KR100913380B1 - Support leg high and low device of desk and bench - Google Patents

Support leg high and low device of desk and bench Download PDF

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Publication number
KR100913380B1
KR100913380B1 KR1020090036442A KR20090036442A KR100913380B1 KR 100913380 B1 KR100913380 B1 KR 100913380B1 KR 1020090036442 A KR1020090036442 A KR 1020090036442A KR 20090036442 A KR20090036442 A KR 20090036442A KR 100913380 B1 KR100913380 B1 KR 100913380B1
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KR
South Korea
Prior art keywords
groove
unlocking
slide
support leg
rod
Prior art date
Application number
KR1020090036442A
Other languages
Korean (ko)
Inventor
이현용
Original Assignee
이현용
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 이현용 filed Critical 이현용
Priority to KR1020090036442A priority Critical patent/KR100913380B1/en
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Publication of KR100913380B1 publication Critical patent/KR100913380B1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/14—Tables with tops of variable height with pins coacting with holes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B13/00—Details of tables or desks
    • A47B13/02—Underframes
    • A47B13/021—Fastening devices of the feet or legs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/04—Tables with tops of variable height with vertical spindle
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/08—Tables with tops of variable height with clamps acting on vertical rods
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/34—Chairs or stools with vertically-adjustable seats with pins coacting with holes or bolt-and-nut adjustment

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  • Tables And Desks Characterized By Structural Shape (AREA)

Abstract

The present invention relates to a height adjustment tool of the book, the support base for legs.

To this end, the present invention is a book installed between the support leg and the frame, the height adjustment port for adjusting the height of the support for the leg is composed of an unlocking portion coupled to the support leg and a rod coupled to the lower portion of the frame, the unlocking portion The divided front body and the rear body are welded, the front body has a first slide groove is formed on both sides of the first insertion groove, the rear body is formed with a second slide groove on both sides of the second insertion groove The rod is inserted into an insertion groove in which the first insertion groove and the second insertion groove are butted, and an unlocking bar having an unlocking protrusion is inserted into the slide groove in which the first slide groove and the second slide groove are butted. A guide groove is formed in the front body corresponding to the unlocking protrusion to receive a spring elasticity in the guide groove, and the rod In the lower part of the frame is welded to the part, the pushing piece is welded to the lower part, a plurality of engaging grooves are formed between the frame and the pushing piece, the height adjusting opening of the support leg for the bench, the second slide Magnetics are inserted into upper and lower portions of the groove, respectively, and the unlocking protrusions are formed to protrude in a mountain shape toward the front body, and the pushing pieces are formed in plural numbers spaced apart from the lower part of the rod by a predetermined interval. It is done.

Description

Support leg high and low device of desk and bench}

The present invention relates to a height adjusting device for a book and a support leg, and in particular, a rod of a height adjusting device installed between the support leg and a frame is simultaneously drawn out by lifting a top plate or a seat of a table and a hand from a top plate or a seat. At the same time withdraw the rod is to be fixed by the adjustment.

In general, classrooms in elementary and secondary schools are equipped with desks and benches that can be used for reading and writing.

The desk is equipped with a support leg provided by bending pipes, a top plate coupled to the top of the support leg, a storage box for storing books, notes and writing instruments at the bottom of the top plate, and a bag or shoe pocket on one side of the storage box. It consists of a hook.

The stool is composed of the seat plate and the back plate coupled to the frame coupled to the upper part of the supporting leg so that the student or user can easily sit.

These books and stools are manufactured in three different sizes based on the average height of each grade. Students with average heights did not have any inconvenience in using books and stools. There were many inconveniences in using books and stools.

In order to solve this problem, the upper column having a plurality of positioning holes is coupled to the lower part of the book and the stool, the upper column is inserted into the lower column formed with the through hole, and the fixing pin is located in the through hole and the positioning. The height is adjusted to fit in the hole.

However, it was difficult to do it alone in the process of adjusting the height of the book and the stool by inserting the fixing pin after matching the positioning hole and the through hole, and the book and the stool were inclined when the inserted pin was pulled out in the reverse direction. there was.

The present invention allows the user to easily adjust the height of the book, the stool alone, and through this makes the height of the book, the stool to suit their physical conditions, if you take a lesson or study for a long time, less fatigue It is to improve the efficiency of.

