JP2013102814A - High-pressure steam sterilizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique that installs an unlocking mechanism in which a lid is maintained to a locked condition, a handle is pulled at the condition, the lid is maintained not to be opened at once, at the stage or the like that secures the safety, the lock of the lid is released if necessary, and the lid can be opened, when the blacking out is caused during the sterilization operation.SOLUTION: The high-pressure steam sterilizer includes: a lock device that primarily maintains in the condition in which a lid shuts the opening of a chamber; and an interlock mechanism that becomes an interlock condition to obstruct that the lock device releases the closed state of the lid when the power supply to the high-pressure steam sterilizer is cut off by the power failure or the like on the way of the sterilization operation, wherein the interlock mechanism becomes an interlock release condition by an interlock release tool.

Description

The present invention relates to a high-pressure steam sterilizer that is installed mainly in a hospital or the like and sterilizes an object to be sterilized such as a medical instrument under high-pressure steam.

As one of the high-pressure steam sterilizers, a chamber 4 having a front opening provided in the sterilizer body and a lid 5 for sealing the upper opening of the chamber 4 are provided.
There is one that performs a sterilization step of evaporating in 6 and sterilizing an object to be sterilized stored in the chamber 4 under high-pressure steam (see Patent Document 1).

In the high-pressure steam sterilizer of Patent Document 1, a gap between the opening of the chamber 4 and the lid 5 is sealed by an annular packing 5A, and a closed lid detection switch 7 for detecting that the lid 5 closes the opening of the chamber 4 is provided. In the state where the power switch is ON, the condition of the normal closed state in which the lid 5 closes the opening of the chamber 4 is detected by the closed lid detection switches 7A and 7B, and the start key 31E is set in that state. By turning on, the solenoid 25 of the solenoid type locking device 24 is turned on, and the lid 5 cannot be opened by the operation handle 12.

JP 2008-073390 A

In a high-pressure steam sterilizer, the chamber is filled with high-pressure steam during the sterilization operation, so if the power supply to the high-pressure steam sterilizer is cut off due to a power failure, the high-pressure steam flows out. Since it is dangerous, when the power supply to the high-pressure steam sterilizer is cut off due to a power failure or the like during the sterilization operation, it is required to provide a mechanism for holding the lid closed.

In view of these points, the present invention locks the lid in a closed state when the power supply to the high-pressure steam sterilizer is interrupted due to a power failure or the like during the sterilization operation, and pulls the handle in that state. A technology with an unlocking mechanism that holds the lid so that it cannot be opened even if it is opened, and can unlock the lid and open the lid as necessary, such as at the stage of ensuring safety. It is to provide.

For this reason, in the present invention, a lock device is provided in which the lid is temporarily held in a state in which the opening of the chamber is closed, the lid is held in a closed state by the lock device, and this closed state is held by an interlock mechanism. When sterilization mode is started and a power failure occurs during sterilization operation,
The interlock state by the interlock mechanism is continued, and the interlock state can be released by the interlock release tool.

The high-pressure steam sterilizer according to the first aspect of the present invention includes a chamber provided in the sterilizer body, a lid that opens and closes the opening of the chamber in a sealed state, and a lock that temporarily holds the opening of the chamber closed. A locking device that enters a state, and an interlocking state that prevents the locking device from releasing the closed state of the lid when the power supply to the high-pressure steam sterilizer is interrupted due to a power failure or the like during the sterilization operation The interlock mechanism is provided with an interlock release state by an interlock release tool.

The high pressure steam sterilizer according to a second aspect of the present invention is the high pressure steam sterilizer according to the first aspect, wherein the lock device can be manually operated to lock and unlock the lid, and the interlock mechanism is in a non-energized state. It is a solenoid type which operates an actuator that maintains the locked state and enables the unlocking operation of the lid by the locking device by energization.

