JPH0449809Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for attaching a yoke assembly to a camera body in a television camera.

[Conventional technology]

When attaching the yoke assembly containing the image pickup tube to the camera body, various improvements have been made to its structure in order to make the installation process easier and to make adjustments after installation easier. .

An example of a conventional mounting device of this type is the
There is an idea disclosed in Publication No. 61725. This idea involves fixing a fixing screw ring to the front panel of a television camera, which has screws on its inner and outer peripheries and a truncated conical fixing piece into which a yoke assembly is inserted. A tightening ring having a wedge-shaped cylindrical body with threads on the inner and outer peripheries and a tip end of which tightens the fixing piece is screwed into the inner screw, and the fixing piece is tightened to fix the yoke assembly. It is something.

[Problem that the invention attempts to solve]

The above-mentioned yoke assembly mounting device has an extremely complex structure and is troublesome to adjust after installation, and has a large number of parts, making it difficult to manufacture and assemble parts.
There are problems in that adjustment is troublesome and costs increase significantly.

This invention was devised to solve the above problems.The purpose of this invention is to provide a yoke assembly mounting device for a television camera that has a simple structure, a small number of parts, easy assembly and adjustment, and a significant cost reduction. The aim is to realize this.

[Means for solving problems]

The present invention was made to achieve the above object, and is provided on the front panel of the camera body.
A nearly elliptical mounting tube with a portion cut out and a stepped portion at the bottom and a protrusion formed close to the stepped portion, into which the tip of the yoke assembly is inserted, and the base of the cutout portion of the mounting tube. A television camera comprising: a fixing base protruding outward from the yoke assembly; and a substantially L-shaped fixing plate having a distal end formed in an arc shape aligned with the groove of the yoke assembly and fixed to the fixing base. A yoke assembly mounting device is provided.

[Effect]

Insert the tip of the yoke assembly into the mounting cylinder and fit the groove into the protrusion, then insert the mounting plate along the mounting base and engage the tip with the groove,
Fix the mounting plate to the mounting base using screws.

〔Example〕

FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a cross-sectional view showing how the yoke assembly is attached, and FIG. 3 is a front view of the front panel. In the figure,
1 is the front panel of the camera body, 2 is the front panel 1
It is a hollow cylindrical mounting tube that protrudes from the bottom, and a stepped portion 3 is formed at the bottom. As shown in FIG. 3, this mounting tube 2 has a lower part formed with an inner diameter that approximately matches the outer diameter of a front flange 11 of a yoke assembly 10, which will be described later, and an upper part formed at a point slightly above the center 0. 0
₁ (approximately matching the outer diameter of the front flange 11 of the yoke assembly 10), and has an elliptical shape as a whole. The stepped portion 3 is centered on the center portion 0 and is formed on an inner periphery smaller than the outer diameter of the front flange portion 11 of the yoke assembly 10. 4 is an opening cut out in the peripheral wall of the mounting tube 2 in a range of approximately 45° from the perpendicular line passing through the center 0, and 5 is provided at a position on the inner peripheral surface of the mounting tube 2 at a position substantially opposite to the opening 4. It is an arc-shaped protrusion.

Reference numeral 6 denotes a fixing base protruding outward from the base of the opening 4, the end surface of which is formed at approximately 45° with respect to the perpendicular passing through the center 0, and a screw hole 8 is provided. Reference numerals 7 and 7a are substantially L-shaped guides provided facing the side surface of the fixing base 6 (see FIG. 5a). 10 is a cylindrical yoke assembly with a built-in image sensor, and a groove 1 is provided in the front flange 11 provided at the front.
2 is provided. 13 is a band for fixing the built-in image sensor, and 14 is a tightening screw thereof.

Reference numeral 15 designates a fixing plate for the yoke assembly 10, and its width is formed to a size that allows it to fit between the guides provided on the fixing base 6. The tip 16 is aligned with the groove 12 of the yoke assembly 10 and has a circular shape. It is formed in an arc shape, and the rear end is bent at a nearly right angle to form a bent part 17.
is provided. 18 is a hole provided in the bent portion.

The opening 4 is provided in the mounting tube 2 so that the tightening screw 14 of the band 13 that fixes the image sensor built into the yoke assembly 10 may interfere with the insertion of the yoke assembly 10 into the mounting tube 2. This is because the tightening screw 14 can be adjusted from the outside after assembly. Further, the protrusion 5 provided on the inner circumferential surface of the mounting tube 2 is connected to the yoke assembly 1.
0 is inserted into the mounting tube 2 and the end of the front flange 11 comes into contact with the stepped portion 3, and is provided at a position aligned with the groove 12 of the yoke assembly 10, and the side surface of the fixed base 6 is , at this time, it is provided at a position that is substantially flush with the side wall on the tip side of the groove 12.

