KR20120009752A - Height adjustable apparatus of a desk - Google Patents

Abstract

PURPOSE: A device for adjusting the height of an upper plate of a desk is provided to adjust the height of the upper plate according to the physical condition of a user or work environment. CONSTITUTION: A device for adjusting the height of an upper plate of a desk comprises: a supporting plate(10) which is supported by a leg member; an upper plate(20) which is dually arranged on the top of the supporting plate; and a height adjusting unit(40) which is arranged between the supporting plate and upper plate and adjusts the height of the upper plate by being folded and unfolded. The height adjusting unit includes a plurality of X-shaped crossbars(43), a plurality of upper and lower moving shafts(42,41), a plurality of rotation rollers(45), a plurality of upper and lower guide rails, a rotary plate(48), and a cylinder member(50).

Description

Height adjustable apparatus of a desk

The present invention relates to a top plate height adjusting device of a desk, and more particularly, to a top plate height adjusting device of the desk that can adjust the height of the top plate of the desk according to the user's physical condition or working environment.

As is well known, a conventional desk has a structure in which each leg member is fixedly installed at the bottom of the top plate, and the height of the desk is determined by the height of the leg member.

That is, most desks in the related art do not have a height adjusting structure, and have a fixed height in accordance with the original designed and manufactured standard.

However, children or adolescents, because they grow quickly within a short period of time, if the desk used by their desks to maintain a fixed height does not fit the growth dimensions had a disadvantage that you can not use the desk in the correct posture.

For example, when a group of desks are purchased at a school and placed in each classroom, a desk from a small size to a large size is appropriate for each classroom instead of purchasing and distributing the desks according to the physical condition of every student. In general, students with large physiques and students with small physique are all assigned the same desk.

Recently, various types of height adjustment devices have been developed and applied to various desks used in homes, schools, offices, and the like. In particular, the parish desks used in elementary schools, middle and high schools, etc. Increasingly, the height of the desk for adjusting the height is made to be freely adjusted according to the physical condition.

By the way, the height adjusting device applied to the desk disclosed in the prior art was configured to adjust the height by varying the length of the leg member for supporting the top plate.

For example, the Republic of Korea Utility Model Registration No. 221850 (2001.4.16. Announcement) discloses a desk height adjustment device that is configured to adjust the height by installing a height adjustment on the bottom of the support for supporting the desk top plate, , Republic of Korea Utility Model Registration No. 231079 (2001.7.19. Announcement) is installed so that the fixing member and the moving member to act as a bridge overlap each other, it is easy to adjust the height of the table top plate, as well as easily adjust the angle of the top plate with only one drive unit Desk height and angle adjustment device is disclosed, Korean Utility Model Registration No. 243547 (2001.10.8. Announcement) to adjust the height of the desk by adjusting the distance between the top plate and the support of the desk using a link device. The height-adjusting desk which comprises is disclosed.

In addition, the Republic of Korea Patent Publication No. 2005-65073 (published on May 29, 2009) using the rack gear and pinion gear and the handle used to drive it, the height of the top plate that can simply and conveniently adjust the height of the desk top plate A desk having a device is disclosed, and Republic of Korea Patent No. 795021 (August 1, 2008) discloses that both ends of the female and male threads, the gear box and the gear box are respectively installed in a pair of vertical members, respectively. A device for adjusting the height of a desk including a connecting rod is disclosed.

As described above, various methods have been researched and presented to efficiently adjust the height of the desk according to the physical condition of the user by allowing the height of various desks to be adjusted by a simpler operation method. And of course, in some cases, the components are complex, the production is complicated, the use of the inconvenience was disadvantageous.

In particular, as described above, the conventional height adjusting device of the desk top plate is a type of adjusting the height by varying the height of the leg member is mainly proposed, regardless of the shape of the leg member can adjust the height of the desk top plate The necessity of the present plan is also suggested.

Therefore, the present invention has been researched and developed to provide a height adjustment device of a new type of desk top plate rather than a type using a leg member to adjust the height of the desk top as in the prior art.

That is, an object of the present invention is configured to adjust the height of the top of the desk regardless of the shape of the leg member, to provide a height adjustment device of the top of the desk that can adjust the height of the top of the desk according to the user's physical conditions or working environment, etc. There is.