A high-pressure steam sterilizer according to a third aspect of the invention includes a chamber provided in the sterilizer body, a lid that opens and closes the opening of the chamber in a sealed state, and a lock that temporarily holds the opening of the chamber closed. An apparatus, a lid detection switch for detecting the closed state of the lid, a lock detection switch for detecting the operation of the locking device with the lid closed, and high-pressure steam sterilization by a power failure or the like during the sterilization operation When the power supply to the container is cut off and during the sterilization operation, an interlock mechanism that prevents the lock device from releasing the closed state of the lid, and the interlock mechanism is in the interlock state And an interlock detection switch for detecting that the high pressure steam sterilizer is operated by the operation of the lid detection switch and the lock detection switch. The interlock mechanism operates in the interlock state based on the operation of the start switch that starts the operation of the high-pressure steam sterilizer, and the interlock mechanism finishes the intended sterilization operation and releases the interlock. It is characterized by being in an interlock release state by a tool.

In the first invention, when the power supply to the high-pressure steam sterilizer is interrupted due to a power failure or the like during the sterilization operation, the locking device enters an interlock state that prevents the lid from being released from the closed state. It is possible to prevent the danger when the lid is opened during the operation. In addition, since this interlock state is released by a special interlock release tool,
If necessary, the interlock can be released and the lid can be opened.

In the second invention, the interlock mechanism is a solenoid type that operates the actuator that maintains the lock device in the locked state in a non-energized state and enables the lock device to operate in the non-locked state when energized. When the power supply to the high-pressure steam sterilizer is interrupted due to a power failure, etc., the lock device enters an interlocking state that prevents the lid from releasing the closed state. Can prevent the dangers. A stable interlock operation can be obtained even when the lock device is configured to be manually operable to be in a locked state and an unlocked state of the lid. Further, since this interlock state is released by a special interlock release tool, the interlock can be released and the lid can be opened as necessary, such as at the stage of ensuring safety.

According to the third aspect of the present invention, a stable sterilization operation is performed in the locked state by the locking device and the locked state interlocked by the interlock mechanism depending on the detection state of each switch. When the power supply to the high-pressure steam sterilizer is interrupted due to a power failure during the sterilization operation, the locking device enters an interlock state that prevents the lid from being closed. The danger when the lid is opened can be prevented. Further, since this interlock state is released by a special interlock release tool, the interlock can be released and the lid can be opened as necessary, such as at the stage of ensuring safety.

It is a front perspective view of the high pressure steam sterilizer concerning the present invention. It is the front perspective view which opened the lid | cover of the high pressure steam sterilizer which concerns on this invention. It is explanatory drawing of the operation panel of the high pressure steam sterilizer which concerns on this invention. It is explanatory drawing of the operation state which concerns on the closure detection switch before the lid | cover of the high pressure steam sterilizer which concerns on this invention closes, (A) is a state figure of the action | operation part of a lid side, (B) is a sterilizer. It is a state figure of the slide piece of a main body side. It is explanatory drawing of the operation state which concerns on the closed cover detection switch of the state which closed the lid | cover of the high pressure steam sterilizer which concerns on this invention to a regular closed state. It is explanatory drawing of the state before the lid | cover of the high pressure steam sterilizer which concerns on this invention closes and a locking device act | operates to a locked state. It is explanatory drawing of the state which the lid | cover of the high pressure steam sterilizer which concerns on this invention closed, and the locking device act | operated to the locked state. It is explanatory drawing of the state which the lid | cover of the high pressure steam sterilizer which concerns on this invention closes, and the interlock mechanism is in an interlock state. It is a figure which shows the state by which an interlock release tool is inserted with respect to the interlock mechanism of the high pressure steam sterilizer which concerns on this invention. It is a figure which shows the state by which the interlock mechanism was in the interlock release state with the interlock release tool which concerns on this invention.

The high-pressure steam sterilizer according to the present invention includes a chamber provided in the sterilizer body, a lid that opens and closes the opening of the chamber in a sealed state, and a lock that temporarily holds the opening of the chamber closed. And an interlock mechanism that enters an interlock state that prevents the lock device from releasing the closed state of the lid when the power supply to the high-pressure steam sterilizer is interrupted due to a power failure or the like during the sterilization operation The interlock mechanism is configured to be in an interlock release state by an interlock release tool, and a preferred embodiment thereof will be described below.