Next, the assembly order of the present invention will be explained from the above-mentioned parts.

(1) As shown in FIG. 4a, insert the yoke assembly 10 into the mounting tube 2 with its upper surface in contact with the upper inner peripheral surface of the mounting tube 2. Mounting tube 2
Since the gap 〓g is formed between the yoke assembly 10 and the lower inner circumferential surface of the yoke assembly 10, the yoke assembly 10 can be inserted without interfering with the protrusion 5.

(2) Lower the yoke assembly 10 at the position where the tip of the front flange 11 abuts the stepped portion 3 and abuts the lower inner circumferential surface of the mounting tube 2. As a result, Fig. 4b
Groove 12 of yoke assembly 10 as shown in
fits into the protrusion 5.

(3) Insert the fixing plate 15 along the guides 7, 7a of the fixing base 6 (see Fig. 5a), and insert its tip 16 into the yoke assembly 1 as shown in Fig. 4c.
0 into the groove 12. At this time, the bent portion 17
comes into contact with the end surface of the fixed base 6.

In this state, the screw 20 is screwed into the screw hole 8 of the fixing base 6 through the hole provided in the bent part 17 and fixed.
As a result, the yoke assembly 10 is securely fixed within the mounting tube 2 by the protrusion 5 and the fixing plate 15, as shown in FIG.

(4) When adjusting the position of the yoke assembly 10, loosen the screw 20 and adjust the position of the yoke assembly 1.
0 and tighten the screw 20 when the adjustment is completed.

FIG. 6 shows another embodiment of the fixing base and the fixing plate, in which the guides 9 and 9a are provided with no grooves and are simply I-shaped protrusions, and the guides 9 and 9a are arranged close to the end of the fixing base 6. A groove 6a is provided parallel to the yoke assembly 10 with one side inclined, and the bent portion 17 of the fixed plate 15 is formed short.
After inserting the bent part 17 into the groove 12 of the fixing plate 15 and fitting the bent part 17 into the groove 6a, tighten the screw 20 to the side surface of the fixing plate 6. As it moves forward, the tip 16 of the fixing plate 15 fits into the groove 12 of the yoke assembly 10 and is firmly fixed.

In the above explanation, a case is shown in which the mounting tube 2 is provided with the opening 4 that opens at the end, but the position or structure of the band 13 and the tightening screw 14 of the yoke assembly 10 is different, and If there is no risk of interference even when inserted, a cutout on the slit may be provided at the position where the fixing plate 15 of the mounting tube 2 is inserted.

[Effect of idea]

As is clear from the above description, the present invention has a simple structure, a small number of parts, easy assembly and adjustment, and can significantly reduce costs, so it is very effective in practical use.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of an embodiment of the present invention, Fig. 2 is a partial sectional view showing the assembled state of the invention, Fig. 3 is a front view of the embodiment of the front panel, and Figs. 4 a to c are yoke. Schematic diagram showing the installation order of the assembly, No. 5
6A and 6B show examples of the fixing plate and the guide, respectively, in which a is a perspective view and b is a cross-sectional view. 1...Front panel, 2...Mounting tube, 3...Step, 4...Opening, 5...Protrusion, 6...Fixing base,
7, 7a, 9, 9a... Guide, 10... Yoke assembly, 11... Front tsuba, 12... Groove, 15
...Fixing plate, 16...Tip part, 17...Bending part.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) It is provided on the front panel of the camera body, a part of which is cut out, a stepped portion is formed at the bottom, and a protrusion is formed adjacent to this stepped portion, and the tip of the yoke assembly is a substantially elliptical mounting tube into which the yoke assembly is inserted; a fixing base protruding outward from the base of the cutout of the mounting tube; A yoke assembly mounting device for a television camera comprising a substantially L-shaped fixing plate fixed to the fixing base. (2) The yoke assembly mounting device for a television camera according to claim 1, wherein a guide for a fixing plate is provided on the side wall of the fixing base. (3) The yoke assembly mounting device for a television camera according to claim 1, wherein a groove having an outwardly sloping surface is provided in the side wall of the fixing base in the vicinity of the distal end thereof.