JP3579229B2 - Tilt structure for entrance cordless handset with camera - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
[0002]
The present invention relates to a tilt structure for a front door unit with a camera, and more particularly to a tilt structure for a front door unit with a camera capable of setting a camera unit in a vertical direction by a dial type and performing an operation in the same direction as the setting direction. .
[Prior art]
[0003]
Conventionally, as shown in FIG. 4, a tilt structure for a camera-equipped entrance device is mounted on a camera unit 20 for imaging a visitor and a housing 10 for supporting a fulcrum 29 of the camera unit 20. It has a fixed support 28 and a substrate 60 on which the camera unit 20 is mounted. A lever fitting portion 62 is provided on a back surface 61 of the substrate 60.
[0004]
A lever moving hole 18 is formed in the back surface 19 of the housing 10 so that the resin lever 8 for rotating the camera unit 20 mounted on the substrate 60 in the tilt direction can be moved. An operation unit 81 for operating the lever 8 is disposed between the wall 19 and the wall surface W to which the housing 10 is attached. Protrusions 82 (82 a, 82 b) are protruded from both ends of the operation portion 81 on the housing 10 side, and fitting holes 17 (17 a, 17 b, 17 c) are formed on the back surface 19 of the housing corresponding to the protrusions 82. , 17d,...).
[0005]
When changing the vertical angle (tilt adjustment) of the camera unit 20 for imaging a visitor, the fulcrum 29 of the camera unit 20 is supported by the support 28 fixed to the housing 10, so that the operation unit 81 slides. The camera unit 20 mounted on the substrate 60 pivots about the fulcrum 29 in response to the movement of the lever 8 interlocking with. When the camera unit 20 is slid in the (down) direction and the camera unit 20 is turned in the D (down) direction, the operation unit is slid in the D '(up) direction.
[0006]
When the operation unit is slid in the C ′ direction or the D ′ direction, the protrusions 82 protruding from both ends of the operation unit are fitted into the fitting holes 17 in the corresponding back surface 19 of the housing. In this manner, the tilt adjustment of the camera unit 20 is performed step by step, and the projection 82 and the fitting function of the fitting hole 17 are reliably positioned.
[0007]
When changing the tilt adjustment of the camera unit 20, the vicinity of the center of the operation unit 81 (near the base of the lever) is pressed. Then, the protrusions 82 at both ends of the operation unit 81 are disengaged from the fitting holes 17 due to the resin elasticity near the base of the lever, and the operation unit 81 is slid to adjust the tilt of the camera unit 20 in a desired direction.
[Problems to be solved by the invention]
[0008]
In the conventional tilt structure for a front door with camera, when the camera unit 20 is turned in the C (up) direction, the camera unit 20 and the operation unit 81 are slid in the same manner as the operation unit 81 is slid in the C ′ (down) direction. It has been pointed out that an illusion occurs when the tilt of the camera unit 20 is adjusted because the movement of the camera unit 20 is opposite.
[0009]
In order to change the tilt adjustment of the camera unit 20, by pressing near the center of the operation unit 81 (near the base of the lever) (arrow F), the resin elasticity near the base of the lever 8 causes the two ends of the operation unit 81 to be closed. The projection 82 should be disengaged from the fitting hole 17 (arrow E). However, if it is too strong, a force is exerted not only near the base of the lever 8 but also in the entire operation portion 81 in the direction of arrow F, and the opposite direction (arrow E). Had the drawback of not falling off.
[0010]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described conventional problems, and has excellent operability in which the movement of the camera unit and the operation unit are made to be in the same direction, and the stopper can be easily switched on and off when the tilt adjustment is changed. It is an object of the present invention to provide a tilt structure for an attached entrance device.
