JP3398390B2 - Light equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light device applicable to a video camera and the like. 2. Description of the Related Art Among light devices using a battery such as a battery as a power source, there is a video light device which can be used by being attached to a portable video camera. In many cases, such a video light device is mounted on a rear portion of a video camera, and an illumination unit is turned on at the same time as the video camera starts recording. Also, with the miniaturization of video cameras, the size of video light devices has also been reduced. [0003] When the above-mentioned video light device is mounted on a video camera and used, in order to illuminate an object in front of the video camera, the video light device is relatively lighter than the main body of the video light device. By projecting the illuminating section away from above or to the side, it is necessary to prevent light from being blocked by the video camera body. Therefore, in the conventional video light device, since the illumination portion is attached so as to protrude considerably from the main body, the overall size becomes long and handling is troublesome. Some video light devices allow the illumination unit to be detached from the main body when not in use. However, this may not be enough to mount the illumination unit when photographing a subject. Such a problem is not limited to a video light device, but is also a problem common to a battery-powered light device such as a flashlight. [0005] Therefore, the invention has been made to solve the problems as described above, portability is improved and also use wins
Hand and an object thereof is to provide a light device with improved. In order to solve the above-mentioned problems, according to the present invention, there is provided a main body and a slurry slidably mounted on the main body so as to protrude from the main body by a predetermined distance.
Lighting attached to the tip of this slide and this slide
Unit , a power switch for turning on / off the power to the lighting unit, and a slide unit protruding a predetermined distance from the main body.
The power switch is turned on from the off state in conjunction with the action
And a switch operating unit for setting a state . When the present invention is applied to a video light device, the video light device 1 shown in FIG.
Press down. As a result, the projection 55 (FIG. 6A) of the lock lever 31 comes off the locking portion 56 of the main body 2. Next, when the lock lever 31 and the illumination unit raising button 30 are pushed into the main body 2 in this state, the hooking unit 47 of the slide unit 3 is pushed up (FIG. 5B), and the engagement of the slide unit 3 is released. You. As a result, the slide portion 3 slides upward by the urging force of the helix spring 43, and the illumination portion 4 projects significantly from the main body 2. At this time, the protruding piece 58 (FIG. 3) of the slide unit 3 turns on the power switch 59 of the lighting unit 4 from the off state.
Since the can exchange cut state, the illumination unit 4 is turned on. When the automatic / manual changeover switch 60 is on the automatic side, an operation current flowing to the video camera K side is detected by the current detection circuit 61 (FIG. 8) at the same time as the video camera K starts recording. As a result of the switch 62 being turned on, the halogen lamp 71 is turned on. Next, a case where the light device according to the present invention is applied to the above-described video light device will be described in detail with reference to the drawings. For convenience of explanation, the present invention will be described with reference to FIG. FIG. 10 shows a state in which a video light device 1 to which the present invention is applied is mounted on a video camera K. The video camera K is a small portable camera, and a battery pack B is used as a power source. In this example, the video light device 1 is placed between the video camera K and the battery pack B.
And the battery pack B is also used as a power source of the video light device 1. The illuminating section 4 of the video light device 1 protrudes above the main body of the video camera K only during use, as described later, so that illumination light is not blocked by the video camera K. The mounting surface K1 of the video camera K is formed in a groove shape as shown in FIG. 11, and the mounting surface B1 of the battery pack B or the front surface 2 of the video light device 1
1 is inserted. Therefore, the mounting surface B1 of the battery pack B and the front surface 21 of the video light device 1 are formed in the same shape and size. The battery pack B is mounted on the rear surface 33 of the video light device 1 so that it has the same shape and dimensions as the mounting surface K1 of the video camera K. On the mounting surface K1 of the video camera K and the back surface 33 of the video light device 1, there are provided electrode portions 36, 36 projecting in a pin shape.
(FIG. 12). Further, as described later, there are provided engaging portions 34 and 35 for engaging the other side, a reference line 37 serving as a reference at the time of mounting, and a locking projection 70. On the mounting surface B1 side of the battery pack B and on the front side 21 of the video light device 1, an electrode device 25 is incorporated as shown in FIG.
Is exposed only when connected to the other party as described later. Furthermore, engaging grooves 22 and 23 are provided at the upper and lower ends of these surfaces B1 and 21, and a lock groove 24 is provided at the lower side. Next, a procedure for mounting each device will be described. When attaching the video light device 1 to the video camera K, first, the side edge 69 of the video light device 1 is aligned with the reference line 37 of the video camera K as shown in FIG. Press it against the mounting surface K1. Next, the video light device 1 is laterally moved in the predetermined direction, in this example, rightward (indicated by a solid arrow in the drawing) in this state. Thus, the upper and lower locking grooves 22, 23 (FIG. 12) of the video light device 1 and the upper and lower engaging portions 34, 35 of the video camera K are engaged with each other.
