KR100563441B1 - Height adjustment for desk and chair - Google Patents

Abstract

The present invention relates to a height adjustment device for a bench for adjusting the height of a desk or a stool according to the user's request.

The configuration of the present invention, the upper plate of the desk and the bench is coupled, the upper plate support member for supporting it; A pair of elevating members coupled vertically to the upper plate supporting member, the elevating member being provided to enable elevating therein; Coupling portions formed with screw holes at both ends are respectively provided to be horizontally coupled between the pair of lifting members, and a rotation shaft is rotatably provided therein, and both ends of the rotation shaft operate the adjusting means of the lifting member. A rotation member provided with rotation push means for allowing the lifting member to be lifted up and down respectively; A pair of vertical members having a hollow so that the elevating member is inserted therein and having a stopper member at one side thereof; A pair of support members integrally coupled to a lower portion of the pair of vertical members and having a hollow therein; A horizontal member coupled horizontally between the pair of vertical members; Provides a height adjustment device for a bookcase, characterized in that consisting of.

Desk, stool, book stool, height adjustment

Description

Height adjustment for desk and chair {

1 is a cross-sectional view of the main part showing a conventional height adjustment device for a bookcase;

Figure 2 is a combined perspective view showing the height adjusting device for the desk of the first embodiment according to the present invention,

Figure 3 is an exploded perspective view showing the height adjusting device for the desk of the first embodiment according to the present invention,

Figure 4 is an exploded perspective view showing a rotational push means of one embodiment constituted in the height adjustment device for the desk chair of the first, second, third, fourth embodiment according to the present invention,

5 is a combined configuration showing a configuration in which the height adjustment device for the bookshelf of the first embodiment according to the present invention, the adjusting means, the elevating member, the stopper member, the vertical member and the horizontal member are coupled,

Figure 6 is a combined perspective view showing the adjustment means constituted in the height adjustment device for the desk bench according to the first embodiment of the present invention,

Figure 7 is a whole side cross-sectional view showing a height adjustment device for a desk chair of the first embodiment according to the present invention,

8a and 8b is a coupling configuration showing a configuration in which the rotation lever is coupled in the height adjustment device for a desk according to the first embodiment of the present invention,

Figure 9a and 9b is a side cross-sectional view showing a configuration in which the height adjustment device for lifting on a stool stand of the first embodiment according to the present invention is fixed to the stopper member spaced apart by the control means lifted by the rotation push means,

10 is a coupling configuration showing a configuration in which the adjustment means, the elevating member, the stopper member, the vertical member and the horizontal member are combined in the height adjustment device for the desk according to the second embodiment of the present invention;

11 is a combined perspective view showing the adjustment means constituted in the height adjustment device for the bookshelf of the second embodiment according to the present invention,

12 is an overall side cross-sectional view showing a height adjustment device for a bookcase of a second embodiment according to the present invention;

FIG. 13 is an exploded perspective view showing the adjusting part and the stopper member of the adjusting means in the height adjusting device for the desk according to the second embodiment according to the present invention;

Figure 14a and 14b is a side cross-sectional view showing a configuration in which the height adjustment device for lifting on a stool stand of the second embodiment according to the present invention is fixed to the stopper member spaced apart by the control means lifted by the rotation push means,

15 is a coupling configuration showing a configuration in which the adjustment means, the elevating member, the stopper member, the vertical member and the horizontal member are combined in the height adjustment device for the desk according to the third embodiment of the present invention.

16 is a combined perspective view showing the adjustment means constituted in the height adjustment device for the bookshelf of the third embodiment according to the present invention,

Figure 17 is a whole side cross-sectional view showing a height adjustment device for a bookshelf of a third embodiment according to the present invention,

18 is an exploded perspective view showing the adjusting portion and the stopper member of the adjusting means in the height adjusting device for the desk according to the third embodiment of the present invention;

Figure 19a and 19b is a side cross-sectional view showing a configuration in which the height adjustment device for lifting on a stool stand of the third embodiment according to the present invention is fixed to the stopper member spaced apart by the control means lifted by the rotation push means,

20 is a coupling configuration showing a configuration in which the adjustment means, the elevating member, the stopper member, the vertical member and the horizontal member in the height adjustment device for the desk according to the fourth embodiment of the present invention;

Figure 21 is a perspective view showing the adjustment means constituted in the height adjustment device for the bookshelf of the fourth embodiment according to the present invention,

Figure 22 is a whole side cross-sectional view showing a height adjustment device for a desk chair of the fourth embodiment according to the present invention,

23a and 23b is a side cross-sectional view showing a configuration in which the height adjustment device for lifting on a stool stand according to the fourth embodiment of the present invention is fixed to the stopper member and spaced apart by the adjustment means lifted by the rotational push means;

24 is an exploded perspective view showing the rotational push means of another embodiment constituted in the height adjustment device for the desk chair of the first, second, third, fourth embodiments according to the present invention;

25 is a side cross-sectional view showing a configuration in which the pivoting push means of another embodiment is coupled to the push member;

Figures 26a and 26b is a coupling configuration showing a configuration in which the rotating push means of the other embodiment is coupled to the height adjustment device for the desk of the first, second, third, and fourth embodiments.

