JPH054144U - Surveillance camera case - Google Patents

Abstract

(57) [Abstract] [Purpose] To make it possible to open and close the shutter 31 reliably and easily even when the case of an outdoor surveillance television camera freezes in a cold district. In a case of a camera having a cushioning material having a Teflon layer formed on the contact portion between the shutter 31 and the main body of the protective case 20, an inclined portion 35 is provided at the lower end of the inner surface of the shutter 31. The position of the lower end 39 of the front surface of the shutter 31 is made lower than the position 33 of the lower end of the inner straight portion of 31.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective case for a surveillance TV camera, and particularly to a television used outdoors. It relates to the case of the camera.

[0002]

[Prior art]

  In the case of a vehicle-mounted rear monitoring camera used as a surveillance TV camera, When using the camera case 20 having the shutter 31 as shown in FIG. Is a television camera which opens the shutter 31 and stores the rear view in the camera case 20. It is captured by the camera and the rear view of the vehicle is displayed on the monitor TV inside the vehicle. During normal traveling of the glass, the shutter 31 is closed and the glass attached to the front of the TV camera. There are many things that keep the transparent plate from getting dirty.

[0003]   By the way, in cold regions etc., the protective case 20 is kept closed with the shutter 31 closed. When the water adhered to the ice freezes and the shutter 31 does not open when the vehicle 19 retreats. As a result, the heater is installed in the camera case 20 and the heater is energized. There is a device that dissolves frozen water around the shutter 31 (for example, (Sho 58-43.316, Sho 59-850), and a shroud attached around the transparent plate. It is attached to the surface of a rubber tape which is a cushioning material for the shutter 31 or the inner surface of the shutter 31. Attach a Teflon film, etc. to the surface of the rubber sheet that is the cushioning material, and Even if 31 freezes, the motor's rotating torque can be improved by facilitating peeling. There is also a device for forcibly opening the shutter 31 with a click.

[0004]

[Problems to be solved by the device]

  As mentioned above, the camera case with the heater attached to the case is difficult to assemble the case. There is a drawback that it is difficult and the wiring is complicated.   Also, a camera case in which a Teflon film or Teflon sheet is attached to a shutter, etc. Although the freezing of the Teflon-coated part can be easily peeled off, attach the Teflon. If there is icing between the shutter and the case body at the peripheral edge of the shutter However, there is a risk that the shutter will not open.

[0005]

[Means for Solving the Problems]

  The present invention provides an inclined portion at the lower end of the shutter so as to reduce the inner surface angle of the shutter. , The lower end position of the front surface of the shutter is lower than the lower end position of the linear portion of the inner surface of the shutter. To be located at.   In addition, an inclined portion is provided on the inner surface of the lower end of the shutter, and the bottom of the case is horizontally oriented. In some cases, a protrusion that is a line is formed.

[0006]

[Work]

  The present invention has an inclined portion at the lower end of the inner surface of the shutter, so that the lower end of the front surface of the shutter is straight on the inner surface. Since it is located below the lower edge of the part, water droplets that have propagated through the shutter will not be in front of the shutter. The moisture that collects at the bottom edge of the surface and remains on the inner surface of the shutter that contacts the case body is reduced. It can be lost.

[0007]   In addition, if a protrusion with a horizontal axis is formed at the bottom of the case, the moisture that propagates through the bottom can be prevented. Prevents water from gathering at the joint with the shutter by gathering at the tip of the protrusion and dripping it can.

[0008]

【Example】

  The first embodiment of the present invention covers the television camera 11 as shown in FIGS. The mel case 20 is opened by rotating a motor built in the side of the case 20. A front cover 25 having a shutter 31 to be closed and the case having the camera 11 built therein. A rear cover 23 having a support portion 24 for fixing the vehicle 20 at a predetermined position on the vehicle 19; Cover the front cover 25 and the rear cover 23 to slightly forward of the front end of the front cover 25. With the protective case 20 for the outdoor surveillance camera 11 formed by the hood 21 protruding to the Yes, on the front surface of the main body of the front cover 25, as shown in FIG. A window made of a transparent plate 27 such as glass or plastic is provided at the position of 15 A cushioning material 32, such as a rubber sheet, having a Teflon layer formed on the surface thereof is attached to the inner surface of the battery 31. However, when the shutter 31 is closed, the metal shutter 31 impacts the transparent plate 27 and the like. I try not to give it.

[0009]   In the shutter 31 of such a camera case 20, this embodiment is shown in FIG. Similarly, the thick portion 37 is formed at the lower end of the shutter 31, and the inner surface of the shutter 31 is formed. An inclined portion 35 is provided at the lower end, and the shutter 31 and the shutter 31 are provided along the inclined portion 35. The water transmitted through the joint with the main body of the front cover 25 contacts only the lower end 39 of the front surface of the shutter. It is designed to be a drop.

[0010]   Therefore, moisture remaining in the joint between the shutter 31 and the main body of the front cover 25 is reduced. Even if this moisture freezes, the surface of the cushioning material 32, such as a rubber sheet, can be removed. The formed Teflon layer facilitates peeling to facilitate opening of the shutter 31, and , The water droplets collected on the lower end of the conventional shutter 31 and the front cover 25 of the shutter 31. It freezes so as to connect with the main body of the shutter and prevents the shutter 31 from opening. On the other hand, in this embodiment, the water droplets accumulated at the tip of the shutter 31 are removed from the main body of the front cover 25. Water droplets collected on the lower end 39 of the front surface, which is the surface of the shutter 31, without contacting Therefore, even if the water droplets freeze, it does not hinder the movement of the shutter 31. I am able to do so.