The present invention is the height adjustment sphere (A) for adjusting the height of the book, the support for the bench installed between the support leg 30 and the frame 40, the unlocking portion 10 and the frame ( 40 is composed of a rod 20 coupled to the lower portion, the unlocking portion 10 is the front body (10a) and the rear body (10b) is divided, the front body (10a) is welded First slide grooves 102a are formed at both sides of the first insertion groove 101a, and the second slide grooves 102b are formed at both sides of the second insertion groove 101b at the rear body 10b. The rod 20 is inserted into the insertion groove 101 in which the first insertion groove 101a and the second insertion groove 101b are opposed to each other, and the first slide groove 102a and the second slide groove 102b are provided. The unlocking bar 11 having the unlocking protrusion 111 is inserted into the butted slide groove 102, and the guide groove 103 is provided inside the front body 10a corresponding to the unlocking protrusion 111. Forming The slide fixing piece 13 receiving the spring 12 elasticity is inserted into the guide groove 103, and the rod 20 is welded to the lower end of the frame 40 at an upper portion thereof, and a pushing piece at the lower portion thereof. In the height adjustment opening (A) of the book, the support leg for which the welding part 21 is welded, and the locking groove 22 is formed in multiple numbers between the said frame 40 and the pushing piece 21, The said 2nd The magnetic 14 is inserted into the upper and lower portions of the slide groove 102b, respectively, and the unlocking protrusion 111 is formed to protrude in a mountain shape toward the front body 10a, and the pushing piece 21 Is characterized in that formed in a plurality of spaced apart at a predetermined interval from the lower portion of the rod (20).

The present invention is to lift the upper plate of the desk or the seat plate of the desk and at the same time the rod of the height adjustment device installed between the support leg and the frame is drawn out, and at the same time the withdrawal of the rod from the top plate or seat plate is fixed by the control By doing so, it is possible to obtain the effect of easily adjusting the height of books and stools alone.

In addition, the height of the books and stool to suit their physical conditions, if you sit for a long time or study, so that less fatigue to improve the efficiency of the class.

An embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a perspective view of a desk having a height adjustment device according to the present invention, Figure 2 is an exploded perspective view of the height adjustment device according to the present invention, Figure 3 is a rear exploded perspective view of the unlocking portion constituting the height adjustment device according to the present invention. 4A to 4E are cross-sectional views showing an operating state of the height adjusting device according to the present invention, FIG. 5 is a perspective view of a stool having a height adjusting device according to the present invention, and FIG. 6 is a height adjusting device according to the present invention. It is a perspective view which shows another Example of a stool having.

Book, stool height adjusting device (A) according to the invention is installed between the support leg 30 and the frame 40, as shown in Figures 1 to 6 both sides of the lower side of the support leg 30 The horizontal leg 70 to which the protective cap 71 is coupled to the end is coupled to the welding joint, and the footrest 72 is welded to the upper side of the supporting leg 30 to which the horizontal leg 70 is welded. It is configured to be combined.

In the case of the desk D, the upper plate 73 is coupled to the upper portion of the frame 40, and in the case of the stool C, as shown in FIG. ) And the back plate 81 or as shown in Figure 6, the seat plate 80 and the other back plate formed integrally with the back plate 81 is configured to be coupled by screws.

The height adjustment opening (A) is composed of the unlocking portion 10 coupled to the support leg 30 and the rod 20 coupled to the lower portion of the frame 40, the unlocking portion 10 is semi-circular Each of the divided front body 10a and the rear body 10b is configured to have a cylindrical shape.

The front body 10a is formed with a first insertion groove 101a having a semicircle shape in a vertical direction or a longitudinal direction at the center thereof, and a first slide groove having a polygonal shape on both sides of the first insertion groove 101a. 102a is comprised so that it may be formed.

The front body 10a is formed with a female thread 104 to penetrate the guide groove 103 to be described later, and the female screw 104 is coupled to penetrate the male screw 151 provided in the fixing knob 15 through. The slide fixing piece 13 is comprised so that it may be pressed toward the rear body 10b.

The rear body 10b is formed with a second insertion groove 101b having the same shape as the first insertion groove 101a facing the second insertion groove 101b, and second slide grooves on both sides of the second insertion groove 101b. 102b is comprised so that it may be formed.

The magnetic bars 14 are respectively inserted into upper and lower portions of the second slide grooves 102b, and the unlocking bars 11 inserted into the second slide grooves 102b are moved upwards or downwards by magnetic force. It is configured to maintain the state continuously.

The rod 20 is inserted into the insertion groove 101 which is provided in the form of one connected space by the first insertion groove 101a and the second insertion groove 101b to be coupled to each other so as to be movable upward or downward. The unlocking bar 11 having the unlocking protrusion 111 is inserted into each of the slide grooves 102 in which the first slide grooves 102a and the second slide grooves 102b are opposed to each other. The unlocking bar 11 is coupled to move upward and downward along the slide groove 102.

