JP2010115629A - Fouling removing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remove attached droplets utilizing centrifugal force while keeping the field of view without cutting off the view when taking pictures. <P>SOLUTION: A droplet-removing filter and a windmill are integrated. The device is constituted by an outer cylinder (3) and an interior cylinder (2) put therein. The windmill (4), a bearing (5), etc. are arranged between two cylinders. The windmill (4) is fixed and fitted in the interior cylinder. Compressed air is flowed from an external compressor to an air introduction port (7), and the compressed air hits the windmill, the movement of which turns to a high-speed rotary movement. The high-speed rotary movement is transmitted also to the interior cylinder (2) fixed to the windmill, by which the rotation is transmitted also to the window of a front section and a dish-shaped disk (filter) (1). The centrifugal force is generated on the surface of the window, to sputter the attached droplets. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attached matter removing apparatus for securing a field of view by removing water droplets attached to a window located in a visual field of an object, for example, a window glass for a ship, a photographing lens for a camera, various sensors, The present invention relates to an improvement of a deposit removing device suitable for the above.

  Conventionally, when taking an image during precipitation, in order to remove water droplets and snow adhering to the camera lens or filter, the water droplets are directly wiped off with a cloth or wiper.

  However, in the conventional technology, in the type using a wiper for removing water droplets during precipitation, there is a time loss until the water droplets are removed by the reciprocating motion of the wiper from the time when the water droplets are attached to the removed water droplets. In addition, since the field of view may be obstructed due to the reflection of the wiper or the like, the moment of the work of removing the water droplet is reflected in the video. Optical sensors, etc. may malfunction due to water droplets and snow during the rain.

  The present invention pays attention to the above points, and by rotating the filter itself without wiping off water droplets directly, generating centrifugal force on the filter surface to quickly remove water droplets, snow, dust, etc. The objective is to ensure and maintain a clear and continuous view of the time.

  The present invention provides a fixed cylinder fixed to the water drop removal object side, a movable cylinder provided inside the fixed cylinder so as to contain the water drop removal object, the fixed cylinder, and the movable cylinder. Rotation drive means for rotating the movable cylinder relative to the fixed cylinder, provided on the end surface of the movable cylinder, and positioned in the field of view of the water droplet removal object A rotating means by a windmill is constituted by the fixed cylinder body, the movable cylinder body, and the rotation driving means, and the window is rotated by the rotating means of the windmill, and is attached to the window. It is characterized by removing water droplets.

  One of the main forms is characterized in that the wind turbine rotating means is either a wind turbine type using compressed air or a water turbine type using liquid. One of the other main forms is characterized in that a hood is provided to prevent danger associated with the rotation of the window or to prevent the deposits from scattering around the window.

  The present invention integrates the filter part that removes water droplets and the windmill, so that it can transmit compressed air and transmit all the rotational force generated in the windmill to the cylindrical part that hits the rotating shaft. In addition, water droplets adhering to the surface of the dish-shaped disk disposed in front of the cylinder can be instantaneously removed by centrifugal force. Also, since it is integrated with the windmill, it is extremely simple with no extra power transmission parts, so it can be reduced in size and weight, and can be mounted directly in front of the camera lens, so it is free with the camera. Can behave. In addition, it is possible to provide a device for removing water droplets that can be quickly detached and attached to the camera only during precipitation.

  Hereinafter, the best mode for carrying out the present invention will be described in detail based on examples.

  (1) It is comprised by two cylinders, an outer cylinder (3) and the inner cylinder (2) which enters in it. A transparent window is provided at the front of the inner cylinder (1). Further, by installing the bearing (5) and the bearing support (6) in the outer cylinder so as to support the inner cylinder, the inner cylinder becomes in a state in which the rotational movement is movable. The wind turbine (4) is arranged between the two cylinders, and the compressed air is allowed to flow from the air inlet (7), so that the inner cylinder fixed to the wind turbine starts rotating and constitutes the wind turbine type means. To do.

  (2) A windmill (4) is attached to an intermediate position of the inner cylinder (2). Compressed air flows from the external compressor through the air inlet (7) and is applied to the windmill. Since the windmill (4) is integrated with the fixed inner cylinder (2), the rotational movement starts together. Constitute. A deposit removal device is completed.

  (3) Thereby, the inner cylinder (2) starts high-speed rotational movement. Furthermore, the rotational motion is also transmitted to the front dish (1) which is directly connected. Further, centrifugal force is generated on the surface of the dish-shaped disk, and water droplets adhering to the surface of the dish-shaped disk are instantaneously splashed by the centrifugal force. Taking advantage of this action, the camera lens is inserted into the hollow portion of the rear part of the inner cylinder (2) and set to look into it. Since the centrifugal force continues to work on the surface of the dish-shaped disk (1) in front of the viewpoint to remove water droplets, it is possible to shoot almost no water droplets that obstruct the field of view and solve the problem.

  As the windmill type, the principle is the same even if it is a watermill type that uses liquid, for example, so that the same effect can be obtained and adhering removal with anti-vibration and soundproofing effects to reduce vibration and noise generated by compressed air It becomes possible to obtain a device.

The present invention has the following applicability.
(1) By removing raindrops and snow droplets attached to field photography during the rain and surveillance cameras installed in the field, it is possible to ensure and maintain a clear field of view and prevent a reduction in photography effect.

  (2) It can be used not only for removing water droplets at the time of shooting, but also for countermeasures against malfunction caused by rain, snow, mud, dust, or the like adhering to the light sensitive part of the optical sensor.

  (3) Since water droplets and mud at the time of precipitation jump instantaneously, it can be used to prevent light quantity reduction due to adhesion of mud or mud water by installing it in front of lights.

  (4) It is a water droplet removal filter that integrates the filter part and the windmill. Taking advantage of its characteristics, it can be installed in a soft vinyl window, hard glass window, inspection window, etc. It can be attached regardless of the size of the vehicle, and it is possible to remove the obstruction of the field of view by water drops in the vehicle, ship, tent, storage tank, etc., and to ensure and maintain the field of view clearly.

  It is a figure which shows the inner side and outer side cylinder and main components of one Example of this invention.   It is a front view of one Example of this invention.   It is a three-dimensional figure of one Example of this invention.   It is sectional drawing of one Example of this invention.

Explanation of symbols

(1) dish-shaped disk (filter), (2) inner cylinder, (3) outer cylinder (case), (4) windmill, (5) bearing, (6) bearing support, (7) air inlet, (8) Hood, (9) Set screw, (10) Camera,

Claims (3)

A fixed cylinder that is detachably fixed to the object side,
A movable cylinder provided inside the fixed cylinder so as to contain the object;
Rotation drive means that is formed between the fixed cylinder and the movable cylinder, and rotates the movable cylinder relative to the fixed cylinder;
Provided on the end surface of the movable cylinder, and provided with a window located in the field of view of the object,
The fixed cylinder body, the movable cylinder body, and the rotation driving means constitute a rotating means by a windmill, and the attached matter is removed by rotating the window by the rotating means of the windmill. Deposit removal device.   2. The deposit removing apparatus according to claim 1, wherein the wind turbine rotating means is either a wind turbine type using compressed air or a water wheel type using liquid.   3. The deposit removing apparatus according to claim 1, further comprising a hood for preventing danger associated with rotation of the front window or preventing scattering of deposits with respect to the surroundings.

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