KR20070100243A - Height adjustable table - Google Patents

Abstract

The present invention discloses an adjustable height table, which is convenient for use by adjusting a height of a tabletop and a footrest according to a user's body. An improved table comprises a leg having a first leg part and a second leg part. The first leg part connects to a tabletop. The second leg part is slidingly provided in order to insert or come out toward the first leg part. An adjusting hole is provided at one of the first leg part and the second leg part. An adjusting groove is provided at one of the first leg part and the second leg part. A control knob comprises a nut providing at the adjusting hole, a hollow fixing key inserting slidingly into the adjusting hole. A compressed spring is inserted into the receiving groove. A bolting part is screwed at the nut through the fixing key.

Description

Height-adjustable table {ADJUSTABLE HEIGHT TABLE}

The present invention relates to a height-adjustable table, and more particularly, the height of the table top is easily adjusted regardless of the load placed on the table top, so that it can be adjusted and used according to the body of the seated user. In addition, the present invention relates to an improved table capable of adjusting a height so that the height of the footrest provided on the pedestal of the table is adjusted so that it can be conveniently used to fit the body of the seated person.

School or modern office or industrial environments provide work areas with various types of functional furniture. These furniture components include work surfaces and table tops used for a variety of purposes, from drafting to writing and word processing functions. Therefore, these surfaces must be able to support various facilities such as typewriters and computer terminals. At the same time, these surfaces must be able to be adjusted vertically so that various tasks and various users can easily and effortlessly facilitate them. The same applies to the footrest provided on the pedestal of the table, and the height of the footrest should be adjustable for convenient use by various users.

In particular, such a table is more serious in elementary school, middle school, high school and university. In other words, even in the case of classmates who are taught in a classroom, the physical condition between individuals is quite different. However, such a parish table is made of a standardized step by step in consideration of the average physical condition of a large number of students. For this reason, there were considerable inconveniences for students using the teaching aid table which did not fit the body size.

One type of the height-adjustable table described above has been proposed in U.S. Patent No. 5,289,782 published by John J. Rizzi et al. On March 1, 1994, "a height-adjustable table." This is shown in Figure 9 showing a table capable of height adjustment showing an example of the prior art. As shown therein, the conventional table 10 includes a table top surface 12; The first leg portion 14a connected to the upper surface of the table 12, and the second leg portion 14b, which is fitted to the first leg portion 14a and provided so that the first leg portion 14a can be lifted or lowered. A pair of telescoping legs 14 capable of contracting and extending; And a balancing means (16), which is disposed between and provided between the pair of legs; And a pair of pedestals 18 provided at the lower end of the second leg portion 14b of the leg 14. However, such a table is a device for adjusting the height of the upper surface of the table, so it is necessary to use a counterbalance mechanism equipped with a weight means consisting of racks, pinions, chains, etc. There was a problem such as nonconformity. In addition, the footrest 19 provided on the pedestal of the table is inconvenient for users of various body types because it is a structure that can not adjust the height.

Next, Korean Utility Model Registration No. 20-0355945, issued to Ribat Co., Ltd. on July 1, 2004, has proposed a "table height adjusting device." This is shown in Figure 10 showing a table height adjustment device showing another example of the prior art. As shown in the drawing, the conventional table height adjusting device 20 includes a table 22; A pair of moving supports 24 projecting downward on the bottom surface of the table 22, a main support 26 having a hollow inside thereof so that the moving supports 24 are slid and guided; And a pedestal 28 connected to the bottom of the main support 26 at a right angle. At this time, a plurality of fixing holes 24a are regularly formed along the longitudinal direction of one side of the moving support 24, and one side of the main support 26 penetrates corresponding to one of the plurality of fixing holes 24a. The ball 26a is formed, and the fixing knob 29 connected to the fixing band 29a on one side of the main support 26 has a configuration in which the ball 26a is coupled to the fixing hole 24a through the through hole 26a. However, the conventional technology of Ribat Co., Ltd. has a problem in the process of re-engagement because the fixing knob is removed from the fixing hole of the moving support and the through hole of the main support. In addition, there was no configuration of scaffolding that could support the user's feet.

