JPH09161686A - Klystron tube sliding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily, smoothly slide and eliminate danger of falling down even when completely drawn out. SOLUTION: A roller 13 on the klystron tube side rolls over the upper surface of an upper plate part 211 of a bracket 21 on a bay side, a roller 23 on the bay side rolls over the lower surface of a lower plate part 112 of a bracket 11 on the klystron tube side, and the klystron tube is smoothly slid. When the klystron tube is drawn out on the front side, the upper side edge of a supporting fixture 22 is fit to a stopper 14 before the roller 13 runs on the roller 23, and floating up of the klystron tube side is prevented, and danger of falling down of the klystron tube caused by carrying of the roller 13 beyond the roller 23 is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a klystron tube slide device for sliding a klystron tube used in, for example, an HPA (high power amplifier).

[0002]

2. Description of the Related Art Conventionally, in HPA, the klystron tube is a consumable item and needs to be replaced periodically. At this time, since the klystron tube is housed inside the frame, it must be pulled out before.

Conventionally, as shown in FIG. 2, a frame 1
The reverse L-shaped bracket 2 is attached to the klystron tube mounting surface of the above, and the L-shaped bracket 4 is attached to the bottom of the klystron tube 3 at a position facing the frame side bracket 2 and the klystron tube is placed on the frame side bracket 2. The side bracket 4 is adapted to slide. Then, the klystron tube side bracket 4 is finally separated from the frame side bracket 2, whereby the klystron tube 3
Can be removed from the bay.

However, in the conventional klystron tube slide device as described above, a considerable force is required to slide the surfaces, and since there is no stopper mechanism, there is a risk of dropping.

As a prior art example 1, Japanese Patent Laid-Open No. 60-1
Japanese Patent Laid-Open No. 88107 discloses "an extraction member retaining mechanism". In this device, a pendulum-like stopper member is oscillatably supported at the terminal end of the movement in the pull-out direction, and the extraction is securely locked in the maximum pull-out position without applying an impact force, and a double-sided pull-out type is used. On the other hand, the common member prevents the falling.

As a prior art example 2, as a practical example, Shokai 58-346.
No. 40 (Japanese Patent Application No. 56-129452, Micro Film) discloses a "slide rail stopper mechanism". This device is composed of a fixed rail that is mounted in the cabinet and a movable rail that engages with the movable rail to allow the drawer to be freely inserted and removed, and one of both rails has a locking portion that projects inward. The other is provided with stoppers that come into contact with the locking portion in a state where the drawer is pulled out, and one or both of the locking portion and the stopper is covered with an elastic body.

As prior art example 3, as a practical example 3-1977
The "drawing device" is disclosed in Japanese Patent No. This device has two upper and lower guide grooves for engaging the roller of the main body and the roller of the case in mutually different grooves from opposite sides, and is guided slidably between the main body and the case. By providing the rail, the number of parts is small, the structure is simple, and the drawer body having a weight equal to or more than that of the conventional device can be put in and taken out.

[0008]

As described above, in the conventional klystron tube slide device, a considerable force is required to slide the klystron tube slide device, and since there is no stopper mechanism, there is a risk of falling. there were.

An object of the present invention is to solve the above problems and to provide a klystron tube slide device which can be slid easily and smoothly and which does not have a risk of falling even when fully pulled out.

Here, the "extraction member retaining mechanism" disclosed in Prior Art 1 is a pendulum-like stopper member which is oscillatably supported at a movement end portion in the pull-out direction. The technical idea is different from the present invention in which the upper roller and the lower roller function as stoppers when the rollers are pulled out to function as stoppers and prevent the klystron tube from falling.

Further, the "stopper mechanism for slide rail" disclosed in Prior Art 2 is such that either one of the fixed rail and the movable rail has a locking portion and the other has a stopper. The technical idea is different from that of the present invention in which the upper roller and the lower roller function as stoppers by contacting each other.

The "drawing device" disclosed in Prior Art 3 has upper and lower guide grooves for engaging the main body roller and the case roller in different grooves from opposite sides. A guide rail slidably interposed between the main body and the case,
The technical idea is different from that of the present invention in which the upper roller and the lower roller come into contact with each other to function as a stopper.

[0013]

In order to solve the above-mentioned problems, the present invention provides a klystron tube slide device for pulling out the klystron tube to the front when replacing the klystron tube accommodated in the bay. A pair of U-shaped brackets attached to both sides of the bottom and having side surfaces open, and a pair of first U-shaped brackets provided on the back side of the pair of U-shaped brackets and projecting downward from the lower plate portion of the brackets. And a pair of inverted L-shapes attached to both inner walls of the bay and having upper plates on which the first rollers roll, the lower plates facing the lower plates of the pair of U-shaped brackets, respectively. The bracket and the pair of inverted L-shaped brackets are provided on the front side, respectively, and project upward from the upper plate portion of the bracket, and the pair of U-shaped brackets are provided. It was set to comprise a pair of second rollers which roll on the lower plate lower surface of the bets.

In particular, a regulating means is provided for regulating the distance between the pair of U-shaped brackets and the corresponding pair of inverted L-shaped brackets at the position where the first roller contacts the second roller. did.

At this time, as the regulating means, a jig having one end fixed to the inverted L-shaped bracket and the other end engaged with a part of the U-shaped bracket is used.

