KR102188183B1 - Omnidirectional stand chair - Google Patents

Abstract

The present invention relates to an omni-directional movable grandstand so that the multi-stage folded grandstand body can be easily lifted and moved in all directions front-to-back, left-to-right, and forward-to-back, thereby increasing transportation convenience.
In the omnidirectional movable grandstand according to the present invention, a plurality of stages are maintained in a multi-stage folded state and then deployed in a series of multi-stage sliding-out only when used, wherein each stage is supported from the bottom by a vertical support and the vertical At the lower end of the support, a lower support on which a moving wheel is installed is connected to enable multi-stage sliding movement in the front and rear direction, and a rear support frame is installed across the lower support of the fixed stage among the stages, and the rear of the grandstand body A fixed frame having a rear end fixed to the support frame; an omnidirectional transport unit installed at a lower surface of the fixed frame so as to be able to move upward and with an omnidirectional wheel capable of running in all directions; and the fixed frame and the front It characterized in that it comprises a cylinder mechanism interposed between the directional transport units to move the forward transport unit up and down with respect to the fixed frame.

Description

Omnidirectional movable grandstand {OMNIDIRECTIONAL STAND CHAIR}

The present invention relates to a grandstand, and more particularly, to a retractable grandstand that is folded in multiple stages in normal times and maintained in a stored state, and is deployed as a plurality of grandstand chairs are sequentially slid and drawn out in multiple stages only when used. .

In general, a theater, a performance hall, a gymnasium, a stadium, or an auditorium, etc., are provided in a stepped manner so that you can sit and watch a play, a movie, a performance, an athletic event, etc., and a plurality of grandstand chairs are provided in the stepped seat. It is installed according to the heat.

Among these grandstands, the retractable grandstands are configured such that the grandstand chairs composed of a plurality of stages are sequentially deployed or folded to enable efficient use of space in places such as a gymnasium, auditorium, various performance halls, halls, and event halls.

Retractable grandstands are normally folded in multiple stages and kept in a stored state, and only when used, the multi-level grandstand chairs are sequentially slid and unfolded in multiple stages, thereby securing space for use during normal use. The original function of the grandstand where the people of the audience can sit may be provided.

As an example of such a retractable grandstand, Korean Utility Model Publication No. 20-1999-0034948 (published on September 6, 1999) includes a fixed-side grandstand on which a plurality of sheets are installed, and a plurality of seats, respectively, and the lower portion of the fixed-side grandstand is installed. The movable-side grandstand of a plurality of floors overlapped with a plurality of floors, a driving means installed on the movable-side grandstand of the lowermost floor, a locking means configured on the fixed-side grandstand and the movable-side grandstand of each floor, and Disclosed is a retractable grandstand, characterized in that it comprises guiding means installed at a plurality of positions on the rear upper side of the frame of the movable grandstand.

In addition, Korean Patent Publication No. 10-2004-0084070 (published on Oct. 6, 2004) includes a retractable grandstand in which several movable grandstands stepped from the standard grandstand can appear and operate. A connecting pipe protruding on the same line as a horizontal bar, and a roller connected to the end of the connecting piece that is inclined upward and forward from the supporting part, and the supporting part is inserted into the connecting tube, and through the shaft hole skewed to the rear, the connecting tube is provided with a shaft bolt. A guide bracket composed of a connected height adjustment roller, a parallel guide part and a locking part protruding upward, and connected and fixed through a shaft bolt on the outside of the connection tube, and a guide bracket that is fastened to the connection tube through the through hole of the guide bracket, and adjusts the height when tightened. Disclosed is a retractable grandstand comprising a height adjustment bolt that adjusts the height of the roller by rotation of the roller, and an adjustment bolt that is fastened to a support piece of a vertical support and contacts the bottom of a horizontal bar.

In the case of the above-described retractable grandstand, it must be easy to move in a multi-stage folding state. In this case, the wheels that guide each stage to be multi-folded are arranged in a straight line along the multi-stage folding direction having a relatively long width to change direction. As the turning radius of the city increases, it is difficult to change directions within a narrow space, and it is difficult to pass through the doors of a relatively narrow gymnasium, auditorium, various performance halls, halls, and event venues.

As a solution to this problem, Korean Patent Publication No. 10-2013-0084034 (2013.07.24) discloses a support for supporting a retractable grandstand, a fixed frame coupled with the support, and the fixed frame rotatable. And a rotating frame that is fastened so as to guide the change of the moving direction of the retractable grandstand, and the support part is in contact with a coupling part coupled with the fixed frame and the retractable grandstand to support the load of the retractable grandstand. Disclosed is a moving direction switching guide device for a grandstand having a contact rotating part fastened to the coupling part so as to be rotatable based on the coupling part.