The present invention for achieving the above object and the support plate is fixed and supported by the leg member; An upper plate disposed in double on the support plate so as to be movable; It is disposed between the support plate and the top plate is provided with a height adjustment device including a height adjustment means including a U-shaped crossbar to adjust the height while being pushed downward and extended upward under any driving force. Is in.

Here, the height adjusting means according to the present invention is arranged with a predetermined interval between the support plate and the upper plate and a plurality of U-shaped crossbar for driving up and down based on the hinge point of the center, and the U-shaped crossbar on all sides A plurality of upper and lower movable shafts for horizontally connecting the plurality of U-shaped crossbars through the end portions, and a plurality of rotary rollers respectively assembled at each end of the upper and lower movable shafts, and the upper and lower surfaces of the support plate. A plurality of upper and lower guide rails respectively disposed to guide the movement of the rotary rollers and first and second connecting links disposed to be connected to each other on the plurality of upper moving shafts, respectively, are connected to the plurality of upper moving shafts. A rotating plate assembled and mounted on the bottom of the upper plate and rotating in a zigzag manner based on the rotating point, and a sphere required for rotating the rotating plate To provide the force has a configuration comprising a cylinder member connected to one side of the rotating copper plate.

At this time, between one side of the rotating plate and the bottom surface of the upper plate is connected to the opposite side opposite to the cylinder member and is elastically provided in the rotational direction of the rotating plate while providing an elastic restoring force is preferably further provided.

And, the rear end of the cylinder member is preferably provided with an operating line for the user to control the piston drive of the cylinder member through the operating unit.

In addition, the rotary roller is formed in the form of a tooth, the upper and lower guide rails are each formed in a depressed structure, and one side is formed with a plurality of stopper grooves to engage the teeth of the rotary roller to perform a stopper function, respectively. It is preferable.

According to the present invention, by placing the support plate and the upper plate in a double and between the user and the height adjustment means including a U-shaped crossbar to adjust the height while being pushed downwards and received upwards under any driving force. There is an effect that can easily adjust the height of the top of the desk according to physical conditions or working environment.

In particular, the present invention by providing a height adjustment device of the desk top plate of a new type other than the type using the leg member, there is an effect that can adjust the height of the desk top plate regardless of the shape of the leg member.

1 is a perspective view showing the configuration of the height adjustment device of the top of the desk according to the invention.
Figure 2 and Figure 3 is an exemplary view shown on the side to show the operating state of the top plate height adjustment device of the desk according to the present invention, respectively.
4 and 5 are each an exemplary view of the upper plate to show the operating state of the height adjustment device of the desk according to the present invention.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the top plate height adjustment device of the desk according to the present invention will be described in detail.

In this process, the thicknesses of the lines or the size of the components shown in the drawings may be exaggerated or partially omitted for clarity and convenience of description. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

As shown in Figure 1, the upper plate height adjustment device of the desk according to the present invention is a support plate 10 is supported and fixed to the leg member 30, and the upper plate is disposed in a double to move up and down on the support plate 10 Height adjustment means including a U-shaped crossbar 44, which is disposed between the support plate 10 and the upper plate 30 and is pushed downward and stretched upward under an arbitrary driving force to act as a height adjustment. Equipped with 40.

Here, the height adjustment means 40 is a device that can adjust the height via the U-shaped cross bar 44, a variety of to support the drive and transfer any driving force required for height adjustment of the U-shaped cross bar (44). Contains components.

First, the U-shaped cross bar 44 is disposed between the support plate 10 and the upper plate 30 to be spaced apart from each other at a predetermined interval so as to be provided with a plurality of upper and lower driving relative to the center hinge point 44. desirable.

That is, the U-shaped crossbar 44 has a structure in which the upper and lower heights according to the U-shaped structure are variable while being pushed downward and extended upward based on the hinge point 44 of the center under an arbitrary driving force.

The reason why the plurality of U-shaped crossbars 44 are arranged at regular intervals between the support plate 10 and the upper plate 30 is to provide a more stable height adjustment structure.

In this case, the plurality of U-shaped crossbars 43 arranged at a predetermined interval should be interlocked in the same way by receiving a predetermined driving force. To this end, a plurality of upper and lower movable shafts 42 and 41 horizontally connecting the plurality of U-shaped crossbars 43 to the plurality of U-shaped cross bars 43 while connecting the four end portions of the U-shaped cross bars 43. It is fastened and assembled.

