JP2011158708A - Rotation control structure and illuminator for photography including the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotation control structure which achieves space saving of a mechanism and reduction of assembly operation man-hour of the mechanism while holding a wide rotational angle range, and an illuminator for photography including the same. <P>SOLUTION: The rotation control structure includes a body part, a rotation part that is rotatable relative to the body part, and a rotation control unit that controls rotation of the rotation part. A projection provided in the rotation control unit abuts on a locking part provided in the body part or the rotation part, whereby the rotational angle range of the rotation part is controlled. The locking part includes first and second abutting parts and first and second guide parts. When the rotation control unit rotates in a predetermined direction, the projection abuts on the first abutting part through the first guide part to control rotation in the predetermined direction, and when the rotation control unit rotates in a reverse direction to the predetermined direction, the projection abuts on the second abutting part through the second guide part to control rotation in the reverse direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a main body part, a rotation restricting structure that restricts a rotation angle range of a rotating part that rotates with respect to the main body part, and a photographing illumination device including the rotation restricting structure.

  The illumination device for photographing is intended to be used in a situation where the amount of light is insufficient in photographing. If the camera does not have a built-in illumination device, photography is performed with an external illumination device attached to the camera. The external illumination device for photography is divided into a main body part that is attached to the hot shoe of the camera and a rotating part that has a light emitting part, and is usually attached to the camera with the light emitting window of the light emitting part facing the subject. The

  In addition, the photographing illumination device having the bounce function can radiate from the light emitting unit because the light emitting unit can be rotated in the horizontal (left and right) direction and the vertical (up and down) direction with respect to the main body with reference to the facing state. The light can be emitted in a horizontal or vertical direction with respect to the subject. As such an illumination device for photographing, one described in Patent Document 1 is known.

  In the above-described Patent Document 1, the main body portion and a rotating portion that can rotate with respect to the main body portion are connected via a rotating mechanism, and the rotating mechanism rotates in the horizontal direction with respect to the main body portion. The rotating part can also rotate in the horizontal direction with respect to the main body part to change the direction of light emission from the light emitting part. The engaging part provided on the main body part and the engaging part provided on the rotating part come into contact with each other, and the engaging part of the main body part moves in the rotating direction, so that the rotating part rotates in the horizontal direction with respect to the main body part. An angle range is set.

JP 2004-264403 A

  However, since the mechanism described in Patent Document 1 requires a mechanism for moving the locking portion of the main body, parts such as a cover and a screw are included in the mechanism for moving the locking portion of the main body. Will be used. Therefore, as a subject, the mechanism space of the latching | locking part of a main-body part is large, and there are many work man-hours.

  In order to solve the above-described problem, a rotation restriction structure according to the present invention includes a main body portion, a rotation portion that is rotatable with respect to the main body portion, and a rotation restriction unit that restricts rotation of the rotation portion. In the rotation restricting unit configured to restrict a rotation angle range of the rotating part by abutment of a protrusion provided on the unit with a locking part provided on the main body part or the rotating part. The locking portion includes first and second abutting portions and first and second guide portions. When the rotation restricting unit rotates in a predetermined direction, the protrusion portion causes the first guide portion to move. When the first contact portion contacts the first contact portion to restrict rotation in the predetermined direction and rotates in a direction opposite to the predetermined direction, the protrusion portion moves the second guide portion through the second guide portion. Abutting on the abutting part and restricting rotation in the reverse direction Rotation restricting structure characterized and.

  In the present invention, since the locking portion is a simple structure composed of only the guide portion and the abutting portion, the space required for the locking portion of the rotation restricting structure is small, thereby reducing the space of the rotation restricting structure. realizable.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an exterior view of a photographing illumination device, and FIG. 2 is an exploded perspective view of the photographing illumination device according to an embodiment of the present invention.

  As shown in FIGS. 1 and 2, a photographing illumination device according to the present invention includes a main body 1, and a rotating part 2 having a light emitting part 3 that can rotate in the horizontal and vertical directions with respect to the main body 1. A rotation restricting unit 5 is provided in the rotating portion 2 to restrict the rotation of the rotating portion 2 in the horizontal direction relative to the main body 1. Since the rotating unit 2 can rotate in the horizontal direction and the vertical direction with respect to the main body unit 1, the light emitted from the light emitting window 4 of the light emitting unit 3 can be varied horizontally or vertically with respect to the subject. It has become.

