KR20170034029A

KR20170034029A - Support leg folding apparatus

Info

Publication number: KR20170034029A
Application number: KR1020150132186A
Authority: KR
Inventors: 손재우
Original assignee: 손재우
Priority date: 2015-09-18
Filing date: 2015-09-18
Publication date: 2017-03-28
Also published as: KR101805797B1

Abstract

The present invention relates to a support leg folding apparatus and, more specifically, relates to a support leg folding apparatus, which enables a support leg to be stably erected without a connection member exposed to the outside in a state in which the support leg is erected to improve convenience and stability in use. According to the present invention, the support leg folding apparatus comprises: a support bracket; an operating bracket; a first hinge member; a second hinge member; and an elastic member.

Description

{SUPPORT LEG FOLDING APPARATUS}

The present invention relates to a footrest folding apparatus, and more particularly, to a footrest folding apparatus which is capable of stably maintaining an upright state of a foot leg without providing a connecting member that is exposed to the outside in an upright state of the foot leg, The present invention relates to a footrest folding apparatus capable of improving safety and improving appearance and merchandise.

Generally, the table is provided with a foot leg folding device so that the foot leg can be folded or unfolded as needed on the lower part of the upper plate.

For example, Korean Utility Model Laid-Open No. 20-2008-0003634 discloses a structure in which straight-type pedestal bridges 13 and 23 are formed on the lower sides of the first upper plate 10 and the second upper plate 20, Is provided so as to be folded about the hinge pins 11a and 21a of the outer pivotal support means 11 and 21 and the center of the hinge pins 12a and 22a of the inner pivotal support means 12 and 22 A folding structure of a folding table in which X-shaped pedestal legs 30 (31) are folded forward and rearward, respectively, so that a pair of upper plates can be folded or unfolded.

The folding table is so constructed that the central portion of the support bars 14 and 24 and the lower portion of the upper plate are supported by the folding belts 15 and 25 so as to withstand the loads acting on the upper plate.

However, the above-mentioned conventional folding table has a structure in which the support legs 13 and 23 are folded about the hinge pins 11a and 21a of the outer rotation support means 11 and 21 so that a large load or an impact force is applied The supporting legs 13 and 23 are not extended outwardly but are easily folded inward because the supporting legs 13 and 23 are supported by the folding back supports 15 and 25 in this case.

The conventional folding table is a structure in which the support legs 13 and 23 are coupled to the hinge pins 11a and 21a of the outer rotation support means 11 and 21, It is not possible to maintain an accurate upright state, and the stability is low due to the occurrence of shaking at the time of use, which leads to a deterioration of the merchantability. Particularly, when a heavy load is applied to the upper plate, the unfolded state of the support leg is released and the table is folded.

In order to solve the conventional problems as described above, the present applicant has proposed a footrest folding device as disclosed in Korean Patent Registration No. 10-1356778.

As shown in Fig. 2, the above-mentioned footrest folding apparatus includes a stationary bracket 1 having a lower end of a pedestal leg pivotably connected and a movable slot 12 formed in a front-rear direction, A stopper member 3 which is movably mounted on the fixed bracket 2 and a stopper member 3 which is connected to the stopper member 3 and the fixed bracket 1, , And an elastic member (4) provided to provide an elastic force to advance the stopper member.

In the footrest folding device according to the above-mentioned Japanese Patent No. 10-1356778, since the folding motion of the folding member is restrained and adjusted by the stopper member 3 capable of moving forward and backward, the footrest is correctly opened and the unfolded state is firmly maintained, Stability, and merchantability of the conventional leg-leg-leg-like folding device. However, the conventional leg-leg-leg-folding device has the following limitations commonly associated with the following problems.

More specifically, in the folding structure of the folding table according to the above-mentioned public utility model No. 20-2008-0003634, when the support legs are erected, the folding back zones 15 and 25 are unfolded, The folding member 2 is unfolded when the supporting leg is uprighted, so that interference occurs in the legs or the lower body part of the user, so that it is inconvenient when using the supporting legs folding device according to the Japanese Patent No. 10-1356778.

