JP5593997B2 - Camera support structure - Google Patents

Description

  The present invention relates to a camera support structure built in an intercom.

  As this type of camera support structure, there is one disclosed in Patent Document 1. What is disclosed here is a front housing to which a camera is attached, a rear housing having an operation unit that can variably operate the shooting direction of the camera and forming a holding member together with the front hanging, and a holding member that is swingably supported. A front case and a rear case are provided, and the photographing direction of the camera can be adjusted by operating the operation unit exposed from the rear case.

JP 2009-38454 A

  By the way, in a camera built in this type of intercom, depending on the application, the viewing angle is made wider such that the horizontal direction is wider than the vertical direction, or the vertical direction is made wider relative to the horizontal direction. Something like that has been done. For example, in the case of a residential interphone, the viewing angle of the camera is selected to be wider in the horizontal direction than in the vertical direction on the assumption that there is not always a person in front of the interphone. In contrast, railroad intercoms installed in stations are expected to be used by an unspecified number of people, from children to adults to wheelchair users. The viewing angle of the camera is selected so that the vertical direction is wider than the horizontal direction in consideration of the difference in height position. However, the conventional camera support structure as described above does not have a structure in which the camera holding member can select the viewing angle of the camera. For this reason, when trying to correspond to the case where it is used as an intercom for housing and the case where it is used as an intercom for railway business, the manufacturer has to prepare two types of camera holding members, which only increases the manufacturing cost. However, there is a problem that inventory management becomes complicated.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to reduce manufacturing costs and to reduce inventory management work.

In order to achieve this object, the present invention provides a camera support structure for supporting a camera in a housing via a holding member, wherein the holding member is formed by two housings, one housing and the other housing. The camera is fixed to one of the two housings, and the one housing and the other housing are rotated by 0 ° and 90 ° in the circumferential direction around the optical axis of the camera. An attachment / detachment means for attaching / detaching the two housings is provided at the two positions, and the attachment / detachment means includes a pair of first engagement means provided on the one housing and comprising a plurality of engagement portions, and the other The first engagement means includes two sets of second and third engagement means, each of which includes a plurality of engagement portions provided in a housing and selectively engaged with the first engagement means. Multiple of One of the engaging portions is formed in a shape different from that of the other engaging portions, and one of the plurality of engaging portions of the second and third engaging means is set to the other engaging portion. It is formed in a shape different from the part .

  According to the present invention, in any one of the above-described inventions, an identification unit that identifies each other is provided in each of the one engaging portion of each of the second and third engaging units.

  According to the present invention, in any one of the above inventions, the camera is attached to the housing via a printed circuit board, and a position of a predetermined component mounted on the printed circuit board is indicated on the housing, and the printing is performed. A mark for attaching the substrate to a predetermined position of the housing is provided.

  According to the present invention, in any one of the above inventions, the camera incorporated in the residential intercom is incorporated in the railway business intercom so that the viewing angle is wider in the horizontal direction than in the vertical direction. The camera is held by the holding member so that the viewing angle is wider in the vertical direction than in the horizontal direction.

  According to the present invention, since two viewing angles can be selected with one holding member, it is not necessary to prepare two types of holding members as in the prior art, so that the manufacturing cost can be reduced, Inventory management can be reduced.

  According to one of the inventions described above, the mounting position of the other housing is not mistaken for one housing.

  According to one of the inventions, the camera can be attached to the housing without error.

