KR200355532Y1 - Fixed lever to control height of desk and chair - Google Patents

Abstract

The present invention relates to a height adjustment fixing lever on a bookcase, and more specifically, the height of a desk or chair used by students can be freely adjusted according to physical conditions, and an adjustment fixing pin penetrating the support rod and the movable rod is pulled out. It is an object of the present invention to provide a height adjustment fixing lever on a bookcase to which a snap ring is inserted so as not to go out, and in order to achieve the above object, an adjustment fixing pin penetrating the support rod and the movable rod is formed, and the control fixing pin portion is moved out of the support rod. Positioning the snap ring between the burring screw portion and the coupling hole so as not to be detached, so that the height of the bookshelf can be manually adjusted without falling out of the adjustment fixing pin outside, there is no fear of loss of the adjustment fixing pin, and also adjustment adjustment The pin is inserted inside the movable rod to firmly support the load. There is an effect.

Description

Fixed lever to control height of desk and chair}

The present invention relates to a height adjustment fixing lever on a bookcase, and more particularly, to form an adjustment fixing pin penetrating a support rod and a moving rod so that students can freely adjust the height of a desk or chair according to physical conditions. The control fixing pin portion relates to a height-adjusting fixing lever on the bookshelf configured to position the snap ring between the burring screw portion and the coupling hole so as not to be separated out of the support rod.

In general, student desks are supplied to schools in several grades depending on the average body shape of the students.

In the case of the lower grades, the use of the lower level of the desk is used, whereas the higher grades are used to provide the higher level of the higher than the highest level.

However, in reality, the conditions and speed of the physical growth of each individual is different, the situation is not provided the height of the desk for each characteristic.

Therefore, in the case of desks and chairs used in schools or academies, many companies have developed and used products having a structure for maintaining a correct and comfortable posture.

In addition, the desk and chair used as described above are connected to support the upper and lower legs integrally coupled to the upper and lower legs, the coupling member for fixing the leg, the coupling member is housed inside or attached to the outside It consists of a connecting member.

In such a situation, the upper leg supporting the desk has a structure that is accommodated in the lower leg, and in this case, it is natural to use a pipe and a round bar smaller than the diameter of the lower leg.

In addition, the height of the desk is automatically adjusted when the connection member and the housing for height adjustment are fixed or connected to the lower leg portion.

However, the conventional height adjusting device used as described above has a problem in that the cost of manufacturing increases due to the complicated structure or additional parts to be assembled.

In addition, the penetrating support rod and the movable rod as a means for integrally fixing the support rod and the movable rod, and then using a separate fastening member to combine them integrally, but this is in the process of the students easily used the bolt of the bolt Due to repeated problems, there is a problem that a lot of time and economic difficulties occur in the period of use and maintenance.

The present invention is designed to solve the conventional problems as described above, as well as more secure and simple to adjust the height of the desk and chair, as well as the snap ring is inserted so that the adjustment fixing pin penetrating the support rod and the movable rod does not escape to the outside The purpose is to provide a height-adjusting fixed lever on the bookcase.

In order to achieve the above object to form a control fixing pin penetrating the support rod and the moving rod, and the control fixing pin is positioned outside the adjustment ring pin portion between the burring screw portion and the coupling hole so as not to be released to the outside of the support rod It relates to a height adjustment fixing lever on the bookshelf that is configured to manually adjust the height of the bookshelf without falling off.

1 is a perspective view of a state in which the main portion of the present invention is assembled

Figure 2 (a) (b) is a perspective view of the main portion of the present invention assembled

Figure 3 (a) (b) (c) is a cross-sectional view of a state in which the main portion of the present invention assembled and operated

4 is a perspective view showing a state of use of the subject innovation

5 is a front view showing a state of use of the subject innovation

Explanation of symbols on the main parts of the drawings

10. Support rod 11. Moving rod

12. Adjusting pin 13. Snap ring

14. Burring screw part 15. Moving screw part

16. Handle 17. Joiner

18. Locking member 19. Fixed case

20. Recessed groove 21. Fastener

22. Nut

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a perspective view of a state in which the main portion of the present invention is assembled, Figure 2 (a) (b) is a perspective view of the state of the main assembly of the present invention, Figure 3 (a) (b) (c) is 4 is a perspective view showing a state of use of the subject innovation, and FIG. 5 is a front view showing a state of use of the subject innovation.

First, the present invention as shown in Figure 1 is a moving screw portion 15 formed integrally with the locking member 18 is composed of one adjustment fixing pin (12).

In addition, the locking member 18 is formed to protrude from the end of the moving screw 15, the other side is to form a fastener 21 in a separate handle 16 that the user can operate.

On the other hand, the adjustment fixing pin 12 having the moving screw portion 15 of the form as described above was configured to be inserted into the burring screw portion 14 to the nut (net) 22 formed on the outer side of the support rod (10).

In such a situation, the method of forming the burring screw portion 14 is enabled by burring using a press punch, and it is also preferable to use the nut 22.

In addition, as described above, the burring screw part 14 formed by the press work is formed in the screw part 15 through a separate screw work, and the burring screw part 14 is attached to the fixed case 19 as shown in FIG. 4. It is configured to be accommodated separately in the formed recessed groove 20, and also configured to be fixed by arc welding when using the nut 22 in place of the burring screw portion (14).

In addition, as shown in FIG. 2, one side of the moving part 11 inserted into the supporting rod 10 has a coupling hole 17 formed at a predetermined interval.

That is, the end of the control fixing pin 12 introduced through the burring screw portion 14 formed in the support rod 10 is inserted into the coupling hole 17 formed in the movable rod 11.

