KR200351767Y1 - Chair that height control is available - Google Patents

Abstract

The present invention relates to a height adjustable stool,

By further improving the utility model registration No. 276484, which is a pre-registered design, it is possible to arbitrarily adjust the height of the stool and to finely adjust the height according to the user's physical condition, but the overall configuration is very simple and the production cost is easy. Its purpose is to provide high-quality, high-adjustable stools that cost less and provide a refined look.

The purpose of the present invention as described above,

The four pillars supporting the ground as a whole are separated so that the upper pillars 11a, 11b, 11c, and 11d are inserted into the lower pillars 10a, 10b, 10c and 10d, respectively.

Lead screws are formed on the horizontal frame 500 connecting the upper pillars 11a and 11b on one side and the upper pillars 11c and 11d on the other side in opposite directions and are rotated by the lever 40. 41),

A pair of nuts 42 are coupled to the lead screw 41 to hinge-couple the upper portion 600a of the operation bar 600 bent in a trapezoid shape to the bottom of each nut 42.

The lower both ends 600b of the operation bar 600 are hinged to another horizontal frame 700 connecting the lower pillars 10a and 10b on one side and the lower pillars 10c and 10d on the other side, respectively. ,

When adjusting the height of the stool, when the lever 40 is turned, a pair of nuts 42 which are coupled to the lead screw 41 and gathered or opened to the inner center are erected or laid on the operation bar 600, so that the upper pillar 11a of one side ( It is achieved by a height-adjustable stool characterized in that the height of the stool is adjusted while simultaneously raising and lowering the upper pillars 11c and 11d on the other side.

Description

Chair that height control is available}

The present invention relates to a height-adjustable stool, and more particularly, by installing a height adjusting device configured to adjust the height of the legs on the stool, by using this to adjust the height of the stool arbitrarily according to the user's physical condition It is basic and the utility model registration No. 276484, which is my preliminary registration plan that allows fine adjustment of height, is further improved, and the configuration is simpler, and the height adjustment and fine adjustment of the stool are also possible. .

Generally, desks and stools are used in schools, such as the existing desks and stools have not only a uniform height is made of uniform height, there was no separate function to adjust the height.

As a result, students whose physical condition is very different from each other may use desks and stools that do not match their physical condition, causing the eyes to bend easily due to the bending of the waist or the out-of-focus distance of books and eyes placed on the desk. The mental and physical stress of the building caused a huge obstacle to the development of a healthy mind and body, and accordingly, there were many problems such as being unable to work efficiently.

Therefore, in recent years, many books and stools that have been installed with height adjusting devices to adjust the height of the legs have been conceived, but almost all of them are very inconvenient to adjust the height of the legs, and there are many problems in the rigidity of the height adjusting devices. There was a problem in reliability, such as not being able to use it with confidence because it did not go anytime soon after receiving a lot of errors, and the most important disadvantage was that a fixed height adjustment width was formed at every step during height adjustment, and thus, fine adjustment was impossible. In particular, the height of books and stools can not be finely adjusted to best suit the physical conditions of students who are using desks and stools for a long time, thus reducing the fatigue of the eyes as well as spine deformation of the user's back and waist. There was a huge problem that could not be.

Accordingly, in consideration of the above problems, there is a utility model registration No. 276484, which is a preliminary registered proposal, which is divided into four pillars supporting the entire ground as shown in FIG. 11b, 11c, and 11d are configured to be inserted into the lower posts 10a, 10b, 10c, and 10d, respectively.

The upper column 11a of one side is connected to the upper column 11b and the lower column 10a is connected to the lower column 10b, and the other upper column 11c opposite to each other is the upper column 11d. Guide frames 21, 22, 23, and 24 having guide holes 21a, 22a, 23a, and 24a formed at one side thereof so that the lower column 10c is connected to the lower column 10d. Configure each connection,

The guide frames 21 and 22 on the one side and the guide frames 23 and 24 on the other side are coupled to a pair of X-type auxiliary frames 30 in which a hinge 31 is coupled to the center thereof, and then each of the auxiliary frames 30 of the guide frames 21 and 22 on the other side. One end is coupled to the hinge 32 and the other end is configured to slide in combination with the guide holes 21a, 22a, 23a, 24a of the guide frame 21, 22, 23, 24,

Any one end of the auxiliary frame 30 coupled to the guide slots 21a, 22a, 23a, and 24a of the guide frames 21, 22, 23, and 24 is one side of the guide frame 21. And a pair of nuts 42 and connecting bars 43 which are connected to the other guide frame 23 and rotated by the lever 40 and are connected to the lead screws 41 having threads formed in opposite directions on both sides. By installing

When adjusting the height of the stool, when the lever 40 is turned, a pair of nuts 42 coupled to the lead screws 41 formed with threads in opposite directions on both sides are assembled or pulled toward the inner center to pull the connecting bar 43. Or the X-type auxiliary frame 30 is folded, and the upper column 11a, 11b on one side and the upper column 11c, 11d on the other side are moved from the lower column 10a, 10b, 10c, 10d. As you go up and down at the same time, the height of the stool is adjusted,

It is basic to arbitrarily adjust the height of the stool according to the user's physical condition by using this, and it is possible for the user to use it conveniently by enabling fine adjustment of the height.

