Cooking appliance

Abstract

A cooking appliance according to an embodiment of the present disclosure comprises: a cavity forming a cooking chamber on the inside; a casing surrounding at least a portion of the cavity; and a height adjustment mechanism screw-coupled to the casing, wherein the height adjustment mechanism includes: a screw leg positioned outside the casing; a screw head positioned inside the casing; and a screw body which connects the screw leg and the screw head, passes through the casing, and has screw threads formed on the outer circumferential surface.

Description

Cooking appliances

[0001]

[0002] The present disclosure relates to a cooking appliance, and more specifically, to a cooking appliance in which the height of the casing can be easily adjusted both during the initial installation and after a certain period of use, and the height adjustment mechanism is not exposed to the outside when the door is opened.

[0003] Various cooking appliances are being distributed, such as microwave ovens using microwaves, ovens using heaters, and cooktops.

[0004] Microwave ovens heat food by irradiating microwaves generated by a magnetron into a sealed cooking chamber to vibrate the water molecules of the food stored inside, while ovens heat food stored inside a cooking chamber by using a heater to heat the sealed cooking chamber.

[0005] In addition, cooking appliances are trending toward diversifying their functions, and cooking appliances are being developed that perform functions previously performed by two or more separate appliances in a single appliance.

[0006] The casing of such a cooking appliance can be fixed to the house in a built-in manner, or it can be supplied to consumers as a separate product and installed at a location desired by the user within the house.

[0007] FIG. 1 is a perspective view showing an example of a cooking appliance according to the prior art, and FIG. 2 is a front view of FIG. 1.

[0008] A cooking device (1) according to the prior art includes a casing (10) having a cavity (S) which is a cooking space for cooking food. A door (20) that opens and closes the cavity (S) via a lower hinge pivoting connector (30) may be provided at the front end of the casing (10). The lower end of the door (20) is connected to the hinge pivoting connector (30), and the upper end rotates forward relative to the hinge pivoting connector (30) to open and close the cavity (S).

[0009] Depending on the specifications, the door (20) may be equipped with a control panel (not shown) for cooking food in the cavity (S), and a wire harness (not shown) for electrical connection between the casing (10) and the control panel (not shown) provided in the door (20) may be disposed in the hinge pivot connector (30) portion.

[0010] However, the cooking device (1) according to the prior art has a problem in that when the door (20) for opening the cavity (S) is opened, the hinge pivoting connector (30) with a complex structure including a wire harness is exposed to the user, which spoils the aesthetics of the product.

[0011] In addition, the cooking device (1) according to the prior art has a problem in that foreign substances such as oil generated from the food being cooked accumulate on the wire harness as well as the hinge pivot connector (30) even when the door (20) for closing the cavity (S) for cooking food is closed, requiring periodic cleaning.

[0012] In particular, when the cooking appliance (1) is provided as a built-in type, the product cannot be moved during cleaning, which leads to the problem of the cleaning time becoming longer.

[0013] A cooking device (1) according to the prior art has a problem in that foreign substances such as oil generated from the food being cooked accumulate on the wire harness as well as the hinge pivot connector (30) even when the door (20) for closing the cavity (S) for cooking food is closed, requiring periodic cleaning.

[0014] In the case of Patent Document 1, when the cooking appliance is installed as a built-in unit, there is no separate height adjustment device, so there is a problem in that it is difficult to adjust the height of the cooking appliance, such as the installer having to take the cooking appliance out again to adjust the height.

[0015] [Prior Art Literature]

[0016] [Patent Literature]

[0017] Patent Document 1 - Patent Publication No. 1020210145971

[0018]

[0019] The problem that the present disclosure aims to solve is to provide a cooking appliance that allows the installation height of the cooking appliance to be easily adjusted through a height adjustment mechanism.

[0020] Another objective of the present disclosure is to provide a cooking appliance that opens a door and easily adjusts the height of the cooking appliance inside a casing.

[0021] Another objective of the present disclosure is to provide a cooking appliance that conceals a height adjustment mechanism when the door is opened.

[0022] Another objective of the present disclosure is to provide a cooking appliance that can conceal a hinge pivot connector and a wire harness when the door is opened and closed.

[0023] Another objective of the present disclosure is to provide a cooking appliance that can be cleaned to facilitate the removal of foreign substances, such as oil, by the user.

[0024] Another objective of the present disclosure is to provide a cooking appliance that can automatically cover a hinge pivot connector, a wire harness, and a height adjustment mechanism in conjunction with the opening and closing of a door.

[0025] The problems of the present disclosure are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

[0026] To achieve the above objective, a cooking device according to one embodiment of the present disclosure comprises a cavity forming a cooking chamber inside, a casing surrounding at least a portion of the cavity, and a height adjustment mechanism screw-coupled to the casing, wherein the height adjustment mechanism comprises a screw leg located outside the casing, a screw head located inside the casing, and a screw body connecting the screw leg and the screw head, penetrating the casing, and having screw threads formed on its outer surface.

[0027] The above casing includes an opening that is open in one direction, and the height adjustment mechanism can be coupled to one side of the casing adjacent to the edge of the opening.

[0028] The above casing includes an upper surface and a lower surface facing each other, two sides facing each other and connecting the upper surface and the lower surface, and a rear surface connecting the upper surface, the lower surface and the two sides, and the height adjustment mechanism can be coupled to the lower surface of the casing.

[0029] The above casing further includes a front panel covering at least the space between the casing and the cavity, and the height adjustment mechanism can be coupled to the front panel.

[0030] Additionally, the present disclosure may further include a wire harness that accommodates a door hinged to the casing to open and close the cavity and a member electrically connecting the door and the casing.

[0031] The height adjustment mechanism can be installed by penetrating the wire harness.

[0032] The wire harness may include a body hole through which the screw body passes and a head groove in which the screw head is seated.

[0033] A head handle that enhances gripping force may be formed on the screw head above.

[0034] The screw head may have a mechanism groove formed therein to which a rotating mechanism for rotating the screw head is coupled.

[0035] Additionally, one embodiment of the present disclosure may further include a concealed cover that is withdrawn from the cavity side when the door is opened and drawn into the cavity side when the door is closed.

[0036] The above concealed cover can cover the height adjustment mechanism when the door is opened and expose the height adjustment mechanism when the door is closed.

