JPS5829452Y2 - Camera with protective cover - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a camera having a protective cover that moves between a position covering the front surface of a photographic lens and a position exposing the front surface of the lens.

In a camera in which a photographing lens is moved back and forth in the direction of its optical axis for focusing, a lens protective cover that can cover the front surface of the photographing lens is provided, and the protective cover and the distance adjustment member for focusing are combined. Conventionally known cameras are mechanically interlocked, and when the protective cover is moved to a position that covers the front of the photographic lens, the photographic lens is forcibly moved to the normal focus position in conjunction with this movement. .

The above-mentioned camera is highly portable and suitable for snapshot photography, but in this case, the problem is how to adjust the distance.

In the case of a 1-t camera, the distance adjustment member is usually arranged in the form of a distance ring on the surrounding wall of the lens barrel. This makes operating the distance ring extremely difficult.

On the other hand, a method has already been proposed in which an operating member such as a slide knob is provided on the camera body and the distance is adjusted using this.In this case, the operation like the distance ring method described above is not as difficult, but the opposite is true. The following problems occur.

1. The first slide knob can be operated independently of opening and closing the protective cover, so if the first slide knob is pushed by some external force while the protective cover covers the photographic lens. If the lens is moved, there is a risk that the protective cover may move to the open position of the photographic lens, or that the connecting portion between the distance adjusting member and the protective cover may break.

The present invention was developed based on the above viewpoint, and has a protective cover that is movable between a position that covers the photographic lens and a position that exposes the photographic lens, and when the protective cover is moved to the position that covers the photographic lens. In a camera in which a photographing lens is forcibly moved to a normal focal position, a distance control member is connected to a distance control member and extends from the distance control member toward the bottom side of the camera; By providing an operating member cover wall surface integrally provided with the protective cover so as to cover the distance operating member when the cover is in a position covering the photographic lens, unnecessary external force is not applied to the distance operating member when the cover is not in use. This is how it was done.

Hereinafter, the present invention will be explained based on an illustrated embodiment.

FIG. 1 is a perspective view of a camera 1 having a sliding type lens protection cover 2 to which the present invention is applied.
1B shows the lens protection cover 2 moved to a position where it covers the front surface of the photographic lens 3, and FIG. 1B shows the lens protection cover 2 moved to a position where the lens is exposed.

The protective cover 2 is held slidably in the longitudinal direction with respect to the camera body 1, and has a trapezoidal protrusion having a height corresponding to the protruding portion of the photographic lens 3 on its front center. 2
b is provided.

In the past, the area from the lower part of the octopus protrusion 2b to the bottom side of the camera was shaped like a flat plate, forming a wall surface 2c for the operation member cover.

The photographing lens 3 is 1. - It is held in the IJ coid lens barrel (not shown) and is arranged in the center of the camera 1, and is moved in the optical axis direction by rotation of the distance adjustment member 40 for focusing operation.

The distance adjusting member 4 has an operating arm 4 as a distance operating member.
A is integrally provided in a state extending toward the bottom surface of the camera, and the distance adjusting member can be rotated by this operating arm 4a.

The operating arm 4a is covered by the operating member cover wall surface 2c when the protective cover 2 moves to a position covering the front case of the photographic lens 3.

Further, the distance adjusting member 4 has a cutout portion 4 on its circumference.
b is provided, and the regulation pin 1 provided on the camera body 1
The range of rotation is limited by a, and by rotating the distance adjusting member 40 within this range, the photographic lens 3 is adjusted from the shortest photographing distance to infinity.

A pair of pins 5 and 6 as a transmission part are symmetrically fixed on a distance adjusting member 4 with the photographing lens 3 in between, and the distance adjusting member 4 is set at a distance corresponding to the normal focal position of this camera, for example. When adjusted to the 5 [melon] position, the position is determined so that it lines up on a line parallel to the side edge 2a of the protective cover 2.

Elastic plates γ and 8 as pressing portions are fixed to the inner surface of the protective cover 2 such that their side ends 7a and 8a are on a line parallel to the side edge 2a of the protective cover 2.

Each of the elastic plates 7 and 8 has a notch 7 parallel to the side edge 2a.
b, 8b is provided, and the above side end? a.

8a is given an elastic force in a direction parallel to the moving direction of the protective cover 2.

A finder window 9 and a release button 10 are provided on the top of the camera body 1 so that they are covered at the same time when the protective cover 2 is moved to a position that covers the photographic lens as shown in FIG. 1A. .

Furthermore, a film rewind knob 11 is provided on the top of the camera body 1, which also serves as a back cover lock.
When the photographic lens is moved to the exposed position as shown in FIG. B, it is covered by the protective cover 2.

Note that numeral 12 is a distance scale engraved on the distance adjustment member 4, and numeral 13 is an index engraved on the camera body.

In the above configuration, when photographing, first the protective cover 2 is slid to a position where the photographing lens 3 is exposed as shown in FIG. 1B.

