JP2018050247A - Monitor camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a monitor camera capable of preventing the entry of a finger into a recessed part provided in a pan angle, in a tilt rotation part in which a tilt angle is supported by the pan angle so as to freely rotate.SOLUTION: A monitor camera 300 comprises: an angle base 11 fixed to a surface to be fixed, and having a pan shaft; a pan angle 83 supported by the angle base 11 so as to freely pan-rotate around the pan shaft; a tilt angle 79 having a camera mounting part 49 at one end and a neck part 51 at the other end, the neck part 51 being supported by the pan angle 83 so as to freely tilt-rotate around a tilt shaft 53 orthogonal to the pan shaft; a camera part 17 mounted on the camera mounting part 49 of the tilt angle 79; a recessed part 25 that avoids interference with the neck part 51 of the tilt-rotated tilt angle 79 formed on the pan angle 83; and an insertion restricting rib 81 formed on the neck part 51 in parallel with a face orthogonal to the tilt shaft 53 and disposed in the recessed part 25.SELECTED DRAWING: Figure 19

Description

  The present invention relates to a surveillance camera.

  For example, the surveillance camera disclosed in Patent Document 1 is known as a configuration in which components such as a light source mounting substrate, a heat sink, and a lens to which an image sensor is attached are covered with a cover case.

  In this type of surveillance camera, a cover case is fixed to a fixed surface via an angle base, a pan angle, and a tilt angle. The angle base is fixed to a fixed surface (for example, a ceiling or a wall surface) and has a pan axis perpendicular to the fixed surface. The pan angle is supported by the angle base so that the pan can rotate about the pan axis. The tilt angle has a cover case mounting portion for attaching to the cover case at one end and a neck portion at the other end, and this neck portion is supported by the pan angle so that it can be tilted and rotated about a tilt axis perpendicular to the pan axis. The For example, when restrictions such as twisting of the wiring are removed, the rotation structure can be rotated in an angle range of about 360 ° for pan rotation and in an angle range of about 90 ° for tilt rotation. As a result, the surveillance camera can be installed with the lens facing the desired pan direction or tilt direction by rotating the cover case around the pan axis and the tilt axis.

JP 2013-37050 A

  In the conventional surveillance camera including Patent Document 1, the angle range of the tilt rotation in the tilt angle is about 90 °. In recent years, surveillance cameras are sometimes installed on a wall or the like above an entrance of a store or a building. In this case, there is a demand to make the tilt rotation angle range larger than 90 ° in consideration of including the entrance / exit part of a store or building in the imaging range of the surveillance camera.

  However, when the angle range of the tilt rotation is larger than 90 °, the concave portion for avoiding interference with the neck portion of the tilt angle formed in the pan angle becomes large. For this reason, a surveillance camera with a large tilt rotation angle range has a problem that it is easier for human fingers to enter the recesses than the conventional surveillance camera (that is, the tilt rotation angle range is 90 °). Arise.

  The present invention has been devised in view of the above situation, and in a tilt rotation unit that rotatably supports the neck portion of the tilt angle at the pan angle, the finger of the finger to the recess provided in the pan angle is avoided in order to avoid interference with the neck portion. It aims at providing the surveillance camera which can suppress entering.

  The present invention includes a base portion fixed to a fixed surface and having a pan axis perpendicular to the fixed surface, a pan rotating portion supported by the base portion so as to be able to rotate around the pan axis, and at one end A tilt rotation unit having a camera attachment unit and a neck at the other end, the neck being supported by the pan rotation unit so as to be rotatable around a tilt axis perpendicular to the pan axis; and a lens And a camera part connected to the tilt rotating part, a rib formed on the neck part parallel to a plane orthogonal to the tilt axis, and a pan rotating part. A surveillance camera comprising: a recess that approaches the rib according to the tilt rotation of the tilt rotation unit.

  Further, the present invention provides a base portion that is fixed to a fixed surface and has a pan axis perpendicular to the fixed surface, and a pan rotating portion that is supported by the base portion so as to be rotatable about the pan axis. A tilt rotating portion having a camera mounting portion at one end and a neck portion at the other end, the neck portion being supported by the pan rotating portion so as to be rotatable around a tilt axis perpendicular to the pan axis; and a lens; A camera unit coupled to the tilt rotation unit by being attached to the camera mounting unit; a recess formed in the pan rotation unit and approaching the neck according to the tilt rotation of the tilt rotation unit; There is provided a surveillance camera comprising: a rib extending in a direction along the pan axis and formed in the concave portion; and a rib advance / retreat hole formed in the neck portion through which the rib advances and retreats.

