JP2021136685A - Imaging apparatus - Google Patents

Abstract

To provide an imaging apparatus capable of improving the workability of photographing direction adjustment by a user in installation and suppressing the fluctuations of the photographing direction of a camera part caused by a vibration in use.SOLUTION: The imaging apparatus includes a housing which is composed of a base part and a cover part, a camera part which is arranged in the base part in the housing, a camera cover which is arranged in the base part in the housing and comes into contact with the camera part, to cover the camera part, and an energizing member which is pressed by the cover part, to be deformed and energizes the camera cover, when the cover part is attached to the base part. An energizing force from the energizing member to the camera cover is increased by the deformation of the energizing member, so that a frictional force between the camera part and the camera cover is increased.SELECTED DRAWING: Figure 3

Description

The present invention relates to an imaging device.

Conventionally, network cameras have been assumed to be installed in various environments. For example, when it is assumed that the camera is installed in a vehicle, strong vibration or shock may be transmitted to the camera housing. On the other hand, when the camera housing is installed in a vehicle, it is necessary to manually adjust the orientation of the camera unit to match the shooting direction. After adjusting the orientation, it is necessary to increase the holding torque to fix the camera unit in order to prevent the shooting direction from shifting due to strong vibration or the like. However, when the camera unit is manually moved to adjust the shooting direction, workability deteriorates if the holding torque is strong.

Therefore, conventionally, a method of preparing a dedicated adjustment tool so that the camera unit can be moved even when the holding torque is strong, or a method of fixing the camera unit with a screw or the like after adjusting the orientation has been adopted. However, if a special adjustment tool is required, the number of parts included in the product will increase and the number of operations will increase. Further, if the screw fixing portion is provided in the housing, the housing may become large. Generally, in camera installation work, the number of steps is small, and it is preferable that a special tool is not required. In addition, miniaturization is required so that the camera can be installed in an inconspicuous place or in a narrow place.

Therefore, in the image pickup apparatus described in Patent Document 1, a fixing member is arranged in the camera portion, and when the top cover is closed, the fixing member comes into contact with the dome cover and is sandwiched to fix the camera portion.

JP-A-2018-36599

However, in the image pickup apparatus described in Patent Document 1, since the fixing member directly touches the camera portion, the angle of view may shift when the top cover is closed. In particular, in the case of a high-magnification lens, even a slight angle of view shift causes a large shift in the shooting range.

Therefore, an object of the present invention is to provide an imaging device capable of improving the workability of adjusting the shooting direction by the user and suppressing the fluctuation of the shooting direction of the camera unit due to vibration.

The image pickup apparatus of the present invention has a housing composed of a base portion and a cover portion, a camera portion in the housing and arranged in the base portion, and an imaging device in the housing and arranged in the base portion. A camera cover that comes into contact with the camera portion and covers the camera portion, and when the cover portion is attached to the base portion, the camera cover is deformed by being pressed by the cover portion to urge the camera cover. A member, and the deformation of the urging member increases the urging force from the urging member to the camera cover, so that the frictional force between the camera unit and the camera cover increases. It is a feature.

According to the present invention, it is possible to provide an imaging device capable of improving the workability of adjusting the shooting direction by a user and suppressing fluctuations in the shooting direction of the camera unit due to vibration.

An exploded perspective view of the image pickup apparatus according to the first embodiment of the present invention. The figure in the state which removed the top cover of the image pickup apparatus which concerns on 1st Embodiment of this invention. Sectional drawing which shows the detailed structure of the image pickup apparatus which concerns on 1st Embodiment of this invention. Sectional drawing which shows operation detail of the pressing member which concerns on 1st Embodiment of this invention. Sectional drawing which shows the operation detail of the pressing member which concerns on 2nd Embodiment of this invention. Perspective view which shows the pressing member which concerns on 3rd Embodiment of this invention. An exploded perspective view of the image pickup apparatus according to the fourth embodiment of the present invention. Sectional drawing which shows the operation detail of the pressing member which concerns on 4th Embodiment of this invention.

<First Embodiment>
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, a network camera will be described as an example of the image pickup apparatus. FIG. 1 is an exploded perspective view of the image pickup apparatus according to the first embodiment of the present invention. FIG. 2 is a view showing a state in which the top cover of the image pickup apparatus according to the first embodiment of the present invention is removed. FIG. 3 is a cross-sectional view showing a detailed configuration of the image pickup apparatus according to the first embodiment of the present invention.

