JP6547953B2 - Lighting device - Google Patents

Description

  Embodiments of the present invention relate to a lighting device with a bander.

  Some illumination devices for effects used in television studios and theaters use a bander to limit the irradiation range of light, and from the viewpoint of operational efficiency and safety, the direction of light irradiation by remote control There are some that can control the irradiation range of light by a bander.

  The bander includes a bander frame rotatably provided around the light emitting portion of the instrument body, and four blades are rotatably attached to the bander frame. The bander includes a drive unit for the bander frame that rotates the bander frame with respect to the instrument body, and a drive unit for the blades that rotates the blades. A cable is connected from the instrument body to the bander in order to supply power and control signals from the instrument body to the bander.

  Then, by rotating the bander with respect to the instrument body, it is possible to change the angle of the irradiation light whose irradiation range is limited by the four blades. At the time of rotation of the bander, the connecting portion of the cable connected to the bander also moves together, so that the necessary cable extension length changes between the bander and the instrument body side in accordance with the rotation of the bander.

  Since the length of the cable is set corresponding to the turn position of the bander where the draw-out length is maximum, at the turn position of the bander where the draw-out length is minimum, the length of the cable is excessive and the cable It will stick out to the outskirts. In the case where the cable protrudes from the periphery of the bander, the cable may be caught by a peripheral set or another lighting device when moving the tool body to change the irradiation direction. In addition, when the cable protrudes downward, the cable may be reflected on the screen at the time of shooting.

JP, 2013-77490, A

  The problem to be solved by the present invention is to provide a lighting device capable of preventing the cable from protruding to the periphery when the length of the cable remains.

  The lighting device of the embodiment includes an instrument body, a bander, a cable and a pulling mechanism. The instrument body has a light emitting unit that emits light. The bander has a bander frame rotatably provided around the light emitting portion of the device body, a blade provided on the bander frame, and a drive portion for rotating the bander frame with respect to the device body. The cable is connected to the bander from the instrument body side. The pulling mechanism is connected to the cable and pulls the cable toward the instrument body with respect to the rotating bander.

  According to the present invention, it can be expected to prevent the cable from protruding to the periphery when the length of the cable is excessive.

It is a side view of the lighting installation which shows one embodiment. It is the side view which the bander of the illumination apparatus same as the above rotated clockwise. It is a front view of a lighting installation same as the above. The positional relationship between the bander of the lighting device and the cable guide is shown. (A) is a front view of the fixed position of the bander, (b) is a front view of the bander rotated clockwise, and (c) is a counterclockwise bander. It is the front view rotated.

  Hereinafter, one embodiment will be described with reference to FIGS. 1 to 4.

  As shown in FIGS. 1 to 3, the lighting device 10 is used, for example, for rendering in a studio or a stage. The lighting apparatus 10 includes an instrument body 11, a support frame 12 for supporting the instrument body 11, and a band holder 13 attached to the instrument body 11.

  The tool main body 11 has a cylindrical case 20, an optical system such as a light source and a lens is disposed in the case 20, and an irradiation opening from which light is emitted is formed on the front of the case 20. . That is, the light emission part 21 which the light from a light source radiate | emits in the front surface of the instrument main body 11 is formed. The light source may be any of a light emitting element such as an LED or a halogen lamp. Then, in the tool body 11, the lens or the light source is moved in the optical axis direction by a drive unit such as a motor, and the size of the light emitted from the lighting device 10 is controlled.

  A color changer 22 that transmits a color filter to adjust the color of the illumination light is disposed on the front of the instrument body 11.

  The lower surface of the front end and the rear end of the instrument body 11 are provided with legs 23 and 24 when the instrument body 11 is placed on a floor surface or the like.

  The front leg 23 is also used as a cable guide 25. As shown in FIG. 4, the cable guide 25 includes a guide plate 26 and a circular insertion hole 27 formed on the inner side of the guide plate 26. A cylindrical guide cylinder may be provided which protrudes from the guide plate 26, and the insertion hole 27 may be formed inside the guide cylinder.

  Further, the support frame 12 is formed in a substantially U-shaped cross section having an upper support portion 30 and arm portions 31 projecting downward from both sides of the support portion 30.

  On the upper part of the support frame 12, a vertical shaft 32 installed on a baton of a studio via a mounting member is provided in a protruding manner. Then, the tool main body 11 is rotated about the vertical axis 32 by a drive unit such as a motor to control the horizontal irradiation direction in which the lighting device 10 emits light.

