it. For example, the first knob (111) may be provided so that a user can grasp and rotate it.

[0072] The knob (110) may include a second knob (112) provided in front of the first knob (111). The second knob (112) may be provided to cover the front of the first knob (111). The second knob (112) may be provided separately from the first knob (111). The second knob (112) may support the first knob (111) so that it can move. The second knob (112) may support the first knob (111) so that it can move. The second knob (112) may be provided in front of the first knob (111) so that the second knob (112) can move in a first direction (-X direction). For example, the second knob (112) may be provided to be movable relative to the first knob (111). For example, the second knob (112) can support the second knob (112) so that the first knob (111) can move relative to the first direction (-X direction).

[0073] The knob assembly (100) may include a knob cover (120). The knob cover (120) may be provided to be coupled to the knob (110). The knob cover (120) may be coupled to the rear of the knob (110). The knob cover (120) may be provided to be coupled to the first knob (111) and the second knob (112). The knob cover (120) may be provided to be coupled to the rear of the first knob (111) and the second knob (112).

[0074] An elastic member (140) may be provided between the knob cover (120) and the knob (110). The elastic member (140) may be positioned between the knob (110) and the knob cover (120) to provide elastic support for the knob (110). The elastic member (140) may be provided to provide elastic support between the first knob (111) and the knob cover (120). For example, the elastic member (140) may be provided to provide elastic support for the first knob (111) moving in a first direction (-X) against the knob cover (120). The elastic member (140) may include a first elastic member (141) and a second elastic member (142). In one embodiment, two elastic members are provided as an example, but the number and / or size and / or installation location of the elastic members may be changed.

[0075] The knob cover (120) may be provided in a roughly circular shape. The knob cover (120) may include a roughly circular knob cover body (120a). The knob cover body (120a) may be provided to correspond to the knob (110). The knob cover body (120a) may be provided to correspond to the first knob (111). The knob cover body (120a) may be provided to correspond to the first knob (111) so that the first knob (111) can be coupled. The knob cover (120) may be provided with a shaft coupling part (123) for coupling a shaft (400) at the center. The knob cover (120) may include an elastic member installation part (124) provided to accommodate an elastic member (140). For example, the elastic member installation part (124) may be provided in a cylindrical shape so that an elastic member (140) can be accommodated inside. For example, the elastic member installation part (124) may be provided on the left and right sides of the knob cover body (120a). For example, the elastic member installation part (124) may be provided on the left and right sides centered on the shaft coupling part (123). For example, the elastic member installation part (124) is illustrated as having a first elastic member (141) installed on one side and a second elastic member (142) installed on the other side in a left-right symmetrical manner, but is not limited thereto.

[0076] The knob cover (120) may be provided so that at least a part of the locking device (200), which will be described later, is installed. For example, the knob cover (120) may be provided with a locking pin installation part (122) so that at least a part of the locking device (200) is rotatably installed. For example, the knob cover (120) may be provided with a moving hole (121) so that at least a part of the locking pin (220) is movable. A detailed description of the configuration of the knob cover (120) will be provided later.

[0077] The knob assembly (100) may include a stopper cover (130). The stopper cover (130) may be provided to connect the knob assembly (100) to the control panel (41). The stopper cover (130) may be connected to the mounting portion (43) of the control panel (41). For example, the stopper cover (130) may be connected to the third hole (44c) of the control panel (41).

[0078] The stopper cover (130) may include a roughly circular stopper cover body (131). The stopper cover body (131) may be provided to correspond to the installation portion (43) of the control panel (41). A shaft through-hole (133) may be provided in the center of the stopper cover body (131) so that a shaft (400) can pass through it. The shaft through-hole (133) may be provided so that at least a part of the shaft (400) and / or regulator (300) can pass through it and be coupled with the stopper cover (130). A coupling projection (132) for coupling to the control panel (41) may be provided on the bottom surface of the stopper cover body (131). The coupling projection (132) may be provided to be coupled to the third hole (44c) of the control panel (41).

[0079] The stopper cover (130) may be provided with a stopper coupling portion (134) to which at least a portion of the locking device (200) described later is coupled. For example, the stopper coupling portion (134) may be provided around the shaft through-hole (133). For example, the stopper coupling portion (134) may be provided at an upper or lower position of the shaft through-hole (133). For example, the stopper coupling portion (134) may be provided adjacent to the shaft through-hole (133).

