KR20210006162A - Integrated middle joint - Google Patents

Abstract

The integrated middle joint according to the present invention includes a driving part, a backrest part and a seating part, and a chair part installed on the upper part of the driving part, and a 3D movie theater or 4D movie theater, or a special installation installed in a virtual reality device. In the driving device for experiencing the effect, the driving unit includes a lower plate installed on the ground or a floor surface of a building; An upper plate installed to be spaced upward from the lower plate; A plurality of actuators installed between the lower plate and the upper plate; And a middle joint having a universal joint and a spline, and installed between the lower plate and the upper plate, wherein the universal joint and the spline are integrally formed. Such an integrated middle joint may increase rigidity by integrally forming a universal joint and a spline, maximize assembly convenience, and reduce manufacturing costs and installation costs.

Description

Integrated middle joint

The present invention relates to an integrated middle joint, and more particularly, by integrally forming a universal joint and a spline forming a middle joint to reduce the weight of the middle joint and improve rigidity to improve the stability and reliability of the middle joint, and The joint and spline are integrally formed to promote assembly convenience, thereby reducing the manufacturing process and manufacturing time, minimizing the production cost of the middle joint, maximizing the operator's convenience, and forming a universal joint and spline as an integral part, resulting in vibration and noise. 3D movie theater or 4D movie theater or playground equipment that can reduce maintenance costs by reducing the number of components to improve occupant comfort, maximize space utilization by promoting miniaturization, prevent wasting resources, and reduce maintenance costs by increasing the life of the integrated middle joint. Or, it relates to an integrated middle joint installed in a driving unit such as a virtual reality device or a game device.

Equipment such as airplanes and ships will implement 6 Degress of Freedom (六自由度) motion. The 6-degree of freedom motion is a yawing that rotates around the z-axis, a roll in which the y-axis rotates left and right around the x-axis, the pitch in which the z-axis rotates vertically around the y-axis, and the z-axis. It refers to six virtual motions of a heave linearly reciprocating on the phase, a surge linearly reciprocating on the y-axis, and a sway linearly reciprocating on the x-axis.

This drive, which implements a degree of freedom motion by driving a hydraulic actuator, was initially developed for military use for flight training. However, these driving devices have gradually developed into civilian training devices such as railways and ships as well as military use due to the development of science and computer graphics technology.

Moreover, such a driving device is also used for drivers of special construction equipment such as bulldozers and cranes through a system in which the surrounding image changes in real time so that practical training is difficult due to problems such as stability and cost.

Recently, as life becomes more abundant and leisure time increases, such driving devices are used not only for military purposes or training purposes, but also for entertainment purposes such as amusement parks, game simulators, 3D and 4D movie theaters.

In general, movie theaters can be broadly divided into general movie theaters that screen general movies (two-dimensional images), special movie theaters in places intended for entertainment such as theme parks, and exhibition movie theaters for education or promotion in museums/public information centers/exhibition halls. have.

In general, what the human eye sees is mainly a three-dimensional image, but when an image shot using a camera or camcorder is viewed through the screen of a general movie theater, the three-dimensional effect is greatly reduced because it is a flat image. do.

Conventionally, video screening facilities such as general movie theaters have simply shown only video to the audience.

Recently, with the spread of digital media capable of two-way communication of signals and the development of the film industry, a new type of film has been screened, providing various effects to the audience along with the screening of video. That is, a 3D or 4D 3D movie with improved realism as well as a 2D image by using a 3D photographing equipment when shooting a movie is being released.

Whereas conventional general movie theaters were simply places for viewing videos audio-visually, recent movie theaters are developing into places where you directly experience various effects as well as visual viewing of videos.

In general, a movie theater where you can visually feel the three-dimensional effect of a video by viewing a specially shot video is generally referred to as a '3D movie theater'. Separately, a movie theater that stimulates the sense of touch, smell, etc. in addition to the audio and visual senses The movie theater you are watching is referred to as a '4D movie theater'.

The beginning of this 4D movie theater can be said to be Ripley's Moving Theater, which opened in the United States in 1989. In this theater, a 20-minute specially produced video was screened, and the rain, wind, and snow were implemented so that visitors could directly experience rain, wind, and snow as special effects that fit the content of the video.