The unlocking protrusion 111 is formed to protrude in a mountain form toward the front body 10a.

The guide groove 103 is formed in the front body 10a corresponding to the unlocking protrusion 111, the spring 12 is inserted into the guide groove 103, and the spring 12 is inserted. The slide fixing piece 13 is configured to be inserted into the guide groove 103 so as to receive the elasticity of the spring 12.

The slide fixing piece 13 is in the process of being drawn in and out along the guide groove 103 by the elastic force of the spring 12 inserted into the guide groove 103 in one direction, that is, from bottom to top It is configured to be provided with a function of preventing the movement of the rod 20 to move downward by being caught by the engaging groove 22 formed in the rod 20 to be described later, while allowing movement.

The slide fixing piece 13 having such a function is formed in a rectangular shape with pressing portions 131 formed at both ends thereof, and thus the inside of the guide groove 103 by the pressure of the unlocking protrusion 111 formed on the unlocking bar 11. It is comprised so that it may move while compressing the furnace spring 12. As shown in FIG.

In the state where the end of the pressing portion 131 abuts against the end of the unlocking protrusion 111, the locking jaw 132 is inserted into the guide groove 103 is maintained, so the locking jaw 132 will be described later. Spaced from the surface of the rod 20 can be maintained in a state where the interference is removed.

The locking jaw 132 integrally formed between the pressing portions 131 is formed to have an inclination toward the rear body 10b at a lower portion thereof.

The pressing portion 131 is formed to have a shape in which the upper inclined portion 131a and the lower inclined portion 131b protruding toward the rear body 10b, and is seated on a rear surface of the slide fixing piece 13. The groove 133 is configured to be formed.

The rod 20 is the lower end of the frame 40 is welded to the upper portion, the pushing piece 21 having a disk shape is welded to the lower portion of the rod 20 is exposed to the upper portion of the adjusting device 10 As the upper portion of the bar 11 is pressed by the lower end of the frame 40, the lower portion of the bar 11 moves downward and the slide fixing piece 13, which will be described later, is spaced apart from the rod 20 so that the interference is removed. The inside of the insertion groove 101 formed in the unlocking portion 10 can be easily moved upward. At this time, the pushing piece 21 is formed by a plurality of spaced apart at regular intervals, to prevent the play in the process of moving the rod 20 up and down along the inside of the guide tube 50 and at the same time at the top The play may be prevented in the moved state to prevent the rod 20 from being broken.

When the pushing piece 21 of the rod 20 abuts inside the guide tube 50, the seat plate 80 constituting the stool C and the load of the upper plate 73 constituting the desk D and The rod 20 may be prevented from flowing inside the guide tube 50 by the weight of the user sitting on the seat plate 80.

On the other hand, the pushing piece 21, the unlocking bar 11 exposed to the lower portion of the adjustment opening 10 is pushed upwards as the unlocking bar 11 is moved to the upper slide fixing piece 13 to be described later The rod which is in close contact with the surface of the rod 20, that is, the interference is provided and the locking jaw 221 formed on the rod 20 is caught by the locking jaw 132 formed on the slide fixing piece 13 and moved upward. It is comprised so that 20 may be prevented from being moved back below. At this time, the locking jaw 132 can be easily crossed by the inclined portion 222 formed at the lower portion of the locking jaw 221.

Abutment 105a and 105b are formed at the outer periphery of the front body 10a and the rear body 10b, respectively, so that the lower portion of the pedestal 105a and 105b is the upper portion of the support leg 30. It is fitted to be fixed to the screw (S), and the upper part of the base jaw 105a, 105b is fitted to the lower guide pipe 50 is fixed to the screw (S) is configured to prevent separation. That is, the supporting leg 30 and the frame 40 fitted into the upper and lower portions of the unlocking part 10 are configured to be coupled with screws S, respectively.

The support leg 30 is coupled to the lower end by the welding joint so that the upper end of the reinforcing piece 31 on the upper side, the upper inner surface of the reinforcing piece 31 is opposed to the outer peripheral portion of the guide tube 50 Is coupled to the screw (S) is configured to increase the strength of the connection portion.

The guide cap 51 is interposed between the guide tube 50 and the frame 40 to prevent the rod 20, which is moved inside the guide tube 50, from being exposed to the outside, and at the same time, The outer circumferential edge of the frame 40 coupled to the upper portion and the inner circumferential edge of the guide tube 50 are configured to maintain a constant gap at all times.