In addition, Korean Patent Publication No. 10-2013-0084035 (published on 24 July 2013) is a grandstand transport device that is connected to the above-described guide device for changing the direction of movement of the grandstand to generate driving force for transport. There is disclosed a grandstand transport device comprising a driving motor providing a driving motor and a magnetic clutch connected to the driving motor to mediate the driving force to the grandstand end, and to disconnect the connection with the driving motor when the driving motor is stopped. .

However, in the case of the above-described grandstand transport device, a pallet-type support for lifting the multi-folded grandstand body for transport of the multi-folded grandstand body, and a vehicle-type transport device for transporting the grandstand body connected to the pallet-type support are provided. Because it is necessary, there is a problem that the transport operation of the grandstand is very cumbersome.

Patent Document 1: Korean Utility Model Publication No. 20-1999-0034948 (published on September 6, 1999) Patent Document 2: Korean Patent Publication No. 10-2004-0084070 (published on October 6, 2004) Patent Document 3: Korean Patent Publication No. 10-2013-0084034 (2013.07.24)

Therefore, the present invention was conceived to solve the problems of the prior art, and the multi-stage folded grandstand body can be easily lifted and can be easily moved forward, backward, left, right, and forward, thereby increasing transportation convenience. It is based on the task of providing an omnidirectional movable grandstand.

In the above-described object of the present invention, in a grandstand that is developed while a plurality of stages are maintained in a multi-stage folded state and then sequentially slid and drawn out in multiple stages only when used, each stage is supported from the bottom by a vertical support and the vertical support A lower support on which a moving wheel is installed is connected to enable multi-stage sliding movement in the front and rear direction, and a rear support frame is installed across the lower support of the fixed end of each stage, and the rear support of the grandstand body A fixed frame having a rear end fixed to the frame; an omnidirectional conveying unit installed at a lower surface of the fixed frame so as to be able to move upwardly and having an omnidirectional wheel capable of running in all directions; the fixed frame and the omnidirectional It is achieved by providing an omnidirectional movable grandstand, characterized in that it comprises a cylinder mechanism interposed between the transport units to move the forward transport unit up and down with respect to the fixed frame.

According to a preferred feature of the present invention, the fixing frame is provided with downwardly bent plates on both sides, and the downwardly bent plate is formed with a guide hole for guiding the upward movement of the omnidirectional transport unit.

According to a preferred feature of the present invention, the omnidirectional transport unit includes a base frame in which a guide protrusion fitted into the guide hole is protruded, and a connection support plate integrally connected to both ends of the base frame and a support plate protruding at one side thereof. , It includes an omnidirectional wheel that is rotatably installed at the bottom of the base frame.

According to a preferred feature of the present invention, the omnidirectional wheel is formed of a heavy duty caster.

According to a preferred feature of the present invention, the cylinder mechanism is formed of a hydraulic cylinder seated and fixed on a support plate of the connection support plate.

According to the omnidirectional movable grandstand according to the present invention, the multi-folded grandstand body is easily lifted while the omnidirectional transport unit is moved downward with respect to the multi-folded grandstand body by the operation of the hydraulically operable cylinder mechanism. There is an advantage in that the convenience of transportation is increased as the multi-stage folding seat body can be easily moved forward, backward, left, and right directions by an omni-directional wheel provided in the omni-directional transport unit.

1 is a bottom perspective view of an omnidirectional movable grandstand according to an embodiment of the present invention when folded in multiple stages.
2 is an exploded perspective view of the omni-directional transport unit in the omni-directional movable grandstand according to an embodiment of the present invention.
3 is an operation diagram of an omni-directional transport unit in the omni-directional movable grandstand according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, this is for explaining in detail enough that a person of ordinary skill in the art can easily carry out the invention, and this does not mean that the technical spirit and scope of the present invention are limited.

The omni-directional movable grandstand according to an embodiment of the present invention is a retractable grandstand that is developed while being continuously slid and drawn out in multiple stages only when a plurality of stages 11 for the grandstand are normally folded in multi-stage state, 1 and 2, each end 11 is supported from the bottom by a vertical support 13 and a lower support 15 on which a moving wheel 17 is installed at the lower end of the vertical support 13 Is provided to be connected so as to be movable multi-stage sliding in the front and rear direction, and the rear support frame 19 is installed over the lower support 15 of the fixed end of each stage 11, and the grandstand body 10, the grandstand body ( A fixed frame 20 having a rear end fixed to the rear support frame 19 of 10), and an omnidirectional wheel 35 that is installed to be movable upward and downward on the lower surface of the fixed frame 20 and is capable of running in all directions. ) Is installed, and is interposed between the fixed frame 20 and the omni-directional transport unit 30 to move the omni-directional transport unit 30 up and down with respect to the fixed frame 20 It includes a cylinder mechanism 40 to let.