<Description of Symbols for Major Parts of Drawings>

1: top plate

100: top plate support member

110: vertical frame

112a: Supporting screw 112b: Insertion hole

112c: fastening hole 114a: top plate coupling screw

114b: Insertion Groove 114c: Tightening Groove

120: horizontal frame

200: lifting member

210, 210-2: Spacer insert groove 210-1: Stopper hole insert groove

212: long hole 212-1: shaft hole

214: pinhole 215: spring support piece

216: Fastening piece 216a: Top plate fastening hole

218: lever fitting hole 220: rotating push means fitting ball

220a: fastener

250 control means

260, 260-1: Lifting support

262: support rod

264: blood push member

264a: pressed piece 264b: female gear

264c: close contact surface

266: elastic spring

266a: upper fitting 268: support contact surface

269a: Roller 269b: Roller Insertion Groove

269c: pinhole

270, 270-1, 270-2: control unit

272, 272-1: Adjusting contact surface 272-2: Roller contact surface

274, 274-1: close contact 274a, 274a-1: male thread

274b: stopper groove 274c: stopper

276, 276-1, 276-2: Elastic Spring

278: pin ball 278a, 278a-1: pin

278-1: Shaft

280: Spring High Government

280a: lower fitting 280b: pin ball

280c: pin

300: rotating member

302: screw hole 304: coupling part

310: rotating member

350: rotational push means

352: cylindrical portion 354: push portion

354-1: Male gear 356a: Pin ball

356: coupling rod

400: vertical member

410: first stopper member fastening groove

410a: Fixing bolt

415: pin ball

420: lower support piece

420a: second stopper member fastening groove 420b: pinhole

450: stopper member

452 fastener 454 female thread

454-1: Stopper protrusion 454-2: Stopper ball

460: escape prevention means

462: extension stopper ball 464: pin ball

470: separation prevention member

472: pinhole 474: elastic spring

500: support member

600: horizontal member

700: cover member

710: third stopper member fastening groove 720: elevating member insertion hole

800: pivot lever

810: insertion rod

810a: coupling rod insertion groove 810b: pin hole

820: hanger

The present invention relates to a height adjustment device for a bench for adjusting the height of a desk or a stool according to the user's request.

As shown in Figure 1, the conventional height adjustment device for a bookshelf, the lower frame 10 is supported on the bottom, the lifting frame 20 is fitted to be able to lift on the upper portion of the lower frame 10, and the It is provided with a control member 30 is fitted into one side of the lower frame 10 to be in communication with the interior of the lower frame 10.

A plurality of coupling holes 21 are formed in the lifting frame 20 at regular intervals, and the engaging rods hung through the lower frame 10 to the coupling holes 21 to the inside of the adjusting member 30 ( 40) is inserted.

The catching rod 40 has a catching protrusion 41 that is caught on the outer surface of the coupling hole 21, a handle that can pull the catching rod 40 to the other end exposed to the outside of the adjusting member 30 ( 42) is attached. A spring 50 is installed on the outer circumferential surface of the locking bar 40 to impart an elastic force so that the locking bar 40 is selectively fitted into the coupling hole 21 of the lifting frame 20.

The operation method of the height adjusting device of the conventional desk and the stool configured as described above is as follows.

First, when the user pulls the handle 42, the spring 50 is compressed by the locking projection 41, the locking rod 40 is introduced into the adjustment member 30, the lifting frame 20 is the lower frame The lifting and lowering becomes free state in (10). In this state, the user adjusts the elevating frame 20 so that the coupling hole 21 and the engaging rod 40 of the elevating frame 20 are aligned in a horizontal state to adjust the stool to the desired height.

When the bookshelf is set to the height desired by the user, the user releases the pulled handle 42. In this case, as the catching rod 40, which has been provided with the elastic force from the spring 50, moves forward, the end of the raising and lowering frame 20 is restricted by engaging the engaging hole 21 formed in the lifting frame 20. do. Accordingly, the user can freely adjust the height of the bookcase to suit his or her body shape.

However, since the height adjustment device on the desk as in the prior art has to pull the handle 42 in the horizontal direction to adjust the height, there is a problem that a large operating force is required.

In addition, since the adjusting member 30, which is locked, protrudes outwardly from the lifting frame 10, it is easy to be damaged by an external force.

In addition, when adjusting the height of the bookshelf, it is inevitably removed by the user from the lifting frame and the lower frame by the user for a limited time, the lifting frame is lowered by its own weight, so the height of the bookshelf you want In order to fit the user has to hold the upper frame, so not only troublesome but also a high risk of safety accidents.

The present invention can easily and conveniently adjust the height of the bookshelf in order to solve the conventional problems as described above, to provide a height adjustment device for the bookshelf that can prevent the fall by the weight of the elevating member when the height is adjusted. There is a purpose.

Height adjustment device for a book stand according to the present invention, the top plate of the desk and the stool is coupled, the top plate support member for supporting it; A pair of elevating members coupled vertically to the upper plate supporting member, the elevating member being provided to enable elevating therein; Coupling portions formed with screw holes at both ends are respectively provided to be horizontally coupled between the pair of lifting members, and a rotation shaft is rotatably provided therein, and both ends of the rotation shaft operate the adjusting means of the lifting member. A rotation member provided with rotation push means for allowing the lifting member to be lifted up and down respectively; A pair of vertical members having a hollow so that the elevating member is inserted therein and having a stopper member at one side thereof; A pair of support members integrally coupled to a lower portion of the pair of vertical members and having a hollow therein; A horizontal member coupled horizontally between the pair of vertical members; Characterized in that consists of.

