JP2005006927A - High-pressure steam sterilizer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high-pressure steam sterilizer capable of raising workability and further having high safety. <P>SOLUTION: The opening of a chamber 3 is placed at a substantial center of the upper portion of an enclosure 1, a lid 4 is connected to the upper portion of the enclosure 1 through a hinge 5, the lid 4 is pivoted around the hinge 5 to close the opening of the above chamber 3, a pawl 7 is retractably and projectably arranged relative to the periphery 4a of the above lid 4 on the upper portion of the enclosure 1 on the opposite side of the above hinge 5 relating to the opening of the chamber 3. The above pawl 7 is engaged to the periphery 4a of the lid 4 to retain the above 4 in a closed condition, and a pedal 6 arranged on a lower side face of the above enclosure 1 and the above pawl 7 are connected through a connecting means 11, the above pedal 6 is operated to cancel the engagement of the pawl 7 with the lid 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a high-pressure steam sterilizer, and more particularly to a lid locking mechanism of a high-pressure steam sterilizer.
[0002]
[Prior art]
In the high-pressure steam sterilizer, a casing that opens upward is disposed in a vertically long casing, and a chamber is defined in the casing. A lid is connected to the upper part of the casing by a hinge at the upper part of the casing so that the lid is opened and closed with the hinge as a center, and a casing opposite to the hinge with respect to the opening of the chamber. A pin is disposed on the upper part of the body, and with the lid closed, the pin is engaged with the lid to keep the lid sealed (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
JP 2000-116755 A (FIG. 1)
[0004]
[Problems to be solved by the invention]
In such a high-pressure steam sterilizer, the engagement of the lid is released by operating an operation lever disposed at the upper front of the housing.
That is, since it is necessary to operate the operation lever by hand, for example, when the hand is blocked by an article to be sterilized, the lid cannot be opened, and workability may be reduced.
[0005]
Therefore, an object of the present invention is to provide a high-pressure steam sterilizer that can improve workability and has high safety.
[0006]
[Means for Solving the Problems]
In the high-pressure steam sterilizer of the present invention, the opening of the chamber faces the substantially upper center of the housing, the lid is connected to the upper portion of the housing by a hinge, and the lid is rotated around the hinge to rotate the chamber. A claw is disposed on the upper portion of the casing opposite to the hinge relative to the opening of the chamber so as to be retractable with respect to the periphery of the lid, and the claw is disposed on the periphery of the lid. The lid is held in a closed state by engaging, the pedal disposed on the lower side surface of the housing and the claw are coupled via a coupling means, and the lid of the claw is operated by operating the pedal. It is characterized in that the engagement with is released.
According to this invention, the lid can be opened by operating the pedal with the foot, and the high-pressure steam sterilizer with good workability is obtained.
[0007]
Here, the claw may be rotatably disposed in the housing, or may be slidably disposed in the housing. Moreover, the said nail | claw and the said pedal can be connected with an appropriate connection means, for example, a link mechanism, a wire, etc.
[0008]
In the high-pressure steam sterilizer according to the present invention, in the above invention, an electromagnetic solenoid is disposed on the bedal, a hook is swingably disposed, a plunger of the electromagnetic solenoid is coupled to the hook, and A hook is engaged with the lower end of the connecting means to connect the pedal and the claw, and the electromagnetic solenoid is brought into an excited state or a non-excited state at a predetermined timing, whereby the hook and the lower end of the connecting means are It is characterized in that the engagement can be released.
According to this invention, since the connection between the claw and the pedal can be released at a predetermined time, it is dangerous to open the lid, for example, when the high-pressure steam sterilizer is in an operation process such as sterilization In addition, the lid can be prevented from opening even when the pedal is operated, and a high-pressure steam sterilizer with high safety can be obtained.
[0009]
Furthermore, in the high pressure steam sterilizer according to the present invention, in the above invention, an elastic member that is deformed when a force exceeding a predetermined level is applied is disposed at an appropriate position of the connecting means between the claw and the bedal. It is characterized by.
According to this invention, even when the pedal is operated, for example, during the sterilization process, that is, in a state where the chamber is in a high pressure state and a high pressure is applied to the claw engaged with the lid, The amount of operation can be absorbed by the deformation, and the nail is not forced to be separated from the lid, and a high-pressure steam sterilizer with higher safety is obtained.
