JP4832379B2 - High pressure steam sterilizer - Google Patents

Description

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

A chamber having an upper surface opening provided in the sterilizer body, a lid housing supported to be freely opened and closed on the upper part of the sterilizer body, and a lid for sealing the upper surface opening of the chamber, and housed in the chamber In a high-pressure steam sterilizer for sterilizing an object under high-pressure steam, there is a high-pressure steam sterilizer in which a foot pedal is provided on the front bottom of the sterilizer body, and a lid is opened by scanning the pedal. (See Patent Document 1).
JP 2005-6927 A

In the configuration of Patent Document 1, since the lid can be opened by stepping on the pedal with the foot, the operability in the state where the hand is blocked is improved, but the high-pressure steam sterilizer that has started the sterilization process is improved. During operation, no technology is disclosed for a safety device that ensures that the lid is securely closed to ensure safety and that the lid can be opened in a safe state after the sterilization process is complete.

The present invention provides a high-pressure steam sterilizer that employs a horizontal chamber with a front opening instead of the vertical chamber as in Patent Document 1, and in this horizontal chamber, the high-pressure steam sterilizer that has started the sterilization process is provided. During operation, keep the lid closed securely to ensure safety,
The present invention provides a high-pressure steam sterilizer considering safety so that the lid can be opened in a safe state after the sterilization process is completed.

The high-pressure steam sterilizer according to the first aspect of the present invention is provided with a horizontal chamber having a front opening in the sterilizer body, and the front opening of the chamber is hermetically sealed by an opening / closing member rotatably supported by a hinge portion on the sterilizer body. A high-pressure steam sterilizer that includes a lid and sterilizes an object to be sterilized stored in the chamber under high-pressure steam, and locks the opening / closing member rotated to close the front opening of the chamber by the lid. A locking means, a solenoid-type locking device that prevents the unlocking during operation of the high-pressure steam sterilizer, and a lid position adjusting device that can adjust the position of the lid with respect to the opening and closing member by rotation of a rotary handle; The rotation position of the rotary handle includes a reverse rotation prevention means, and the lid position adjusting device is configured such that a handle shaft of the rotary handle is screwed into the opening / closing member in a penetrating state. The lid is attached to the tip of the rotating handle, and the reverse rotation preventing means of the rotary handle is provided on the ratchet tooth portion by a ratchet tooth portion formed with a plurality of locking teeth on the circumferential surface of the handle shaft and a handle solenoid. On the other hand, the opening / closing member is provided with a locking claw member that rotates in a meshing state and a non-meshing state, and the locking claw member is locked to the locking teeth during operation of the high-pressure steam sterilizer. The rotation handle is prevented from rotating, and the lid detects that the lid is properly closed with respect to the sterilizer body (the lid seals the front opening of the chamber). The lid includes a lid detection switch, and the locking means is supported by the opening / closing member so as to rotate between a locked state and a non-locking state in which the locking member on the sterilizer body side is engaged with the rotation of the opening / closing member. Locker The solenoid-type lock device includes a lock solenoid attached to the opening and closing member, and a plunger that is operated by the lock solenoid so as to hold the lock arm in a locked state during operation of the high-pressure steam sterilizer, The locking claw member is locked to the locking teeth by the operation of the handle solenoid based on the detection of the lid detection switch, and the rotation handle is prevented from rotating .

In the first invention, in the high-pressure steam sterilizer adopting the horizontal chamber with the front opening, the lid is adjusted at the position where the front opening of the horizontal chamber is securely sealed by adjusting the position of the lid with respect to the opening / closing member by rotating the rotary handle. Can be set. That is, with the opening / closing member locked by the locking means, the lid is moved to a position where the front opening of the horizontal chamber is sealed by rotation of the rotary handle, or the position of the lid with respect to the opening / closing member is set in advance and then opened / closed. By rotating the member until it is locked by the locking means, the front opening of the horizontal chamber can be reliably sealed with the lid. During operation of the high-pressure steam sterilizer, the opening / closing member rotated by the lid so as to close the front opening of the chamber is locked by the locking means, so that the opening / closing member is accidentally opened during the sterilization process. It is not rotated. In addition, even if the handle is accidentally rotated in the direction in which the lid is opened during the sterilization process, the locking claw member locks with the locking teeth and prevents the rotation handle from rotating. It is suitable for ensuring safety during operation.