The guide cap 51 has a locking portion 511 is formed in the upper inner peripheral portion is inserted so that the locking portion 511 is caught on the upper portion of the guide tube 50, the guide tube 50 and the guide cap ( 51) is configured to be coupled to the set screw (SS).

Using the height adjusting device (A) having such a configuration is the process of adjusting the height of the book, the stool is as follows.

First, as shown in FIG. 4A, in the state where the rod 20 is all lowered through the insertion groove 101 formed in the unlocking portion 10, the lower portion of the frame 40 is the second slide groove 102b. Pressing the upper end of the unlocking bar 11 drawn out to the upper end of the unlocking bar 11 is maintained in the state that all the drawn out to the lower portion of the unlocking portion 10.

At this time, the unlocking protrusion 111 formed in the unlocking bar 11 is moved downward along the first slide groove 102a, whereby the slide fixing piece 13 inserted into the guide groove 103 is The locking jaw 132 is always pressed in close contact with the rod 20 by the elastic force of the spring 12 (the height of the height of the book and the stool is the lowest).

In this state, as the user lifts the upper plate 73 of the desk D or the seat plate 80 of the stool C, as shown in FIG. 4B, the rod 20 coupled to the frame 40 is The slide fixing piece 13 is guided by the elastic force of the spring 12 when the locking jaw 221 of the locking groove 22 passes over the locking jaw 132 of the slide fixing piece 13. By being pulled out of the groove 103 and inserted into the locking jaw 221 of the locking groove 22, the drawn state can be maintained even when the upper plate 73 or the seat plate 80 is laid down.

Next, while the upper plate 73 or the seat plate 80 is further raised, the locking jaw 132 of the slide fixing piece 13 is moved while the inclined portion 222 formed at the lower portion of the locking groove 22 moves upward. As the spring 12 is compressed as the spring 12 is pressed in the opposite direction, the slide fixing piece 13 is inserted into the guide groove 103 so that the rod 20 can be easily moved upward without mutual interference. .

Next, a lower end of the unlocking bar 11 in which the pushing piece 21 coupled to the lower part of the rod 20 is drawn out to the lower part of the unlocking part 10 is moved to the upper part of the rod 20, and is shown in FIG. 4D. As described above, the upper end of the unlocking bar 11 is drawn out to the upper portion of the second slide groove 102b by pressing. At this time, the unlocking protrusion 111 formed on the unlocking bar 11 is the upper pressing portion 131a and the lower pressing portion, which is the pressing portion 131 formed on the slide fixing piece 13, as shown in FIGS. 4D and 4E. The locking jaw 132 of the slide fixing piece 13 is loaded when the slide fixing piece 13 is inserted into the guide groove 103 while compressing the spring 12 by being positioned where the 131b meets. Since the state (interference released state) is maintained from the outer periphery which is the surface of the (20), the rod 20 can be easily moved downward through the insertion groove (101).

The unlocking bar 11 moved upward and downward along the second slide groove 102b may be maintained by a magnetic force of the magnetic 14 coupled to the second slide groove 102b. .

On the other hand, the height of the height of the book, the stool is adjusted so that the locking jaw 132 of the slide fixing piece 13 is inserted into the locking groove 22 of the rod 20, and as shown in Figure 4c, the fixed knob By rotating the 15, the male screw 151 presses the rear surface of the slide fixing piece 13, thereby maintaining the fixed state in which the locking jaw 132 is inserted into the locking groove 22.

1 is a perspective view of a desk having a height adjustment according to the present invention.

Figure 2 is an exploded perspective view of the height adjusting device according to the present invention.

Figure 3 is a rear exploded perspective view of the unlocking portion constituting the height adjustment device according to the present invention.

Figures 4a to 4e is a cross-sectional view showing the operating state of the height adjuster according to the present invention.

5 is a perspective view of a stool having a height adjusting device according to the present invention.

Figure 6 is a perspective view showing another embodiment of a stool having a height adjusting device according to the present invention.

<Brief description of symbols for the main parts of the drawings>

10: unlocking part 10a: front body

10b: rear body 11: unlocking bar

12: Spring 13: slide fixing piece

20: Rod 21: Pushing

22: locking groove 30: support leg

40: frame 101: insertion groove

101a: first insertion groove 101b: second insertion groove

102: slide groove 102a: first slide groove

102b: the second slide groove 111: unlocking projection

103: Guide groove

Claims (6)

