Claims
- 1. An image recording and read-out apparatus comprising:
- an endless recording belt having a stimulable phosphor layer,
- a group of conveyor rollers for supporting and circulating said recording belt,
- an image recording section for recording a radiation image of an object on said stimulable phosphor layer by exposing said stimulable phosphor layer to a radiation passing through said object,
- an image read-out section consisting of a stimulating ray source for emitting stimulating rays for scanning said stimulable phosphor layer carrying said radiation image stored thereon, and a photoelectric read-out means for detecting light emitted from said stimulable phosphor layer scanned with said stimulating rays to obtain an electric image signal,
- an erasing section for, prior to the next image recording on said stimulable phosphor layer for which the image read-out has been conducted in said image read-out section, exposing said stimulable phosphor layer to erasing light to release the radiation energy remaining on said stimulable phosphor layer,
- a snaking detection means for detecting the amount and direction of snaking of said recording belt, and
- a snake suppression means for suppressing snaking of said recording belt which, in response to the output of said snaking detection means, swings the axis of rotation of a prescribed one of said group of conveyor rollers in a direction which produces substantially no change in the length of the conveyance path of said recording belt, wherein said prescribed one of said group of conveyor rollers is swung about one end of a shaft thereof, and wherein said prescribed one of said group of conveyor rollers i moved within a plane having an angle of 45 degrees with respect to an angle at which said recording belt approaches said prescribed one of said group of conveyor rollers and an angle at which said recording belt leaves said prescribed one of said group of conveyor rollers.
- 2. A radiation image recording and read-out apparatus as defined in claim 1 wherein said group of conveyor rollers comprises two roller sections separated from each other by a distance equal to not more than 1.5 times the length of the largest sized radiation image which can be recorded in said image recording section and said recording belt is conveyed to pass between said roller sections separated by said distance.
- 3. A radiation image recording and read-out apparatus as defined in claim 1 wherein said snaking detection means comprises a light emitter and a light receiver disposed in facing relation on opposite sides of said recording belt with one half of a light emitting face of said light emitting member being covered by said recording belt when said recording belt is traveling normally and said light receiver detects the direction and amount of snaking of said recording belt from changes in the quantity of light it receives from said light emitter.
- 4. An image recording and read-out apparatus comprising:
- an endless recording belt having a stimulable phosphor layer,
- a group of conveyor rollers for supporting and circulating said recording belt,
- an image recording section for recording a radiation image of an object on said stimulable phosphor layer by exposing said stimulable phosphor layer to a radiation passing through said object,
- an image read-out section consisting of a stimulating ray source for emitting stimulating rays for scanning said stimulable phosphor layer carrying said radiation image stored thereon, and a photoelectric read-out means for detecting light emitted from said stimulable phosphor layer scanned with said stimulating rays to obtain an electric image signal,
- an erasing section for, prior to the next image recording on said stimulable phosphor layer for which the image read-out has been conducted in said image read-out section, exposing said stimulable phosphor layer to erasing light to release the radiation energy remaining on said stimulable phosphor layer,
- a snaking detection means for detecting the amount and direction of snaking of said recording belt, and
- a snaking suppression means, connected to a first end of a shaft of a prescribed one of said group of conveyor rollers, for suppressing snaking of said recording belt which, in response to the output of said snaking detection means, swings the axis of rotation of said prescribed one of said group of conveyor rollers in a direction which produces substantially no change in the length of the conveyance path of said recording belt, said snaking suppression means comprising a belt, a plurality of rollers, and a motor, and wherein said prescribed one of said group of conveyor rollers is swung about said first end of a shaft thereof, and wherein a second end of said shaft of said prescribed one of said group of conveyor rollers is fixed to said apparatus so that said prescribed one of said group of conveyor rollers can be swung about said first end thereof.
Priority Claims (1)
Number |
Date |
Country |
Kind |
63-66743 |
Mar 1988 |
JPX |
|
Parent Case Info
This is a continuation of U.S. application No. 07/297,358 filed Jan. 13, 1989, now abandoned.
US Referenced Citations (7)
Foreign Referenced Citations (4)
Number |
Date |
Country |
0038207 |
Oct 1981 |
EPX |
0077678 |
Apr 1983 |
EPX |
5611395 |
Feb 1981 |
JPX |
199708 |
Dec 1982 |
JPX |