KR102336011B1 - Foldable type stage apparatus - Google Patents

Abstract

The present invention relates to a storage-type stage apparatus which is able to be stored in a wall surface in ordinary times, allow a user to use the space for installing the stage apparatus for other multiple purposes, be easily unfolded and fixed to be used when being installed, maintain a stable fixed status when unfolded, realize the semi-automation of the unfolding motion, and promote the rapid, easy installation of stage. According to the present invention, the storage-type stage apparatus comprises: a rotation support assembly placed on a lower end part of a storage groove formed on a wall; a stage assembly formed to meet the size of the storage groove, and having a lower end part rotatably engaged with the rotation support assembly; and a rotary force application means configured between the rotation support assembly and the stage assembly, and applying a rotary force to the stage assembly.

Description

Retractable Stage Equipment {FOLDABLE TYPE STAGE APPARATUS}

The present invention relates to a retractable stage device, and more particularly, by storing the stage device in a state stored on the wall, the space where the stage device is installed can be used as another multi-purpose space, and it can be easily spread and fixed when the stage is installed. It relates to a retractable stage device that can be used and maintained in a stable fixed state in an unfolded state, and furthermore, realizes the unfolding operation in a semi-automated manner to promote quick and easy stage installation work.

In general, a stage device is intended to install a stage used for performing performances in genres such as plays or concerts or film shooting, and such a stage is a proscenium stage using a curtain inside a theater with a roof, a circular stage There are an arena stage, a stage at the same height as the audience, and a movable stage installed on a festival car as in medieval plays in Europe.

Recently, due to the diversification of performances, small-scale performances are being performed regardless of location.

Therefore, in setting up a stage for a performance, not only robust durability and practicality, but also smooth mobility and simplicity, ease and speed according to installation and removal are required.

1 is a view showing an embodiment of a conventional stage device, the conventional stage device currently used to install a stage has a U-shape, as shown in FIG. 1 , and fixtures 110 are provided at both upper ends As the connecting rod 120 having a predetermined length is fitted and coupled to the fastener 130, it consists of a pair of support frames 140 installed to be supported and fixed in an upright state.

Here, in the fixture 110 , a connecting pipe 112 is formed downward, a square plate-shaped bracket 114 is coupled to the upper end of the connecting pipe 112 , and the same is the same on the upper surface of the bracket 114 . It has a configuration in which a plurality of fixing protrusions 116 are formed at intervals.

The conventional stage apparatus 100 as described above is installed so that a pair of support frames 140 are erected by connecting rods 120 that are cross-connected so as to have an 'X' shape, and the upper end of the support frame 140 . The stage is installed by placing the top plate on the fixtures 110 respectively coupled to the .

However, in the conventional stage apparatus as described above, although it has the advantage of relatively easy disassembly for installation and disassembly, the number of parts provided for installing the stage is too large, and each part is manually assembled one by one It has to be done or disassembled, so the operation is cumbersome and difficult.

In addition, in the process of connecting a pair of support frames with a connecting rod, the conventional stage device requires at least two working personnel, and it takes a lot of work time to assemble a large number of parts, so workability is poor. It is inefficient and has the disadvantage of not being economical.

And since the conventional stage device as described above is composed of a large number of parts, it is difficult to transport it to the installation site, there is a high risk of loss of parts during storage, and it is often lost, and any one If the parts are lost, there is a huge problem that it is impossible to install a complete and stable stage device as a whole.

Republic of Korea Registered Utility Model Publication 20-0352958 (2004.06.09. Announcement) Republic of Korea Patent Publication No. 10-0695897 (2007.03.19. Announcement) Republic of Korea Patent Publication No. 10-2069661 (2020.02.11. Announcement)

Therefore, the present invention for solving the above-mentioned problems of the prior art can utilize the space in which the stage device is installed as another multi-purpose space by storing the stage device in a state that it is stored on the wall, and can be easily spread out when installing the stage. It is possible to maintain a stable fixed state in an unfolded state, and an object of the present invention is to provide a retractable stage device.

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

According to one aspect of the present invention for achieving the above objects and other features of the present invention, in the stage device, the rotation support assembly provided at the lower end of the receiving groove formed in the wall; a stage assembly formed to correspond to the size of the receiving groove, the lower end of which is rotatably coupled to the rotation support assembly; and a rotational force applying means configured between the rotational support assembly and the stage assembly to apply a rotational force to the stage assembly.