The network camera 100 includes a lens protection member 110, a top cover 120 (cover portion), a bottom cover 140 (base portion), and a base member 160 (holding member). The network camera 100 further includes a pressing member 170, an elastic member 180 (a biasing member), a cover member 190 (camera cover), and a substantially spherical camera unit 200.

The lens protection member 110 has a hemispherical shape and protects the parts housed inside the housing from impacts and the like. Since the lens protection member 110 shoots through the lens protection member 110 when shooting, it is treated as an optical component, and transparency and dimensional accuracy are important. Further, the lens protection member 110 is made of, for example, transparent polycarbonate. The lens protection member 110 is fixed to the top cover 120 by using screws or the like, and is fixed to the bottom cover 140 in a state of being fixed to the top cover 120.

The top cover 120 and the bottom cover 140 form a housing by being fastened to each other with screws or the like. Inside the housing, a base member 160, a pressing member 170, an elastic member 180, a cover member 190, and a camera unit 200 are arranged. Further, the control board 300 is housed inside the housing. The control board 300 controls the entire network camera 100, such as power supply, camera control, and connection to a network.

The top cover 120 and the bottom cover 140 are made of, for example, metal die-cast or polycarbonate resin, respectively. The bottom cover 140 is provided with an installation hole, and is fixed to the ceiling, wall, etc. of the vehicle using screws or the like. Further, the bottom cover 140 is provided with a waterproof portion, and the top cover 120 is fixed to prevent water and dust from entering the inside of the housing.

The base member 160 holds the cover member 190 so as to be rotatable in the pan direction, and is fixed to the bottom cover 140 with screws or the like. The base member 160 is provided with a circular opening in which the camera unit 200 is arranged, and at least a part thereof is arranged between the top cover 120 and the pressing member 170. The base member 160 is made of, for example, a polycarbonate resin. The base member 160 is formed with a protrusion hole 162 through which the protrusion 172 of the pressing member 170 penetrates. A plurality of protrusion holes 162 are provided at intervals in a circular shape. As shown in FIG. 2, when the top cover 120 is removed, the protrusion 172 of the pressing member 170 penetrates the protrusion hole 162 of the base member 160 and is fixed in a protruding state.

Further, as shown in FIG. 3, the base member 160 has a first cylindrical holding portion 164 and a second cylindrical holding portion 166 that hold the cover member 190 in a pan-rotatable manner. The first cylindrical holding portion 164 regulates the pan rotation of the camera portion 200 and the cover member 190, and the second cylindrical holding portion 166 prevents the cover member 190 from tipping over. As shown in FIG. 3, the pan axis b, which is the center of rotation in the pan direction defined by the first cylindrical holding portion 164, forms a constant angle θ with respect to the vertical direction of the setting surface a of the bottom cover 140. ing.

The pressing member 170 is a member that presses the elastic member 180, has a substantially circular shape, and has a camera unit 200 arranged inside. The pressing member 170 is made of a sheet metal such as stainless steel. At least a part of the pressing member 170 is arranged between the base member 160 and the elastic member 180. Further, the pressing member 170 has a protrusion 172 protruding in the direction of the top cover 120. A plurality of protrusions 172 extend along the circumferential direction and are provided at equal intervals. The protrusion 172 is arranged so as to penetrate the protrusion hole 162 of the base member 160 when the top cover 120 is removed. Further, the tip of the protrusion 172 is chamfered so as to easily pass through the protrusion hole 162. Although a plurality of protrusions 172 are provided at equal intervals, the protrusions 172 may or may not be at equal intervals. The pressing member 170 may not be provided. When the pressing member 170 is not provided, the elastic member 180 is directly pressed against the top cover 120.

The elastic member 180 is a member that urges the cover member 190, has a substantially circular shape, and has a camera unit 200 arranged inside. The elastic member 180 is made of a wave washer. The elastic member 180 is arranged between the pressing member 170 and the cover member 190, and is compressed by being pressed by the pressing member 170. In other words, when the top cover 120 is attached to the bottom cover 140, it is deformed by being pressed by the pressing member 170, and the cover member 190 is urged. Further, due to the deformation of the elastic member 180, the urging force from the elastic member 180 to the cover member 190 increases, so that the frictional force between the camera unit 200 and the cover member 190 increases. This will be described later.