[0010]
Here, examples of the elastic member that deforms when a force greater than the predetermined force is applied include a torsion bar, a coil spring, and the like, and these elastic members are disposed at appropriate positions of the connecting means between the claw and the bedal. By doing so, it is possible to absorb the displacement of the pedal when a predetermined force or more is applied to the claw.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the high-pressure steam sterilizer according to the present invention will be described in detail with reference to the drawings.
[0012]
FIG. 1 is a perspective view showing a high-pressure steam sterilizer according to the present invention, and FIG. 2 is a perspective view showing a lid locking mechanism. 3 to 7 are operation diagrams showing the operation of the lid locking mechanism.
[0013]
In the high-pressure steam sterilizer M according to the present invention shown in FIG. 1, a casing 2 that opens upward is installed in a vertically long casing 1, and a chamber 3 is defined in the casing 2. Then, as shown in FIG. 2, the lid 4 is connected to the upper rear portion of the housing 1 by a hinge 5, and the lid 4 is opened and closed around the hinge 5. Further, a pedal 6 is disposed in front of the lower portion of the housing 1, and two claws 7, 7 for locking the lid 4 are disposed in front of the upper portion of the housing 1.
[0014]
The pedal 6 has a stepped portion 6a at its front end, and as shown in FIG. 2, the base end 6b extends to the lower rear of the housing 1, and the base end 6b is connected to the housing via the shaft 8. The body 1 is rotatably supported. The pedal 6 has a stepped portion 6 a biased upward by a spring 9.
[0015]
Further, in the high-pressure steam sterilizer M, as shown in FIG. 2, locking mechanisms 10 and 10 for the lid 4 are configured on the front left and right inside the housing 1. The locking mechanisms 10 and 10 are composed of connecting means 11 and 11 for connecting the pedal 6 and the two claws 7 and 7, and a connection releasing means 12 for disconnecting the pedal 6 and the claws 7 from each other. Has been.
[0016]
The claw 7 is formed at the tip of the lever 13. The lever 13 is substantially L-shaped and has a shaft 14 in the middle. The lever 13 is rotatably supported by the housing 1 via the shaft 14, and the claw 7 is moved in the direction of the lid 4 by a torsion coil spring 15 disposed between the lever 13 and the housing 1. It is energized. A hole 16 is formed at the rear end of the lever 13.
[0017]
The connecting means 11 includes a rod (link rod) 17, a torsion bar 18, a hook 19 and the like.
[0018]
The rod 17 has male screws 17 a and 17 b at the upper and lower portions, and the upper male screw 17 a is inserted through the hole 16 of the lever 13. The lever 13 and the rod 17 are connected to each other by a nut 20 screwed into the male screw 17a of the rod 17. The male screw 17b below the rod 17 is screwed into the turnbuckle 21 so that the length can be adjusted.
[0019]
The torsion bar 18 has a U-shape, and an intermediate portion 18a is rotatably supported by the housing 1. One end 18 b of the torsion bar 18 is connected to the lower end of the rod 17 through the turnbuckle 21. Further, the other ends 18c, 18c of the left and right torsion bars 18 are connected to each other by a connecting member 18d as shown in FIG.
[0020]
2 and 3, the hook 19 extends downward from a hole 22 formed in the intermediate portion 6c of the pedal 6 and is attached to the pedal 6 via a shaft 23 provided at the lower end thereof. It is swingably supported. The upper end of the hook 19 is urged forward by a spring 24 disposed between the hook 19 and the pedal 6.
[0021]
On the other hand, the connection release means 12 includes an electromagnetic solenoid 25 placed and fixed on the pedal 6, a plunger 26 of the electromagnetic solenoid 25, a spring 27 interposed between the plunger 26 and the hook 19, and the like. By configuring the electromagnetic solenoid 25 in an excited state or a non-excited state at a predetermined timing, the engagement between the hook 19 and the connecting member 18d of the torsion bar 18 is maintained or the engagement is released. It is configured to do.
[0022]
The high-pressure steam sterilizer M according to the present invention configured as described above is operated as follows.
[0023]
When the power switch 28 (see FIG. 1) disposed on the side surface of the housing 1 is not operated (power OFF state), the electromagnetic solenoid 25 is in a non-excited state, and the hook 19 is attached with a spring 24. As shown in FIG. 3, the force is located in a state of being rotated counterclockwise and is separated from the connecting member 18 d of the torsion bar 18.