In the present invention, the rotation support assembly includes a bottom frame fixed to the bottom surface of the receiving groove, a pair of vertical frames fixed to the bottom frame with a gap, and a rotation coupling formed at an upper end of each of the vertical frames a bracket, and a rotating shaft frame transverse to the lower end of the stage assembly in the width direction and having both ends fixed to both sides of the lower end of the stage assembly, the stage assembly comprising: a stage frame frame comprising a stage frame frame; It includes a cover plate provided on a side surface, a reinforcing skeleton frame provided on the lower surface of the stage skeleton frame to reinforce the stage skeleton frame, and a leg frame having one end rotatably coupled to the stage skeleton frame and provided with a predetermined interval. can do.

In the present invention, the vertical frame is formed to have a height corresponding to the height of the support bar, the rotation coupling bracket is formed as a U-shaped bracket, and is formed to have a through hole through which the rotation shaft frame passes, The leg frame may include a connecting bracket provided at the edges of the upper end and the middle portion on the lower surface of the stage frame frame, and a support bar having one end rotatably coupled to the connecting bracket.

In the present invention, the rotational force applying means, one end is coupled to the rotation coupling bracket, the other end is coupled to the stage assembly, one or more springs for providing an elastic force for rotating in the direction in which the stage assembly is accommodated. may include

In the present invention, the rotating force applying means is provided at both ends of the rotating shaft frame, one end is respectively coupled to the stage assembly and the other end is fixed to one side of the rotating coupling bracket, a first coil spring, and the a second coil spring provided on both sides based on the center of the rotating shaft frame, the other end being coupled to the stage assembly, and one end fixed to the other side of the rotation coupling bracket, the first and second coil springs The end coupled to the stage assembly may be configured to be coupled parallel to the stage assembly.

In the present invention, further comprising an automatic fixing unit configured to automatically fix the stage assembly in the unfolded state to the ground upon completion of the unfolding operation of the stage assembly, wherein the automatic fixing unit is separated from the fixed base block by a certain distance A locking protrusion installed in one or more recessed grooves of the upper opening formed in the ground of the position and having a locking protrusion formed at an upper end thereof, and a proximal end portion rotatably provided at a lower portion of the stage assembly and distal end portion ) is formed with a locking protrusion to be hooked to the locking protrusion, an elastic member providing elastic force in the fastening direction of the locking hook, and the locking hook so that the locking hook can be operated to rotate in the unlocking direction It may include; a lock release knob formed extending to one side from the.

In the present invention, a forward and reverse rotatable driving motor installed in a recessed groove formed in the ground at a location separated from the fixed base block by a predetermined distance; a control switch configured on one side of the driving motor to control forward and reverse rotation driving of the driving motor; a locking ring formed at the upper end of the stage assembly; and a drive chain having one end connected to the locking ring, the other end having a free end, and connected to the rotation shaft of the drive motor when the stage device unfolds.

In the present invention, a locking ring provided in a recessed groove formed in the ground at a location separated from the fixed base block by a predetermined distance; a forward and reverse rotatable driving motor mounted on the upper end of the stage assembly; a control switch configured on one side of the driving motor to control forward and reverse rotation driving of the driving motor; and a drive chain having one end connected to the driving motor, the other end having a free end, and connected to the locking ring when the stage device unfolds.

According to the retractable stage device according to the present invention, the following effects are provided.

First, the present invention has the effect of being able to utilize the space where the stage device was used as another multi-purpose space by storing the stage device in a state stored on the wall when the stage device is not in use.

Second, the present invention has the effect of being able to use it safely and stably by easily unfolding the stage and automatically fixing it in the unfolded state.

Third, the present invention has the effect that the stage device can be easily returned to the original storage space with little force.

Fourth, the present invention has an effect that can promote quick and easy stage installation work by implementing the unfolding operation of the stage device in a semi-automatic manner.

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

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows one Embodiment of the conventional stage apparatus.
2 is a perspective view illustrating a state in which the retractable stage device according to the present invention is erected and accommodated in a wall or the like.
3 is a perspective view viewed from one side in a state in which the retractable stage device according to the present invention is unfolded.
4 is a perspective view of the retractable stage device according to the present invention, viewed from one side, in a state in which the cover plate is omitted while standing up and being accommodated in a wall.
5 is a perspective view viewed from the other side in a state in which the cover plate is omitted in the retractable stage device according to the present invention.
6 is a process diagram showing a process of using the retractable stage device according to the present invention.