  Further, the present invention provides a base portion that is fixed to a fixed surface and has a pan axis perpendicular to the fixed surface, and a pan rotating portion that is supported by the base portion so as to be rotatable about the pan axis. A tilt rotating portion having a camera mounting portion at one end and a neck portion at the other end, the neck portion being supported by the pan rotating portion so as to be rotatable around a tilt axis perpendicular to the pan axis; and a lens; A camera unit coupled to the tilt rotation unit by being attached to the camera mounting unit; a recess formed in the pan rotation unit and approaching the neck according to the tilt rotation of the tilt rotation unit; A clogging wall formed in the recess and narrowing a gap between the neck and the clogging wall formed in the neck and in response to a tilt rotation of the tilt rotation unit by denting an outer periphery of the neck inward in the radial direction; Reduce interference It includes a reduced diameter portion that, the, to provide a surveillance camera.

The perspective view of the surveillance camera of 1st Embodiment Bottom view of the surveillance camera shown in FIG. 1 is an exploded perspective view of the surveillance camera shown in FIG. Enlarged view of the main part showing the rotation range of the tilt angle Side view of the inside of the left pan angle Side view of the inside of the right pan angle Tilt angle perspective view AA sectional view of FIG. Left side view of tilt angle Bottom view of tilt angle Bottom view of pan angle 1 is a perspective view of the surveillance camera shown in FIG. 1 when the tilt angle is rotated by approximately 90 °. The perspective view of the surveillance camera of the modification when the tilt angle is rotated by approximately 90 ° Side view of a modified surveillance camera when the tilt angle is not tilted The principal part perspective view of the surveillance camera of the modification when the tilt angle is rotated about 100 degrees The perspective view when the tilt angle of the surveillance camera of the second embodiment is rotated by approximately 90 ° Bottom view of tilt angle shown in FIG. The bottom view which notched a part of pan angle shown in FIG. The perspective view when the tilt angle of the surveillance camera of the third embodiment is rotated by approximately 90 ° Left side view of the tilt angle shown in FIG. 19 is a bottom view of the tilt angle shown in FIG. Bottom view of the pan angle shown in FIG. The perspective view when the tilt angle of the surveillance camera of the fourth embodiment is rotated by approximately 90 ° Bottom view of the tilt angle shown in FIG. The front view which looked at the tilt angle shown in FIG. 24 from the camera attaching part side The bottom view which notched a part of pan angle shown in FIG.

  Hereinafter, an embodiment that specifically discloses a surveillance camera according to the present invention (hereinafter referred to as “the present embodiment”) will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed descriptions of already well-known matters and repeated descriptions for substantially the same configuration may be omitted. This is to avoid the following description from becoming unnecessarily redundant and to facilitate understanding by those skilled in the art. The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

(First embodiment)
First, the surveillance camera 100 of the first embodiment will be described.

  FIG. 1 is a perspective view of a monitoring camera 100 according to the first embodiment. In the present specification, the up, down, front, back, left, and right directions follow the directions of the arrows shown in FIG.

  The surveillance camera 100 according to the present embodiment includes an angle base 11 as an example of a base unit, a pan angle 13 as an example of a pan rotation unit, a tilt angle 15 as an example of a tilt rotation unit, a camera unit 17, and a rib. As an example, the insertion suppression rib 19 (see FIG. 2), the blocking wall 21 (see FIG. 2), and the rib advance / retreat groove 23 (see FIG. 2) are included.

  The surveillance camera 100 shown in FIG. 1 is installed with, for example, a wall surface or the like above or obliquely above an entrance (automatic door or the like) of a store or a building. However, the monitoring camera 100 is not limited to the fixed surface being installed on the wall surface described above, and may be installed with the ceiling as the fixed surface, for example. The monitoring camera 100 is arranged in consideration of including the entrance / exit part of a store, a building or the like in the imaging range of the monitoring camera 100 without fail.

  That is, the surveillance camera 100 is configured to be capable of both pan rotation and tilt rotation, which will be described later. For example, the angle range of tilt rotation can be larger than 90 ° (for example, 0 ° to 100 °). Thereby, for example, when the wall surface is fixed above or obliquely above the fixed surface (for example, an automatic door of an entrance / exit of a store or a building), the monitoring camera 100 can photograph the vicinity of the entrance extensively and in detail. Yes, it can help ensure security.

  FIG. 2 is a bottom view of the monitoring camera 100 shown in FIG.

  In the monitoring camera 100, the concave portion 25 of the pan angle 13 is disposed on the lower side in a state where the camera unit 17 is oriented in the horizontal direction (for example, the front-rear direction or the left-right direction in FIG. 1). The direction of the recess 25 is the lower side in FIG. 2, but may be other than the lower side depending on the rotation direction of the pan angle 13. The recess 25 is covered with the closing wall 21. A rib advance / retreat groove 23, which is an example of a rib advance / retreat hole, is formed in the closing wall 21 by cutting it into a U-shape. In the rib advance / retreat groove 23, an insertion restraining rib 19 formed on the tilt angle 15 is disposed so as to advance and retreat.

  FIG. 3 is an exploded perspective view of the monitoring camera 100 shown in FIG.