The locking projections 70 of the video light device 1
4 is inserted. This ensures that the video light device 1 is mounted. At this time, as will be described later, the electrode cover 66 (FIG. 12) of the video light device 1 is opened by the protruding electrode portions 36, 36 of the video camera K, and the respective electrode portions 36, 36, 26, 26 are electrically connected. After the video light device 1 is mounted on the video camera K in this manner, the battery pack B is mounted on the rear surface 33 of the video light device 1. The mounting surface B1 of the battery pack B is formed similarly to the front surface 21 of the video light device 1 as described above, and the mounting procedure is the same as the mounting procedure of the video light device 1. Next, the video light device 1 will be described in detail. FIG. 1 shows the appearance of a video light device 1 according to the present invention. The video light device 1 is used by being attached to a portable video camera K, but can also be used as a single lighting device. In FIG. 1, a video light device 1
The main body 2 includes a main body 2 having a built-in circuit board and the like, a slide section 3 slidably mounted on the main body 2, and an illumination section 4 mounted on a tip of the slide section 3. The main body 2 is formed in a flat box shape.
Lock grooves 22 and 23 for engaging with the mounting surface K1 of the video camera K are provided at the upper and lower ends of the first side. Further, a lock groove 24 for inserting the lock projection 70 of the video camera K is provided at a lower side of the front surface 21. Further, the front surface 21 is provided with openings 27, 27 for exposing the electrode portions 26, 26 of the electrode device 25 built in the main body 2 as described later. On one side surface 28 of the main body 2, an automatic / manual changeover switch 60 built in the main body 2 as described later is provided.
The lighting unit raising button 30, the lock lever 31 of the lighting unit raising button 30, and the operation unit of the engagement release lever 32 for releasing the engagement of the battery pack B (FIG. 10) are arranged. The back surface 33 of the main body 2 is a mounting surface for the battery pack B, and is formed in a groove shape so that the battery pack B can be fitted therein. On the upper and lower sides of the back surface 33, as shown in FIG. 2, engaging portions 34 and 35 for engaging the locking grooves 22 and 23 of the battery pack B, and the battery pack B and the main body 2 are electrically connected. Electrode portions 36, 36 (positive side and negative side) are provided. The electrode portions 36, 36 protrude in a pin shape as shown in FIG. B, and are constantly urged outward and attached to be able to move forward and backward. The rear surface 33 is provided with a locking projection 70 that is movable forward and backward, and is inserted into the locking groove 24 of the battery pack B. Further, a reference line 37 is written on the back surface 33. As described above, the side end of the battery pack B is aligned with the reference line 37, and the battery pack B is pressed horizontally, and the battery pack B is moved laterally as it is. B is attached. In FIG. 1, the illumination unit 4 includes a frame 41 fixed to the slide unit 3, a protective cover 42 fixed to the frame 41, and a halogen lamp 71 mounted inside the frame 41. Consists of The protective cover 42 is attached so that it can be easily removed by slightly rotating it in one direction. The illuminating unit 4 protrudes upward by operating the illuminating unit up button 30 as described later (two-dot chain line in the figure). Thus, the illumination light is not blocked by the video camera K. Next, the internal structure of the video light device 1 will be described. FIG. 3 is a sectional view of the video light device 1.
The slide portion 3 is formed in a plate shape, and is slidably fitted in a guide groove 38 provided in an upper portion of the main body 2. Body 2
One end of a plate-shaped helical spring 43 is engaged with the projection 39 at the upper part of the helical spring. The other end of the helical spring 43 is
Is wound around a take-up portion 44 rotatably attached to the lower side of the reel. Thus, the slide portion 3 is constantly urged upward. Therefore, when the slide portion 3 is at the highest position, that is, when the stopper 45 of the slide portion 3 comes into contact with the locking piece 46 of the main body 2, the urging force of the helical spring 43 is minimized. Thereby, the helical spring 43
This prevents the abnormally strong force from being applied to the stopper 45 and the locking piece 46 by the urging force. At the lower side of the slide portion 3, a hook portion 47 for hooking to the main body 2 is provided in a protruding manner. This hook part 4
7 is configured to have elasticity, and a latching piece 48 is protruded from the lower surface side as shown in FIG.
On the projection 49. The outer surface of the retaining piece 48 is
It is formed diagonally to make it easier to get on the vehicle. The engagement between the main body 2 and the slide portion 3 is released by operating the above-mentioned illumination unit up button 30 (FIG. 3). The illuminating section up button 30 is attached to the main body 2 so as to be able to advance and retreat by appropriate means (not shown).
Are always urged outward by a compression spring 51 hooked on the hooking portion 50. The distal end portion 52 of the lighting section up button 30 is formed to be inclined downward as shown in FIG. 5, and as shown in FIG. The height is such that you can release your clothes. The operation section 53 of the lighting section up button 30 includes
As shown in FIG. 3, one end of a U-shaped lock lever 31 is fixed. The lock lever 31 is formed of an elastic material and is urged in an opening direction. As shown in FIG. 6, a locking projection 55 is provided near the operating portion 54 of the lock lever 31.