As a result, as shown in (a) of FIG. 3, the locking member 18 of the adjustment fixing pin 12 penetrating the inside of the burring screw portion 14 to the nut 22 formed integrally with the supporting rod 10 is a movable rod ( It is configured to be introduced into the coupling hole 17 formed in 11).

In the above situation, the locking member 18 moves to the inner side of the movable rod 11 as shown in (b) of FIG. 3 so that it can safely support the movable rod 11.

At this time, the moving screw portion 15 formed on the adjustment fixing pin 12 is rotated to the left and right in the state coupled with the burring screw portion 14 to the nut 22 formed integrally with the support rod 10.

In addition, as shown in (a) of FIG. 3, one side of the moving screw part 15 which is integrally coupled with the burring screw part 14 to the nut 22 in a situation in which the moving bar 11 is operated up and down inside the support bar 10. The locking member 18 formed at the end of the control pin 12 is moved outward in the process of being caught by the snap ring 13 located between the outside of the moving rod 11 which is close to the inner side of the coupling hole 17. It will not escape.

That is, as shown in (a) (b) of FIG. 3, the catching member 18 of the adjustment fixing pin 12 is caught by a snap ring 13 formed at an outer side of the movable rod 11 inserted into the support rod 10. In the situation, the adjustment fixing pin 12 is to be fixed in the support bar (10).

Meanwhile, as shown in FIG. 4, the burring screw portion 14 to the nut 22 protruding from one side of the supporting rod 10 may have a structure inserted into the recessed groove 20 formed in the fixing case 19.

Referring to the operation and effects of the present invention made in the above configuration in detail as follows.

First, as shown in Figure 4, the upper side of the support rod 10 is integrally coupled with the moving rod 11, a separate fixing case having a recessed groove 20 to accommodate the burring screw portion 14 to the nut 22 portion ( 19).

In addition, in inserting the adjustment fixing pin 12 into the inner side of the coupling hole 17 formed in the burring screw portion 14 to the nut 22, the operator 16 is formed integrally with the control fixing pin 12 The fastener 21 is coupled to the electric mechanism to be moved automatically.

Meanwhile, as shown in FIG. 1, the snap ring 13 is inserted through the locking member 18 protruding from the end of the body having the moving screw 15.

The locking member 18 is inserted into the coupling hole 17 formed in the burring screw portion 14 to the nut 22 formed on one side of the outer circumference of the support rod 10 as shown in FIG.

At this time, the adjustment fixing pin 12 is to insert the snap ring 13 to the control fixing pin 12 in a situation that passes through the support rod 10 as shown in (a) of Figure 3,

Then, the engaging hole 17 formed in the movable rod 11 introduced into the support rod 10 is inserted into the engaging member 18 formed at the end of the control fixing pin 12 as shown in (b) of FIG.

In the above situation, the adjustment screw pin (12) formed on one side of the adjustment fixing pin 12 and the burring screw portion 14 to the nut 22 formed on the support rod 10 are interlocked with each other, so that the adjustment fixing pin 12 ) Securely supporting the part, and to move forward and backward to the left and right.

On the other hand, in order to adjust the height of the movable rod 11 inserted into the support rod 10, first, by rotating the handle 16 formed in the body as shown in Figure 3 (a) of the burring screw portion 14 to the nut 22 And through the process of releasing the engagement of the screw portion 15, the control fixing pin 12 is naturally out of the coupling hole 17.

At this time, the locking member 18 formed at the end of the control fixing pin 12 is caught by the snap ring 13, the movable rod 11 can freely move in the vertical direction in the support rod 10.

In addition, in the case of the locking member 18 formed at the end of the control fixing pin 12, the control fixing pin 12 is no longer escaped to the outside at the step of catching the snap ring 13 may be lost due to carelessness of the user There will be no.

In addition, a predetermined pressure is generated through the process of being in close contact with the inside of the moving rod 11 while the adjustment fixing pin 12 is inserted into the coupling hole 17 of the movable rod 11 whose height is adjusted. Together with the support force is to be able to safely support the load generated in the movable rod (11).

As described above, the present invention can easily support the movable rods and easily adjust the height of the bookcase without a separate guide device and the connecting ring.

The present invention described above is possible to those skilled in the art to which the present invention belongs to various modifications and changes can be made within the scope without departing from the technical spirit of the present invention described above and the accompanying drawings It is not limited to.

The present invention as described above is made of a simpler device as compared to the height adjustment device of the bookshelf used in the prior art has a feature that can easily adjust the height of the bookshelf with a simple operation with a feature of easy manufacturing.

And, the adjustment fixing pin portion for adjusting the height of the bookcase is made of a structure that does not escape from the inside of the support rod there is no fear of loss, and the adjustment fixing pin is inserted into the moving rod there is an effect that can firmly support the load.

Claims (3)

In the height adjustment device on a normal book having a fixed fixing pin penetrating the support rod and the movable rod, The adjustment fixing pin is inserted into the burring screw portion or nut formed on the outer periphery of the support rod, the end of the control fixing pin is formed by a locking member that is caught by the snap ring and the other side is composed of a moving screw portion engaging the burring screw portion to the nut. The height adjustment fixing lever on the bookcase, characterized in that configured to position the snap ring inserted into the adjustment fixing pin between the inner support rod close to the coupling hole formed on the outside of the moving rod so that the adjustment fixing pin is not separated out of the support rod. The method of claim 1, The adjustment fixing pin portion of the height adjustment fixing lever on the bookcase, characterized in that configured to be inserted into the recess groove of the fixed case coupled to the support rod The method of claim 1, Height adjustment fixing lever on the bookcase, characterized in that configured to form a separate fastener on one side of the handle integrally formed with the control fixing pin