The cover member 190 has an opening that is continuously opened from the horizontal position to the vertical position, which is the photographing range. The cover member 190 is made of, for example, a polycarbonate resin.

The cover member 190 has a flange portion 194 held by the first cylindrical holding portion 164. The flange portion 194 is a surface perpendicular to the pan axis direction. Then, the elastic member 180 is arranged on the flange portion 194. Therefore, the direction in which the elastic member 180 is compressed is substantially parallel to the pan axis b. The vibration transmitted to the camera from a vehicle or the like basically has a large vibration component in the direction perpendicular to the installation surface a. On the other hand, the compression direction of the elastic member 180 is configured to have a constant inclination angle θ with respect to the vertical direction of the installation surface a, and the vibration direction and the compression direction of the elastic member 180 are changed. Therefore, the vibration component in the vertical direction is stress-dispersed and reduced. As a result, the elastic member 180 expands and contracts due to strong vibration to prevent the angle of view from shifting due to a decrease in frictional force.

The camera unit 200 can be rotated in the pan direction, the tilt direction, and the rotation direction by the user holding the camera unit 200 and the cover member 190 and manually rotating the camera unit 200. In the pan rotation operation, the cover member 190 and the camera unit 200 rotate together (integrally) with respect to the base member 160 by pan-rotating either the cover member 190 or the camera unit 200. On the other hand, in the tilt and rotation operations, the cover member 190 does not rotate, and only the camera unit 200 rotates with respect to the cover member 190. As shown in FIG. 2, a circular rib 212 is formed on the lens cover 210 of the camera unit 200, and the cover member rib 212 comes into contact with the edge of the opening of the cover member 190, so that the camera unit 200 Tilt rotation is regulated.

The camera unit 200 is arranged on the substantially spherical first receiving portion 146 of the cover member bottom cover 140, and is held so as to be covered by the cover member 190 from above. Further, the camera unit 200 includes a lens 220, a lens holder 230, an image pickup substrate 240 having an image pickup element, and a lens cover 210. The lens holder 230 and the lens cover 210 are made of, for example, a polycarbonate resin.

The lens 220 is screwed and held by the lens holder 230, and its position can be adjusted in the optical axis direction in order to adjust the focus. The image pickup substrate 240 is fixed to the lens holder 230 by adhesion or the like. The lens holder 230 is gripped and fixed to the lens cover 210. An opening for exposing the lens 220 is formed in front of the lens cover 210, and a hole for passing a wire 250 or the like is formed in the rear of the lens cover 210. The image pickup board 240 is electrically connected to the control board 300 by a wire 250 or the like. As a result, the camera unit 200 converts the light received through the lens protection member 110 and the lens 220 into an electric signal by the image pickup board 240, and records the image or distributes the image on the network via the control board 300.

Here, the frictional force for fixing the camera unit 200 will be described. The bottom cover 140 is formed with a substantially spherical first receiving portion 146 that holds the lower side of the lens cover 210. Further, the cover member 190 is formed with a substantially spherical second receiving portion 192 that holds the upper side of the lens cover 210. The lens cover 210, the first receiving portion 146, and the second receiving portion 192 are in contact with each other on a substantially spherical surface, and the camera unit 200 can rotate about the center of the sphere of the lens cover 210 in the tilt and rotation directions. There is. The base member 160 presses the elastic member 180 via the pressing member 170 to press the cover member 190 against the lens cover 210. As a result, a frictional force is generated between the lens cover 210 and the first receiving portion 146 and the second receiving portion 192. The frictional force produces a pan / tilt / rotation holding torque (holding force). Further, the frictional force between the lens cover 210 and the second receiving portion 192 of the cover member 190 is larger after the top cover 120 is attached to the bottom cover 140 than before the top cover 120 is attached to the bottom cover 140. .. Similarly, the frictional force between the lens cover 210 and the first receiving portion 146 of the bottom cover 140 is greater after the top cover 120 is attached to the bottom cover 140 than before the top cover 120 is attached to the bottom cover 140. big.

In this way, the lens cover 210 and the first receiving portion 146 and the second receiving portion 192 are always in contact with each other. However, the frictional force between the lens cover 210 and the first receiving portion 146 and the second receiving portion 192 is different before the top cover 120 is attached to the bottom cover 140 and after the top cover 120 is attached to the bottom cover 140. ..

