KR101637173B1

KR101637173B1 - Height adjustable table with electrical driving

Info

Publication number: KR101637173B1
Application number: KR1020150139703A
Authority: KR
Inventors: 최주용
Original assignee: 주식회사 에스 피 지
Priority date: 2015-10-05
Filing date: 2015-10-05
Publication date: 2016-07-08

Abstract

An electrically-driven height adjustable table is disclosed. The electrically-driven height adjustable table according to the present invention comprises: a table upper plate; a height adjustable member mounted to a lower surface of an upper plate of a table to vertically move; a vertical frame coupled to the height adjustable member through an assembling groove accommodating a lower end of the height adjustable member and vertically supporting the upper plate of the table; an assembling bar including at least two height adjustable members and at least two vertical frames and connecting between at least two vertical frames; a motor assembly positioned on one side of the assembling bar and transferring driving force of the motor to a rotation shaft positioned at an inner hole of the assembling bar; a worm wheel provided at an end of the rotation shaft; a worm positioned at a lower end of the height adjustable member and vertically moving the at least two height adjustable members by mutually being engaged to the worm wheel in accordance with the rotation of the rotation shaft; and a brake washer maintaining the height of the upper plate of the table when the motor stops by being in contact with one side surface of a rotating body positioned at a rear end of the motor.

Description

{HEIGHT ADJUSTABLE TABLE WITH ELECTRIC DRIVING}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a height adjustment table of a motorized type, and more particularly, to a height adjustment table of a motorized type for height adjustment of a table used in a home, an office, or a work site.

Various tables used for a desk in a home, a school, an office, etc., and a work table in a work site are usually provided with a table top plate having a rectangular flat plate shape. Vertical support members having a predetermined height are provided at both lower ends of the table top plate So that the table top plate is fixedly installed so as to be positioned at a position having a predetermined height from the ground.

In recent years, a table having a structure capable of arbitrarily adjusting the height of the table top plate so as not to inconvenience when using the height of the table top plate according to the user's key, body shape, use purpose, etc. in various tables as described above .

However, there is a significant difference in the quality of the height-adjustable tables. For example, while the motor drive for height adjustment of the table is stopped, the table top plate maintains the adjusted height according to the load applied to the table top plate. On the other hand, the table top plate can not withstand the load applied to the table top plate, There are also products where the top plate gradually flows down.

The reason for the difference in the quality of the height-adjustable table product is that a high-quality table product including a separate structural braking device and a plurality of motors for maintaining the adjusted height of the table, and a separate structural braking device And the gap between low-end table products that do not have many motors.

Therefore, in order to provide the height adjustment table for meeting the needs of the consumer, the high-performance table including the above-described separate structural braking device and the plurality of motors must be constructed. Therefore, .

In order to make the height adjustment table of electric type more general, a height adjustment table of a motorized type which is more inexpensive and superior in quality is needed.

Korean Patent Publication No. 1493235 (Feb.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a braking system for a vehicle, which does not have a separate braking device for maintaining the height of the table- A height adjustment table of a motorized type in which a brake structure is provided in a motor assembly performing a height adjustment function of a table top plate.

The objects of the present invention are not limited to the above-mentioned problems, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a height adjusting table including a table top plate, a height adjusting member mounted on a bottom surface of the table top plate and moved in a vertical direction, An assembling bar coupled to the height adjusting member through the groove to vertically support the table top plate, at least two each of the height adjusting member and the vertical frame, and connecting at least two vertical frames, A worm wheel disposed at an end of the rotary shaft, and a motor disposed at a lower end of each of the height adjustment members to rotate the rotation shaft, The worm wheel is driven to mesh with the worm wheel so that the at least two height adjusting members are moved up and down Contact with the entire one side of Korea located at the rear end of the worm and the motor for moving the position facing the brake comprises a washer to keep the height of the table top board at the time of the motor is stopped.

The brake washer may be composed of at least one.

The number of the at least one brake washer can be adjusted according to an area of contact with the rotating body.

The motor assembly may include a motor rear end opening for receiving the brake washer and a cover for pressing the brake washer against the rotating body.

Wherein the motor assembly includes a motor rear end opening for stepping the at least one brake washer and a plurality of brake washers for pressing the at least one brake washer against each corresponding position of the rotating body when the brake washer is configured with at least one Cover.

