JP2012010034A - Box type camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a box type camera for preventing double fall of a holding arm and a cable, reducing an impact on the cable when the holding arm comes off, and reducing a space to be secured for the cable.SOLUTION: A box type camera 1 includes: a box type housing 2 where a camera 3 is attached to the front surface; an arm attachment part 6 which is arranged on the outer surface of the housing 2 and to which a holding arm 7 is attached; and a cable connection part 14 which is arranged within the housing 2 and to which a wiring cable 12 of the camera 3 is connected. The arm attachment part 6 has holding strength to hold the housing 2 only by the holding arm 7. The cable connection part 14 has holding strength to hold the housing 2 only by the cable 12. An arm attachment direction to attach the holding arm 7 to the arm attachment part 6 and a cable connection direction to attach the cable 12 to the cable connection part 14 are mutually set to be the same direction.

Description

  The present invention relates to a box-type camera having a box-type housing, and more particularly to a technique for preventing the box-type camera from falling.

  Conventionally, a box-type camera has been used as a monitoring camera for monitoring a monitoring area. Such a box-type camera is installed on the wall or ceiling of the monitoring area and captures a monitoring image of the monitoring area. When the box-type camera is attached to a wall or ceiling, for example, an attachment arm is used (see, for example, Patent Document 1).

  The conventional attachment arm is attached to the outer surface of the box type camera casing. For example, when the box-type camera is attached to the ceiling, the attachment portion on the camera side of the attachment arm is fixed to the upper surface of the housing, and the attachment portion on the installation surface side of the attachment arm is fixed to the ceiling surface. In this way, the box-type camera is attached to the ceiling while being held by the attachment arm.

JP 2002-290774 A

  However, in the case of a conventional box-type camera, if the mounting arm is unfixed, the box-type camera falls from the ceiling. Usually, a cable for camera wiring extends from the housing of the box-type camera. Therefore, when the mounting arm is unfixed and the box-type camera falls from the ceiling, the impact of the fall is applied to the cable. However, the conventional cable connection structure has a problem that it does not have enough strength to hold the box-type camera housing with only the cable.

  Further, in a conventional box-type camera, a camera is generally provided on the front surface of the housing and a cable is provided on the rear surface of the housing. For example, when a box-type camera is attached to the ceiling, a cable insertion hole is often provided in the ceiling. However, in order to route the cable from the rear surface of the housing to the insertion hole in the ceiling, a certain length of cable is required. Then, if the mounting arm comes off, the housing will fall freely from the position where the housing was held by the mounting arm (high position) to the position where the housing is held by the cable (low position). However, since the length of the cable is long as described above, the free fall length is increased accordingly. As a result, when the housing falls to the position where the housing is held by the cable, the impact (load) applied to the cable becomes large. In the conventional cable connection structure, such a large impact (load) is applied. There was a problem that it was extremely difficult to withstand.

  Furthermore, in the conventional box-type camera, since the cable is routed from the rear surface of the housing as described above, it is necessary to secure a large space for the cable on the rear surface side of the housing. Therefore, there has been a problem that the box-type camera cannot be installed so that the rear surface of the housing is close to the wall surface.

  The present invention has been made in order to solve the above-described conventional problems, and can realize double fall prevention by the holding arm and the cable, and the impact applied to the cable when the holding arm is detached. Another object of the present invention is to provide a box-type camera that can reduce the space required for the cable.

  The box-type camera of the present invention is a box-type housing to which the camera is attached to the front surface, and an arm mounting portion that is provided on the outer surface of the housing and to which a holding arm for holding the housing is attached. The arm mounting portion having a holding strength capable of holding the housing with only the holding arm in a state where the holding arm is fixed to the arm mounting portion, and provided in the housing for wiring of the camera A cable connecting portion to which the cable is connected, the cable connecting portion having a holding strength capable of holding the housing with only the cable in a state where the cable is fixed to the cable connecting portion, and An arm attachment direction in which the holding arm is attached to the arm attachment portion and a cable connection direction in which the cable is attached to the cable connection portion are mutually interchanged. And a set configured in the same direction.

  With this configuration, the box-type camera casing can be held only by the holding arm, and can be held only by the cable. Therefore, in the present invention, double fall prevention by the holding arm and the cable can be realized. For example, even if the holding arm is unfixed, the housing can be held with the cable.