[0080] The cooking appliance (1) may include a locking device (200) for preventing malfunction of the knob (110) by simple rotation by locking and / or unlocking the rotation of the knob (110). For example, the cooking appliance (1) may include a locking device (200) for locking and / or unlocking the knob (110) to prevent rotation of the knob (110).

[0081] The locking device (200) can be operated in conjunction with the movement of the knob (110) in the first direction (-X direction). The locking device (200) may include a first locking member (210) and a second locking member (220) provided to lock or unlock with the first locking member (210) by rotating by the movement of the knob (110) in the first direction (-X direction). For example, the locking device (200) may include a second locking member (220) provided to lock or unlock with the first locking member (210) by the pressure of the knob (110). For example, the locking device (200) may include a locking pin (220) provided to rotate by the movement of the knob (110) in the first direction (-X direction). For example, the locking device (200) may include a stopper (210) having a stopper groove (218) into which a locking pin (220) that rotates by moving the knob (110) in the first direction (-X direction) is coupled.

[0082] The first locking member (210) of the locking device (200) may include a stopper (210). The first locking member (210) may be provided to lock or unlock the second locking member (220). The first locking member (210) is referred to as the stopper (210) below. The stopper (210) may include a stopper groove (218) provided to allow the second locking member (220) to be locked or unlocked.

[0083] The stopper (210) may be positioned between the knob cover (120) and the stopper cover (130). The stopper (210) may be provided to be coupled to the stopper coupling portion (134) of the stopper cover (130). The stopper (210) may include a circular stopper body (211). A coupling projection (213) may be provided at the bottom of the stopper body (211) to be inserted into and / or coupled to the stopper coupling portion (134) of the stopper cover (130). The coupling projection (213) may be provided to correspond to the stopper coupling portion (134).

[0084] The stopper body (211) may be provided in a roughly ring shape. The stopper body (211) may be provided with a stopper through-hole (212) formed through the center. The stopper through-hole (212) may be provided to correspond to the shaft through-hole (133) of the stopper cover (130). The shaft (400) may pass through the stopper through-hole (212) and the shaft through-hole (133).

[0085] The stopper (210) may include a stopper groove guide (217) provided on the inner side of the stopper body (211). The stopper groove guide (217) may be formed protruding on the inner side of the circumference of the stopper body (211). The stopper groove guide (217) may be provided to form a stopper groove (218) that allows the second locking member (220) to be locked or unlocked.

[0086] The stopper groove (218) may be provided on the inner circumference of the stopper body (211). The stopper groove (218) may be formed by a stopper groove guide (217) that protrudes inwardly from the circumference of the stopper body (211), which is approximately ring-shaped. The stopper groove guide (217) may be formed symmetrically on both sides so that the stopper groove (218) is formed in the center.

[0087] The stopper groove (218) may be formed by being recessed into the center of the stopper groove guide (217). For example, the stopper groove (218) may be formed by being recessed outward from the center of the stopper (210). For example, the stopper groove (218) may be formed by being recessed outward from the center of the stopper body (211). For example, the stopper groove (218) may be provided so that a first locking member (210) moving outward from the center of the stopper (210) and / or from the outside inward to the center may be locked or unlocked. For example, the stopper groove (218) may be formed in the radial direction of the stopper (210). For example, the stopper groove (218) may be formed by being recessed in the second direction (-Z direction). For example, the stopper groove (218) may be formed by being recessed downward. For example, the second direction (-Z direction) can be the downward direction.

[0088] The second locking member (220) of the locking device (200) may include a locking pin (220). The second locking member (220) may be provided to be locked or unlocked to the first locking member (210). The second locking member (220) is referred to as the locking pin (220) below. The locking pin (220) may be provided to be locked or unlocked to the stopper (210).

[0089] A locking pin (220) may be provided in a knob (110) and a knob cover (120). For example, at least a portion of the locking pin (220) may be coupled to the knob (110). For example, at least a portion of the locking pin (220) may be coupled to the first knob (111). For example, at least a portion of the locking pin (220) may be coupled to the knob cover (120).

[0090] The knob (110) may include a rack gear (118) to which a locking pin (220) is coupled. The rack gear (118) may be provided on at least a portion of the inner side of the knob (110). The rack gear (118) may be provided on the first knob (111). The rack gear (118) may be provided on the first knob (111) which is movable in a first direction (-X direction). The rack gear (118) may be provided extending in the first direction (-X direction) on at least a portion of the first knob (111). The rack gear (118) may be provided on the inner lower side of the first knob (111).