  The angle base 11 as an example of the base portion is formed in a square plate shape, for example. The back surface of the angle base 11 is fixed to a fixed surface (for example, a wall surface or a ceiling). The front surface of the angle base 11 is covered with a base cover 27 (see FIG. 1). A pan shaft through hole 29 is formed in the base cover 27. At the center of the front surface of the angle base 11, a pan shaft 31 perpendicular to the fixed surface is integrally provided so as to protrude forward. The pan shaft 31 projects forward from the pan shaft through hole 29 of the base cover 27 that covers the front surface of the angle base 11. The pan shaft 31 has a circumferential groove 35 formed in the pan shaft outer peripheral surface 33. A pan rotation fixing screw 45 (described later) that engages with the tilt angle 15 is engaged with the circumferential groove 35.

  On the front surface of the angle base 11, a notch forming circle 37 is formed concentrically with the pan shaft 31 and outside the pan shaft 31 in the radial direction. In the notch formation circle 37, a plurality of indentations in the circumferential direction are formed by knurls. The notch formation circle 37 constitutes a part of a knurling click mechanism. The knurling click mechanism is a so-called moderation mechanism.

  The pan angle 13 as an example of the pan rotation unit is formed in a substantially cylindrical shape. The pan angle 13 includes a pair of a left pan angle 39 and a right pan angle 41 that are halved by a plane including the axis. The left pan angle 39 and the right pan angle 41 are coupled together by a pan angle coupling screw 43. The pan angle 13 coupled together is supported by the angle base 11 so that the pan can rotate about the pan shaft 31. The above-described pan rotation fixing screw 45 is screwed to the side surfaces of the left pan angle 39 and the right pan angle 41. The pan rotation fixing screw 45 is fixed to the rotation of the pan angle 13 with respect to the pan shaft 31 by being tightened in the circumferential groove 35 of the pan shaft 31.

  The pan angle rear end face 47 is provided with a notch forming circle (not shown) in an annular shape. This indentation circle is pressed against the indentation circle 37 of the angle base 11 when the pan angle 13 is attached to the pan shaft 31 and the pan rotation fixing screw 45 is appropriately tightened. The pressed notch forming circles can be allowed to rotate step by step by applying a predetermined rotational force. The indentation circles can fix the rotation of the pan axis by tightening the pan rotation fixing screw 45 after adjusting the imaging range. This step (1 pitch) is provided, for example, every 1.8 °, and corresponds to the angular resolution in the pan rotation of the pan angle 13. For example, when a notch is formed every 1.8 °, a pan rotation of one turn (that is, 360 °) is obtained after 200 rotations. The pair of notch formation circles 37 constitutes a knurling click mechanism that is a moderation mechanism.

  A tilt angle 15 as an example of a tilt rotation unit has a camera mounting portion 49 at one end. The camera mounting portion 49 has a conical side surface in which the front is the large diameter side and the rear is the small diameter side. The camera mounting portion 49 has an opening at the front which is one end and a neck portion 51 at the rear which is the other end. The neck 51 is formed with an arcuate outer peripheral surface 55 centered on the tilt shaft 53 at the rear end. The neck portion 51 has a pair of parallel side neck portions 57 that sandwich the axis of the camera mounting portion 49 from the left and right. A tilt shaft through hole 60 (see FIG. 7) penetrates the left and right neck side surfaces 57 perpendicularly to the neck side surface 57. A tilt shaft 53 that is inserted into the pan angle 13 from the right direction (in other words, inserted from the right pan angle 41) passes through the tilt shaft through hole 60. The tilt shaft 53 inserted into the tilt shaft through hole 59 (see FIG. 6) of the right pan angle 41 passes through the tilt shaft through hole 60 of the tilt angle 15. The tilt shaft 53 that has passed through the tilt shaft through hole 60 is screwed and fixed to the tilt shaft fixing hole 58 (see FIG. 5) of the left pan angle 39 at the insertion tip. As a result, the tilt angle 15 is supported by the pan angle 13 so that the neck 51 is rotatable about the tilt axis 53 orthogonal to the pan axis 31.

  The camera unit 17 includes a lens 61 that collects light on an imaging device (not shown), and a rear end surface on the opposite side of the lens 61 is attached to the camera attachment unit 49 of the tilt angle 15. A fixing screw hole 65 (see FIG. 7) for inserting the camera fixing screw 63 is formed at both ends in the diameter direction in the camera mounting portion 49. The camera portion 17 is fixed to the camera mounting portion 49 by a rear end protruding portion (not shown) inserted into the camera mounting portion 49 being screwed to the camera fixing screw 63. In other words, the camera unit 17 is connected to the tilt angle 15 by being attached to the camera attachment portion 49 on the rear end surface opposite to the lens 61.

  FIG. 4 is an enlarged view of a main part showing the rotation range of the tilt angle 15.

  In the monitoring camera 100, the angle range θ of the tilt rotation of the tilt angle 15 is set to a maximum of 100 °, for example. The angle range θ of the tilt rotation is a range in which the tilt angle 15 and the center of the pan axis 31 coincide with each other at 0 °, and the tilt angle 15 is rotated downward by 100 ° therefrom. Thereby, when the angle base 11 is attached to, for example, a vertical wall surface, the monitoring camera 100 can capture an image closer to the wall surface than just below.