In order to drive the degree of freedom suitable for the movie situation to be screened to the audience in a 3D movie theater, 4D movie theater or theme movie theater, or to drive an amusement park, game, virtual reality equipment, etc. This will be implemented.

Like this, the middle joint is used to implement motion of more than 3 degrees of freedom, although not up to 6 degrees of freedom.

However, the middle joint used in the conventional 3D movie theater or 4D movie theater, amusement equipment, virtual reality device, or game device, is repetitive due to reduced rigidity as the universal joint and spline constituting the middle joint are not formed integrally but are separated. There is a problem that reliability and stability are deteriorated due to damage to the corresponding part or the coupling part by driving.

In addition, in the conventional middle joint, as the universal joint and spline are formed separately, the overall weight of the middle joint increases, resulting in increased vibration or noise during operation of the driving unit, causing inconvenience to occupants and visitors, and operates according to damage to the driving device. There was a problem that it was damaged in the middle and caused a safety accident for the occupants or visitors.

Moreover, the conventional middle joint is formed by separating the universal joint and the spline, and as they are combined with each other when the lower plate and the upper plate are installed, time and cost for production and installation work increase, causing inconvenience to the operator. , There was a problem of threatening the safety of workers and increasing the cost of the overall driving device.

In addition, since the conventional middle joint is formed by separating the universal joint and the spline, it is not possible to make the middle joint smaller and more compact, so that the driving device itself cannot be made small, thereby reducing space utilization and causing waste of resources.

Korean Patent Publication No. 10-2003-0017174

The present invention is to solve the above problems, and an object of the present invention is to reduce the weight of the middle joint by integrally forming a universal joint and a spline forming a middle joint with a metal material, while reducing the weight of the middle joint and improving the stability of the middle joint. It improves reliability and improves the convenience of assembly by forming a universal joint and spline integrally, reducing the manufacturing process and manufacturing time, reducing the production cost of the middle joint, maximizing the operator's convenience, and integrating the universal joint and spline. 3D movie theater that can reduce vibration and noise by reducing vibration and noise to improve occupant comfort, maximize space utilization by promoting miniaturization, prevent wasted resources, and reduce maintenance costs by increasing the life of the middle joint. Or, it relates to an integrated middle joint installed in a driving unit such as a 4D movie theater or a playground equipment or a virtual reality device, or a game device.

In order to achieve the object of the present invention, the integrated middle joint according to the present invention comprises a driving part, a backrest part and a seating part, and a chair part installed on the upper part of the driving part, and a cover part. Or in a driving device for experiencing special effects installed in a virtual reality device, the driving unit may include a lower plate installed on the ground or a floor surface of a building; An upper plate installed to be spaced upward from the lower plate; A plurality of actuators installed between the lower plate and the upper plate; And a middle joint having a universal joint and a spline, and installed between the lower plate and the upper plate, wherein the universal joint and the spline may be integrally formed.

In addition, in another preferred embodiment of the integral middle joint according to the present invention, the universal joint and the spline of the integral middle joint may be formed of a metal material.

In addition, in another preferred embodiment of the integral middle joint according to the present invention, the spline of the integral middle joint includes a support portion fixedly installed in a disk shape on an upper portion of the lower plate; A shaft portion extending in a height direction on an upper end of the support portion; A support portion formed in a disk shape on an upper end of the shaft portion; And an elastic part disposed between the support part and the support part to elastically support the support part and the support part while surrounding the circumferential surface of the shaft part.

In addition, in another preferred embodiment of the integral middle joint according to the present invention, the shaft portion of the spline of the integral middle joint is spaced from the center of the shaft portion along the circumferential surface of the shaft portion at a predetermined angle, and the height direction of the shaft portion is Accordingly, it may further include a plurality of grooves formed in a predetermined length.

In addition, in another preferred embodiment of the integral middle joint according to the present invention, the support portion of the spline of the integral middle joint is formed through the upper and lower ends of the support portion so as to be spaced apart from the center of the support portion at a predetermined angle along the outer peripheral surface of the support portion. It may further include a coupling groove;

In addition, in another preferred embodiment of the integral middle joint according to the present invention, the integral middle joint is fixed to the lower plate by bolts inserted into each of the coupling grooves formed in the support and coupled through the lower plate. Can be.