Therefore, in the present invention, there is no separate brake device for maintaining the adjusted height of the table top plate against the load of the table top plate, and a brake structure capable of replacing the brake structure is provided in the motor assembly performing the height adjustment function of the table top plate By providing a height adjustment table of a motorized type, it is possible to provide a height adjustment table of a motorized type which is more inexpensive and superior in quality.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a table according to an embodiment of the present invention.
Fig. 2 is a front view showing a state in which the table of Fig. 1 is height-adjusted. Fig.
Fig. 3 is a side view showing the motor assembly of Fig. 1 as one embodiment.
4 is a front view showing the motor assembly of Fig.
Figure 5 is a rear view of the motor assembly of Figure 3;
6 is a cross-sectional view showing the internal structure of the 'K' region of FIG. 3 as an embodiment.
7 is a cross-sectional view showing another embodiment of the internal structure of the 'K' region in FIG.
FIG. 8 is an internal structural view showing the internal structure of the 'A' region of FIG. 2. FIG.
FIG. 9 is an internal structural view showing the internal structure of the 'B' region of FIG. 2. FIG.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Further, the embodiments described herein will be described with reference to cross-sectional views and / or schematic drawings that are ideal illustrations of the present invention. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. In addition, in the drawings of the present invention, each component may be somewhat enlarged or reduced in view of convenience of explanation.

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

1 is a perspective view of a table according to an embodiment of the present invention.

As shown in FIG. 1, the height adjustment table 100 of the electric type has a brake structure for maintaining the adjusted height of the table top plate 110 in the motor assembly 150 to withstand the load of the table top plate 110 .

The height adjustment table 100 of the electric type can adjust the height of the table top plate 110 stably even if the height of the table top plate 110 is adjusted through the driving force generated from the single motor 151-1 A height adjustment structure is provided.

Specifically, the height adjustment table 100 of the electric type includes a table top plate 110, a height adjustment member 121 mounted on the lower surface of the table top plate 110 and moved in the vertical direction, A vertical frame 122 vertically supporting the table top plate 110, a height adjusting member 121 and a vertical frame 122, which are coupled with the height adjusting member 121 through an assembly groove for accommodating the table top plate 110, The assembling bar 140 is disposed at one side of the assembly bar 140 to transmit the driving force of the motor 151-1 to the rotating shaft 141 located in the inner hole of the assembly bar 140 A worm wheel 142 disposed at an end of the rotary shaft 141 and a worm wheel 142 disposed at a lower end of each of the height adjustment members 121, (Not shown) to move in at least two of the height adjusting members 121 in the vertical direction The key contacts the one side of the worm 121-1 and the rotating body 151-5 located at the rear end of the motor 151-1 so that the height of the table top plate 110 when the motor 151-1 is stopped And a brake washer (200) for holding the brake washer (200).

Here, the driving of the motor assembly 150 depends on user input. That is, the height adjustment table 100 of the transmission type described above includes the table top plate 110, the height adjustment member 121, the vertical frame 122, the assembly bar 140, the motor assembly 150, the worm wheel 142 ), The worm 121-1, and the brake washer 200, as well as a controller for user input of height adjustment as an imperative essential configuration.

The control unit may be a switch provided at one side of the motor assembly 150 so that the user can adjust the rotation direction of the motor 151-1. That is, the height of the table top plate 110 can be adjusted according to the time during which the user inputs the switching input to select the rotation direction of the motor 151-1 and then maintains the input switching state.

For example, when the user selects the rotation direction of the motor 151-1 as 'clockwise' and maintains the switching input state of the selected 'clockwise' for '5 seconds', the table top plate 110 ) Can be moved 3 cm in the " up " direction.

Conversely, when the user selects the rotation direction of the motor 151-1 as the 'counterclockwise direction' and maintains the selected 'counterclockwise' switching input state for '3 seconds', the table top plate 110 ) Can be moved 2 cm in the " lower " direction.

The control unit may be configured as a separate control pad. According to the menu of the configured control pad, the user can more easily set the movement direction and the movement width of the table top plate 110.

Fig. 2 is a front view showing a state in which the table of Fig. 1 is height-adjusted. Fig.

As shown in FIG. 2, the table top plate 110 is moved upward or downward according to the driving force and the driving direction of the motor assembly 150.

Fig. 3 is a side view showing the motor assembly of Fig. 1 as one embodiment, Fig. 4 is a front view showing the motor assembly of Fig. 3, and Fig. 5 is a rear view showing the motor assembly of Fig.