[Means for Solving the Problems]
[0011]
The tilt structure for a camera-equipped front door device of the present invention is housed in a housing , provided with a long groove extending in parallel with the optical axis on a side surface of a camera unit that is rotatable around a fulcrum, and is extended from the housing. A dial having a pin that is rotatable about a rotation shaft supported by the dial insertion portion and that is eccentric from the rotation shaft in parallel with the rotation shaft that engages with the long groove and turns the camera unit is provided. When the unit is horizontal, the dial is arranged within a semicircle close to the camera unit .
[0012]
In addition, the dial has a plurality of grooves perforated in the radial direction of the dial on at least one side of both sides of the dial and at least one of the dial insertion portions corresponding to at least one side, and a plurality of grooves on the other side. A projection fitted into the groove protrudes.
[0013]
When the dial is operated, the camera unit is turned up and down around the fulcrum of the camera unit while the pins of the dial are engaged with the long grooves of the camera unit.
[0014]
When the camera unit is horizontal, the pins of the dial are arranged within a semicircle close to the camera unit of the dial.
[0015]
Since the stopper is a combination of the dial insertion part and the unevenness of the dial, the stopper does not come off when a strong force is applied.
BEST MODE FOR CARRYING OUT THE INVENTION
[0016]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a tilt structure for a camera-equipped entrance device according to the present invention will be described in detail with reference to the drawings with reference to an embodiment.
[0017]
As shown in FIG. 1A, the tilt structure for a camera-equipped entrance device according to the present invention includes a camera unit 2 having a long groove 21 which is housed in a housing 1 and has a side surface extending in parallel with the optical axis Ax , and a camera. A dial 3 for turning the camera unit 2 around a fulcrum 2F of the unit 2.
[0018]
The camera unit 2 is mounted on the substrate 6, and a fulcrum 2F of the camera unit 2 fixed to the camera unit 2 or a member 22 fixed to the substrate 6 is supported by a support 12 fixed to the housing 1. The long groove portion 21 formed in the side surface of the second 2 has a length that allows a pin 31 described later to slide when the dial 3 is operated, and is preferably longer than the inner diameter R of the dial 3.
[0019]
The dial 3 is substantially disk-shaped, and has small protrusions for operation on a circumferential portion, and both side surfaces of the disk are inserted into a dial insertion portion 13 extending from the housing 1 for operation. at a position where a portion exits from the dial insertion portion 13, the rotation shaft 3F of the center of the dial 3 is a dial 3 is supported by a dial insertion portion 13 is rotatable about an axis of rotation 3 F. Note that the dial insertion portion 13 has a substantially pocket shape (not shown).
[0020]
Dial 3, a pin 31 which is eccentric from the rotating shaft 3 F that slides long groove portion 21 of the side surface of the camera unit 2 is projected in parallel to its axis of rotation 3F, is engaged with the long groove 21. The position of the pin 31 is arranged within a semicircle C (hatched portion) of the dial 3 near the camera unit when the camera unit 2 is maintained horizontal. The rotation shaft 3F has a length that does not hinder the turning when the camera unit 2 turns.
[0021]
As shown in FIG. 1, at least one of both side surfaces of the disc-shaped dial 3 or one of the pockets 13 corresponding thereto, a plurality of grooves 4, 4,. And a projection 5 fitted on the groove 4 is provided on the other side (in FIG. 1B, the groove 4 is provided on the dial 3 side and the projection 5 is provided on the pocket 13 side). . Since the dial 3 and the dial insertion portion 13 (housing) are made of a synthetic resin, the dial 3 having the groove 4 can be rotated in the pocket having the protrusion 5 by using resin elasticity.
[0022]
Hereinafter, the operation of the tilt structure for a front door with camera of the present invention will be described.
[0023]
When changing the vertical angle (tilt adjustment) of the camera unit 2 for imaging a visitor, the fulcrum 2F of the camera unit 2 is supported by the support 12 fixed to the housing 1, so that the movement of the dial 3 Accordingly, the camera unit 2 mounted on the substrate 6 turns around the fulcrum 2F.