That is, one lower movement shaft 41 is horizontally fastened and assembled on one side of the lower side of the plurality of U-shaped crossbars 43 arranged at a predetermined interval, and the other side of the lower side of the plurality of U-shaped crossbars 43 on the opposite side is also provided. As the lower movable shaft 41 is fastened and assembled, the plurality of lower movable shafts 41 have a structure in which side-bottom ends of the plurality of U-shaped crossbars 43 are supported side by side.

In addition, in the same shape as the plurality of lower movable shaft 41, one upper movable shaft 42 is horizontally fastened and assembled on one side of the upper side of the plurality of U-shaped crossbars 43, and the plurality of opposite U-shaped crossbars 43 Another upper moving shaft 42 is fastened and assembled on one side of the upper side, so that the plurality of upper moving shafts 42 support the side-by-side between the upper ends of the plurality of U-shaped crossbars 43 side by side. .

Accordingly, the upper and lower movable shafts 42 and 41 will have a structure that is integral with the plurality of U-shaped crossbars 43.

At this time, each end of the upper and lower movement shafts (42, 41) is to be assembled to the rotary roller 45, respectively.

The rotary roller 45 has the upper and lower movement shafts 42 and 41 interlocked in the process of adjusting the height while the plurality of U-shaped crossbars 43 are pushed downward and extended upward. By supporting the reciprocating linear motion of the lower moving shafts 42 and 41, the rotary roller 45 has a plurality of images disposed on the upper surface of the support plate 10 and the lower surface of the upper plate 20, respectively. The movement is guided by the lower guide rails 21 and 11.

That is, a plurality of lower guide rails 11 are disposed on the upper surface of the support plate 10 at intervals corresponding to the length widths of the plurality of lower movement shafts 41, and similarly, the bottom surface of the upper plate 20. A plurality of upper guide rails 21 are arranged at intervals corresponding to the length width of each of the plurality of upper movable shafts 42.

In this case, the upper and lower guide rails 21 and 11 are disposed on the support plate 10 and the upper plate 20 respectively in a recessed cross-sectional structure, such that the upper and lower guide rails 21 and 11 are rotated between the upper and lower guide rails 21 and 11. 45 is inserted and seated to guide the reciprocating linear movement.

Of course, the structure of the upper and lower guide rails (21, 11) is not limited to having a cross-sectional structure, is formed in the groove shape (not shown) on the support plate 10 and the upper plate 20 on this groove Rotating roller 45 may be inserted to be inserted to guide the reciprocating linear movement. As such, the upper and lower guide rails 21 and 11 may have a structure capable of guiding a reciprocating linear movement of the rotary roller 45.

And, if the rotary roller 45 is formed in the form of a gear, a plurality of stoppers for engaging the teeth of the rotary roller 45 to the stopper function on one side of the upper and lower guide rails (21, 11), respectively. Preferably, the groove 12 is formed.

That is, while the gear of the rotary roller 45 formed in the form of a tooth is fitted into the stopper groove 12 and the rotary roller 45 does not rotate, the upper and lower parts do not slip on the guide rails 21 and 11. It will be desirable to be stably fixed by the stopper groove 12, so that the height adjustment state by the plurality of U-shaped crossbars 43 can be stably maintained.

Meanwhile, in the present invention, the plurality of U-shaped crossbars 43 are pushed and unfolded while transmitting a driving force for adjusting the height, and can rotate about the pivot point 49 on the bottom surface of the upper plate 20. It is equipped with a rotating plate 48 that is assembled.

The rotating plate 48 is connected to the first and second connecting links 46 and 47 which are arranged to be opposed to each other on the plurality of upper movable shafts 42 arranged side by side with the U-shaped crossbar 43 therebetween. It is connected to the plurality of upper moving shafts 42 and assembled on the bottom surface of the upper plate 20 and arranged to zigzag to rotate based on the pivot point 49.

That is, one side of the rotating plate 48 is connected to the upper moving shaft 42 of one side (the front in the drawing of Figure 1) through the first connecting link 46, the other side of the rotating plate 48 is second It is connected to the other side of the upper movement shaft 42, which is disposed on the opposite side via the link 47 (rear view in FIG. 1).