In addition, the conventional footrest leg-like folding apparatus as described above has a disadvantage in that safety is low, for example, when the pedestal legs are erected, the folded sheets 15 and 25 and the folded member 2 are damaged or scratched by the wearer have.

In addition, as described above, since the folding legs 15, 25 and the folding member 2 are unfolded and exposed when the legs stand upright, the conventional footrest folding device acts as a limiting factor to the design of the table, There is a limit in that the merchantability is deteriorated.

Korean Utility Model Laid-Open No. 20-2008-0003634 "Folding structure of folding table" Korean Registered Patent No. 10-1356778 "Foot-leg folding device"

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described circumstances, and it is an object of the present invention to improve the convenience and safety of use by providing an upright state of a support leg stably without providing a connection member exposed to the outside in an upright state of the support leg And it is an object of the present invention to provide a pedestal leg folding device which is excellent in appearance and can improve the merchantability.

In order to achieve the above object, a footrest folding apparatus according to the present invention is a footrest folding apparatus comprising: a support bracket coupled to a leg support portion and having a lower end rotatably connected; An operating bracket rotatably connected to the pedal leg; A first hinge member rotatably fixing the support leg to the support bracket; A second hinge member for rotatably fixing the operation bracket to the support leg; And an elastic member connected to apply an elastic force to the operation bracket, wherein the operation bracket includes a latch portion formed at one side of the hinge point at which the second hinge member is connected to be engaged or disengaged from the support bracket, And an operation lever portion configured to apply an operating force to the other side with respect to a hinge point, wherein the support bracket is formed with a latching jaw such that the latching portion is engaged when the support leg is upright.

The support leg folding apparatus according to the present invention further comprises a guide member installed on the support leg and guiding the rotation operation, and a guide hole is formed in the support bracket so that the guide member is inserted and moved.

The bushing further includes a bushing provided on the second hinge member, and a moving curved surface portion curved and formed in an arc shape is formed on the support bracket to move the bushing in contact with the bushing.

Preferably, the support bracket is formed in a 'C' shape having a pair of side plates facing each other and a connection plate connected between the side plates, the side plate being formed with the latching jaw being recessed and formed, And the operating lever portion is formed to extend in a diagonal direction on one side of the engaging portion, and the operating lever portion is formed to extend in a diagonal direction on one side of the engaging portion do.

The support leg folding apparatus according to the present invention includes: an auxiliary support bracket rotatably connected to a lower end of a second support leg disposed opposite to the support leg and formed in the same shape as the support bracket; An auxiliary operation bracket rotatably connected to the second support leg and formed in the same shape as the operation bracket; A first auxiliary hinge member for rotatably fixing the second supporting leg to the auxiliary supporting bracket; A second auxiliary hinge member for rotatably fixing the auxiliary operation bracket to the second base leg; An auxiliary guide member provided on the auxiliary support leg and guiding the rotation operation; An auxiliary elastic member connected to apply an elastic force to the auxiliary operation bracket; And an operating rod provided between the operating bracket and the operating lever portion of the auxiliary operating bracket.

Here, the safety cover may be provided to seal the space formed between the support bracket and the auxiliary support bracket when the support leg and the second support leg are folded.

According to the footrest folding apparatus of the present invention, since the upright state of the foot leg can be stably maintained without providing a separate connecting member for connecting the foot leg and the portion where the foot leg is installed, It is possible to solve the problem of being damaged or being injured to a part of the body, thereby improving the safety.

In addition, according to the footrest folding apparatus of the present invention, there is no interference between the pedestal legs and the pedestal legs, so that convenience in use is improved and the aesthetic appearance is improved Not only the merchantability is improved but also there is an advantage that it does not act as a limiting factor when designing or designing a table or the like.

In addition, according to the footrest folding apparatus of the present invention, the structure and the assembling process are relatively simple and simple, thereby reducing the manufacturing cost and improving the productivity.