The high-pressure steam sterilizer MK according to the present invention is mainly installed in a hospital or the like for sterilizing an object to be sterilized such as a medical instrument under high-pressure steam. As typical examples thereof, FIG. 1 and FIG. 2, a cylindrical chamber 4 having a front opening 2 is provided, and the front opening 2 is covered with a lid 7.
This is a horizontal type high pressure steam sterilizer MK that can be freely opened and closed by means of. Embodiments of a horizontal type high pressure steam sterilizer MK according to the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a sterilizer body of the high-pressure steam sterilizer MK, in which a cylindrical horizontal chamber 4 having a front opening 2 provided with a shelf 6 on which an object to be sterilized such as a medical instrument is placed is accommodated. The front opening 2 of the chamber 4 is either the left or right side of the sterilizer body 1 (left side in FIGS. 1 and 2).
It is sealed with a lid 7 that is rotatably supported by a lid support portion 5 of a hinge mechanism provided on the lid. For this reason, on the back side of the lid 7, an annular packing 8 is provided that is in close contact with the peripheral edge of the front opening 2 of the chamber 4 in a compressed state with the lid 7 closed in a normal state.

The operation panel 3 arranged on one side (right side in the figure) of the lid 7 on the front surface of the sterilizer main body 1 is set to set the operating conditions and operating mode of the high-pressure steam sterilizer MK as shown in FIG. Part 31;
A display unit 32 for displaying operation conditions and operation modes, a power switch SW, and the like are arranged. The setting unit 31 includes a time setting unit 31A, a reservation setting unit 31B, a sterilization temperature setting unit 31C, a sterilization time setting unit 31D, a drying time setting unit 31E, a start key (or a start button, which is a start switch operation unit. 39, a stop key 40, an up / down unit 31G for setting values of temperature, time, and time, a completion schedule key 41, and the like. The display unit 32 includes a display unit 32A such as temperature and time, a pressure gauge 32B, a process display unit 32C, a lock state display unit 32D of the lid 7, and the like.

The lid detection switch 10 and the configuration for operating it will be described. As shown in FIG.
The lid detection switch 10 is opposite to the lid support 5 with respect to the opening 2 (right side in FIGS. 1 and 2).
The sterilizer body 1 is attached to the back side of the front plate 1A. As shown in FIG. 4 and the like, the lid detection switch 10 includes an actuator 11 for opening and closing a contact provided in the case 10A of the lid detection switch 10 and a fulcrum portion on the case 10A for operating the actuator 11. 12A includes a spring-operated lever 12 supported by 12A. The spring operating lever 12 is made of a plate spring material.

Further, the sterilizer main body 1 is urged forward by the spring operating lever 12.
A slide piece 13 is slidable in the front-rear direction in a cylindrical support body 14 attached with the front plate 1A in a penetrating state. At the rear part of the slide piece 13, a locking part 13 </ b> A that locks with the stopper part 14 </ b> A at the rear part of the support 14 is formed, and the slide piece 13 has a rear end part 13 </ b> P that contacts the spring-operated lever 12. Urged forward, stopper part 1
When the locking portion 13A comes into contact with 4A, the maximum length protruding forward from the front plate 1A of the sterilizer body 1 is limited.

In the lid 7, the back plate 7 </ b> A of the lid 7 is set in a penetrating state so as to be biased in a protruding state toward the back side of the lid 7 by a coil-shaped first biasing spring 16 at a position corresponding to the slide piece 13. An operating portion 15 is provided in the attached cylindrical support 17 so as to be slidable in the front-rear direction. For this reason, the coil-shaped first biasing spring 16 is accommodated in the operating portion 15, the front end abuts on the front end wall of the operating portion 15, and the rear end is formed integrally with the support body 17 or formed separately. Is supported by the holding portion 18 and is accommodated in the operating portion 15 in a slightly compressed state. A locking portion 15A is formed at the rear portion of the operating portion 15 to be locked to the stopper portion 17A at the rear portion of the support body 17, and the operating portion 15 is attached to the back side of the lid 7 by the first biasing spring 16. When urged, when the locking portion 15A comes into contact with the stopper portion 17A, the maximum length protruding rearward from the back plate 7A of the lid 7 is limited. 4A and 4B show a state in which the lid 7 opens the opening 2, and the first biasing spring 16 and the spring operating lever 12 are in the initial state. That is, as described above, since the first biasing spring 16 is accommodated in the operating portion 15 in a slightly compressed state, the operating portion 15 protrudes rearward from the back plate 7A of the lid 7 with the maximum length. The slide piece 13 is pushed forward by the spring operating lever 12, and the slide piece 13 protrudes forward from the front plate 1A with the maximum length.