[0037] When the above door is opened, a portion of the lower part of the above door may be covered by the above concealment cover.

[0038] When the above door is closed, the above concealment cover may be positioned so as not to overlap with the door in the vertical direction.

[0039] When the above door is closed, the above concealed cover may be positioned in a location that does not overlap with the height adjustment mechanism in the vertical direction.

[0040] When the above door is closed, the door may be positioned to overlap with at least a part of the height adjustment mechanism in the vertical direction.

[0041] The above concealed cover can be moved by an elastic member provided inside the casing.

[0042] The above concealed cover may include a fixed cover fixed to the casing and a moving cover that moves relative to the fixed cover by the expansion and restoring force of the elastic member.

[0043] The above moving cover may include a lower cover that defines the lower part of the hidden space accommodating the height adjustment mechanism and slides under the guidance of the fixed cover, and an upper cover that defines the upper part of the hidden space and is detachably coupled to the lower cover.

[0044] When the upper cover is separated from the lower cover, at least a part of the height adjustment mechanism may be exposed to the outside.

[0045] Additionally, a cooker according to another embodiment of the present disclosure is characterized by comprising a cavity forming a cooking chamber inside, a casing surrounding at least a portion of the cavity, a height adjustment unit coupled to the casing to adjust the height of the casing, a door for opening and closing the cavity, and a concealment cover that is withdrawn from the cavity side to cover the height adjustment unit when the door is opened and is retracted into the cavity side when the door is closed.

[0046] Additionally, a cooker according to another embodiment of the present disclosure comprises a cavity forming a cooking chamber inside, a casing surrounding at least a portion of the cavity, a height adjustment mechanism coupled to the casing to adjust the height of the casing, and a wire harness disposed inside the casing, wherein the wire harness comprises a head groove recessed from the top to the bottom and a body hole formed penetrating downward from the head groove, wherein a portion of the height adjustment mechanism is seated in the head groove and another portion of the height adjustment mechanism penetrates the body hole and is screw-coupled to the casing.

[0047]

[0048] Specific details of other embodiments are included in the detailed description and drawings.

[0049] According to the cooking appliance of the present disclosure, there is one or more of the following effects.

[0050] The present disclosure has the advantage that the head of the height adjustment mechanism is exposed inside the case and a handle for user convenience is formed on the head, allowing the user to easily adjust the height by opening the door without taking out the already built-in cooking appliance.

[0051] In addition, the present disclosure has the advantage of preventing the aesthetic appearance of the product from deteriorating when the door is opened by concealing the area where the height adjustment mechanism is installed by means of a concealed cover.

[0052] In addition, the present disclosure has the advantage that when the door is opened, a hidden cover is pulled out to cover the height adjustment mechanism, and the user can remove the upper part of the hidden cover and operate the height adjustment mechanism, so that when the door is opened, the height adjustment mechanism is automatically hidden, and when height adjustment is required, the user can remove the upper part of the hidden cover and adjust it.

[0053] In addition, the present disclosure has the advantage of preventing the aesthetic appearance of the product from being degraded when the door is opened by concealing the area where the hinge pivot connector and the wire harness are installed by means of a concealed cover.

[0054] In addition, the present disclosure has the advantage of reducing the number of parts by concealing the hinge pivot connector, wire harness, and height adjustment screw through a concealment cover, thereby preventing the accumulation of foreign substances such as oil generated from food cooked in the cooking space, and concealing them with a single concealment cover instead of concealing each component separately.

[0055] In addition, the present disclosure has the advantage of improving user convenience by allowing cleaning of height adjustment screws, etc., to be performed by removing only a part of the detachable moving cover among the concealed covers.

[0056] In addition, the present disclosure has a design advantage in that the concealed cover can be simply installed without a separate driving source by moving the concealed cover in conjunction with the opening and closing of the door by means of an elastic member.

[0057] The effects of the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims.

[0058] FIG. 1 is a perspective view showing an example of a cooking appliance according to the prior art.

[0059] Figure 2 is a front view of Figure 1.

[0060] FIG. 3 is a perspective view showing a cooking device according to one embodiment of the present invention.

[0061] Fig. 4 is an exploded perspective view showing the cooking device of Fig. 3.

[0062] FIG. 5 is a perspective view showing the concealed cover among the configurations of FIG. 3.

[0063] FIG. 6 is an exploded perspective view showing the moving cover among the components of the concealed cover of FIG. 5.

[0064] Figure 7 is a partial side perspective view taken in the direction “B” of Figure 3.

[0065] FIGS. 8a and FIGS. 8b are cutaway perspective views taken along line AA of FIG. 3, showing the door closed (a) and the door open (b).

[0066] FIGS. 9a and FIGS. 9b are side cross-sectional views taken along the CC line of FIG. 3, showing the door closed (a) and the door open (b).

[0067] FIG. 10 is a perspective view illustrating the base panel, front panel, and height adjustment mechanism, excluding other configurations from FIG. 3.

[0068] FIG. 11a is a perspective view illustrating the height adjustment mechanism and the concealed cover among the configurations of FIG. 3.

[0069] Figure 11b is a drawing illustrating the operation of the height adjustment mechanism of Figure 11a.

[0070] FIG. 12 is a cross-sectional view of the height adjustment mechanism of FIG. 11a and its surroundings.

[0071] FIG. 13 is a drawing illustrating, in order, a perspective view, a side view, a front view, a front cross-sectional view, and a side cross-sectional view of a height adjustment mechanism and a wire harness according to one embodiment of the present disclosure.

[0072] FIG. 14 is a cross-sectional view illustrating a height adjustment mechanism according to another embodiment of the present disclosure.

[0073] FIG. 15 is a drawing showing the perspective view, side view, front view, front cross-sectional view, and side cross-sectional view of the height adjustment mechanism and wire harness shown in FIG. 14 in order.

[0074] The advantages and features of the present disclosure and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present disclosure is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure is complete and to fully inform those skilled in the art of the scope of the invention, and the present disclosure is defined only by the scope of the claims. Throughout the specification, like reference numerals refer to like components.

[0075] Hereinafter, the present disclosure will be described with reference to drawings for explaining a cooking appliance (1) according to one embodiment of the present disclosure.

[0076] FIG. 3 is a perspective view showing a cooking device according to one embodiment of the present invention, and FIG. 4 is an exploded perspective view showing the cooking device of FIG. 3.