However, in the case of the pre-registered draft, the overall composition is very solid and strong, and the characteristics of the arbitrary adjustment of the height of the bench and the fine adjustment of the height are possible, while the composition is very complicated, the production is difficult, and the production cost is high, Aesthetically, it was difficult to feel sophisticated.

The present invention was devised in view of the above problems,

By further improving the utility model registration No. 276484, which is a pre-registered design, it is possible to arbitrarily adjust the height and fine adjustment of the height according to the user's physical condition, but the overall configuration is very simple and the production cost is easy. Its purpose is to provide high-quality, high-adjustable stools that cost less and provide a refined look.

1 is a configuration state of the pre-registration proposal of the person.

Figure 2 is a perspective view showing an embodiment as the present invention.

Figure 3 is a front view showing a height adjustment state as the present invention.

Figure 4 is a perspective view of the configuration state to enable the angle adjustment of the backrest as the present invention.

Figure 5 is a side view of a partially cut state showing the angle adjustment state of the backrest as the present invention.

Figure 6 is a side view of the main portion is formed so that the spring constituting the back cushion as the present design is not visible from the outside.

♣ Explanation of symbols for the main parts of the drawing ♣

40: Lever 41: Lead screw

42: Nut 100: Backrest

200: seat 500: 700: horizontal frame

600: operation bar 600a: upper part

600b: Both ends

The present invention for achieving the above object is described in detail in the accompanying drawings.

The present invention, as shown in Figure 2 to Figure 3,

The four pillars supporting the ground as a whole are separated so that the upper columns 11a, 11b, 11c, and 11d are inserted into the lower columns 10a, 10b, 10c, and 10d, respectively.

A lead screw 41 is installed on the horizontal frame 500 connecting the upper pillars 11a and 11b of the one side and the upper pillars 11c and 11d of the other side.

The lead screw 41 is threaded in the opposite direction to each other, is rotated by the lever 40.

In addition, a pair of nuts 42 are coupled to the lead screw 41, and an upper portion 600a of the operation bar 600 bent in a trapezoid shape is hinged to the bottom of each nut 42. The lower both ends 600b of the bar 600 are hinged to another horizontal frame 700 connecting the lower pillars 10a and 10b on one side and the lower pillars 10c and 10d on the other side, respectively.

Therefore, the present invention, when adjusting the height of the stool, when turning the lever 40, a pair of nuts 42 coupled to the lead screw 41 is gathered or unfolded to the inner center and at the same time operating bar by the operation of the nut 42 The upper portion 600a of the 600 is erected or laid down on both sides of the lower end 600b, while simultaneously raising and lowering the upper pillars 11a and 11b on one side and the upper pillars 11c and 11d on the other side. The height is adjusted.

The unexplained symbol 100 is a backrest, and another unexplained symbol 200 is a seat plate.

On the other hand, the subject innovation may be made to lean back flexibly by configuring a separate cushioning means of the backrest 100 of the stool,

One embodiment of the present invention will be described in detail with reference to FIGS. 4 to 5.

The backrest frame 300 is provided with the backrest 100 separately installed to connect the lower side of the backrest frame 300 to the upper plate 11b and 11d, which is installed and lifted to the left and right. Hinges 310 coupled to the horizontal frame 210,

The lower end of the backrest frame 300 is installed to receive the elastic force of the spring 400 to the fixed iron piece 220 fixed to the horizontal frame 210 is made so that the stool is retracted elastically.

Here, the spring 400 located between the lower end of the backrest frame 300 and the fixed iron piece 220 fixed to the horizontal frame 210,

Is inserted into the outer edge of the coupling rod 320 is rotatably coupled to the bottom end of the back frame 300,

The front end of the coupling rod 320 is inserted into the spring 400 is inserted into the hole 221 formed on the lower side of the fixing iron piece 220 to be fixed by fasteners 330, such as nuts or fixing pin fixing washers, so as not to fall out. Become

When the back frame 300 is moved forward and backward about the hinge 310, the front end of the coupling rod 320 emerges toward the front of the fixed iron piece 220 so that the elastic force of the spring 400 is transmitted to the back frame 300. It is composed.

On the other hand, the present invention is to wrap the spring 400 constituting the backrest 100 cushioning means of the stool as shown in Figure 6 with a cover body 700 which is fixed to the fixed iron piece 200 by welding or the like from the outside By preventing the spring 400 from being visible, clothes or fingers may not be caught in the spring 400 to prevent safety accidents, as well as to prevent damage to the spring 400 and to enhance the appearance.

The height adjusting device of the stool may be applied to the desk so that the desk is adjusted in height.

The present invention is not limited by the above-described embodiments of the present invention as long as it is a simple design change or replacement of the present invention will all fall within the technical scope of the present invention.

Referring to the state of use of the subject innovation configured as described above are as follows.