The height adjustment port (A) for adjusting the height of the book, the support base for the bench installed between the support leg 30 and the frame 40 is of the unlocking part 10 and the frame 40 coupled to the support leg 30. It is composed of a rod 20 coupled to the lower portion, the unlocking portion 10 is the front body 10a and the rear body 10b is welded, the front body 10a is the first insertion groove First slide grooves 102a are formed at both sides, and the rear body 10b has second slide grooves 102b formed at both sides of the second insertion groove 101b. The rod 20 is inserted into the insertion groove 101 in which the groove 101a and the second insertion groove 101b are opposed to each other, and the first slide groove 102a and the second slide groove 102b are butted together. The unlocking bar 11 having the unlocking protrusion 111 is inserted into the slide groove 102, and the guide groove 103 is formed inside the front body 10a corresponding to the unlocking protrusion 111. remind The slide fixing piece 13 receiving the spring 12 elasticity is inserted into the guide groove 103, and the rod 20 is welded to the lower end of the frame 40 at an upper portion thereof, and a pushing piece 21 at the lower portion thereof. In the height adjustment opening (A) of the book, the support leg for welding is formed, a plurality of engaging grooves 22 are formed between the frame 40 and the pushing piece 21, The magnetic 14 is inserted into the upper and lower portions of the second slide groove 102b, respectively, and the unlocking protrusion 111 is formed to protrude in a mountain shape toward the front body 10a, and the pushing piece 21 is a height adjustment of the book, stool support legs, characterized in that formed in a plurality of spaced apart at a predetermined interval from the lower portion of the rod (20). The method of claim 1, The slide fixing piece 13 is formed in a rectangular shape, the pressing portion 131 is formed at both ends, the locking jaw 132 is integrally formed between the pressing portion 131, the pressing portion 131 Is formed to have a shape in which the upper inclined portion 131a and the lower inclined portion 131b protrude toward the rear body 10b, and the locking jaw 132 has an inclination that increases toward the rear body 10b. It is formed to have, the height adjustment of the book, stool support legs, characterized in that the spring seating groove 133 is formed on the rear surface of the slide fixing piece (13). delete The method of claim 1, The front body 10a has a female screw 104 formed to penetrate the guide groove 103, and the male screw 104 is coupled to the male screw 151 provided in the fixing knob 15 so as to penetrate the slide. Book, characterized in that the configuration is configured to be pressed into the engaging groove 22, the height adjustment of the support feet for the bench. The method of claim 1, The base jaw 105a and 105b are formed at the outer periphery of the front body 10a and the rear body 10b, respectively, so that the lower portion of the base jaw 105a and 105b is fitted to the upper portion of the support leg 30. It is fixed with a screw, the upper part of the base jaw (105a, 105b) is inserted into the lower guide pipe 50 is fixed with a screw, the guide cap 51 is interposed between the guide pipe 50 and the frame 40 Book, characterized in that the height adjustment of the legs for the bench. The method of claim 1, The support leg 30 is coupled to the lower end is welded joint so that the upper end of the reinforcing piece 31 on the upper side, the upper inner surface of the reinforcing piece 31 abuts the outer periphery of the guide tube 50 The screw (S) is coupled to the unlocking portion 10 fitted through the reinforcing piece 31 and the guide tube 50 in the upper portion of the support leg 30 in the state, the unlocking portion 10 The upper and lower portions of the support leg 30 and the frame 40 is fitted with a screw (S), respectively, characterized in that the book, the height adjustment of the support leg for legs.
KR1020090036442A 2009-04-27 2009-04-27 Support leg high and low device of desk and bench KR100913380B1 (en)

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Application Number Priority Date Filing Date Title
KR1020090036442A KR100913380B1 (en) 2009-04-27 2009-04-27 Support leg high and low device of desk and bench

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Application Number Priority Date Filing Date Title
KR1020090036442A KR100913380B1 (en) 2009-04-27 2009-04-27 Support leg high and low device of desk and bench

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102300588B1 (en) * 2020-04-21 2021-09-10 주식회사 일룸 desk capable of adjusting height
KR102557640B1 (en) * 2022-12-13 2023-07-19 박성우 Supporter for packing box

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020075215A (en) * 2002-01-25 2002-10-04 김하나 Apparatus for adjusting the height a teaching chair and desk
KR20060066336A (en) * 2004-12-13 2006-06-16 이정원 Desk and chair relative regulation device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020075215A (en) * 2002-01-25 2002-10-04 김하나 Apparatus for adjusting the height a teaching chair and desk
KR20060066336A (en) * 2004-12-13 2006-06-16 이정원 Desk and chair relative regulation device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102300588B1 (en) * 2020-04-21 2021-09-10 주식회사 일룸 desk capable of adjusting height
KR102557640B1 (en) * 2022-12-13 2023-07-19 박성우 Supporter for packing box

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