[0011]   Further, as another embodiment of the present invention, as shown in FIG. 6 and FIG. In the bottom portion 26 of the front side, a protrusion 28 that is wider than the width of the shutter 31 in the lateral direction is Some are formed along the rear edge of the cover 25.   In this embodiment, the surveillance camera is tilted to the upper rear part of the vehicle 19 as shown in FIG. If it is installed at an angle, water droplets will be in front of the bottom 26 along the bottom of the camera cover. A large amount of water collects at the contact area between the shutter 31 and the main body of the front cover 25. It is possible to prevent the shutter 31 and the main body of the front cover 25 from solidly icing. it can.

[0012]   Further, in the above embodiment, the inclined portion 35 is provided at the lower end of the inner surface of the shutter 31, and the linear portion of the inner surface is formed. When the position of the front lower end 39 is made lower than the position of the lower end 33, the thick portion 37 is formed. Therefore, although the vicinity of the lower end of the shutter 31 is thickened, as shown in A of FIG. When the whole 31 is formed to be relatively thick, or as shown in FIG. While the rib 31 is provided around the shutter 31 while the whole wall 31 is thin, the shutter 3 Especially for the shutter 31 whose weight is reduced while preventing the strength reduction of No. 1, It is sufficient to simply provide the inclined portion 35 without forming the thick portion 37 at the lower end of the switch 31. Further, as shown in FIG. 8C, the lower end of the shutter 31 is bent forward. It is also possible to form the inclined portion 35.

[0013]   In the above embodiment, the rubber sheet having a Teflon layer on the inner surface of the shutter 31 is used. Although the cushioning material 32 such as a sheet is attached, the circumference of the transparent plate 27 in the front cover 25 main body is In some cases, a cushioning material such as a rubber tape having a Teflon layer may be attached to the enclosure. The left and right ends of the rubber tape as a cushioning material attached to the left and right of the transparent plate 27 are shuttered. Align the left and right edges of 31 so that the rubber tape and Teflon layer do not overflow At the same time, the lower end of the rubber tape attached below the transparent plate 27 is the front surface of the shutter 31. Slightly below the lower end 33 of the linear portion of the inner surface of the shutter 31 without exceeding the lower end 39. Therefore, even if the moisture that permeates and remains on the joint surface with the shutter 31 freezes, If ice is allowed to join the Teflon layer and the shutter 31, the ice will cause the shattering. It is possible to eliminate the risk of making the opening of the lid 31 difficult.

[0014]   Furthermore, the above-described embodiment is separate from the TV camera 11 that houses the TV camera 11. Although the protective case 20 is used for the explanation, the exterior case of the TV camera 11 is covered with the motor. Even if the case of a TV camera with the camera and shutter directly attached is used, It can be given.

[0015]

[Effect of device]

  The present invention relates to a shutter provided in the case of a monitor television camera An inclined part is provided on the lower end of the inner surface of the shutter, and the shutter front surface is below the lower end of the inner straight part. Since the edge position is low, the contact part between the shutter and the front cover body, which is the case, is The water that travels collects along the slope at the lower edge of the front surface of the shutter, and when this water freezes, Even if the shutter is open, the shutter and the front cover body are prevented from binding and the shutter is opened. It can always be done reliably.

[Brief description of drawings]

FIG. 1 is a protective case of a surveillance camera according to an embodiment of the present invention.
Side view.

FIG. 2 is a protective case of a surveillance camera according to an embodiment of the present invention.
Front view.

FIG. 3 is an exploded side view of a protective case according to an embodiment of the present invention.

FIG. 4 is a side view of the protective case of the surveillance camera according to the embodiment of the present invention showing a state in which a shutter is opened.

FIG. 5 is a front view of the protective case of the surveillance camera according to the embodiment of the present invention showing a state in which the shutter is opened.

FIG. 6 is a side view showing a second embodiment of the protective case for the surveillance camera according to the present invention.

FIG. 7 is a front view showing a second embodiment of the protective case for the surveillance camera according to the present invention.

FIG. 8 is an enlarged view showing an example of the shape of the shutter tip portion used in the present invention.

FIG. 9 is a diagram showing an example of a mounted state of a camera.

[Explanation of symbols]

11 TV camera 15 lens 20 protective case 21 hood 28 Projection 31 Shutter 35 Inclined part

Claims (2)

[Scope of utility model registration request] 1. A camera case having an openable and closable shutter, wherein a contact member between the shutter and the case body is provided with a Teflon-processed cushioning material, and an inclined portion is provided at a lower end of an inner surface of the shutter. A case of a surveillance camera having a shutter having a structure in which a lower end of a front surface of the shutter is located lower than a lower end of a straight portion of an inner surface of the shutter. 2. A case of a camera having an openable and closable shutter, wherein a contact member between the shutter and the case main body is provided with a buffer material having a Teflon process, and an inclined portion is provided at a lower end of an inner surface of the shutter. A case for a surveillance camera, characterized in that it has a protrusion having an axis in the lateral direction at the bottom of the case body.