CN114080564A

CN114080564A - High-speed lifting type projector position system

Info

Publication number: CN114080564A
Application number: CN202080049917.4A
Authority: CN
Inventors: 裴允晟
Original assignee: Kenotong Korea Co ltd
Current assignee: Kenotong Korea Co ltd
Priority date: 2019-07-11
Filing date: 2020-07-09
Publication date: 2022-02-22
Anticipated expiration: 2040-07-09
Also published as: KR102031787B1; WO2021006660A1; CN114080564B

Abstract

The present invention relates to a projector position system, and more particularly, to a high-speed elevating type projector position system capable of elevating a position unit provided with a projector at high speed by elevating an elevating plate by a pair of ball screws and elevating a lifting plate connected to a front surface of the elevating plate by a rack and a pinion.

Description

High-speed lifting type projector position system

Technical Field

Background

Digital cinema has three meanings: movies including computer graphics, movies of digital production and editing, and movies of digital projection and distribution. Since the mid 1970 s, digital movies that have been formally expanded and developed in hollywood as an extension of established business-oriented aesthetics have become widespread in almost all types. Digital cinema presents a cognitive problem, in particular a realistic problem of movies, in terms of reference to reality.

Digital technology has really been applied to movies since the 1990's and has become the most important factor in each stage of movie planning, production, distribution, showing and the like. Since a movie is a highly technology-dependent medium, the production process is complicated, and almost every stage from planning to showing or even marketing involves digital technical elements, and thus each person using this term refers only to a specific field or element of the movie, so there is some confusion in defining the concept, but digital movies generally have three uses.

First, in terms of content, a digital movie refers to a "movie in which content includes a Computer-Generated image (CGI) created using digital technology, particularly, Computer Graphics (CG) and digital synthesis (compositing) or other technologies" (Manovich, 2001).

Second, in the transmission process, digital cinema is not distributed in the form of prints for theaters and is shown by a conventional projector, but "cinema distributed by digital transmission means (in digital cinema) such as satellite, optical cable, optical package, etc.

Third, in the production method, the digital cinema means "a low-cost movie produced by a small number of producers using small and inexpensive digital photographing and editing equipment".

In order to show such Digital cinema, a Digital projector (Digital Light Processing) must be used at the cinema.

In such a digital projector (DLP), film production itself is performed by shooting and cutting using a 35mm film as in the past, but after a document is completed, it is converted into digital information by a digital copying machine called telecine (telecine), transferred to a magnetic tape or a digital disk, and then displayed on a screen by the digital projector, so to speak, in the same manner as a CD or DVD player.

On the other hand, since the position of the projection room in the theater needs to be higher than the auditorium, a separate projection room must be provided behind the auditorium, and thus there is no doubt a limitation in space utilization depending on the design of the theater. That is, there is a disadvantage that the availability of space is significantly reduced.

In order to solve these problems, the present applicant disclosed a projector mount system in Korean patent laid-open publication No. 10-2016-.

As shown in fig. 1 and 2, the projector mount system includes: a set unit 100 provided to provide a space for installing a projector 102 at an upper rear portion of an auditorium of a movie theater; a lift unit 200 supporting the booth unit 100 and configured to lift the booth unit 100 to maintain the projector 102; wherein the lifting unit 200 includes: a base frame 210 provided on a floor adjacent to a wall W behind an auditorium of a movie theater; a vertical frame 220 erected on the left and right sides of the base frame 210; an upper frame 230 provided at an upper portion of the vertical frame 220; a screw shaft 240 vertically installed and rotated on the spot such that both ends thereof are supported at the center of the upper frame 230 and the center of the base frame 210; a driving motor 250 provided to be able to rotate the screw shaft 240; a screw guide 260 provided on the screw shaft 240 rotated by the driving motor 250 and moving in the up-down direction; and a lifting member 270 provided on the screw guide 260 and moving in the up-down direction together with the screw guide 260, and fixing the machine position unit 100 to lift the machine position unit 100; wherein the lifting member 270 includes: a fixing portion 272 capable of fixing the machine station unit 100; a support portion 274 integrally formed at one end of the fixing portion 272 and fixable to the screw guide 260; and

guide rollers

276a and 276b rotatably provided at both ends of the support portion 274 at their original positions and guiding the elevation while rolling along the vertical frame 220 when the elevation member 270 is elevated; the

guide rollers

276a and 276b are disposed at upper and lower portions of both ends of the support 274 at a certain interval, and are disposed to contact and be guided by one surface of the vertical frame 220 and an inner surface of the vertical frame 220 perpendicular to the one surface.

Such a conventional projector mount system can operate stably in terms of stability and accuracy, but is required to have speediness for quick maintenance.