  Moreover, in the present invention, the direction in which the holding arm is attached to the arm attachment portion (arm attachment direction) and the direction in which the cable is connected to the cable connection portion (cable connection direction) are the same direction. The direction of the holding arm) and the direction in which the cable extends (the direction of the cable) are the same, and the holding arm and the cable can be arranged side by side as compared to the case where the direction of the holding arm and the direction of the cable are different. For example, when the holding arm and the cable extend from the top surface of the housing, the holding arm and the cable are connected compared to the case where the holding arm extends from the top surface of the housing and the cable extends from the rear surface of the housing. They can be placed close to each other. If the holding arm is unfixed, the case will fall freely from the position where the case was held by the holding arm to the position where the case is held by the cable. If the holding arm and the cable can be arranged close to each other, the free fall length can be shortened. Therefore, when the holding arm is unfixed, the impact (load) applied to the cable can be reduced when the holding arm is dropped to a position where the housing is held by the cable.

  Further, in the present invention, since the holding arm and the cable can be arranged side by side, the space to be secured for the cable can be reduced as compared with the case where the direction of the holding arm and the direction of the cable are different. For example, when the holding arm extends from the upper surface of the housing and the cable extends from the rear surface of the housing, it is necessary to secure a large space for the cable on the rear surface side of the housing. On the other hand, when the holding arm and the cable extend from the upper surface of the housing, it is not necessary to secure a space for the cable on the rear surface side of the housing. Therefore, for example, it is possible to install a box-type camera so that the rear surface of the housing is close to the wall surface.

  The box-type camera of the present invention is a reinforcing member that is fixed inside the housing and reinforces the holding strength of the cable connecting portion, and the cable connecting portion is connected to the cable connecting direction inside the housing. It has the structure provided with the said reinforcement member which regulates moving along.

  With this configuration, the holding strength of the cable connection portion is reinforced by the reinforcing member fixed inside the housing. For example, when the holding arm is unfixed, the casing is held by the cable. The cable connecting portion to which the cable is fixed is connected to the cable connecting direction inside the casing by the reinforcing member. Movement is regulated. Therefore, the housing can be held with sufficient holding strength even with only the cable.

  In the box-type camera of the present invention, the casing includes a cover that covers the cable connection portion, and the cover is configured to be detachable from the casing.

  With this configuration, when connecting a cable to the cable connecting portion, the work can be performed by removing the cover, so that the cable connecting work can be easily performed. When the cable connection work is completed, the cover can be attached to cover the cable connection portion, so that the appearance can be improved.

  The box-type camera of the present invention has a configuration including a clamp member that binds the holding arm attached to the arm attaching portion and the cable connected to the cable connecting portion.

  With this configuration, the holding arm and the cable can be bundled using the clamp member. In this case, since the holding arm and the cable can be arranged side by side, the holding arm and the cable can be bound without difficulty.

  The present invention can realize the double fall prevention by the holding arm and the cable, can reduce the impact on the cable when the holding arm is detached, and further secure for the cable. It is possible to provide a box-type camera having the effect that the space to be reduced can be reduced.

The perspective view of the box-type camera in embodiment of this invention 1 is an exploded perspective view of a housing of a box-type camera in an embodiment of the present invention. The enlarged view of the cable connection part of the box-type camera in embodiment of this invention Explanatory drawing of the box-type camera (state hold | maintained with the holding arm) of embodiment of this invention Explanatory drawing of the box type camera (state hold | maintained with the cable) of embodiment of this invention Explanatory drawing of the box-type camera of the comparative example (the state held by the holding arm) Explanatory drawing of a box-type camera (held by a cable) of a comparative example Explanatory drawing of the box type camera (state installed in the wall surface) of other embodiments

  Hereinafter, a box-type camera according to an embodiment of the present invention will be described with reference to the drawings. In this embodiment, the case of a box-type camera used for a surveillance camera or the like is illustrated. The box-type camera of the present embodiment is installed on the ceiling in the monitoring area, for example.

  A configuration of a box-type camera according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a box-type camera according to the present embodiment, and FIG. 2 is an exploded perspective view of a housing of the box-type camera. As shown in FIGS. 1 and 2, the box-type camera 1 includes a box-type housing 2 having a substantially rectangular parallelepiped shape. A camera 3 is attached to the front surface of the housing 2. The camera 3 includes a camera lens 4 and a camera unit 5. The camera lens 4 is provided outside the front surface of the housing 2 (see FIG. 1), and the camera unit 5 is provided inside the front surface of the housing 2 (see FIG. 2). Here, the surface to which the camera 3 is attached is called “front surface”.

