KR200497301Y1 - Apparatus for Height Adjustable Table - Google Patents

Abstract

A first lifting column configured to rise or fall based on a user's input signal; a second lifting column configured to rise or fall in the same manner as the first lifting column based on an input signal; A monitor support shelf (monitor) configured to have a first lifting column connected through it at one end and a second lifting column to be connected through it at the other end, and to be able to rise or fall depending on the rise or fall of the first lifting column and the second lifting column. support shelf); Obstacle detection sensor that detects the tilt angle of the monitor support shelf as it rises or falls; A control box that controls the first lifting column and the second lifting column to lower the monitor support shelf when the obstacle detection sensor detects a collision between the monitor support shelf and an obstacle when the monitor support shelf rises; and a lower pedestal coupled to the first lifting column and the second lifting column and supporting the first lifting column and the second lifting column.

Description

Height Adjustable Table{Apparatus for Height Adjustable Table}

An embodiment of the present invention relates to a height-adjustable table.

The content described in this part simply provides background information on the present invention and does not constitute prior art.

Generally, the column of a height-adjustable table is installed in the center of the table top and is configured to adjust the height of the table by raising or lowering the column by the operation of a switch connected to a control box.

However, if the top of the table hits an obstacle while moving to its maximum height, the motor continues to run to reach that position even though it must stop rising, which causes overload on the motor, shortening its lifespan and causing it to malfunction. There is a problem. Likewise, if the table hits an obstacle while moving to the minimum height, the table must stop lowering.

Additionally, if the column of the table is located in the center of the top plate, if an impact is applied to the edge of the top plate, the table will shake. Additionally, if the width of the table top is designed to be large, there is a problem of structural instability.

Accordingly, the embodiment of the present invention uses an obstacle detection sensor to lower the table by using an obstacle detection sensor when the monitor support shelf contacts an obstacle while rising and is tilted. Therefore, the main purpose is to prevent overload of the motor, reduce the possibility of failure, and increase the lifespan of the motor.

In addition, the embodiment of the present invention installs at least two or more lifting columns on the left and right sides to support the monitor support shelf, thereby preventing shaking even when an impact is applied to the monitor support shelf, and making the width of the monitor support shelf larger than before. There are different purposes in designing.

According to one embodiment of the present invention, a first lifting column configured to rise or fall based on a user's input signal; a second lifting column configured to rise or fall in the same manner as the first lifting column based on the input signal; A monitor configured to have one end through which the first lifting column is coupled and the other end through which the second lifting column is coupled, and to be able to rise or fall depending on the rise or fall of the first lifting column and the second lifting column. monitor support shelf; An obstacle detection sensor that detects a tilt angle when the monitor support shelf rises or falls; When the monitor support shelf rises and the obstacle detection sensor detects a collision between the monitor support shelf and an obstacle, a control box controls the first lifting column and the second lifting column to lower the monitor support shelf. ); and a lower pedestal coupled to the first lifting column and the second lifting column and supporting the first lifting column and the second lifting column.

As described above, according to this embodiment, if the monitor support shelf is tilted in contact with an obstacle while being raised using an obstacle detection sensor, the rise is stopped and the motor is driven in the opposite direction to lower the table. Therefore, overload does not occur in the motor, and the possibility of malfunction is reduced, thereby increasing the lifespan of the motor.

In addition, according to this embodiment, by installing at least two or more lifting columns on the left and right sides to support the monitor support shelf, shaking is prevented when an impact is applied to the monitor support shelf, and the width of the monitor support shelf is made larger than before. There are other effects that can be designed into.

Figure 1 is an exploded view of a height-adjustable table according to an embodiment of the present invention.
Figure 2 is a perspective view of a height-adjustable table according to an embodiment of the present invention.
Figure 3 is a diagram showing the use state of the height-adjustable table according to an embodiment of the present invention.
Figure 4 is a flowchart showing an obstacle control algorithm of a control box according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. When adding reference signs to components in each drawing, it should be noted that the same components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, when describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

In describing the components of the embodiment according to the present invention, symbols such as first, second, i), ii), a), and b) may be used. These codes are only used to distinguish the component from other components, and the nature, sequence, or order of the component is not limited by the code. In the specification, when a part is said to 'include' or 'have' a certain element, this means that it does not exclude other elements, but may further include other elements, unless explicitly stated to the contrary. .

Figure 1 is an exploded view of a height-adjustable table according to an embodiment of the present invention.

Figure 2 is a perspective view of a height-adjustable table according to an embodiment of the present invention.

Figure 3 is a diagram showing the use state of the height-adjustable table according to an embodiment of the present invention.