In addition, in another preferred embodiment of the integral middle joint according to the present invention, the universal joint of the integral middle joint includes a base portion coupled in a pair to correspond to a side transmitting a rotational force and a side receiving a rotational force; A connection portion coupled to the pair of base portions to transmit rotational force while the pair of the base portions are inclined at a predetermined angle; And a coupling portion for fixedly coupling the connection portion so as to be pivotable to the pair of the base portions.

The integrated middle joint according to the present invention maximizes the stiffness of the middle joint by integrally forming the universal joint and the spline with a metal material to prevent damage or damage to the middle joint as well as damage or damage to other equipment. It has the effect of improving stability and reliability, and preventing safety accidents that occur to passengers or visitors in advance.

In addition, the integrated middle joint according to the present invention maximizes space utilization by reducing the overall weight of the middle joint by reducing the overall weight of the middle joint and maximizing space utilization, and vibration during operation of the driving unit as the universal joint and the spline are integrally formed of a metal material. It has the effect of reducing the noise and improving the satisfaction of passengers and passengers.

Moreover, the integrated middle joint according to the present invention improves work convenience by integrally forming a universal joint and a spline with a metal material, thereby maximizing operator satisfaction and preventing safety accidents caused by work, and reducing the manufacturing cost of the driving unit and It has the effect of reducing manufacturing time, manufacturing time and manufacturing cost of the integrated middle joint, and promoting the convenience of workers by omitting unnecessary processes, thereby reducing the production cost and installation cost of the middle joint to increase exports and increase demand. have.

In addition, the integrated middle joint according to the present invention increases the lifespan by integrally forming the universal joint and the spline with a metal material, minimizes damage or failure, reduces vibration, reduces maintenance costs, and prevents wasted resources, thereby reducing environmental protection. There is an effect that can protect you.

1 shows a front view of a chair assembly equipped with an integrated middle joint according to the present invention.
2 is a front view showing a state in which the cover part and the mounting part are removed in FIG. 1.
3 is a front view showing a state in which the chair part is removed in FIG. 2.
4 is a perspective view of the driving unit with the upper plate removed.
5 shows a side view of the driving part with the upper plate removed.
6 shows a perspective view of an integral middle joint according to the present invention.
7 shows a perspective view of a universal joint of an integral middle joint according to the present invention.
8 shows a partial cross-sectional view of a spline of an integral middle joint according to the present invention.

Hereinafter, with reference to the drawings of the integral middle joint according to an embodiment of the present invention will be described in detail. The following embodiments are provided as examples in order to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention is not limited to the embodiments described below and may be embodied in other forms. In addition, in the drawings, the size and thickness of the device may be exaggerated for convenience. Throughout the specification, the same reference numbers indicate the same elements.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments make the disclosure of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have it, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification. In the drawings, the sizes and relative sizes of layers and regions may be exaggerated for clarity of description.

The terms used in this specification are for describing exemplary embodiments, and therefore, are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprise" and/or "comprising" refers to the presence of one or more other components, steps, actions and/or elements, and/or elements, steps, actions and/or elements mentioned. Or does not exclude additions.

1 shows a front view of a chair assembly in which an integrated middle joint is installed according to the present invention, FIG. 2 shows a front view of a state in which a cover part and a mounting part are removed from FIG. 1, and FIG. 3 is a state in which the chair part is removed from FIG. Show the front view. 4 is a perspective view of the driving unit with the upper plate removed, and Fig. 5 is a side view of the driving unit with the upper plate removed. 6 shows a perspective view of an integral middle joint according to the present invention, FIG. 7 shows a perspective view of a universal joint of an integral middle joint according to the present invention, and FIG. 8 is a partial partial cross-sectional view of a spline of the integral middle joint according to the present invention. Show.

The definitions of terms used below are as follows. "Horizontal direction" means the transverse direction in the same member, that is, the longitudinal direction in Figs. 1 to 8, and the "vertical direction" means the longitudinal direction in the same member while being perpendicular to the horizontal direction, that is, the width direction in Figs. It means, and "height direction" means a vertical direction in the same member while perpendicular to the horizontal direction and the vertical direction, that is, the vertical direction in FIGS. 1 to 8. In addition, upward (upper) means an upward direction in the "height direction", that is, an upward direction in FIGS. 1 to 8, and downward (lower) means a downward direction in the "height direction", that is, in FIGS. 1 to 8 It means the direction facing down. In addition, the inner side (inner) means the side relatively close to the center of the same member, that is, the inner side in Figs. 1 to 8, and the outer side means the side relatively far from the center of the same member, that is, the outer side in Figs. 1 to 8 do. In addition, "forward" means the side facing the front that can be seen by the front gaze of the spectator or passenger, and "rear" means the back of the gaze of the spectator or passenger.