Further, during the operation of the high-pressure steam sterilizer, the lock arm is held in the locked state by the plunger that is operated by the lock solenoid, so that the state in which the opening / closing member cannot be accidentally rotated in the opening direction can be maintained during the sterilization process. Further, based on the detection of the closed lid detection switch by the closed lid detection switch, the handle solenoid operates and the locking claw member is locked to the locking teeth to prevent the rotation handle from rotating. to reason, it can be confirmed whether the lid was tightly closed, because during operation of the high-pressure steam sterilizer can maintain a closed state of the lid, it becomes suitable for safety.

In the high-pressure steam sterilizer of the present invention, a horizontal chamber 4 having a front opening is provided in the sterilizer main body 2, and the opening / closing member 3 rotatably supported by the hinge portion 18 is mounted on the sterilizer main body 2. A high-pressure steam sterilizer 1 having a lid 5 for sealing a front opening and sterilizing an object to be sterilized in the chamber under high-pressure steam, wherein the front opening of the chamber 4 is closed by the lid 5. Locking means LK for locking the opened opening / closing member 3, a solenoid-type locking device 24 for preventing the unlocking during operation of the high-pressure steam sterilizer 1, and the opening / closing member 3 by rotating a rotary handle. A lid position adjusting device capable of adjusting the position of the lid 5 and a reverse rotation preventing means for the rotary handle, wherein the handle shaft of the rotary handle is configured to open and close the lid; The material 3 is screwed in a penetrating manner, the lid 5 is attached to the tip of the rotary handle, and the reverse rotation prevention means of the rotary handle is a ratchet in which a plurality of locking teeth are formed on the circumferential surface of the handle shaft. The tooth portion and the opening / closing member 3 are provided with a locking claw member that is rotated between a meshing state and a non-meshing state with respect to the ratchet tooth portion by a handle solenoid, and during operation of the high-pressure steam sterilizer 1 The locking claw member is locked to the locking teeth to prevent the rotation handle from rotating, and examples of the present invention will be described below.

An embodiment of the present invention will be described. FIG. 1 is a front perspective view of a high-pressure steam sterilizer according to the present invention, FIG. 2 is a front perspective view showing a configuration of a portion related to an opening / closing member 3 of the high-pressure steam sterilizer according to the present invention,
FIG. 3 is a front perspective view showing the configuration of the high-pressure steam sterilizer according to the present invention with the opening / closing member 3 omitted, and FIG. 4 is a side perspective view showing the state of the lock arm 10 of the high-pressure steam sterilizer according to the present invention. FIG.
FIG. 6 is an operation state explanatory view of the reverse rotation prevention means (mechanism) 300 of the rotary handle of the high pressure steam sterilizer according to the present invention, and FIG. 6 is a partial perspective view of the lid detection switch of the high pressure steam sterilizer according to the present invention.

In the figure, 1 is a high-pressure steam sterilizer of the present invention. High-pressure steam sterilizer 1 is a sterilizer body 2
A horizontal chamber 4 having a front opening is provided therein, and an opening / closing member 3 whose one side (right side in the figure) is rotatably supported by a hinge portion 18 on the front of the sterilizer body 2 is provided. Is provided with a lid 5 that seals the front opening 4A of the chamber 4, the object to be sterilized is stored in the chamber 4, the opening / closing member 3 is closed, and the lid 5 seals the front opening 4A of the chamber 4, The high-pressure steam sterilizer 1 is operated to bring the chamber 4 into a high-temperature and high-pressure state, and the sterilization target is sterilized. In order to make the front opening 4 </ b> A of the chamber 4 well sealed by the lid 5, the lid 5
The back side peripheral annular portion covers the front end portion of the front opening 4 </ b> A of the chamber 4.

When the opening / closing member 3 is rotated so as to be close to the sterilizer body 2, the lid 5 must be configured to securely seal the front opening 4 </ b> A of the chamber 4. For this reason, the lid 5 for the opening / closing member 3
The lid position adjusting device 200 that can adjust the position is provided. The lid position adjusting device 200 includes:
The screw part 203 of the handle shaft 202 of the rotary handle 201 is screwed in a state of passing through the opening / closing member 3, and the lid 5 is rotatably attached to the distal end portion of the rotary handle 201. 5 (adjustment of the state approaching the opening / closing member 3 and the state of moving away from the opening / closing member 3).