3 and 4, the motor assembly 151 rotates the driving force of the single motor 151-1 to the rotating shaft 141 located in the inner hole of the single motor 151-1 and the assembly bar 140 And a gear box 151-2 for transmitting the torque.

Here, the output shaft of the gear box 151-2 is preferably formed on an axis on which the rotary shaft 141 located in the inner hole of the assembly bar 140 is placed.

In addition, the output shaft of the gear box 151-2 is formed as a through-hole, and the rotation shaft 141 is coupled to the output shaft of the gear box 151-2 through a threaded connection.

Alternatively, when the output shaft of the gear box 151-2 is divided into two parts on the axis on which the rotary shaft 141 located in the inner hole of the assembly bar 140 is placed, the rotary shaft 141 It is preferable to be configured to be divided into two. At this time, the motor assembly 151 is positioned above the center of the assembly bar 140, and the rotary shafts 141 are connected to the output shafts of the gear box 151-2 of the motor assembly 151.

The 'K' region in FIG. 3 may be a region where the brake structure for maintaining the height of the table top plate 110 is located.

3 is a rear end of the motor 151-1 and a rotating body 151-1 including the driving shaft 151-3 of the motor 151-1 is provided in the rear end of the motor 151-1. There is also a brake washer 200 that abuts against one side of the rotating body 151-5 and maintains the height of the table top plate 110 when the motor 151-1 is stopped.

5, the brake washer 200 existing inside the rear end of the motor 151-1 described above opens the cover 151-4 at a position facing the rear end inner side of the motor 151-1 , The inside of the rear end of the motor 151-1, or may be replaced with another brake washer.

The cover 151-4 may be fixed or opened through a bolt connection with the outer surface of the rear end of the motor 151-1 or may be coupled with the outer surface of the rear end of the motor 151-1 by another coupling method Do.

6 is a cross-sectional view showing the internal structure of the 'K' region of FIG. 3 as an embodiment.

As shown in FIG. 6, the internal structure of the 'K' portion of FIG. 3 corresponds to a braking structure for maintaining the height of the table top plate 110 controlled in the motor assembly 151.

That is, the braking structure of the motor assembly 151 includes a motor rear end opening (not shown) for receiving the brake washer 200 and a cover 151 (not shown) for pressing the brake washer 200 against the rotating body 151-5 -4).

The motor rear end opening (not shown) is a space for accommodating the brake washer 200 and the cover 151-4 which engages with the brake washer 200. The motor rear end opening is a position for rotating the rotating body 151-5 to be braked, The size and structure of the cover 200, and the size and structure of the cover 151-4.

6, a plurality of brake washers 200 may be provided as shown in FIG. 7, although a single brake washer 200 is shown in FIG.

7 is a cross-sectional view showing another embodiment of the internal structure of the 'K' region in FIG.

Referring to FIG. 7, there are two brake washers that can be configured as a plurality of brake washers. That is, the braking structure of the motor assembly 151 in this case includes a motor rear end opening (not shown) for gradually accommodating the first brake washer 310 and the second brake washer 320, and a first brake washer 310 And a cover 151-4 for pressing the second brake washer 320 against each corresponding position of the rotating body 151-5.

The motor rear end opening (not shown) is a space for accommodating the first brake washer 310, the second brake washer 320, and the cover 151-4 which engages with the respective brake washers 310 and 320, The size and structure of the first brake washer 310, the size and structure of the second brake washer 320, and the size and structure of the cover 151-4, which correspond to the positions of the rotating body 151-5 to be braked, the size and structure of the first brake washer 310, Shape.

When the load applied to the table top plate 110 is smaller than the fixing force of the first brake washer 310 in a state in which the first brake washer 310 is mounted, the first brake washer 310 is attached to the rear end opening (not shown) -4) may be combined with each other.

Alternatively, if the load applied to the table top plate 110 is greater than the fixing force of the first brake washer 310 in a state where the first brake washer 310 is mounted, A braking structure for combining the cover 151-4 with the brake washer 310 as well as the second brake washer 320 may be additionally provided.

