KR101619789B1

KR101619789B1 - Folding desk that can control angle of a desk board

Info

Publication number: KR101619789B1
Application number: KR1020150156372A
Authority: KR
Inventors: 채수민
Original assignee: 주식회사 오피스안건사
Priority date: 2015-11-09
Filing date: 2015-11-09
Publication date: 2016-05-11

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a folding desk in which an angle of a top plate is adjusted, and an object of the present invention is to provide a folding table capable of adjusting the angle of the top plate by folding the top plate by rotating the top plate with one hand .
The present invention relates to an upper plate; A folding control unit integrally connected to the upper plate base provided on the lower surface of the upper plate; And a leg fixing arm connected to the folding control unit by a fixing shaft and to which a desk leg is connected,
The folding control unit includes a coupling support which is integrally fixed to the upper plate support base, a latch gear which is axially coupled to the fixed shaft through engagement therewith, a detent which is engaged with the latch gear to restrict rotation of the latch gear, A leaf spring which is inserted between the springs and which applies an elastic force so that the detent is pressed in the direction of the latch gear; a stopper which is inserted and fixedly inserted into the linkage support, rotatably inserted into the latch gear, And a first and a second outer plates having iron insertion holes formed therein,
The detent is rotated by the first and second outer plates around the fixed shaft by the rotation of the upper plate so that the angle of the upper plate is adjusted by the repeated operation of the latch gear and the detent.

Description

Folding desk with adjustable angle of top panel {

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a folding desk in which an angle of an upper panel is adjusted, and a foldable desk capable of freely adjusting the angle of a top plate by rotation of the upper plate without operating a separate lever.

Generally, the desk is composed of a top board and a desk leg which supports the desk, and a fixed desk having a top board and a desk leg are integrally fixed is used for a student or a home or business desk,

Unlike ordinary household or business desks, lecture desks used in places such as lecture halls and auditoriums are required to be folded up to the top of the desk and stored in a separate storage area in order to refresh the arrangement of the desks according to the situation or to increase the space utilization. A folding desk configured to take out and rearrange the number of folding tables is widely used.

The conventional foldable desk is configured such that when the lever coupled to the spring is pulled, the upper plate is folded by the folding means which can be folded by rotating the upper plate by releasing the locking of the spring, or the elastic restoring force of the coil spring The shaft connected to the upper plate is lowered and rotated at a predetermined angle so that the upper plate can be folded.

However, the conventional folding type desk as described above has a problem that it requires a lot of force because the operating lever is simply pulled by hand to release the locking.

In addition, in the conventional folding type desk, most of the folding desks are one-handed to release the locking operation of the upper plate by the operation of the lever and then lift the upper plate with the other hand to rotate forward, The operation is very inconvenient.

In addition, even in the case of a folding desk in which folding or restoration of the top plate can be performed semi-automatically by using a mechanical force such as a restoring force of a spring, both hands must be used for folding the top plate stably without causing noise or breakage. There is a problem that the operation is inconvenient.

Particularly, since semi-automatic folding type desks are required to have many parts because of their complicated structure, it is not easy to move due to heavy weight of the entire desk, production costs such as parts cost and assembly cost are high, So that a lot of time is required for maintenance.

Registered Utility Model Registration No. 20-0450788 (Oct. 26, 2010) Published Patent Publication No. 10-2012-0140089 (2012.12.28) Public Utility Model Publication No. 20-2010-0006827 (July 6, 2010) Open Patent Publication No. 10-2011-0130041 (2011.12.05)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a foldable desk capable of adjusting the angle of a top plate by folding a top plate by a user with one hand,

The present invention relates to an upper plate; A folding control unit integrally connected to the upper plate base provided on the lower surface of the upper plate; And a leg fixing arm connected to the folding control unit by a fixing shaft and to which a desk leg is connected,

The folding control unit includes a coupling support which is integrally fixed to the upper plate support base, a latch gear which is axially coupled to the fixed shaft through engagement therewith, a detent which is engaged with the latch gear to restrict rotation of the latch gear, A leaf spring which is inserted between the springs and which applies an elastic force so that the detent is pressed in the direction of the latch gear; a stopper which is inserted and fixedly inserted into the linkage support, rotatably inserted into the latch gear, And a first and a second outer plates having iron insertion holes formed therein,

The detent is rotated by the first and second outer plates around the fixed shaft by the rotation of the upper plate so that the angle of the upper plate is adjusted by the repeated operation of the latch gear and the detent.