Disclosure of the Invention

Accordingly, the present invention is to solve the above problems, an object of the present invention is to simply adjust the height of the upper surface of the table by a simple operation of the adjustment knob, and do not remove completely in the state that the adjustment knob is fitted to the second leg portion It is possible to adjust the height of the upper surface of the table without providing a table that can be adjusted in height to obtain operational convenience.

Another object of the present invention is to provide a height adjustable table that can be conveniently adjusted to the height according to the user's body by providing a height adjustable footrest installed on the base of the table.

In order to achieve the above objects, the present invention

Table top;

A first leg portion connected to the upper surface of the table, the first leg portion is fitted or the first leg portion is inserted into the second leg portion for contracting and extending in the longitudinal direction and to support the table top to maintain a horizontal A leg provided with one of the first leg portion and the second leg portion with an adjustment hole and the other with a plurality of adjustment grooves continuously; And

A nut provided in the adjustment hole, the hollow fixture is fitted into the adjustment hole in the position opposite to the nut and fixed to the first leg portion and the second leg portion and the receiving groove is formed in one inner wall, the accommodation of the fixture A compression spring inserted into a groove to push the fixture; And a movable control member made of an adjustment knob which is screwed to prevent the tip from being separated from the adjusting hole through the fixing hole from the adjusting hole, and is provided with a bolt part and a knob part for gripping and rotating with the user's hand. ,

When the adjustment knob is spaced maximum from the leg, the fastener can retract and extend the length of the leg freely while overcoming the elastic force of the compression spring, and the adjustment knob has approached the maximum toward the leg. When the fixture is to provide a height adjustable table characterized in that the movement is limited by the adjustment knob is fixed legs.

Preferably, the end of the bolt portion of the adjustment knob is fixed by a fixing pin so as not to fall out of the nut.

In order to achieve the above another object, the present invention

Table top;

A pair of intermediate supports connected to the upper surface of the table;

A pair of retractable and extendable legs including a first leg portion connected to each of the intermediate supports and a second leg portion to which the first leg portion is lifted or lowered;

A pair of supporting parts connected to the lower end of the leg;

A movable control member which is integrally coupled so as not to be separated from the adjustment hole formed in the second leg portion of the leg to control the lifting and lowering of the first leg portion; And

It is to provide a table that can be adjusted in height is provided that the height adjustable footrest between the supporting portion.

Preferably, in order to adjust the height of the footrest, a support frame is provided between the support portions, the free end of the support frame is bent obliquely toward the second leg portion of the leg, the freedom of the support frame Coupling the multi-stage locking mechanism is formed at the end of the plurality of locking grooves, and both ends of the scaffold is formed integrally formed with a connection hole formed in one of the locking grooves of the multi-stage locking holes.

The objects and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. In the accompanying drawings;

1 is a partially exploded perspective view of a height adjustable table according to a preferred embodiment of the present invention;

Figure 2 is a perspective view of the coupled state of the height adjustable table of Figure 1;

Figure 3 is a front sectional view of the height adjustable table of Figure 1;

4 is an enlarged view of a portion “A” of FIG. 3, with the first leg of the leg locked; FIG.

FIG. 5 is an enlarged view of a portion “A” of FIG. 3, with the first leg of the leg unlocked; FIG.

FIG. 6 is an enlarged view of portion “A” of FIG. 3, illustrating a stretchable and extendable state of the leg; FIG.

FIG. 7 is a side cross-sectional view of the table taken along the line B-B in FIG. 2, with the height of the table upper surface and the footrest raised;

FIG. 8 is a side cross-sectional view of the table taken along the line B-B in FIG. 2, with the height of the table upper surface and the footrest lowered; FIG.