1 and 2 are views for explaining a conventional leg-restraining leg device,
3 is a perspective view illustrating a state in which a footrest folding device according to an embodiment of the present invention is installed;
FIG. 4 is an exploded perspective view showing a leg-restraining apparatus according to an embodiment of the present invention;
5 is a view for explaining an operation of a foot-leg folding apparatus according to an embodiment of the present invention,
6 is a perspective view showing a state in which a footrest folding device according to another embodiment of the present invention is installed;
FIG. 7 is an exploded perspective view showing a leg-restraining apparatus according to another embodiment of the present invention;
8 is a view for explaining the operation of the footrest folding apparatus according to another embodiment of the present invention.

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

FIG. 3 is a perspective view of a footrest folding apparatus according to an embodiment of the present invention, FIG. 4 is an exploded perspective view of a footrest folding apparatus according to an embodiment of the present invention, and FIG. Fig. 8 is a perspective view showing the shape of the foot leg folding device according to the embodiment, showing the shape of the foot leg folding device. Fig.

3 to 5, the footrest folding device according to an embodiment of the present invention may be installed on an article provided with a footrest, such as a table, a table, a desk, etc., A supporting bracket 1, a working bracket 2, a first hinge member 3, a second hinge member 4 and an elastic member 5 are provided.

The supporting bracket 1 is a component which is coupled to a leg supporting portion b formed of a wood or the like so that the supporting leg a is installed and to which the lower end of the supporting leg a is rotatably connected, And a pair of side plates 11 facing each other and a connecting plate 12 integrally connected between the side plates 11. As shown in Fig.

Each of the side plates 11 is provided with a latching protrusion 111 which is engaged with and formed so as to latch the latching portion 21 of the operation bracket 2 to be described later in a state in which the support leg a is erected, The first hinge hole 112 and the guide hole 113 are formed in such a manner that the first hinge hole 112 and the guide hole 113 are punched to face each other.

Further, the side plate 11 is provided with a fixing protrusion 116 protruding upward. The fixing protrusion 116 functions to increase the binding strength to the leg supporting portion b when the supporting bracket 1 is installed.

The operation bracket 2 is a component that is rotatably connected to the support leg a and is provided at one side with respect to the hinge point at which the second hinge member 4 is connected to the engaging tab 111 of the support bracket 1 An engaging portion 21 formed to be engaged or disengaged, and an operation lever portion 22 formed to apply an operating force to the other side with respect to the hinge point.

The engaging portion 21 is disposed such that the plate member having a smaller width than the support bracket 1 is bent in a 'C' shape so that both side portions 211 are positioned on the side surface of the supporting leg a. At this time, a second hinge hole 213 is formed in the side portion 211 of the latching portion 21 so as to insert a second hinge member 4, which will be described later.

The operation lever portion 22 is formed at one side of the latching portion 21 in a diagonal direction and has an operation rod coupling hole 213 for coupling the operation rod 9 to be described later.

The first hinge member 3 is a component that rotatably fixes the support leg a to the support bracket 1. The first hinge member 3 is formed of a screw and is coupled to the first hinge hole 112. [

The second hinge member 4 is a component for rotatably fixing the operation bracket 2 to the support leg a and is formed of a screw and is coupled to the second hinge hole 213.

The second hinge member 4 is provided with a bushing 61 for performing guiding action when the actuating bracket 2 is rotated. The bushing 61 is formed in a ring shape and is fitted to the second hinge member 4 so as to be positioned between the inner surface of the operation bracket 2 and the outer surface of the support leg a. The supporting bracket 1 is formed with a moving curved surface portion 114 curved in an arc shape in the corresponding side plate 22 so that the bushing 61 is moved in contact with the supporting bracket 1.

The elastic member 5 is constituted by a tension coil spring having a latching ring 51 formed at both ends thereof to be connected to apply an elastic force to the operation bracket 2.