[0077] Referring to FIGS. 1 and 2, a cooking device (100) according to one embodiment of the present disclosure includes a casing (110) that forms an exterior. A cavity (S) capable of cooking food is provided inside the casing (110). The casing (10) may be formed with an open front surface.

[0078] The cavity (S) forms a cooking chamber where a user can cook food. The cavity (S) forms a roughly cuboidal space and may include sides forming the left and right sides of the cooking chamber, an upper surface forming the upper side, a lower surface forming the bottom side, and a rear surface forming the rear side. Through the open front of the casing (110), the user can introduce food for cooking into the cavity (S).

[0079] A cooking device (100) according to one embodiment of the present disclosure may further include a door (120) that opens and closes a cavity (S) with respect to a casing (110) by rotating a hinge-connected pivot member (200), as referenced in FIGS. 1 and 2. The door (120) closes the cavity (S) while covering the open front of the casing (110) and opens the cavity (S) while being spaced apart from the front of the casing (110).

[0080] The door (120) may be provided with a combination of a door frame (121), at least one viewing panel (127, 129), and a door top frame (123), as referenced in FIG. 4.

[0081] The door frame (121) may be formed in a rectangular frame shape. When the cavity (S) is closed by the door (120), the door frame (121) may be introduced into the inner side of the front edge of the casing (110) and come into close contact with the sealing member (190) of the casing (110). When the door frame (121) comes into close contact with the sealing member (190), the front surface may be matched with the front edge surface of the casing (110).

[0082] Here, at least one viewing panel (127, 129) may be installed on the door frame (121) to shield the open inner side of the door frame (121). The at least one viewing panel (127, 129) may include an outer door panel (127) coupled to the front end of the door frame (121) to form the front exterior of the door (120), and an inner door panel (129) coupled spaced apart from the outer door panel (127). The inner door panel (129) may be provided as a pair spaced apart in the front and rear directions.

[0083] The outer door panel (127) and the inner door panel (129) may be provided with a transparent or translucent material that allows a user to observe the cavity (S) corresponding to the interior cooking chamber from the outside. Preferably, the outer door panel (127) and the inner door panel (129) may be provided with a special material that allows the cooking chamber to be observed from the outside only when light from the lighting module illuminates the cooking chamber, provided that a lighting module (not shown) is provided to illuminate the cooking chamber. In particular, the inner door panel (129) adjacent to the cavity (S) needs to be formed to withstand the high temperature and high pressure of the cooking chamber and needs to be equipped with waterproof and heat-insulating functions, so this can be considered in the selection of the material.

[0084] The outer door panel (127) and the inner door panel (129) can be slidably inserted from the top to the bottom of the door frame (121) when the door top frame (123) provided at the top of the door frame (121) is removed. After the outer door panel (127) and the inner door panel (129) are slidably inserted into the inside of the door frame (121), the door top frame (123) is connected to the door frame (121).

[0085] The door (120) may further include a door handle (not shown) to facilitate opening and closing by the user. The door handle (21) may be formed on the front of the door top frame (123). More preferably, the door handle (21) may be provided on the upper side of the outer door panel (127).

[0086] However, the door (120) does not necessarily need to be equipped with a door handle. For example, as referenced in FIG. 4, the door (120) may further include a contact sensor (125) attached to the back of the door upper frame (123). When the closed state of the door (120) is detected by the contact sensor (125), the opening of the cavity (S) can be rotated in a one-touch manner according to the pressure applied by the user pushing the front of the door (120).

[0087] The door (120) serves to open and close the cavity (S) of the casing (110). To this end, a hinge installation part (not indicated in the drawing) in which a hinge pivot connector (130), described later, is installed may be provided at the lower front part of the casing (110). The hinge installation part may be formed one each at the lower left and lower right parts of the front part of the casing (110). The door (120) can open and close the cavity (S) in a pull-down manner in which the upper part rotates up and down around its lower part.

[0088] Meanwhile, a control panel (430) that displays the operating status of the cooking device (1) and controls its operation may be mounted on the front upper part of the casing (110).

[0089] A control cover (410) that covers the control panel (430) can be attached to the front of the control panel (430). The control cover (410) may be made of a transparent material.

[0090] A panel catch (420) is installed on the control cover (410), and the panel catch (420) is caught on the control panel (430) so that the control cover (410) is fixed to the control panel (430).

[0091] The panel catch portion (420) may have a structure in which it is made of a material having elasticity, deformed by an external force, and restored by elasticity so as to be caught on the control panel (430).

[0092] In addition, when the aforementioned lighting module is provided inside the door (120), the cooking device (1) according to one embodiment of the present invention may further include a wire harness (refer to reference numeral '140' in FIGS. 8a and 8b described later) for supplying power to the lighting module. The wire harness (140) is configured to be hidden from view by the concealed cover (200) described later.

[0093] A cooking device (1) according to one embodiment of the present disclosure further includes a concealed cover (200) that is withdrawn from the cavity (S) side when the door (120) is opened and is drawn into the cavity (S) side when the door (120) is closed, as referenced in FIGS. 3 and 4.

[0094] The concealed cover (200) is withdrawn from the cavity (S) side when the door (120) is opened and is retracted into the cavity (S) side when the door (120) is closed to always cover the hinge pivot connector (130).

[0095] Additionally, the concealed cover (200) can cover a portion of the bottom of the door (120) when the door (120) is open. The concealed cover (200) can be positioned so as not to overlap with the door (120) in the vertical direction when the door (120) is closed. The concealed cover (200) is positioned to overlap with the door (120) in the horizontal direction when the door (120) is closed.

[0096] And, when the door (120) is opened, the concealed cover (200) is pulled out from the cavity (S) side to cover the height adjustment unit, and when the door (120) is closed, it is pulled in to the cavity (S) side to expose a part of the height adjustment unit.

[0097] The concealed cover (200) is pulled out from the cavity (S) side when the door (120) is opened to cover the height adjustment mechanism, and is pulled into the cavity (S) side when the door (120) is closed to expose a part of the height adjustment mechanism.

[0098] When the above door is closed, the above concealed cover is positioned in a location that does not overlap with the height adjustment mechanism in the vertical direction.

[0099] When the above door is closed, the door is positioned to overlap with at least a part of the height adjustment mechanism in the vertical direction.