  An arm mounting portion 6 is provided on the upper surface of the housing 2. A holding arm 7 for holding the box type camera 1 is attached to the arm attaching portion 6. A screw hole 8 is provided in the arm attachment portion 6 (see FIG. 2), and a screw portion 9 is provided at the tip of the holding arm 7 on the camera side (see FIG. 5). The holding arm 7 is fixed to the arm mounting portion 6 by screwing the screw portion 9 of the holding arm 7 into the screw hole 8 of the arm mounting portion 6. A mounting plate 10 is provided at the tip of the holding arm 7 on the opposite side (installation surface side). The mounting plate 10 is screwed to the ceiling surface (installation surface), and the holding arm 7 is fixed to the ceiling surface. The arm mounting portion 6 has sufficient mechanical strength, and the strength (with which the holding arm 7 is fixed to the arm mounting portion 6 can hold the entire weight of the box-type camera 1 with only the holding arm 7 ( Holding strength).

  As shown in FIG. 2, a substrate 11 on which the camera unit 5 is mounted is provided inside the housing 2. The board 11 is provided with a cable connecting portion 14 to which a connector portion 13 at the tip of a cable 12 for camera wiring is connected. For example, the cable 12 for camera wiring is a coaxial cable. The cable 12 is inserted into a cable insertion hole (not shown) provided in the ceiling. For example, the connector part 13 of the cable 12 is a bayonet type connector (BNC plug or the like), and the cable connection part 14 is a bayonet type receptacle (BNC receptacle or the like). The cable connecting portion 14 has sufficient mechanical strength, and the strength (holding strength) that can hold the entire weight of the box-type camera 1 with only the cable 12 in a state where the cable 12 is fixed to the cable connecting portion 14. )have.

  In the present embodiment, the direction in which the holding arm 7 is attached to the arm attachment portion 6 (arm attachment direction) and the direction in which the cable 12 is attached to the cable connection portion 14 (cable connection direction) are the same direction. Is set to In this case, the arm mounting direction and the cable connection direction are set to intersect with the optical axis direction of the camera lens 4 (front-rear direction of the casing 2). Specifically, the vertical direction of the casing 2 is set. Is set to

  Here, the configuration related to the cable connecting portion 14 will be described in detail with reference to the drawings. FIG. 3 is an enlarged explanatory view of the cable connecting portion 14. As shown in FIGS. 2 and 3, a reinforcing member 15 for reinforcing the holding strength of the cable connecting portion 14 is provided inside the housing 2. The reinforcing member 15 is made of a metal plate and is fixed to the inside of the housing 2 by screws. As shown in FIG. 3, the upper portion of the cable connecting portion 14 is composed of a substantially flat flat portion 16 and a protruding portion 17 protruding from the flat portion 16. The reinforcing member 15 is provided with a plate portion 18 parallel to the substrate 11, and the plate portion 18 is provided with an insertion hole 19 through which the protruding portion 17 of the cable connection portion 14 is inserted. The flat surface portion 16 of the cable connecting portion 14 is in contact with the lower surface of the reinforcing member 15, and in this way, the reinforcing member 15 has the cable connecting portion 14 in the vertical direction (cable connecting direction) inside the housing 2. It is restricted from moving along.

  Returning to FIG. 1 and FIG. 2, the description of the housing 2 of the box-type camera 1 will be continued. The housing 2 can be divided into an upper case 20 and a lower case 21. The substrate 11 is fixed to the lower case 21 with screws. The reinforcing member 15 is fixed to both the upper case 20 and the lower case 21 by screwing. A step 22 is provided at the rear of the upper case 20. An insertion hole 23 through which the protruding portion 17 of the cable connection portion 14 is inserted is provided on the upper surface of the step portion 22. Further, a cover 24 for covering the cable connecting portion 14 is attached to the step portion 22. The cover 24 is detachable from the housing 2, and the housing 2 has a substantially rectangular parallelepiped appearance as a whole with the cover 24 attached (see FIG. 1). Further, a notch portion 25 is provided on the upper surface of the cover 24, and the cable 12 connected to the cable connection portion 14 is inserted into the notch portion 25.

  As shown in FIG. 1, the box-type camera 1 includes a clamp member 26 that binds the holding arm 7 and the cable 12 together. The clamp member 26 binds the holding arm 7 attached to the arm attachment portion 6 and the cable 12 connected to the cable connection portion 14. For example, the clamp member 26 is formed of a metal band or a resin band (such as a PP band).

  The operation of the box-type camera 1 according to the embodiment of the present invention configured as described above will be described with reference to the drawings. Here, as a characteristic operation of the present invention, the operation of preventing the fall of the box-type camera 1 will be mainly described.

