KR200409173Y1 - Desk having Top Plate capable Angle Setting Using Helical Gear - Google Patents

Abstract

The present invention is a pair of gears that are rotatably fixed to the inside of the pair of front legs and engaged in a direction perpendicular to each other, and a pair of one side is fixed to the lower end of the top plate and the other side is screwed with any one of the pair of gears And a power transmission member for interconnecting and rotating the other one of the pair of gear units respectively disposed on the pair of front legs and rotating the same, and a power transmission member connected to one side of the power cutting member. It includes a tilt adjusting portion consisting of a rotary knob for rotating; Setting the inclination of the upper plate, by rotating the rotary knob in one direction or the other direction to rotate any one of the pair of gears respectively disposed inside the pair of front legs to transmit the power in a right direction to the remaining gears engaged with the pair It is characterized by lifting or lowering the elevating member.

Desk, Top, Tilt, Angle, Height, Helical, Gear

Description

Desk with Top Plate Capable Angle Setting Using Helical Gear

1 is a schematic perspective view showing a desk having a top plate capable of tilt adjustment using a helical gear according to the present invention,

FIG. 2 is a side view as seen in the direction A shown in FIG. 1,

3 is a schematic cross-sectional view showing a portion B shown in FIG.

Figure 4 is a schematic perspective view showing the inclination adjustment unit shown in Figure 3,

5 is a cross-sectional view of the fixed block along the line C-C shown in FIG.

Figure 6 is a schematic perspective view showing the coupling relationship of the inclination control unit of the present invention,

7 is a schematic cross-sectional view showing a state of supporting the fixing block of the cover shown in FIG. 6;

8 is a schematic plan sectional view showing a state of supporting the fixed block of the cover shown in FIG. 7;

9 is a schematic cross-sectional view taken along the line D-D shown in FIG. 3.

* Description of Signs for Main Parts in Drawings *

11a, 11b: front leg 12a, 12b: rear leg

13a, 13b: horizontal frame 14a, 14b: connecting frame

20: top plate 30, 33: hinge portion

31,37: Hinge axis 35: Long hole

41: rotary knob 42: cover

43: fixed block 44: first gear

45: power transmission member 46: second gear

47: bearing 48: elevating member

71a: first guide roller 71b: second guide roller

The present invention relates to a desk having an adjustable top plate, and in particular, the tilt of the top plate can be tilted using a helical gear that can prevent the slope of the set top plate from changing when the load is applied downward. It relates to a desk having a top plate.

In general, the desk is composed of a drawer frame formed with a top plate for work or learning and a storage space for storing belongings or books, and a support frame for supporting the drawer frame from the floor.

Such a conventional desk includes a top plate made of wood or synthetic resin, and a drawer frame arranged on a bottom of the top plate and formed in a downward direction to form a storage space so that a user can place a work, and the drawer. The frame is seated, and the top plate and the drawer frame are bolted together, so that the desk is held in a horizontal frame for holding.

However, in the desk according to the prior art, since the top plate constituting the workbench is combined with the drawer frame and the horizontal frame at the same time, the angle formed by the top plate and the horizontal frame is kept parallel to the horizontal frame, so that the work requiring precision such as sketching or drawing There is a problem in that when installing the drafting desk to be adjusted in the upper surface is installed separately.

On the other hand, the desk published in Utility Model Registration No. 341983 to solve this problem, the hinge is formed on the top plate and the pedestal, the cylinder is installed on one side of the pedestal connected to the upper portion of the lower surface of the desk, the force of the cylinder As the top plate of the desk is inclined, the drawer installed at the bottom of the top plate can be moved up and down and back and forth, and the movement of the drawer is also automatically lowered by the weight of the drawer by removing the fastening of the fixing ring formed at one side of the drawer. It is configured to be lowered and adjustable.

By the way, in the case of a desk having such a structure, the overall structure is very complicated, it takes a lot of work maneuver to produce such a complex structure, there was a problem that the work efficiency and productivity is reduced.

In addition, the conventional desk as described above is operated by a gear or the like driven in the same rotational direction as the lifting direction when the upper and lower ends of the upper plate through the inclination adjusting unit, in this case, the person puts on the own weight or the upper plate of the upper plate. When the upper plate receives a large load in the downward direction such as sitting, there is a problem that the inclination of the upper plate set at a predetermined angle is changed as the gear rotates in the downward direction of the upper plate by this load.

In order to solve this problem, after setting the inclination of the top plate, a separate locking device must be included in the inclination control unit to maintain it, which not only complicates the structure of the inclination control unit but also increases the labor and increases productivity. There was a problem brought about.