First, when adjusting the height of the stool, by turning the lever 40, a pair of nuts 42 coupled to the lead screw 41 formed with threads in opposite directions on both sides are gathered or opened to the inner center.

At the same time, the upper portion 600a of the operating bar 600 hinged to the lower side of the nut 42 is erected or laid down on both sides 600b of the operating bar 600 hinged to the horizontal frame 700. Building

By simultaneously raising and lowering the upper pillars 11a and 11b on one side and the upper pillars 11c and 11d on the other side, the height of the stool is easily adjusted arbitrarily, and fine adjustment is also possible.

At this time, when the backrest is configured to lean back as shown in Fig. 4, the neck, back, and back become cranky or drowsiness when the upper body is leaned back on the backrest 100,

As shown in FIG. 5, the backrest frame 300 having the backrest 100 installed therein is pivoted backward with respect to the hinge 310, and the backrest frame 300 is elastically flipped back by the elastic force of the spring 400.

That is, when the back frame 300 is moved back and forth about the hinge 310, the front end of the coupling rod 320 emerges toward the front of the fixed iron piece 220, and the spring 400 is compressed or restored to support the elastic force. Will be delivered to the frame (300).

Therefore, the user may be able to relieve fatigue from time to time while leaning back on the back 100 when the neck, back and waist becomes cranky or drowsy.

Since the folding means of the backrest 100 is provided as an embodiment, it is too obvious that a separate shock absorber may be configured to be flipped back elastically.

The present invention further improves the utility model registration No. 276484, which is a pre-registered design as described above, and allows the user to arbitrarily adjust the height of the stool and finely adjust the height according to the user's physical condition. Can be.

Therefore, production is easy and production costs are low.

And because of its simple configuration, it is also beautiful in appearance.

In addition, by installing a specially designed back cushion so that only the backrest frame of the stool can be retracted elastically,

When the user feels tiredness or drowsiness while sitting on a stool, he / she may be able to release his / her physical and mental fatigue from time to time.

At this time, the spring constituting the backrest cushioning means of the stool is wrapped in a cover body fixed to the fixed iron piece by welding or the like so that the spring is not visible from the outside, thereby preventing the safety accident by preventing clothes or fingers from being caught in the spring. Of course, the structure is very simple and robust, which prevents the damage of the spring and makes the appearance beautiful, and it is very easy to operate and simple, and the user can use it more conveniently because of its long life. It is devised.

Claims (3)

The four pillars supporting the ground as a whole are separated so that the upper pillars 11a, 11b, 11c, and 11d are inserted into the lower pillars 10a, 10b, 10c and 10d, respectively. Lead screws are formed on the horizontal frame 500 connecting the upper pillars 11a and 11b on one side and the upper pillars 11c and 11d on the other side in opposite directions and are rotated by the lever 40. 41), A pair of nuts 42 are coupled to the lead screw 41 to hinge-couple the upper portion 600a of the operation bar 600 bent in a trapezoid shape to the bottom of each nut 42. The lower both ends 600b of the operation bar 600 are hinged to another horizontal frame 700 connecting the lower pillars 10a and 10b on one side and the lower pillars 10c and 10d on the other side, respectively. , When adjusting the height of the stool, turning the lever 40 is coupled to the lead screw 41, the operating bar 600 is erected or laid down by a pair of nuts 42 which are assembled or unfolded to the inner center, and the upper column 11a on one side. A height adjustable stool characterized in that the height of the stool is adjusted by simultaneously elevating and lowering the 11b and the other side columns 11c and 11d. The method of claim 1, The backrest 100 of the stool, The backrest frame 300 is provided with a backrest frame 300 is installed separately, the lower side of the backrest frame 300 is coupled to the hinge 310 to the horizontal frame 210 to connect the upper pillars (11b) (11d), The bottom end of the backrest frame 300 is installed to receive the elastic force of the spring 400 to the fixed iron piece 220 fixed to the horizontal frame 210, The spring 400 is installed to be positioned between the lower end of the backrest frame 300 and the fixed iron piece 220 fixed to the horizontal frame 210, Is inserted into the outer edge of the coupling rod 320 is rotatably coupled to the bottom end of the back frame 300, The front end of the coupling rod 320 is inserted into the spring 400 is inserted into the hole 221 formed on the lower side of the fixing iron piece 220 to be fixed by fasteners 330, such as nuts or fixing pin fixing washers, so as not to fall out. Become When the back frame 300 is moved forward and backward about the hinge 310, the front end of the coupling rod 320 emerges toward the front of the fixed iron piece 220 so that the elastic force of the spring 400 is transmitted to the back frame 300. Configured, Height-adjustable stool, characterized in that the stool is made to retract elastically. The method of claim 2, The spring 400 constituting the backrest 100 of the stool is wrapped in a cover body 700 that is fixed to the fixed iron piece 200 by welding or the like, so that the spring 400 is not visible from the outside. The height adjustable stool characterized in that it is made to prevent clothing or fingers caught in the spring 400 to prevent accidents in advance and to prevent damage to the spring 400.