  FIG. 4 is an explanatory view schematically showing a state in which the box-type camera 1 of the present embodiment is installed on the ceiling surface. As shown in FIG. 4, in this state, the holding arm 7 is fixed to the arm mounting portion 6, and the box-type camera 1 is held by the holding arm 7 while being suspended from the ceiling. Usually, the holding arm 7 is firmly fixed to the arm mounting portion 6. However, the installation worker may forget to fix it firmly. In addition, the fixing of the holding arm 7 may be loosened for many years (for example, due to vibration). Even in such a case, if regular maintenance is performed, it can be found that the holding arm 7 has been loosened and can be fixed again. However, the holding arm 7 may come off from the arm mounting portion 6 when regular maintenance is not performed.

  FIG. 5 is an explanatory diagram schematically showing a state in which the holding arm 7 is detached from the arm attachment portion 6 in the box-type camera 1 of the present embodiment. As shown in FIG. 5, in this state, the box-type camera 1 is held only by the cable 12. In the present embodiment, the arm mounting direction and the cable connection direction face the same direction, and the holding arm 7 and the cable 12 are arranged side by side, so that from the upper surface of the housing 2 to the cable insertion hole on the ceiling The cable 12 can be extended in a straight line, and the length of the cable 12 is minimized. Therefore, the length from the position where the box-type camera 1 is held by the holding arm 7 (high position A) to the position where the box-type camera 1 is held by the cable 12 (low position B), that is, the box-type camera 1. The free fall length (distance between AB) is short.

  This point will be described in detail with a comparative example with reference to the drawings. FIG. 6 is an explanatory diagram schematically showing a state in which the box-type camera 100 of the comparative example is installed on the ceiling surface. As shown in FIG. 6, in the comparative example, a cable connection portion 114 is provided on the rear surface of the housing 102. FIG. 7 is an explanatory view schematically showing a state in which the holding arm 107 is detached from the arm mounting portion 106 in the box-type camera 100 of the comparative example. As shown in FIG. 7, in this comparative example, the arm attachment direction and the cable connection direction are different (approximately 90 ° different directions), and the holding arm 107 and the cable 112 are disposed far away. When extending the cable 112 from the rear surface of the body 102 to the cable insertion hole on the ceiling, it is necessary to bend the cable 112, and a certain length of the cable 112 is required. Therefore, the length from the position where the box-type camera 100 is held by the holding arm 107 (high position A ′) to the position where the cable-type camera 100 is held by the cable 112 (low position B ′), that is, the box type. The free fall length (distance between A'B ') of the camera 100 becomes longer.

  According to the box-type camera 1 of the embodiment of the present invention, double fall prevention by the holding arm 7 and the cable 12 can be realized. Further, the impact applied to the cable 12 when the holding arm 7 is detached can be reduced. Furthermore, the space to be reserved for the cable 12 can be reduced.

  That is, in the present embodiment, the housing 2 of the box-type camera 1 can be held only by the holding arm 7 and can be held only by the cable 12. Therefore, in the box-type camera 1 of the present embodiment, double fall prevention by the holding arm 7 and the cable 12 can be realized. For example, even if the holding arm 7 is not fixed, the housing 2 can be held by the cable 12.

  Moreover, in the present embodiment, the direction in which the holding arm 7 is attached to the arm attachment portion 6 (arm attachment direction) and the direction in which the cable 12 is connected to the cable connection portion 14 (cable connection direction) are the same direction. The direction in which the holding arm 7 extends (the direction of the holding arm 7) and the direction in which the cable 12 extends (the direction of the cable 12) are the same, and the holding arm 7 is different from the case where the direction of the holding arm 7 and the direction of the cable 12 are different. 7 and the cable 12 can be arranged side by side. For example, when the holding arm 7 and the cable 12 extend from the upper surface of the housing 2 as in this embodiment (see FIGS. 4 and 5), the holding arm from the upper surface of the housing 102 as in the comparative example. Compared to the case where the cable 107 extends from the rear surface of the housing 102 (see FIGS. 6 and 7), the holding arm 7 and the cable 12 can be arranged closer to each other.

  When the holding arm 7 is unfixed, the case 2 falls freely from the position A where the case 2 is held by the holding arm 7 to the position B where the case 2 is held by the cable 12. However, if the holding arm 7 and the cable 12 can be arranged close to each other as described above, the free fall length (distance between AB) can be shortened. Therefore, when the holding arm 7 is not fixed, the impact (load) applied to the cable 12 when the cable 12 is dropped to the position where the housing 2 is held can be reduced.