Further, details of the pan / tilt / rotation holding torque (holding force) of the camera unit 200 will be described. 4 (a) to 4 (d) are cross-sectional views showing the operation details of the pressing member 170. FIGS. 4A and 4C show the positions of the pressing member 170 with the top cover 120 closed. The difference between FIGS. 4A and 4C is the difference in cross-sectional position. FIG. 4A is a portion where the elastic member 180 and the cover member 190 are not in contact with each other, and FIG. 4C is a portion where the elastic member 180 and the cover member 190 are in contact with each other. Since the elastic member 180 is a wave washer, there is a portion that does not contact as shown in FIG. 4A depending on the cross-sectional position.

A guide portion 168 for restricting the movement of the pressing member 170 is formed on the outer peripheral surface of the protrusion hole 162 of the base member 160. The outer peripheral surface (outer surface) of the pressing member 170 and the guide portion 168 are fitted so that the pressing member 170 can move in the pan axis direction. On the other hand, there is a gap between the inner peripheral wall surface of the protrusion hole 162 and the inner peripheral surface of the pressing member 170, so that the structure does not hinder the movement of the pressing member 170 in the pan axial direction.

The top cover 120 has a pressing surface 122 perpendicular to the pan shaft b, and the pressing surface 122 presses the protrusion 172 of the pressing member 170 with the top cover 120 closed. As a result, the pressing member 170 moves in the pan-axis direction in the direction of compressing the elastic member 180. At this time, the elastic member 180 is in the most compressed state in the elastic deformation region, and the holding torque (holding force) with respect to the camera unit 200 is also maximized. In this way, when the holding torque (holding force) is maximum, it is possible to prevent the camera unit 200 from shifting in the pan-tilt rotation direction even if vibration or impact is transmitted to the network camera 100, and it is possible to suppress fluctuations in the shooting angle of view. can.

4 (b) and 4 (d) show the positions of the pressing member 170 when the top cover 120 is opened. The difference between FIGS. 4 (b) and 4 (d) is the difference in cross-sectional position. FIG. 4B is a portion where the elastic member 180 and the cover member 190 are not in contact with each other, and FIG. 4D is a portion where the elastic member 180 and the cover member 190 are in contact with each other. Since the elastic member 180 is a wave washer, there is a portion that does not contact as shown in FIG. 4B depending on the cross-sectional position.

In this way, the user performs the work of adjusting the shooting direction in the state before the top cover 120 is attached. In the state before the top cover 120 is attached, the pressing member 170 moves to the base member 160 side in the pan axis direction by the reaction force of the elastic member 180. At this time, the amount of compression of the elastic member 180 is smaller than that of FIGS. 4A and 4C, and the pan / tilt / rotation holding torque for the camera unit 200 is also reduced. However, at the time of assembly, the elastic member 180 is arranged in a compressed state between the pressing member 170 and the cover member 190. Therefore, the holding torque is generated. As a result, the user can adjust the direction of the camera unit 200 to an arbitrary direction while suppressing the camera unit 200 from moving due to its own weight or the like. In addition, the angle of view can be maintained after the user adjusts the orientation of the camera unit 200 to an arbitrary position.

As described above, as shown in FIGS. 4B and 4D, the pan / tilt / rotation holding torque is small in the state before the top cover 120 is attached, that is, when the network camera 100 is installed, so that the user can use the camera. The orientation of the unit 200 can be adjusted to any orientation. Further, after the user adjusts the orientation of the camera unit 200, by attaching the top cover 120 as shown in FIGS. 4A and 4C, the holding torque for the camera unit 200 is also maximized. Therefore, even if vibration or impact is transmitted to the network camera 100, it is possible to suppress the camera unit 200 from shifting in the pan-tilt rotation direction, and it is possible to suppress fluctuations in the shooting angle of view. Further, as compared with the configuration in which the camera unit 200 is directly urged by the elastic member, it is possible to prevent the angle of view from shifting when the top cover 120 is closed.

As described above, according to the first embodiment of the present invention, it is possible to provide the network camera 100 which can improve the workability of adjusting the shooting direction by the user and can suppress the fluctuation of the shooting direction of the camera unit due to vibration.

