Table having elevatable tray

Abstract

The present invention relates to a table having an elevatable tray. According to the present invention, the table having an elevatable tray comprises: a tabletop (90) provided with a lift opening (92); a lift table (70) capable of ascending and descending, the lift table being inserted into and fastened to the lower surface of the tabletop (90), having the same size as the lift opening (92), and having the same thickness as the tabletop (90) so as to be horizontally aligned with the tabletop (90) on a plane; and a sector-shaped driven gear arm (41) configured to ascend and descend by rotating a sector-shaped driven gear (40) through driving of an electric motor (20) when the lift table (70) ascends and descends.

Description

Tray Lifting Table

[0001] The present invention relates to a tray-lifting table, and more specifically, to a Korean dining table where people enjoy hot soup, just as they feel sad when soup runs out, the Korean dining table can easily lead to dangerous situations. Moving a boiling earthenware pot onto a tray and to the table requires overcoming numerous dangerous situations. Furthermore, placing various side dishes on the tray and then moving them back to the table is also a cumbersome task. To alleviate this inconvenience, the present invention relates to a tray-lifting table where a tray containing hot soup and various side dishes is placed on a lift table above the table, the tray is lowered horizontally to the tabletop, and embedded in the tabletop. This eliminates the need to move the dishes on the tray to the table. After the meal, the dishes are placed on the tray, the lift table is raised, and all that is required is to move the exposed tray.

[0002] When Koreans talk about romance, they use the metaphorical expression "hot rice with meat soup." As such, soup is a constant companion to Korean cuisine. It's hard to imagine a Korean meal without soup. Rice is only eaten with soup. This is called "tang" culture. Soup is made by boiling ingredients together. When various ingredients are mixed and simmered for a long time, their flavors meld together, creating a deep and profound flavor completely different from the original.

[0003] For Koreans, soup is an essential part of their culinary culture, but from the perspective of preparing it, it's a very difficult and arduous task. While soup itself carries weight, maintaining its heat requires a substantial vessel, like an earthenware pot, requiring physical strength. Naturally, the heat makes it dangerous.

[0004] We often see people pouring soup from a boiling pot into bowls, then transferring one or two bowls of soup onto a platter and serving them on the table, but it is difficult to recognize that this is a very dangerous behavior.

[0005] This famous local restaurant, known for its delicious chueotang (fish stew) and stone pot rice, has become so renowned that people have to wait in line to get a table. The sight of the food finally being brought to the table after sitting at a table with a large group of people waiting for their food is mouthwatering, but the sight of the hands moving the simmering pots and stone pots is also a thrilling sight.

[0006] Even simple Korean dishes are accompanied by a variety of side dishes. Especially at high-end restaurants specializing in Korean cuisine, the side dishes are so numerous that they often overlap the plates. The sight of countless bowls of banchan being carried to the table can be a tedious and cumbersome task. Some restaurants even place trays of food on the table for solo diners. This can make you feel somehow ignored and uneasy.

[0007] Korean table settings often feature dangerously hot soups and the hassle and risk of transporting rice and various side dishes. There's no way to address these risks and inconveniences at the dinner table. For food service workers, who face these challenges all day long, this poses a significant physical and mental risk, highlighting the critical need for research and development.

[0008] The purpose of the present invention to solve the above-described problem is to provide a tray lifting table in which, although the lift table is normally fixed horizontally with the table top and is no different from a general table, when a tray is placed on the lift table and the lift table is lowered, the tray is embedded in the table top, so that the table top and the tray become horizontal in plane, and the contents on the tray do not have to be separately transferred to the table.

[0009] Another object of the present invention is to provide a tray lifting table in which, when a meal is finished and dishes and other items on the table are cleared, the lift table is raised so that the lift table and the table top are fixed horizontally and a tray on the lift table protrudes, so that the table top can be cleaned by simply lifting and moving the tray.

[0010] Another object of the present invention is to provide a tray for a tray-lifting table, which has a cone-shaped tray with a top and bottom, so that when the lift table is lowered, the tray naturally aligns with the lift opening even when the tray is placed roughly in the lift opening.