Further, in order to prevent the risk of leakage of high-temperature high-pressure steam due to the opening of the lid 5 during the operation of the high-pressure steam sterilizer 1 (during the sterilization process), the opening / closing member rotated to close the front opening of the chamber 4 by the lid 5 3 is provided with a lock means (mechanism) LK for locking 3, a solenoid-type lock device 24 for preventing release of the lock during operation of the high-pressure steam sterilizer 1, and a reverse rotation prevention means (mechanism) 300 for the rotary handle 201. Yes. Further, in order to detect that the lid 5 is in a state of sealing the front opening 4 </ b> A of the chamber 4, the lid 5 is provided with a lid detection switch 7.

The locking means LK is engaged with the locking part 11 (front opening peripheral flange part of the chamber 4 or a locking part specially provided on the sterilizer body 2) on the sterilizer body 2 side as the opening / closing member 3 rotates. A lock arm 10 supported by the opening / closing member 3 at the end opposite to the hinge portion 18 is provided so as to rotate between a locked state in which it is stopped and an unlocked state in which this locking is released. Lock arm 1
0 is supported by the opening / closing member 3 so as to be pivotable by the shaft portion 8, and a claw portion 10 </ b> A is formed in the rear portion penetrating the front wall 2 </ b> A of the sterilizer body 2, and the rear claw portion is formed by the coil spring 19. 10A is urged in the direction of the locked state in which the engaging portion 11 is engaged. For this reason, when the opening / closing member 3 is opened with respect to the sterilizer body 2 from the opened state to the properly closed state (the cover 5 closes the front opening 4A of the chamber 4), the locking portion 11 is locked to the lock arm 10. The back surface of the claw portion 10A contacts the inclined surface 10B inclined inward, and the locking member 11 pushes the inclined surface 10B as the opening / closing member 3 is closed, thereby resisting the acting force of the coil spring 19. The lock arm 10
The lock arm 10 is rotated so that the claw portion 10A escapes outward. By this action,
When the locking portion 11 passes the claw portion 10A, the lock arm 10 is restored by the acting force of the coil spring 19, and the claw portion 10A is locked to the rear surface of the locking portion 11, and the lid 5 is in the chamber 4. The front opening 4A is sealed.

The opening / closing member 3 includes an operation handle 12 for rotating the lock arm 10 from the locked state to the unlocked state. The operation handle 12 is supported by the opening / closing member 3 so that the upper and lower sides 12A of the operation handle 12 can be rotated by a shaft portion 13 (coaxial configuration with the shaft portion 8), and crosses the rear portion of the upper and lower sides 12A. The unlocking portion 14 (indicated by the bar 14 in the figure) is the lock arm 1
It is located inside 0.

In a state where the claw portion 10A of the lock arm 10 is locked to the rear surface of the locking portion 11 by the acting force of the coil spring 19, the operation handle 12 is pulled to the shaft portion 1 by pulling the operation handle 12.
3 is rotated counterclockwise (arrow Y direction) in FIG.
4 rotates the lock arm 10 counterclockwise against the acting force of the coil spring 19, and the claw portion 1
0A is rotated to an outward position that is disengaged from the rear surface of the locking portion 11 and is brought into an unlocked state. In this state, the opening / closing member 3 is rotated and opened forward about the hinge portion 18 by pulling the grip handle 12 forward, and the lid 5 opens the front opening 4A of the chamber 4 accordingly. Then, the object to be sterilized in the chamber 4 can be taken out, or the object to be sterilized can be stored in the chamber 4.

As described above, by pulling the operation handle 12, the locked state of the lid 5 is released. Therefore, when this operation is performed during operation of the high-pressure steam sterilizer 1, high-pressure steam in the chamber 4 leaks and is dangerous. . For this reason, during the operation of the high-pressure steam sterilizer 1, the operation handle 12 is used to prevent the operation handle 12 from releasing the locked state by the lock means LK.
The opening / closing member 3 is provided with a solenoid type locking device 24 that prevents the operation of the opening / closing member 3. In particular,
The solenoid-type locking device 24 includes a lock solenoid 25 attached to the lower surface of the opening / closing member 3 and the energization of the lock solenoid 25 so that the lock arm 10 is held in a locked state during operation of the high-pressure steam sterilizer 1. A plunger 26 that protrudes long when turned off is provided.

The plunger 26 protruding when the solenoid 25 is turned on or off is connected to the operation handle 12.
It penetrates the hole 27 in the lower side 12A which is a part of the lower side. Therefore, even if the operation handle 12 is operated to release the locked state, the operation handle 12 cannot be rotated, and the lock arm 10
This is a configuration in which the locked state in which the claw portion 10A is locked to the locking portion 11 cannot be removed.