  FIG. 5 is a side view of the inside of the left pan angle 39.

  A tilt shaft fixing hole 58 into which the insertion tip of the tilt shaft 53 is screwed is formed on the inner surface of the left pan angle 39. The tilt shaft fixing hole 58 is bottomed and does not penetrate the outer surface of the left pan angle 39. A notch forming circle 67 is formed on the inner surface of the left pan angle 39 by a concentric circle of the tilt shaft fixing hole 58. In the notch formation circle 67, a plurality of indentations in the circumferential direction are formed by knurls. In the present embodiment, the step is formed in the radial direction around the tilt axis 53 at an angle of, for example, 1.8 ° as described above. This notch formation circle 67 constitutes a part of a knurling click mechanism. The knurling click mechanism is the same moderation mechanism as described above.

  FIG. 6 is a side view of the inside of the right pan angle 41.

  The right pan angle 41 is combined with the left pan angle 39 to form a tilt angle 15. That is, the left pan angle 39 and the right pan angle 41 are each formed as a half body constituting the pan angle 13. In the right pan angle 41, a tilt shaft through hole 59 is formed. The tilt shaft 53 passes through the tilt shaft through hole 59. The tilt shaft 53 passing through the tilt shaft through hole 59 is screwed into the tilt shaft fixing hole 58 of the left pan angle 39 as described above.

  FIG. 7 is a perspective view of the tilt angle 15.

  A reduced diameter portion 68 is formed in the neck portion 51 of the tilt angle 15. The reduced diameter portion 68 is formed by denting the outer periphery of the neck portion 51 on the closing wall 21 side inward in the radial direction. The reduced diameter portion 68 reduces the interference with the closing wall 21 according to the tilt rotation of the tilt shaft 53 by denting the outer periphery of the neck portion 51.

  8 is a cross-sectional view taken along the line AA in FIG.

  The neck 51 of the tilt angle 15 is sandwiched between a pair of left pan angle 39 and right pan angle 41. A tilt shaft 53 passes through the neck 51 sandwiched between the left pan angle 39 and the right pan angle 41. In this state, the neck 51 of the tilt angle 15 is in contact with the notch formation circle 67 of the left pan angle 39 at the left neck side surface 57.

  FIG. 9 is a left side view of the tilt angle 15.

  On the left neck side surface 57 of the tilt angle 15, a notch forming circle 67 is provided in an annular shape. The notch forming circle 67 is pressed by the notch forming circle 67 of the left pan angle 39 when the left pan angle 39 and the right pan angle 41 sandwich the tilt angle 15 and the tilt shaft 53 is appropriately tightened. The pressed notch forming circles can be allowed to rotate step by step by applying a predetermined rotational force. The tilt angle 15 can fix the tilt rotation by tightening the tilt shaft 53 after adjusting the imaging range. The pair of notch formation circles 67 constitutes a knurling click mechanism that is a moderation mechanism.

  FIG. 10 is a bottom view of the tilt angle 15.

  In the tilt angle 15, an insertion suppression rib 19 is formed on the lower surface side of the neck portion 51. The insertion suppression rib 19 is formed in the neck portion 51 in parallel with a plane orthogonal to the tilt shaft 53. The insertion suppressing rib 19 is disposed in the recess 25. In other words, the insertion suppressing rib 19 approaches the concave portion 25 formed in the pan angle 13 when the tilt angle 15 rotates by, for example, 100 °.

  FIG. 11 is a bottom view of the pan angle 13.

  A neck housing opening 69 is formed on the lower surfaces of the left pan angle 39 and the right pan angle 41. The neck accommodating opening 69 accommodates the neck 51 of the tilt angle 15. The rear of the neck housing opening 69 is a recess 25. The recess 25 is formed in the pan angle 13 and has an opening shape that avoids interference with the neck 51 of the tilt angle 15 that has been tilted and rotated.

  In the present embodiment, a closing wall 21 is formed in the recess 25 inward of the pan angle 13. The blocking wall 21 is provided at a position where it does not interfere with the neck portion 51 of the tilt angle 15 that has been tilt-rotated. That is, the closing wall 21 is a closing portion that covers the inside of the pan angle 13. A rib advance / retreat groove 23 in which the insertion restraining rib 19 advances and retreats is formed in the closing wall 21.

  FIG. 10 is a perspective view of the surveillance camera 100 shown in FIG. 1 when the tilt angle 15 is rotated by approximately 90 °.