The present invention is conceived in view of the problems of the prior art, the purpose of which is a helical that can prevent the inclination of the top plate set when the load is applied to the weight of the top plate or the top plate downward without a separate locking device It is to provide a desk having a top plate capable of adjusting the tilt using a gear.

In order to achieve the above object, the present invention is hinged to a pair of horizontal frames, respectively, through a pair of hinges coupled to the lower surface of the rear end so that the top plate is set to be inclined, a pair of front fixed to the bottom of the pair of horizontal frames In a desk having a rear leg, a pair of gear parts rotatably fixed to the inside of the pair of front legs and engaged at right angles to each other, and one side fixed to the lower end of the upper plate and the other side of the pair of gear parts A pair of elevating members which are screwed with any one of them, a power transmission member for interconnecting and simultaneously rotating the other one of the pair of gear units respectively disposed on the pair of front legs, and one side of the power cutting member It is connected to the inclination control portion consisting of a rotary knob for rotating the power transmission member by the user; The inclination setting of the upper plate, by rotating the rotary knob in one direction or the other direction to rotate any one of the pair of gears respectively disposed inside the pair of front legs to transfer the power in the right direction to the remaining gears engaged thereto. It provides a desk having a top plate capable of tilt adjustment, characterized in that for lifting or lowering the pair of lifting members.

Accordingly, the load applied in the vertical direction when the load is applied downward to the own weight of the upper plate or the upper plate prevents the vertical load from being directly transmitted to the power transmission member by a pair of gears arranged to be perpendicular to each other. The inclination of the top plate can be prevented even without the locking device.

In addition, the horizontal frame is connected by a hinge axis to pivotally connected to a pair of hinges fixed to the lower end of the inclined portion, the horizontal frame has a long hole so that the hinge axis can move forward and backward corresponding to the inclination of the inclined portion of the upper plate Is formed.

Here, the inclination control unit may further include a pair of fixing blocks for rotatably fixing the pair of lifting members in a perpendicular direction.

In addition, the inclination control unit may further include a cover for rotatably supporting both ends of the power transmission unit passing through any one of the pair of gears of the fixed block on the pair of front legs.

The cover may be fixed to the upper and lower ends of the fixing block by forming a pair of support protrusions formed in a width corresponding to the height of the fixing block inward.

In addition, the pair of fixed blocks may be fixed inside the pair of front legs by a plurality of fixing bolts passing through the pair of front legs.

Preferably, the pair of gear portions is made of a helical gear.

Furthermore, the pair of horizontal frames may include a pair of rotatably disposed guide rollers that support both sides of the elevating member in a slidable manner, and thus, when adjusting the inclination of the top plate, It can support the descending member stably and guide the lifting / lowering.

(Example)

Hereinafter, a desk having a tiltable adjustable top plate according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic perspective view showing a desk having a tiltable top plate according to the present invention, FIG. 2 is a side view viewed from the direction A in FIG. 1, and FIG. 3 is a schematic cross-sectional view showing a portion B shown in FIG. 2.

First, the desk according to the present invention is a pair of horizontal frames (13a, 13b) arranged horizontally parallel to each other at a predetermined interval, as shown in Figure 1, the front and bottom of the pair of horizontal frames (13a, 13b) A pair of front legs 11a and 11b and a pair of rear legs 12a and 12b each having an upper end fixed thereto, and a pair of hinge portions 33 formed on both upper and rear sides of the pair of horizontal frames 13a and 13b, respectively. Has a top plate 20 hinged through.

The pair of front legs 11a and 11b and the pair of rear legs 12a and 12b are interconnected and fixed by connecting frames 14a and 14b, respectively.

In this case, as shown in FIG. 2, the pair of hinge parts 30 and 33 are respectively fixed to the front and rear lower surfaces thereof. The pair of front hinge portions 30 are hinged to one end of the pair of lifting members 48 described below by hinge shafts 31, respectively, and the pair of rear hinge portions 33 are hinge shafts 37. Hinges are coupled to the horizontal frame (13a, 13b) through ().

In the horizontal frames 13a and 13b coupled to the rear hinge part 30, a long hole 35 having a predetermined curvature so that the hinge shaft 37 moves forward and backward in correspondence to the inclination of the upper plate inclination part 23 is provided. Is formed.