1 to 3, the height-adjustable table 100 according to an embodiment of the present invention includes a first lifting column (110), a second lifting column (120), and a monitor support. A monitor support shelf (130), a keyboard tray (140), a lower pedestal (150), an obstacle detection sensor (not shown), and a control box (not shown) are all included. or partially included.

The first lifting column 110 and the second lifting column 120 are two-stage electric columns with a built-in controller (not shown).

The first lifting column 110 and the second lifting column 120 are driven by receiving power from a power supply (not shown), and are configured to raise or lower in combination with the monitor support shelf 130 formed in a predetermined shape. .

The first lifting column 110 includes an upper column and a lower column that are elastically coupled.

The upper column is inserted into the lower column so that it can slide inside the lower column, and a coupling hole is formed at the upper end of the upper column. A motor (not shown) may be inserted into the coupling hole, but the location of the motor is not limited to this.

The lower column includes a hollow portion (not shown) inside so that the upper column can slide. The bottom of the lower column includes a support portion (not shown) that supports the lower column from the lower support 150. Additionally, the first lifting column 110 includes a box-shaped housing.

The second lifting column 120 is different from the first lifting column 110 only in the position where it is coupled to the monitor support shelf 130, and its structure and function are the same as those of the first lifting column 110, so detailed description is provided. Omit it.

The monitor support shelf 130 can be made of various materials depending on the purpose, such as plywood, lamis, and steel, and the material can be selected to suit the user's purpose, such as a work desk or workbench. However, the description of the height-adjustable table 100 according to an embodiment of the present invention focuses on a computer desk that holds a monitor and a keyboard.

The height of the monitor support shelf 130 can be adjusted according to the rise or fall of the first lifting column 110 and the second lifting column 120.

The monitor support shelf 130 includes at least two through holes so that the first lifting column 110 and the second lifting column 120 can be coupled. Here, the through hole means a hole having the same shape as the first lifting column 110 and the second lifting column 120.

A first lifting column 110 is coupled to the left through hole of the monitor support shelf 130, and a second lifting column 120 is coupled to the right through hole.

The monitor support shelf 130 rises or falls together as the first lifting column 110 and the second lifting column 120 rise or fall.

The height-adjustable table 100 according to an embodiment of the present invention necessarily means that the first lifting column 110 and the second lifting column 120 are movably coupled to the through hole formed in the monitor support shelf 130. It's not like that. The monitor support shelf 130 and the first lifting column 110 and the second lifting column 120 may be coupled so as not to move. That is, in the combined state, when the first lifting column 110 and the second lifting column 120 are driven to become longer in length, the monitor support shelf 130 rises from the ground, and when driven to become shorter, the monitor support shelf 130 is lowered to be closer to the ground. do.

The keyboard tray 140 is configured to be combined with the monitor support shelf 130. The keyboard tray 140 rises or falls together with the monitor support shelf 130 as it rises or falls.

One end of the lower stand 150 is coupled to the first lifting column 110, and the other end is coupled to the second lifting column 120. The first lifting column 110 and the second lifting column 120 rise or fall while being supported by the lower support. That is, when the first lifting column 110 and the second lifting column 120 rise or fall, the lower stand 150 does not move, and only the monitor support shelf 130 coupled to the upper end of each lifting column Rise or fall together.

A power supply and a control box are located inside the lower pedestal 150. The power supply device receives power from the outside and supplies power to the control box and the motors of the first lifting column 110 and the second lifting column 120.

Additionally, the lower pedestal 150 may further include PVC (Poly Vinyl Chloride) glides (not shown). Here, the PVC glide is a component that is coupled to the lower end of the lower stand 150 and prevents the lower stand 150 from slipping off the ground.

The obstacle detection sensor is coupled to the monitor support shelf 130 and detects a collision between the monitor support shelf 130 and an obstacle.

The obstacle detection sensor may be, for example, an inclination sensor, and in the case of the inclination sensor, the detected inclination information is transmitted to the control box.

The obstacle detection sensor of the height-adjustable table 100 according to an embodiment of the present invention is not limited to a tilt sensor, and may be other sensors such as a contact sensor or an impact force sensor.

The control box controls the first lifting column 110 and the second lifting column 120 to rise or fall to form the height of the monitor support shelf 130 desired by the user based on the user's input signal.

The control box switches to standby mode when the user does not input an input signal for a certain period of time. The power consumption in standby mode is extremely low, for example, 0.1 W, which has the effect of reducing power consumption.

Additionally, the control box includes 2-channel mode and 3-channel mode in addition to standby mode. Here, the 2-channel mode is a mode with a power consumption of 200 W, and the 3-channel mode is a mode with a power consumption of 300 W. The higher the power consumption, the shorter the time it takes for the lifting column to rise, and the heavier loads it can lift.