  Furthermore, in this embodiment, since the holding arm 7 and the cable 12 can be arranged side by side, a space to be secured for the cable 12 can be secured compared to the case where the direction of the holding arm 7 and the direction of the cable 12 are different. Can be reduced. For example, when the holding arm 107 extends from the upper surface of the housing 102 and the cable 12 extends from the rear surface of the housing 102 as in the comparative example (see FIGS. 6 and 7), It is necessary to secure a large space for the cable 12 on the side. On the other hand, when the holding arm 7 and the cable 12 extend from the upper surface of the housing 2 as in the present embodiment (see FIGS. 4 and 5), the cable 12 is placed on the rear surface side of the housing 2. No need to secure space for. Therefore, for example, the box-type camera 1 can be installed so that the rear surface of the housing 2 is close to the wall surface (see FIG. 8).

  In the present embodiment, as shown in FIG. 3, the holding strength of the cable connection portion 14 is reinforced by the reinforcing member 15 fixed inside the housing 2. For example, when the holding arm 7 is unfixed, the casing 2 is held by the cable 12. The cable connection portion 14 to which the cable 12 is fixed is connected to the casing 2 by the reinforcing member 15. The movement in the cable connection direction is restricted inside. Therefore, the housing 2 can be held with sufficient holding strength even with the cable 12 alone.

  In the present embodiment, when the cable 12 is connected to the cable connecting portion 14, the cover 24 can be removed and the work can be performed, so that the cable connecting work can be easily performed. When the cable connection work is completed, the cover 24 can be attached to cover the cable connection portion 14, so that the appearance can be improved.

  In the present embodiment, the holding arm 7 and the cable 12 can be bundled using the clamp member 26. In this case, since the holding arm 7 and the cable 12 can be arranged side by side, the holding arm 7 and the cable 12 can be bound without difficulty.

  Although not specifically shown here, the same applies to a mode in which a cable is directly taken out from the camera. In this case, a clamp member can be provided at an appropriate position of the cable in advance (for example, at the time of shipment), and an effect of prompting the installation worker to perform a fall prevention clamp can be expected.

  The embodiments of the present invention have been described above by way of example, but the scope of the present invention is not limited to these embodiments, and can be changed or modified according to the purpose within the scope of the claims. is there.

  FIG. 8 is an explanatory diagram of a box-type camera 1 according to another embodiment of the present invention. Here, the box type camera 1 according to another embodiment will be described mainly with respect to differences from the present embodiment. Unless otherwise specified here, the configurations and operations of the other embodiments are the same as those of the present embodiment.

  As shown in FIG. 8, the box-type camera 1 of other embodiment is installed in a wall surface. In this case, the holding arm 7 is bent at a substantially right angle, the mounting plate 10 of the holding arm 7 is screwed to the wall surface (installation surface), and the holding arm 7 is fixed to the wall surface. Even with the box-type camera 1 of such other embodiments, the same operational effects as the above-described embodiment can be obtained.

  As described above, the box-type camera according to the present invention can realize the double fall prevention by the holding arm and the cable, and reduce the impact on the cable when the holding arm is detached. Furthermore, it has the effect that the space to be secured for the cable can be reduced, and is useful as a surveillance camera or the like.

DESCRIPTION OF SYMBOLS 1 Box type camera 2 Housing | casing 3 Camera 4 Camera lens 5 Camera unit 6 Arm attachment part 7 Holding arm 8 Screw hole 9 Screw part 10 Mounting plate 11 Board | substrate 12 Cable 13 Connector part 14 Cable connection part 15 Reinforcement member 16 Plane part 17 Protrusion Part 18 Plate part 19 Insertion hole 20 Upper case 21 Lower case 22 Step part 23 Insertion hole 24 Cover 25 Notch part 26 Clamp member

Claims (4)

A box-type housing to which the camera is mounted on the front;
An arm mounting portion provided on an outer surface of the housing, to which a holding arm for holding the housing is mounted, wherein the holding arm is fixed to the arm mounting portion, and the holding arm alone The arm mounting portion having a holding strength capable of holding the housing;
A cable connecting portion provided inside the housing to which a cable for wiring the camera is connected, wherein the housing is held only by the cable in a state where the cable is fixed to the cable connecting portion. The cable connection portion having a holding strength that can be;
With
A box-type camera, wherein an arm attachment direction in which the holding arm is attached to the arm attachment portion and a cable connection direction in which the cable is attached to the cable connection portion are set in the same direction.   A reinforcing member that is fixed to the inside of the housing and reinforces the holding strength of the cable connecting portion, and restricts the cable connecting portion from moving along the cable connecting direction inside the housing. The box-type camera according to claim 1, further comprising a reinforcing member.   The box camera according to claim 1, wherein the casing includes a cover that covers the cable connection portion, and the cover is detachable from the casing.   The clamp member which binds the said holding arm attached to the said arm attachment part, and the said cable connected to the said cable connection part was provided, The Claim 1 thru | or 3 characterized by the above-mentioned. Box type camera.