Further, in such a conventional projector position system, an inner panel is provided at the front of the frame, and a brush is provided at the elevating path so as not to be exposed to the outside, but since it is partially exposed, it is necessary to remove the exposed portion and enhance the aesthetic structure.

Disclosure of Invention

The present invention has been made in an effort to provide a high-speed elevating type projector position system in which an elevating plate is elevated by a pair of ball screws, and an elevating plate connected to a front surface of the elevating plate is elevated by a rack and a pinion, thereby enabling a position unit provided with a projector to be elevated at a high speed.

In addition, the invention provides a high-speed lifting type projector position system, wherein a sliding door is arranged in front of a frame, the upper surface of the sliding door is meshed with the lower surface of a lifting plate through a gear, the sliding door is prevented from being opened randomly, so that the exposed part is removed to enhance the aesthetic feeling, the occurrence of safety accidents is prevented, and foreign matters can be prevented from entering the frame.

To achieve the above object, the present invention relates to a high-speed elevating type projector mount system comprising: a machine position unit which is arranged to provide a space for installing a projector at the rear upper part of the cinema auditorium; the main frame is fixedly arranged on the rear side wall of the cinema auditorium in a rectangular shape; a pair of ball screws vertically disposed on the main frame and rotated by a first forward and reverse rotation motor disposed at a lower end of the main frame; a lifting plate, both ends of which are formed with connection holes in the vertical direction, which are connected with the pair of ball screws through screws, and which is lifted along with the rotation of the pair of ball screws, and the center of the front surface of which is formed with a rack along the longitudinal direction; and a lifting plate which is connected to the front surface of the lifting plate, has a pinion engaged with the rack and a second forward and reverse rotation motor for rotating the pinion, and has a pair of horizontal supporting frames for fixing the projector on the front surface.

Here, the high-speed elevating type projector mount system is configured by installing a push-pull type automatic door in front of the main frame.

In addition, here, a fixing groove is provided on the upper surface of the automatic door.

In addition, here, the horizontal support frame of the lifting plate is made of open-bottomed section steel, and further includes: the main supporting frame is fixed at one end of the lifting plate, and guide pins are arranged on two sides of the outer side of the other end of the main supporting frame; the lower support frame is made of profile steel with an open upper surface, one end of the lower support frame surrounds the bottom of the main support frame, one end of the lower support frame is hinged with the main support frame, the other end of the lower support frame is provided with a guide hole connected with a guide pin of the main support frame, and the bottom surface of the lower support frame is provided with a fixing protrusion connected with a fixing groove of the automatic door; and an electric cylinder for lowering the lower support frame from the main support frame and fixing the fixing protrusion of the lower support frame to the fixing groove of the automatic door.

In addition, here, steps for connecting the pair of ball screws in a vertical direction are formed at both side surfaces of the elevation plate, a trapezoidal guide rail is formed at an inner side surface of each step, and the elevation plate is provided with a connection protrusion for connecting the guide rails.

Here, the pair of ball screws are provided at upper and lower ends thereof with first limit switches for stopping the lifting plate at a fixed position.

In addition, here, the rack is provided at upper and lower ends thereof with a second limit switch for stopping the lift plate at a fixed position.

Effects of the invention

According to the present invention, the elevating plate is elevated by a pair of ball screws, and the elevating plate connected to the front surface of the elevating plate is elevated by the rack and the pinion, so that the machine station unit provided with the projector can be elevated at a high speed, noise can be reduced, and the working time can be reduced by rapidly elevating the projector.

In addition, according to the invention, the sliding door is arranged in front of the frame, the upper surface of the sliding door is meshed with the bottom surface of the lifting plate through the gear, and the sliding door is prevented from being opened randomly, so that the exposed part is removed to enhance the aesthetic feeling, safety accidents can be prevented in advance, and the effect of preventing foreign matters from entering the frame is achieved.

Drawings

Fig. 1 and 2 are views of a conventional projector mount system.

Fig. 3 is a schematic structural view of a high-speed elevating type projector position system according to the present invention.

Fig. 4 is a side view of fig. 3.

Fig. 5 is a partially enlarged perspective view showing a connection relationship between the lifting plate and the lifting plate according to the present invention.

Fig. 6 is a partially enlarged perspective view of the horizontal support frame structure according to the present invention.

Fig. 7 to 10 are operation explanatory views for explaining the operation of the high-speed elevating type projector mount system according to the present invention.