Additional objects, features and advantages of the present invention may be more clearly understood from the following detailed description and accompanying drawings.

Prior to the detailed description of the present invention, the present invention can make various changes and can have various embodiments, and the examples described below and shown in the drawings are not intended to limit the present invention to specific embodiments. No, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

When an element is referred to as being “connected” or “connected” to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, terms such as "...unit", "...unit", "...module", etc. described in the specification mean a unit that processes at least one function or operation, which includes hardware or software or hardware and It can be implemented by a combination of software.

In addition, in the description with reference to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

Hereinafter, a retractable stage device according to a preferred embodiment of the present invention will be described in detail with reference to the retractable stage device.

2 is a perspective view showing a state in which the retractable stage device according to the present invention is erected and stored on a wall, etc., and FIG. 3 is a perspective view viewed from one side in an unfolded state of the retractable stage device according to the present invention. 4 is a perspective view from one side of the retractable stage device according to the present invention in a state in which the cover plate is omitted while standing up and stored on a wall, etc., and FIG. 5 is a cover plate in the retractable stage device according to the present invention. It is a perspective view seen from the other side in the omitted state, and FIG. 6 is a process diagram showing a process of using the retractable stage device according to the present invention.

A retractable stage device according to the present invention, as shown in Figures 2 to 6, a large rotation support assembly (100); stage assembly 200; and a rotational force applying means 300 .

Specifically, the retractable stage device according to the present invention is provided at the lower end of the receiving groove R (refer to FIG. 6 ) formed in the wall W, as shown in FIGS. 2 to 6 , and the following stage assembly 200 ) of one end (lower end) is rotatably coupled to the rotation support assembly 100; The stage assembly 200 is formed to correspond to the size of the receiving groove (R), the lower end is rotatably coupled to the rotation support assembly (100); and a rotational force applying means 300 configured between the rotational support assembly 100 and the stage assembly 200 and provided to apply a rotational force to the stage assembly 200 with respect to the rotational support assembly 200; do.

The rotation support assembly 100 includes a floor frame 110 fixed to the bottom surface of the receiving groove R formed in the wall W, and a pair of vertical frames that are erected and fixed to the floor frame 110 with a gap therebetween. 120 and the vertical frame 120, the rotation coupling bracket 130 formed at the top of each, and transverse to the lower end of the stage assembly 200 in the width direction, both ends are both ends of the lower end of the stage assembly 200 It includes a rotating shaft frame 140 fixed to the. Here, a cover plate 150 is provided on the front surface of the rotation support assembly 100 .

The vertical frame 120 is preferably formed to have a height corresponding to the height of the support bar provided in the stage assembly 200 to be described below.

The rotation coupling bracket 130 is formed as a U-shaped bracket, and has a through hole through which the rotation shaft frame 330 passes.

Here, a roller bearing is interposed between the rotation coupling bracket 130 and the rotation shaft frame 140 in order to reinforce the smooth rotation and rotation support force of the rotation shaft frame 140 with respect to the rotation coupling bracket 130 . can be combined.

Next, the stage assembly 200 is formed to correspond to the size of the receiving groove (R), and is configured to be rotatably coupled through the rotation support assembly 100 .

Specifically, the stage assembly 200 includes a stage skeleton frame 210 having a lattice frame structure, a cover plate 220 provided to cover the upper surface and side surfaces of the stage skeleton frame 210, and the stage skeleton A reinforcing skeleton frame 230 provided on the lower surface of the frame 210 to reinforce the stage skeleton frame 210, and a leg frame having one end rotatably coupled to the stage skeleton frame 210 and having a predetermined interval ( 240) may be included.

The stage frame frame 210 is composed of a frame for forming a stage having a lattice structure and a circular or rectangular shape by combining a vertical beam and a horizontal beam made of a material with high rigidity, such as iron. This stage frame frame 210 is formed in a shape corresponding to the shape of the receiving groove (R) formed in the wall (W).

The cover plate 220 is fixed to cover the upper surface and the side surface of the stage skeleton frame 210, and the upper surface side cover plate forms a stage scaffold.

In addition, the reinforcing skeleton frame 230 has a skeletal structure of a vertical frame and a horizontal frame, and is formed with a gap on the lower surface of the stage skeleton frame 210 .

