JPS6020109Y2 - camera eye cup device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an eyecup device that is attached to the eyepiece of a camera.

Conventionally, the eyecup device was attached to the eyepiece by fitting the inner periphery of the small opening of a rubber eyecup device formed into a trumpet shape with two large and small openings into a groove along the outer periphery of the eyepiece of the camera body. Ta.

However, if this eyecup device is adopted for a camera where the eyepiece and back cover are close together, the back cover side part of the eyecup device will be pushed up to prevent the back cover from opening or closing. If the eyecup device is attempted to be sufficiently retracted, the eyecup device will come off the eyepiece due to the upward movement.

Therefore, there was a drawback that opening and closing the back cover was inconvenient.

An object of the present invention is to eliminate the above-mentioned drawbacks and to provide an eyecup device whose back cover can be easily opened and closed.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a sectional view of the eyecup device, FIG. 2 is a view taken along the line A-A,
FIG. 3 is a sectional view illustrating the installation operation of the eyecup device;
FIG. 4 is a sectional view illustrating the state of the eyecup device when the back cover of the camera is opened and closed.

In these figures, reference numeral 1 denotes a trumpet-shaped eyepiece member made of an elastic material such as rubber and having two large and small openings.
As clearly shown in the figure, a connecting member 2 formed of a rigid body and having an arc shape with a part of the ring zone cut out is provided.

This connecting member is made of metal, for example, and is fixed to the eye member 1 by baking or adhesion.

At the rear of this hardware 2, there is also an arc-shaped eye member protrusion 1b.
is formed to wrap around the coupling member 2 and to make the fixation of the member 2 strong by baking or adhesion.

Further, the arcuate portion IC other than the portion 1b is designed to have a thin wall thickness so that it can be easily bent.

These elements 1, 2 constitute an eyecup device.

3 is an eyepiece on the camera body side, 4 is a back cover of the camera provided under the eyepiece 3, and 5 is a diopter correction lens, etc., and a male screw 5a screws into the female screw 3a of the eyepiece 3. It is an auxiliary member having.

Next, we will describe the operation of attaching the eyecup to the camera body.

As shown in FIG. 3, an arc-shaped metal fitting 2 fixed to an eyepiece member is placed on the eyepiece part 3 of the camera, and an auxiliary member 5 is screwed onto the eyepiece screw part 3a from above.

Therefore, the arc-shaped hardware 2 is held and fixed by the eyepiece 3 and the auxiliary member 5.

This is the state shown in FIG.

Next, we will discuss the opening and closing operations of the camera back cover.

The eyecup devices 1 and 2 are installed as shown in FIG.

The cutout portion of the arc-shaped hardware 2 faces the back cover 4 side.

When the back cover 4 is opened in this state, the back cover 4 is attached to the eyepiece member 1.
It will come into contact with.

However, since the hardware 2 is arc-shaped, the eye member 1 formed of an elastic member can be bent from the two ends of the arc-shaped hardware 2, and can be retracted to the position indicated by the two-dot chain line in FIG.

In this way, the eye member 1 is folded to open and close the back M4.

Therefore, the back cover can be opened and closed without removing the eyecup devices 1 and 2 from the eyepiece 3 each time the back cover is opened and closed.

As detailed above, according to the present invention, the eyecup device
It consists of an eyepiece made of a trumpet-shaped elastic member and a connecting member made of an arc-shaped body fixed in a small opening of the eyepiece, and the connecting member is connected to the eyepiece of the camera body and the auxiliary member. Since it is clamped, there is no need to worry about the eyecup device coming off from the eyepiece, and moreover, the elastic eyecup member is bent at the two ends of the connecting member formed of a rigid body, and is sufficiently retracted out of the opening/closing track of the back cover. be able to.

Therefore, it is possible to very easily open and close the back cover without having to attach or detach the eyecup device from the body each time the back cover is opened or closed.

Moreover, cameras in which an auxiliary member such as a diopter correction lens is screwed into the eyepiece as shown in the embodiment are cameras that have been widely used in the world than before, and the eyecup device of the present invention is suitable for the eyepiece of such a camera. Since it can be held between the part and the auxiliary member, it can be attached to such conventional cameras without any modification, which is very useful.

Furthermore, the structure is very simple, and the manufacturing cost is low, making it difficult to break.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention, in which FIG. 1 is a sectional view of the eyecup device, FIG. 2 is a view taken along the line A-A, and FIG.
The figure is a cross-sectional view explaining the installation operation of the eye cup device.
The figure is a sectional view illustrating the state of the eyecup device when the back cover of the camera is opened and closed. Explanation of symbols of main parts, 1...Target parts, 2.
...Connecting member, 3... Camera eyepiece,
4...Camera back cover, 5...Auxiliary parts

Claims (1)

[Scope of utility model registration request] An eyecup device removably attached to a camera, comprising an eyepiece, an auxiliary member screwed into the eyepiece, and a back cover disposed near the eyepiece, the eyecup having a large opening at one end. It is formed of a trumpet-shaped elastic eye member having a small opening at the end, and an arc-shaped rigid body having a shape along the inner periphery of the medium opening and having a notch on the back cover side, a connecting member that is fixed to the eyepiece member and that is held between the auxiliary member and the eyepiece when the auxiliary member is screwed into the eyepiece; An eyecup device for a camera, characterized in that the eyepiece member is bent at the notch, and a portion of the eyepiece member that is within the opening/closing track of the camera back can be retracted out of the opening/closing track. .