[0024]
As shown in FIG. 2 (b), when the dial 3 is turned in the A '(up) direction, the pin 31 turns the camera unit 2 while moving in the long groove 21 to the left in the drawing, so that the camera unit 2 A (up) direction. When turning the camera unit 2 in the B (down) direction, the dial 3 is turned in the B '(down) direction.
[0025]
In FIG. 2, when the camera unit 2 is horizontal, the pin 31 of the dial 3 is arranged at the upper end in the semicircle C closer to the camera unit and in the middle of the long groove 21 (FIG. 2A). It is suitable for a camera-equipped entrance terminal for turning the camera unit 2 upward as shown in FIG.
[0026]
As shown in FIG. 3A, when the pin 31 of the dial 3 is disposed near the left center of the semicircle C near the camera unit and in the middle of the long groove 21 when the camera unit 2 is horizontal. This is suitable for a camera-equipped front door unit that can both turn the camera unit 2 downward as shown in FIG. 9B and turn it upward (not shown).
[0027]
When the dial 3 is rotated in the direction A 'or B', the projections 5 of the pockets 13 are fitted or removed from the corresponding grooves 4 of the dial 3 as shown in FIGS. 1 (a) and 1 (b). As a result, the stopper can be switched on and off when the tilt adjustment is changed. If a large force is applied, the dial 3 only needs to be increased in rotation angle (= turn of the camera unit 2), and may be returned to a desired position.
【The invention's effect】
[0028]
As is apparent from the above description, according to the tilt structure for a camera-equipped entrance device of the present invention, when the dial is operated, the pin of the dial is engaged with the long groove of the camera unit and the center of the fulcrum of the camera unit is centered. To rotate the camera unit up and down.
[0029]
When the camera unit is horizontal, the pins of the dial are arranged within a semicircle close to the camera unit of the dial.
[0030]
The on / off switching of the stopper at the time of tilt adjustment change is performed according to the concave / convex relationship between the dial insertion portion and the dial. Therefore, even if a large force is applied, the dial can be returned to a desired position only by increasing the rotation angle of the dial.
[Brief description of the drawings]
[0031]
FIG. 1A is a view for explaining a tilt structure for a front door with camera according to the present invention, and FIG. 1B is a partial explanatory view.
FIGS. 2 (a) and 2 (b) are views for explaining the operation of the tilt structure for a front door apparatus with a camera according to the present invention.
FIG. 3 is a diagram illustrating the operation of another embodiment of the present invention.
FIGS. 4A and 4B are views showing a conventional tilt structure for a front door with camera.
[Explanation of symbols]
[0032]
1 ‥ Case 13 ‥ Dial insertion part 2 ‥ Camera unit 2F 支 Camera unit fulcrum 21 ‥ Long groove 3 ‥ Dial 31 ‥ Pin 3F ‥ Dial rotation shaft 4 ‥ Groove 5 ‥ Protrusion C ‥ Dial camera unit semicircle
Ax ‥ Optical axis

Claims (2)

It housed in the housing (1), provided with a fulcrum long groove extending in parallel to the optical axis (Ax) to the side of and about the (2F) pivotable camera unit (2) (21), from said housing The rotary shaft is rotatable about a rotary shaft (3 F ) supported by an extended dial insertion portion (13), and engages with the long groove to rotate the camera unit. A dial (3) having a pin (31) eccentric from an axis is provided, said pin being arranged in the semicircle (C) of the dial near the camera unit when the camera unit is horizontal. A tilt structure for a camera-equipped entrance device , wherein the camera unit and the dial are moved in the same direction . In the dial, a plurality of grooves (4) are formed in at least one of both side surfaces of the dial and one of the dial insertion portions corresponding to the at least one surface along a radial direction of the dial. 3. The tilt structure for a camera-equipped front door device according to claim 1, wherein a projection (5) fitted into the plurality of grooves is provided on the other side.

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