As a result, the finder window 9 and release button 10 are also exposed, and the rewind knob 11 is covered, making it impossible to open the back cover.

In this state, the adjusting member 4 is rotated using the operation 4a to adjust the distance, and then the release button 10 is operated to perform a photographing operation by a known means.

At this time, if the distance adjusting member 4 is adjusted to the nearer side than the normal focal position, for example, 1 [imaginary], the transmitting parts 5 and 6 will be moved closer to each other than the suppressing part T as shown in FIG. It is close to .

On the other hand, the distance adjustment member 4 is located on the far side from the normal focal position, for example 1.
0 (m), the transmission section 5.6 is in a state where the transmission section 6 is closer to the suppression section 8, as shown by 5' and 6' in FIG.

Therefore, when the protective cover 2 is moved to a position covering the photographic lens 3 at the end of photographing, the suppressing parts 7 and 8 will press either one of the transmitting parts 5 and 6.

The distance adjustment member 4 is linked to the closing operation of the twist protection cover 2.
is forcibly moved, and when the movement of the protective cover 2 is completed, the transmission parts 5 and 6 are both in contact with the pressing parts T and 8 as shown in FIG.

At this time, as described above, the photographing lens 3 is placed at the normal focus position, and the operating arm 4a is covered by the operating member cover wall surface 2c.

Therefore, no external force is applied to the operating arm 4a, and if you want to start an instant shooting operation, you can simply open the protective case 2 and the shooting lens will be placed at the normal focus position. , it is possible to take a photograph with the minimum necessary sharpness without particularly adjusting the distance.

In the above embodiment, when the protective case 2 is moved to the closed position 1, which completely covers the photographic lens, the transmission section 5,
Although it is necessary to make the pressure parts 6 come into contact with the pressing parts 7 and 8, this requires great mechanical precision.

In this case, by using elastic pieces having notches 7b and 8b as the pressing parts 7 and 8, the original purpose can be achieved without increasing the mechanical accuracy so much.

Next, FIG. 4 shows another embodiment of the present invention, in which the same parts as in the embodiment shown in FIGS. 1 to 3 are given the same reference numerals.

In the figure, a pin 14 as a transmission part is fixed to the distance adjusting member 4, and a cam plate 15 as a pressing part is fixed to the inner surface of the protective cover 2.

An asymmetrical V-shaped cam surface 15a is provided on the side edge of the cam plate 15.

The cam break 15a is provided so as to face the transmission part 14 and has a button, and when the distance adjustment member 4 rotates in the housing where the transmission part 14 faces the top part 15b, the photographic lens 3 is placed at the normal focal position. Its position is determined so that it will come to the right place.

Even in the above configuration, the distance adjustment member 4 rotates in conjunction with the closing operation of the protective cover 2, and when the protective cover 2 is operated at the closed position 1, which completely covers the photographic lens 3, the photographic lens comes to the normal focal position. Also, the operating arm 4a is covered by the operating member cover wall surface 2c.

In the above embodiment, unlike the embodiments shown in FIGS. 1 to 3, only one transmission section is provided on the distance adjustment member 4, and this transmission section is covered with the protective cover 2. Therefore, it has an excellent appearance.

As described above, the present invention has a protective cover that is movable between a position that covers the photographic lens and a position that exposes the photographic lens. In a camera configured to move a lens to a normal focal position, the distance operating member is connected to a distance adjusting member for moving the photographic lens forward and backward in the optical axis direction, and extends from the distance adjusting member toward the bottom side of the camera. , an operating member cover wall surface integrally provided with the protective cover is provided so that the protective cover covers the distance operating member when the photographing lens is at the 95 position, and the protective cover is moved to a position covering the photographing lens. In this case, since the distance operation member is covered by the operation member cover wall, no excessive external force is applied to the distance operation member when the photographic lens is covered by the protective cover. It is possible to prevent problems such as the protective cover inadvertently opening and breaking the connection between the distance adjusting member and the protective cover.

[Brief explanation of the drawing]

Figures 1A and B are perspective views showing one embodiment of the present invention, Figures 2 and 3 are front views showing the operation of the above embodiment, and Figure 4 is a front view showing another embodiment of the invention. It is a diagram. 1... Camera body, 2... Protective cover, 2c... Wall surface for operating member cover, 2...
...Photographing lens, 4... Distance adjustment member, 4a.
...Distance operation member.

Claims (1)

[Scope of Claim for Utility Model Registration] A photographic lens that has a photographic lens that moves forward and backward in the optical axis direction in response to the operation of a distance adjustment member, and a protective cover that is movable between a position covering the photographic lens and a position that exposes the photographic lens. In the camera, the distance adjusting member is pushed by moving the protective cover to a position covering the lens, and the distance adjusting member is connected to the distance adjusting member. a distance operating member extending from the member toward the bottom of the camera; and an operating member integrally provided with the protective cover so as to cover the distance operating member when the protective cover is in a position covering the photographic lens. A camera having a protective cover, comprising: a wall surface for a cover.