Here, the first and second connection links 46 and 47 are connected to the pivoting plate 48 so as to be located at opposite sides with respect to the pivoting point 49 which is the center point of the pivoting plate 48 and the pivoting plate 48. According to the rotation direction of the force is applied in the opposite direction mutually arranged in a structure that is interlocked.

Through such a connecting structure between the rotating plate 48 and the plurality of upper movable shafts 42, the driving force according to the rotation of the rotating plate 48 is sequentially transmitted to the plurality of U-shaped crossbars 43 as they are. It is.

At this time, in order to provide the driving force necessary for the rotation of the rotating plate 48, one side of the rotating plate 48, the cylinder member 50 for the common pipe is disposed.

That is, the cylinder member 50 is a power generator for providing any driving force in the height adjustment means 40 according to the present invention, the cylinder member 50 is to provide a driving force through the piston movement.

Here, the cylinder member 50 that provides power through the piston drive is merely a universal technique that is commonly used for holding, and a detailed description thereof will be omitted.

And, the rear end of the cylinder member 50 is preferably further provided with an operating string 52 that allows the user to control the piston drive of the cylinder member 50 via the operating unit 51.

That is, when the user needs to adjust the height of the operation line 52, the user pulls the operation line 52, driving the cylinder member 50 to rotate the upper plate sequentially as the rotation plate 48 is rotated As the coaxial 42 transmits the driving force to the plurality of U-shaped crossbars 43 and pulls them inward, the height of the upper plate 20 is adjusted upward.

Of course, the operation line 52 is simply not shown in addition to the form of the line that can be pulled by the user, but not shown, the user presses a button to drive the small motor by the power source operating unit 51 mediated to the cylinder member 50 It is possible to change the design in a form that can operate.

Such a design change for operating the cylinder member 50 is a generalized technique that is already commonly used in various fields, and details thereof will be omitted.

 In addition, it is preferable that an elastic member 53 is further provided on the opposite side of the rotation plate 48 connected to the cylinder member 50 to provide elastic resilience while being stretched and contracted along the rotation direction of the rotation plate 48.

That is, the elastic member 53 has a structure in which one side is connected and fixed to the bottom surface side of the upper plate 20, the other side is connected to the opposite side of the rotating plate 48 to face the cylinder member 50, mutually, By the operation of the cylinder member 50 will be stretched in accordance with the direction in which the rotating plate 48 is rotated to have an elastic restoring force.

The operation state of the height adjusting means 40 according to the present invention having such a configuration will be described in more detail with reference to FIGS. 2 to 5 as follows.

2 shows the state when the height of the upper plate is maintained at the lowest state in the state in which the U-shaped crossbar 43 is pressed downward.

In such a state, as shown in FIG. 3, when the U-shaped crossbar 43 is extended upward with respect to the hinge point 44, the height of the upper plate 20 is increased, as shown in FIGS. 4 and 5. It becomes possible by rotating the said rotation board by the same structure.

That is, the shape shown in FIG. 4 may be designed in such a state that the height of the top plate may be located between the minimum and the best middle, and in some cases, the height of the top plate may be designed to be in the lowest state. This may vary depending on how to set the length that the rotary roller can move within the upper and lower guide rails.

Here, the shape shown in FIG. 4 will be described as being limited to the case where the height of the upper plate is located about halfway from the set height.

That is, as shown in FIG. 4, if the top plate is about to be raised in a state in which the top plate is positioned about halfway, as shown in FIG. 5, the user grasps the operation line 52 and pulls the cylinder member. When driving the 50, the piston of the cylinder member 50 is extended to rotate the rotating plate 48 in the counterclockwise direction.

Accordingly, the second connecting link 47, which is arranged to be connected to the pivot plate 48 in the same direction as the cylinder member 50, pulls the upper movement shaft 42 inwards, and is similarly opposite to the cylinder member 50. The first connecting link 46, which is arranged to be connected to the pivot plate 48 in the direction, pulls the upper movable shaft 42 on the opposite side inward, so that each end of the U-shaped crossbar is connected to the upper movable shaft 42. 43 is pulled inward with respect to the hinge point 44, and as a result, the U-shaped crossbar 43 raises the upper plate 20 upwards to adjust the height thereof.

At this time, the rotary rollers 45 located at both ends of the upper moving shaft 42 are guided along the upper guide rail 21 to move toward the center of the upper plate 20.