9 is a perspective view of a height adjustable table showing an example of the prior art; And

10 is a perspective view of a table height adjustment device showing another example of the prior art.

Detailed description of the preferred embodiment

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the height adjustable table according to an embodiment of the present invention.

1 shows a table capable of height adjustment according to a preferred embodiment of the present invention. Figure 2 shows the combined state of the height adjustable table of FIG. 3 is a front sectional view of the height adjustable table of FIG. FIG. 4 is an enlarged view of portion “A” of FIG. 3 and shows a state in which the first leg portion of the leg is locked. FIG. 5 is an enlarged view of a portion “A” of FIG. 3, showing a state in which the first leg of the leg is unlocked. FIG. 6 is an enlarged view of a portion “A” of FIG. 3, illustrating a stretchable and extendable state of the leg.

1 to 6, the height adjustable table 100 of the present invention is a table top surface 110, a pair of intermediate support portion 120 that is connected in a vertical downward direction to the bottom of the table top surface 110 , A plurality of retractable and extendable legs 130 provided to be height-adjustable in a vertical downward direction at the bottom of the intermediate support part 120, and a plurality of pedestals 140 provided at the bottom of each leg 130. Include.

In more detail, it is preferable that the table top surface 110 has a shape having an approximately flat surface.

Each intermediate support 120 is provided to face vertically downward on both sides of the bottom of the table top surface (110). Since each intermediate support 120 is disposed to be spaced apart from each other, it is preferable to connect the middle to the upper connecting rod 122.

The leg 130 is fitted to the lower end of each intermediate support portion 120 so that the pair of the first leg portion 132 and the first leg portion 132 which are provided so as to be vertically lowered to be capable of lifting or lowering operation. And a pair of second legs 136. The first leg 132 preferably has a plurality of stop grooves 134 at predetermined intervals along the outer circumference. These stop grooves 134 are arranged at regular intervals with respect to each other, but can be irregularly arranged as necessary. The first leg portion 132 may be formed in one pair. These first leg portions 132 are disposed to be spaced apart from each other at predetermined intervals. The stop grooves 134 formed in these first leg portions 132 are positioned in opposite directions to each other.

The inside of the second leg 136 is provided with a hollow with an open top surface. The first leg 132 is fitted into the hollow of the second leg 136 to vertically move up or down. The second leg 136 is provided with at least one adjustment hole 136a corresponding to one of the stop grooves 134 of the first leg 132. The adjusting hole 136a is completely penetrated from one side of the outer peripheral surface of the second leg portion 136 to the other side. A lower connecting rod 138 is provided between each second leg 136. One side of the lower connecting rod 138 may be provided with a hole for installing the fixing pin 158 and the like and means for blocking the hole. In addition, the lower connecting rod 138 may be applied to other portions of the second leg 136.

4 to 6, the adjusting hole 136a of the second leg 136 is provided with a movable control member for controlling the lifting or lowering operation of the first leg 132. The movable control member is integrally provided with a nut 150 provided at a portion of the adjusting hole 136a in contact with both ends of the lower connecting rod 138; The hollow fixture is fitted into one of the stop grooves 134 of the first leg portion 132 is inserted into the control hole (136a) of the second leg portion 136, the receiving groove 152a is formed on one inner wall (152); A compression spring 154 inserted into the receiving groove 152a of the fixture 152 to provide an elastic force to push the fixture 152; And a bolt portion 156a through which the tip is screwed into the nut 150 from the adjusting hole 136a of the second leg portion 136 and screwed into the nut 150, and a handle portion for gripping and rotating with the user's hand. And an adjustment knob 156 provided with 156b. Here, the tip of the bolt portion 156a of the adjustment knob 156 is fixed with a fixing pin 158 to prevent the nut 150 from being pulled out. Here, the strength of the compression spring 154 is preferably adjusted to prevent the table top surface 110 from falling sharply due to its own weight.

