JP2005217717A - Camera with rotating body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems with a conventional camera that downsizing is difficult because a tightening mechanism such as a ball joint is required between a fitting member and a camera main body and that it is difficult to adjust an angle of the camera without a photographing confirmation means such as a finder because the angle adjustment is also required for a rotating direction. <P>SOLUTION: The camera with a rotating body includes: a camera unit shaped nearly spherical for photographing an object; a main body for mounting thereon the camera unit; and a fixed plate located behind the main body and provided with a hole, wherein a groove is provided to the front side of the camera unit and a projection provided to the fixed plate is fitted to the groove, the angle adjustment tightening mechanism is not required, and since the movement of the camera is limited only to vertical and horizontal motions, downsizing and reduction in time for the angle adjustment can be attained, and the camera angle adjustment mechanism for the camera fixed to inside and outside of a housing and photographing an object are practically very useful. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a camera that is fixed inside and outside a house, such as a security camera.

Conventionally, a camera that is fixed inside and outside a house and shoots has been proposed in Patent Document 1. The technique described in Patent Document 1 will be described with reference to FIG. According to the figure, the camera body 8 and the attachment member 9 are connected by a ball joint 11. This camera angle adjustment is performed by moving the camera body 8 connected by the ball joint 11 and freely moving and rotating in the vertical and horizontal directions so that the subject falls within the shooting range of the camera. 10 is tightened. As described above, the conventional camera requires a tightening mechanism such as the ball joint 11 between the attachment member 9 and the camera body 8. In addition, since the camera can be moved in directions other than the horizontal and vertical directions, it is necessary to adjust the angle with a shooting range confirmation means such as a viewfinder after adjusting the angle.
JP-A-7-147647

  The conventional camera requires a tightening mechanism such as a ball joint between the mounting member and the camera body, and it has been difficult to reduce the size. Further, the angle adjustment of the camera also requires the angle adjustment in the rotation direction, and it is difficult to adjust the angle without photographing confirmation means such as a viewfinder.

  In order to achieve the above object, a rotating body camera according to the present invention includes a substantially spherical camera unit for photographing a subject, a main body to which the camera unit is attached, and a fixing plate provided on the back side of the main body and provided with a hole. And a groove is provided on the surface of the camera unit, and a protrusion provided on the fixing plate is fitted into the groove.

  As is clear from the above description, the present invention eliminates the need for a tightening mechanism for camera angle adjustment, and the camera can be limited to only vertical and horizontal movements, thereby reducing the size of the camera and shortening the time for angle adjustment. It is practically extremely useful as a camera angle adjustment mechanism that can be fixed inside and outside the house and photographed.

  According to the configuration of the present invention, since the rotating body in which the camera is inserted is held with a constant force, a tightening mechanism such as a ball joint can be made unnecessary, and the movement of the rotating body is horizontal. It can only be in the vertical direction.

  An embodiment of the present invention will be described below. First, in FIG. 1, a reference numeral 1 indicates a camera, and a reference numeral 2 indicates a main body to which the camera is attached. The camera 1 has a spherical shape, half of the sphere appears on the table, and the other half is stored in the main body. . The camera 1 is configured to be brought out of contact with the circular hole from the back side to the front side of the circular hole having a smaller area than the cross-sectional area passing through the center of the sphere constituting the camera 1. Has been.

  2 is a cross-sectional view taken along the line a-a ′ shown in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line b-b ′ shown in FIG. 1. A method of attaching the camera 1 to the main body 2 will be described with reference to FIGS. In the figure, reference numeral 3 denotes a fixing plate that holds the camera 1 from the back side of the main body 2. In the present embodiment, the fixed plate 3 has a circular hole having a radius shorter than the radius of the cross section passing through the center of the sphere constituting the camera 1. Reference numeral 4 denotes a coil spring, 5 denotes a mounting boss through which the coil spring 4 passes, 6 denotes a screw, and 7 denotes a pressing plate.

  As shown in FIG. 2, a spherical camera 1 is brought into contact with the main body 2 having a circular hole from the back side. At this time, the diameter of the circular hole opened in the main body 2 is made smaller than the diameter of the cross-sectional circle passing through the center of the sphere so that the camera 1 can come into contact with the main body 2 without coming out from the main body 2. . Thus, even if a force is applied from the back side of the main body 2 from the back side of the spherical camera 1, the entire camera 1 can be prevented from coming out of the main body 2.