[0011] In order to achieve the above-described purpose, the tray lifting table according to the present invention has a lift opening (92) in the table top (90) and a lifting lift table (70) having the same size as the opening. A lift fixing bracket (71) is coupled to the bottom surface of the lift table (70), so that the table top (90) and the lift table (70) are exactly horizontal in terms of plane, and the bottom surface of the table top (90) and the flat surface of the lift fixing bracket (71) come into contact so that they cannot rise any further, and are fixed by an electric motor (20) of a brake (not shown) type, so that even if a force is applied to the lift table (70) in the direction of gravity, it is fixed without movement.

[0012] A single knuckle joint fixing type (50) is attached to the bottom of the lift fixing bracket (71), and an upper double knuckle joint (52) is assembled to one end of the joint connecting rod (55), and a lower double knuckle joint (56) is assembled to the other end.

[0013] The single knuckle joint fixed type (50) attached to the lower surface of the lift fixing bracket (71) is connected by the upper double knuckle joint (52) and the upper knuckle joint pin (54), and the lower double knuckle joint (56) at the other end is also connected to the driven gear arm (41) by the lower knuckle joint pin (58).

[0014] The fan-shaped driven gear (40) is composed of a gear on the circumference, a fan-shaped driven gear arm (41), and a joint pinhole (42) to be connected to the lower double knuckle joint (56).

[0015] The gear portion of the circumferential portion of the driven gear (40) and the circular drive gear (30) are assembled so that their teeth fit together, so that when the drive gear (30) rotates, the driven gear (40) also rotates.

[0016] The drive gear (30) is connected to the output shaft of the reduction gearbox (21), and the reduction gearbox (21) is connected to the electric motor (20). The rotational speed of the electric motor (20) is reduced in proportion to the gear ratio of the reduction gearbox (21) and becomes the rotational speed of the drive gear (30).

[0017] A switch box (10) equipped with a rising switch (11) and a falling switch (12) is attached to the lower surface of the table top (90) in a position where it is easy to operate.

[0018] Each corner of the bottom surface of the lift table (70) is provided with a horizontal maintenance pin (60), and a horizontal maintenance pin holder (61) having an air hole (62) at a position where the horizontal maintenance pin (60) is vertically inserted is fixed to the outer case (100).

[0019] Preferably, a lift opening (92) is provided on the table top (90), and the lift table (70) is horizontally fixed to the lift opening (92) by a brake (not shown) type electric motor (20), i.e., the driven gear arm (41) touches the upper limit switch (80) so that the power of the electric motor (20) is cut off, and the tray (200) is placed on the lift table (70).

[0020] Preferably, when the lowering switch (12) of the switch box (10) is pressed, the electric motor (20) rotates counterclockwise and transmits power to the reduction gearbox (21). At this time, the driving gear (30) fixed to the output shaft of the reduction gearbox (21) rotates counterclockwise, and the driven gear (40) that rotates in mesh with the driving gear (30) rotates clockwise and lowers the driven gear arm (41). The lift table (70) connected to the driven gear arm (41) by a knuckle joint descends, resulting in the tray (200) being lowered. The electric motor (20), which was rotating downward, stops when the driven gear arm (41) touches the lowering limit switch (81), and the tray (200) completes the lowering, so that the flat surface of the table top (90) and the flat surface of the tray (200) become horizontal and complete the lowering.

[0021] Preferably, when the lift table (70) has completed its descent and the upward switch (11) of the switch box (10) is pressed, the electric motor (20) rotates clockwise and transmits power to the reduction gear box (21). At this time, the driving gear (30) fixed to the output shaft of the reduction gear box (21) rotates clockwise, and the driven gear (40) that rotates in mesh with the driving gear (30) rotates counterclockwise and raises the driven gear arm (41). The lift table (70) connected to the driven gear arm (41) by a knuckle joint rises, thereby raising the tray (200). The electric motor (20), which was rotating upward, stops when the driven gear arm (41) touches the upward limit switch (80), and the tray (200) completes its rise, so that the flat surface of the table top (90) and the flat surface of the lift table (70) become horizontal, completing the rise. The tray (200) is easily moved in a protruding state on the lift table (70).

[0022] The present invention provides a tray lifting table that can prevent the inconvenience and physical fatigue as well as the dangerous situation of moving hot food by lowering the tray on the table and embedding it in the table, thereby eliminating the need to move the items on the tray to the table again.