The tension coil spring is engaged with the side plate 11 of the support bracket 1 so that the one latching ring 51 is engaged with the side portion 211 of the latching portion 21 of the operation bracket 2 and the other latching ring 51 is engaged with the side plate 11 of the support bracket 1. [ An elastic member fastening bolt 62 is coupled to the operation bracket 2. The elastic member fastening piece 115 is bent and formed on the side plate 11 of the support bracket 1 have.

Meanwhile, the footrest folding apparatus according to the present invention is further provided with a guide member 7 for performing folding operation of the support leg a more stably.

The guide member 7 is formed of a screw in the same manner as the first and second hinge members 3 and 4 and is inserted into the guide hole 113 formed in the support bracket 1 and fixed to the support leg a. Since the guide member 7 moves along the locus of the guide hole 113 formed in the arc shape, the rotation operation of the support leg is guided, so that the folding operation is performed more stably. The guide member 7 is provided with a bushing 61 for smooth movement.

On the other hand, the support leg (a) is formed with a safety cover (8) for sealing a space formed between the support leg (a) and the support bracket at the time of folding. The safety cover 8 is formed of a plate member extending on the upper end of the support leg a so as to seal the space formed between the both side plates 11 during the rotation of the support leg, To prevent the occurrence of safety accidents.

Hereinafter, the assembling process and operation of the footrest folding apparatus according to one embodiment of the present invention will be described.

An upper portion of the support bracket 1 is welded to the leg support b as shown in Fig. 3 and the support leg a is inserted into the space between the side plates 11 of the support bracket 1, 1 The hinge member 3 is inserted into the first hinge hole 112 and fastened to the fastening hole a1 formed on the support leg. The second hinge member 4 is inserted into the second hinge hole 213 and the fastening hole 21 formed in the support leg a is inserted into the second hinge hole 213, (a2).

The bushing 61 is inserted into the guide member 7 and inserted through the guide hole 113 to be fastened to the fastening hole a3 formed in the support leg so that the one side engagement ring 51 of the elastic member 5 Is inserted into the elastic member binding piece 115 of the support bracket 1 and the other side engagement ring is fastened to the elastic member binding bolt 62 fastened to the operation bracket 2, the leg leg is assembled in the upright state.

At this time, the engaging portion 21 of the operation bracket 2 is engaged with the engaging step 111 of the support bracket 1, and the upright state of the support leg a is stably maintained. The elastic member 5 applies a tensile elastic force to the operation bracket 2 to perform a function of firmly maintaining the upright state of the support leg a. When the upper plate is coupled to the leg supporting portion (b) provided with the supporting leg (a), it can be used as a table or a desk.

As shown in FIG. 5, when the upright leg (a) is folded up as described above, when a rotational force is applied to the operation lever portion 22 in the inner direction (clockwise direction) The hinge member 4 is rotated with respect to the hinge member 4 and the engaging portion 21 is lifted and rotated so that it is disengaged from the engaging jaw 111 of the support bracket 1. [ At the same time, when a rotational force is applied to the supporting leg, the guide member 7 is moved along the guide hole 113 formed in the arc shape. At this time, the bushing 61 coupled to the second hinge member 4 is moved along the moving curved surface portion 114, so that the supporting leg a is smoothly rotated and folded into a shape shown in FIG. 5 .

When the user rotates the support leg in the opposite direction, the guide member 7 is moved in the reverse direction while being guided by the guide hole 113 and the second hinge member 4 The bushing 61 is moved along the moving curved surface portion 114. Thereafter, when the support leg is erected, the engagement portion 21 of the operation bracket 2 is engaged with the engagement protrusion 111 of the support bracket 1, and the elastic member 5 applies a tensile force to the operation bracket 2 So as to more firmly maintain the upright state of the back leg (a).

Hereinafter, other embodiments according to the present invention will be described, and a description of components similar to those of the above-described embodiments will be omitted, and components having differences will be mainly described. In addition, in the following other embodiments, any of the constituent elements shown in the embodiments may be selectively applied, so that detailed description thereof will be omitted.