It is a front view of the intercom which implemented the support structure of the camera concerning the present invention. It is a disassembled perspective view of the intercom which implemented the support structure of the camera which concerns on this invention. It is the III-III sectional view taken on the line in FIG. The front housing in the support structure of the camera which concerns on this invention is shown, The figure (A) is a front view, The figure (B) is a side view, The figure (C) is the perspective view seen from the front side, The figure (D) ) Is a perspective view seen from the back side. The rear housing in the support structure of the camera which concerns on this invention is shown, The figure (A) is a front view, The figure (B) is a side view, The figure (C) is the perspective view seen from the front side, The figure (D) ) Is a perspective view seen from the back side. FIG. 4A is a rear view of the front housing in the camera support structure according to the present invention, and FIG. 4B is a rear view of a state in which the camera is attached to the front housing via a printed board. FIG. 4A is a front view of the rear housing in the camera support structure according to the present invention, and FIG. 4B shows the position of the engagement protrusion of the front housing attached to the rear housing when used as a door phone for a house. FIG. 6C is a front view showing the position of the engaging protrusion of the front housing attached to the rear housing when used as a railway interphone. It is a side view of the holding member in the support structure of the camera concerning the present invention. It is a schematic diagram for demonstrating the viewing angle of a camera in the case of using it as a door phone for housing | casing in the support structure of the camera which concerns on this invention. FIG. 2A is a schematic diagram for explaining the viewing angle of the camera when used as a railway interphone in the camera support structure according to the present invention, and FIG. 1B is used as a railway interphone. It is a schematic diagram for demonstrating the data of the to-be-photographed object with the camera.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  The interphone generally indicated by reference numeral 1 in FIG. 2 has a housing formed by a front case 2 and a rear case 3 that covers an opening on the rear side (arrow B direction) of the front case 2. A camera unit 4 that is sandwiched and supported so as to be swingable is provided. The front plate 5 of the front case 2 is provided with a step 7 for attaching the transparent plate 6, and a through hole 8 is provided at the center of the step 7. Reference numeral 9 denotes a push button attached to the recess 10 provided on the front plate 5, and is urged in a direction protruding from the recess 10 by the elastic force of the compression coil spring 11.

  A plurality of ribs 13 are integrally projected on the back surface side of the peripheral edge of the through hole 8, and these ribs 13 are in contact with a hemispherical portion 30 of a front housing 26 described later as shown in FIG. 3. A contact portion 13a having a curved cross section is provided.

  As shown in FIGS. 2 and 5, four studs 15 provided with screw insertion holes are integrally projected at the four corners on the rear surface side of the rear case 3. Reference numeral 16 denotes a bulging portion formed so as to bulge inside the rear case 3, and is formed on the upper end side of the inclined bulging surface in the shape of a concave mirror facing a hemispherical portion 51 of the rear housing 27 described later. An opposing portion 17 is provided, and a guide groove 18 formed in a T shape is provided on the lower end side.

  The opposing portion 17 is provided with a rib 19 having a curved cross section that contacts the hemispherical portion 51 of the rear housing 27 and four engagement recesses 20 for selectively engaging engagement protrusions 54 described later. It has been. Another bulging portion 21 is provided above the bulging portion 16, and the bulging portion 21 is formed with a curved contact portion that contacts the hemispherical portion 51 of the rear housing 27 together with the rib 19. 22 is provided.

  As shown in FIG. 2, the camera unit 4 is schematically configured from a front housing 26 and a rear housing 27 that constitute the holding member 25, and a camera 28 that is housed and held in both the housings 26 and 27.

  As shown in FIG. 4, the front housing 26 is provided at the front side (arrow A direction) of a hemispherical portion 30 formed in a mortar shape, and at the open end of the hemispherical portion 30 on the rear side (arrow B direction). It is formed with the collar 31. A through hole 32 is provided on the front side (in the direction of arrow A) of the hemispherical portion 30. Two sets of second and third engaging means 34 and 38 are provided on the collar 31.

  That is, as shown in FIG. 7B, the collar 31 has an equiangular angle (α) in the circumferential direction around the optical axis 29 of the camera 28 when the camera 28 is attached to the front housing 26 as will be described later. = 120 °) Three engaging holes 33A, 33B and 33C are provided. Engagement projections 34A, 34B, 34C as a plurality of engaging portions constituting the second engaging means 34 as the attaching / detaching means are respectively provided on the end edges of the engaging holes 33A, 33B, 33C on the front side. Projecting toward (arrow A direction). Among them, the width L1 of the engaging protrusion 34A is formed larger than the width L2 of the other engaging protrusions 34B and 34C as shown in FIG. Is provided with a discriminating part 35 which is formed in a crescent shape in plan view and signifies a house intercom.