In the above configuration, by closing the lid 7, the operating portion 15 pushes the distal end of the slide piece 13 while the operating portion 15 moves through the slide piece 13 and the spring operating lever 1.
2 is pushed further backward by the pressing pressure, the slide piece 13 is further retracted, and the spring operating lever 12 reaches the state where the actuator 11 is pushed most. In this state, the action of retracting the operating portion 15 via the slide piece 13 acts, whereby the first biasing spring 16 is compressed by the pressing pressure. This state is shown in FIG. This state is a normal closed state in which the lid 7 closes the opening 2 in the normal closed state, and in this normal closed state, the annular packing 8 is in strong contact with the peripheral edge portion of the front opening 2 of the chamber 4 and is in a normal state. In the compressed state of the chamber 4
Is a normal closed state in which is closed with the lid 7. In this state, the lid detection switch 10 is turned on with its contact closed.

A main body side locking member 19 is provided in a protruding state on the front side of the front plate 1A of the sterilizer main body 1 at an intermediate position on the opposite side (right side in FIGS. 1 and 2) of the lid support 5 with respect to the opening 2. Yes. The lid 7 is provided with a lock device 20 at a position corresponding to the main body side lock member 19. The lock device 20 includes a lid-side lock member 21 into which the main body-side lock member 19 enters through a through hole 7 </ b> B formed in the back plate 7 </ b> A of the lid 7, a lock rod 22, and a switch operating body 23. The lock device 20 is configured to be able to be operated to a locked state and an unlocked state by a handle 9 provided on the front surface of the lid 7.

The lid-side lock member 21 is fixed to the lid 7, and a guide bar 26 </ b> A is attached to the lid-side lock member 21 in a vertical state in the vertical direction at a position outside the entry path of the main body-side lock member 19. . In order to stabilize the operation, the guide bar 26A has a configuration in which the guide bars 26A and 26A are arranged on the left and right sides of the approach path of the main body side locking member 19. The upper and lower sides 25A and 25B of the U-shaped support plate 25 are inserted into the guide rod 26A so as to be slidable up and down.
A lock bar 22 is attached to the upper side 25A of 5 so as to hang downward. A switch operating body 23 is attached to the lower side 25 </ b> B of the support plate 25. The support plate 25 is fixed to the handle 9, whereby the lock rod 22 can be moved up and down together with the support plate 25 by being guided by the guide rod 26 </ b> A as the handle 9 moves up and down.

The lock rod 22 and the support plate 25 of the lock device 20 are lifted with the guide rod 26A as a guide as the handle 9 is lifted, and the lid 7 is closed in this state, whereby the lock rod 22
The operating body 23 that operates integrally with the sterilizer main body 1 enters the sterilizer main body 1 through the longitudinal slot 1B of the front plate 1A of the sterilizer main body 1. At the same time, as shown in FIG. 6, the main body side lock member 19 enters the lid side lock member 21. As the handle 9 is lowered in this state, the lock bar 22 and the support plate 25 are lowered using the guide bar 26A as a guide, and the lock bar 22 enters the holes of the main body side lock member 19 and the lid side lock member 21. To lock (lock position). This state is a state in which the lid 7 is closed in the normal closed state, and the lid 7 is turned on by the lid 7 and the lock detection switch 24 is turned on by the operating body 23 (FIG. 7). To show).

In addition, by raising the handle 9 from this locked position, the lock rod 22 escapes upward from the holes of the main body side lock member 19 and the lid side lock member 21 to be in the unlocked position.