An integrated middle joint 100 according to the present invention will be described with reference to FIGS. 1 to 8. The integrated middle joint 100 according to the present invention is installed in a driving unit such as a 3D movie theater or a 4D movie theater or a playground equipment or a virtual reality device, or a game device.

As shown in FIGS. 1 to 2, the special effect tangible chair assembly 10 installed in a 3D movie theater or a 4D movie theater includes a plurality of actuators 33 installed between the lower plate 31 and the upper plate 32, and A drive unit 30 capable of implementing various motions by each motor 34 operating a plurality of actuators is provided. In addition, such a driving unit may further include an integral middle joint 100 if necessary to control unwanted motion of the chair assembly. In addition, the drive unit 30 is provided with a motor 34 for operating each actuator (33).

The lower plate 31 is installed on the ground or on the floor of the building. Although not necessarily limited thereto, the lower plate 31 may be fastened to the floor structure of a 3D movie theater or a 4D movie theater by a known fastening means such as a bolt or an anchor bolt.

The upper plate 32 is fastened to the upper plate 32 installed to be spaced upward from the lower plate.

A plurality of actuators 33 are installed between the lower plate and the upper plate. In FIGS. 2 to 4, three first, second, and third actuators 33 are installed between the lower plate 31 and the upper plate 32. It is possible to implement a three degree of freedom motion (roll, pitch, heave) according to the form in which the three actuators 33 are driven by each motor 34. That is, when implementing a roll motion, either the second actuator or the third actuator rises, and an actuator that does not rise among them descends. In the case of implementing the pitch motion, the second and third actuators all rise and the first actuator descends, or the second and third actuators all descend and the first actuator rises. When implementing a heave motion, all of the first, second, and third actuators rise or all three actuators fall. Although it is shown that three actuators are installed in FIGS. 2 to 4, it is not necessarily limited thereto, and more various actuators may be installed according to the degree of freedom required for driving.

As shown in Figs. 2 to 4, the first, second, and third actuators of the driving unit according to the preferred embodiment of the present invention are located in a triangular shape. That is, as shown in FIGS. 2 to 4, the first actuator is located at the vertex of the triangle, and the second and third actuators are located on the base of the triangle. The first, second, and third actuators are provided with first, second, and third motors fixedly installed on the lower plate 31, respectively. Although not necessarily limited thereto, the first, second, and third motors 34 are coupled to the lower plate 31 by bolting or welding. Although not necessarily limited thereto, the motor 34 may be formed of a servo motor whose operation is precisely controlled according to a command from the controller.

The middle joint 100 includes a universal joint 200 and a spline 300. That is, a universal joint is integrally formed on the spline. In addition, the integrated middle joint 100 is installed between the lower plate and the upper plate. That is, the lower end of the integrated middle joint is fixedly installed to the lower plate with bolts 60, and the upper part is coupled and installed to the upper plate by a universal joint.

In addition, as shown in FIGS. 2 to 4, the integrated middle joint is located inside a triangle in which the first, second, and third actuators 21, 22, and 23 are arranged. Although not necessarily limited thereto, the integrated middle joint may be installed to be located at the center line in the vertical direction of the first actuator, and may be fixedly installed on the lower plate so as to be located on the same line as the second actuator and the third actuator in the horizontal direction.

The universal joint and spline of the integrated middle joint 100 are formed of a metal material.

The chair part 20 is installed above the driving part 30. The chair portion 20 includes a backrest portion 21, a seating portion 22, and an armrest portion 23. A groove for storing a beverage may be formed in a part of the armrest. According to the driving of the driving unit 30, two or four chair units 20 are integrated on the upper part of the driving unit 30 in order to deliver motion picture information and integrated motion to the audience, and to reduce installation and maintenance costs. Can be installed on. In addition, if necessary, in the case of a game device or a virtual reality device, one or two or more to 10 or less may be integrally installed on the top of the driving unit.