As one method, the solenoid 25 retracts the plunger 26 by de-energization (OFF) and pulls the operation handle 12 to pull the opening / closing member 3 forward (the lid 5 opens the front opening 4A of the chamber 4). Open) and can be energized (ON)
The plunger 26 is caused to protrude by the above-described operation, and the operation handle 12 is restrained in the locked state as described above, so that the lid housing 3 cannot be opened (the lid 5 closes the front surface 4A of the chamber 4). can do. In this case, in the ON state of the power switch of the high-pressure steam sterilizer 1, if the temperature and pressure in the chamber 4 are in a safe state, the solenoid 25 is deenergized (OFF) based on the control unit to enter the unlocked state. High pressure steam sterilizer 1
During the operation, the solenoid 25 is energized (ON) to lock. Then, in a safe state in which the temperature and pressure in the chamber 4 have decreased due to the sterilization operation and the end of the predetermined operation mode, the solenoid 25 is deenergized (OFF) based on the control unit to open the lid housing 3 (lid 5 can open the front opening 4A of the chamber 4). In addition, when the power is turned off due to a power failure during operation of the high-pressure steam sterilizer 1 or the power switch is turned off, the solenoid is not energized (OFF), so that the operation handle 12 is not restrained in the locked state. Absent.

In order to detect a handle lock state in which the operation handle 12 is locked by the solenoid type locking device 24, an operation handle lock detection switch 28 is provided on the lower side 12A of the operation handle 12 and protrudes long by turning on or off the solenoid 25. By the plunger 26,
The switch 28 is operated, and this data (information or signal) is received by the control unit so that a predetermined operation mode can be started in a state where the locked state is confirmed. And, in the safe state where the temperature and pressure in the chamber 4 are reduced by the end of the predetermined operation mode,
The solenoid 25 is turned on or off to retract the plunger 26. Thereby, the locked state of the operation handle 12 is released, and the opening / closing member 3 can be pulled forward by the operation handle 12 (the lid 5 opens the front opening 4A of the chamber 4).

If the lid 5 is not properly closed, such as when the lid 5 is biasedly closed, the state in which the lid 5 seals the front opening 4A of the chamber 4 is insufficient. When the operation of the high-pressure steam sterilizer 1 is started, high-pressure steam in the chamber 4 leaks and is dangerous. In order to prevent this, the lid 5 detects that the lid 5 is properly closed with respect to the sterilizer body 2 (the lid 5 seals the front opening 4A of the chamber 4). A detection switch device 7 is provided. In order to accurately detect the closed state, the lid detection switch device 7 is provided with a holding member attached to the lid 5 as shown in FIG. 20 are provided with lid-closing detection switches 7A and 7B in a horizontal arrangement.

In order to activate the closure detection switches 7A, 7B by closing the lid 5, the actuating rod 21
A and 21B are provided. Specifically, the actuating bars 21A and 21B that actuate the actuating bodies 7A1 and 7B1 of the respective lid detection switches 7A and 7B are disposed through the front and rear parallel two sides 20A and 20B of the holding member 20. The actuating bars 21A and 21B are biased by coil springs 22A and 22B so as to extend rearward from the rear side 20B of the holding member 20, respectively. Specifically, each actuating rod 21A, 21B has a stopper 23A.
, 23B, and the coil springs 22A, 22B have their front ends in contact with the back side of the front side 20A of the holding member 20 and their rear ends in contact with the stoppers 23A, 23B. As a result, when the lid 5 is opened, the actuating bars 21A and 21B are urged rearward by the coil springs 22A and 22B, respectively, and the stoppers 23A and 23B abut against the front surface of the rear side 20B of the holding member 20. In this position, the actuating bars 21 </ b> A and 21 </ b> B extend a predetermined length rearward from the rear side 20 </ b> B of the holding member 20 and extend a predetermined length rearward from the lid 5.