  The instrument body 11 is disposed between the arms 31 on both sides, and the instrument body 11 is rotatably supported by the horizontal shafts 33 projecting from the arms 31. Then, the tool main body 11 is rotated about the horizontal axis 33 by a drive unit such as a motor to control the vertical irradiation direction in which the lighting device 10 emits light.

  The support frame 12 receives a power supply and a signal from the baton side by a power supply line and a signal line, and outputs the power supply and the signal to the appliance body 11 and the bander 13 respectively.

  Also, the bander 13 has an attachment portion 40 attached to the front surface of the tool body 11, a bander frame 41 rotatably provided around the light emitting portion 21 of the tool body 11 by the attachment portion 40, and the bander frame 41 respectively. A plurality of blades 42 attached rotatably, a drive unit (a drive for rotating a bander frame) 43 for rotating the bander frame 41 with respect to the instrument main body 11, and a plurality of drive units for rotating each blade 42 A blade rotation drive unit 44 is provided.

  An opening 45 through which light emitted from the light emitting unit 21 of the tool body 11 passes is formed in the bander 13 inside the attachment portion 40 and the bander frame 41.

  The bander frame 41 is rotatably supported by the mounting portion 40. The bander frame 41 has an annular shape, and the outer shape is formed in a substantially square shape. A power supply circuit for supplying a predetermined drive power to each of the drive units 43 and 44 in response to the supply of the external power supply and controlling the respective drive units 43 and 44 by inputting signals from the outside into the bander frame 41. It is arranged.

  The four blades 42 are rotatably attached to the respective sides of the bander frame 41. By pivoting the blades 42 in the closing direction, the illumination light irradiation range is limited.

  The drive portion 43 is attached to the attachment portion 40 or the bander frame 41, and rotates the bander frame 41 with respect to the instrument body 11. Then, the drive unit 43 takes the middle position of the range in which the bander frame 41 can rotate with respect to the tool main body 11 as the fixed position, and rotates counterclockwise (Fig. 3 counter clockwise) and clockwise (Fig. 3) from this fixed position. 3) turn each in the range of a predetermined angle. The predetermined angle is, for example, 90 degrees left and right.

  The driving unit 44 is attached to the bander frame 41, and rotates the blades 42 respectively.

  Further, a cable 50 is connected to the band door 13 from the side of the instrument body 11. The cable 50 is a combination of a power supply line and a signal line, supplies power to the bander 13 and transmits a signal.

  One end of the cable 50 is connected to the back of one arm 31 of the support frame 12 on the side of the tool body 11 and is electrically connected to a terminal device provided on the support frame 12. A portion of the support frame 12 to which one end of the cable 50 is connected is referred to as a cable lead-out portion 51.

  The other end of the cable 50 is connected to a corner located on the lower side when the bander frame 41 is at a fixed position, and the power supply circuit and control circuit disposed in the bander frame 41 are electrically connected. It is connected to the.

  The cable 50 is inserted through the insertion hole 27 of the cable guide 25 in the middle.

  The cable holder 52 holds the cable 50 in the middle of the cable 50 by the band holder 13. The cable holding portion 52 holds an intermediate position of the cable 50 at a position facing the cable guide 25 of the bander frame 41 when the bander frame 41 is at the home position. The cable 50 runs along the circumferential surface of the bander frame 41 without slack between the position where the cable 50 is coupled to the bander frame 41 and the position where it is held by the cable holding portion 52.

  Moreover, the illuminating device 10 is connected with the cable 50, and is provided with the pulling mechanism 55 which pulls the cable 50 to the instrument main body 11 side with respect to the rotating band gear 13. The pulling mechanism 55 has a connecting line 56 connected to the cable 50 and a winding unit 57 for winding the connecting line 56.

  The connection line 56 is, for example, a wire, and its tip is connected to, for example, an intermediate position of the cable 50. The connection portion 56a of the connection line 56 connected to the cable 50 is set at a position where the pulling action by the pulling mechanism 55 works even when the bander frame 41 is at the fixed position.

  The winding portion 57 is disposed at a position facing the cable guide 25 of the instrument body 11 and on the lower surface side of the instrument body 11 in the vicinity of the rear leg 24. The winding portion 57 is biased by a spring in a direction in which the connecting wire 56 is always wound.

  Next, the operation of the lighting device 10 will be described.

  1 and 4 (a) show the bander 13 in a fixed position, and FIGS. 2 and 4 (b) show that the bander 13 is rotated 90 ° clockwise (counterclockwise) from the fixed position. FIG. 4C shows a state in which the band gear 13 has been rotated counterclockwise (clockwise) from the home position by 90 °.