<Second embodiment>
Next, a second embodiment of the present invention will be described with reference to FIG. The second embodiment is different from the first embodiment in the elastic member. The basic configuration of the present embodiment is the same as that of the first embodiment, and the common components are designated by the same reference numerals as those of the first embodiment to replace the description. The elastic member 400 of the second embodiment is made of a coil spring. The elastic members 400 are members that urge the cover member 190, and a plurality of elastic members 400 are arranged at equal intervals in the circumferential direction. The elastic member 400 is arranged between the pressing member 170 and the cover member 190, and is compressed by being pressed by the pressing member 170. The elastic member 400 may be fixed by providing a protrusion on the pressing member 170 or the cover member 190, but the fixing method is not particularly limited.

Details of holding the camera unit 200 will be described. FIG. 5 is a cross-sectional view showing the operation details of the pressing member 170. FIG. 5A shows the position of the pressing member 170 with the top cover 120 closed. Similar to the first embodiment, the pressing surface 122 presses the protrusion 172 of the pressing member 170 with the top cover 120 closed. As a result, the pressing member 170 moves in the pan-axis direction in the direction of compressing the elastic member 400. At this time, the elastic member 400 is in the most compressed state in the elastic deformation region, and the holding torque with respect to the camera unit 200 is also maximized. In the maximum holding torque state, even if vibration or impact is transmitted to the network camera 100, it is possible to suppress the camera unit 200 from shifting in the pan-tilt rotation direction, and it is possible to suppress fluctuations in the shooting angle of view.

FIG. 5B shows the position of the pressing member 170 when the top cover 120 is opened. When the top cover 120 is opened, the pressing member 170 moves toward the base member 160 in the pan axis direction by the reaction force of the elastic member 400. At this time, the amount of compression of the elastic member 400 is smaller than that in FIG. 5A, and the holding torque for the camera unit 200 is also reduced. However, since the elastic member 400 is fixed in a compressed state, the holding torque is not lost. As a result, the user can adjust the direction of the camera unit 200 to an arbitrary direction while suppressing the camera unit 200 from moving due to its own weight or the like. In addition, the angle of view can be maintained after the user adjusts the orientation of the camera unit 200 to an arbitrary orientation.

As described above, as shown in FIG. 5B, in the state before the top cover 120 is attached, that is, when the network camera 100 is installed, the pan / tilt / rotation holding torque is small, so that the user can orient the camera unit 200. Can be adjusted in any orientation. Further, after the user adjusts the orientation of the camera unit 200, by attaching the top cover 120 as shown in FIG. 5A, the holding torque for the camera unit 200 is also maximized. Therefore, even if vibration or impact is transmitted to the network camera 100, it is possible to suppress the camera unit 200 from shifting in the pan-tilt rotation direction, and it is possible to suppress fluctuations in the shooting angle of view.

As described above, according to the second embodiment of the present invention, it is possible to improve the workability of the user for adjusting the shooting direction at the time of installation, as in the first embodiment. Further, it is possible to provide a network camera 100 capable of suppressing fluctuations in the shooting direction of the camera unit due to vibration during use.

<Third embodiment>
Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 6 is a perspective view showing a pressing member according to a third embodiment of the present invention. The third embodiment is different from the first embodiment in the pressing member. The basic configuration of the present embodiment is the same as that of the first embodiment, and the common components are designated by the same reference numerals as those of the first embodiment to replace the description.

The pressing member 500 is a member that presses the elastic member 180, has a substantially circular shape, and has a camera unit 200 arranged inside. The pressing member 500 is made of resin. The pressing member 500 is arranged between the base member 160 and the elastic member 180. Further, the pressing member 500 has a protrusion 502 toward the top cover 120. A plurality of protrusions 502 are provided at equal intervals in the circumferential direction. The protrusion 502 is arranged so as to penetrate the protrusion hole 162 of the base member 160 when the top cover 120 is removed.

Also in the third embodiment of the present invention, the workability of adjusting the shooting direction by the user can be improved as in the first and second embodiments. Further, it is possible to provide a network camera 100 capable of suppressing fluctuations in the shooting direction of the camera unit due to vibration.