[0100] FIG. 5 is a perspective view showing the hidden cover among the configurations of FIG. 3, and FIG. 6 is an exploded perspective view showing the moving cover among the configurations of the hidden cover of FIG. 5.

[0101] As referenced in FIGS. 5 and 6, the concealed cover (200) may include a fixed cover (210) fixed to a casing (110) and having a hollow (211) that is open at the front and back, and a moving cover (220) that moves under the guidance of the fixed cover (210).

[0102] The fixed cover (210) is formed in a roughly rectangular frame shape, and a hollow (211) may be formed in a rectangular shape inside. The hollow (211) of the fixed cover (210) may be formed to be open in the front-rear direction. Here, the hollow (211) of the fixed cover (210) may have a shape corresponding to the outer surface of the part with the largest vertical cross-sectional area among the moving covers (220).

[0103] The fixed cover (210) can be fixed to the casing (110). The fixed cover (210) can be fixed to the bottom of the casing (110). Specifically, the fixed cover (210) can be fixed to a guide frame (refer to the reference numeral '150' in FIGS. 8a and 8b described later) provided at the bottom of the front end of the casing (110). While fixed to the guide frame (150), the fixed cover (210) performs the function of guiding the moving cover (220) to slide forward and backward through the hollow (211).

[0104] As referenced in FIG. 5, the moving cover (220) may have a concealed space (225, 226) formed therein to conceal the hinge pivot connector (130) and the wire harness (140) inside. The concealed space (225, 226) may be formed to communicate in the front-rear direction of the moving cover (220).

[0105] Additionally, the moving cover (220) may be provided as a combination of a lower cover (222) and an upper cover (221). The lower cover (222) occupies the lower part of the hidden space (225, 226) and performs a sliding movement in accordance with the guidance of the fixed cover (210).

[0106] The upper cover (221) occupies the upper part of the concealed space (225, 226) and can be detachably coupled to the lower cover (222). A plurality of hook protrusions (229a) are formed on the inner surface of the upper cover (221), and a plurality of hook coupling grooves (229b) into which the plurality of hook protrusions (229a) are hook-hooked can be formed on the inner surface of the lower cover (222).

[0107] Here, the upper cover (221) may be provided with specifications of various heights to change the upper and lower heights of the hidden space (225, 226). For example, since the volume occupied by the hinge pivot connector (130) and wire harness (140) (or the height adjustment screw (180) described later) which are placed and hidden inside the hidden space (225, 226) varies from product to product, the upper cover (221) may be replaced and installed on the lower cover (222) to correspond to the upper and lower heights of the hidden space (225, 226). However, since the moving cover (220) is configured to be guided through the hollow (211) of the fixed cover (210), it is preferable that it be provided with specifications of various heights corresponding to the upper and lower heights of the hidden space (225, 226) changed by replacing the upper cover (221).

[0108] A pair of guide ends (227) may be integrally formed in the moving cover (220). More specifically, a pair of guide ends (227) may be formed at the rear end of the lower cover (222) of the moving cover (220). A pair of guide ends (227) may be formed extending in the moving direction of the moving cover (220) from the rear end of the moving cover (220). That is, a pair of guide ends (227) may be formed extending in the front-rear direction from the rear end of the moving cover (220). A first guide slot (228) cut in the left-right direction may be formed on the inner side of a pair of guide ends (227). A pair of guide ends (227) may be arranged at a predetermined distance apart in the left-right direction from the rear end of the moving cover (220).

[0109] A second guide slot (223) may be formed in the moving cover (220). More specifically, the second guide slot (223) may be formed on the inner bottom surface of the lower cover (222) of the moving cover (220). The second guide slot (223) may be formed by cutting into the bottom surface of the lower cover (222), extending in the moving direction (i.e., front-back direction) of the lower cover (222), and may be formed by cutting into the up-and-down direction. The second guide slot (223) may be formed by cutting a predetermined distance from the front end of the inner bottom surface of the lower cover (222) toward the rear.

[0110] Meanwhile, a limit projection (213) that is inserted into the interior of the second guide slot (223) may be formed on the fixed cover (210). By being inserted into the interior of the second guide slot (223), the limit projection (213) prevents the forward removal of the moving cover (220) by engaging with the rear end of the second guide slot (223) when the lower cover (222) slides forward.

[0111] FIG. 7 is a partial side perspective view taken in the direction of “B” of FIG. 3, FIG. 8a and FIG. 8b are cutaway perspective views taken along line AA of FIG. 3, showing the door closed (a) and the door open (b), FIG. 9a and FIG. 9b are side cross-sectional views taken along line CC of FIG. 3, showing the door closed (a) and the door open (b).

[0112] In a cooking appliance (1) according to one embodiment of the present disclosure, as referenced in FIGS. 8a to 9b, a hinge pivot connector (130) for pull-down pivot opening and closing of the casing (110) may be connected to the door (120).

[0113] The hinge pivot connector (130) may be positioned in the spaced-apart space between the outer door panel (127) and the inner door panel (129) of the configuration of the door (120). The front end (131) of the hinge pivot connector (130) may be partially exposed to the lower portions of the outer door panel (127) and the inner door panel (129) and may be hinge-coupled to the casing (110). Preferably, the front end of the hinge pivot connector (130) may be hinge-coupled to the front end side of a guide frame (150) that is provided long in the front-rear direction on both the left and right sides of the lower front end of the casing (110).

[0114] Here, the leading edge (131) of the hinge pivot connector (130) can be concealed from the outside by being located in the concealed space (225, 226) of the moving cover (220) that is pulled forward when the door (120) is opened. The leading edge (131) of the hinge pivot connector (130) may be a part that is always in contact with the moving cover (220) when the door (120) is opened or when the door (120) is closed.

[0115] Such a hinge pivot connector (130) may be provided at both left and right ends of the door (120). That is, at the lower portions of both left and right ends of the front end of the casing (110), an installation portion may be provided for hinge-connecting the front end (131) of the hinge pivot connector (130), and a guide frame (150) may be arranged in the front and rear directions at the installation portion.

[0116] Meanwhile, a cooking appliance (1) according to one embodiment of the present disclosure may further include a height adjustment unit provided at the lower end of a casing (110). The height adjustment unit includes various means for adjusting the distance (height) between the casing (110) and the floor. For example, the height adjustment unit may include various devices for adjusting the distance between the casing and the floor.