[0091] The first knob (111) may include a first part (111a) and a second part (111b) provided as an extension of the first part (111a). The second part (111b) may be provided as an extension above the first part (111a). The first part (111a) may be provided to be coupled with a knob cover (120). The second part (111b) may be provided to be coupled with a second knob (112). A rack gear (118) may be provided in the first part (111a). For example, a rack gear (118) may be provided in the first part (111a) so that a locking pin (220) of a locking device (200) is coupled thereto. An elastic member support part (113) may be provided in the second part (111b) so that an elastic member (140) is supported therein. For example, in the second part (111b), an elastic member support (113) may be provided so that an elastic member (140) installed in the elastic member installation part (124) of the knob cover (120) is coupled thereto.

[0092] The second knob (112) can be coupled to the second part (111b) of the first knob (111). The second knob (112) may include a second knob body (112a) that is provided to be insertable into the inner side of the second part (111b) of the first knob (111). The second knob body (112a) may be provided in a roughly cylindrical shape. A support groove (112b) may be provided at the inner center of the upper surface of the second knob body (112a). The support groove (112b) may be provided so that the second knob (112) is coupled to the shaft coupling part (123) of the knob cover (120). The second knob (112) may be coupled to the knob cover (120) by the support groove (112b). The second knob (112) may be provided to support the first knob (111) so that it can move stably in the first direction (-X direction).

[0093] A locking pin (220) may be provided to be coupled to a knob cover (120). The locking pin (220) may be rotatably coupled to a locking pin installation portion (122) of a cover body (120). For example, a rotational axis portion (223) for rotatably supporting the locking pin (220) may be provided at both ends of the locking pin (220). The rotational axis portion (223) of the locking pin (220) may be rotatably coupled to a locking pin installation portion (122) of a knob cover (120). The locking pin (220) may be rotated around the rotational axis portion (223).

[0094] The locking pin (220) may include a pinion (221) and a locking bar (222) extending from the pinion (221). A rotational shaft portion (223) may be provided at both ends of the pinion (221). The locking pin (220) may rotate around the rotational shaft portion (223) provided at both ends of the pinion (221).

[0095] The locking bar (222) may be formed extending to one side of the pinion (221). The locking bar (222) may be provided to be movable by the rotation of the pinion (221). The locking bar (222) may be provided to be movable along the moving hole (121) of the knob cover (120). The moving hole (121) may be formed at a position corresponding to the stopper groove (218) of the stopper (210). One side of the moving hole (121) may be positioned corresponding to the stopper groove (218).

[0096] The locking bar (222), which moves along the moving hole (121) of the knob cover (120), can be inserted into the stopper groove (218) of the stopper (210) or moved to a position spaced apart from the stopper groove (218).

[0097] FIG. 6 is a cross-sectional view showing the locked state of a knob by a locking device according to an example, FIG. 7 is a drawing showing the locked state of the locking device illustrated in FIG. 6, FIG. 8 is a cross-sectional view showing the unlocked state of a knob by a locking device according to an example, and FIG. 9 is a drawing showing the unlocked state of the locking device illustrated in FIG. 8. In the following, descriptions of parts that overlap with the above descriptions are omitted.

[0098] As illustrated in FIGS. 6 to 9, the locking device (200) may be configured to lock or unlock the rotation of the knob (110). The locking device (200) may be operated by the movement of the knob (110) in a first direction (-X).

[0099] FIGS. 6 to 7 show the locking state of the knob (110).

[0100] The locking state of the locking device (200) is such that the knob (110) is in a state where the first knob (111) and the second knob (112) are not moved.

[0101] In the locked state of the locking device (200), the pinion (221) of the locking pin (220) is engaged with the rack gear (118) of the first knob (111). For example, the pinion (221) of the locking pin (220) and the locking bar (222) are not rotated. For example, the locking pin (220) is in a state where it is in a first position (P1). For example, the locking bar (222) of the locking pin (220) is in a state where it is in a state where it is in a first position (P1). For example, the locking bar (222) of the locking pin (220) is coupled to the stopper (210). For example, the locking bar (222) of the locking pin (220) is inserted into the stopper groove (218) of the stopper (210). For example, when the locking bar (222) of the locking pin (220) is inserted into the stopper groove (218) of the stopper (210), the knob (110) is in a locked state. For example, when the locking bar (222) of the locking pin (220) is inserted into the stopper groove (218) of the stopper (210), the knob (110) cannot be rotated.