<Fourth Embodiment>
Next, a fourth embodiment of the present invention will be described with reference to FIG. The fourth embodiment has a different shape of the urging member from the first embodiment, and does not use the pressing member. The basic configuration of the present embodiment is the same as that of the first embodiment, and the common components are designated by the same reference numerals as those of the first embodiment to replace the description. FIG. 7 is an exploded perspective view of the image pickup apparatus according to the fourth embodiment. Note that FIG. 7 is a view seen from the installation surface direction.

The elastic member 680 of the fourth embodiment is made of a wave washer and has a plurality of peaks and valleys. The elastic member 680 is a member that urges the cover member 190, has a substantially circular shape, and has a camera unit 200 arranged inside. A pressing rib 672 is formed inside the top cover 620. Further, the base member 660 is formed with a protrusion hole 662 through which the pressing rib 672 penetrates. The elastic member 680 is arranged between the base member 660 and the cover member 190, and is compressed by being pressed by the base member 660. When the top cover 620 is closed, the pressing rib 672 directly presses the elastic member 680. This will be described later. A phase fixing portion 682 is formed on the elastic member 680. On the other hand, the base member 660 has a notch 664. The phase fixing portion 682 is arranged so as to correspond to the cutout portion 664, and the phases of the peaks and valleys of the elastic member 680 are uniformly determined. The pressing rib 672 is arranged at a position corresponding to the mountain portion of the elastic member 680. In the absence of the phase fixing portion 682, the elastic member 680 can be arranged in any rotational phase with respect to the base member 660. If the valley portion of the elastic member 680 is arranged under the pressing rib 672, the pressing rib 672 may not reach the elastic member 680 and may not be sufficiently compressed. Therefore, the phase fixing portion 682 is provided, and the mountain portion of the elastic member 680 is surely arranged under the pressing rib 672.

Details of holding the camera unit 200 will be described. FIG. 8 is a cross-sectional view showing the details of the compression operation of the elastic member 680. FIG. 8A shows a compressed state of the elastic member 680 with the top cover 620 closed. When the top cover 620 is closed, the pressing rib 672 penetrates the protrusion hole 662 and presses the mountain portion of the elastic member 680. At this time, the elastic member 680 is in the most compressed state in the elastic deformation region, and the holding torque with respect to the camera unit 200 is also maximized. The tip surface of the pressing rib 672 is substantially perpendicular to the pan axis b. As a result, the elastic member 680 pressing direction has a constant angle θ with respect to the vertical direction of the ground contact surface a. In the maximum holding torque state, even if vibration or impact is transmitted to the network camera 100, it is possible to suppress the camera unit 200 from shifting in the pan-tilt rotation direction, and it is possible to suppress fluctuations in the shooting angle of view.

FIG. 8B shows a compressed state of the elastic member 680 when the top cover 620 is opened. When the top cover 620 is opened, the elastic member 680 is compressed only by the base member 660. At this time, the amount of compression of the elastic member 680 is smaller than that in FIG. 8A, and the holding torque for the camera unit 200 is also reduced. However, since the elastic member 680 is fixed in a compressed state, the holding torque is not lost. As a result, the user can adjust the direction of the camera unit 200 to an arbitrary direction while suppressing the camera unit 200 from moving due to its own weight or the like. In addition, the angle of view can be maintained after the user adjusts the orientation of the camera unit 200 to an arbitrary orientation.

As described above, according to the fourth embodiment of the present invention, it is possible to improve the workability of the user for adjusting the shooting direction at the time of installation, as in the first embodiment. Further, it is possible to provide a network camera 100 capable of suppressing fluctuations in the shooting direction of the camera unit due to vibration during use.

<Modification example>
In the above-described embodiment of the present invention, the housing is composed of two parts, but may be composed of three or more parts. Further, in the above-described embodiment of the present invention, the top cover 120 and the bottom cover 140 may be fixed by using claw fitting or adhesion.

Further, in the above-described embodiment of the present invention, the lens protection member 110 may be fixed by bonding or using another component together with another waterproof member. Further, in the above-described embodiment of the present invention, the control board 300 and the sensor board 240 may be electrically connected by using a flexible board, a flat cable, a thin coaxial cable, or a relay board.

Further, in the above-described embodiment of the present invention, the image pickup substrate 240 and the lens holder 230 may be fixed by using screws. Further, in the above-described embodiment of the present invention, silicon rubber may be used for the elastic member 180.