The user can change the mode of the control box to standby mode, 2-channel mode, and 3-channel mode using a wired remote control (not shown).

Additionally, the control box includes a memory chip inside. The memory chip stores the set height entered by the user. Here, the set height refers to a preset height frequently used by the user because it takes unnecessary time to adjust the height of the monitor support shelf 130 every time the user uses the height adjustment table 100.

Users can transmit input signals to the control box using a wired remote control. Here, the input signal may be, for example, a rise signal of a lifting column, a mode switching signal, or a storage signal. Here, the storage signal refers to the signal that the wired remote control transmits to the control box to save the set height. Meanwhile, the mode switching signal is a signal for switching the power mode of the control box.

This explains how the user can save the set height in the control box. First, the user adjusts the height of the first lifting column 110 and the second lifting column 120 using an up button (not shown) or a down button (not shown). When the height of the monitor support shelf 130 is set by adjusting the height of the lifting column, the user presses the set height save button to transmit an input signal, for example, a save signal, to the control box.

The control box that receives the signal stores the current height information of the first lifting column 110 and the second lifting column 120 in a memory chip.

Afterwards, when the user uses the height adjustment table 100 again, the initial value can be retrieved using pre-stored set height information without separately adjusting the height of the monitor support shelf 130.

The control box may be configured in a predetermined shape. For example, the control box may be configured to have the same width as the first lifting column, and the width may be 38 mm.

Additionally, the control box includes a function to prevent a collision between an obstacle and the monitor support shelf 130 using the tilt information of the monitor support shelf 130 received from an obstacle detection sensor.

The algorithm by which the control box performs the collision prevention function using tilt information is explained in more detail in FIG. 4.

The height-adjustable table 100 according to an embodiment of the present invention includes at least two or more lifting columns.

When a table is constructed using one lifting column, the size of the monitor support shelf 130 coupled to the lifting column is limited. The fact that the size of the monitor support shelf 130 is limited means that when designing the monitor support shelf 130, it cannot be designed in a large size and must be designed in a small size.

However, the height-adjustable table 100 according to an embodiment of the present invention provides structural stability by combining the first lifting column 110 and the second lifting column 120 on the left and right sides of the monitor support shelf 130, respectively. In addition, the monitor support shelf 130 can be designed without being limited by the size of the monitor support shelf 130.

For example, in a table where one lifting column is combined, the lifting column must be located in the center of the table. Therefore, if the width of the table top increases beyond a certain width on the left and right, the lifting column cannot stably support the table top.

On the other hand, in one embodiment of the present invention, the monitor support shelf 130 can be designed in various sizes such as 1,000 mm, 1,200 mm, and 1,400 mm by combining one lifting column on the left and right sides.

Additionally, the height-adjustable table 100 according to an embodiment of the present invention can prevent shaking compared to a table combining only one lifting column.

When an impact is applied to the left or right side of a table that combines only one lifting column at the center of the top plate, the top plate swings significantly to the left or right. This is because the lifting column that supports the top plate is located in the center, and the shock is applied to the left and right sides of the top plate that are far from the lifting columns, so the lifting column receives a larger moment and the top plate shakes significantly.

On the other hand, in one embodiment of the present invention, for example, by combining one lifting column on the left and right sides, even if an impact is applied to the left or right side, the impact applied to the left side is caused by the first lifting column 110 coupled to the left side being connected to the monitor support. The shelf 130 is supported, and the impact applied to the right side is caused by the second lifting column 120 coupled to the right side supporting the monitor support shelf 130, so that the first lifting column 110 and the second lifting column 120 This supports the monitor support shelf (130) without shaking from side to side. That is, the moment applied to the monitor support shelf 130 is reduced by placing the lifting columns on the left and right sides. Therefore, even if the monitor support shelf 130 receives the same impact, it has the effect of reducing shaking compared to a table combined with a single lifting column.

Figure 4 is a flowchart showing an obstacle control algorithm of a control box according to an embodiment of the present invention.

Referring to FIG. 4, the control box controls the first lifting column 110 and the second lifting column 120 to rise based on the user's input signal (S410).

As the first lifting column 110 and the second lifting column 120 rise, the monitor support shelf 130 also rises. At this time, the obstacle detection sensor detects whether the monitor support shelf 130 collides with an obstacle. . For example, the tilt sensor detects the angle at which the monitor support shelf 130 is tilted when the monitor support shelf 130 collides with an obstacle. The obstacle detection sensor transmits the detected obstacle information, for example, tilt information, to the control box.

The control box determines whether the monitor support shelf 130 has collided with an obstacle based on the obstacle information (S420).