[0023] The present invention can provide a tray lifting table that raises and exposes a tray embedded on the table, thereby clearing the table by moving the tray without separately moving objects on the table after a meal.

[0024] The present invention can provide a tray for a table with a cone shape that can be lowered naturally with the mouth aligned even when placed roughly in a lift opening.

[0025] Figure 1 is a full view of a tray lifting table according to one embodiment of the present invention.

[0026] This is a drawing showing the structure.

[0027] FIG. 2 is a drawing showing a switch box (10) of a tray lifting table according to one embodiment of the present invention and the main components for detailed explanation.

[0028] FIG. 3 is a drawing for explaining in detail the sequential movement of a tray lifting table according to one embodiment of the present invention.

[0029] FIG. 4 is an enlarged view illustrating a knuckle joint connection part in a tray lifting table according to one embodiment of the present invention.

[0030] FIG. 5 is a drawing for explaining in detail the air hole (62) of the horizontal maintenance pin holder (61) of the tray lifting table according to one embodiment of the present invention.

[0031] FIG. 6 is a drawing showing the overall configuration of a tray lifting table according to one embodiment of the present invention.

[0032] FIG. 7 is a drawing showing a tray of a tray lifting table according to one embodiment of the present invention with the tray installed.

[0033] Figure 8 is an electrical diagram of a tray lifting table according to one embodiment of the present invention.

[0034] Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. When designating components in each drawing, it should be noted that, where possible, identical components are given the same reference numerals, even if they appear in different drawings.

[0035] And when describing an embodiment of the present invention, if it is determined that a specific description of a related known configuration or function hinders understanding of the embodiment of the present invention, the detailed description is omitted.

[0036] Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and the nature, order, or sequence of the components are not limited by the terms.

[0037] Referring to FIGS. 1 and 2, the structure and operation of a tray lifting table according to one embodiment of the present invention will be described below.

[0038] FIG. 2 is a drawing showing a switch box (10) and a main configuration for detailed explanation of a tray lifting table (hereinafter referred to as “the table”) according to one embodiment of the present invention.

[0039] Referring to FIG. 1, the dining table includes a switch box (10), an electric motor (20), a reduction gearbox (21), a driving gear (30), a driven gear (40), a driven gear arm (41), a fixed single knuckle joint (50), an upper double knuckle joint (52), a lower double knuckle joint (56), a lift table (70), a dining table top (90), and a lift opening (92).

[0040] A lift fixing bracket (71) is attached to the bottom surface of the lift table (70), so that the flat surface of the lift fixing bracket (71) that extends beyond the range of the lift table (70) and the bottom surface of the table top (90) are in contact with each other, so that the table top (90) and the lift table (70) are exactly horizontal in terms of plane.

[0041] A single-mount knuckle joint fixing type (50) is fixed to the bottom of the lift fixing bracket (71), and is fastened by an upper double-mount knuckle joint (52) and an upper double-mount knuckle joint pin (54). The upper double-mount knuckle joint (52) and the upper end of the joint connecting rod (55) are fastened, and the lower double-mount knuckle joint (56) is fastened at the bottom. The lower double-mount knuckle joint (56) is fastened to the driven gear arm (41) by a lower double-mount knuckle joint pin (58).

[0042] The fan-shaped driven gear (40) is meshed with the driving gear (30) and rotates in opposite directions.

[0043] The drive gear (30) is connected to the output shaft of the reduction gearbox (21) and rotates, and the rotation of the reduction gearbox (21) is determined by the rotation of the connected electric motor (20).

[0044] The rotation of the electric motor (20) continues until the rising limit switch (80) of the driven gear arm (41) is touched when rising, and continues until the falling limit switch (81) is touched when falling.

[0045] A switch box (10) equipped with a rising switch (11) and a lowering switch (12) for driving an electric motor (20) is attached to the lower surface of the table top (90) at a position where it is easy to operate.

[0046] A tray (200) is placed on the flat surface of the lift table (70). The flat surface of the tray (200) is the same size as the lift opening (92) and has an inverted cone shape with an upper and lower angle on all the front, back, left, and right sides.

[0047] A detailed description of the above-described configuration and operation of this table will be provided below.