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

Figure 2 is a combined perspective view showing the height adjustment device for the desk stand of the first embodiment according to the present invention, Figure 3 is an exploded perspective view showing the height adjustment device for the desk stand according to the first embodiment of the present invention, Figure 4 is 5 is an exploded perspective view showing a rotating push means of an embodiment constituted in the height adjustment device for a desk stool according to the first, second, third, and fourth embodiments, and FIG. Combination configuration diagram showing a configuration in which the adjustment means, the elevating member, the stopper member, the vertical member and the horizontal member is coupled, Figure 6 is a combined perspective view showing the adjustment means constituted in the height adjustment device for the desk of the first embodiment according to the present invention 7 is an overall side cross-sectional view showing the height adjustment device for the desk chair of the first embodiment according to the present invention, and FIGS. 8A and 8B are the height adjustment for the desk chair of the first embodiment according to the present invention. In the gear, a coupling configuration diagram showing a configuration in which the rotation lever is coupled, Figures 9a and 9b is a height adjustment device for a stool for the first embodiment according to the present invention, the adjustment means which is lifted by the rotation push means is a stopper member 10 is a side cross-sectional view showing a configuration that is closely fixed to the spaced apart, Figure 10 is a height adjustment device for a bookcase on a second embodiment according to the present invention, the adjusting means, the elevating member, the stopper member, the vertical member and the horizontal member is coupled 11 is a combined perspective view showing the adjustment means constituted in the height adjustment device for the desk stand of the second embodiment according to the present invention, Figure 12 is a height adjustment for the desk stand of the second embodiment according to the present invention. Fig. 13 is an overall side sectional view showing the device, and Fig. 13 shows an adjusting part and a stopper member of an adjusting means in the height adjusting device for a bookcase of a second embodiment according to the present invention. Figure 14a and 14b is an exploded perspective view showing the side of the height adjustment device for a bookshelf according to the second embodiment of the present invention, the control means which is lifted by the rotation push means is fixed to the stopper member spaced apart from the side showing the configuration Fig. 15 is a coupling configuration diagram showing a configuration in which the adjusting means, the elevating member, the stopper member, the vertical member and the horizontal member are coupled in the height adjusting device for the desk according to the third embodiment of the present invention. Fig. 17 is a combined perspective view showing the adjustment means configured in the height adjustment device for the bookshelf of the third embodiment according to the present invention, and Fig. 17 is an overall side cross-sectional view showing the height adjustment device for the bookshelf in the third embodiment according to the present invention. 19 is an exploded perspective view showing the adjusting portion and the stopper member of the adjusting means in the height adjustment device for the bookshelf of the third embodiment according to the present invention. Is a side cross-sectional view showing a configuration in which the height adjustment device for lifting on a bookshelf of the third embodiment according to the present invention is lifted by the rotational push means is tightly fixed to the stopper member and spaced apart, and FIG. 20 is in accordance with the present invention. In the height adjustment device for the bookshelf of the fourth embodiment, it is a coupling configuration diagram showing a configuration in which the adjustment means, the elevating member, the stopper member, the vertical member and the horizontal member are coupled, Figure 21 is a bookcase for the fourth embodiment according to the present invention Combined perspective view showing the adjustment means constituted in the height adjustment device, Figure 22 is an overall side cross-sectional view showing the height adjustment device for the bookshelf of the fourth embodiment according to the present invention, Figures 23a and 23b of the fourth embodiment according to the present invention A side showing a configuration in which the height adjusting device for a stool stand is fixed to the stopper member by a control means which is lifted and lowered by the rotational push means. 24 is an exploded perspective view showing a rotational push means of another embodiment constituted in the height adjustment device for the bench seat according to the first, second, third, and fourth embodiments of the present invention, and FIG. 25 is a rotational push means of another embodiment. 26 is a side cross-sectional view showing a configuration coupled to the push member, Figure 26a and 26b is a coupling configuration showing a configuration in which the rotation push means of the other embodiment is coupled to the height adjustment device for the desk chair of the first, second, third, and fourth embodiments. .

Before describing the height adjustment device for a book stand according to a preferred embodiment of the present invention in detail, the height adjustment device for a book stand of the present invention can be applied to both a desk or a stool, in the present embodiment is applied to a desk for convenience For illustration and explanation.

Height adjustment device for a bookshelf according to the present invention, the upper plate (1) of the desk and the stool is coupled, the upper plate support member 100 for supporting it; A pair of lifting members 200 coupled vertically to the upper plate supporting member 100 and provided with an adjusting means 250 to enable lifting therein; Coupling portions 304 each having a screw hole 302 formed at both ends thereof are horizontally coupled between the pair of lifting members 200, and a rotation shaft 310 is rotatably provided therein. Rotating members 300 at both ends of the rotating shaft 310 are provided with rotating push means 350 for operating the lifting means 200 to elevate the lifting means 200. A pair of vertical members 400 having a hollow so that the elevating member 200 is inserted therein and having a stopper member 450 at one side thereof; A pair of supporting members 500 integrally coupled to the pair of vertical members 400 and having a hollow therein; A horizontal member 600 coupled horizontally between the pair of vertical members 400; Is made of.

In this case, the upper plate support member 100 has a hollow therein, and an insertion hole 112b is formed through the upper surface thereof so that the support coupling screw 112a is inserted therein, and corresponds to the insertion hole 112b. The lower surface of the fastening hole (112c) is formed so that the support coupling screw (112a) is fastened, the other side of the upper fastening groove (114c) is fastened to the upper plate coupling screw 114a is formed so that the upper plate is coupled, the fastening A pair of longitudinal frames 110 through which an insertion groove 114b is formed so that the upper plate coupling screw 114a is inserted into a lower surface of the position corresponding to the groove 114c; A transverse frame 120 coupled to and supported by the pair of longitudinal frames 110; Is done.

Fastening piece 216 is formed on the upper inner surface of the elevating member 200, the upper plate fastening hole 216a is formed to be mutually fastened by the fastening hole 112c and the support coupling screw 112a of the upper plate (1) This is made up.

In addition, one side of the elevating member 200, the coupling hole 220a to correspond to the screw hole 302 of the engaging portion 304 so that the coupling member 304 of the rotation member 300 is coupled to the elevating member 200. It is formed, the rotation push means fitting hole 220 is formed through the communication with the inside so that the rotation push means 350 of the rotation member 300 is partially inserted into the inside.

On the other hand, the horizontal member 600 is formed to be inclined at 15 ° to 30 ° inward to reduce the fatigue by the user to feel the comfort put on the foot.

On the other hand, the vertical member 400, the stopper member 450 is formed with a first stopper member fastening groove 410 at one upper end to be fixed to the inside by a fixing bolt (410a), a pin is inserted into the lower end The pin hole 415 is formed through. The pin hole 420b is formed to correspond to the pin hole 415, and a second stopper member fastening groove 420a is formed to fasten and fix the fixing bolt 410a to the lower portion of the stopper member 450. Lower support piece 420 is configured. A third stopper member fastening groove 710 is formed at one end thereof so as to correspond to the first stopper member fastening groove 410, and the elevating member insertion hole 720 is formed at the other end in the same manner as the outer circumferential shape of the elevating member 200. The cover member 700 is formed through).

In addition, the vertical member so that the insertion rod 810 of the rotation lever 800 to be described below to be connected to the rotation push means 350 coupled to the rotation push means fitting hole 220 of the vertical member 400 is fitted. The other side of the (200) is formed with a latch hole 218.