Here, the grandstand body 10 is to form a multi-stage folding frame for an omni-directional movable grandstand according to an embodiment of the present invention, itself to form a grandstand or to allow a plurality of grandstand chairs to be installed in multi-stage Each stage 11 has a configuration that is supported at a predetermined height from the bottom by each vertical support (13).

The vertical support 13 is connected to the lower end of each stage 11 for the grandstand and the lower end is connected to the lower support 15 to be described later, and two are installed spaced apart from each other for each stage 11.

In addition, at the lower end of the vertical support 13, a lower support 15 is provided in connection with a multi-stage sliding movement in the front and rear direction. The lower support 15 forms the lower base of each stage 11 and at the same time forms an installation frame of the movement wheel 17 for sliding movement of each stage 11 in the front and rear direction. It has a channel shape with an open bottom to be installed for easy installation.

In addition, the rear support frame 19 is installed over the lower support 15 of the fixed end, which does not slide back and forth among each end 11. The rear support frame 19 is a type of stopper that supports the rear surface of the lower support 15 provided at the moving end that slides back and forth among the steps 11 during multi-stage folding so that each end is no longer slid to the rear. At the same time as forming the role of forming the installation frame of the fixed frame 20 to be described later, it has a square bar shape extending long in the left and right direction.

The rear end of the fixed frame 20 is fixed to the rear support frame 19 of the above-described grandstand body 10. The fixed frame 20 is an omnidirectional transport unit so that the lower end of the omnidirectional wheel 35 of the omnidirectional transport unit 30 to be described later is positioned above or below the lower end of the moving wheel 17 of the grandstand body 10 It is a support guide that guides the Shanghai East in (30).

Downward bent plates 21 are provided on both sides of the fixed frame 20 so that the upright movement of the forward transport unit 30 can be guided by the fixed frame 20, and the forward transport unit 30 is provided on the downwardly bent plate 21. A guide hole 23 for guiding the upper and lower limits of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower limits of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower limits of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower limits of the upper and lower ends of the upper and lower ends of the upper and lower ends of the upper and lower limits be set through. In the guide hole 23 formed in the downwardly bent plate 21, the guide protrusion 31a of the omnidirectional transport unit 30 to be described later is fitted and coupled.

An omni-directional transport unit 30 is installed to be able to move up and down under the above-described fixed frame 20. The omni-directional transport unit 30 is to allow the multi-stage folded grandstand body 10 to be moved in all directions including front and rear, left and right, and is maintained in a state of being moved upward with respect to the fixed frame 20. When transporting the omnidirectional movable grandstand according to an embodiment of the invention, the multi-stage folded grandstand body 10 is slightly lifted to the top while moving downward with respect to the fixed frame 20 so that the lower end of the moving wheel 17 is ground. To be separated from

The omnidirectional transport unit 30 is integrally connected to the base frame 31 on which the guide protrusions 31a are protruding and formed into the guide hole 23, and the support plate 33a on one side thereof. The protruding connection support plate 33 may include an omnidirectional wheel 35 that is rotatably installed at the lower end of the base frame 31 and capable of running in all directions.

The base frame 31 is preferably installed side by side to be adjacent to each other and includes two square pipes having both ends integrally connected to each other by a connection support plate 33.

In addition, the connection support plate 33 corresponds to a support for installation of the cylinder mechanism 40 to be described later, and both ends of the base frame 31 having the form of two square pipes installed side by side are fixed integrally. A support plate (33a) on which the cylinder mechanism 40 is seated and installed on one side of the direct plate has a protrusion, and the vertical plate passes through a hydraulic pipe through which a fluid supply and discharge pipe for operating the cylinder mechanism 40 penetrates. The ball (33b) is formed through.

The omnidirectional wheel 35 is formed of a caster capable of rotating and rolling in all directions, and in particular, it is preferably formed of a high-load caster to support the overall load of the grandstand body 10. Casters are known in a variety of fields, including mobile carts and supermarket carts, and further detailed descriptions will be omitted here for the sake of simplicity of the specification.

A cylinder mechanism 40 is interposed between the above-described fixed frame 20 and the forward transport unit 30.