In this configuration, when the lid 5 is properly closed (the lid 5 seals the front opening 4A of the chamber 4), the tips (rear ends) of the operation rods 21A and 21B protruding rearward from the lid 5 are Abutting against the front wall 2A of the sterilizer main body 2, the coil spring 22A as shown by the upward arrow in FIG.
The operating rods 21A and 21B are pushed so as to compress 22B. For this reason, the respective operating bodies 7A1, 7B1 of the lid detecting switches 7A, 7B are pushed by the operating rods 21A, 21B, and the lid detecting switches 7A, 7B are turned ON or OFF to detect the closed state, It is recognized that the control unit to which the closing detection switches 7A and 7B are connected is in the closing state. In addition, when the lid 5 is biased and not in the normal closed state, one of the lid detection switches 7A and 7B does not detect the closed state. In this case, the high-pressure steam sterilizer is based on the operation of the control unit. 1 is controlled not to start. In the state where the lid 5 is opened after the sterilization process is finished as described later,
Since the operating rods 21A and 21B are moved rearward by the coil springs 22A and 22B, respectively, the state of pressing the operating bodies 7A1 and 7B1 is released, and the lid detection switches 7A and 7B are restored.

As described above, when the lid 5 is opened during the operation of the high-pressure steam sterilizer 1 (during the sterilization process), the high-pressure steam in the chamber 4 leaks and is dangerous. Therefore, during the operation of the high-pressure steam sterilizer 1, the rotation handle 201 is rotated in the reverse direction so that the lid 5 does not move away from the front opening 4 </ b> A of the chamber 4. Mechanism) 300 is provided. The reverse rotation prevention means (mechanism) 300 includes a ratchet tooth portion 301 having a plurality of locking teeth 301 </ b> A formed on the circumferential surface of the handle shaft 201 on the front surface side of the opening / closing member 3. A locking claw member 303 is provided that is rotated by a solenoid 302 between a meshing state and a non-meshing state with respect to the ratchet tooth portion 301.

The locking claw member 303 has an intermediate portion rotatably supported by the shaft member 304 at the opening / closing member 3, and a locking portion 303 </ b> A that engages with the ratchet tooth portion 301 is formed at the tip, and the rear portion turns on the handle solenoid 302. It is connected via a coil spring 305 to a plunger 306 that operates by turning OFF. In this configuration, the power source of the high-pressure steam sterilizer 1 is connected, but in a state where the operation has not yet started (a state where the sterilization process is not in progress), the handle solenoid 3
Since the plunger 306 is not pulled in by ON or OFF of 02 (OFF in the embodiment, that is, non-energized in the embodiment), the locking portion 303A is separated from the locking teeth 301A of the ratchet tooth portion 301, and Rotation and reverse rotation are free.

When the operation of the high-pressure steam sterilizer 1 is started (sterilization process is started), the plunger 306 is drawn by turning the handle solenoid 302 ON or OFF (ON in the embodiment, that is, energization), and the coil spring 305 is moved to the right in the drawing. Since the locking claw member 303 is rotated clockwise in the figure around the shaft portion 304 (the position indicated by the one-dot chain line in FIG. 5), the locking portion 30 is pulled.
3A prevents the rotating handle 201 from rotating in reverse by entering and engaging between the locking teeth 301A of the ratchet teeth 301. This operation is based on detection by the lid detection switch 7 (a state in which the lid detection switches 7A and 7B are both turned ON or OFF to detect the closed state). In the embodiment, it is performed by ON, that is, energization). Then, when the predetermined operation mode ends, the chamber 4
The solenoid 301 is turned off and the plunger 306 is withdrawn in a safe state in which the temperature and pressure inside are reduced. As a result, the locked state of the rotary handle 201 is released, and the rotary handle 201 can be rotated.

By adjusting the position of the lid 5 with respect to the opening / closing member 3 by rotating the rotary handle 201, the lid 5 is set at a position where the front opening 4A of the horizontal chamber 4 is securely sealed. This setting operation is performed as described above. In a state where the opening / closing member 3 is locked via the operation handle 12 by the lock means LK, the lid 5 is moved to a position where the front opening 4A of the horizontal chamber 4 is sealed by rotation of the rotary handle 201, or in advance the rotary handle 201 The position of the lid 5 with respect to the opening / closing member 3 is set by rotation of the opening / closing member 3, and then the lid 5 seals the front opening 4 </ b> A of the horizontal chamber 4 by rotating the opening / closing member 3 to the locked state by the locking means LK. Any order of operation may be used.