Best mode for carrying out the invention

In a preferred embodiment of the high speed elevating projector position system according to the present invention, the system comprises: a machine position unit which is arranged to provide a space for installing a projector at the rear upper part of the cinema auditorium; the main frame is fixedly arranged on a wall behind an auditorium of a cinema in a rectangular shape; a pair of ball screws vertically disposed on the main frame and rotated by a first forward and reverse rotation motor disposed at a lower end of the main frame; a lifting plate, both ends of which are formed with connection holes in the vertical direction, which are connected with the pair of ball screws through screws, and which is lifted along with the rotation of the pair of ball screws, and the center of the front surface of which is formed with a rack along the longitudinal direction; and a lifting plate which is connected to the front surface of the lifting plate, has a pinion engaged with the rack and a second forward and reverse rotation motor for rotating the pinion, and has a pair of horizontal supporting frames for fixing the projector on the front surface.

Detailed Description

The construction of the high-speed elevating type projector mount system according to the present invention will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms described later are terms defined in consideration of functions in the present invention, and may vary according to the intention or practice of users and operators. Therefore, it should be defined according to the contents throughout the present specification.

Fig. 3 is a schematic structural view of a high-speed elevating type projector position system according to the present invention, fig. 4 is a side view of fig. 3, fig. 5 is a partially enlarged perspective view of a connection relationship between an elevating plate and a lifting plate according to the present invention, and fig. 6 is a partially enlarged perspective view of a horizontal support frame structure according to the present invention.

Referring to fig. 3 to 6, the high speed elevating type projector mount system 300 according to the present invention includes: a machine position unit 310, a main frame 320, a ball screw 330, a lifting plate 340, a lifting plate 350, and an automatic door 360.

First, the set-top unit 310 is a general structure, and is fixedly installed on the ceiling to provide a space in which the projector 1 can be installed at the upper rear of the theater auditorium.

The main frame 320 is fixed in a rectangular shape to a wall W behind the cinema auditorium.

Further, the ball screws 330 are provided in a pair, vertically installed through bearings to be rotatable on the main frame 320, and rotated in the same direction while being connected to a chain (or belt) through a first forward/reverse rotation motor M1 provided at a lower end of the main frame 320.

At this time, the upper and lower ends of the pair of ball screws 330 are provided with first limit switches SW1 for stopping the lifting plate 340 at a fixed position.

In addition, connection holes 341 screwed with the pair of ball screws 330 are formed at both ends of the elevating plate 340 in a vertical direction, and are elevated as the pair of ball screws 330 rotates, and a rack 343 is formed at a front center portion thereof in a longitudinal direction.

In addition, steps 345 for connecting the pair of ball screws 330 in a vertical direction are formed on both side surfaces of the elevation plate 340, a trapezoidal guide rail 347 is formed on an inner side surface of each step 345, and a second limit switch SW2 for stopping the elevation plate 350 at a fixed position is provided on an upper and lower end of the rack 343.

Then, the lifting plate 350 is attached to the front surface of the lifting plate 340, which has a pinion gear 351 engaged with the rack gear 343 and a second forward/reverse rotation motor M2 for rotating the pinion gear 351, and which has a pair of horizontal supporting frames 353 for fixing the projector 1 on the front surface.

At this time, the elevation plate 350 is provided with a coupling protrusion 352 for coupling the guide rail 347 of the elevation plate 340.

In addition, as shown in fig. 6, the horizontal support frame 353 is composed of a main support frame 355, a lower support frame 357, and an electric cylinder 359.

The main support frame 355 is made of open-bottomed steel, one end of which is fixed to the lifting plate 350, and guide pins P are provided on both outer sides of the other end.

The lower support 357 is made of a profile steel having an opened upper surface, surrounds the bottom of the main support 355, has one end hinge-coupled to the main support 355 and the other end formed with a guide hole H coupled to the guide pin P of the main support 355, and has a fixing protrusion 358 at the bottom surface to be coupled to the fixing groove 361 of the automatic door 360.

The electric cylinder 359 descends the lower support frame 357 from the main support frame 355 such that the fixing projection 358 of the lower support frame 357 is fixed to the fixing groove 361 of the automatic door 360. At this time, the electric cylinder 359 is operated before the automatic door 360 is opened, and is opened after the lock of the automatic door 360 is released, and is operated to fix the automatic door 360 when the automatic door 360 is closed.

In one aspect, the automatic door 360 is a general structure installed in front of the main frame 310 in a sliding door type. At this time, the automatic door 360 is provided with a fixing groove 361 to be coupled to a fixing protrusion 358 of the lifting plate 350, which will be described below, so as not to be opened by an external force. In addition, in order to install the automatic door 360, the finishing material B is installed on both side walls W of the main frame 310, the automatic door 360 is embedded in the finishing material B and installed, it is preferable that the finishing material B and the automatic door 360 are attached with an inner panel (not shown), and in order to work the automatic door 360, an operation panel is installed near a separate remote controller or the wall W, and when the operation panel is installed, it is preferable that a locking device is provided.