As shown in FIGS. 6 to 10, the interlock mechanism 30 includes a solenoid 32 provided on the back side of the front plate 1 </ b> A of the sterilizer body 1, an actuator 33, and a coil spring 34.
The plate-like interlock release member 38 is for manually releasing the interlock state as will be described later. In the non-energized state of the solenoid 32, the actuator 33 is advanced above the operating body 23 by the coil spring 34, prevents the operating body 23 from rising (returning), and the lock device 20 maintains the lid 7 in the locked state. In this state (interlock state), the spring detection lever 35A of the interlock detection switch 35 is pressed in this state, so that the interlock detection switch 35 is turned ON. In addition, the actuator 33 is operated so as to compress the coil spring 34 by energizing the solenoid 32, retreats from the moving path of the operating body 23 (the moving path in which the operating body 23 moves up and down), and the operating body 23 is lifted (returned). , And the unlock detection position is released to release the lock maintenance state, and the interlock detection switch 35 is turned off.

The object to be sterilized is stored in the chamber 4, the lid 7 is closed, and the lid 7 seals the front opening 2 of the chamber 4, the high-pressure steam sterilizer MK is operated to bring the chamber 4 into a high temperature and high pressure state, The object to be sterilized is sterilized. A series of sterilization operations of the article to be sterilized will be described. In the operation of the sterilization operation, first, the power switch SW is turned on (ON) to enter the standby state. In this state, the solenoid 32 of the interlock mechanism 30
Is energized and is in an excited state, and the actuator 33 is retracted in the direction of the arrow Y shown in FIG. 8 so as to be disengaged from the movement path (vertical direction path) of the operating body 23 against the spring 34, and becomes the non-interlock position.

The lid 7 is opened and an object to be sterilized is set on the heater cover 6 constituting the shelf 6 that covers the heater 6 </ b> A in the chamber 4 from the opening 2, and the lid 7 is closed. In order to maintain this state, as described above, the handle 9 of the lid 7 is operated and the lid 7 is brought into the locked state (lock position) by the lock device 20. In this state, when the lid 7 is closed as described above, the closure detection switch 10 is turned on.
The state detected by the operation and the lid 7 locked by the locking device 20 is the operating body 23.
Is detected when the lock detection switch 24 is turned on.

The high-pressure steam sterilizer MK becomes ready to start operation by an AND (multiplication operation) of the ON state of the lid detection switch 10 and the ON state of the lock detection switch 24 achieved by such an operation. In this state, desired setting is performed by the setting unit 31 while confirming the display unit 32 of the operation panel 3. By such an operation, the preparation in the standby state is completed. In the standby state in which this preparation is completed, the interlock mechanism 30 operates so as to maintain the locked state of the lid 7 by the locking device 20 by the operation of the control unit based on the ON operation of the start key 39.

That is, the solenoid 32 of the interlock mechanism 30 is de-energized and de-energized based on the ON operation of the start key 39, and the actuator 33 is opposite to the arrow Y direction by the spring 34 as shown in FIG. It protrudes in the direction and protrudes into the moving passage (vertical passage) so as to be directly above the operating body 23. For this reason, even if the handle 9 is operated upward, the operating body 23 cannot move upward, and the interlock state in which the lid 7 is locked is maintained. In this state, the tip of the actuator 33 pushes the spring-operating lever 35A of the interlock detection switch 35, so that the interlock detection switch 35 is turned on. In this state, the lock state display portion 32D of the lid 7 emits light, and an intended sterilization mode (desired sterilization operation) starts.

When a desired sterilization mode (desired sterilization operation) is started, a predetermined amount of water is injected into the chamber 4, and the water is heated and evaporated by the heater 6 </ b> A disposed at the bottom of the chamber 4.
While maintaining the inside of the chamber 4 at a predetermined temperature, the sterilization process of the object to be sterilized is performed for a predetermined time by the operation of a control unit (not shown), and after completion of the sterilization process, the exhaust drying process in the chamber 4 is performed. The desired sterilization mode (the desired sterilization operation) is completed.