Referring to the height adjustment device for the desk chair of the first, second, third, fourth embodiments of the present invention with the above configuration,

My Example 1

As shown in Figure 2 to 9b, the adjustment means 250 according to the first embodiment, the support rod 262 is formed at a predetermined length on one side, the end of the support rod 262 is the rotating shaft ( 310) The push member 264 is formed to be lifted and lifted by the rotation push means 350 provided at both ends, and on the other side, the upper fitting portion 266a is formed to protrude so that the elastic spring 266 is fitted thereon. A lifting support part 260 composed of a support part contact surface 268 formed to be inclined diagonally; The control part contact surface 272 is formed on the outer side in a shape corresponding to the support part contact surface 268 so as to be in close contact with the support part contact surface 268 of the lifting support 260, the stopper member 450 on the other side. A close contact portion 274 is formed in close contact with each other, and the upper and lower portions of the close contact portion 274 are provided with an elastic spring 276 supported on the inner circumference of the elevating member 200, respectively, a pair on both sides The adjusting unit 270 is formed through the pin hole 278; The lower fitting portion 280a is formed to protrude on one side so that the lower portion of the elastic spring 266 fitted to the upper fitting portion 266a of the elevating support portion 260 is protruded, and a plurality of side surfaces are fixed to the elevating member 200. A spring fixing part 280 in which a pin hole 280b is formed; Is made of.

At this time, the elevating member 200 according to the first embodiment, the spacer insertion groove 210 is fitted to be in communication with the inside on one side, the spacer insertion groove 210 is fitted in the close contact portion 274 of the adjusting unit 270, Long holes 212 are formed at both ends of the spacer insertion groove 210 so as to be able to flow in a position corresponding to the pin hole 278 of the adjustment unit 270, and the spring fixing portion of the adjustment means 250 ( The pin hole 214 is formed at a position corresponding to the pin hole 280b of the spring fixing part 280 so that the 280 is inserted into and fixed to the lower portion.

Here, by being coupled to the long hole 212 by the pin, the adjusting unit 270 is possible to move forward, retreat.

Meanwhile, male threads 274a are formed on one surface of the close contact portion 274 of the adjusting unit 270.

The stopper member 450 according to the first embodiment has a predetermined length, and fastening holes 452 are formed at upper and lower end surfaces thereof, respectively, and an outer threaded portion of the stopper member 450 is fixed to the male screw wire 274a so as to be tightly fixed. 454 is formed.

My 2 Example

As shown in Figure 10 to 14b, the adjusting means 250 according to the second embodiment, a plurality of stopper grooves 274b are formed on one surface of the close contact portion 274 of the adjusting unit 270.

In addition, the stopper member 450 according to the second embodiment has a predetermined length, and fastening holes 452 are formed at upper and lower end surfaces thereof, respectively, and a stopper groove 274b of the close contact portion 274 is formed at the outer circumference. ) And a plurality of stopper protrusions 454-1 are formed to be in close contact with each other.

My 3 Example

As shown in Figure 15 to 19b, the adjustment means 250 according to the third embodiment, the support rod 262 is formed at a predetermined length on one side, the end of the support rod 262, the pivot shaft 310 A push member 264 is formed to be elevated by the rotation push means 350 provided at both ends; An elevating support part 260 formed at the other end of the upper fitting part 266a so as to be fitted with an elastic spring 266 to protrude, and an outer side of the support part contact surface 268 formed to be inclined diagonally; The control part contact surface 272-1 is formed on the outer side in a shape corresponding to the support part contact surface 268 to be in close contact with the support part contact surface 268 of the elevating support part 260, and the stopper member ( A stopper sphere 274c is formed to be inserted into and fixed at 450, and upper and lower portions of the stopper sphere 274c are provided with elastic springs 276-1 supported on the inner circumference of the elevating member 200, respectively. The control unit 270-1 is formed through a plurality of pin holes 278 is formed; The lower fitting portion 280a is formed to protrude on one side so that the lower portion of the elastic spring 266 fitted to the upper fitting portion 266a of the elevating support portion 260 is projected on one side, and a pair is provided on the side to be fixed to the elevating member 200. A spring fixing part 280 in which the pin hole 280b is formed; Is made of.

At this time, the elevating member 200 according to the third embodiment, the stopper hole insertion groove 210-1 is inserted into the stopper sphere insertion groove 210-1 of the adjusting portion 270-1 is in communication with the inside on one side. And a long hole 212 is formed at both ends of the stopper inserting groove 210-1 so as to be able to flow at a position corresponding to the pin hole 278 of the adjusting part 270-1. A pinhole 214 is formed at a position corresponding to the pin hole 280b of the spring fixing portion 280 so that the spring fixing portion 280 of the 250 is inserted into and fixed to the bottom.

Here, by being coupled to the long hole 212 by the pin, the adjusting unit 270-1 is able to move forward, retreat.

On the other hand, the stopper member 450 according to the third embodiment has a predetermined length, and fastening holes 452 are formed at upper and lower end surfaces thereof, respectively, and at one side of the stopper tool of the adjusting part 270-1. A plurality of stopper holes 454-2 are formed to penetrate through a predetermined interval so that the 274c is inserted and fixed. At this time, the stopper hole 454-2 formed at the lowermost end of the stopper hole 454-2 of the stopper member 450 is formed with an extension stopper hole 462 which further extends it downward, and the extension stopper hole 462 ) Is provided with a separation prevention means 460 is formed by penetrating the pin hole 464 is inserted from one end to the other end; Inserted into the extension stopper hole 462 of the separation preventing means 460, the pinhole 472 is formed through a position corresponding to the pin hole 464 and the elastic spring 474 is coupled to the inner side of the pin The separation preventing member 470 is rotated on the basis of the.

By the separation preventing means 460 and the separation preventing member 470 it is possible to prevent the elevating member 200 according to the third embodiment from falling further down.

