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Movable vehicle carried projecting screen

A mobile and screen technology, applied in projection devices, optics, instruments, etc., can solve the problems of inconvenient mobile projection, unsafe factors, high work intensity, etc., and achieve simple and fast erection and dismantling work, good projection effect, and erection Normative effect

Inactive Publication Date: 2005-08-03
梁坚平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this time-consuming and labor-intensive projection screen erection method are: there is no ready-made screen installation bracket, and it is impossible to find a suitable projection site at will, and it is inconvenient for mobile projection; due to limited conditions, the screen erection is uneven and irregular, and it is difficult to work during the erection and dismantling process. High strength and unsafe factors; the existing erection method not only affects the projection effect of mobile movies, but also seriously affects the popularity of mobile movie projections

Method used

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  • Movable vehicle carried projecting screen
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  • Movable vehicle carried projecting screen

Examples

Experimental program
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Embodiment Construction

[0016] A mobile vehicle-mounted projection screen installed on a minivan, including a carrying vehicle 1, a telescopic support 2, and a projection screen 3, characterized in that: a telescopic support 2 is installed on a vertical lifting column 4 on the top of the carrying vehicle 1 to project The screen 3 is suspended and installed on the telescopic bracket 2. The projection screen 3 has a luminance coefficient of 360 at a viewing angle of 0°, an image resolution of 125 line pairs / mm, an overall size of 8m in width, 3.6m in height, and 0.5mm in thickness. The telescopic bracket 2 is composed of 8 telescopic support rods 6 installed on the rice-shaped support base 5, and the support rod telescopic drive motor 7 is installed at the bottom of the telescopic support rod 6, and the rice-shaped support base 5 is installed on the horizontal / vertical steering gear 8 top. The telescopic support rod 6 is made up of 4 telescopic sleeves 9 that can be inserted into each other. The retrac...

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Abstract

The movable vehicular projecting screen installed on micro bus includes bearing vehicle, telescopic spider support and projecting screen. The movable vehicular projecting screen has simple erecting process including expanding the support horizontally, covering and stretching the screen cloth, lifting the stretched screen cloth to the one half height with the vertically lifting columns, and turning the lifted screen cloth by 90 deg with the horizontal / vertical converter to reach the projecting state. The present invention makes erecting projecting screen easy and standard and can raise the quality of movably projected film.

Description

technical field [0001] The invention belongs to the field of movie projection, and in particular relates to a mobile vehicle-mounted projection screen installed on a vehicle. Background technique [0002] With the development of the film screening industry, mobile film screenings, a form of open-air video cultural activities that are popular with the public, are deeply welcomed by the masses in rural and urban communities. However, in the process of showing mobile movies, erecting and dismantling temporary screens is a very inconvenient and hard work. First of all, we must choose a suitable projection site, and look for supports that can hang the screen, such as tree stumps, poles, buildings, etc. A certain height requires unsafe climbing operations; at the end of the film screening, the screen and poles must be removed as soon as possible to restore the site to its original state. The disadvantages of this time-consuming and labor-intensive projection screen erection meth...

Claims

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Application Information

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IPC IPC(8): G03B21/56
Inventor 梁坚平
Owner 梁坚平