Further, the claw 7 is engaged with a stepped portion 4 a formed on the periphery of the lid 4 by the urging force of the torsion coil spring 15 as shown in FIG.
[0024]
In this state, when the stepping portion 6a of the pedal 6 is stepped on with a foot, the pedal 6 is rotated counterclockwise as shown in FIG. Along with this, the hook 19 is also rotated. However, since the hook 19 is not engaged with the connecting member 18d of the torsion bar 18, the claw 7 does not move at all, and the claw 7 moves to the step 4a of the lid 4. The engaged state is maintained.
That is, when the power is OFF, the lid 4 is not opened even if the pedal 6 is depressed.
[0025]
In the state of FIG. 3, when the power switch 28 is operated to turn on the power (power ON), the electromagnetic solenoid 25 is energized, thereby actuating the plunger 26 and via the spring 27 as shown in FIG. The hook 19 engages with the connecting member 18d of the torsion bar 18.
[0026]
In this state, when the stepping portion 6a of the pedal 6 is stepped on with a foot, the pedal 6 is rotated counterclockwise as shown in FIG. 6, and the hook 19 is also rotated accordingly. When the hook 19 is rotated, the lever 13 is rotated counterclockwise against the urging force of the torsion coil spring 15 via the torsion bar 18, the turnbuckle 21 and the rod 17, so that the claw 7 is closed. The lid 4 is opened after being separated from the four step portions 4a.
That is, when the power is turned on, the lid 4 can be opened by the pedal 6, and an object to be sterilized can be stored in the casing 2.
[0027]
After storing the article to be sterilized, when the lid 4 is closed and a start key (not shown) for starting a sterilization process or the like is pressed, the energization of the electromagnetic solenoid 25 is stopped, and the electromagnetic solenoid 25 is brought into a non-excited state again. As shown in FIG. 3, the hook 19 is again rotated counterclockwise by the biasing force of the spring 24, and is separated from the connecting member 18d of the torsion bar 18.
[0028]
In this state, when the stepping portion 6a of the pedal 6 is stepped on with a foot, the pedal 6 is rotated counterclockwise as in the case of the power-off state described above. However, as shown in FIG. 7 does not move at all, and the claw 7 is kept engaged with the step 4 a of the lid 4.
That is, during the operation of the high-pressure steam sterilizer M, the connection release means 12 including the electromagnetic solenoid 25 works so that the lid 4 does not open even if the pedal 6 is operated.
[0029]
When all the work steps such as sterilization are completed and the high-pressure steam sterilizer M enters a non-operating state in which the lid 4 can be opened, the electromagnetic solenoid 25 is energized, thereby actuating the plunger 26, via the spring 27, As shown in FIG. 5, when the hook 19 is again engaged with the connecting member 18d of the torsion bar 18 and the stepping portion 6a of the pedal 6 is stepped on with a foot, the lever 13 is counterclockwise as shown in FIG. The claw 7 is separated from the step 4a of the lid 4 and the lid 4 is opened.
[0030]
When the article to be sterilized is taken out of the casing 2, the lid 4 is closed, and the power switch 28 is turned off, the electromagnetic solenoid 25 is de-energized and the hook 19 is separated from the connecting member 18 d of the torsion bar 18. Even if 6 is stepped on, the lid 4 is not opened.
[0031]
Although the above-described operation is a normal operation state, the electromagnetic solenoid 25 is energized and the hook 19 is engaged with the connecting member 18d of the torsion bar 18 even though the high-pressure steam sterilizer M is in operation. Even in the state (the state shown in FIG. 5), when the sterilization operation is being performed, the pressure in the chamber 3 is high, so that a force P acts on the lid 4 and the claw 7 It will be in the state which is hard to separate from the step part 4a of the lid | cover 4. FIG.
[0032]
In this state, when the stepping portion 6a of the pedal 6 is stepped on with a foot, the pedal 6 is rotated counterclockwise as shown in FIG. The force acts, and the intermediate portion 18a rotatably supported by the casing 1 of the torsion bar 18 is twisted, and the amount of depression of the bed 6 is absorbed there, and the claw 7 is moved to the step 4a of the lid 4. It is not forced to leave.
That is, even if an abnormality occurs in the disconnecting means 12 including the electromagnetic solenoid 25, even if the pedal 6 is operated during the sterilization operation, the presence of the torsion bar 18 will affect the claws 7 in any way. The lid 4 is kept closed.