In the state shown in the figure, the opening / closing member 3, the lid 5, the lid detection switch device 7, the solenoid lock device 24, the lid position adjusting device 200, and the reverse rotation prevention means (mechanism) 300 of the rotary handle are included in the high-pressure steam sterilizer 1. Although it is in a state exposed on the front surface, a decorative cover that covers these parts is provided, and this decorative cover is integrated with the opening / closing member 3 and the lid 5 and supported by the hinge portion 18 so as to be capable of opening and closing,
If the operation handle 12 and the rotary handle 201 are exposed on the front surface of the decorative cover,
These parts can be protected and the opening / closing member 3 and the lid 5 can be opened / closed, and the front surface design of the high-pressure steam sterilizer 1 is improved.

The present invention is not limited to the configurations shown in the above-described embodiments, but can be applied to various types of high-pressure steam sterilizers of horizontal chambers, and includes various forms within the technical scope of the present invention.

It is a front perspective view of the high pressure steam sterilizer concerning the present invention. Example 1 It is a front perspective view which shows the structure of the part which concerns on the opening / closing member 3 of the high pressure steam sterilizer which concerns on this invention. Example 1 It is a front perspective view which shows the structure of the state which abbreviate | omitted the opening / closing member of the high pressure steam sterilizer which concerns on this invention. Example 1 It is a side perspective view which shows the state of the lock arm of the high pressure steam sterilizer which concerns on this invention. Example 1 It is operation | movement state explanatory drawing of the reverse rotation prevention means (mechanism) of the rotary handle of the high pressure steam sterilizer which concerns on this invention. Example 1 It is a closed-lid detection switch partial perspective view of the autoclave according to the present invention. Example 1

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... High-pressure steam sterilizer 2 ... Sterilizer main body 2A ... Front wall of sterilizer main body 3 ... Opening / closing member 4 ... Horizontal chamber 4A ... Front opening of chamber 5... Lid 7... Closure detection switch device 7 A, 7 B... Lid detection switch 7 A 1, 7 B 1. ··· Shaft portion 10 ··· Lock arm 10A · · · Lock arm claw portion 10B · · · Lock arm inclined portion 11 · · · Locking portion 12 · · · Operation handle 13 · · · Shaft 14... Unlocking part 18... Hinge 19... Coil spring 24... Solenoid locking device 25... Lock solenoid 26. Adjusting device 201 ... Rotating handle 202 ... Han Dollar shaft 203 ... Screw part 300 ... Reverse rotation prevention means (mechanism) of the rotary handle
301 ... Ratchet tooth part 301A ... Locking tooth 302 ... Solenoid for handle 303 ... Locking claw member 304 ... Shaft part 305 ... Coil spring LK ... Locking means

Claims (1)

A horizontal chamber having a front opening is provided in the sterilizer body, and a lid for sealing the front opening of the chamber is provided on an opening / closing member rotatably supported by a hinge portion on the sterilizer body, and is housed in the chamber. A high-pressure steam sterilizer for sterilizing an object to be sterilized under high-pressure steam, the lock means for locking the opening / closing member rotated to close the front opening of the chamber by the lid, and the high-pressure steam sterilizer A solenoid-type locking device that prevents the release of the lock during operation; a lid position adjusting device that can adjust a position of the lid with respect to the opening / closing member by rotation of the rotating handle; and a reverse rotation preventing means for the rotating handle. In the lid position adjusting device, the handle shaft of the rotating handle is screwed in a state of penetrating the opening / closing member, and the lid is attached to the distal end portion of the rotating handle. The rotating handle reverse rotation preventing means includes a ratchet tooth portion in which a large number of locking teeth are formed on a circumferential surface of the handle shaft, and a meshing state and a non-meshing state with the ratchet tooth portion by a handle solenoid. The opening / closing member is provided with a locking claw member that is pivotally operated, and during operation of the high-pressure steam sterilizer, the locking claw member is locked to the locking teeth to prevent the rotation handle from rotating. And
The lid includes a lid detection switch for detecting that the lid is in a properly closed state with respect to the sterilizer main body (a state in which the lid seals the front opening of the chamber); Is provided with a lock arm supported by the opening and closing member so as to rotate between a locked state and an unlocked state to be engaged with the engaging portion on the sterilizer main body side with the rotation of the opening and closing member, and the solenoid type The lock device includes a lock solenoid attached to the opening and closing member, and a plunger that is operated by the lock solenoid so as to hold the lock arm in a locked state during operation of the high-pressure steam sterilizer, be characterized in that the locking claw member at the operation of the solenoid for the handle based on the detection and prevention mode rotation of the locking teeth engaged seals in the rotary handle High-pressure steam sterilizer.

Images