  When the surveillance camera 100 is configured such that the neck 51 is not provided with the reduced diameter portion 68, the gap between the recess 25 and the neck 51 is closed by the blocking wall 21. At this time, the outer diameter of the neck portion 51 on the side of the closing wall 21 becomes larger due to the absence of the reduced diameter portion 68, so that the neck portion 51 quickly interferes with the closing wall 21 when tilted. For example, the tilt angle 15 cannot be rotated by 90 degrees or more (for example, 100 degrees). The limit angle of the tilt rotation range at this time is approximately 90 °. On the other hand, the surveillance camera 100 of the present embodiment is provided with the reduced diameter portion 68 that reduces the interference with the closing wall 21, so that the tilt rotation possible range until it interferes with the closing wall 21 when tilting is rotated. Can be enlarged. In the present embodiment, by providing the reduced diameter portion 68 at the neck portion 51, the tiltable range can be expanded by approximately 10 °. That is, the limit angle of the tilt rotation range can be made approximately 100 °.

  In addition, when the surveillance camera 100 is rotated by approximately 90 ° (for example, 100 °), the insertion suppression rib 19 enters a state in which it substantially enters the inside of the pan angle 13 from the rib advance / retreat groove 23. At this time, the recessed portion 25 is prevented from entering a human finger by the closing wall 21 and the insertion suppressing rib 19. On the other hand, in the surveillance camera 100, when the tilt angle 15 reaches the 0 ° position shown in FIG. 2, the insertion suppression rib 19 is moved from the rib advance / retreat groove 23 to the outside of the pan angle 13. The concave portion 25 opened at the rear end of the neck portion is prevented from entering fingers by the closing wall 21 even if the rib advance / retreat groove 23 is present. Furthermore, the closing wall 21 and the outer peripheral surface 55 of the neck portion 51 prevent the fingers from entering.

  Further, the surveillance camera 100 can reinforce the neck portion 51 that has been reduced in diameter by the reduced diameter portion 68 by providing the insertion suppressing rib 19 in the reduced diameter portion 68, and can ensure strength.

  Next, the operation of the monitoring camera 100 of this embodiment will be described.

  In the surveillance camera 100 of the present embodiment, the neck portion 51 of the tilt angle 15 is supported by the pan angle 13 via the tilt shaft 53 so as to be tiltable and rotatable. The neck portion 51 is formed to have an arcuate outer peripheral surface 55 with the tilt shaft 53 as the center. In the monitoring camera 100, when the angle base 11 is fixed to a fixed surface in the vertical direction, when the tilt angle 15 is rotated by 90 °, the lens 61 of the camera unit 17 faces directly below. In this case, the recess 25 formed in the pan angle 13 is wide open from the neck 51.

  In addition, when the surveillance camera 100 can be rotated within a tilt rotation angle range in which the tilt angle 15 is 90 ° or more (for example, 100 °), the concave portion 25 is 90 ° in order to avoid interference with the neck portion 51. It is necessary to ensure a larger rotational direction than in the case of. As a result, the concave portion 25 becomes larger by the increase in the secured space. Even when the tilt angle 15 is oriented in the horizontal direction of 0 °, the concave portion 25 opens widely from the neck portion 51. Although it depends on the outer diameter of the neck 51, the gap is an area where fingers can easily enter in the outer diameter of the neck 51 in consideration of the knurling step width and the like.

  Therefore, in the monitoring camera 100, the insertion suppression rib 19 formed in the neck portion 51 is disposed in the recess 25. The insertion suppression rib 19 is formed in parallel to a plane orthogonal to the tilt shaft 53 and is disposed in the recess 25. That is, the insertion suppression rib 19 approaches the recess 25 formed in the pan angle 13 when the tilt angle 15 rotates by, for example, 100 °.

  In the present embodiment, as shown in FIG. 12, the recess 25 is covered with the closing wall 21, and a rib advance / retreat groove 23 in which the insertion suppressing rib 19 advances and retreats is formed in the closing wall 21. Thereby, the surveillance camera 100 is configured such that the blocking wall 21 and the insertion restraining rib 19 are disposed in the recess 25 so that fingers do not easily enter the recess 25.

  In addition, the surveillance camera 100 can set the tilt rotation direction with a fine tilt rotation angle. That is, it is possible to increase the setting resolution of the imaging range in the tilt direction while suppressing the entry of fingers.

  The surveillance camera 100 can replace the lens 61 with a telephoto lens. When a telephoto lens is used, if the tilt angle 15 changes slightly (for example, about 3.6 °), the imaging range of the subject changes greatly. For this reason, it is preferable that the moderation mechanism for angle setting in the monitoring camera 100 (for example, a knurling click mechanism) has a small adjustment width. However, the knurling step has a limit in reducing it due to manufacturing restrictions. Moreover, if the increment of the click mechanism by knurling becomes too small, the holding force for holding at the set angle decreases. For this reason, the notch has a certain size. When the step has a certain size and the resolution is increased, a large number of steps must be arranged in the circumferential direction. That is, the radius of the notch forming circle 37 of the moderation mechanism is increased. This leads to an increase in the radius of the arcuate outer peripheral surface 55 around the tilt axis 53 of the neck portion 51. If the radius of the outer peripheral surface 55 of the neck part 51 becomes large, the area of the recessed part 25 will become large. That is, it becomes easy for fingers to enter.

