JPS5842450B2 - Photography machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a camera equipped with a zooming function.

The first example of an 811E camera with a conventional power zoom
There are devices configured as shown in Figures a and b.

In the figure, reference numeral 1 denotes a camera body, and a photographic lens 2 is provided at the front of this body 1, and a finder eyepiece 3 is provided at the rear.

The camera body 1 is also provided with a grip 4 that can be held by hand during hand-held photography, and a photographing operation button 5 that is operated by the hand holding the grip 4 is provided near the grip 40.

As shown in FIG. 2, this photographing operation button 5 is provided on the chassis 6 in the main body 1 via a spring I, and when the button 5 is operated, a contact 8 is closed by a part of the button 5. A photographing motor 10 is driven by a DC power supply 9.

On the other hand, an electric zoom operation button 1 is located on the upper side of the camera body 1.
1 is provided.

This operation button 11 is generally a seesaw button, and is used to switch between zooming up and zooming down.

Therefore, to use such a camera, you usually operate the shooting operation button 5 while holding the grip 4 with your right hand, and operate the zoom operation button 11 while holding the top of the main body 1 with your left hand to perform zooming shooting. ing.

However, since such cameras are designed for two-handed operation, if only one hand is available, it is very inconvenient to only take pictures and not be able to use the zoom effect.

Further, even if both hands are available, when a zoom effect is suddenly required during shooting, the user may have to grope for the zoom operation button 11, which is inconvenient in handling.

This invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a camera with extremely excellent operability that allows simultaneous shooting and zoom operations with one hand by adding a zoom operation function to the shooting operation button. With the goal.

An embodiment of the present invention will be described below with reference to the drawings.

That is, FIGS. 3a and 3b show a camera employing this invention.

In the figure, reference numeral 21 denotes a camera body, a photographic lens 22 is provided in front of this body 21, and a finder eyepiece 2 is provided in the rear.
There are 3.

Further, the photographing body 21 is provided with a grip 24 which is held by hand during manual photographing, and a photographing operation button 25 with a zoom operation function which is operated with the hand holding this grip 24 is provided near this grip 240.

In this case, the photographing operation button 25 is constructed as shown in FIGS. 4a and 4b.

That is, the operation button 25 is provided with a lever 26.

This lever 26 has a pair of elongated holes 27, 2 extending in the axial direction.
8 are provided on the same line.

Pins 30 and 31 implanted in the chassis 29 are inserted into these long holes 27 and 2B, allowing the operation button 25 to move linearly in the left and right directions in the figure.

In this case, the lever 26 is always biased to the right in the drawing by the spring 32.

(The illustrated example shows a state in which the operation button 25 is pressed against the spring 32.

) Also, a guide hole 27a extending in the width direction of the lever 26 is provided at one end of the elongated hole 27 on the tip side of the lever 26 among the elongated holes 27 and 2B.

Therefore, when the operation button 27 is pressed in the linear direction as shown in the figure against the spring 32, it is also possible to move the lever 26 up and down along the guide hole 27a centering on the pin 31 in a direction substantially perpendicular to the axial direction of the lever 26. ing.

Further, the lever 26 is provided with a click hole 33 between the elongated holes 27 and 28.

Then, a spring 3 is inserted into this click hole 33 on the chassis 29.
The click ball 35 provided through the lever 4 can be locked, and the lever 26 can be stabilized in the illustrated state (neutral state) against movement in the right angle direction.

A contact point 36 is arranged close to the tip of the lever 26 as a switch for driving the photographing motor.

This contact 36 is closed when the operation button 25 is pressed (in the illustrated state).A DC power supply 37 and a photographing motor 38 are connected in series to this contact 36, and the above-mentioned It is designed to be driven by 38 motors.

Also, leaf springs 39 are provided near both side edges of the lever 26.
Microswitches 41 and 42 are provided via 40.

In this case, the leaf springs 39, 40 apply a return force when the lever 26 is operated in the vertical direction shown in the drawing.

Furthermore, when the operation button 25 is pressed and simultaneously operated to move downward in the figure (downward direction in the figure), the microswitch 41 is pressed by the lever 26 via the leaf spring 39 and moves. Drives from wide-angle to telephoto in the zoom-up direction.