If the control box determines that the monitor support shelf 130 has not hit an obstacle, the control box uses the first lifting column 110 and the second lifting column ( 120) is controlled to rise (S450).

Meanwhile, if the control box determines that the monitor support shelf 130 has collided with an obstacle, the control box stops operating the first lifting column 110 (S430).

Thereafter, the control box determines whether to continue to raise the first lifting column 110 and the second lifting column 120 according to the tilt angle received from the obstacle detection sensor (S440).

If it is determined that the transmitted tilt information is below the preset reference value, the control box determines that the monitor support shelf 130 can rise and causes the first lifting column 110 and the second lifting column 120 to rise again. Control (S450).

On the other hand, if it is determined that the transmitted tilt information is greater than the preset reference value, the control box determines that the monitor support shelf 130 can no longer rise, and the first lifting column 110 and the second lifting column 120 ) is controlled to descend (S460).

The above description is merely an illustrative explanation of the technical idea of the present embodiment, and those skilled in the art will be able to make various modifications and variations without departing from the essential characteristics of the present embodiment. Accordingly, the present embodiments are not intended to limit the technical idea of the present embodiment, but rather to explain it, and the scope of the technical idea of the present embodiment is not limited by these examples. The scope of protection of this embodiment should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of this embodiment.

110: first lifting column 120: second lifting column
130: Monitor support shelf 140: Keyboard tray
150: lower stand

Claims (13)

A first lifting column configured to rise or fall based on a user's input signal;
a second lifting column configured to rise or fall in the same manner as the first lifting column based on the input signal;
A monitor configured to have one end through which the first lifting column is coupled and the other end through which the second lifting column is coupled, and to be able to rise or fall depending on the rise or fall of the first lifting column and the second lifting column. monitor support shelf;
An obstacle detection sensor that detects a collision between the monitor support shelf and an obstacle that impedes movement of the monitor support shelf when the monitor support shelf rises or lowers and detects an angle at which the monitor support shelf is tilted;
If it is determined that the monitor support shelf has collided with the obstacle using the information received from the obstacle detection sensor when the monitor support shelf rises or lowers, the monitor support shelf is moved in the direction opposite to the direction of movement. A control box that controls the first lifting column and the second lifting column; and
A lower pedestal coupled to the first lifting column and the second lifting column and supporting the first lifting column and the second lifting column.
A height-adjustable table comprising: delete According to clause 1,
The information includes impact force information and inclination information,
The control box is,
When it is determined that the monitor support shelf collided with the obstacle using the impact force information when the monitor support shelf rises, the tilt information is compared with a preset reference value,
When it is determined that the tilt information is greater than the reference value, controlling the first lifting column and the second lifting column to lower the monitor support shelf,
Height-adjustable table, characterized in that when it is determined that the tilt information is less than or equal to the reference value, the first lifting column and the second lifting column are controlled so that the monitor support shelf continues to rise. According to clause 3,
When it is determined that the monitor support shelf collided with the obstacle using the impact force information when the monitor support shelf descends, the tilt information is compared with the reference value,
When it is determined that the tilt information is greater than the reference value, controlling the first lifting column and the second lifting column so that the monitor support shelf rises,
Height-adjustable table, characterized in that when it is determined that the tilt information is less than or equal to the reference value, the first lifting column and the second lifting column are controlled so that the monitor support shelf continues to descend. According to clause 1,
The control box is,
It further includes a memory chip that stores the set height of the monitor support shelf,
A height-adjustable table, characterized in that the user can input the set height into the control box. According to clause 1,
The control box is,
A height-adjustable table characterized by power consumption of 0.1 W or less when in standby mode. According to clause 1,
The control box is,
A height-adjustable table, characterized in that it switches from a 2-channel mode with a power of 200 W to a 3-channel mode with a power of 300 W based on the user's mode change signal. According to clause 1,
The control box is,
It has the same width as the first lifting column,
Height-adjustable table characterized by a height of 38 mm. According to clause 1,
further comprising PVC glides,
The PVC glide is,
A height-adjustable table coupled to the lower end of the lower pedestal to prevent slipping so that the lower pedestal does not slip off the ground. According to clause 1,
A height-adjustable table, characterized in that the first lifting column and the second lifting column are two-stage lifting columns. According to clause 1,
Further includes a wired remote control,
A height-adjustable table, wherein the user transmits the input signal to the control box using a wired remote control. According to clause 11,
The input signal is a storage signal that stores the set height,
Height-adjustable table, characterized in that the user transmits the storage signal to the control box using the wired remote control. According to clause 1,
A height-adjustable table coupled to the monitor support shelf and further comprising a keyboard tray that moves integrally with the monitor support shelf.

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