When the intended sterilization mode (desired sterilization operation) is completed by the operation of the control unit (not shown), the solenoid 32 of the interlock mechanism 30 is energized and excited, and the actuator 33 resists the spring 34. Thus, the actuator 23 is retracted in the direction of arrow Y shown in FIG. Thus, the lock rod 22 is moved together with the handle 9 to the main body side lock member 19 and the lid side lock member 21 by the operation of pulling the handle 9 upward in the state where the interlock state by the interlock mechanism 30 is released.
It escapes upward from the hole and becomes the unlocked position. In this state, the handle 9 can be pulled to open the lid 7, and the object to be sterilized can be taken out.

In the above, the vertical movement of the lock rod 22 and the support plate 25 of the lock device 20 is a manual type accompanying the operation of the handle 9, but when the lid 7 is closed, the closure detection switch 10 is turned on to operate the solenoid. It is also possible to adopt a solenoid system in which the lock rod 22 and the support plate 25 are lowered by this, and the lock rod 22 and the support plate 25 are raised by deenergization of the solenoid.

As described above, during the operation of the intended sterilization mode (the intended sterilization operation) performed when the sterilization mode is started, the interlock state is established. When a power failure occurs in this state, the solenoid of the interlock mechanism 30 is operated. 32 becomes a non-energized state. As shown in FIG. 8, when the solenoid 32 is de-energized, the actuator 33 prevents the operating body 23 from rising and the lid 7 is prevented from opening. Even if the handle 9 is pulled, the lid 7 can not be opened. For this reason, the high-pressure steam in the chamber 4 does not leak and is safe.

In order to forcibly release the interlock state manually, the actuator 33 is moved to the left against the coil spring 34 as shown by an arrow Y in FIG. What is necessary is just to evacuate to a position. For this reason, the arrow Y shown in FIG. 8 is used so that the actuator 33 is manually forced to resist the coil spring 34 and deviates from the position directly above the operating body 23.
The interlock is released by moving to the left as shown in FIG.

An interlock release member 38 is provided to release the interlock when the high-pressure steam sterilizer MK fails. Since the interlock release member 38 has the actuator 33 penetrating through the hole 38A, as described above, in order to force the actuator 33 to retract against the coil spring 34 manually, as described above, Using the special interlock release tool 50 from the front side, the interlock release member 38 is rotated counterclockwise in FIG.
The actuator 33 operates to push A in the direction indicated by the arrow Y in FIG.
It can be moved to the left against the position and retracted to a position that deviates from the position directly above the operating body 23.

FIG. 9 shows a state where the interlock release tool 50 is inserted into the interlock mechanism 30. FIG. 10 shows a state where the interlock mechanism 30 is in the interlock release state by the interlock release tool 50. The interlock release member 38 is provided on the sterilizer body 1.
The front plate 1A is supported by a fixed member on the shaft support 36 so as to be rotatable on the back side of the front plate 1A. In a normal state, it is maintained in a vertical state as shown in FIGS. 8 and 9 by a biasing spring 37 or a weight balance. . Sterilization is performed so that the insertion part 51 of the plate-like interlock release tool 50 opens to the front surface of the sterilizer main body 1 through the lower space of the lid 7 by the fixing member 52 on the back side of the front plate 1A of the sterilizer main body 1. It is formed at the bottom of the vessel body 1. The insertion portion 51 is formed in a width S2 and a thickness T2 that are slightly larger than the width S1 and the plate thickness T1 of the interlock release tool 50. The reason why the interlock release tool 50 is formed in a plate shape is to make it difficult to insert other members.

The interlock release member 38 is maintained in a vertical state as shown in FIGS. 8 and 9 in a normal state, and a lower end portion thereof is inserted into the insertion portion 51 through a slit-like opening 53 formed in the upper wall of the insertion portion 51. It is kept in the state of entering. In the interlock release tool 50, an action portion 50A inclined toward the tip is formed on one side of the insertion tip.

When the high pressure steam sterilizer MK fails in the interlock state, the solenoid 32
Is in a non-energized state, and as shown in FIGS.
This is a state in which an interlocking state is prevented that prevents the lid 7 from rising and prevents the lid 7 from opening.
In this state, the lower end portion of the interlock release member 38 is in a state of entering the insertion portion 51, so that the inclined action portion 50 </ b> A is inserted by inserting the insertion tip portion of the interlock release tool 50 into the insertion portion 51. The lower end portion of the interlock release member 38 is pushed in the interlock release direction. The interlock release direction is a direction in which the actuator 33 is retracted to a position where it is disengaged from the position directly above the operating body 23.