  When the bander 13 is in the fixed position, the distance from the cable guide 25 to the cable holding portion 52 is the shortest, and the distance from the cable guide 25 to the cable holding portion 52 by the bander 13 rotating from the fixed position. Will be longer.

  Therefore, the cable holder 52 pulls the cable 50 from the cable guide 25 toward the bander 13 by the cable holder 52 when the bander 13 pivots from the fixed position. Then, the cable 50 is drawn out most from the cable guide 25 toward the band door 13 at the position where the band door 13 is rotated most from the home position. Therefore, the length of the cable 50 between the cable lead-out portion 51 and the cable holding portion 52 is set to a length corresponding to the time when the cable 50 is most pulled out from the cable guide 25 to the band 13 side.

  Also, the pulling mechanism 55 always pulls the cable 50 to the rear side of the instrument body 11.

  Therefore, as shown in FIG. 1 and FIG. 4A, when the bander 13 is in the fixed position, the length of the cable 50 is left between the cable lead-out portion 51 and the cable holding portion 52, but the pulling mechanism Since the connecting wire 56 is wound at 55 to draw the middle of the cable 50 to the rear side of the instrument body 11, the cable 50 can be prevented from hanging down and protruding to the periphery.

  Furthermore, as shown in FIG. 2, FIG. 4 (b) and FIG. 4 (c), the cable 50 pulled out from the cable guide 25 toward the bander 13 is pulled when the bander 13 is rotated from the home position. Since it is pulled by the mechanism 55, it can be prevented along the periphery of the bander frame 41 and the periphery of the instrument main body 11 from hanging down and protruding to the periphery.

  And according to the illuminating device 10 of this embodiment, when the length of the cable 50 remains by having the pulling-in mechanism 55, it can prevent that the cable 50 protrudes to the periphery.

  Further, by providing the cable guide 25, the drawing position of the cable 50 drawn to the band 13 side at the time of rotation of the band holder 13 becomes constant, and the cable 50 can be made to follow the band 13. A stable pulling operation of the cable 50 by the pulling mechanism 55 can be performed by passing the cable guide 25 when returning from the rotation position to the home position.

  Further, since the pulling mechanism 55 is provided at a position facing the cable guide 25 of the instrument main body 11, the pulling mechanism 55 can perform a stable pulling operation of the cable 50.

  Furthermore, the pulling mechanism 55 can be realized with a simple configuration using, for example, a conston spring having only the winding unit 57 for winding the connecting wire 56. Therefore, by using a structure that allows attachment and detachment of a kanabira or the like to the tip of the wire, the pulling force can be reduced, and the wire can be easily replaced when it is broken.

  Further, the cable holder 52 holds the middle position of the cable 50 at a position facing the cable guide 25 of the band holder 13 when the band holder 13 is at the fixed position, so that the band holder 13 rotates clockwise from the fixed position or The length of the cable 50 drawn out from the cable guide 25 can be made the same even if it rotates at the same angle in any direction counterclockwise, and the cable 50 between the cable lead-out portion 51 and the cable holding portion 52 The setting of the length, the setting of the position of the winding portion 57, and the setting of the position of the connecting portion 56a of the connecting wire 56 connected to the cable 50 can be facilitated.

  The pulling mechanism 55 is not limited to the winding structure, and an elastic body such as a spring or rubber may be used.

  While certain embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

10 Lighting system
11 Instrument body
13 Bandua
21 light emitting part
25 Cable Guide
41 Band holder frame
42 feather
43 Drive
50 cables
52 Cable holder
55 Pulling mechanism
56 connecting lines
57 Winding unit

Claims (4)

An instrument body having a light emitting portion for emitting light;
A bander frame rotatably provided around the light emitting portion of the device body, a blade provided on the bander frame, and a bander having a drive portion for rotating the bander frame with respect to the device body ;
A cable connected to the bander from the device body side;
A pulling mechanism connected to the cable and pulling the cable toward the instrument body with respect to the rotating bander;
A lighting device comprising: The lighting device according to claim 1, further comprising: a cable guide provided on the fixture body and through which the cable passes. The pulling mechanism has a connecting line connected to the cable, and a winding unit for winding the connecting line, and the winding unit is provided at a position facing the cable guide of the instrument body. The lighting device according to claim 2, characterized in that: The bander has a cable holding portion for holding the cable to the bander at a position where the bander located at an intermediate position of the range of rotation with respect to the instrument body faces the cable guide. A lighting device according to claim 2 or 3.

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