Between the lower plate 31 and the upper plate 32, a pipe or device for spraying water or air to the viewers is installed depending on the state of the movie, and these pipes are connected to the water supply source and the air supply source. do. Such water or air is injected to the viewers under the control of a control unit (not shown in the drawing) in the operating room of the screening system through a nozzle installed in the backrest part 21 or the seating part 22.

The front between the lower plate 31 and the upper plate 32 of the chair assembly 10 to protect the above-described various devices installed between the lower plate 31 and the upper plate 32 and to facilitate the convenience of visitors. , Both sides, and a cover portion 40 made of a metal plate or a wooden plate is detachably installed on the rear.

As the cover part 40 is detachably installed on the front, both sides, and the rear between the lower plate 31 and the upper plate 32 of the self-assembly 10, maintenance of the driving unit, etc. is easy, and the operator's Convenience can be pursued.

When the chair assembly 10 is driven by the driving unit 30, in order to promote the safety of the visitors and increase the convenience of the visitors, the mounting portion 50 is installed on the front cover of the chair assembly 10. That is, the spectator or passenger can maximize the convenience of the spectator or occupant and promote safety by placing a leg on the mounting portion in a state in which the spectator or passenger is seated in the seating portion of the chair. In addition, since such a mounting portion is detachably installed on the front cover, space utilization can be maximized.

Therefore, the integrated middle joint according to the present invention maximizes the stiffness of the middle joint by integrally forming the universal joint and the spline with a metal material to prevent damage or damage to the middle joint as well as damage or damage to other equipment. It improves the stability and reliability of the joint, prevents safety accidents that occur to occupants or visitors, and reduces the overall weight of the integrated middle joint installed on the driving unit, thereby miniaturizing and compacting the driving unit and the chair assembly having the driving unit. By maximizing space utilization, and reducing vibration or noise during operation of the driving unit, satisfaction of occupants and visitors can be improved.

As shown in FIGS. 4 to 6 and 8, the spline 300 of the integrated middle joint 100 according to the present invention includes a support 310, a shaft 320, an elastic part 330, and a support part ( 340).

The support 310 is fixedly installed on the lower plate in a disk shape. That is, the support portion has a predetermined thickness, and the cross section is formed in the form of a disk.

5 and 6, the support portion 31 of the spline 300 of the integrated middle joint 100 according to the present invention is separated from the center of the support portion at a predetermined angle along the outer peripheral surface of the support portion upper and lower portions It includes a plurality of coupling grooves formed through.

In addition, as shown in Figures 2 to 5, the integrated middle joint 100 according to the present invention is inserted into each of the coupling grooves formed in the support of the spline and penetrated through the lower plate to be coupled to the lower part by bolts 60. It is fixedly installed detachably on the plate. Accordingly, it is possible to easily replace the integral middle joint in case of maintenance or failure, promote the convenience of the operator, reduce maintenance cost and time, and prevent safety accidents in advance.

The shaft part 320 is formed extending in the height direction on the upper end of the support part.

In addition, as shown in FIGS. 4, 6, and 8, the shaft portion 320 of the spline 300 of the integral middle joint 100 according to the present invention is at a predetermined angle from the center of the shaft portion along the circumferential surface of the shaft portion. And a plurality of grooves 321 spaced apart from each other and recessed to a predetermined length along the height direction of the shaft part. Accordingly, when the driving unit is driven, the chair unit can be prevented from being separated and supported stably, thereby improving the stability and reliability of the integrated middle joint and maintaining rigidity.

The support part 340 is formed in a disk shape on the upper end of the shaft part. That is, the support portion has a predetermined thickness, and the cross section is formed in a disk shape. In addition, in the integrated middle joint 100 according to the present invention, as the spline 300 and the universal joint 200 are integrally formed, a part of the lower base portion of the universal joint to be described later forms a support portion.

In this way, as the support unit 340 constitutes a part of the spline and a part of the universal joint, the integrated middle joint is designed to be miniaturized and compact unlike the conventional middle joint, so that the overall chair assembly or various amusement equipment or virtual reality devices, or games It is possible to reduce the manufacturing cost and installation time by miniaturizing and compacting the driving part of the device, and maximize the convenience of the operator through transportation convenience.

The elastic part 330 is installed between the support part and the support part to elastically support the support part and the support part while surrounding the circumferential surface of the shaft part. In other words, this elastic part 330 supports the load transmitted from the upper plate by driving the actuator according to the movie content to prevent damage or damage while maintaining the rigidity of the integrated middle joint to maximize the lifespan, and maintenance cost Can be saved. Although not necessarily limited thereto, the elastic portion 330 may be formed of a coil spring.