[0117] Specifically, the height adjustment unit may have a rod shape, a screw shape, etc., and one end may be in contact with the floor, and the other end may be movably coupled to the casing (110).

[0118] More specifically, the height adjustment unit may be a height adjustment bar (not shown) that is engaged with the casing (110) by means of elastic force. A plurality of steps are positioned on the height adjustment bar, so that the user can adjust the length of the height adjustment bar by selectively adjusting the position of the steps on the height adjustment bar.

[0119] In addition, the height adjustment unit may have a configuration in which the length of a plurality of tubes is adjusted by hydraulic or pneumatic pressure.

[0120] A height adjustment unit of a cooking appliance (1) according to one embodiment of the present disclosure may include a height adjustment screw (180) provided at the lower end of a casing (110), as referenced in FIGS. 8a to 9b. The height adjustment screw (180) may be provided at the lower side of the front end of the casing (110). More specifically, the height adjustment screw (180) may be installed to penetrate the lower front end of the casing (110) where a front panel (112) covering the space between the casing (110) and the cavity (S) and a base panel (160) forming the lower surface of the casing (110) are joined.

[0121] The height adjustment screw (180) is provided with a head for height adjustment at the top, and the head of the height adjustment screw (180) is positioned in the hidden space (225, 226) of the moving cover (220) described above so as to be hidden from the outside.

[0122] Here, the hidden space (225, 226) formed in the moving cover (220) can be divided into a first hidden space (225) where a part of the height adjustment screw (180) described above is located, as referenced in FIGS. 5 and 6, and a second hidden space (226) where the tip (131) of the hinge rotation connector (130) described above is located.

[0123] As described above, a second guide slot (223) is formed on the bottom surface of the lower cover (222) corresponding to the first concealed space (225), so that the height adjustment screw (180) fixed to the casing (110) is not interfered with when the lower cover (222) slides in the forward and backward directions.

[0124] Additionally, the second guide slot (223) is a space into which a part of the height adjustment mechanism (180) is inserted.

[0125] Additionally, the bottom surface of the lower cover (222) corresponding to the second hidden space (226) is partially cut so as not to interfere with the rotation of the hinge rotation connector (130), and a round groove (224) having a rounded vertical cross-section may be formed on the upper part of the upper cover (221) corresponding to the second hidden space (226) to prevent the moving cover (220) from being lifted by the leading edge (131) of the hinge rotation connector (130). The round groove (224) may be formed with a rounded surface such that the moving cover (220) in contact is not lifted upwards, taking into account the rotational trajectory of the leading edge (131) of the hinge rotation connector (130).

[0126] However, the prevention of the lifting phenomenon of the moving cover (220) by the rotational movement of the leading edge (131) of the hinge rotational connector (130) is not necessarily achieved only by the round groove (224) of the moving cover (220). For example, the leading edge (131) of the hinge rotational connector (130) can also be designed so that contact with the moving cover (220) is made without interference.

[0127] Meanwhile, a cooking device (1) according to one embodiment of the present disclosure may include a guide frame (150) positioned on the lower side of the front end of the casing (110) to guide the forward and backward sliding movement of the moving cover (220), as referenced in FIGS. 8a to 9b.

[0128] A fixed cover (210) may be fixed to the guide frame (150), and a front end (131) of a hinge pivot connector (130) may be hinge-coupled to a front end further forward than the guide frame (150). Additionally, a case guide projection (117) that is inserted into the interior of the first guide slot (228) described above may be provided at the rear end of the guide frame (150).

[0129] The case guide projection (117) is inserted and positioned inside the first guide slot (228) to guide the forward and backward sliding movement of the moving cover (220), and also serves to limit the forward and backward sliding movement range of the moving cover (220) within the forward and backward length direction of the first guide slot (228).

[0130] Meanwhile, in a cooking device (1) according to one embodiment of the present disclosure, the moving cover (220) slides in the forward and backward directions relative to the fixed cover (210), and can be moved by the expansion and restoring force of the elastic member (230).

[0131] The elastic member (230) may be provided inside the lower front portion of the casing (110), as referenced in FIGS. 9a and 9b. Here, the elastic member (230) may be provided as a spring. The elastic member (230) provided as a spring may have one end (231) connected to a fixed cover (210) and the other end (232) connected to a moving cover (220).

[0132] Such an elastic member (230) can be expanded by a moving cover (220) that slides backward and is inserted into the casing (110) by contact with the front end (131) of the hinge pivot connector (130) when the cavity (S) of the door (120) is closed.

[0133] Conversely, the elastic member (230) can slide the moving cover (220) forward to be pulled out of the casing (110) while forming a restoring force that expands when the cavity (S) of the door (120) opens and then contracts. That is, the moving cover (220) can be moved in conjunction with the door (120) by having its front end constantly in contact with the front end (131) of the hinge rotation connector (130) of the door (120) according to the expansion and restoring force of the elastic member (230).

[0134] However, the elastic member (230) does not necessarily have to be provided as a spring, and may be provided as a torsion bar spring, although not shown. The elastic member (230) provided as a torsion bar spring may be provided such that the expansion and restoring forces described above are formed by connecting one end to a fixed body (210) or guide frame (150) in a fixed state and connecting the other end to a moving cover (220).

[0135] In this way, the cooking device (1) according to one embodiment of the present disclosure can be simplified internally by being configured to automatically be withdrawn and inserted from the casing (110) in conjunction with the opening and closing rotation of the door (120) according to the expansion and restoring force of the elastic member (230) without having to provide a separate power source for the sliding movement of the moving cover (220).

[0136] Meanwhile, a sealing member (190) may be further provided in the portion of the front section of the casing (110) where the front section of the door (120) frame (121) of the door (120) is in close contact. The sealing member (190) may be made of a flexible material such as rubber or silicone, and performs the function of sealing the cavity (S), which is the cooking chamber, when compressed by the door (120) frame (121) or the door (120) top frame (123).

[0137]

[0138] Hereinafter, the operation of a cooking device (1) according to one embodiment of the present disclosure configured as above will be described.

[0139] First, as referenced in FIG. 9a, when the cavity (S) is closed using the door (120), the front end (131) of the hinge rotation connector (130) linked to the door (120) comes into contact with the moving cover (220) and moves it backward. At this time, the moving cover (220) can slide and move naturally into the interior of the casing (110) while being guided by the guide frame (150) along with the guide of the fixed cover (210), so as to prevent it from being lifted upward. Additionally, the elastic member (230) expands as the moving cover (220) moves into the interior of the casing (110) and continuously provides an elastic force forward.