  Further, as shown in FIG. 7B, the cage 31 is provided with three engaging holes 37A, 37B, and 37C that are equiangular (α = 120 °) in the circumferential direction around the optical axis 29. It has been. Engagement protrusions 38A, 38B, and 38C as a plurality of engaging portions constituting the third engaging means 38 as the attaching / detaching means are respectively provided on the end edges of the engaging holes 37A, 37B, and 37C. Projecting toward (arrow A direction). Of these, the width L1 of the engaging protrusion 38A is formed larger than the width L2 of the other engaging protrusions 38B and 38C as shown in FIG. Is provided with a discriminating portion 39 that is formed in a trapezoidal shape in plan view and that can be visually discerned with respect to the discriminating portion 35 provided on the engaging protrusion 34A.

  As will be described later, the second engaging means 34 (34A, 34B, 34C) is engaged with the elastic engaging pieces 60A, 60B, 60C as the attaching / detaching means of the rear housing 27. The intercom 1 is used as a residential door phone, and the third engagement means 38 (38A, 38B, 38C) is engaged with the elastic engagement pieces 60A, 60B, 60C of the rear housing 27, so that It will be used as an intercom. Each of these second engaging means 34 (34A, 34B, 34C) and each of the third engaging means 38 (38A, 38B, 38C) are circumferentially connected to each other as shown in FIG. Is out of phase by an angle β (90 °).

  Further, as shown in FIG. 6 (A), concentric ring portions 40 and 41 protrude from the back surface of the hemispherical portion 30 of the front housing 26, and the small-diameter ring portion 40 has the same diameter as the through-hole 32. Is formed. On the end face of the large-diameter ring portion 41, columns 42 and columns 43 having positioning protrusions 42a at the tips protruding in the direction of arrow B are alternately arranged at equal angles (90 °) in the circumferential direction. Has been. In addition, on the back surface of the collar 31 of the front housing 26, a mark 45 having a triangular shape that determines a mounting position of a printed circuit board (described later) supported by the columns 42 and 43 is provided.

As shown in FIG. 2, the base end portion of the camera 28 is mounted on a printed wiring board 47, and the camera 28 is attached to the front housing 26 via the printed wiring board 47. That is, the printed wiring board 47 is formed in a rectangular shape as shown in FIG. 6 (B), and the protrusions for positioning the columns 42 of the front housing 26 described above are formed in two even positions located on the diagonal lines of the four corners. Fitting holes 48 and 48 for fitting the child 42a are provided. A connector 49 as a predetermined component is mounted on the printed wiring board 47, and the printed wiring board 47 has fitting holes 48, 48 in the positioning protrusion 42 a so that the connector 49 corresponds to the mark 45. By fitting, the camera 28 is attached to a predetermined position of the front housing 26 .

  As shown in FIG. 5, the rear housing 27 is provided at the rear side (arrow B direction) of a hemispherical portion 51 formed in a hemispherical shape, and at the opening end of the hemispherical portion 51 on the front side (arrow A direction). The flange 52 and the flange 31 of the front housing 26 described above are joined to each other. Engagement that selectively engages with the above-described four engagement recesses 20 of the rear case 3 is provided at the top of the hemispherical portion 51 via an elastically deformable tongue 53 as shown in FIG. A protrusion 54 is provided. On the inner surface of the hemispherical surface portion 51, two sets of four support protrusions 55 each having a 90 ° phase shift in the circumferential direction are provided as shown in FIG.

