JPH0622184A - Electronic camera viewfinder moving mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] The movement of the extension rail of the electronic viewfinder is restricted so that the extension rail does not come to an unsightly position during movement. A leaf spring of an extension rail is provided with a convex portion, and a concave portion for engaging with a rail portion of an electronic viewfinder and a video camera main body is provided. [Effect] When the convex portion of the leaf spring of one holding portion of the extension rail and the concave portion of the rail engage with each other, the other holding portion slides first, so that the movement of the extension rail can be controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video camera (including a VTR-integrated camera), and more particularly to an electronic viewfinder that is easy to use with either the left or right eye.

[0002]

2. Description of the Related Art As described in Japanese Utility Model Laid-Open No. 62-181072, an electronic viewfinder moving mechanism which uses a rail extension device and is easy to use for either left or right eyes has been widely used because it is simple and convenient.

[0003]

However, in the above-mentioned prior art, as shown in FIG. 7, when the electronic viewfinder 1 is pulled out from the storage position 1a to the use position, the extension rail 3 remains in a protruding form, or the use position is increased. There was a complaint that the extension rails sometimes had a protruding shape when they were stowed from the inside, which made them look bad.

The present invention regulates the movement of the extension rail,
It is an object of the present invention to provide an electronic viewfinder moving mechanism that looks good and does not impair the quality of a high-tech device video camera.

[0005]

The above object is to half-lock the shoe of the electronic viewfinder and the leaf spring of the first holding portion of the extension rail in the vicinity of the storage position of the electronic viewfinder, and in the vicinity of the complete withdrawal position. This is achieved by half-locking the shoe of the video camera body and the leaf spring of the second holding portion of the extension rail.

[0006]

[Function] When the electronic viewfinder is pulled out from the complete storage position to the use position, the rail of the electronic viewfinder and the leaf spring of the first holding portion of the extension rail are half-locked near the complete storage position. The second holding portion and the rail of the video camera body slide first, and the extension rail operates as if it were integral with the electronic viewfinder, and the extension rail does not remain protruding.

On the other hand, when the electronic viewfinder is returned from the completely withdrawn position to the housed position, the rail of the video camera body and the leaf spring of the second holding portion of the extension rail are half-locked near the completely withdrawn position. First, the electronic viewfinder is stored in the extension rail, and the extension rail does not stick out during storage.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view of an electronic viewfinder moving mechanism of a video camera, and FIG. 2 is an exploded perspective view of an extension rail 3. A curved leaf spring 4 is inserted into a first holding portion 3a that holds the rail 2 of the electronic viewfinder 1 and is held on the extension rail 3 by bending stoppers 4e and 4f. A leaf spring 5 is similarly inserted into the second holding portion 3b that holds the rail 6 of the video camera body. 3 is a front view of the rail 2 of the electronic viewfinder 1, and FIG. 4 is a cross-sectional view taken along line CC of FIG. FIG. 5 is a front view of the rail 6 of the video camera body, and FIG. 6 is a D- of FIG.
It is a D sectional view. At the time of complete storage, the end stopper 2e of the rail 2 hits the cut-and-raised stopper 4c of the leaf spring 4 and stops. At this time, the convex portion 4a of the leaf spring 4 becomes the concave portion 2a of the rail 2.
Are provided so as to be engaged with. On the other hand, in the second holding portion, the bending stopper 5d of the leaf spring 5 is in contact with the step portion 6d of the rail 6 of the video camera body, but the convex portion 5a is the relief portion 6a.
It is in b and is not engaged with anything.

Therefore, when pulling out the electronic viewfinder 1 from the completely stored state, first, the second holding portion 3d and the rail 6 slide until the cut-and-raised stopper 5c of the leaf spring 5 hits the stepped portion 6c of the rail 6 and stops. Rail 2
(That is, the electronic viewfinder 1) is the first holder 3
It moves together with a (that is, the extension rail 3) and then starts sliding for the first time.

In the fully pulled out state, the convex portion 5a of the leaf spring 5
Is engaged with the concave portion 6a of the rail 6, but the convex portion 4a of the leaf spring 4 is at the position of the escape portion 2b of the rail 2, so when moving in the storing direction, first the first holding portion slides, After that, the second holding portion slides.

The strength of the engaging force between 2a and 4a or 6a and 5a depends on the shape and size of the convex and concave portions and the elastic arms 4b and 5b.
It can be appropriately set according to the dimension of b. Further, the escapes 3c and 3d of the extension rail are provided to prevent the sliding force from becoming excessive when disengaged.

According to the present invention, a new member is not required only by providing convex portions on the leaf springs 4 and 5 and concave portions on the rails 2 and 6, so that the movement of the extension rail can be regulated very easily and at low cost.

[0014]

According to the present invention, the movement of the extension rail can be restricted when the electronic viewfinder starts to move from the time of complete storage and the time of complete withdrawal of the electronic viewfinder, and the extension rail remains protruding during movement, thus degrading the quality of the product. There is nothing to do.

[Brief description of drawings]

FIG. 1 is a partial perspective view of a video camera showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of the extension rail 3 in FIG.

3 is a view showing an arrow A of a rail portion of the electronic viewfinder in FIG.

4 is a cross-sectional view taken along the line AA in FIG.

5 is a diagram showing a rail portion of the video camera main body in FIG.

6 is a sectional view taken along line BB in FIG.

FIG. 7 is a plan view showing an inconvenience of a conventional electronic viewfinder moving mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Electronic view finder, 2 ... Electronic view finder rail, 2a ... Recessed part, 2b ... Relief part, 2c ... Step part, 2d ... Relief part, 2e ... End part, 3 ... Extension rail, 3a ... 1st holding part , 3b ... Second holding portion, 3c, 3d ... Recessed portion, 4, 5 ... Leaf spring, 4a, 5a ... Convex portion, 4b, 5b ... Elastic arm, 4c, 5c ... Cut-and-raised stopper, 4d, 4e, 4f, 5d, 5e, 5f ... Bending stopper, 6 ... Rail of video camera body, 6a ... Recessed portion, 6b ... Relief portion, 6c, 6d ... Step portion.

Claims (1)

[Claims] 1. A first holding portion for slidably holding an electronic viewfinder, and a second holding portion integrally formed with the first holding portion for slidably holding a shoe portion of a video camera body. In the electronic viewfinder moving mechanism in which a leaf spring is used for each holding portion, the leaf spring of the first holding portion and the shoe portion of the electronic viewfinder are provided near the complete storage position of the electronic viewfinder. Are engaged by the elastic force of the leaf spring, and the leaf spring of the second holding portion and the shoe portion of the video camera body are engaged by the elastic force of the leaf spring in the vicinity of the completely drawn-out position of the electronic viewfinder. An electronic viewfinder moving mechanism for video cameras, which is characterized by the fact that it fits together.