JP2014023075A - View finder supporting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a view finder supporting device in which forward and backward sliding/tilting/panning operations can be performed by solving the problem that, in a conventional view finder supporting device for a large-sized camera, a view finder can be slid/tilted forwards and backwards only but cannot be panned.SOLUTION: The view finder supporting device comprises: an inner rail which is mounted to a view finder body in a rotatable manner; an outer rail in which a long hole for a lock shaft threaded and engaged with the inner rail is provided and which is engaged with the inner rail; and a rotatable joint provided on the outer rail.

Description

  The present invention relates to a viewfinder support device for a camera.

  The conventional viewfinder support device is portability important for small cameras, and is mainly a storage-type dedicated device that is installed on the back of the camera and supports and protects the LCD monitor with a T-shaped biaxial rotation method. It was.

JP 2011-124902 A

  On the other hand, general-purpose viewfinders that are independent of the camera body have been made for large cameras, but this type of viewfinder support device requires less portability than small cameras, so the front / rear slide / tilt of the viewfinder There was a problem that only panning was possible.

  An object of the present invention is to solve the above-described problems and to provide a viewfinder support device that can perform forward / backward slide / tilt / pan operations.

  In order to solve the above problem, the viewfinder support device of the present invention is provided with an inner rail rotatably attached to the viewfinder body, and a long hole for a lock shaft that is screw-engaged with the inner rail. An outer rail that engages with the inner rail and a rotatable joint portion provided on the outer rail are included.

  According to the present invention, each of the forward / backward slide / tilt / pan operations of the viewfinder can be performed with a relatively simple structure, so that it is possible to provide a viewfinder support device with improved user convenience.

  According to the present invention, since the viewfinder can be moved back and forth, tilted, and panned with a relatively simple structure, there is an effect that the burden on the viewfinder user of a large camera is reduced.

1 is an external view of a viewfinder support device according to the present invention. It is an inner rail part external view of the viewfinder support apparatus by this invention. It is a joint part external view of the viewfinder support apparatus by this invention. It is sectional drawing of the lock shaft periphery by this invention.

  The present invention will be described below with reference to the drawings.

  FIG. 1 is an external view of a viewfinder support device according to the present invention. A video signal from the camera body is input into the viewfinder through a connector (not shown). The three-dimensional coordinate axes XYZ are set as shown in the figure. Although the viewfinder main body 11, the eyepiece unit 12, and the control unit 13 are shown, these units can slide back and forth in the A direction, that is, the Y-axis direction along the long hole of the outer rail 17.

  FIG. 2 shows a state in which the outer rail 17 or more is removed in the present invention, and is an external view of the inner rail portion of the viewfinder support device. An inner rail rotating shaft 15 and an inner rail 16 are shown. The unit of the viewfinder main body 11, the eyepiece lens unit 12, and the control unit 13 in FIG. 1 can be tilted around the inner rail rotation axis 15 with friction by a wave washer or the like in the B direction, that is, around the X axis in FIG.

  FIG. 3 is an external view of the joint portion of the viewfinder support device according to the present invention. A lock shaft 19 screwed to the inner rail 16 is fixed to the lock lever 20 by serration coupling or the like. A joint A21 and a joint B23 fixed to the outer rail 17 are rotatably connected with friction by a connecting shaft 22 by a spring washer or the like. An attachment rail 24 is attached to the tip of the joint B23. The unit of the viewfinder main body 11, the eyepiece lens unit 12, and the control unit 13 in FIG. 1 can pan around the connecting shaft 22 in the C direction, that is, the Z axis in FIG. 1.

  4 shows a cross-sectional view of the periphery of the lock shaft 19. After the viewfinder body 11, the eyepiece lens portion 12, and the control portion 13 are slid back and forth in the direction A shown in FIG. Is rotated, and the outer rail 17 is locked to the inner rail 16 via the elastic body 18. The lock shaft 19 also serves as a slide stroke length limiting pin for the outer rail 17. The inner rail mounting seat 14 is fixed to the inner rail rotating shaft 15 by caulking or the like.

  As described above, in the viewfinder device according to the present invention, the forward / backward slide / tilt / pan operations can be performed independently, and the attached viewfinder can hold the viewfinder at an arbitrary position / angle. User convenience is greatly improved by shooting with cranes and cranes.

DESCRIPTION OF SYMBOLS 11 Viewfinder main body 12 Eyepiece part 13 Control part 14 Inner rail mounting seat 15 Inner rail rotating shaft 16 Inner rail 17 Outer rail 18 Elastic body 19 Lock shaft 20 Lock lever 21 Joint A
22 Connecting shaft 23 Joint B
24 Mounting rail

Claims (3)

In the viewfinder device made separately from the camera,
An inner rail rotatably attached to the viewfinder body,
A lock shaft for a slide lock screw-engaged with the inner rail;
An outer rail provided with an elongated hole for the lock shaft, and capable of sliding by engaging with the inner rail;
A rotatable joint provided on the outer rail;
A viewfinder support device including a mounting rail coupled to the joint portion.   The viewfinder device according to claim 1, wherein the lock shaft for the slide lock also serves as a slide stroke length limiting pin for the outer rail.   The viewfinder device according to claim 1, wherein a lock lever coupled to the slide shaft for locking the slide and the mounting rail are arranged so as not to interfere with each other.