[0140] Next, as referenced in FIG. 9b, when the cavity (S) is opened and rotated using the door (120), the moving cover (220) is stopped inside the casing (110) by the hinge rotation connector (130) of the door (120), and is pulled forward from inside the casing (110) by the restoring force of the elastic member (230), thereby receiving the tip (131) of the hinge rotation connector (130), the wire harness (140), and the upper part of the height adjustment screw (180) into the hidden space (225, 226) to conceal them from the outside.

[0141] In this way, the cooking device (1) according to one embodiment of the present disclosure can prevent the aesthetic appearance of the product from being degraded by using a moving cover (220) to conceal components such as a hinge pivot connector (130), a wire harness (140), and a height adjustment screw (180) from the outside when the door (120) is opened.

[0142] In addition, even when the door (120) is closed, foreign substances such as oil generated from food in the cooking chamber can be induced to accumulate only on the outer surface of the moving cover (220), thereby improving the user's cleaning convenience.

[0143]

[0144] Below, the height adjustment mechanism (180) will be described in detail.

[0145] FIG. 10 is a perspective view illustrating the casing (110) and the height adjustment mechanism (180) with the exception of other configurations from FIG. 3.

[0146] The casing (110) may include an opening (110a) that is open in one direction. Specifically, the casing (110) has an opening (110a) that is open forward, and has a structure that is closed in the other direction.

[0147] More specifically, the casing (110) may include an upper surface (111) and a lower surface (160) facing each other, two side surfaces (114, 116) connecting the upper surface (111) and the lower surface (160) facing each other, and a rear surface (118) connecting the upper surface (111) and the lower surface (160) and the two side surfaces (114, 116).

[0148] Additionally, the casing (110) may be formed as a single unit or may be formed by combining several segments.

[0149] For example, as illustrated in FIG. 10, the casing (110) may include a base panel (160) forming the lower surface of the casing (110) and an upper panel (170) forming the upper surface and side surface of the casing (110).

[0150] The casing (110) includes a front panel (112) that covers the space between the casing (110) and the cavity (S). The front panel (112) may define a surface that intersects the front and rear directions. The front panel (112) may have an opening (112a) formed therein that corresponds to the opening (110a) of the casing (110).

[0151] The front panel (112) may be attached to the upper surface or the front side of the casing (110), but it is preferable to attach it to the base panel (160).

[0152] For example, the front panel (112) may further include a panel joining portion (1121) that is joined to the base panel (160). The panel joining portion (1121) may define a surface that intersects the front panel (112) and a surface that is parallel to the base panel (160). The panel joining portion (1121) creates surface contact between the front panel (112) and the base panel (160). The front panel (112) may be joined to the front end of the base panel (160).

[0153] Additionally, the front panel (112) may include a harness hole (112b) for receiving a concealed cover (200). The harness hole (112b) may be positioned on the left and right sides of the bottom of the front panel (112), respectively. The harness hole (112b) provides a movement space when the concealed cover (200) is moved back and forth. The harness hole (112b) may be formed by penetrating the front panel (112) in the front and rear directions.

[0154] Additionally, a portion of the hinge pivot assembly (130) and the wire harness (140) is located inside the harness hole (112b).

[0155] It is preferable that the height adjustment mechanism (180) be installed in a position where it can be easily adjusted when the user has the door (120) open.

[0156] For example, the height adjustment mechanism (180) may be attached to one side of the casing (110) adjacent to the edge of the opening of the casing (110). Specifically, the height adjustment mechanism (180) may be attached to a base panel (160) corresponding to the lower surface of the casing (110).

[0157] As another example, the height adjustment mechanism (180) can be coupled to the front panel (112). Specifically, the height adjustment mechanism (180) can be coupled to the panel coupling portion (1121) of the front panel (112). A first screw hole (112c) in which the height adjustment mechanism (180) is installed is formed in the panel coupling portion (1121).

[0158] As another example, the height adjustment mechanism (180) can be combined with the front panel (112) and the base panel (160). The height adjustment mechanism (180) can be combined by penetrating the front panel (112) and the base panel (160).

[0159]

[0160] FIG. 11a is a perspective view showing the height adjustment mechanism (180) and the concealed cover (200) in the configuration of FIG. 3, FIG. 11b is a drawing showing the operation of the height adjustment mechanism (180) of FIG. 11a, FIG. 12 is a cross-sectional view showing the height adjustment mechanism (180) of FIG. 11a and the surrounding area, FIG. 13 is a drawing showing, in order, a perspective view, a side view, a front view, a front cross-sectional view, and a side cross-sectional view of another height adjustment mechanism (180) and a wire harness (140) in one embodiment of the present disclosure.

[0161] Referring to FIGS. 11 to 13, the height adjustment mechanism (180) adjusts the installation height of the casing (110). Additionally, the height adjustment mechanism (180) is screw-coupled to the casing (110) to adjust the distance between the bottom surface (B) and the casing (110).

[0162] For example, part of the height adjustment mechanism (180) may be located inside the casing (110), and other part may be located outside the casing (110).

[0163] Specifically, the height adjustment mechanism (180) may include a screw leg (183), a screw head (181), and a screw body (182).

[0164] The screw leg (183) is located outside the casing (110). The screw leg (183) supports the weight of the casing (110) and the cooking appliance. The screw leg (183) may have an expanded outer diameter or cross-sectional area compared to the screw body (182).

[0165] The screw body (182) connects the screw leg (183) and the screw head (181), penetrates the casing (110), and has screw threads (184) formed on its outer surface. The screw body (182) can be inserted into the second screw hole (160a) and / or the first screw hole (112c) of the base panel (160).

[0166] The screw head (181) is located inside the casing (110). The screw head (181) may have an expanded outer diameter or cross-sectional area compared to the screw body (182).

[0167] The screw head (181) may have a structure that facilitates the transmission of external force to rotate the height adjustment mechanism (180) by the user.

[0168] A head handle (187) that enhances grip strength may be formed on the screw head (181). If the screw head (181) is in the shape of a disc, the head handle (187) may have a shape that protrudes upward from the upper surface of the screw head and extends in one direction intersecting the up and down direction. The head handle (187) enhances the user's grip strength, allowing the user to easily rotate the height adjustment mechanism (180) with less force.