Referring back to FIGS. 1 to 3, the pedestal 140 is horizontally disposed at the lower end of the second leg 136. That is, the pedestal 140 is preferably arranged at a right angle with respect to the second leg portion 136 standing vertically. Pedestal 140 is in contact with the surface of the ground or other workplaces serves to maintain the table 100 itself upright.

In addition, a footrest member capable of height adjustment in multiple stages may be further installed between each pedestal 140. A scaffold member is provided between each pedestal 140 so that the free end is bent obliquely toward the second leg 136 of the leg 130, the bent freedom of the support frame 160. It is coupled to the end and the bottom includes a multi-stage locking groove 162 is provided with a plurality of locking grooves (162a) in the form of a step, the multi-stage locking hole 162 is inserted into the height of the multi-stage foot 164 is adjustable. In particular, the footrest 164 extends integrally with the footrest 166 to which the user's foot is lifted, and the connection portion 168 having the locking holes 168a on both sides of the footrest 166. A plurality of grooves or the like may be formed on the upper surface of the footrest 166 to prevent slippage when the foot is in contact. After passing through the locking hole 168a formed in the connecting portion 168 of the footrest 164, the connecting portion 168 is caught and fixed to one of the locking grooves 162a of the multi-stage locking portion 162. do.

The operation of the height-adjustable table configured as mentioned above will be described in detail with reference to FIGS. 7 and 8 as follows.

FIG. 7 is a side cross-sectional view of the table taken along the line B-B of FIG. 2, showing a state where the height of the table upper surface and the footrest is increased. FIG. 8 is a side cross-sectional view of the table taken along the line B-B in FIG. 2, showing a state where the height of the table upper surface and the footrest is reduced.

Referring to FIG. 7, when the user of the table 100 has a large body shape, first, when the adjustment knob 156 is rotated clockwise or counterclockwise, the handle 156b of the adjustment knob 156 may be a compression spring ( While releasing the compressed state of 154, it is spaced apart at predetermined intervals from the fastener 152 pushed so as not to move. Then, the fastener 152 is reversed in the direction of the handle portion 156b by an external force, that is, a moving force of the first leg 132. At this time, the moving force of the first leg 132 is greater than the elastic force of the compression spring 154. Thus, the fastener 152 exits the stop groove 134 of the first leg 132. At this time, instead of the pushing force by the handle portion 156b of the adjustment knob 156 is removed, only the elastic force of the compression spring 154 alone is the fastener 152 of the stop groove 134 of the first leg portion 132. There is a pushing force towards the direction (see FIGS. 5 and 6). Then, the height of the table top surface 110 can be easily adjusted with only a small force of the user. In this state, the table top surface 110 is pulled high to match the height of the user's body shape.

Then, the adjustment knob 156 is rotated in the opposite direction. Then, the handle 156b of the adjustment knob 156 pushes the compression spring 154, and eventually fixes the fixture 152 in a state of being fitted into the fixing groove 134 of the first leg 132. . Accordingly, the first leg 132 is fixed without moving in the hollow of the second leg 136 (see FIG. 4).

In addition, as shown in FIG. 7, the footrest 164 is moved from the position of the locking groove 162a of the lowest position (dotted line) of the multistage locking opening 162 to the uppermost position (solid line). To this end, the user is made of a simple operation of removing the footrest 164 from the locking groove 162a at the lowermost position and fitting it to the uppermost position.

On the contrary, referring to FIG. 8, when the user's body is small, the table top surface is released after releasing the locking state of the first leg 132 by the rotation of the adjustment knob 156 as described above. Lower 110 to the required height. Subsequently, the upper surface 110 of the table 110 is fixed to the locked state of the first leg 132 by the rotation of the adjustment knob 156.

In addition, the footrest 164 may also be used by moving the footrest 164 from the uppermost position (dotted line) to the lowermost position (solid line) in accordance with the user's body shape.