2 to 7, the universal joint 200 of the integral middle joint 100 according to the present invention includes a pair of base portions 210 and 240, a connection portion 220, and a coupling portion 230. Include.

The upper base part 210 and the lower base part 240 are installed in a pair so as to correspond to the side transmitting the rotational force and the side receiving the rotational force. That is, when the upper base portion 210 is coupled to the side transmitting the rotational force, the lower base portion 240 is installed on the side receiving the rotational force. Conversely, when the upper base portion 210 is installed on the side that receives the rotational force, the lower base portion 240 is installed on the side that transmits the rotational force.

In addition, as described above, a part of the lower base portion 240 forms a support portion constituting a spline.

The upper base part and the lower base part are formed in the same shape, and are installed in conjunction with different sides to realize motion of 3 degrees of freedom or more, and rotate through the connection part.

The upper base portion and the lower base portion each have a predetermined thickness and include a disk-shaped body portion formed of a metal material and an auxiliary portion extending parallel to each other while facing each other, so as to be coupled to a connection portion and a coupling portion. Although not necessarily limited thereto, the upper base portion and the lower base portion are generally formed in a "C" shape.

The connection part 220 is coupled to the upper base part and the lower base part so as to transmit rotational force while the upper base part and the lower base part are inclined at a predetermined angle.

The connection part is formed in a cross shape as a whole, so that the middle joint can realize a motion of at least 3 degrees of freedom. Although not necessarily limited thereto, the connection portion is formed of a metal material to maintain constant rigidity and durability.

The coupling part 230 rotatably couples the connection part 220 to the upper base part 210 and the lower base part 240.

The auxiliary portion of the upper base portion and the lower base portion of the base portion of the universal joint of the integral middle joint according to the present invention includes a step portion, an insertion hole, and a coupling hole.

The stepped portion is formed to be stepped at the outer tip of the auxiliary portion. That is, the stepped portion is formed to have a thickness less than that adjacent to the body portion of the auxiliary portion at the end of the outer surface of the auxiliary portion. In this way, as the stepped portion is formed, the weight of the auxiliary portion is reduced, and finally, weight reduction of the integrated middle joint can be achieved. In addition, it is possible to reduce noise and vibration due to motion driving of the integrated middle joint by preventing mechanical interference while implementing a smooth motion of 3 degrees of freedom or more of the integrated middle joint by the stepped portion. Specifically, when the upper base and lower base of the integrated middle joint rotate around the cross-shaped cross axis of the connection part by the stepped part, the bearing part coupled to each shaft end rotates, preventing friction from occurring with the auxiliary part. It is possible to reduce the occurrence of over-vibration, and improve the rigidity and durability of the auxiliary unit according to this coupling structure.

The insertion hole is formed through a part of the stepped portion to accommodate the axial end of the connecting portion to be described later. That is, the shaft end of the connecting portion is inserted into the insertion hole.

The coupling holes are formed symmetrically while facing each other around the insertion hole to couple the coupling portion to the outside of the stepped portion. That is, the coupling hole is a space in which a bolt for coupling the bearing portion of the connection portion to be described later is fastened. Specifically, when the shaft end of the connection part is inserted into the insertion hole, the bearing part is then fastened to the shaft end, and the bearing part is connected to the receiving hole of the coupling part, which will be described later, to couple and fix the connection part to the insertion hole while preventing the bearing part from being separated from the shaft end. The bolt is inserted into the ball and the coupling hole.

In addition, as the coupling holes are formed to be symmetrical while facing each other, it is possible to minimize vibration and noise generation by maintaining a weight balance when driving a motion of 3 degrees of freedom or more, and to reduce maintenance costs by being firmly coupled.

In addition, the coupling portion of the universal joint of the integrated middle joint according to the present invention includes a body portion and a wing portion.

The body portion is formed extending in the horizontal direction to be tapered in the direction of both side ends. In addition, although not necessarily limited thereto, the body portion is formed of a plate-shaped metal material. By this body portion, the bearing portion is firmly coupled to the insertion hole, and the coupling is prevented from being released when a motion of 3 degrees of freedom or more is driven, thereby improving the reliability and stability of the simulator middle joint.