That is, in order to set the inclination in the state in which the upper plate 20 is horizontal, when the tip of the upper plate 20 is raised to be inclined at a predetermined inclination by operating the inclination adjusting unit, the hinge shaft 37 opens the long hole 35. Accordingly, the predetermined distance is moved toward the horizontal portion 21 side, and the rear end of the upper plate 20 is moved forward by a predetermined distance, thereby allowing the upper plate 20 to be inclined.

Hereinafter, the configuration of the inclination control unit with reference to the accompanying drawings in detail as follows.

Figure 4 is a schematic perspective view showing the inclination control unit shown in Figure 3, Figure 5 is a cross-sectional view of the fixed block along the line CC shown in Figure 4, Figure 6 is a schematic perspective view showing a coupling relationship of the inclination control unit of the present invention, Figure 7 is 6 is a schematic cross-sectional view showing a state of supporting the fixing block of the cover shown in FIG. 6, FIG. 8 is a schematic cross-sectional view showing another embodiment of the cover shown in FIG. 7, and FIG. 9 is a schematic cross-sectional view taken along the DD line shown in FIG.

As shown in FIG. 3, the inclination control unit has the same inclination control structure inside the pair of front legs 11a and 11b, and in the following, the inside of one front leg 11a of the pair of front legs 11a and 11b. Only the installed tilt adjusting structure will be described.

In addition, as shown in Figure 5, the inclination control unit has a fixed block 43 of a substantially rectangular parallelepiped shape inside the front leg (11a), the fixed block 43 is inserted into the first and second penetrating direction perpendicular to each other The sides 43a and 43b and the first and second insertion holes 43a and 43b communicate with each other by the communication holes 43c.

First and second gears 44 and 46 are rotatably inserted into the first and second insertion holes 43a and 43b, respectively, and the first and second gears 44 and 46 are communicating holes ( Rotate in engagement with 43c). In this case, the first and second gears 44 and 46 are preferably formed of helical gears, and the gear teeth are preferably formed at approximately 45 °.

Furthermore, as shown in FIG. 5, the fixing block 43 forms fixing jaws 43d and 43e at one side of the first and second insertion holes 43a and 43b, respectively, so that the first and second gears 44 and 46 are formed. One side of can be fixed.

In addition, the power transmission member 45 for interconnecting the first gear 44 disposed on the pair of front legs 11a and 11b, respectively, is connected to the pair of front legs 11a and 11b. 14a) (see FIG. 6).

As shown in FIG. 4, the power transmission member 45 has coupling portions 45a fixed to the coupling holes 44a of the first gear 44 at both ends, respectively. Accordingly, when the power transmission member 45 is rotated through the rotary knob 41 to be described below, the first gears 44 respectively disposed on the pair of front legs 11a and 11b rotate at the same time, respectively. Power can be transmitted to the second gear 46 at the same time.

On the other hand, the pair of lifting members 48, one side of which is hinged to the lower end of the upper plate 20, the other side is screwed with the second gear 46 (see Figs. 2 and 3). The elevating member 48 is composed of a plate-shaped support piece 48a and a screw rod 48b extending in the longitudinal direction at one end of the support piece 48a.

The screw rod 48b is coupled to the fastening hole 46b of the second gear 46 as shown in FIG. 4, and an inner circumferential surface of the fastening hole 46b corresponds to a screw portion formed on the outer circumference of the screw rod 48b. Is formed. Accordingly, the second gear 46 is vertically raised or lowered according to one direction or reverse rotation of the second gear 46.

In addition, the rotary knob 41 is fixedly coupled to any one of both ends of the power transmission member 45, a plurality of protrusions are formed on the outer periphery of the rotary knob, the user to adjust the inclination of the top plate ( 41) When rotating in a gripped state, slippage is prevented and grip is improved.

Furthermore, as shown in FIG. 6, the fixed blocks 43 are supported on one side of the pair of front legs 11a and 11b to stably fix the fixed blocks 43 within the pair of front legs 11a and 11b. The cover 42 is coupled.

The cover 42 is provided with a pair of protrusions 42a that are inserted into the opening 65 of the front leg 11a and simultaneously wrap and support the fixing block 43 at the upper and lower ends as shown in FIG. 7. In addition, a through hole 42b through which the power transmission member 45 penetrates is formed at the center thereof to rotatably support both ends of the power transmission member 45. Therefore, the fixing member 43 is stably fixed at the correct position in the front legs (11a, 11b).

In addition, the cover 42 is detachably fixed to one side of the front legs (11a, 11b) by a plurality of fastening bolts (61a, 61b).

In this case, the cover 42, as shown in Figure 8, it is also possible to install the rotary knob 41 on one side of the pair of front legs (11a, 11b), in this case, by turning a pair of rotary knobs together Adjusting the desk is easier.