According to the present invention, the upper plate is folded by the engagement operation of the detent and the latch gear, so that the user can easily fold the upper plate with only one hand without a separate lever operation.

Since the desk top plate is folded, it is possible to efficiently store a plurality of desks when not in use, and the space can be efficiently used.

According to the present invention, the angle of the upper plate is adjusted by the engagement operation of the detent and the latch gear, so that the entire structure is simple, the structure is extremely rigid, and the assembling property and the maintenance property are excellent.

In the present invention, the inclination angle of the upper plate is adjusted, and in addition to the basic desk function, it is possible to use it for various purposes such as a drawing board, a drawing board, or a book reading board, It is possible to reduce the purchase cost.

The present invention has many effects such as design, music, art, reading and so on so that a single desk can have a variety of functions, so that it is possible to easily perform the theoretical and practical lessons in one place without moving the seat .

1 is an illustration showing a configuration according to the present invention;
FIG. 2 is an exemplary view showing a connection relationship of the folding controller according to the present invention. FIG.
3 is an exemplary diagram showing a configuration of a latch gear according to the present invention.
4 is an exemplary view showing the configuration of a detent according to the present invention;
5 is an exemplary view showing the construction of the first and second outside sheathings according to the present invention
6 is an exemplary view showing an operating state of the folding controller according to the present invention.
7 is an exemplary view showing an angle adjustment and a folding state of the upper plate according to FIG.

FIG. 1 is an exemplary view showing a configuration according to the present invention, and FIG. 2 is an exemplary view showing a connection relationship of a folding control unit according to the present invention. A folding control unit 200 integrally connected to the upper plate support base 120 installed on the lower surface 110 of the upper plate; And a leg fixing arm 500 coupled to the folding control part 200 by a fixing shaft 300 and connected to the desk leg 400,

The folding control unit 200 includes a connection support 210 fixed to the upper plate support base 120, a latch gear 220 through which the fixing shaft 300 is inserted and axially coupled, a latch gear 220, And a pawl 230 inserted between the connection support 210 and the pawl 230 to be engaged with the latch gear 220 in the direction of the latch gear 220 A detent plate 240 inserted and fixed to the latch gear 220 so as to be rotatable and inserted and supported by the detent 230, And first and second outer plates 250 and 260 having insertion holes 251 and 261 formed therein,

The detent 230 is rotated by the first and second outer plates 250 and 260 about the fixed shaft by the rotation of the upper plate 100 so that the engagement and retraction of the latch gear 220 and the detent 230 And the angle of the upper plate 100 is adjusted by the operation.

Hereinafter, in order to facilitate understanding of the present invention, the upper and lower sides of the present invention are described with reference to the case where the upper plate maintains the horizontal state, and the upper and lower sides do not necessarily refer to the upper or lower side.

The upper plate 100 includes a top plate support base 120 to which a folding control unit 200 is connected to the lower surface 110. The top plate support base 120 is installed on both sides of the top plate.

A plurality of top plate supporting subbases 140 may be further provided on the lower surface 100 of the upper plate 100 to support the upper plate 100 according to the length of the upper plate 100.

A magnetic part 130 for fixing the position of the upper plate is further provided at one side of the upper plate base 120. When the upper plate is folded, And is attached to a fixing plate 410 protruding from one side of a leg or a desk leg to fix the folding position of the top plate 100. [

The folding control unit 200 controls the angle of the upper plate and also functions to fold the upper plate. That is, the folding control unit 200 includes a connection support 210, a latch gear 220, a detent 230, The spring 250 and the first and second outer plates 250 and 260 are formed so that the angle of the upper plate 100 is adjusted by the engagement operation of the latch gear 220 and the detent 230, So as to be folded in the forward direction.

The connection support 210 fixes the position of the folding control unit 200 to the upper plate support base 120 of the upper plate and is fixed to the upper plate support base 120. The lower plate supports the plate spring 240 And the first and second support ends 211 and 212 are protruded from each other with a predetermined gap therebetween.

That is, the connection support 210 has first and second support ends 211 and 212 protruded from its lower side, and a concave groove 213 is formed between the first and second support ends 211 and 212 to have a predetermined depth in the upward direction. And the first supporting end 211 is protruded to be positioned below the second supporting end 212.