  Next, the screw mounting boss 5 is integrally formed with the main body 2, and a hole through which the screw mounting boss 5 passes is opened in the fixing plate 3 that holds the camera 1 as shown in FIG. 2. Through the screw mounting boss 5 through the hole in the fixing plate 3, the camera 1 is caught in the circular hole provided in the fixing plate 3 so as not to fall on the back side of the main body 2.

  Next, in order for the fixing plate 3 to always hold the camera 1 from the back side of the main body 2, after passing the fixing plate 3 through the screw mounting boss 5, the coil spring 4 is passed through each screw mounting boss 5. Then, by contracting the coil spring 4 with the pressing plate 7, a force for pressing the camera 1 against the back side of the main body 2 with the fixing plate 3 is generated. The force with which the camera 1 is pressed against the main body 2 from the back side of the main body 2 with the fixing plate 3 can be adjusted by the length with which the press plate 7 is tightened with the screws 6.

  The presser plate 7 has a hole so as to be fastened to the screw mounting boss 5 with the screw 6. At this time, the center point of the camera 1, the circular hole of the main body 2, the fixed plate 3, and the holding plate 7 is positioned on the center line of the camera sphere, so that the holding plate 7 can hold and rotate. Can be realized. By using such a mechanism, the spherical camera 1 is rotated in the vertical and horizontal directions so that the edge of the circular hole provided in the main body 2 and the edge of the circular hole provided in the fixing plate 3 and the camera 1 are rotated. The surface is held by the frictional force generated by contact. For this reason, when adjusting the angle of the ball joint or the like, a tightening structure is not necessary, and downsizing can be realized.

  Furthermore, as shown in FIG. 4, the protrusions attached to the edge of the hole provided in the fixed plate 3 so as to be rotatable about the vertical direction are provided at two upper and lower portions as shown in the figure to serve as a rotation shaft. On the spherical surface of the camera 1, a groove for sliding the rotation axis is carved up and down, and the groove and the rotation axis of the holding plate 3 are fitted.

  The camera 1 can rotate up and down along the groove along the fitted rotation shaft, and can rotate left and right around the rotation shaft at a position rotated up and down. The upper and lower rotation limits can be determined by the length of this slide. The left and right rotation limits can be realized by providing two stoppers in the left and right direction of the sphere. The groove is preferably dug into an oval or rectangular shape. In addition to providing the rotating shaft at the edge of the hole, a rod-shaped portion perpendicular to the side surface of the fixing plate is provided, and a rotating shaft is provided at the tip of the rod-shaped portion at a right angle to the rod-shaped portion and fitted into the groove. May be.

  The frictional force can be adjusted by the length of the screw 6 that fastens the presser plate 7, and the pressing force of the camera 1 and the rotating force can be adjusted. Thereby, the variation of each member and the angle adjusting force can be adjusted. Furthermore, by making the fixing plate 3 made of acetal resin, the camera 1 can be smoothly rotated to adjust the angle.

  Since the present invention relates to a rotating body camera having a camera angle adjustment mechanism, the serviceability of the security system can be improved, for example, when used in a camera that is fixed inside and outside a house.

FIG. 1 is an external view showing the configuration of a rotating body camera according to an embodiment of the present invention. Sectional drawing which shows the structure of the rotary body camera which concerns on one embodiment of this invention Sectional drawing which shows the structure of the rotary body camera which concerns on one embodiment of this invention Explanatory drawing of the rotating shaft of the rotary body camera which concerns on one embodiment of this invention External view of conventional camera

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Camera 2 Main body 3 Fixing plate 4 Coil spring 5 Screw mounting boss 6 Screw 7 Holding plate 8 Camera main body 9 Mounting member 10 Tightening screw 11 Ball joint

Claims (4)

A substantially spherical camera unit for photographing a subject; a main body to which the camera unit is attached; and a fixing plate that is disposed on the back side of the main body and provided with a hole, and a groove is provided on a surface of the camera unit, A rotating body camera in which a protrusion provided on the fixing plate is fitted into a groove. The rotating body camera according to claim 1, wherein the protrusion is provided at an edge of the hole of the fixing plate. The rotating body camera according to claim 1, wherein the groove portion has an oval shape or a rectangular shape. The rotating body camera according to claim 1, wherein the rotating body fixing plate is made of polyacetal resin.

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