[0048] Fig. 2 is a drawing showing the switch box (10) of this table and the main components for detailed explanation. Fig. 3 is a drawing for detailed explanation of the sequential movements of this table.

[0049] Referring to FIGS. 2 and 3, a tray (200) in the shape of an inverted cone with the inner and outer sides of the tray (200) being fixed by a brake (not shown) type electric motor (20) and being level with the table top (90) is loaded onto a kitchen cart (300) and pushed up and down without the need to lift or move the heavy tray (200).

[0050] Press the lowering switch (12) of the switch box (10) attached to the bottom of the restaurant table (90).

[0051] Figure 8 is an electrical diagram of this table.

[0052] Referring to Fig. 8, when the lowering switch (12) of the switch box (10) is pressed, the contacts of the lowering switch (12) are short-circuited, allowing current to flow, power is supplied to the electric motor (20), and the electric motor (20) rotates. At this time, the rotation direction is counterclockwise. The rotation of the electric motor (20) continues until the lowering limit switch (81) is opened and power to the electric motor (20) is cut off.

[0053] Figure 2 is a drawing showing the switch box (10) of this table and the main components for detailed explanation.

[0054] Referring to Fig. 2, when the electric motor (20) rotates counterclockwise, power is transmitted to the connected reduction gearbox (21), and the gear ratio is reduced to cause the drive gear (30) connected to the output shaft of the reduction gearbox (21) to rotate counterclockwise.

[0055] The driving gear (30) that rotates counterclockwise rotates the meshed driven gear (40) clockwise, thereby lowering the fan-shaped driven gear arm (40). The lowering continues until the driven gear arm (41) touches the lowering limit switch (81). At this time, the lowering limit switch (81) is positioned at a position where the flat surface of the table top (90) and the flat surface of the tray (200) are horizontal. Therefore, the lowering movement of the driven gear arm (41) stops when the lift table (70) is lowered and the flat surface of the tray (200) and the table top (90) are horizontal.

[0056] Figure 4 is an enlarged view illustrating the knuckle joint connection in this table.

[0057] Referring to Fig. 4, the lower double knuckle joint (56) to which the driven gear arm (41) is connected is connected by precisely aligning the driven gear arm joint pin hole (42) and the lower double knuckle joint pin hole (57) and inserting the lower knuckle joint pin (58). The driven gear arm (41) and the lower double knuckle joint (56) have a joint structure that can move freely up to the physical limit in vertical movement. The upper double knuckle joint (52) is connected to the tartan of the joint connecting rod (55) connected to the lower double knuckle joint (56), and the upper double knuckle joint (52) is connected to the single knuckle joint fixed type (50), and the single knuckle joint pin hole (51) and the upper double knuckle joint pin hole (53) are precisely aligned and the upper knuckle joint pin (54) is inserted to connect them. The fixed single-mount knuckle joint (50) and the upper double-mount knuckle joint (52) are structurally joints that can move freely up to the physical limit in vertical movement. The knuckle joint connecting portion (Fig. 4) connecting the driven gear arm (41) and the lift table (70) has a structure that is free for vertical movement, thereby promoting natural movement when the lift table (70) is lowered.

[0058] Figure 5 is a drawing for explaining in detail the air hole (62) of the horizontal maintenance pin holder (61) of this table.

[0059] Referring to Fig. 5, in order to prevent the lift table (70) from tilting due to the position of an object on the lift table (70) being biased when the lift table (70) is lowered, a horizontal maintenance pin (60) is provided on the bottom of the lift fixing bracket (71), and a horizontal maintenance pin holder (61) is attached to the outer case (100) at the center perpendicular to the horizontal maintenance pin (60), and an air hole (62) is provided in the horizontal maintenance pin holder (61).

[0060] Preferably, the horizontal maintenance pin (60) and the horizontal maintenance pin holder (61) are aligned at exactly 90 degrees in the vertical direction so that the horizontal maintenance pin (60) can be smoothly inserted into the horizontal maintenance pin holder (61). If the lift table (70) is tilted and the horizontal maintenance pin (60) does not advance at exactly 90 degrees to the horizontal maintenance pin holder (61), the horizontal maintenance pin (60) and the horizontal maintenance pin holder (61) will not advance due to friction. Therefore, the lift table (70) descends while remaining horizontal.