The first and second supporting ends 211 and 212 support both ends of the leaf spring 240 to transmit the elastic force (restoring force) of the leaf spring 240 to the detent 230. The concave groove 213 has a detent (Deforming force) of the leaf spring 240 and the moving force of the detent 230 when the leaf spring 240 is pressed by the leaf spring 230.

The connection support 210 is integrally fixed to the first and second outer plates 250 and 260 so as to be positioned between the first and second outer plates 250 and 260.

In addition, the connection support 210 may be an independent component in the folding control unit, or may be formed integrally with the top plate support base. That is, the connecting supporter may be formed integrally with the upper plate base, and the first and second outer plates 250 and 260 may be fixedly installed.

3, the latch gear 220 includes a gear body 225 having a shaft coupling hole 224 to which the fixed shaft 300 is axially coupled, a gear body 225 located on the upper side of the gear body, And the first and second guides 221 and 222 protruded from the gear body 225 so as to be positioned at both ends of the coupling gear 223 .

The latch gear 220 protrudes from both sides of the gear main body 225 and is inserted into the first and second outer shells 250 and 260. The shaft coupling hole 224 is formed in the rotation shaft projection 226 The gear body 225 is formed so as to pass through the gear body 225. [

The latch gear 220 configured as described above is axially coupled to the fixed shaft 300 and is not rotated together with the upper plate 100 when the folding control unit 200 is rotated according to the rotation of the upper plate 100, 300 to remain fixed.

The detent 230 is repeatedly engaged with the latch gear 220 to adjust the inclination angle of the top plate 100 by fixing the position of the folding control unit 200.

4, the detent 230 includes a detent body 235 having an engaging gear 233 engaged with the engaging gear 223 of the latch gear, First and second support protrusions 231 and 232 formed on the detent body 235 so as to be positioned on the detent body 235 and an upper contact piece 236 formed on the detent body 235 to support the leaf spring 240 in contact therewith .

As described above, the detent 230 is provided with an engaging gear 233 on the lower side with respect to the detent body 235, and an upper contact belt 236 on the upper side corresponding to the engaging gear 233 And the first and second support protrusions 231 and 232 are formed at both ends of the engagement gear 233 so as to be positioned between the engagement gear 233 and the upper contact piece 236.

The detent 230 is further formed at one side of the detent body 235 with an end contact band 234 protruding from the second support protrusion 232, 2 is formed at one end of the detent main body 235 so as to have a step with the support tab 232 and the plate spring 240 to increase the contact area.

The plate spring 240 is inserted between the first and second outer plates 250 and 260 so that both ends of the plate spring 240 are supported by the first and second support ends 211 and 212 of the connection support, and the detent 230 is coupled to the latch gear 220 (Pressurized).

That is, the plate spring 240 is installed between the first and second outer plates 250 and 260 so as to be held in contact with the first and second support ends 211 and 212 and the detent 230, and the plate spring 240, Are supported by the first and second support ends 211 and 212 while maintaining a tilted state.

The first and second outside sheathing plates 250 and 260 are coupled to each other to be positioned between the first and second outside sheathing plates 250 and 260 so that the connecting support 210, the leaf spring 240, Respectively.

The first and second outer shells 250 and 260 have the same construction and are integrally connected to each other by bolting, riveting, welding or the like, and the detent 230 is inserted and operated as shown in FIG. And rotation holes 252 and 262 into which one side of the latch gear 220, that is, the rotation axis projection 226, is inserted are formed.

The detent insertion holes 251 and 261 are provided with operation holes 253 and 263 in which the detent 230 is inserted and positioned such that the detent 230 and the latch gear 220 are engaged with each other when the upper plate is rotated for folding 266 for accommodating the pawl 230 when the upper plate is rotated for returning to the home position (horizontal state), and having a stepped portion formed by the operation holes 253, 263 and the pressing contact ends 255, The actuating holes 253 and 263 and the accommodating holes 254 and 264 are communicated with each other so as to have oblique contact ends 256 and 266 formed as tapered inclined surfaces so as to extend in the direction of the accommodating holes 254 and 264 on the upper side.