The operating portions 53 and 54 are prevented from being inadvertently pushed by engaging the engaging portions 56 of the main body 2 with the engaging portions 56. As shown in FIG. 6B, when operating the lighting section up button 30, first, the operation section 54 of the lock lever 31 is operated.
Press down. Thus, the engagement between the lock lever 31 and the main body 2 is released. Next, in this state, by pushing the lock lever 31 and the illumination unit up button 30 into the interior, the tip 52 of the illumination unit up button 30 is attached to the hook 47 of the slide unit 3 as shown in FIG. Push up. Thereby, the slide part 3 slides upward as shown in FIG. Protrusions 57 and 58 are provided on the side of the slide unit 3 at appropriate intervals, and switch the power switch 59 of the illumination unit 4 as the slide unit 3 slides. That is, the lower protruding piece 58 switches the power switch 59 to the ON state when the slide section 3 moves up, and the upper protruding piece 57 switches the power switch 59 to the OFF side when the slide section 3 moves down. Then, as shown in FIG.
When the automatic / manual changeover switch 60 is set to automatic with the switch 9 turned on, the current detection circuit 61 detects the operating current flowing through the video camera K at the same time as the video camera K starts recording, and thereby the internal switch 62 Is turned on, and the halogen lamp 71 of the illumination unit 4 is turned on. When the automatic / manual changeover switch 60 is on the manual side, when the lighting unit 4 is raised regardless of the operation state of the video camera K,
That is, when the power switch 59 is turned on, the halogen lamp 71 is turned on at the same time. In FIG. 3, a substrate 63 on which the above-described electric circuit is mounted is mounted on the lower side of the main body 2. The above-described electrode device 25 is mounted on the upper surface side of the substrate 63. In the electrode device 25, electrode portions 26, 26 (positive side and negative side) are mounted on the upper surface of a base 64 as shown in FIG. The electrode portions 26, 26 are shielded by an electrode cover 66 which is constantly urged to the closed side by a tension spring 65. When the video light device 1 is mounted on the video camera K, the protruding electrode portions 36, 36 of the video camera K are laterally moved while being hooked on the openings 67, 67 of the electrode cover 66. The electrode cover 66 is opened as shown in FIG. Thus, the electrode portion 3 of the video camera K
6, 36 and the electrode portions 26, 26 of the video light device 1 can be connected. The base 64 is provided with a mounting base 68. If this electrode device 25 is used, the electrode portions 26, 26 are not inadvertently short-circuited.
The internal circuit can be prevented from being damaged. Although the above embodiment has been described with reference to the case where the present invention is applied to a video light device, the present invention can be applied to a portable lighting device such as a flashlight. As described above, according to the present invention, when used ,
The protruding part can be used by projecting it from the main body by a predetermined distance.
The power supply interlocks with the extension of the slide
When the switch is turned on from the off state, the lighting section lights up
Is what you do. Therefore, according to the present invention, when not in use ,
You can leave the ride part out of the body
And portability is improved. In addition, the user can use
You only need to perform the operation to make the riding part protrude.
There is no need to perform operations to turn it on, making it easy to use.
Up.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external view of a video light device according to the present invention. FIG. 2 is a detailed view of a rear surface of the main body. FIG. 3 is an internal structural diagram of the video light device. FIG. 4 is a cross-sectional view showing a hooked state of a slide unit. FIG. 5 is a cross-sectional view for explaining the operation of a lighting unit up button. FIG. 6 is a cross-sectional view illustrating the operation of the lock lever. FIG. 7 is a cross-sectional view illustrating a protruding state of a lighting unit. FIG. 8 is a circuit diagram of a video light device. FIG. 9 is a perspective view illustrating a configuration of an electrode device. FIG. 10 is an external view showing a mounted state of the video light device. FIG. 11 is an explanatory diagram illustrating a mounting procedure of each device. FIG. 12 is a perspective view of a battery pack. [Description of Signs] 1 Video light device 2 Main body 3 Slide section 4 Illumination section 30 Illumination section up button 31 Lock lever 43 Helix spring 47 Hook section 48 Hook piece 49 Projection 52 Tip 57 Projection piece 59 Power switch 71 Halogen Lamp B Battery pack K Video camera

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masahiro Yamada 1-14-6 Nishigotanda, Shinagawa-ku, Tokyo Asahi Research Co., Ltd. (56) References JP-A-3-236688 (JP, A) (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 5/222-5/257

Claims (1)

(57) and [Claims 1 main body, slidable only can project body a predetermined distance from the body
A slide portion attached to an illumination portion attached to the distal end of the slide portion, a power switch for switching on and off of power to the lighting unit, movement of the slide portion protrudes by a predetermined distance from the body
The power switch is turned on from the off state in conjunction with the operation
And a switch operating unit .