My 4 Examples

As shown in Figure 20 to 23b, the adjustment means 250 according to the fourth embodiment, the support rod 262 is formed on one side with a predetermined length, the end of the support rod 262, the pivot shaft 310 The push member 264 is formed to be lifted and lifted by the rotation push means 350 provided at both ends, and the other end of the upper fitting portion 266a is formed so that the elastic spring 266 is fitted therein. A lifting support portion 260-1 formed by forming a roller inserting groove 269b into which a roller 269a rotating by a pin inserted and fixed to 269c is formed; A roller contact surface 272-2 is formed on an outer side surface so that the roller 269a of the lifting support part 260-1 comes into close contact with the roller 269a, and the stopper member 450 is formed on the other side of the roller contact surface 272-2. A close contact portion 274-1 having a male thread line 274a-1 is formed to be tightly fixed to the upper surface of the roller, and a shaft 278a-1 is inserted into an upper one side of the roller contact surface 272-2. A shaft hole (278-1) is formed to enable the axial rotation, the adjustment portion 270-2 is formed by the elastic spring 276-2 is coupled to the upper portion; The lower fitting portion 280a is formed to protrude on one side so that the lower portion of the elastic spring 266 fitted to the upper fitting portion 266a of the elevating support portion 260-1 is fixed to the elevating member 200. A spring fixing part 280 in which a pair of pin holes 280b are formed; Is made of.

At this time, the lifting member 200 according to the fourth embodiment, a spring support piece 215 is formed therein so that the elastic spring 276-2 of the adjusting unit 270-2 is supported, and the adjusting unit Spacer insertion groove 210-2 into which the close contact portion 274-1 of 270-2 is inserted is formed to be in communication with the inside on one side, and one end of the spacer insertion groove 210-2. The shaft hole 212-1 is formed at a position corresponding to the shaft hole 278-1 of the adjusting unit 270-2, and the spring fixing part 280 of the adjusting means 250 is inserted and fixed to the lower portion. The pin hole 214 is formed at a position corresponding to the pin hole 280b of the spring fixing part 280.

On the other hand, the stopper member 450 according to the fourth embodiment has a predetermined length, and fastening holes 452 are formed on upper and lower end surfaces, respectively, and the number of close contact portions 274-1 on the outer circumference. A female thread line 454 is formed to be tightly fixed to the screw line 274a-1.

The push member and the rotating push means provided in the height adjusting device for a book holder according to the first, second, third, and fourth embodiments of the present invention are constituted by one embodiment and another embodiment as follows.

Example

As shown in FIG. 4, the push member 264 according to the embodiment is provided with a pressing piece 264a having the same shape as the inner circumference of the elevating member 200.

On the other hand, the rotation push means 350 according to an embodiment are formed on both ends of the rotation shaft 310, the cylindrical portion 352 which is integrally protruding integrally formed on one end surface of the rotation shaft 310 )Wow; A push portion 354 integrally formed on the outer circumference of the cylindrical portion 352 and for elevating the pressing piece 264a of the push member 264 by rotation; A coupling rod 356 formed integrally protruding from an outer end surface of the cylindrical portion 352 and having a pin hole 356a formed therethrough; Is done.

Other Example

As shown in FIGS. 24 to 26B, the push member 264 according to another embodiment may have a close contact surface 264c having the same shape as the inner circumference of the lift member 200 on one side thereof. The female gear part 264b is formed in the side surface.

Rotating push means 350 according to another embodiment are formed on both ends of the pivot shaft 310, and the cylindrical portion 352 integrally protruding integrally formed on one end surface of the pivot shaft 310 and ; A male gear part 354-1 formed integrally with one side of the cylindrical part 352, and being lifted by being rotated by being engaged with the female gear part 264b of the push member 264; A coupling rod 356 formed integrally protruding from an outer end surface of the male gear portion 354-1 and having a pin hole 356 a formed therein; Is done.

Coupled to the coupling rod 356 of the rotation push means 350 according to one embodiment and the other embodiment of the configuration as described above to operate the push member 264 to the adjusting means 250 and the stopper member 450 By lifting the lifting member 200 by,

Formed to protrude integrally on one side is a coupling rod insertion groove (810a) is formed so that the coupling rod 356 is inserted therein, the position corresponding to the pin hole (356a) in communication with the coupling rod insertion groove (810a) Rotating lever 800 is formed by inserting rod 810 having a pin hole 810b is formed, the other end of the pivoting lever 800 is formed integrally to hang a bag or bag 820 is further configured.

Looking at the operating state of the height adjustment device for the desk according to the first, second, third, fourth embodiment with the configuration as described above,

First, an operating state of the height adjusting device for the desk according to the first embodiment of the present invention will be described in detail with reference to FIGS. 9A to 9B.

a) When the rotation lever 800 is gripped and rotated by hand, the push part 354 of the rotation push means 350 connected to the insertion rod 810 of the rotation lever 800 is rotated in the same direction at the same time.

b) At this time, the push member 264 located below the push part 354 of the pivot push means 350 is an elastic spring coupled to the spring fixing part 280 and the lifting support part 260 of the adjusting means 250. The pressing piece 264a of the push member 264 and the push portion 354 of the rotation push means 350 are elastically supported by the reference numeral 266. Therefore, the push part 354 rotated by the rotation of the rotation lever 800 presses the pressing piece 264a in the downward direction.

c) As the lifting support 260 is lowered according to the operation, the adjusting part adhesion surface 272 of the adjusting part 270 supported on the support contact surface 268 of the lifting support 260 is the lifting support ( 260 is retracted along the support contact surface 268 in proportion to the descent distance.

d) The elastic spring 276 of the adjusting unit 270 is elastically fixed to the inner wall of the elevating member 200, so that the retraction is possible by the operation of c).

e) Therefore, the closely spaced portion 274 of the adjusting unit 270 is inserted into the spaced apart insertion groove 210 of the elevating member 200 to protrude to the outside, and formed on one surface of the tightly spaced portion 274. The male thread line 274a is tightly fixed to the female thread line 454 of the stopper member 450 provided on one side of the vertical member 400. That is, it is fixed so that it can no longer lift. In this state, the close contact portion 274 of the control unit 270 fixedly fixed to the stopper member 450 by the operation of a) b) c) d) is spaced apart from the stopper member 450, thereby providing a vertical member. Height adjustment of the elevating member 200 inserted into the 400 is possible. The user rotates the pivoting lever 800 and grasps the upper plate of the desk by hand, and adjusts the height up and down easily and simply.