The wing portion is formed to extend at both side ends of the body portion.

Each wing portion includes an edge portion extending from both ends of the wing portion to be bent at a predetermined angle in a vertical direction of the body portion, and a receiving hole formed through a portion of the wing portion. As the bolt sequentially penetrates through the receiving hole, the connection hole, and the coupling hole, the connection part and the bearing part of the connection part are firmly coupled to enable rotation.

In addition, it is possible to improve the reliability and safety of the integrated middle joint by preventing the bolt from being separated from the receiving hole, the connecting hole, and the coupling hole when the motion of the integrated middle joint is driven by the rim.

As described above, the integrated middle joint according to the present invention improves work convenience by integrally forming a universal joint and a spline with a metal material, thereby maximizing the satisfaction of the operator and preventing safety accidents due to work in advance, and It is possible to reduce manufacturing time, manufacturing time and manufacturing cost of the integrated middle joint, and improve the convenience of workers by omitting unnecessary processes, thereby reducing the production cost and installation cost of the middle joint, thereby increasing exports and increasing demand.

In addition, the integrated middle joint according to the present invention increases the lifespan by integrally forming the universal joint and the spline with a metal material, minimizes damage or failure, reduces vibration, reduces maintenance costs, and prevents wasted resources. Can protect.

In the detailed description of the present invention described above, it has been described with reference to preferred embodiments of the present invention, but those skilled in the art or those of ordinary skill in the relevant technical field of the present invention described in the claims to be described later It will be understood that various modifications and changes can be made to the present invention without departing from the spirit and technical scope. Therefore, the technical scope of the present invention should not be limited to the content described in the detailed description of the specification, but should be determined by the claims.

10: chair assembly, 20: chair part,
30: drive part, 40: cover part,
50: mounting portion, 60: bolt,
100: integral middle joint, 200: universal joint,
210: upper base part, 220: connection part,
230: coupling portion, 240: lower base portion,
300: spline, 310: support,
311: coupling groove, 320: shaft,
321: groove portion, 330: elastic portion,
340: support part.

Claims (7)

In a driving device for experiencing special effects installed in a 3D movie theater or 4D movie theater or a playground equipment or a virtual reality device including a driving unit, a backrest unit and a seating unit, and including a chair unit installed above the driving unit and a cover unit, ,
The driving unit,
A lower plate installed on the ground or the floor of a building;
An upper plate installed to be spaced upward from the lower plate;
A plurality of actuators installed between the lower plate and the upper plate; And
Including; a middle joint having a universal joint and a spline, and installed between the lower plate and the upper plate,
An integral middle joint, characterized in that the universal joint and the spline are integrally formed.
The method of claim 1,
The universal joint and the spline of the integrated middle joint, characterized in that formed of a metal material.
The method of claim 2,
The spline of the integral middle joint,
A support portion fixedly installed in a disk shape on an upper portion of the lower plate;
A shaft portion extending in a height direction on an upper end of the support portion;
A support portion formed in a disk shape on an upper end of the shaft portion; And
And an elastic portion disposed between the support portion and the support portion so as to elastically support the support portion and the support portion while surrounding the circumferential surface of the shaft portion.
The method of claim 3,
The shaft portion of the spline of the integral middle joint,
And a plurality of grooves spaced at a predetermined angle from the center of the shaft portion along the circumferential surface of the shaft portion and recessed to a predetermined length along the height direction of the shaft portion.
The method of claim 4,
The support portion of the spline of the integral middle joint,
An integrated middle joint further comprising: a coupling groove formed through an upper end and a lower end of the support so as to be spaced apart from the center of the support at a predetermined angle along the outer peripheral surface of the support.
The method of claim 5,
The integral middle joint,
An integral middle joint, characterized in that it is fixedly installed to the lower plate by bolts inserted into each of the coupling grooves formed in the support and coupled through the lower plate.
The method of claim 6,
The universal joint of the integral middle joint,
A base unit that is coupled and installed in a pair so as to correspond to the side transmitting the rotational force and the side receiving the rotational force;
A connection portion coupled to the pair of base portions to transmit rotational force while the pair of the base portions are inclined at a predetermined angle; And
An integrated middle joint comprising: a coupling portion for fixedly coupling the connection portion to the base portion so as to be pivotable.

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