  The main body 1 includes a pair of main body rear part 1a and main body front part 1b formed of a mold member. The main body part 1 includes various units (not shown) necessary for driving the device such as an electric circuit and a power supply unit. Is built in and can be attached to a camera body (not shown) via a hot shoe. In order to secure an arrangement space for the electric circuit and the power supply unit in the main body, it is desirable that the space occupied by other members is small. Therefore, it is necessary to reduce the space occupied by the rotation restricting mechanism.

  The rotation restriction in the horizontal rotation direction in the present embodiment will be described in detail in a rotation restriction mechanism of the rotation restriction unit 5 described later.

FIG. 3 is an enlarged view of the rotation regulating unit 5 and the locking portion 10 in FIG.
As shown in FIG. 3, the rotation restricting unit 5 includes a rotation restricting plate 6 having a substantially circular cross section, a fixing plate 7 having a substantially circular cross section, a spring washer 9, and a stepped screw 8. Further, the rotation restricting plate 6 has a protrusion. A portion 6a is provided. The protrusion 6a abuts on an abutting portion 11 described later provided on the rear portion 1a of the main body, thereby restricting the rotation of the rotating portion 2 in the horizontal direction relative to the main body 1.

  A rotation restricting plate 6, a fixed plate 7, and a spring washer 9 are fixed to the rotating unit 2 via stepped screws 8, and rotate integrally with the rotating unit 2 in accordance with the movement of the rotating unit 2. Since play is provided between the fixed plate 7 and the spring washer 9, the rotation restricting plate 6 is movable in a direction intersecting the rotation surface of the rotation restricting unit 5.

  The protrusion 6a and the rotation restricting plate 6 are both made of a metal material so as to withstand a predetermined load generated when the protrusion 6a and the contact portion 11 contact or after contact. In the present embodiment, in consideration of the weight of the rotating unit 2 and the light emitting unit 3 on the abutting unit 11 and the force applied when the user rotates the rotating unit, the rotation restricting plate 6 and the protrusion 6a are made of, for example, a steel material. It consists of. Note that the rotation restricting plate 6 and the protrusion 6a may be made of a material having strength equal to or higher than that of steel.

  The locking portion 10 provided on the main body includes a contact portion 11 including a first contact surface 11a and a second contact surface 11b, and a guide portion 12 including a first guide portion 12a and a second guide portion 12b. Have. The contact portions 11 (the first contact surface 11a and the second contact surface 11b) are saddle-shaped metals whose ends are bent in opposite directions and are designed to withstand a predetermined load.

  For example, in the present embodiment, the contact portion 11 is made of stainless steel so that the contact portion 11 can withstand the weight of the rotating portion 2 and the light emitting portion 3, or a load applied during a rotation operation by a person. Durability is improved compared with what comprises only 10 resin whole. In addition, the contact part 11 should just be metal. Further, the contact portion 11 having sufficient durability against a predetermined load generated when the rotation of the rotating portion is restricted may be integrally formed with the main body portion 1 together with the guide portion 12 as a resin part.

  The rotation restricting plate 6 is restricted in rotation by the protrusion 6a coming into contact with the contact portion 11, and the protrusion 6a is different from the contact portion 11 in the left rotation and the right rotation as will be described later. . For example, when the rotation restricting plate 6 rotates to the left (arrow 13 in FIG. 3), the protrusion 6a contacts the contact surface 11a, and when it rotates to the right (arrow 14 in FIG. 3), the protrusion 6a contacts the contact surface 11b. It has become.

  Here, the rotation restriction mechanism of the rotation restriction unit 5 will be described in detail.

  When the rotating part 2 rotates counterclockwise with respect to the rear part 1a of the main body part (arrow 13 in FIG. 3), the rotation restricting plate 5 is moved from the spring washer 9 to the fixed plate 7 (arrow 15 in FIG. 4) as shown in FIG. By receiving the force, the entire rotation restricting plate 6 is pressed against the fixed plate 7 by the force, so that it is held horizontally with respect to the rear side 1a of the main body. Further, the rotation restricting plate 6 is reliably guided to the abutting portion 11a by the guide portion 12b provided with the protruding portion 6a at the main body rear portion 1a. Then, when the protrusion 6a finally comes into contact with the contact portion 11a, further rotation of the rotation restricting plate 6 in the left rotation direction is restricted.

  On the contrary, when the rotating part 2 rotates clockwise with respect to the rear part 1a of the main body part (arrow 14 in FIG. 3), as shown in FIG. By moving along the slope of 12a, it moves in the direction perpendicular to the rotational direction, and the entire rotation restricting plate 6 is inclined obliquely with respect to the rear portion 1a of the main body. Then, when the protrusion 6a finally comes into contact with the contact portion 11b, further rotation of the rotation restricting plate 6 in the right rotation direction is restricted.