In addition, according to the X-shaped drive of the U-shaped crossbar 43, the lower movement shaft 41 integrally connected to the lower side is also moved inward, and the movement of the lower movement shaft 41 is lowered through the rotation roller 45. It will be guided along the guide rail (11).

And, if you want to lower the height of the top plate 20 in the state in which the height is adjusted by raising the top plate 20, the operation direction of the cylinder member 50 is to operate in the opposite direction to the bar, the present invention In this case, by pressing the upper plate 20 forcibly by the user, the U-shaped crossbar 43 can be configured to be pressed down while restoring the cylinder member 50 to its original state.

At this time, the elastic member 53, which is stretched from the opposite side of the cylinder member 50 serves to assist in returning to the initial state more smoothly through the elastic restoring force.

Of course, it is natural that the cylinder member 50 may be configured to operate by an arbitrary power so that the original state can be restored, rather than being pushed by the user.

And, in the accompanying drawings, the direction of increasing the height of the upper plate 20 is designed to rotate when the rotating plate 48 counterclockwise, but is not limited thereto, and the cylinder member 50 and the By changing the connection state of the copper plate 48 and the connection state of the first and second connection links 46 and 47, the upper movable shaft 42, and the rotary plate 48, the rotary plate 48 rotates clockwise. Of course, when the height of the top plate 20 can be configured to rise.

Although the present invention has been described with reference to the preferred embodiments shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent embodiments are possible therefrom. .

Accordingly, the true scope of protection of the present invention should be defined only by the appended claims.

10: support plate 11: lower guide rail
12: stopper groove 20: top plate
21: upper guide rail 30: leg member
40: height adjustment means 41: lower moving shaft
42: upper moving shaft 43: crossbar
44: hinge point 45: rotating roller
46: first connection link 47: second connection link
48: meeting board 49: meeting point
50: cylinder member 51: operating part
52: operating line 53: elastic member

Claims (5)

A support plate 10 supported and fixed by the leg member 30;
An upper plate 30 disposed to be dually movable upward and downward from an upper portion of the support plate 10;
It is provided between the support plate 10 and the upper plate 30 is provided with a height adjustment means 40 including a U-shaped crossbar 44, which is pressed down and received upwards and receives a predetermined driving force and serves to adjust the height. Height adjustment device of the top of the desk, characterized in that. The method of claim 1,
The height adjusting means 40 is disposed between the support plate 10 and the upper plate 30 at a predetermined interval to face each other, a plurality of U-shaped cross-bar 43 to drive up and down relative to the hinge point 44 of the center ), A plurality of upper and lower movable shafts 42 and 41 for horizontally connecting the plurality of U-shaped crossbars 43 through four-way end portions of the U-shaped crossbar 43, and the upper and lower movable shafts 42. And a plurality of rotary rollers 45 respectively assembled at each end of each of the plurality of ends of the support plate 10 and a lower surface of the upper surface of the support plate 10 and the lower surface of the upper plate 20 to guide the movement of the rotary rollers 45. The upper and lower guide rails 21 and 11 and the plurality of upper moving shafts 42 and the first and second connecting links 46 and 47 arranged to be opposed to each other on the plurality of upper moving shafts 42, respectively. Connected and assembled at the same time on the bottom of the top plate 20 is rotated zigzag based on the pivot point 49 Copper plate 48 and the top plate adjuster desk characterized in that it includes the times the cylinder member 50 is connected to one side of the rotating copper plate 48 to provide a driving force required for the rotation of the copper plate (48). The method of claim 2,
Between one side of the rotating plate 48 and the bottom surface of the upper plate 20 is connected to the opposite side opposite to the cylinder member 50 and elastic in accordance with the rotation direction of the rotating plate 48 to provide an elastic restoring force Height adjustment device of the upper plate of the desk, characterized in that the member 53 is further provided. The method according to claim 2 or 3,
Adjusting the height of the upper plate of the desk, characterized in that the rear end of the cylinder member 50 is further provided with an operating line 52 for the user to control the piston drive of the cylinder member 50 via the operating unit 51. Device. The method according to claim 2 or 3,
The rotary roller 45 is formed in the form of gears,
The upper and lower guide rails 21 and 11 are each formed in a depressed shape, and a plurality of stopper grooves 12 are formed on one side thereof to engage a gear of the rotary roller 45 to perform a stopper function. Height adjustment device of the top of the desk characterized by.

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