Further, in the above-described embodiment of the present invention, the lens cover 210 may be configured to transfer the heat of the sensor substrate to the bottom cover 140 by using aluminum die casting or the like. Further, in the above-described embodiment of the present invention, the inner wall surface may be used for fitting the guide portion of the base member 160 and the pressing member 170.

Further, in the above-described embodiment of the present invention, the pressing member 170 may be created by using a resin molded part or an aluminum die-cast part. Further, in the above-described embodiment of the present invention, another component for heat dissipation and friction adjustment may be provided between the lens cover 210 and the first receiving portion and the second receiving portion.

100 network camera (imaging device)
120 Top cover (cover part)
140 Bottom cover (base part)
160 Base member (holding member)
170 Pressing member 180 Elastic member (urging member)
190 Cover member (camera cover)
200 Camera unit 210 Lens cover 220 Lens 230 Lens holder 240 Imaging board 250 Wire 300 Control board

Claims (23)

A housing consisting of a base and a cover,
A camera unit that is inside the housing and is arranged on the base unit,
A camera cover that is inside the housing, is arranged on the base portion, contacts the camera portion, and covers the camera portion.
When the cover portion is attached to the base portion, it is provided with an urging member that is deformed by being pressed by the cover portion and urges the camera cover.
An imaging device characterized in that the frictional force between the camera unit and the camera cover is increased by increasing the urging force from the urging member to the camera cover due to the deformation of the urging member. The camera unit can rotate in at least one of the pan direction and the tilt direction.
The imaging device according to claim 1, wherein the camera unit is rotatably held by the base unit and the camera cover. The base portion has a substantially spherical first receiving portion that holds the camera portion, and the camera cover has a substantially spherical second receiving portion that holds the camera portion. The imaging device according to claim 1 or 2. The imaging device according to claim 3, wherein the first receiving portion and the second receiving portion are in spherical contact with the camera portion having a substantially spherical shape. The camera unit can rotate in the pan direction about the pan axis.
The imaging device according to any one of claims 1 to 4, wherein the direction in which the urging member is pressed by the cover portion is substantially parallel to the pan axis. Any one of claims 1 to 5, wherein the direction in which the cover portion presses the urging member has a constant angle with respect to the vertical direction of the installation surface of the housing. The imaging apparatus according to. 4. The image pickup apparatus according to item 1. The image pickup apparatus according to claim 7, wherein the camera cover has a flange portion held by the first cylindrical holding portion. The imaging device according to claim 8, wherein the urging member is arranged on the flange portion. The imaging device according to any one of claims 1 to 9, wherein the urging member has a substantially circular shape. The frictional force between the camera cover and the camera portion after the cover portion is attached to the base portion is based on the frictional force between the camera cover and the camera portion before the cover portion is attached to the base portion. The imaging device according to any one of claims 1 to 10, characterized in that it is large. The imaging device according to any one of claims 1 to 11, wherein the cover portion has a dome cover. A pressing member that presses the urging member and comes into contact with the cover portion is further provided.
The imaging device according to any one of claims 1 to 12, wherein the urging member is pressed by the cover portion via the pressing member. The imaging device according to claim 13, wherein the pressing member has a protrusion that comes into contact with the cover portion. A holding member for holding the pressing member is further provided.
The holding member has a guide portion for movably holding the pressing member.
The imaging device according to claim 13, wherein the outer surface of the pressing member is guided by the guide portion. The camera unit can rotate in the pan direction about a pan axis that is tilted with respect to the installation surface of the image pickup device, and the direction in which the urging member is pressed by the pressing member is substantially parallel to the pan axis. The imaging apparatus according to any one of claims 13 to 15, wherein the image pickup apparatus is characterized by the above. The imaging device according to any one of claims 13 to 15, wherein the pressing member has a substantially circular shape. The imaging device according to claim 1, wherein the cover portion has a pressing rib that presses the urging member. The imaging device according to claim 18, wherein the urging member has a phase fixing portion for determining a rotation phase at the time of attachment. The imaging device according to claim 19, wherein the holding member has a notch portion corresponding to the phase fixing portion. The imaging apparatus according to any one of claims 18 to 20, wherein the urging member is composed of a wave washer and has a peak portion and a valley portion. The imaging device according to claim 21, wherein the pressing ribs are arranged so as to press a mountain portion of the urging member. The imaging device according to claim 18, wherein the tip of the pressing rib is substantially perpendicular to the pan axis.

Images