Further, when the operation button 25 is pressed and simultaneously moved upward in the drawing (W direction in the drawing), the microswitch 42 is pressed by the lever 26 via the leaf spring 40 and is operated. to zoom down from telephoto to wide-angle.

In this case, the zoom motor control circuit connects the DC power supply 44 to both ends of the zoom motor 430 with the illustrated polarity when the microswitch 41 operates as shown in FIG. Configured to connect a DC power supply 44 to the opposite polarity shown in the figure,
By operating these microswitches 41 or 42, the zoom motor 43 can be operated in forward or reverse directions to perform zoom up or zoom down.

Note that 45 in the figure is a lock switch for locking the zooming function.

To use such a camera, the user grips the grip 24 with his right hand, holds down the top of the main body 21 with his left hand, and faces the subject.

In this state, use the fingers of your right hand holding the grip 24 to press the operation button 25.
When pressed, the contact 36 closes, the photographing motor 38 is driven, and photographing begins.

After that, while pressing and operating the operation button 25, apply downward force to the lever 26 of the operation button 25 and apply downward force to the lever 26 of the operation button 25, the micro switch 41 will operate and the zoom motor 43 will take pictures from a wide angle. Zoomed up to telephoto.

On the other hand, if you apply upward force to the lever 26 of the operation button 25 with your finger while pressing the operation button 25, the micro switch 42 will operate, and the zoom motor 43 will take a picture. Zooms down from telephoto to wide-angle.

Therefore, with this configuration, you can perform not only shooting operations but also zoom operations using only the shooting operation button, so even if you can only use one hand, you can reliably use the zoom effect, and moreover, you can use the shooting operation button only. Even when a zoom effect is suddenly required, the inconvenience of searching for the zoom operation button by hand as in the conventional method can be eliminated, and excellent operability can be achieved.

In addition, according to this configuration, by simply displacing the operation button in a predetermined direction and opening/closing the drive switch of each motor, it is possible to perform shooting operations and zoom up or zoom down operations. The force can be minimized and the operability can be improved accordingly.

Furthermore, since the second displacement for zooming up or zooming down is possible based on the first displacement, it is possible to prevent careless zooming operations even when no photography is being performed, and to save unnecessary battery consumption. It can also be prevented.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented with appropriate modifications within the scope without changing the gist.

For example, in the embodiment described above, the operation buttons 25 are provided in the vertical direction, but they may be provided in the horizontal direction as shown in FIG.

Further, although the above description has been made regarding an 8-inch camera, the present invention can also be applied to a 16mvt and video camera.

As described above, according to the present invention, by adding a zoom operation function to the photographing operation button, it is possible to provide a photographing device with extremely excellent operability that allows simultaneous photographing and zoom operations with one hand.

[BRIEF DESCRIPTION OF THE DRAWINGS] Figures 1a and b show →1j of a conventional camera; a is a side view or front view; Figure 2 is a schematic configuration diagram showing the operation buttons of the camera; Figures a and b show an embodiment of the camera according to the present invention, a is a side view, b is a front view, Figures a and b are photography operation buttons used in the embodiment, and a is a schematic configuration diagram. , b is a sectional view taken along line B-B in a, FIG. 5 is a circuit diagram showing a control circuit for the zoom motor used in the same embodiment, and FIG. 6 is the other side of the camera according to the present invention. FIG. 1.21... Camera body, 2,22...
- Photographing lens, 3,23...Finder eyepiece, 4,245, -0.・Grip, 5, 25...
・Photography operation button, 6°29...Chassis, 7...
... Spring, 8, 36 ... Contact, 9, 37,
44...DC power supply, 10.3B...Motor for photography, 11, 43...Zoom operation button, 2
6... Lever, 27, 28... Long hole,
30゜31...Pin, 33...Click hole, 34--Spring, 35...Click ball, 39,40...°/°. Leaf spring, 41, 42...Micro switch, 4
5...Lock switch.

Claims (1)

[Claims] 1 A first displacement in a linear direction opens and closes a drive switch for the photographing motor, and based on this first displacement, a second displacement in a direction substantially perpendicular to the first displacement causes the zoom motor to zoom up or zoom. A photographing device characterized by being equipped with a photographing operation button that opens and closes a switch that is driven in the down direction.