    As mentioned above, since the latching | locking part 10 of the main-body part rear part 1a is a simple structure comprised only by the contact part 11 and the guide part 12, the space which the latching | locking part 10 of rotation control structures requires is small. This makes it possible to save space in the rotation regulation structure.

  Further, since the guide portion 12 of the locking portion 10 is formed integrally with the rear portion 1a of the main body as a resinous part, the assembly work on the main body side of the rotation restricting structure is only to attach the contact portion 11. In addition, the number of parts and assembly man-hours can be reduced. In addition, the latching | locking part may exist in the main-body part front part 1b.

  The rotation angle range of the rotating part is determined by the width of the protrusion 6a, the distance between the contact surfaces 11a and 11b, and the shape and arrangement of the guide part 12. Since the width of the protruding portion 6a, the distance between the contact surfaces 11a and 11b, and the shape and arrangement of the guide portion 12 can be arbitrarily determined, it is possible to adjust the rotation restricting plate 6 so that it can rotate 180 ° or more. is there. For example, as shown in FIG. 6, by increasing the distance between the two contact parts from FIG. 6 (a) to FIG. 6 (b), in addition to the 180 ° left rotation and right rotation described above, the rotation angle is further increased. The range can be expanded, and it is possible to rotate 180 ° or more in the left and right directions.

As described above, according to the illuminating device for photographing according to the present embodiment, a wide rotation angle range can be realized with a simple structure which has not been conventionally provided.
In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention.

  Further, the rotation restricting structure described above is not limited to the illumination device for photographing, but can be applied to a product with a rotating operation.

FIG. 1 is an exterior view of a photographing illumination device. FIG. 2 is an exploded perspective view of the photographing illumination device according to the embodiment of the present invention. FIG. 3 is an enlarged view of the rotation restricting unit 5 and the locking portion 10. FIG. 4 is a view showing a rotation restricting mechanism during left rotation. FIG. 5 is a view showing a rotation restricting mechanism during right rotation. FIG. 6 is an enlarged view of the contact portion.

DESCRIPTION OF SYMBOLS 1 Main body part 1a Main body part rear part 1b Main body part front part 2 Rotating part 3 Light emitting part 4 Light emitting window 5 Rotation restricting unit 6 Rotation restricting plate 6a Projecting part 7 Fixed plate 8 Stepped screw 9 Spring washer 10 Locking part 11 Contact part 11a Contact surface 11b when rotating right 12b Contact surface 12 when rotating left Guide portion 12a Guide portion 12b when rotating right Guide portion 13 when rotating left 13 Direction of left rotation 14 Direction of right rotation 15 Direction of force acting on the rotation restricting plate

Claims (8)

A main body part, a rotating part rotatable with respect to the main body part, and a rotation regulating unit that is provided on one of the main body part and the rotating part and restricts the rotation of the rotating part,
The protrusion provided on the rotation restricting unit is configured to be in contact with a locking part provided on the other of the main body or the rotating part so that the rotation angle range of the rotating part is restricted. In the rotation restriction unit,
The locking portion includes first and second contact portions and first and second guide portions,
When the rotation restricting unit rotates in a predetermined direction, the projecting portion contacts the first contact portion via the first guide portion and restricts rotation in the predetermined direction, and is opposite to the predetermined direction. When rotating in a direction, the protrusion restricts the second abutting portion via the second guide portion and restricts the rotation in the reverse direction.   The rotation restricting structure according to claim 1, wherein the protrusion is movable in a direction intersecting with a rotation surface in rotation in the predetermined direction via the first guide portion.   2. The rotation according to claim 1, wherein the locking portion has a shape in which both ends are bent in opposite directions so that the protrusion can come into contact with the first and second guide portions. Regulatory structure.   The rotation restricting structure according to claim 3, wherein the contact portion is a saddle-shaped metal whose both ends are bent in opposite directions.   2. The rotation restricting structure according to claim 1, wherein the first and second guide portions guide a movement direction of the protrusion in a direction intersecting a rotation surface of the rotation restricting unit.   The rotation restricting structure according to claim 4, wherein the guide portion is a resin part integrated with the one of the main body portion and the rotating portion.   The rotation restriction structure according to claim 1, wherein the rotation restriction unit is capable of realizing a rotation angle of 180 ° or more in each of the predetermined rotation direction and the opposite direction.   A photographing illumination device comprising the rotation restricting structure according to any one of claims 1 to 7.