f) When the height adjustment is finished, rotate the pivoting lever 800 to its original position.

g) The pressing piece 264a of the push member 264, which has been pressed by the push part 354 of the pivoting push means 350, is also rotated to its original position in accordance with the operation of f). Will move back to the top. That is, the upper portion is moved upward by the elastic spring 266 provided at the lower portion of the lifting support 260.

h) by the lifting support 260 moved to the upper portion, the control unit 270, which was in close contact with the support contact surface 268 of the lifting support 260 is retreated forward, thereby adjusting the above-mentioned control unit 270 The close contact 274 of the stopper member 450 is fixed in close contact with the height adjustment of the desk is finished.

Therefore, it is possible to easily and simply adjust the height of the desk and the stool only by the rotation of the rotation lever 800.

On the other hand, the pivoting lever 800 may be provided with a lever hole 218 in each of the pair of lifting members 200 to be provided in any one of the pair of lifting members 200.

14a to 14b will be described in detail the operating state of the height adjustment device for the desk according to the second embodiment of the present invention.

Same as the operation (a) to i)) of the first embodiment, the stopper groove 274b is formed at regular intervals instead of the male thread 274a on one surface of the close contact portion 274 of the control unit 270 and In addition, a stopper protrusion 454-1 is formed on a part of the outer circumference of the stopper member 450 so as to be engaged with the stopper groove 264b.

Therefore, the operating state of the second embodiment is omitted.

19a to 19b will be described in detail the operating state of the height adjustment device for the desk according to the third embodiment of the present invention.

a ') When the rotation lever 800 is gripped and rotated by hand, the push portion 354 of the rotation push means 350 connected to the insertion rod 810 of the rotation lever 800 is rotated in the same direction at the same time. .

b ') At this time, the push member 264 located below the push portion 354 of the pivot push means 350 is elastically coupled to the spring fixing portion 280 and the lifting support 260 of the adjusting means 250 The pressing piece 264a of the push member 264 and the push part 354 of the rotation push means 350 are elastically supported by the spring 266. Therefore, the push part 354 rotated by the rotation of the rotation lever 800 presses the pressing piece 264a in the downward direction.

c ') The elevating support part 260 is lowered according to the operation, so that the adjusting part close contact surface 272-1 of the adjusting part 270-1 supported by the supporting part close contact surface 268 of the elevating support part 260. The retraction support part 260 retreats along the support part contact surface 268 in proportion to the descending distance.

d ') The elastic spring 276-1 of the adjusting part 270-1 is elastically fixed to the inner wall of the elevating member 200, so that the c') can be retracted by the operation.

e ') Therefore, the stopper sphere 274c of the adjusting unit 270-1 is partially inserted into the stopper sphere inserting groove 210-1 of the elevating member 200 to protrude outward, and thus, the inner side of the vertical member 400. It is inserted into and fixed to the stopper hole 454-2 of the stopper member 450 provided therein. That is, it is fixed so that it can no longer lift. In this state, the stopper port 274c of the adjusting part 270-1 inserted into and fixed to the stopper hole 454-2 of the stopper member 450 is released by the operation of the a ') to the d'). It is possible to adjust the height of the lifting member 200 inserted into the vertical member 400.

f ') When the height adjustment is finished, rotate the pivoting lever 800 to its original position.

g ') The pressing piece 264a of the push member 264, which was pressed by the push part 354 of the pivoting pusher 350, is also rotated to its original position as the f') operates, and the lifting support part is located at the lower part thereof. 260 moves back to the top. That is, the upper portion is moved upward by the elastic spring 266 provided at the lower portion of the lifting support 260.

h ') by the lifting support 260 moved to the upper portion, the control unit 270-1, which is in close contact with the support contact surface 268 of the lifting support 260, is retracted to move forward, thereby adjusting the adjustment unit ( The stopper tool 274c of 270-1 is inserted into and fixed to the stopper hole 454-2 of the stopper member 450, thereby ending the height adjustment of the desk.

23a to 23b will be described in detail the operating state of the height adjustment device for the desk according to the fourth embodiment of the present invention.

a '') When the rotation lever 800 is gripped and rotated by hand, the push part 354 of the rotation push means 350 connected to the insertion rod 810 of the rotation lever 800 rotates in the same direction at the same time. do.

b '') At this time, the push member 264 located below the push part 354 of the pivot push means 350 is connected to the spring fixing part 280 and the lifting support part 260-1 of the adjusting means 250. The pressed piece 264a of the push member 264 and the push part 354 of the pivoting push means 350 are elastically supported by the coupled elastic spring 266. Therefore, the push part 354 rotated by the rotation of the rotation lever 800 presses the pressing piece 264a in the downward direction.

c '') As the lifting support 260-1 is lowered according to the operation, the roller contact surface 272- of the adjusting part 270-2 supported by the roller 269a of the lifting support 260-1. When it descends along 2) and leaves the roller contact surface 272-2, the adjusting unit 270-2 rotates based on the shaft 278a-1 inserted into the shaft hole 278-1.

d '') the elastic spring 276-2 of the adjusting unit 270-2 is elastically fixed to the spring support piece 215 formed separately on the elevating member 200, thereby operating by the c ''). It rotates inward.

e '') Therefore, the close contact portion 274-1 of the adjusting unit 270-2 protrudes outwardly into the space insertion hole 210-2 of the elevating member 200, and thus the vertical member 400. It is fixed to the female thread line 454 of the stopper member 450 provided on one side of the inside. That is, it is fixed so that it can no longer lift. In this state, the close contact portion 274-1 of the adjusting part 270-2 fixed to the female threaded line 454 of the stopper member 450 by the operation of the a '') to d '') is spaced apart. As a result, the height of the lifting member 200 inserted into the vertical member 400 can be adjusted. At this time, a male thread line 274a-1 is formed in the close contact portion 274-1. However, this is only one embodiment. That is, the stopper groove 274b or the stopper sphere 274c may be formed in the close contact portion 274-1, and the stopper protrusion 454-1 or the stopper hole 454- in the stopper member 450 accordingly. 2) can be formed.