[0102] FIGS. 8 and 9 show the unlocked state of the knob (110).

[0103] The unlocked state of the locking device (200) is a state in which the first knob (111) of the knobs (110) is pressed in the first direction (-X direction). For example, the first knob (111) is in a state in which it has moved a first length (l1) in the first direction (-X direction). For example, the first knob (111) is in a state in which it has moved a first length (l1) in the first direction (-X direction) relative to the second knob (112).

[0104] When the first knob (111) is pressed and moved a first length (l1) in the first direction (-X direction), the pinion (221) of the locking pin (220) engaged with the rack gear (118) of the first knob (111) rotates around the rotation axis portion (223).

[0105] When the locking pin (220) rotates, the locking bar (222) extended on the pinion (221) rotates counterclockwise (CCW). The locking bar (222) moves along the moving hole (121) of the knob cover (120). The locking bar (222) moves to a position spaced apart from the stopper groove (218) of the stopper (210). As the locking bar (222) moves to a position spaced apart from the stopper groove (218), the locking device (200) becomes unlocked.

[0106] For example, the unlocked state of the locking device (200) is a state in which the locking pin (220) is rotated. For example, the pinion (221) and the locking bar (222) of the locking pin (220) are rotated. For example, the locking pin (220) is in a state in which it is positioned at a second position (P2). For example, the locking bar (222) of the locking pin (220) is in a state in which it is released from the stopper (210). For example, the locking bar (222) of the locking pin (220) is moved from the stopper groove (218) of the stopper (210). For example, when the locking bar (222) of the locking pin (220) is moved out of the stopper groove (218) of the stopper (210), the knob (110) is in an unlocked state. For example, when the locking bar (222) of the locking pin (220) is positioned at a second position (P2) spaced apart from the stopper groove (218) of the stopper (210), the knob (110) can be rotated.

[0107] A cooking device (1) according to one embodiment comprises: a housing (10); a heating source (90) provided in the housing; a control panel (41) coupled to the housing; a knob (110) mounted on the control panel (41) to operate the heating source (90) and configured to be movable toward the control panel (41); and a locking device (200) disposed between the knob (110) and the control panel (41) and provided to prevent rotation of the knob (110). The locking device (200) comprises a first locking member (210) and a second locking member (220) provided to rotate by pressure of the knob (110) to lock or unlock with the first locking member (210). According to the present disclosure, malfunction of the knob (110) can be prevented by the locking device (200).

[0108] The second locking member (220) may include a locking pin (220) that is rotatable between a first position (P1) that locks the rotation of the knob (110) and a second position (P2) that unlocks the rotation of the knob.

[0109] The first locking member (210) may include a stopper groove (218) in which the locking pin (220) is received at a first position (P1) that locks the rotation of the knob (110). The first locking member (210) may be moved so that the locking pin (220) is separated from the stopper groove (218) at a second position (P2) that unlocks the rotation of the knob (110). While the knob (110) is being pressed, the locking pin (220) may be rotated from the first position (P1) to the second position (P2) and separated from the stopper groove (218).

[0110] In this way, locking malfunction can be prevented by a locking device that locks and / or unlocks the rotation of the knob (110).

[0111] The first locking member (210) may include a stopper (210) that is positioned between the knob (110) and the control panel (41) and has the stopper groove (218) formed therein.

[0112] The knob (110) includes a rack gear (118) provided in at least a portion, and the locking pin (220) may include a pinion (221) that meshes with the rack gear (118) and a locking bar (222) that is rotated by the pinion (221).

[0113] The knob (110) includes a knob cover (120) positioned between the knob and the stopper (210), and the knob cover (120) may include a moving hole (121) formed to allow the locking bar (222) to pass through and move.

[0114] The knob (110) may include an elastic member (140) provided to elastically support the space between the knob cover (120). The knob cover (120) may include an elastic member installation part (124) provided to install the elastic member (140). The knob cover (120) may include a locking pin installation part (122) provided to install the locking pin (220).

[0115] The knob (110) may include a first knob (111) configured to be movable toward the control panel (41), and a second knob (112) provided in front of the first knob (111) and coupled with the knob cover (120).

[0116] The elastic member (140) can be placed between the first knob (111) and the knob cover (120).

[0117] The first knob (111) may include an elastic member support portion (113) provided to support the elastic member (140).