  In other words, the setting resolution of the imaging range can be increased if the recess 25 can be allowed to increase to some extent. The surveillance camera 100 can suppress the entry of fingers by providing the insertion suppression rib 19. Therefore, since there is no restriction on the enlargement of the concave portion 25, the outer peripheral surface 55 of the neck portion 51 can be formed with a desired radius, and the notch formation circle 67 can be enlarged. Can do.

  In the surveillance camera 100, the blocking wall 21 is formed in the recess 25. A rib advance / retreat groove 23 in which the insertion restraining rib 19 advances and retreats is formed in the closing wall 21. The insertion suppression rib 19 is disposed in the rib advance / retreat groove 23. The recess 25 can reliably prevent the fingers from entering due to the insertion suppressing rib 19 and the rib advance / retreat groove 23.

  In the surveillance camera 100, the tilt rotation angle range of the tilt angle 15 is 100 °. As a result, when the surveillance camera 100 is installed on, for example, a wall portion above the entrance / exit, the entrance / exit portion that could not be included when the angle range was 90 ° could be reliably included in the imaging range.

Next, a modification of the first embodiment will be described.
FIG. 13 is a perspective view of a modified monitoring camera 100A when the tilt angle 15 is rotated by approximately 90 °.

  In the monitoring camera 100A of the modified example, the insertion suppressing rib 19 is not formed on the neck portion 51 of the tilt angle 15A. Therefore, only the reduced diameter portion 68 is formed in the neck portion 51. Also, the pan angle 13A has no rib advancement / retraction groove 23 formed in each of the closing walls 21A of the left pan angle 39A and the right pan angle 41A. In the closing wall 21A of the pan angle 13A, the front edge 22 is disposed close to the reduced diameter portion 68 of the tilt angle 15A.

  Here, in the monitoring camera 100A, the closing wall 21A is continuously formed as a part of the outer wall of the pan angle 13A. For this reason, on the external appearance, the boundary (broken line in the figure) between the recess 25 and the closing wall 21A is not visible. The monitoring camera 100A can be formed with a clean appearance design by eliminating the boundary between the recess 25 and the closing wall 21A or by narrowing the gap between the recess 25 and the neck 51 by the closing wall 21A. Other configurations are the same as those of the monitoring camera 100.

  FIG. 14 is a side view of a modified monitoring camera 100A when the tilt angle 15A is not tilted.

  In the monitoring camera 100A, when the tilt angle 15A is in the horizontal posture shown in FIG. 14, the lower end of the reduced diameter portion 68 is disposed so as to coincide with the neck portion accommodating opening 69. In this state, the outer peripheral surface 55 (see FIG. 10) of the neck portion 51 is disposed close to the front edge 22 of the closing wall 21A. That is, it is difficult for fingers to enter between the outer peripheral surface 55 and the front edge 22.

  FIG. 15 is a perspective view of a main part of a monitoring camera 100A of a modified example when the tilt angle 15 is rotated by approximately 100 °.

  When the surveillance camera 100A is rotated by tilt, the reduced diameter portion 68 hits the front edge 22 of the blocking wall 21A, and further tilt rotation is restricted. The tilt rotation angle at this time is approximately 0 ° from 0 ° in the horizontal state.

  According to the surveillance camera 100A, the recess 25 is provided in the pan angle 13A, the closing wall 21A is provided in the recess 25, and the reduced diameter portion 68 is provided in the tilt angle 15A. Therefore, the tilt angle rotates and interferes with the closing wall 21A. The tiltable range can be expanded up to. That is, by providing the reduced diameter portion 68 on the neck portion 51, the tiltable range can be increased by approximately 10 ° compared to the case where the reduced diameter portion 68 is not provided. Further, since the insertion suppressing rib 19 and the rib advance / retreat groove 23 are not formed, the structure can be simplified.

(Second Embodiment)
Next, the surveillance camera 200 of the second embodiment will be described.

  FIG. 16 is a perspective view when the tilt angle 71 of the surveillance camera 200 of the second embodiment is rotated by approximately 90 °. In the present embodiment, the same components as those shown in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  In the surveillance camera 200 according to the present embodiment, a pair of parallel insertion suppression ribs 75 are formed in the recess 25 of the pan angle 73 so as to stand in a direction perpendicular to the tilt shaft 53. That is, the insertion suppression rib 75 extends in the direction along the pan axis 31 and is formed in the recess 25 of the pan angle 73.

  FIG. 17 is a bottom view of the tilt angle 15 shown in FIG.

  On the other hand, the tilt angle 71 is formed with a pair of rib advance / retreat grooves 77 on the lower surface of the neck portion 51. In the rib advance / retreat groove 77, a pair of insertion restraining ribs 75 formed in the recess 25 advances and retreats.

  FIG. 18 is a bottom view in which a part of the pan angle 73 shown in FIG. 16 is cut away.

  The pair of insertion suppression ribs 75 are formed at positions that divide the width of the recess 25 in the direction along the tilt axis 53 into approximately three equal parts. Other configurations are the same as those of the first embodiment.