[0061] Preferably, when the horizontal maintenance pin (60) is moved vertically with the horizontal maintenance pin holder (61), the compressed air inside the horizontal maintenance pin holder (61) flows out through the air hole (62) to allow the horizontal maintenance pin (60) to be inserted into the horizontal maintenance pin holder (61) and moved naturally.

[0062] If you have finished eating at a table that has been easily set with the lowering of a tray (200), all that remains is to clear away the empty plates and leftover dishes.

[0063] Fig. 2 is a drawing showing the switch box (10) of this table and the main components for detailed explanation. Fig. 3 is a drawing for detailed explanation of the sequential movements of this table.

[0064] Referring to FIGS. 2 and 3, after finishing a meal, empty dishes and leftover dishes are placed on a tray (200) embedded in a lift opening (92) of a table top (90).

[0065] Press the rising switch (11) of the switch box (10) attached to the bottom of the restaurant table (90).

[0066] Figure 8 is an electrical diagram of this table.

[0067] Referring to Fig. 8, when the upward switch (11) of the switch box (10) is pressed, the contacts of the upward switch (11) are short-circuited, causing current to flow, power is supplied to the electric motor (20), and the electric motor (20) rotates. At this time, the rotation direction is clockwise. The rotation of the electric motor (20) continues until the upward limit switch (80) is opened and power to the electric motor (20) is cut off.

[0068] Figure 2 is a drawing showing the switch box (10) of this table and the main components for detailed explanation.

[0069] Referring to Fig. 2, when the electric motor (20) rotates clockwise, power is transmitted to the connected reduction gearbox (21), and the gear ratio is reduced to cause the drive gear (30) connected to the output shaft of the reduction gearbox (21) to rotate clockwise.

[0070] The clockwise rotating drive gear (30) rotates the meshed driven gear (40) counterclockwise, thereby causing the fan-shaped driven gear arm (40) to rise. The rise continues until the driven gear arm (41) touches the rising limit switch (80). At this time, the position of the rising limit switch (80) is such that the flat surface of the table top (90) and the flat surface of the lift table (70) become horizontal. Therefore, the upward movement of the driven gear arm (41) stops when the lift table (70) rises and the flat surfaces of the table top (90) become horizontal.

[0071] Figure 4 is an enlarged view illustrating the knuckle joint connection in this table.

[0072] Referring to Fig. 4, the lower double knuckle joint (56) to which the driven gear arm (41) is connected is connected by precisely aligning the driven gear arm joint pin hole (42) and the lower double knuckle joint pin hole (57) and inserting the lower knuckle joint pin (58). The driven gear arm (41) and the lower double knuckle joint (56) have a joint structure that can move freely up to the physical limit in vertical movement. The upper double knuckle joint (52) is connected to the tartan of the joint connecting rod (55) connected to the lower double knuckle joint (56), and the upper double knuckle joint (52) is connected to the single knuckle joint fixed type (50), and the single knuckle joint pin hole (51) and the upper double knuckle joint pin hole (53) are precisely aligned and the upper knuckle joint pin (54) is inserted to connect them. The fixed single-mount knuckle joint (50) and the upper double-mount knuckle joint (52) are structurally joints that can move freely up to the physical limit in vertical movement. The knuckle joint connecting portion (Fig. 4) connecting the driven gear arm (41) and the lift table (70) has a structure that is free for vertical movement, thereby promoting natural movement when the lift table (70) is lowered.

[0073] Figure 5 is a drawing for explaining in detail the air hole (62) of the horizontal maintenance pin holder (61) of this table.

[0074] Referring to FIG. 5, in order to prevent the lift table (70) from tilting due to an uneven position of an object on the lift table (70) when the lift table (70) is raised, a horizontal maintenance pin (60) is provided on the bottom of the lift fixing bracket (71), and a horizontal maintenance pin holder (61) is attached to the outer case (100) at the center perpendicular to the horizontal maintenance pin (60), and an air hole (62) is provided in the horizontal maintenance pin holder (61).