For example, the reinforcement skeleton frame 230 includes a lower reinforcement skeleton frame 231 provided on the lower side of the stage skeleton frame 210 and an intermediate reinforcement skeleton provided on the middle side of the stage skeleton frame 210 . It includes a frame 232, and an upper reinforcement skeleton frame 233 provided on the upper side of the stage skeleton frame 210. These reinforcing frame frames 231 to 233 may be configured with more or less reinforcing frames in consideration of the size of the stage frame frame 210 .

Here, the upper reinforcing frame 233 or the middle reinforcing frame 232 of the reinforcing frame frame 230 also serves as a handle when unfolding the stage device from the receiving groove R of the wall W.

Subsequently, the leg frame 240 is rotatably coupled to the connection brackets 241 provided at both ends of the upper end and the middle part, respectively, and one end to the connection bracket 241 on the lower surface of the stage skeleton frame 100 , respectively. It consists of a plurality of support bars 242 and a reinforcing frame 243 connecting and reinforcing the support bars 242.

The length of the support bar 242 determines the height of the stage device, and is formed to correspond to the height of the vertical frame 120 .

And the support bar 242 is provided with a height adjustment member 244 capable of height adjustment with respect to the ground (the bottom surface of the space where the stage assembly is to be installed) is threadedly coupled to the other end, which is the free end of the support bar 242 . can be

2 and 3, the lower surface of the stage assembly 200 is a view showing a state finished by the cover plate.

Next, the rotational force applying means 300 is configured between the rotational support assembly 100 and the stage assembly 200 to apply a rotational force to the stage assembly 200 with respect to the rotational support assembly 200 . do.

The rotational force applying means 300 has one end coupled to the rotational coupling bracket 130 and the other end coupled to the stage assembly 200 to provide an elastic force for rotating the stage assembly 200 in a direction in which it is accommodated. It may consist of one or more springs for

Specifically, the rotational force applying means 300 is provided at both ends of the rotating shaft frame 140, respectively, one end is coupled to the frame (stage frame frame) of the stage assembly 200, respectively, and the other end is a rotation coupling bracket. A pair of first coil springs 310 fixed to one side of 130 are provided on both sides with respect to the center of the rotating shaft frame 140, respectively, and the other end is the frame of the stage assembly 200, respectively. It is coupled to and one end includes a pair of second coil springs 320 fixed to the other side of the rotation coupling bracket (130).

Ends coupled to the stage assembly 200 in the first and second coil springs 310 and 320 are coupled in parallel to the stage assembly 200, thereby generating an elastic force for rotating the stage assembly 200 in the direction in which it is accommodated. will provide

The first and second coil springs 310 and 320 are at a certain point in the process of unfolding the stage assembly 200 in a state accommodated in the receiving groove R (for example, the stage assembly 200 is rotated at a predetermined angle). It is designed and configured to have an elastic force that enables it to be easily unfolded at the point of reaching .

On the other hand, in the retractable stage device of the present invention, one end is rotatably coupled to the rotation support assembly 100 , and the other end is rotatably coupled to the stage assembly 200 to rotate the stage assembly 200 . It rotates while buffering the speed, and rotation assistance means (not shown) configured to maintain the rotation completion state of the stage assembly 200 after the rotation is completed; may further include.

One end of the rotation auxiliary means is rotatably coupled to the rotation support assembly 100 , and the other end is rotatably coupled to the stage assembly 200 to complete rotation while buffering the rotation speed of the stage assembly 200 . After the stage assembly 200 is configured to maintain the rotation completion state.

Specifically, the rotation auxiliary means includes a plurality of fixed frames having one end (lower end) fixed to the bottom surface of the rotation support assembly 100 at regular intervals in the longitudinal direction, and the other end (upper end) of the fixed frame. A first coupling bracket formed on the stage assembly, a second coupling bracket formed with a predetermined interval from the lower surface of the stage frame frame 210 in the width direction of the stage frame frame, and one end of the stage frame frame 210 is attached to the first coupling bracket It is rotatably coupled, and the other end includes a rotational auxiliary hydraulic damper rotatably coupled to the second coupling bracket.

The fixed frame of the rotation assisting means is formed to have a height lower than that of the vertical frame 120 of the rotation support assembly 100 . This secures the operation of the hydraulic damper by the vector sum (resulting force) according to the expansion and contraction operation of the hydraulic damper when the stage assembly 200 rotates, and thus the stage assembly 200 is smooth while assisting the rotational force applying means 300 . and perform a smooth rotation motion, and ensure that a safe rotation motion can be performed.