  A bulging portion 57 is provided at a lower portion of the flange 52, and an operation portion 58 is integrally projected from the bulging portion 57. As shown in FIG. 7A, a pair of first engaging means 60 is provided at the peripheral edge of the flange 52 at an equal angle (α = 120 °) in the circumferential direction around the optical axis 29 as shown in FIG. The three elastic engaging pieces 60A, 60B, 60C comprising a plurality of engaging portions project forward (in the direction of arrow A in FIG. 5B), and these elastic engaging pieces 60A, 60B, 60C. Claws 61A, 61B, and 61C that selectively engage with the engaging protrusions 34A to 34C or the engaging protrusions 38A to 38C of the front housing 26 are provided at the front end portion of the front housing 26.

  Next, the case where the interphone 1 configured in this way is used as a residential door phone will be described. First, the fitting holes 48, 48 of the printed wiring board 47 on which the camera 28 is mounted are fitted into the positioning protrusions 42a, 42a so that the connector 49 corresponds to the mark 45 as shown in FIG. The camera 28 is attached to the front housing 26 by combining. As described above, since the mark 45 is provided to attach the camera 28 to the front housing 26, the rotational position of the camera 28 around the optical axis 29 is not mistaken.

  Next, the second engagement means 34 (34A, 34B, 34C) of the front housing 26 shown in FIG. 7B is connected to the elastic engagement pieces 60A, 60B, 60C of the rear housing 27 shown in FIG. By engaging the claws 61A, 61B, 61C, the two housings 26, 27 are joined to form the holding member 25 in a state where the flanges 31, 52 are in contact with each other as shown in FIG. At this time, since the identification portion 35 is provided in the engagement protrusion 34A, the engagement protrusion with which the elastic engagement piece 60A is engaged can be selected without fail and in a short time. Further, the width L1 of the engagement protrusion 34A is changed with respect to the width L2 of the other engagement protrusions 34B and 34C, and the width l1 of the elastic engagement piece 60A is changed with respect to the width l2 of the other elastic engagement pieces 60B and 60C. By changing the above, it is possible to prevent erroneous engagement between the engagement protrusion and the elastic engagement piece.

  By forming the holding member 25, the printed wiring board 47 is sandwiched between the support posts 42 and 43 of the front housing 26 and the support protrusion 55 of the rear housing 27, so that the lens of the camera 28 (not shown) is front-mounted. The camera unit 4 is formed by being held by the holding member 25 so as to face the through hole 32 of the housing 26.

  Next, as shown in FIG. 3, the hemispherical portion 30 of the front housing 26 is made to be a rib of the front case 2 so that the through holes 32 of the front housing 26 constituting the camera unit 4 coincide with the through holes 8 of the front case 2. It is made to contact 13 contact parts 13a. In this state, the engagement protrusion 54 of the rear housing 27 is engaged with any one of the four engagement recesses 20 and the operation portion 58 of the rear housing 27 faces the guide groove 18 of the rear case 3. Then, the opening of the front case 2 is closed by the rear case 3. Next, the screw is inserted through the screw hole of the stud 15 of the rear case 3 and screwed into the stud (not shown) of the front case 2, whereby the front case 2 and the rear case 3 are coupled to form the interphone 1. Is done.

  In the interphone 1 formed in this way, the viewing angle of the camera 28 is wider in the horizontal direction than in the vertical direction as shown in FIG. That is, the range that can be captured by the camera 28 is wide in the horizontal direction with respect to the vertical direction, and it is possible to capture not only the person 70 standing in front of the intercom 1 but also a person 70A standing around the front or surrounding people 70A. Therefore, the person using the interphone is effective for use in a residential door phone that does not always stand in front of the interphone.

  Next, a case where the interphone 1 is used as a railway business intercom will be described. In this case, since the front housing 26 to which the camera 28 is attached is used as a door phone for a house as described above, as shown in FIG. Turn clockwise. In this state, the third engagement means 38 (38A, 38B, 38C) of the front housing 26 is connected to the claws 61A, 61B of the elastic engagement pieces 60A, 60B, 60C of the rear housing 27 shown in FIG. By engaging 61C, the housings 26 and 27 are joined to form the holding member 25. Thereafter, as in the case of the above-described door phone for a house, the holding member 25 is accommodated in the front case 2 and the rear case 3, and the cases 2 and 3 are combined to form the interphone 1.