Meanwhile, as shown in FIG. 9, a pair of guide rollers 71a and 71b for supporting both sides of the elevating member 48 so as to be slidable inside the horizontal frame 13a are rotated by the rotation shafts 72a and 72b. Possibly arranged. Accordingly, the pair of lifting members 71a and 71b can be stably supported and the lifting / lowering guide can be performed without shaking.

Reference numeral 47 denotes a bearing, 51 and 53 denote through holes through which the elevating member passes, and 62a, 62b, 63a and 63b denote fastening holes.

Hereinafter, the tilt adjustment operation of the desk top plate according to the present invention configured as described above are as follows.

First, in order to adjust the inclination of the top plate 20, the rotary knob 41 is rotated in one direction. As the power transmission member 42 rotates in the same direction as the rotary knob 41 by the rotation of the rotary knob 41, a pair of first gears 44 fixed to both sides of the power transmission member 42 rotate. .

Accordingly, the pair of second gears 46 disposed in a state of being engaged with the pair of first gears 44 at right angles in the fixed block 43 are rotated in one direction, and at the same time, the second gears 46 are rotated. The screw rod 48b of the elevating member 48 coupled with the screw moves vertically upward to elevate the elevating member 48 fixed to both sides of the upper surface of the top plate 20 at the same time.

Accordingly, the inclination is set at a predetermined angle as the front end of the upper plate 20 is lifted and the rear end is hinged.

On the other hand, when the upper plate 20 is set to an initial state, that is, a horizontal state, when the rotary knob 41 is rotated in the reverse direction, the first and second gears 44 and 46 rotate in the reverse direction when lifting. Accordingly, the upper plate 20 is lowered and set in a horizontal state.

In the present invention described above, the vertical load is applied to the power transmission member by a pair of gears which are engaged with each other at right angles when the load applied to the vertical direction when the load is applied downward to the own weight or the upper plate of the upper plate. By preventing direct transmission, the inclination of the top plate can be prevented without a separate locking device.

Claims (8)

In a desk having a pair of front and rear legs hinged to a pair of horizontal frames, respectively, through a pair of hinges coupled to the lower surface of the rear end of the top plate so that the top plate is set to be inclined, A pair of gears rotatably fixed to the inner side of the pair of front legs and engaged with each other at right angles, and a pair of one side fixed to the lower end of the upper plate and the other side of which is screwed with any one of the pair of gears A power transmission member for interconnecting and simultaneously rotating the other one of a pair of elevating members, a pair of gear units disposed on the pair of front legs, and a power transmission member connected to one side of the power cutting member; It includes a tilt adjusting portion consisting of a rotary knob for rotating; The inclination setting of the upper plate, by rotating the rotary knob in one direction or the other direction to rotate any one of the pair of gears respectively disposed inside the pair of front legs to transfer the power in the right direction to the remaining gears engaged thereto. Desk having a tiltable adjustable top using a helical gear, characterized in that for lifting or lowering the pair of lifting members. According to claim 1, The horizontal frame is connected by a hinge axis to pivotally connected to a pair of hinges fixed to the bottom of the inclined portion, The desk having an adjustable top plate using a helical gear, characterized in that the long frame is formed in the horizontal frame so that the hinge axis is moved forward and backward corresponding to the inclination of the inclined portion of the top plate. According to claim 1, The inclination control unit Desk having a tiltable adjustable top plate using a helical gear, characterized in that further comprising a pair of fixing blocks for rotatably fixing the pair of lifting members in a perpendicular direction. The inclination using the helical gear according to claim 3, wherein the inclination control unit further includes a cover supporting upper and lower ends of the pair of fixing blocks to fix the pair of fixing blocks inside the pair of front legs. Desk with adjustable tops. The helical gear according to claim 4, wherein the inclination control unit further includes a cover for rotatably supporting both ends of the power transmission unit penetrating any one of the pair of gears of the fixed block on the pair of front legs. Desk with a tiltable adjustable top using. The desk having an adjustable top plate according to claim 5, wherein the pair of fixed blocks is fixed inside the pair of front legs by a plurality of fixing bolts passing through the pair of front legs. The desk having an adjustable top plate using a helical gear according to any one of claims 4 to 6, wherein the pair of gears is a helical gear. The tilt control using the helical gear according to claim 1, wherein the pair of horizontal frames includes a pair of guide rollers rotatably arranged to support both sides of the elevating member in a slidable manner. Desk with possible tops.

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