FIG. 6 is a perspective view showing a state in which a footrest folding apparatus according to another embodiment of the present invention is installed, FIG. 7 is an exploded perspective view showing a footrest folding apparatus according to another embodiment of the present invention, and FIG. Fig. 8 is a view for explaining the operation of the leg-restraint apparatus according to the example.

6 to 8, the footrest folding device according to an embodiment of the present invention may be installed on an article provided with a footrest, such as a table, a table, a desk, etc., A first hinge member 3, a second hinge member 4, an elastic member 5, and a guide member 7, wherein the support bracket 1, the operation bracket 2, the first hinge member 3, The auxiliary supporting bracket 1 ', the auxiliary operation bracket 2', the first auxiliary hinge member 1 ', and the second auxiliary supporting member 2' are formed so that the second supporting legs a ' 3 ', a second auxiliary hinge member 4', an auxiliary elastic member 5 ', and an auxiliary guide member 7', and between the operation bracket 2 and the auxiliary operation bracket 2 ' And is further provided with a working rod 9 to be connected thereto.

The auxiliary support bracket 1 'is rotatably connected to the lower end of the second support leg a' facing the support leg a and is disposed so as to face the support bracket 1, And therefore detailed description thereof will be omitted.

The auxiliary operation bracket 2 'is rotatably connected to the second support leg a', and is formed in the same shape as the above-described operation bracket 2, so a detailed description thereof will be omitted. The auxiliary operation bracket 2 'is disposed on the inner side facing the operation lever portion 22 of the operation bracket 2 so that the auxiliary operation bracket 2' is connected to the operation rod 9 to be described later.

The operation rod 9 is a component provided to simultaneously perform a folding operation of the support leg a and the second support leg a 'that face each other even if the user applies a single operation force, And is provided between the operating bracket 2 and the operating lever portion 22 of the auxiliary operating bracket 2 '.

The first auxiliary hinge member 3 'is a component for rotatably fixing the auxiliary supporting bracket 1' to the second supporting leg a 'and the second auxiliary hinge member 4' The auxiliary elastic member 5 'is a component that is connected to apply an elastic force to the auxiliary operation bracket 2'. The auxiliary elastic member 5 ' 2 are formed in the same shape as the hinge members 3, 4 and the elastic member 5, detailed description thereof will be omitted.

Hereinafter, the assembling process and operation of the footrest folding apparatus according to another embodiment of the present invention will be briefly described.

An upper portion of the support bracket 1 and the auxiliary support bracket 1 are joined to the leg support portion b by a welding method as shown in Fig. 6, and the operation bracket 2, The hinge member 3, the second hinge member 4, the elastic member 5 and the guide member 7 are assembled in the same manner as in the above-described embodiment, and the auxiliary supporting bracket 1 ' The operation bracket 2 ', the first auxiliary hinge member 3', the second auxiliary hinge member 4 ', the auxiliary elastic member 5' and the auxiliary guide member 7 'are assembled in the same manner Assembling is completed when the operating rod 9 is installed between the operating bracket 2 and the operating lever portion 22 of the auxiliary operating bracket 2 '.

When the assembled leg leg a and the second leg leg a 'are folded as described above, a rotating force is applied to the working rod 9 in the inner direction (clockwise direction) as shown in FIG. 8 The operation bracket 2 is rotated on the basis of the second hinge member 4 and the second auxiliary hinge member 4 'of the auxiliary operation bracket 2', and the engaging portion 21 is rotated while being lifted, The support bracket 2 and the auxiliary operation bracket 2 'are detached from the engagement bracket 111 of the support bracket 1 and the auxiliary support bracket 1'.

At the same time, when a rotational force is applied to the supporting legs a and the a ', the guide member 7 and the auxiliary guiding member 7' are moved along the guide holes 113 and the second hinge member a ' Since the bushings 61 and 61 'coupled to the first auxiliary hinge member 4 and the second auxiliary hinge member 4' are moved along the moving curved surface portion 114, the supporting legs a and the second supporting legs a ' Thereby performing folding while performing rotational motion.