The first coupling bracket and the second coupling bracket may be formed of a U-shaped bracket.

And the rotation auxiliary hydraulic damper may be rotatably coupled to the first coupling bracket and the second coupling bracket via a roller bearing.

The rotary auxiliary hydraulic damper is configured to exert a damping performance on the stage device itself.

In addition, the retractable stage apparatus according to the present invention further includes an automatic fixing unit capable of automatically fixing the stage assembly 200 in the unfolded state to the ground upon completion of the unfolding operation of the stage apparatus (stage assembly 200). may include

The automatic fixing unit is installed in one or more recessed grooves of the upper opening formed in the ground (the bottom surface of the space where the stage assembly is to be installed) at a predetermined distance away from the rotation support assembly 100, and a locking protrusion is formed at the upper end A locking protrusion and one end (proximal end) of the lower portion of the stage assembly 200 (specifically, the lower portion of one of the stage skeleton frame 210 , the reinforcing skeleton frame 230 , and the leg frame 240 ) portion) is provided rotatably and a hook portion (locking jaw portion) is formed on the upper end (distal end portion) to engage and engage the locking protrusion, and an elastic force is applied to the locking hook in the fastening direction It may be configured to include an elastic member, and a lock release knob extending from the locking hook to one side to be operated to rotate the locking hook in the unlocking direction.

The fastening hook has an inclined surface facing the locking protrusion, and when the stage assembly 200 rotates toward the ground, the inclined surface of the fastening hook rides down one side of the locking protrusion and moves in the unlocking direction. , the stage assembly 200 is fully unfolded, and at the same time the fastening hook is returned to its original position by the elastic member, and the hook part is caught by the locking protrusion of the locking protrusion and fixed.

Preferably, the fastening hooks are configured on both edge sides of the stage assembly 200 .

To release the jam between the fastening hook and the locking protrusion, press the lock release knob to release the hook part of the fastening hook from the locking jaw of the locking protrusion, and in this state, rotate the stage device to be accommodated in the receiving groove (R) of the wall (W). do.

And it is preferable that the recessed groove formed in the ground is normally covered by a cover body that rotates about one end as an axis to form a flat surface with the other ground.

The present invention can further include an automatic fixing unit as described above so that the stage device can be more stably maintained in an unfolded state.

On the other hand, the retractable stage device according to the present invention may further include a semi-automatic rotation unit capable of semi-automatically executing the unfolding operation of the stage device.

The semi-automatic rotation unit includes a forward and reverse rotatable driving motor installed in a recessed groove formed in a ground (a bottom surface of a space in which the stage assembly is to be installed) at a location separated from the rotation support assembly 100 by a predetermined distance, and one side of the driving motor A control switch configured to control the forward and reverse rotation driving of the drive motor, a locking ring formed at the upper end of the stage frame frame 210 of the stage assembly 200, and one end connected to the locking ring and the other end It has a free end and is configured to include a drive chain connected to the rotation shaft of the drive motor when the stage device is unfolded.

The semi-automatic rotation unit configured in this way connects the drive chain to the drive motor when the stage device is relatively large or a large force is required for the rotation operation of the stage device to execute the unfolding operation of the stage device with the rotational force of the drive motor. made to be

Here, the drive motor and the control switch are configured as a single control module, and the installation position of the control module and the locking ring may be configured on the opposite side.

In other words, the semi-automatic rotation unit, as another embodiment, includes a locking ring provided in a recessed groove formed in the ground (the bottom surface of the space where the stage assembly is to be installed) at a location separated from the rotation support assembly 100 by a predetermined distance; A forward and reverse rotatable driving motor mounted on the upper end of the stage frame frame 210 of the stage assembly 200, a control switch configured on one side of the driving motor to control forward and reverse rotational driving of the driving motor, and one end of the It is connected to the drive motor, and the other end is configured as a free end and includes a drive chain connected to the locking ring when the stage device unfolds.

The semi-automatic rotation unit of another embodiment configured as described above also connects the drive chain to the locking ring when the stage device is relatively large or a large force is required for the rotational operation of the stage device to expand the stage device with the rotational force of the driving motor action can be executed.

The embodiments described in this specification and the accompanying drawings are merely illustrative of some of the technical ideas included in the present invention. Accordingly, since the embodiments disclosed in the present specification are for explanation rather than limitation of the technical spirit of the present invention, it is obvious that the scope of the technical spirit of the present invention is not limited by these embodiments. Modifications and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical spirit included in the specification and drawings of the present invention should be interpreted as being included in the scope of the present invention.