[0169] Additionally, a screw body (182) may be inserted into the casing (110), and a nut (185) with threads formed on its inner surface may be installed.

[0170] A nut groove (112d) for receiving a nut (185) is formed around at least one of the first screw hole (112c) and the second screw hole (160a). Specifically, the nut groove (112d) may be formed by the panel joint portion (1121) of the front panel (112) being recessed downward. The nut groove (112d) may be positioned to surround the first screw hole (112c).

[0171] When the height adjustment mechanism (180) is installed alone in the casing (110), it may encroach upon the space for installing other parts or interfere with other parts.

[0172] Therefore, it is preferable that the height adjustment mechanism (180) be installed by passing through the wire harness (140).

[0173] Specifically, the screw head (181) and screw leg (183) of the height adjustment mechanism (180) are located outside the wire harness (140), and a part of the screw body (182) may be located inside the wire harness (140).

[0174] Below, the detailed structure of the wire harness (140) to which the height adjustment mechanism (180) is combined is described.

[0175] The wire harness (140) may include a body hole (144) through which a screw body (182) passes, and a head groove (143) into which a screw head (181) is seated.

[0176] The body hole (144) may be a hole that penetrates the wire harness (140) vertically. The head groove (143) may be positioned to overlap the body hole (144) in a vertical direction.

[0177] The head groove (143) has a larger cross-sectional area than the body hole (144), so that the downward movement of the screw head (181) can be restricted. Additionally, the head groove (143) forms a space for accommodating the screw head (181). The head groove (143) can be formed by the upper surface of the wire harness (140) being recessed downward.

[0178] For example, the wire harness (140) may include a first harness (141) connected to the door (120) and a second harness (142) hinged to the first harness (141) and connected to the casing (110).

[0179] If the wire harness (140) includes a first harness (141) and a second harness (142) that are hinged together, the first harness (141) and the second harness (142) rotate around the hinge (149) when the door (120) rotates.

[0180] The first harness (141) has a first wire hole (147) through which a wire passes. The second harness (142) has a second wire hole (145) through which a wire passes. The first wire hole (147) is in communication with the second wire hole (145).

[0181] The body hole (144) and the head groove (143) described above may be formed in the second harness (142). The body hole (144) may be installed by penetrating the second wire hole (145). The body hole (144) may extend in a direction intersecting the second wire hole (145).

[0182] Specifically, the body hole (144) can be extended in the vertical direction, and the second wire hole (145) can be extended in the forward and backward direction.

[0183] The head groove (143) can be formed by the upper surface of the second harness (142) being sunk downward.

[0184]

[0185] A portion of the height adjustment screw (180) can be located in the first concealed space (225) of the moving cover (220) and concealed from the outside.

[0186] Here, ‘concealment’ or ‘covering’ means that a part of the height adjustment screw (180) is not visible from the user’s field of vision, and the concealment cover (200) covers a part of the height adjustment screw (180) at least from the top.

[0187] Preferably, the expressions of being concealed or covered may mean that the concealed cover (200) covers a part of the height adjustment screw (180) from the top and wraps around the side of a part of the height adjustment screw (180).

[0188] Specifically, a portion of the screw head (181) and screw body (182) of the height adjustment mechanism (180) may be located in the first concealed space (225).

[0189] The lower part of the first concealed space (225) is open or partially open so that when the moving cover (220) moves back and forth, it does not interfere with the screw body (182).

[0190] Specifically, the screw body (182) is inserted into the second guide slot (223) formed in the lower part of the first concealed space (225). When the moving cover (220) moves back and forth, the screw body (182) moves within the second guide slot (223).

[0191] Accordingly, the present disclosure prevents foreign substances, such as oil generated from food cooked in the cooking space, from accumulating by concealing the hinge pivot connector (130), wire harness (140), and height adjustment mechanism (180) through the concealment cover (200), and since each component is concealed with one concealment cover (200) instead of being concealed separately, the number of parts can be reduced.

[0192] In addition, the present disclosure improves user convenience by allowing cleaning of the height adjustment mechanism (180), etc., to be performed by removing only a part of the detachable moving cover (220) among the concealed cover (200).

[0193] Specifically, when the user opens the door (120), the moving cover (220) moves forward so that the upper cover (221) of the moving cover (220) is exposed into the space inside the casing (110).

[0194] The height adjustment mechanism (180) is covered by the upper cover (221). When the user removes the upper cover (221), a part of the height adjustment mechanism (180) (screw head (181)) is exposed. The user can adjust the position of the cooking appliance by adjusting the exposed height adjustment mechanism (180).

[0195]

[0196] Hereinafter, the operation of the height adjustment mechanism (180) will be explained with reference to FIGS. 11a and FIGS. 11b.

[0197] In the state of Fig. 11a, if the user wants to raise the height of the casing (110) or the cooking appliance, they hold the head handle (187) and rotate the screw head (181) in one direction (clockwise), and the height adjustment mechanism (180) moves downward relative to the casing (110) by the interaction of the screw thread (184) and the nut (185).

[0198] The height adjustment mechanism (180) moved downward causes the distance between the screw leg (183) and the casing (110) to increase, and consequently, the distance between the bottom surface (B) and the bottom of the casing (110) increases.

[0199] Of course, contrary to the description above, the user can lower the height of the casing (110) or cooking device by holding the head handle (187) and rotating the screw head (181) counterclockwise.

[0200]

[0201] FIG. 14 is a cross-sectional view illustrating a height adjustment mechanism (180) according to another embodiment of the present disclosure, and FIG. 15 is a drawing illustrating, in order, a perspective view, a side view, a front view, a front cross-sectional view and a side cross-sectional view of the height adjustment mechanism (180) and the wire harness (140) illustrated in FIG. 14.

[0202] Referring to FIGS. 14 and 15, the height adjustment mechanism (180') according to another embodiment of the present disclosure (second embodiment) has a difference in the shape of the screw head (181') compared to the embodiment of FIG. 13 (first embodiment). Hereinafter, in describing the second embodiment, the differences from the first embodiment will be described mainly, and any configurations not otherwise described will be considered identical to the first embodiment.