The lower ends of the detent insertion holes 251 and 261 are formed to have stepped portions by the pressing contact ends 255 and 265 so as to be divided into the operation holes 253 and 263 and the accommodation holes 254 and 264. The operation holes 253 and 263, (252, 265) are formed at the upper ends of the openings (254, 264) so as to be inclined upward in the direction from the operation hole to the storage hole.

At this time, the height of the step, that is, the height h1 of the pressing contact end is formed to be larger than the height h2 of the gear formed on the engaging gear 223 of the latch gear, When the first and second outer sheaths are rotated (folded), the pressing contact ends 255 and 265 are pressed against the second supporting step 232 of the detent, so that the detent 230 is moved in the same direction as the first and second outer sheathing The detent 230 compresses the leaf spring 240 and is only moved within the operation holes 253 and 263 even if the engaging gear 233 moves out of the engaging gear 223 of the latch gear. (254, 264).

That is, when the upper plate is folded, the detent 230 of the detent engages with the engaging gear 223 of the latch gear in the operating holes 253 and 263 by the elastic force of the leaf spring 240 So that the angle of the upper plate 100 is adjusted in a multistage manner by the repetitive operation of engaging the detent and the latch gear.

In addition, the detent insertion holes 251 and 261 are formed with inclined contact ends 256 and 266 for contacting the upper contact piece 236 of the detent. During folding of the upper plate (rotation of the upper plate in the forward direction) The first and second outside sheathing plates 250 and 260 can not be rotated in a reverse direction (the upper plate is moved backward).

That is, when the first and second outside sheathing plates 250 and 260 are rotated in the reverse direction (the upper plate is in the rearward direction) in a state where the engaging gear 233 of the detent is engaged with the engaging gear 223 of the latch gear The inclined contact ends 256 and 266 of the iron insertion hole press the upper contact piece 236 of the detent and by this pressing force the engaging gear 233 of the detent is more firmly attached to the engaging gear 223 of the latch gear So that the first and second outside sheathing plates 250 and 260 are not rotated in the reverse direction.

The leg fixing arm 500 is integrally formed with the desk leg 400 and is connected to the latch gear 220 of the folding control unit by the fixing shaft 300.

The folding control unit 200 and the leg fixing arm 500 are connected to the upper plate supporting base located at both lower sides of the upper plate and the leg fixing arms 500 located on both sides are connected to the supporting pipe 510 As shown in Fig.

The support pipe 510 supports the desk leg 400 by maintaining a space between the leg fixing arms 500. The both ends of the support pipe 510 are integrally connected to the leg fixing arm by bolts or welding, Spacing maintenance and desk reinforcement function.

When the load is generated on the upper part of the upper plate, the lower end of the upper plate supporting assisting base is connected to the lower part of the upper part of the support pipe And has a function of supporting the upper plate from the load by being abutted on the outer circumferential surface.

In addition, the two folding control portions 200 and the leg-fixing arms 500 located at both lower sides of the upper plate may be connected to each other by a single fixing shaft, or may be connected by respective fixing shafts, When connected by a shaft, the fixed shaft is installed through the support pipe, and both ends of the fixed shaft are inserted into the leg fixing arm and the folding adjusting portion located on both sides.

FIG. 6 is an exemplary view showing the operating state of the folding control unit according to the present invention, and FIG. 7 is an exemplary view showing the angle adjustment and folding state of the upper plate according to FIG. The first and second outer sheaths of the folding and regulating portion are integrally formed with the upper plate integrally with the upper plate in the forward direction (Forward direction), and the detent located in the detent insertion hole by rotation of the first and second outside sheathing is repeatedly engaged with the engagement gear of the latch gear by the elastic force of the leaf spring, 1,2 It is rotated together with outer shell. By repeating the engaging and repetitive operation of the detent and the latch gear, the angle of the upper plate is adjusted while the number of stages of the upper plate is adjusted.

At this time, the angle of the upper plate is adjusted within the range of the engagement gear of the latch gear in which the detent and the latch gear are engaged. That is, when the engaging gear is engaged with one end of the engaging gear, the upper plate is kept parallel. When the engaging gear is engaged with the other end of the engaging gear, the upper plate is folded to be nearly vertical.