f '') When the height adjustment is finished, rotate the pivoting lever 800 to its original position.

g '') The pressing piece 264a of the push member 264, which was pressed by the push part 354 of the pivoting push means 350, is also rotated to its original position and positioned at the lower portion thereof according to the operation of f ''). The lifting support 260-1 is moved upward again. That is, it moves upward by the elastic spring 266 provided at the lower portion of the lifting support 260-1.

h ″) by the lifting support 260-1 moved to the upper position, the adjustment unit 270-2 in which the roller 269a of the lifting support 260-1 is rotated is returned to its original position. That is, by being in close contact with the roller contact surface (272-2) of the control unit (270-2) to rotate outward, the close contact portion 274-1 of the control unit (270-2) is a stopper member ( 450) tightly fixed to the height of the desk is finished.

In this case, the spacer insertion hole 210-2 may be formed to be rotatable in a state where the adhesion spacer 274-1 is inserted.

As described above, the pivoting push means 350 and the push member 264 of the height adjusting device for the bookshelf according to the first, second, third, and fourth embodiments of the present invention are illustrated in the embodiment shown in FIG. The rotation push means 350 and the push member 264 described in another embodiment can be selectively applied.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention may be made by those skilled in the art within the above technical scope.

According to the present invention described above, a large operation force is not required, it is possible to easily adjust the height of the bookshelf, to prevent the falling down by the weight of the elevating member, it is firmly fixed tightly to prevent the safety accident It works.

In addition, there is an effect that can easily and easily adjust the height of the bookshelf.

Claims (17)