[0075] Preferably, the horizontal maintenance pin (60) and the horizontal maintenance pin holder (61) are at exactly 90 degrees in the vertical direction so that the horizontal maintenance pin (60) can move smoothly with the horizontal maintenance pin holder (61). If the lift table (70) is tilted and the horizontal maintenance pin (60) does not move at exactly 90 degrees with the horizontal maintenance pin holder (61), friction between the horizontal maintenance pin (60) and the horizontal maintenance pin holder (61) prevents smooth movement. Therefore, the lift table (70) rises while remaining horizontal.

[0076] Preferably, when the horizontal maintenance pin (60) is discharged perpendicular to the horizontal maintenance pin holder (61), the vacuum inside the horizontal maintenance pin holder (61) naturally causes air to flow in through the air hole (62) so that the horizontal maintenance pin (60) is discharged from the horizontal maintenance pin holder (61).

[0077] Figure 6 is a drawing showing the overall configuration of this table.

[0078] Referring to Fig. 6, the table includes a lift table (70), a tray (200), and a kitchen cart (300). The height of the kitchen cart (400) is horizontal to the table top (90).

[0079] Preferably, when you need to clear items from the table after a meal, place a kitchen cart (300) next to the table, set the brakes (not shown) on the wheels, slide the tray (200) on the lift table (70) onto the kitchen cart (300), release the brakes (not shown), and then move. This is quick and easy, as you can move the tray (200) without the hassle of moving the items on the table multiple times.

[0080] The scope of protection of the present invention is not limited to the description and expression of the embodiments explicitly described above. Furthermore, it should be noted that the scope of protection of the present invention may not be limited by obvious modifications or substitutions within the technical field to which the present invention pertains.

[0081]

[0082] [Explanation of symbols]

[0083] 10: Switch box

[0084] 11: Up switch 12: Down switch

[0085] 20: Electric motor 21: Reduction gearbox

[0086] 22: Electric motor fixed support 30: Drive gear

[0087] 31: Drive gear support 40: Driven gear

[0088] 41: Driven gear arm 42: Driven gear joint pin hole

[0089] 43: Driven gear support 50: 1-mount knuckle joint fixed type

[0090] 51: Single knuckle joint pin hole 52: Upper double knuckle joint

[0091] 53: Upper double knuckle joint pin hole 54: Upper knuckle joint pin

[0092] 55: Joint connecting rod 56: Lower double knuckle joint

[0093] 57: Lower double knuckle joint pin hole 58: Lower knuckle joint pin

[0094] 60: Horizontal maintenance pin 61: Horizontal maintenance pin holder

[0095] 62: Air hole 70: Lift table

[0096] 80: Rising limit switch 81: Lowering limit switch

[0097] 90: Table top 91: Table legs

[0098] 92: Lift opening 100: Enclosure

[0099] 200: Tray 300: Kitchen Cart

[0100]

[0101] The present invention provides a tray lifting table that can prevent the inconvenience and physical fatigue of moving items on a tray to the table again by lowering the tray on the table and burying it in the table, thereby preventing the dangerous situation of moving hot food.

[0102] The present invention can provide a tray lifting table that raises and exposes a tray embedded on the table, thereby allowing the table to be cleared by moving the protruding tray without having to move objects separately on the table after a meal.

[0103] The present invention can provide a tray for a table with a cone shape that can be lowered naturally with its back aligned with the lift opening even when placed roughly in the lift opening.

[0104] According to the present invention, it is a very commercially necessary and useful invention because it can prevent cumbersome and dangerous actions of workers in restaurants providing food.

Claims

1. A tray lifting table including a lift table (70) that is provided with a lift opening (92) on a table top (90), is inserted and connected at the bottom of the table top (90), has the same size as the lift opening (92) and the same thickness as the table top (90), and is capable of being raised and lowered horizontally with the table top (90) in terms of plane. In paragraph 2.1, A tray lifting table that uses electricity as an energy source to drive an electric motor (20) for the power to rise and fall of a lift table (70), and rotates a fan-shaped driven gear (40) to cause a fan-shaped driven gear arm (41) to rise and fall, resulting in a lift table (70) that rises and falls. In paragraph 3.1, A tray (200) in the shape of a cone with a top and bottom that naturally descends to align with the lift opening (92) when the lift table (70) is lowered, even when placed roughly on the lift table (70).

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