That is, by inserting the insertion tip portion of the interlock release tool 50 into the insertion portion 51 through the lower space of the lid 7, the inclined action portion 50 </ b> A becomes the lower end portion 3 of the interlock release member 38.
8 and 9, the interlock release member 38 operates to push the flange 33A of the actuator 33 in the direction indicated by the arrow Y in FIG. As shown, the actuator 33 is moved in the direction of the arrow Y against the coil spring 34 and retracted to a position that deviates from the position directly above the operating body 23. As a result, the interlock is released. In the unlocked state, the operation of pulling the handle 9 upward causes the lock rod 22 together with the handle 9 to escape upward from the holes of the main body side lock member 19 and the lid side lock member 21 to enter the unlocked position. In this state, the handle 9 can be pulled to open the lid 7, and the object to be sterilized can be taken out.

In the high-pressure steam sterilizer according to the present invention, modifications within a range not departing from the technical scope of the present invention are within the scope of the present invention, and are not limited to the configurations shown in the above-described embodiments. Various forms are encompassed within the range of autoclaves that can be made.

DESCRIPTION OF SYMBOLS 1 .... Sterilizer main body 2 .... Front opening 3 .... Operation panel 4 .... Chamber 5 .... Lid support part 6 .... Heater cover 6A ... Heater 7. ································································· 10 ··································································· DESCRIPTION OF SYMBOLS 14 ... Cylindrical support body 14A ... Stopper part 15 ... Actuation part 15A ... Locking part 16 ... Coiled 1st biasing spring 17 ... Support body 17A ... Stopper part 18 ...... Holding part 19 ... Main body side locking member 20 ... Locking device 21 ... Lid side locking member 22 ... Lock bar 23 ... Operating body 24 ... Spring action lever 25 ...・ Support plate 26A ・ ・ Guide rod 30 ・ ・ ・ Inter Lock mechanism 32 ... Solenoid 33 ... Actuator 35 ... Interlock detection switch 36 ... Shaft support 37 ... Biasing spring 38 ... Interlock release member 50 ... Interlock release tool 50A .. Action part 51 ... Insertion part 52 ... Fixing member 53 ... Slit-like opening MK ... High-pressure steam sterilizer

Claims (3)

A chamber provided in the sterilizer body, a lid that opens and closes the chamber opening in a sealed state, a lock device that temporarily holds the chamber opening closed, and a power failure during the sterilization operation. When the power supply to the high-pressure steam sterilizer is cut off, the interlock device is provided with an interlock mechanism that prevents the lock device from releasing the closed state of the lid, and the interlock mechanism is an interlock release tool. The high-pressure steam sterilizer is released by the interlock. The lock device can be manually operated in a locked state and an unlocked state of the lid, and the interlock mechanism maintains the lock device in the locked state in a non-energized state, and the lock device by the lock device is energized. 2. The high-pressure steam sterilizer according to claim 1, wherein the high-pressure steam sterilizer is of a solenoid type that operates an actuator that can release the closed state of the lid. A chamber provided in the sterilizer body, a lid for opening and closing the opening of the chamber in a sealed state, a locking device for temporarily holding the opening in a state where the opening of the chamber is closed, and a state in which the lid is closed When the power supply to the high-pressure steam sterilizer is cut off due to a power failure or the like during the sterilization operation, the closed lid detection switch to detect, the lock detection switch to detect that the lock device has been operated with the lid closed And an interlock mechanism that is in an interlock state that prevents the lock device from releasing the closed state of the lid during the sterilization operation, and an interlock detection that detects that the interlock mechanism is in the interlock state. A high-pressure steam sterilizer is ready to start operation by the operation of the lid detection switch and the lock detection switch, Based on the operation of the start switch for starting the operation of the air sterilizer, the interlock mechanism is operated in an interlock state, and the interlock mechanism is brought into an interlock release state by an end of an intended sterilization operation and an interlock release tool. A high-pressure steam sterilizer characterized by:

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