On the other hand, when the user rotates the supporting legs and the second supporting legs in the opposite direction, the guide member 7 and the auxiliary guide member 7 ' The bushings 61 and 61 'coupled to the second hinge member 4 and the second auxiliary hinge member 4' are moved in the reverse direction on the guide hole 113 while moving along the moving curved surface portion 114 do.

Then, when the pedestal legs and the second pedestal legs are erected, the engaging portions 21 of the operation bracket 2 and the auxiliary operation bracket 2 'are engaged with the engaging jaws 111 of the support bracket 1 and the auxiliary support bracket 1' And the elastic member 5 and the auxiliary elastic member 5 'are fixed to the supporting bracket 2 and the auxiliary operating bracket 2' by applying a tensile force to the working bracket 2 and the auxiliary operating bracket 2 ' &Quot;) to maintain the upright state of the < / RTI >

As described above, the present invention is not limited to the above-described embodiment, but may be embodied in various forms without departing from the scope and spirit of the invention as claimed in the following claims It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

The terms used in the above embodiments are used only to describe specific embodiments and are not intended to limit the present invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

1: Support bracket 1 ': Auxiliary support bracket
2: Operation bracket 2 ': Auxiliary operation bracket
3: first hinge member 3 ': first auxiliary hinge member
4: second hinge member 4 ': second auxiliary hinge member
5: elastic member 5 ': auxiliary elastic member
6,6 ': Bushing 7: Guide member
7 ': Auxiliary guide member 8: Safety cover
9: Working rod a: Foot leg
a ': second support leg

Claims

In the leg-restraint apparatus,
A support bracket coupled to the leg support and to which the lower end of the support leg is rotatably connected;
An operating bracket rotatably connected to the pedal leg;
A first hinge member rotatably fixing the support leg to the support bracket;
A second hinge member for rotatably fixing the operation bracket to the support leg;
And an elastic member connected to apply an elastic force to the operation bracket,
The operation bracket includes a latching portion formed to be engaged with or disengaged from the support bracket at one side with respect to a hinge point to which the second hinge member is connected and an operation lever portion configured to apply an actuating force to the other side of the hinge point, ,
Wherein the supporting bracket is formed with a latching jaw so that the latching portion is engaged when the supporting leg is upright.

The method according to claim 1,
And a guide member provided on the support leg and guiding the rotation operation,
Wherein a guide hole is formed in the support bracket such that the guide member is inserted and moved.

3. The method of claim 2,
And a bushing installed in the second hinge member,
Wherein the supporting bracket is provided with a curved curved surface formed in a curved shape so as to move the bushing in contact with the supporting bracket.

3. The method of claim 2,
The supporting bracket is formed in a 'C' shape having a pair of side plates facing each other and a connecting plate connected between the side plates. The side plate is formed with the latching jaw being formed and the first hinge member is inserted Wherein the first hinge hole and the guide hole are formed so as to face each other,
Wherein the engaging portion of the actuating bracket is formed in a 'C' shape, and the actuating lever portion is formed to extend in a diagonal direction on one side of the engaging portion.

5. The method according to any one of claims 1 to 4,
An auxiliary support bracket rotatably connected to a lower end of a second support leg disposed opposite to the support leg and formed in the same shape as the support bracket;
An auxiliary operation bracket rotatably connected to the second support leg and formed in the same shape as the operation bracket;
A first auxiliary hinge member for rotatably fixing the second supporting leg to the auxiliary supporting bracket;
A second auxiliary hinge member for rotatably fixing the auxiliary operation bracket to the second base leg;
An auxiliary guide member provided on the auxiliary support leg and guiding the rotation operation;
An auxiliary elastic member connected to apply an elastic force to the auxiliary operation bracket; And
And an operating rod provided between the operating bracket and the operating lever of the auxiliary operating bracket.

6. The method of claim 5,
And a safety cover which seals a space formed between the support bracket and the auxiliary support bracket when the support leg and the second support leg are folded.