[0033]
As described above, the embodiment of the high-pressure steam sterilizer according to the present invention has been described. However, the present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the technical idea of the present invention. Needless to say, variations and modifications are possible.
[0034]
【The invention's effect】
As described above, in the high-pressure steam sterilizer according to the present invention in which the pedal is disposed on the lower side surface of the housing, the lid can be opened by operating the pedal with a foot, and the lid can be opened even when the hand is closed. Since it can be opened, there is an effect of providing a high-pressure steam sterilizer with good workability.
[0035]
Further, in the high-pressure steam sterilizer according to the present invention provided with a connection release means by an electromagnetic solenoid, the connection between the claw and the pedal can be released at a predetermined time. When the steam sterilizer is in an operation process such as sterilization, it is possible to prevent the lid from being opened even if the pedal is operated, and it is possible to provide a highly safe high-pressure steam sterilizer.
[0036]
Furthermore, in the high-pressure steam sterilizer according to the present invention in which an elastic member that deforms when a force exceeding a predetermined level is applied is disposed at an appropriate position of the connecting means, for example, during the sterilization process, that is, the chamber is in a high-pressure state. Even when the pedal is operated in a state where high pressure is applied to the claw engaged with the lid, the operation amount can be absorbed by the deformation of the elastic member, and the claw is forcibly separated from the lid. There is an effect that a high-pressure steam sterilizer with higher safety can be provided.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a high-pressure steam sterilizer according to the present invention.
FIG. 2 is a perspective view showing a lid locking mechanism.
FIG. 3 is an operation diagram showing one aspect of the operation of the lid locking mechanism.
FIG. 4 is an operation diagram showing one aspect of the operation of the lid locking mechanism.
FIG. 5 is an operation diagram showing one aspect of the operation of the lid locking mechanism.
FIG. 6 is an operation diagram showing one aspect of the operation of the lid locking mechanism.
FIG. 7 is an operation diagram showing one aspect of the operation of the lid locking mechanism.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Case 2 Casing 3 Chamber 4 Lid 5 Hinge 6 Pedal 6a Step-in part 6b Base end 6c Intermediate part 7 Claw 8 Shaft 9 Spring 10 Locking mechanism 11 Connection means 12 Connection release means 13 Lever 14 Shaft 15 Torsion coil spring 16 Hole 17 Rod (Link 杆)
17a, 17b Male thread 18 Torsion bar 18a Torsion bar intermediate portion 18b Torsion bar one end 18c Torsion bar other end 18d Torsion bar connecting member 19 Hook 20 Nut 21 Turnbuckle 22 Hole 23 Shaft 24 Spring 25 Electromagnetic solenoid 26 Plunger 27 Spring 28 Power switch

Claims (5)

With the opening of the chamber facing substantially the center of the upper part of the casing, the lid is connected to the upper part of the casing by a hinge, the lid is rotated around the hinge to close the opening of the chamber, and A claw is disposed on the upper part of the casing opposite to the hinge with respect to the opening of the chamber so as to be retractable with respect to the periphery of the lid, and the lid is closed by engaging the claw with the periphery of the lid. So that the pedal and the claw disposed on the lower side surface of the housing are connected via a connecting means, and the engagement of the claw with the lid is released by operating the pedal. A high-pressure steam sterilizer characterized by the above. An electromagnetic solenoid is disposed on the pedal, and a hook is swingably disposed. A plunger of the electromagnetic solenoid is coupled to the hook, and the hook is engaged with a lower end of the coupling means, and the pedal and The hook is connected to the electromagnetic solenoid to be in an excited state or a non-excited state at a predetermined timing so that the engagement between the hook and the lower end of the connecting means can be released. The high-pressure steam sterilizer according to claim 1. The disengagement between the hook and the lower end of the connecting means is performed when the high-pressure steam sterilizer is turned off and when the high-pressure steam sterilizer is in an operation process such as sterilization. The high-pressure steam sterilizer according to claim 2, characterized in that The elastic member which deform | transforms when the force more than a predetermined | prescribed force is arrange | positioned in the appropriate position of the connection means of the said nail | claw and the said bedal is arrange | positioned. High pressure steam sterilizer. The high-pressure steam sterilizer according to claim 4, wherein the elastic member is a torsion bar.

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