Further, the U-shaped bracket is the first bracket.
A notch for removing the jig from the U-shaped bracket is provided in front of the roller contacting the second roller.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the structure of a klystron tube slide device according to the present invention. In FIG. 1, 11
Is a U-shaped bracket with an open side surface attached to the bottom of the klystron pipe, and 21 is an inverted L-shaped bracket attached to the inner wall surface of the frame of the bay accommodating the klystron pipe.

In the U-shaped bracket 11, the rear side of the upper plate portion 111 is formed longer than the lower plate portion 112. And, on the back side end portion of the back surface of the upper plate portion 111,
The support metal fitting 1 is arranged so as to project downward from the lower plate portion 112.
A roller 13 is rotatably mounted through 2. Further, a cutout 113 is formed slightly in front of the roller mounting portion of the upper plate portion 111.

On the other hand, in the inverted L-shaped bracket 21, the front side of the upper plate portion 211 is formed shorter than the side plate portion 212. Then, a roller 23 is rotatably mounted between the support fitting 22 and the side plate portion 212 of the bracket 21 so as to project outside the end portion of the upper plate portion 211 and above the upper plate portion 211. .

The support fitting 22 has a U-shape, and one end thereof is welded and fixed to the side plate portion 212 of the bracket 21,
The other end is bent at a height such that the roller 13 is placed on the upper plate portion 111 of the bracket 21 when the roller 13 is placed on the upper plate portion 211 of the bracket 21.

The upper plate portion 111 of the U-shaped bracket 11
A crank-shaped stopper 14 that locks the upper end of the support fitting 22 is welded and fixed to the upper surface on the back side of the roller so that the roller 13 does not ride over the roller 23.

Although not shown, it goes without saying that the above structure is provided symmetrically.

That is, in the above structure, the roller 13 on the klystron tube side is the upper plate portion 2 of the bracket 21 on the bay side.
By rolling on the upper surface of 11, and the roller 23 on the bay side rolling on the upper surface of the lower plate portion 112 of the bracket 11 on the klystron tube side, the klystron tube is moved in the directions of arrows A and B in the figure (A is the front side, B is the front side). It can slide smoothly to the back side.

Here, when the klystron tube is pulled out to the front side, the upper end of the support fitting 22 is fitted into the stopper 14 before the roller 13 rides on the roller 23, and the klystron tube side is prevented from floating. Therefore, the roller 13 does not ride on the roller 24.

When replacing the klystron tube, the upper end of the support fitting 22 can be easily removed from the bracket 11 at the position of the notch 113 by simply returning the stopper 14 from the mounting position (roller mounting position). it can.

Therefore, in the slide device having the above-mentioned structure, the klystron tube and the bay are provided with rollers 13,
Since 23 is provided, the klystron tube can be slid smoothly, and even if the klystron tube is pulled out further and the rollers 13 and 23 come into contact with each other, the bracket 11 side has a stopper function, so there is a risk of falling. It can also be eliminated.

In the above embodiment, the second roller 23
Although the upper end portion of the support metal fitting 22 supporting the above is hooked on the upper surface of the upper plate portion of the bracket 11 on the klystron tube side, another metal fitting may be used to prevent lifting. Further, the position at which the metal fitting is hooked is not limited to the upper surface of the upper plate portion of the bracket 11, but may be, for example, the upper surface of the lower plate portion. Needless to say, other various modifications are possible.

[0029]

As described above, according to the present invention, it is possible to provide a klystron tube slide device that can be easily and smoothly slid and has no risk of falling even when fully pulled out.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the structure of a klystron tube slide device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing the structure of a conventional klystron tube slide device.

[Explanation of symbols]

1 frame 2 bracket 3 klystron tube 4 bracket 11 klystron tube side bracket (U-shaped bracket) 111 upper plate part 112 lower plate part 113 notch part 12 support metal fitting 13 roller 14 stopper 21 bay side bracket (reverse L-shaped bracket) 211 Upper plate part 212 Side plate part 22 Support metal fitting 23 Roller

Claims (4)

[Claims] 1. A klystron tube slide device for pulling a klystron tube forward when replacing a klystron tube housed in a bay, wherein a pair of U-shapes attached to both sides of the bottom part of the klystron tube and having side surfaces open. A bracket, a pair of first rollers provided on the back side of the pair of U-shaped brackets and protruding downward from a lower plate portion of the bracket, and attached to both inner walls of the bay, respectively. The pair of U-shaped brackets face the lower surface of the lower plate portion, and
A pair of inverted L-shaped brackets each having an upper plate portion on which the rollers roll and a pair of inverted L-shaped brackets provided on the front side of the pair of inverted L-shaped brackets, respectively, projecting upward from the upper plate portion of the brackets, and A klystron tube slide device, comprising: a pair of second rollers that roll on the lower surface of the lower plate portion of the V-shaped bracket. 2. A restriction means for restricting a distance between the pair of U-shaped brackets and the corresponding pair of inverted L-shaped brackets at a position where the first roller abuts the second roller. The klystron tube slide device according to claim 1. 3. The restricting means uses a jig having one end fixed to the inverted L-shaped bracket and the other end engaged with a part of the U-shaped bracket. The klystron tube slide device described. 4. The U-shaped bracket is provided with a notch for removing the jig from the U-shaped bracket before the first roller comes into contact with the second roller. The klystron tube slide device according to claim 3.