A top plate supporting member coupled to the desk and a stool; A pair of elevating members coupled vertically to the upper plate supporting member, the elevating member being provided to enable elevating therein; Coupling portions formed with screw holes at both ends are respectively provided to be horizontally coupled between the pair of lifting members, and a rotation shaft is rotatably provided therein, and both ends of the rotation shaft operate the adjusting means of the lifting member. A rotation member provided with rotation push means for allowing the lifting member to be lifted up and down respectively; A pair of vertical members having a hollow so that the elevating member is inserted therein and having a stopper member at one side thereof; A pair of support members integrally coupled to a lower portion of the pair of vertical members and having a hollow therein; A horizontal member coupled horizontally between the pair of vertical members; Height adjustment device for a bookcase, characterized in that consisting of. The method of claim 1, wherein the top plate support member, It has a hollow inside, one side of the upper surface is inserted through the insertion hole so that the support coupling screw is inserted, the lower surface of the position corresponding to the insertion hole is formed with a fastening hole so as to engage the support coupling screw, the other side A pair of longitudinal frames having a coupling groove to which the upper plate coupling screw is coupled to couple the upper plate to the coupling plate, and an insertion groove penetratingly formed at the lower surface of the position corresponding to the coupling groove to insert the upper plate coupling screw; A transverse frame coupled to and supported by the pair of longitudinal frames; Height adjustment device for a bookcase, characterized in that consisting of. The method of claim 1, wherein the adjusting means, A support rod is formed at a predetermined length on one side, and a push member is formed at an end of the support rod to be elevated by a rotation push means provided at both ends of the pivot shaft. An elevating support portion configured to protrude from an upper end portion of the other side such that an elastic spring is fitted therein, and an outer side surface of the elevating support portion formed of an intimate support portion formed to be inclined diagonally; A control part contact surface is formed on the outer side in a shape corresponding to the support part contact surface to be in close contact with the support contact contact surface of the elevating support portion, the other contact surface is formed in close contact with the stopper member, the close contact portion The upper and lower parts are provided with elastic springs supported on the inner circumference of the elevating member, respectively, and adjusting portions formed on both sides thereof with a plurality of pin holes formed therethrough; A spring fixing part in which a lower fitting portion protrudes on one side so that a lower portion of the elastic spring fitted to the upper fitting portion of the elevating support portion is fitted, and a plurality of pin holes are formed on the side to be fixed to the elevating member; Height adjustment device for a bookcase, characterized in that consisting of. The method of claim 3, wherein the lifting member, Spacer insertion groove into which the close contact portion of the control unit is fitted is formed in communication with the inside on one side, and the long hole is formed at both ends of the spacer insertion groove to enable flow in a position corresponding to the pin hole of the control unit, Height adjustment device for the bench, characterized in that the pin hole is formed in a position corresponding to the pin hole of the spring fixing portion so that the spring fixing portion of the adjustment means is inserted into the lower portion. The method of claim 3, wherein A male thread is formed on one surface of the close contact portion of the control unit. The stopper member has a predetermined length, the upper and lower end surfaces are formed with fastening holes, respectively, the outer periphery of the height adjustment device for a bookcase, characterized in that the female threaded line is formed to be tightly fixed with the male threaded line. The method of claim 3, wherein A plurality of stopper grooves are formed on one surface of the close contact space of the control unit. The stopper member has a predetermined length, and the upper and lower end faces are formed with fastening holes, respectively, the outer periphery of the height adjustment device for a book stand characterized in that a plurality of stopper protrusions are formed to be fixed in close contact with the stopper groove of the close contact portion. . The method of claim 1, wherein the adjusting means, A support rod is formed at a predetermined length on one side, and a push member is formed at an end of the support rod to be elevated by a rotation push means provided at both ends of the pivot shaft. An elevating support portion configured to protrude from an upper end portion of the other side such that an elastic spring is fitted therein, and an outer side surface of the elevating support portion formed of an intimate support portion formed to be inclined diagonally; The control part contact surface is formed on the outer side in a shape corresponding to the support part contact surface to be in close contact with the support part contact surface of the elevating support, the stopper sphere is formed to be inserted into the stopper member and fixed to the other side, The upper and lower parts are provided with elastic springs supported on the inner circumference of the elevating member, respectively, and adjusting portions formed on both sides thereof with a plurality of pin holes formed therethrough; A spring fixing part in which a lower fitting portion protrudes on one side so that a lower portion of the elastic spring fitted to the upper fitting portion of the elevating support portion is fitted, and a plurality of pin holes are formed on the side to be fixed to the elevating member; Height adjustment device for a bookcase, characterized in that consisting of. The method of claim 7, wherein the lifting member, The stopper sphere insertion groove into which the stopper sphere of the adjustment unit is fitted is formed to communicate with the inside on one side thereof, and both ends of the stopper sphere insertion groove are formed to allow flow to a position corresponding to the pin hole of the adjustment unit. Height adjustment device for the bench, characterized in that the pin hole is formed in a position corresponding to the pin hole of the spring fixing portion so that the spring fixing portion of the adjustment means is inserted into the lower portion. The method of claim 7, wherein the stopper member, Has a predetermined length, the upper and lower end surface is formed with a fastening hole, respectively, on one side of the stopper height adjustment device for the bench, characterized in that a plurality of stopper holes are formed through a predetermined interval so as to be fixed to the stopper sphere is inserted into the adjustment. The method of claim 9, The stopper hole formed at the lowermost end of the stopper hole of the stopper member is formed with an extension stopper hole extending further downward, wherein the extension stopper hole has a pin hole into which a pin is inserted, penetrated from one end to the other end thereof. Is provided, Inserted into the extension stopper hole of the separation preventing means, the pinhole is formed through the position corresponding to the pin hole and the elastic spring is coupled to the inner surface is characterized in that the separation prevention member is further provided to rotate relative to the pin. Height adjustment device for the desk. The method of claim 1, wherein the adjusting means, A support rod is formed at a predetermined length on one side, and a push member is formed at an end of the support rod to be elevated by a rotation push means provided at both ends of the pivot shaft. An elevating support portion configured to protrude from an upper end portion so that the elastic spring is fitted to the other side thereof, and a roller insertion groove formed therein to be inserted into a rotating roller fixed by a pin; The roller contact surface is formed on the outer surface so that the roller of the lifting support part is in close contact with the roller, and the other side of the roller contact surface is provided with a close contact portion having a male thread to be fixed to the stopper member and fixed to the roller contact surface. An upper side of the shaft is inserted into the shaft hole is formed to enable the shaft rotation, the upper portion of the adjusting portion is configured to be coupled to the elastic spring; A spring fixing part in which a lower fitting portion protrudes on one side so that a lower portion of the elastic spring fitted to the upper fitting portion of the elevating support portion is fitted, and a plurality of pin holes are formed on the side to be fixed to the elevating member; Height adjustment device for a bookcase, characterized in that consisting of. The method of claim 11, wherein the lifting member, A spring support piece is formed therein so that the elastic spring of the control part is supported, and the spacer insert groove into which the close contact part of the control part is fitted is formed in communication with the inside on one side thereof, and the adjustment part is provided at one end of the spacer insert groove. A shaft hole is formed at a position corresponding to the negative shaft hole, and the height adjustment device for the bookshelf, characterized in that the pin hole is formed at a position corresponding to the pin hole of the spring fixing portion so that the spring fixing portion of the adjustment means is inserted into the bottom fixed. . The method of claim 11, wherein the stopper member, Has a predetermined length, the upper and lower end faces are formed with fastening holes, respectively, the outer periphery of the height adjustment device for a bookcase, characterized in that the female thread line is formed to be fixed in close contact with the male thread line of the close contact portion. The method according to claim 3 or 7 or 11, The push member is formed with a pressing piece having the same shape as the inner circumference of the elevating member, The rotating push means may be formed at both ends of the rotating shaft, and a cylindrical portion protruded integrally from one end surface of the rotating shaft; A push portion protruding integrally with the outer circumference of the cylindrical portion and for lifting up and down the pressed piece of the push member by rotation; A coupling rod protruding integrally with an outer end surface of the cylindrical portion and having a pin hole formed at one side thereof; Made of Being coupled to the coupling rod, is formed to protrude integrally on one side, the coupling rod insertion groove is formed therein so that the coupling rod is inserted, the insertion rod having a pinhole to a position corresponding to the pin hole in communication with the coupling rod insertion groove The rod is formed, the other side lower end height adjustment device for a bookcase, characterized in that the rotation lever is formed is formed integrally with the hook is formed so as to hang the bag or bag. The method according to claim 3 or 7 or 11, The push member is formed on one side of the lifting surface of the same shape as the inner circumference of the lifting member, the other side is formed with a female gear, The rotating push means may be formed at both ends of the rotating shaft, and a cylindrical portion protruded integrally from one end surface of the rotating shaft; A male gear part which is integrally formed on one side of the cylindrical part and is lifted by being rotated by being engaged with the female gear part of the push member; A coupling rod formed integrally with the outer end surface of the male gear and having a pin hole formed at one side thereof; Made of Being coupled to the coupling rod, is formed to protrude integrally on one side, the coupling rod insertion groove is formed therein so that the coupling rod is inserted, the insertion rod having a pinhole to a position corresponding to the pin hole in communication with the coupling rod insertion groove The rod is formed, the other side lower end height adjustment device for a bookcase, characterized in that the rotation lever is formed is formed integrally with the hook is formed so as to hang the bag or bag. The method of claim 1, wherein the horizontal member, Elevation device for a bookshelf, characterized in that formed inclined at 15 ° to 30 ° inward. The method of claim 1, wherein the vertical member, A first stopper member fastening groove is formed at an upper end of one side such that the stopper member is fixed to the inside by a fixing bolt, and a pin hole through which a pin is inserted is formed through the lower end; A lower support piece having a pin hole formed therethrough corresponding to the pin hole, and having a second stopper member fastening groove formed therein so as to fasten a fixing bolt to a lower portion of the stopper member; A third stopper member fastening groove is formed at one end thereof so as to correspond to the first stopper member fastening groove, and a cover member having a lifting member insertion hole formed at the other end through the same shape as the outer circumferential shape of the elevating member; Height adjustment device for the bookcase, characterized in that made.

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