  In the monitoring camera 200, the insertion suppression rib 75 is formed in the recess 25. As the tilt angle 71 rotates, the insertion suppression rib 75 advances and retreats in a rib advance / retreat groove 77 formed in the neck portion 51. The insertion suppressing rib 75 is disposed in the recessed portion 25 while standing in a direction perpendicular to the tilt shaft 53. As a result, the recess 25 is partitioned by the insertion suppressing rib 75 into a plurality of gaps having a size that is difficult for fingers to enter.

  In addition, the surveillance camera 200 can increase the setting resolution of the imaging range in the tilt direction while suppressing the entry of fingers for the same reason as described above.

(Third embodiment)
Next, a monitoring camera 300 according to the third embodiment will be described.

  FIG. 19 is a perspective view when the tilt angle 79 of the surveillance camera 300 of the third embodiment is rotated by approximately 90 °. In the present embodiment, the same components as those shown in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  The surveillance camera 300 of this embodiment has an insertion suppression rib 81 at the neck 51 of the tilt angle 79.

  20 is a left side view of the tilt angle 79 shown in FIG.

  The insertion suppression rib 81 is formed in the neck portion 51 in parallel with a plane orthogonal to the tilt shaft 53. In the present embodiment, the insertion suppression rib 81 is formed in a curved plate shape obtained by dividing a substantially ellipse along the long axis.

  FIG. 21 is a bottom view of the tilt angle 79 shown in FIG.

  The pair of insertion restraining ribs 81 is formed to hang from the lower surface of the neck portion 51. The insertion suppression rib 81 is formed continuously from the camera mounting portion 49 of the tilt angle 79 to the rear end of the neck portion 51.

  FIG. 22 is a bottom view of the pan angle 13 shown in FIG.

  In the present embodiment, the closing wall 21 or the like is not formed in the recess 25 of the pan angle 83. Only a pair of parallel insertion restraining ribs 81 are disposed on the tilt angle 79. The insertion suppression rib 81 divides the recess 25 into three parts.

  In this surveillance camera 300, a pair of insertion restraining ribs 81 is disposed in the recess 25. The insertion suppression rib 81 is formed in parallel to a plane orthogonal to the tilt shaft 53 and is disposed at the tilt angle 79. As a result, the recess 25 is partitioned by the insertion suppression rib 81 into a plurality of gaps having a size that suppresses the entry of fingers.

  In addition, for the same reason as described above, the monitoring camera 300 can increase the setting resolution of the imaging range in the tilt direction while suppressing the entry of fingers.

(Fourth embodiment)
Next, a monitoring camera 400 according to the fourth embodiment will be described.

  FIG. 23 is a perspective view when the tilt angle 15 of the surveillance camera 400 according to the fourth embodiment is rotated by approximately 90 °. In the present embodiment, the same components as those shown in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  The surveillance camera 400 of this embodiment is provided with a gate-shaped insertion restraining rib 85 in the recess 25.

  24 is a bottom view of the tilt angle 87 shown in FIG.

  In the surveillance camera 400, a rib advance / retreat hole 89 through which the insertion restraining rib 85 advances / retreats is formed in the neck portion 51 instead of the rib advance / retreat groove 77 of the second embodiment.

  FIG. 25 is a front view of the tilt angle 87 shown in FIG. 24 as viewed from the camera mounting portion side.

  In the surveillance camera 400, a stopper wall 91 that abuts against the insertion restraining rib 85 is provided on the back side in the rib advance / retreat hole 89 of the tilt angle 87.

  In the second embodiment, the stopper wall 91 can also be provided on the inner side of the rib advance / retreat groove 77 in the tilt angle 71 when the rib advance / retreat groove 77 is an opening. Accordingly, the surveillance camera 400 or the surveillance camera 200 can prevent the insertion restraining rib 85 from entering the rib advance / retreat hole 89 more than necessary when the tilt angle 15 is rotated by, for example, 100 °. Cables that pass through can be protected. Furthermore, even when the tilt angle 15 is not tilted (see, for example, FIG. 1), it is possible to prevent the human fingers from hitting the stopper wall 91 and thereby deeply entering the rib advance / retreat hole 89 or the rib advance / retreat groove 23. The stopper wall 91 can obtain the same effect with respect to the monitoring camera 200.

  26 is a bottom view in which a part of the pan angle 93 shown in FIG. 23 is cut away.

  The insertion suppression rib 85 can be formed in a gate shape by connecting the protruding tips of the pair of parallel insertion suppression ribs 75 of the second embodiment with a connecting portion 95.

  In this surveillance camera 400, a rib advance / retreat hole 89 is formed in the neck portion 51. An insertion restraining rib 85 provided in the recess 25 advances and retreats in the rib advance / retreat hole 89. The insertion restraining rib 85 extends upright in a direction perpendicular to the tilt shaft 53 and is disposed in the recess 25. That is, the insertion suppression rib 85 extends in the direction along the pan axis 31 and is formed in the recess 25 of the pan angle 93. As a result, the recess 25 is partitioned by the insertion suppressing rib 85 into a plurality of gaps having a size that is difficult for fingers to enter.