As mentioned above, the height-adjustable table according to the preferred embodiment of the present invention forms a plurality of fixing grooves in the first leg portion connected to the table top surface, and the first leg portion in the hollow of the second leg portion By arranging to raise or lower and control the lifting or lowering of the first leg by the fixing member provided on the second leg, the height of the table upper surface is made high or low by simple rotation of the adjustment knob according to the user's body type. It has an adjustable effect. In particular, since the adjustment knob does not come off from the second leg, the operation is very simple.

In addition, by providing a support frame having a multi-stage locking portion in the base of the leg, and selectively inserting the footstool into a plurality of locking grooves formed in the multi-stage locking opening, the footrest is fitted to one of the locking grooves of the multistage locking opening according to the user's body shape. You can adjust the height up or down by simple operation.

In the above, the present invention has been described in detail with reference to the above-described embodiments, but the present invention is not limited thereto, and those skilled in the art may change or improve the technology within the scope of ordinary knowledge.

Claims (4)

Table top; A first leg portion connected to the upper surface of the table, the first leg portion is fitted or the first leg portion is inserted into the second leg portion for contracting and extending in the longitudinal direction and to support the table top to maintain a horizontal A leg provided with one of the first leg portion and the second leg portion with an adjustment hole and the other with a plurality of adjustment grooves continuously; And A nut provided in the adjustment hole, the hollow fixture is fitted into the adjustment hole in the position opposite to the nut and fixed to the first leg portion and the second leg portion and the receiving groove is formed in one inner wall, the accommodation of the fixture A compression spring inserted into a groove to push the fixture; And a movable control member made of an adjustment knob which is screwed to prevent the tip from being separated from the adjusting hole through the fixing hole from the adjusting hole, and is provided with a bolt part and a knob part for gripping and rotating with the user's hand. , When the adjustment knob is spaced maximum from the leg, the fastener can retract and extend the length of the leg freely while overcoming the elastic force of the compression spring, and the adjustment knob has approached the maximum toward the leg. When the fastener is limited in movement by the adjustment knob is a height adjustable table, characterized in that the leg is fixed. The height adjustable table according to claim 1, wherein a fixing pin is fixed to the distal end of the bolt portion of the adjustment knob so as not to fall out of the nut. Table top; A first leg portion connected to the upper surface of the table, the first leg portion is fitted or the first leg portion is inserted into the second leg portion for contracting and extending in the longitudinal direction and to support the table top to maintain a horizontal A leg provided with one of the first leg portion and the second leg portion with an adjustment hole and the other with a plurality of adjustment grooves continuously; A support portion connected to the second leg portion of the leg to support the second leg portion to stand vertically; Footrest height adjustable between the support portion; And A nut provided in the adjusting hole, a hollow fixture fitted to the adjusting hole in a position opposite to the nut and fixed to the first leg portion and the second leg portion, the receiving groove is formed on one inner wall, the accommodation of the fixture A compression spring inserted into a groove to push the fixture; And a movable control member made of a control knob which is screwed to prevent the tip from being separated from the adjusting hole through the fixing hole from the adjusting hole, and is provided with a bolt part and a knob part for gripping and rotating with the user's hand. , When the adjustment knob is spaced maximum from the leg, the fastener can retract and extend the length of the leg freely while overcoming the elastic force of the compression spring, and the adjustment knob has approached the maximum toward the leg. When the fastener is limited in movement by the adjustment knob is a height adjustable table, characterized in that the leg is fixed. According to claim 3, In order to adjust the height of the footrest, a support frame is provided between the support portion, the free end of the support frame is bent inclined toward the second leg of the leg, the support frame Combine the multi-stage fasteners are formed in the free end of the plurality of locking grooves, and both ends of the scaffold is adjustable height adjustable, characterized in that the connection portion is formed integrally formed with a fixing hole to be located in one of the locking grooves of the multi-stage locking holes table.

Images