In the high-speed elevating projector position system 300 according to the present invention, it is preferable that an operation panel is attached to a single remote controller or the vicinity of the wall W in order to operate the first forward/reverse rotation motor M1, the second forward/reverse rotation motor M2, and the electric cylinder 359, and a lock device is provided when the operation panel is attached.

The operation of the high-speed elevating type projector position system according to the present invention will be described in detail with reference to the accompanying drawings.

First, when the projector 1 is lowered for maintenance, the operator operates the electric cylinder 359 by operating the operation panel near the remote controller or the wall W.

At this time, as shown in fig. 7 and 8, the lower support 357 of the horizontal support 353 is raised upward on the main support frame 55 centering on the hinge as the contraction of the electric cylinder 359, so that the connection between the fixing projection 358 and the fixing groove 361 of the automatic door 360 is released.

In this state, as shown in fig. 9, the operator operates the operation panel near the remote controller or the wall W to open the automatic door 360.

In a state where the automatic door 360 is opened, as shown in fig. 10, the operator operates the operation panel near the remote controller or the wall W to operate the first forward/reverse rotation motor M1 and the second forward/reverse rotation motor M2.

At this time, the pair of ball screws 330 rotates at the same speed in the main frame 320 according to the rotation of the first forward/reverse rotation motor M1, and the lifting plate 340 connected to the ball screws 330 descends.

At the same time, the pinion gear 351 rotates along the rack 343 in accordance with the rotation of the second forward/reverse rotation motor M2, and the lift plate 350 is automatically lowered from the lift plate 340.

At this time, the lifting plate 350 is lowered faster than the lowering speed of the lifting plate 340. At this time, the lifting plate 340 is lowered by the first limit switch SW1 and then stopped at the fixed position, and the lifting plate 350 is also lowered by the second limit switch SW2 and then stopped at the fixed position.

After the lowering is completed, the operator completes the maintenance of the projector apparatus 1, and after the lifting plate 340 and the lifting plate 350 are lifted in the reverse order of the above-described process, the lifting is completed, the automatic door 360 is closed, and then, the electric cylinder 359 is extended, so that the fixing projection 358 of the lower support 357 is coupled to the fixing groove 361 of the automatic door 360.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the invention is not to be limited to the particular forms set forth in the detailed description, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Description of the reference numerals

310: the station unit 320: main frame

330: ball screw 340: lifting plate

350: the lift plate 360: automatic door

Claims

1. A high speed elevating projector mount system, comprising: a machine position unit which is arranged to provide a space for installing a projector at the rear upper part of the cinema auditorium;

the main frame is fixedly arranged on the rear side wall of the cinema auditorium in a rectangular shape;

a pair of ball screws vertically arranged on the main frame and rotated by a first forward and reverse rotation motor arranged at the lower end of the main frame, and the upper and lower ends of each ball screw are provided with first limit switches;

a lifting plate, wherein connecting holes which are in screw connection with the pair of ball screws are formed at two ends of the lifting plate along the vertical direction, the lifting plate is lifted along with the rotation of the pair of ball screws, a rack which is provided with a second limit switch at the upper end and the lower end is formed at the central part of the front surface along the longitudinal direction, steps which are used for connecting the pair of ball screws along the vertical direction are formed at two sides of the lifting plate, and a trapezoidal guide rail is formed at the inner side surface of each step;

a lifting plate connected to the front surface of the lifting plate, having a pinion engaged with the rack and a second forward/reverse rotation motor for rotating the pinion, and having a pair of horizontal support frames for fixing the projector on the front surface and a connection protrusion for connecting to the guide rail;

the push-pull type automatic door is arranged in front of the main frame, and a fixing groove is arranged on the push-pull type automatic door; and

an operation panel which is installed near a single remote controller or a wall body and is provided with a locking device for operating the first forward/reverse rotation motor, the second forward/reverse rotation motor and the electric cylinder;

the horizontal support frame of the lifting plate is made of section steel with an open bottom, and further comprises: the main supporting frame is fixed at one end of the lifting plate, and guide pins are arranged on two sides of the outer side of the other end of the main supporting frame; the lower support frame is made of profile steel with an open upper surface, one end of the lower support frame surrounds the bottom of the main support frame, one end of the lower support frame is hinged with the main support frame, the other end of the lower support frame is provided with a guide hole connected with a guide pin of the main support frame, and the bottom surface of the lower support frame is provided with a fixing protrusion connected with a fixing groove of the automatic door; and an electric cylinder which descends the lower support frame from the main support frame, fixes the fixing projection of the lower support frame on the fixing groove of the automatic door, operates before the automatic door is opened, releases the locking of the automatic door to open, and operates to fix the automatic door when the automatic door is closed.