When the upper plate is in the folded state, the first contact of the detent is brought into contact with the first guide of the latch gear, so that the detent presses the plate spring into the receiving hole in the operating hole of the detent insertion hole, The detent, which is moved into the storage hole, is held in contact with one side of the storage hole by the elastic force of the leaf spring, and is held in the storage hole.

At this time, when the end contact ring is formed on the detent, not only the end contact ring is held in contact with the one end of the receiving hole when the detent is seated in the receiving hole of the detent, Even if an excessive force is transmitted to the first support jaw, the detent is stably housed in the storage hole.

In addition, the uppermost part of the upper rotating plate is attached to one side of the desk leg or the fixing plate, and the upper plate is kept folded.

When the upper plate is to be returned to the original position (horizontal position) again, if the folded upper plate is held and rotated downward toward the rear direction B, the first and second The outer plate and the detent are rotated in the backward direction (reverse direction) and the upper plate is rotated downward. At this time, since the pawl of the folding control portion is housed in the storage holes of the first and second outside sheathing plates, no interference occurs between the meshing gear of the detent and the engagement gear of the latch gear when the first and second external sheaths rotate.

When the upper plate reaches the horizontal position, the second contact of the detent comes into contact with the second guide of the latch gear, so that the detent in the storage hole is pushed into the operation hole in the storage hole and the detent, The engagement gear is engaged with the engagement gear of the latch gear, and the position of the detent is fixed, so that the upper plate remains in a horizontal state.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

(100): upper plate (110): lower surface
(120): upper plate supporting base (130): magnetic part
(140): fixing plate (200): folding control unit
(210): connection support (211): first support end
(212): second supporting end (213): concave groove
(220): Latch gear (221): First guide
(222): second guide (223): coupling gear
(224): shaft coupling hole (225): gear body
(226): rotation axis projection (230): detent
(231): first support jaw (232): second support jaw
(233): engaging gear (234): end contact
(235): detent body (236): upper contact piece
(240): leaf spring (250): first outside plate
(260): second outer plate (251, 261): detent insert hole
(252, 262): rotation hole (253, 263): operation hole
(254, 264): storage hole (255, 265): pressure contact terminal
(256, 266): inclined contact stage (300): fixed shaft
(400): desk leg (410): fixed plate
(500): leg fixing arm (510): support pipe

Claims

Top plate;
A folding control unit integrally connected to the upper plate base provided on the lower surface of the upper plate;
And a leg fixing arm connected to the folding control unit by a fixing shaft and to which a desk leg is connected,
The folding control unit includes a coupling support which is integrally fixed to the upper plate support base, a latch gear which is axially coupled to the fixed shaft through engagement therewith, a detent which is engaged with the latch gear to restrict rotation of the latch gear, A leaf spring which is inserted between the springs and which applies an elastic force so that the detent is pressed in the direction of the latch gear; a stopper which is inserted and fixedly inserted into the linkage support, rotatably inserted into the latch gear, And a first and a second outer plates having iron insertion holes formed therein,
Wherein the angle of the upper plate is adjusted by the rotation of the upper plate and the upper plate is folded without operating a separate lever.

The method of claim 1,
The latch gear includes a gear main body having a shaft coupling hole into which a fixed shaft is axially coupled, a coupling gear located on the upper side of the gear main body and engaged with the detent, First and second guides, and a rotation axis projection protruding from both side surfaces of the gear body and rotatably engaged with the first and second outside plates,
The detent includes a detent body formed with an engaging gear engaged with a coupling gear of the latch gear, first and second support protrusions formed on the detent body so as to be positioned at both ends of the engaging gear, And an upper contact band formed on the upper side of the main body.

Claim 1
The first and second outer shells have detent insertion holes into which a detent is inserted to be actuated and supported, and rotary holes into which one side of the latch gear is inserted,
The detent insertion hole has an operation hole in which the detent is inserted and positioned so that the detent and the engagement of the latch gear are repeated when the upper plate is rotated for folding, And a receiving hole for receiving the detent when the upper plate is rotated to return to the home position,
Wherein the operation hole and the accommodation hole are communicated with each other so as to have an inclined contact end formed as a tapered inclined surface so as to extend in the storage hole direction on the upper side.

delete

The method of claim 1,
The magnetic part is attached to a fixing plate attached to protrude from one side of a desk leg or a desk leg when the upper plate is folded, so that the folding position of the top plate is fixed. Foldable desk with adjustable top angle.