[0118] The control panel (41) covers a portion of the front of the housing, and the cooking device (1) may include a regulator (300) positioned at the rear of the control panel to operate the heating source (90) by the rotation of the knob (110).

[0119] A cooking device (1) according to one embodiment comprises: a housing (10); a heating source (90) provided on one side of the housing; a control panel (41) covering a front portion of the housing; and a knob assembly (100) mounted on the control panel to operate the heating source. The knob assembly (100) may include: a knob (110) rotatably mounted on the control panel (41) and configured to be movable backward; a locking pin (220) rotatably movable between a first position (P1) that locks the rotation of the knob (110) and a second position (P2) that unlocks the rotation of the knob (110) in conjunction with the backward movement of the knob (110); and a stopper (210) including a stopper groove (218) in which the locking pin (220) is received at the first position (P1) that locks the rotation of the knob (110). According to the concept of the present disclosure, malfunction of the knob can be prevented.

[0120] The locking pin (220) is received in the stopper groove (218) to lock the rotation of the knob (110) at the first position (P1), and can be moved from the stopper groove (218) to unlock the rotation of the knob (110) at the second position (P2).

[0121] The knob (110) includes a rack gear (118) provided in at least a portion, and the locking pin (220) may include a pinion (221) that meshes with the rack gear (118) and a locking bar (222) that is rotated by the pinion (221).

[0122] The knob (110) includes a knob cover (120) positioned between the knob and the stopper (210), and the knob cover (120) may include a moving hole (121) formed to allow the locking bar (222) to pass through and move.

[0123] The knob (110) may include an elastic member (140) provided to elastically support the space between it and the knob cover (120).

[0124] Specific embodiments have been illustrated and described above. However, the invention is not limited to the embodiments described above, and a person skilled in the art to which the disclosure pertains may make various modifications without departing from the gist of the technical concept of the disclosure as described in the following claims.

Claims

1. Housing; A heating source provided in the above housing; A control panel coupled to the above housing; A knob mounted on the control panel to operate the heating source and configured to be movable toward the control panel; It includes a locking device disposed between the knob and the control panel and configured to prevent rotation of the knob, The above locking device is, The first locking member and, A cooking appliance comprising a second locking member arranged to rotate by the pressure of the above knob to lock or unlock with the first locking member.

2. In Paragraph 1, The above second locking member is, A cooking appliance comprising a locking pin rotatable between a first position that locks the rotation of the knob and a second position that unlocks the rotation of the knob.

3. In Paragraph 2, The first locking member above is, A cooking appliance comprising a stopper groove in which the locking pin is received at a first position that locks the rotation of the knob.

4. In Paragraph 3, The first locking member above is, A cooking appliance in which the locking pin moves away from the stopper groove at a second position that unlocks the rotation of the knob.

5. In Paragraph 3, A cooking appliance in which, while the knob is pressed, the locking pin rotates from the first position to the second position and disengages from the stopper groove.

6. In Paragraph 5, The first locking member above is, A cooking appliance comprising a stopper disposed between the knob and the control panel, wherein the stopper groove is formed.

7. In Paragraph 2, The above knob includes a rack gear provided in at least a part, and The above locking pin is, A pinion that meshes with the above rack gear, and A cooking appliance comprising a locking bar rotated by the above pinion.

8. In Paragraph 7, The above knob includes a knob cover disposed between it and the stopper, and The above knob cover is a cooking appliance comprising a movable hole formed to allow the locking bar to pass through and move.

9. In Paragraph 8, A cooking appliance comprising an elastic member provided to elastically support the knob between the knob and the knob cover.

10. In Paragraph 9, The above knob cover is a cooking appliance comprising an elastic member installation portion provided to install the elastic member.

11. In Paragraph 8, The above knob cover is a cooking appliance comprising a locking pin installation portion provided for installing the locking pin.

12. In Paragraph 9, The above knob is, A first knob configured to be movable toward the above control panel, and A cooking appliance comprising a second knob provided in front of the first knob and coupled to the knob cover.

13. In Paragraph 12, The above elastic member is a cooking appliance disposed between the first knob and the knob cover.

14. In Paragraph 13, The above first knob is a cooking appliance comprising an elastic member support portion provided to support the elastic member.

15. In Paragraph 1, The above control panel covers a front portion of the housing, and The above cooking appliance is, A cooking appliance comprising a regulator positioned at the rear of the control panel to operate the heating source by the rotation of the above knob.

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