As the cylinder mechanism 40 changes the length between the fixed frame 20 and the omnidirectional conveying unit 30 through its own elongation or expansion, the omnidirectional conveying unit 30 is moved up and down with respect to the fixed frame 20. It serves to move, and the lower end corresponding to the cylinder is seated and fixed on the support plate 33a of the connection support plate 33, and the upper end corresponding to the piston is preferably formed of a hydraulic cylinder fixed to the fixing frame 20. Do.

3 is an operation diagram of an omni-directional transport unit in the omni-directional movable grandstand according to an embodiment of the present invention. Hereinafter, the upward movement of the omnidirectional conveying unit 30 by the cylinder mechanism 40 will be described with reference to FIGS. 1 to 3 as follows:

Normally, the cylinder mechanism 40 is maintained in an extended state, in this case, as shown in the upper drawing of FIG. 3, the omnidirectional transport unit 30 is maintained in a state moved upward with respect to the fixed frame 20. Accordingly, the lower end of the omnidirectional wheel 35 of the omnidirectional transport unit 30 is positioned at the same height as or above the lower end of the moving wheel 17 of the grandstand body 10. In this case, as the moving wheel 17 of the grandstand body 10 contacts the ground, each stage 11 of the grandstand body 10 may be deployed in multiple stages.

When transport is required in the state where the grandstand body 10 is folded in multiple stages, the cylinder mechanism 40 is extended by, for example, supply of hydraulic pressure, in this case, the omni-directional transport unit as shown in the lower drawing of FIG. As (30) is moved downward with respect to the fixed frame 20, the lower end of the omnidirectional wheel 35 of the omnidirectional transport unit 30 is lower than the lower end of the moving wheel 17 of the grandstand body 10 While being positioned, the grandstand body 10 is slightly lifted from the ground. In this case, as the omni-directional wheel 35 of the omni-directional transport unit 30 contacts the ground, the multi-stage folded grandstand body 10 may be moved and transported in any direction, front and rear, left and right.

Although the embodiments have been exemplarily described above, the fact that the present invention can be embodied in various forms without departing from the spirit and scope thereof is obvious to those of ordinary skill in the art. Accordingly, the above-described embodiments should be regarded as illustrative rather than restrictive, and all implementations within the scope of the appended claims and their equivalents will be included within the scope of the present invention.

10: Grandstand body
11: short
13: vertical support
15: lower support
17: moving wheel
19: back support frame
20: fixed frame
21: downward bending plate
23: guide ball
30: Omnidirectional transport unit
31: base frame
31a: guide protrusion
33: connection support plate
33a: support plate
33b: hydraulic pipe through hole
35: omnidirectional wheel
40: cylinder mechanism

Claims (5)

In the grandstands that a plurality of stages are maintained in a multi-stage folded state, and are unfolded by sequentially sliding and drawing out in multiple stages only when using,
Each stage 11 is supported from the bottom by a vertical support 13, and a lower support 15 on which a moving wheel 17 is installed is connected to the vertical support 13 so as to be multi-stage sliding movement in the front and rear direction. It is provided with a rear support frame (19) over the lower support (15) of the fixed end of each stage (11) is installed a grandstand body (10);
A fixed frame 20 having a rear end fixed to the rear support frame 19 of the grandstand body 10;
An omnidirectional transport unit (30) installed at a lower portion of the fixed frame (20) so as to be able to move upward and having an omnidirectional wheel (35) capable of driving in an omnidirectional direction on a lower surface; And
It characterized in that it comprises a cylinder mechanism (40) interposed between the fixed frame (20) and the forward transport unit (30) to move the forward transport unit (30) up and down with respect to the fixed frame (20). Omnidirectional movable grandstand.
The method according to claim 1,
The fixed frame 20 is provided with downwardly bent plates 21 on both sides, and the downwardly bent plate 21 has a guide hole 23 for guiding the upward movement of the omni-directional transport unit 30 through which it is formed. Features an omnidirectional movable grandstand.
The method according to claim 2,
The omnidirectional transport unit 30 is integrally connected to a base frame 31 on which a guide protrusion 31a fitted into the guide hole 23 is protruding, and is integrally connected to both ends of the base frame 31 and has a support plate on one side. (33a) An omnidirectional movable grandstand comprising a connection support plate (33) protruding and an omnidirectional wheel (35) rotatably installed at the lower end of the base frame (31).
The method of claim 3,
The omnidirectional wheel 35 is an omnidirectional movable grandstand, characterized in that formed of a high-load caster.
The method of claim 3,
The cylinder mechanism (40) is an omnidirectional movable grandstand, characterized in that it is formed of a hydraulic cylinder that is seated and fixed on the support plate (33a) of the connection support plate (33).

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