W: wall
R: storage groove
100: rotation support assembly
110: floor frame
120: vertical frame
130: rotation coupling bracket
140: rotating shaft frame
150: cover plate
200: stage assembly
210: stage skeleton frame
220: cover plate
230: reinforcement skeletal frame
231: lower reinforcement skeletal frame
232: intermediate reinforcement skeletal frame
233: upper reinforcement skeletal frame
240: leg frame
241: connection bracket
242: Jijiba
243: reinforcement frame
244: height adjuster
300: rotational force application means
310: first coil spring
320: second coil spring

Claims (8)

In the stage equipment,
a rotation support assembly provided at the lower end of the receiving groove formed in the wall;
a stage assembly formed to correspond to the size of the receiving groove, the lower end of which is rotatably coupled to the rotation support assembly;
a rotational force applying means configured between the rotational support assembly and the stage assembly to apply a rotational force to the stage assembly; and
an automatic fixing unit configured to automatically fix the stage assembly in the unfolded state to the ground upon completion of the unfolding operation of the stage assembly; and
The automatic fixing unit is installed in one or more recessed grooves of the upper opening formed in the ground at a distance from the fixed base block, and a locking protrusion having a locking protrusion formed at the upper end thereof, and a proximal end at the lower part of the stage assembly. portion) is provided rotatably and a locking jaw portion is formed on a distal end portion to be hooked to the locking protrusion, an elastic member providing an elastic force to the locking hook in a fastening direction in a fastening direction, and the locking hook and a lock release knob extending to one side from the locking hook so that it can be operated to rotate in the unlocking direction.
Retractable stage set.
According to claim 1,
The rotation support assembly includes a bottom frame fixed to the bottom surface of the receiving groove, a pair of vertical frames fixed to the bottom frame with a gap, a rotation coupling bracket formed at an upper end of each of the vertical frames, and the stage Transverse to the lower end of the assembly in the width direction, both ends comprising a rotating shaft frame fixed to both lower sides of the stage assembly,
The stage assembly includes a stage frame frame comprising a stage frame frame, cover plates provided on upper and side surfaces of the stage frame frame, a reinforcing frame frame provided on a lower surface of the stage frame frame to reinforce the stage frame frame, and one end of the stage It is rotatably coupled to the skeleton frame, characterized in that it comprises a leg frame provided with a predetermined interval
Retractable stage set.
3. The method of claim 2,
The vertical frame is formed with a height corresponding to the height of the support bar,
The rotation coupling bracket is formed as a U-shaped bracket, and has a through hole through which the rotation shaft frame passes,
The leg frame is characterized in that it comprises a connection bracket provided on the edges of the upper end and the middle portion on the lower surface of the stage frame frame, and a support bar having one end rotatably coupled to the connecting bracket.
Retractable stage set.
4. The method of claim 3,
The rotational force applying means,
One end is coupled to the rotation coupling bracket, the other end is coupled to the stage assembly, characterized in that it comprises one or more springs for providing an elastic force to rotate in the direction in which the stage assembly is accommodated.
Retractable stage set.
4. The method of claim 3,
The rotating force applying means is provided at both ends of the rotating shaft frame, one end is respectively coupled to the stage assembly and the other end is a first coil spring fixed to one side of the rotating coupling bracket, and the center of the rotating shaft frame a second coil spring provided on both sides based on the
Ends coupled to the stage assembly in the first and second coil springs are configured to be coupled parallel to the stage assembly.
Retractable stage set.
delete According to claim 1,
a forward and reverse rotatable driving motor installed in a recessed groove formed in the ground at a location distant from the fixed base block;
a control switch configured on one side of the driving motor to control forward and reverse rotation driving of the driving motor;
a locking ring formed at the upper end of the stage assembly; and
A drive chain having one end connected to the locking ring and the other end having a free end connected to the rotation shaft of the drive motor when the stage device unfolds.
Retractable stage set.
According to claim 1,
a locking ring provided in a recessed groove formed in the ground at a distance away from the fixed base block;
a forward and reverse rotatable driving motor mounted on the upper end of the stage assembly;
a control switch configured on one side of the driving motor to control forward and reverse rotation driving of the driving motor; and
A drive chain having one end connected to the driving motor, the other end having a free end, and connected to the locking ring when the stage device unfolds.
Retractable stage set.

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