  In the interphone 1 formed in this way, the camera 28 is supported by the front case 2 in a state in which the camera 28 is rotated about the optical axis 29 by 90 ° as compared with the case where the intercom 1 is used as a residential door phone. Therefore, as shown in FIG. 10A, the viewing angle of the camera 28 is wider in the vertical direction than in the horizontal direction. That is, the shooting range of the camera 28 is wider in the vertical direction than in the horizontal direction, and the person 70 photographed by the camera 28 is photographed in the entire vertical direction of the body, from children to adults and wheelchair users. In a railway business interphone installed in a station premises that is expected to be used by an unspecified large number of people, it is possible to photograph a face even by a difference in face height position. In this case, the image data 70B of the person 70 photographed by the camera 28 is captured in a state in which the camera 28 is rotated by 90 ° as shown in FIG. A person image displayed on a connected monitor (not shown) is corrected so as to stand up as shown in FIG. 5A by software provided on the interphone 1 side or the monitor side.

  In this way, attachment means 60, 34, and 38 are provided for attaching and detaching the front housing 26 and the rear housing 27 at two positions that are rotated by 0 ° and 90 ° in the circumferential direction around the optical axis 29 of the camera 28. Thus, since two viewing angles can be selected with one holding member 25, it is not necessary to prepare two types of holding members as in the prior art, so that manufacturing costs can be reduced and inventory management can be performed. Can be reduced.

  In the present embodiment, the rear housing 27 is provided with a set of first engaging means 60, and the front housing 26 is provided with two sets of second and third engaging means 34, 38. The front housing 26 may be provided with a set of engaging means, and the rear housing 27 may be provided with two sets of engaging means. In addition, although three engaging portions are provided for each engaging means, two or four or more may be provided as necessary. In short, the engaging portions constituting the set of first engaging means It suffices that the number corresponds to the number of engaging portions constituting the two sets of second engaging means.

  DESCRIPTION OF SYMBOLS 1 ... Interphone, 2 ... Front case, 3 ... Rear case, 4 ... Camera unit, 25 ... Holding member, 26 ... Front housing, 27 ... Rear housing, 28 ... Camera, 29 ... Optical axis, 34 (34A, 34B, 34C) ) ... second engaging means (detaching means), 35, 39 ... identification part, 38 (38A, 38B, 38C) ... third engaging means (detaching means), 45 ... mark, 60 (60A, 60B, 60C)... First engagement means (detachment means).

Claims (4)

A camera support structure for supporting a camera via a holding member in a housing,
The holding member is formed by two housings, one housing and the other housing;
Fixing the camera to one of the two housings;
The one housing and the other housing are provided with attachment / detachment means for attaching / detaching the two housings at two positions rotated about 0 ° and 90 ° in the circumferential direction around the optical axis of the camera ,
The attaching / detaching means is selectively engaged with a pair of first engaging means provided in the one housing and comprising a plurality of engaging portions, and provided in the other housing. Two sets of second and third engaging means composed of a plurality of engaging portions,
One of the plurality of engaging portions of the first engaging means is formed in a shape different from the other engaging portions,
A support structure for a camera, wherein one of a plurality of engaging portions of each of the second and third engaging means is formed in a shape different from other engaging portions . The support structure of the second and third camera of claim 1, wherein each of the one engaging portion providing the identifying means for identifying the mutual engagement means. The camera is attached to the housing via a printed circuit board, the position of a predetermined component mounted on the printed circuit board is indicated on the housing, and a mark for attaching the printed circuit board to a predetermined position of the housing is provided. The camera support structure according to claim 1 . The camera built in the residential intercom is designed so that the viewing angle is wider in the horizontal direction than in the vertical direction.
And the camera built in the railway business for intercom, as the viewing angle becomes wider vertical direction to the horizontal direction, the support structure of claim 1, wherein the camera characterized in that it is held by the holding member .

Images