Here, the first brake washer 310 has a structure for forming an inner circle, and the second brake washer 320 has a structure for forming an outer circle. That is, the second brake washer 320 has a larger radius than the first brake washer 310, and an area of contact with the rotating body 151-5 is wider than that of the first brake washer 310. For this reason, the second brake washer 320 becomes a constituent that can cause a greater frictional force with respect to the rotating body 151-5 as compared with the first brake washer 310. [

Therefore, when the fixing force for maintaining the height of the table top plate 110 through the first brake washer 310 is somewhat insufficient, the first brake washer 310 is removed from the motor rear end opening (not shown), and then the second brake washer 320) is attached to the rear end opening (not shown) of the motor, it is possible to construct a breaking structure having an optimal clamping force.

The number of the at least one brake washer can be adjusted according to the area of contact with the rotating body 151-5. It is preferable that the number of brake washers is adjusted in consideration of the size of the load applied to the table top plate 110 and the driving force of the motor 151-1.

FIG. 8 is an internal structural view showing the internal structure of the 'A' region of FIG. 2. FIG.

As shown in FIG. 8, the 'A' portion of FIG. 2 shows a concrete connection structure of the rotation shaft 141 and the height adjusting member 121.

A worm wheel 142 is formed at both ends of the rotating shaft 141 and a worm 121-1 formed at the lower end of the height adjusting member 121 in a screw shape. That is, the rotating shaft 141 and the height adjusting member 121 are connected through the worm 121-1 gear structure that is driven by the worm wheel 142 and the worm 121-1.

The rotation shaft 141 rotates based on the driving force transmitted from the motor assembly 151 and transmits the rotational force to the worm wheel 142 located at the end of the rotation shaft 141. The worm 121-1 of the height adjusting member 121 engaged with the worm wheel 142 operated by this rotational force is driven together.

Here, the driving operation of the worm 121-1 of the height adjusting member 121 causes the screw movement as the worm wheel 142 of the rotating shaft 141 rotates, and eventually the worm 121-1 of the height adjusting member 121 The height adjusting member 121 is moved in the " up " direction or the " down "

FIG. 9 is an internal structural view showing the internal structure of the 'B' region of FIG. 2. FIG.

As shown in FIG. 9, the 'B' portion of FIG. 2 also shows a specific connection structure of the rotation shaft 141 and the height adjusting member 121, as described with reference to the 'A' And has the same structure as the 'A' site structure of FIG. 2 described above.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

Further, the present invention is not equipped with a separate brake device for maintaining the adjusted height of the table top plate against the load of the table top plate, and a brake structure capable of replacing the brake structure is provided in the motor assembly performing the height adjustment function of the table top plate The present invention is an invention that is industrially applicable because it is intended to provide a height adjustment table of a motorized type and is not only commercially available or operable but is practically and practically possible.

100: Table 110: Table top plate
120: leg portion 121: height adjusting member
121-1: Worm 122: Vertical frame
140: assembly bar 141: rotating shaft
142: Worm wheel 150, 151: Motor assembly
151-1: Motor 151-2: Gearbox
151-3: drive shaft 151-4: cover
151-5: Rotor 200: Brake washer

Claims

In the height adjustment table of the electric type,
Table top plate;
A height adjusting member mounted on a lower surface of the table top plate and moved in a vertical direction;
A vertical frame coupled to the height adjusting member through an assembly groove for receiving a lower end of the height adjusting member to vertically support the table top plate;
An assembling bar having at least two height adjusting members and at least two vertical frames and connecting at least two vertical frames;
A motor assembly positioned at one side of the assembling bar to transmit a driving force of the motor to a rotating shaft located in an inner hole of the assembling bar;
A worm wheel configured at an end of the rotating shaft;
A worm positioned at a lower end of each height adjusting member and driving the at least two height adjusting members to move in the vertical direction by engaging with the worm wheel in accordance with rotation of the rotating shaft; And
A motor driving shaft and a rotating body disposed at a rear end of the motor assembly are fixedly connected to one side of the rotating body so as to be in contact with one side of the rotating body when the motor is turned on and when the motor is turned off, Height adjustable table with brake washers.

The method according to claim 1,
Wherein the brake washer comprises at least one.

3. The method of claim 2,
Wherein the at least one brake washer is adjusted in the number of mounting portions according to an area contacting the rotating body.

The method according to claim 1,
The motor assembly includes:
A motor rear end opening for receiving the brake washer; And
And a cover for pressing the brake washer so as to abut against the rotating body.

5. The method of claim 4,
The motor assembly includes:
A motor rear end opening for gradually accommodating the at least one brake washer when the brake washer is configured as at least one; And
And a cover that presses the at least one brake washer against each corresponding position of the rotating body.