  In addition, the surveillance camera 400 can increase the setting resolution of the imaging range in the tilt direction while preventing the fingers from entering due to the same reason as described above.

  Further, in this surveillance camera 400, the protruding tips of the pair of insertion restraining ribs 85 provided in the recess 25 are connected by the connecting portion 95 to form a gate shape. Thereby, the intensity | strength of the insertion suppression rib 85 can be raised.

  Further, in the surveillance camera 400, when the tilt angle 87 is tilted, the insertion suppressing rib 85 formed in the recess 25 enters the rib advance / retreat hole 89 of the tilt angle 87. When the tilt angle 87 reaches the tilt rotation angle range, the insertion suppressing rib 85 abuts against the stopper wall 91 and restricts the tilt rotation of the tilt angle 87 beyond that. Therefore, the surveillance camera 400 can restrict the angle range of the tilt rotation in the tilt angle 87 by using the insertion suppressing rib 85 without increasing the number of parts and with a relatively simple structure.

  Therefore, according to the surveillance camera of the present embodiment, in the tilt rotation unit that rotatably supports the neck portion 51 of the tilt angle at the pan angle, in order to avoid interference with the neck portion 51, The entry of fingers can be prevented.

11 Angle base (base part)
13, 13A, 73, 83, 93 Pan angle (pan rotation part)
15, 15A, 71, 79, 87 Tilt angle (tilt rotating part)
17 Camera part 19, 75, 81, 85 Insertion suppression rib (rib)
21, 21A Blocking wall 23, 77 Rib advance / retreat groove (rib advance / retreat hole)
25 concave portion 31 pan shaft 49 camera mounting portion 51 neck portion 53 tilt shaft 61 lens 68 reduced diameter portion 89 rib advance / retreat hole 91 stopper wall 95 connecting portion 100, 100A, 200, 300, 400 surveillance camera

Claims (7)

A base portion fixed to a fixed surface and having a pan axis perpendicular to the fixed surface;
A pan rotating unit supported by the base unit so as to be rotatable about the pan axis;
A tilt rotation unit having a camera attachment part at one end and a neck part at the other end, the neck part being supported by the pan rotation part so as to be rotatable around a tilt axis perpendicular to the pan axis;
A camera unit having a lens and connected to the tilt rotation unit by attaching the rear end surface opposite to the lens to the camera mounting unit;
A rib formed on the neck parallel to a plane perpendicular to the tilt axis;
A recess formed in the pan rotation part and approaching the rib in accordance with a tilt rotation of the tilt rotation part,
Surveillance camera. A base portion fixed to a fixed surface and having a pan axis perpendicular to the fixed surface;
A pan rotating unit supported by the base unit so as to be rotatable about the pan axis;
A tilt rotation unit having a camera attachment part at one end and a neck part at the other end, the neck part being supported by the pan rotation part so as to be rotatable around a tilt axis perpendicular to the pan axis;
A camera unit having a lens and connected to the tilt rotation unit by attaching the rear end surface opposite to the lens to the camera mounting unit;
A recess formed in the pan rotation part and approaching the neck part according to a tilt rotation of the tilt rotation part;
A rib formed in the recess extending in a direction along the pan axis;
A rib advance / retreat hole formed in the neck portion, wherein the rib advances and retreats,
Surveillance camera. A base portion fixed to a fixed surface and having a pan axis perpendicular to the fixed surface;
A pan rotating unit supported by the base unit so as to be rotatable about the pan axis;
A tilt rotation unit having a camera attachment part at one end and a neck part at the other end, the neck part being supported by the pan rotation part so as to be rotatable around a tilt axis perpendicular to the pan axis;
A camera unit having a lens and connected to the tilt rotation unit by mounting to the camera mounting unit;
A recess formed in the pan rotation part and approaching the neck part according to a tilt rotation of the tilt rotation part;
A blocking wall that is formed in the recess and narrows the gap with the neck;
A reduced-diameter portion that is formed in the neck portion and reduces interference with the closing wall according to the tilt rotation of the tilt rotation portion by denting the outer periphery of the neck portion radially inward.
Surveillance camera. Having a rib formed on the reduced diameter portion in parallel with the plane perpendicular to the tilt axis;
The surveillance camera according to claim 3, wherein a rib advance / retreat groove in which the rib advances and retreats is formed in the closing wall. The recess is provided with a pair of parallel ribs,
The surveillance camera according to claim 2, wherein projecting tips of a pair of parallel ribs are connected by a connecting portion.   The surveillance camera according to claim 1, wherein an angle range of tilt rotation of the tilt rotation unit is 0 ° to 100 °.   The surveillance camera according to claim 2, wherein a stopper wall that comes into contact with the rib is provided on the rear side in the rib advance / retreat hole of the tilt rotation unit.

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