[0203] The screw head (181') of the second embodiment may have a smaller size than the first embodiment to reduce the space occupied. Additionally, the head handle (187) of the first embodiment may be omitted in the screw head (181') of the second embodiment.

[0204] A mechanism groove (188) may be formed in the screw head (181') to which a rotating mechanism for rotating the screw head (181') is coupled. The mechanism groove (188) is a groove to which a rotating mechanism, such as a screwdriver, is coupled, and may be a groove in which the upper surface of the screw header is recessed downward.

[0205] For example, the mechanism groove (188) may extend in at least one direction. As another example, the mechanism groove (188) may be two grooves that extend intersecting each other.

[0206] Therefore, although the user has the burden of using the rotating mechanism, if height adjustment is not performed, the possibility of interference with other components is reduced due to the smaller screw head (181'), and the space occupied by the screw head (181') is reduced.

[0207]

[0208] Although preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above. Various modifications are possible by those skilled in the art without departing from the essence of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present disclosure.

[0209] The present disclosure may be modified and implemented in various forms, and its scope of rights is not limited to the embodiments described above. Therefore, if a modified embodiment includes the components of the claims of the present disclosure, it should be considered to fall within the scope of the present disclosure.

[0210] Some or other embodiments of the present disclosure described above are not exclusive or distinct from one another. Some or other embodiments of the present disclosure described above may be used in combination or combined for their respective configurations or functions.

[0211] For example, this means that configuration A described in a specific embodiment and / or drawing and configuration B described in another embodiment and / or drawing can be combined. That is, it means that even if the combination between configurations is not directly described, combination is possible except in cases where it is described that combination is impossible.

[0212] The foregoing detailed description should not be interpreted restrictively in all respects and should be considered exemplary. The scope of the present disclosure shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present disclosure are included within the scope of the present disclosure.

[0213]

[0214] [Explanation of the symbol]

[0215] 100: Cooking appliance 110: Casing

[0216] 120: Door 130: Hinge pivot connector

[0217] 140: Wire harness 150: Guide frame

[0218] 180: Height adjustment screw 200: Concealed cover

[0219] 210: Fixed cover 220: Moving cover

Claims

1. A cavity forming a cooking chamber inside; A casing enclosing at least a portion of the above cavity; and It includes a height adjustment mechanism screw-coupled to the above casing, The above height adjustment mechanism is, A screw leg located outside the above casing; A screw head located inside the above casing; and A cooking appliance comprising a screw body that connects the screw leg and the screw head, penetrates the casing, and has screw threads formed on its outer surface.

2. In Paragraph 1, The above casing includes an opening that is open in one direction, and The above height adjustment mechanism is, A cooking appliance coupled to one side of the casing adjacent to the edge of the opening.

3. In Paragraph 2, The above casing is, Upper and lower surfaces facing each other; Two sides facing each other and connecting the upper and lower surfaces; and It includes the upper surface, the lower surface, and the rear surface connecting the two sides, and The above height adjustment mechanism is, A cooking appliance coupled to the lower surface of the above casing.

4. In Paragraph 2, The above casing is, It further includes a front panel that covers the space between the casing and the cavity, and The above height adjustment mechanism is, A cooking appliance coupled to the above front panel.

5. In Paragraph 1, A door hinged to the above casing to open and close the cavity; and A cooking appliance further comprising a wire harness that accommodates a member electrically connecting the door and the casing.

6. In Paragraph 5, The above height adjustment mechanism is, A cooking appliance installed by penetrating the above wire harness.

7. In Paragraph 6, The above wire harness is, The body hole through which the above screw body passes, and A cooking appliance comprising a head groove in which the above-mentioned screw head is seated.

8. In Paragraph 1, A cooking appliance in which a head handle is formed on the screw head to enhance grip.

9. In Paragraph 1, A cooking appliance in which a mechanism groove is formed in the screw head to which a rotating mechanism for rotating the screw head is coupled.

10. In Paragraph 1, A door hinged to the above casing to open and close the cavity; and A cooking appliance further comprising a concealed cover that is withdrawn from the cavity side when the door is opened and drawn into the cavity side when the door is closed.

11. In Paragraph 10, The above concealed cover is, When the above door is opened, the above height adjustment mechanism is covered, and A cooking appliance that exposes a part of the height adjustment mechanism when the above door is closed.

12. In Paragraph 10, A cooking appliance in which a portion of the lower part of the door is covered by the concealment cover when the door is opened.

13. In Paragraph 10, A cooking appliance in which, when the door is closed, the concealed cover is positioned so as not to overlap with the door in the vertical direction.

14. In Paragraph 10, A cooking appliance in which, when the above door is closed, the above concealed cover is positioned so as not to overlap with the height adjustment mechanism in the vertical direction.

15. In Paragraph 10, A cooking appliance in which, when the above door is closed, the door is positioned to overlap with at least a part of the height adjustment mechanism in the vertical direction.

16. In Paragraph 10, The above-mentioned concealed cover is a cooking device that moves by means of an elastic member provided inside the casing.

17. In Paragraph 10, The above concealed cover is, A fixed cover fixed to the above casing; and A cooking appliance comprising a moving cover that moves relative to the fixed cover by means of the expansion and restoring force of the elastic member.

18. In Paragraph 17, The above moving cover is, Defines the lower part of the concealed space accommodating the height adjustment mechanism, and a lower cover that slides under the guidance of the fixed cover, and A cooking appliance comprising an upper cover that defines the upper part of the above-mentioned concealed space and is detachably coupled to the lower cover.

19. A cavity forming a cooking chamber inside; A casing that encloses at least a portion of the above cavity; A height adjustment unit coupled to the above casing to adjust the height of the above casing; A door for opening and closing the above cavity; and A cooking appliance comprising a concealed cover that is withdrawn from the cavity side when the door is opened to cover the height adjustment unit, and is retracted into the cavity side when the door is closed.

20. A cavity forming a cooking chamber inside; A casing that encloses at least a portion of the above cavity; A height adjustment mechanism coupled to the above casing to adjust the height of the above casing; and It includes a wire harness disposed inside the above casing, and The above wire harness is, A head groove recessed from top to bottom; and It includes a body hole formed penetrating downward from the head groove, and A cooking appliance characterized in that a part of the height adjustment mechanism is seated in the head groove, and another part of the height adjustment mechanism penetrates the body hole and is screw-coupled to the casing.

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