JPH07328570A - Ultrasonic washing machine - Google Patents

Abstract

PURPOSE:To provide an ultrasonic washing machine enhanced in convenience by eliminating difficulty in ensuring a place to put the lid member detached from the upper end opening part of a washing tank and preventing the falling or loss of the lid member. CONSTITUTION:L-shaped hook pieces 41 being the engaging means with the side wall 12 of a washing tank 10 are provided to the rear surface of the lid member 40 provided to the open end part of the washing tank 10 in a freely detachable manner. Suitably, by arranging the L-shaped hook pieces 41 so that the remote end parts thereof hold the interval equal to the width of the side wall of the washing tank 10, the hook pieces 41 are also used as the fitting means fitting the lid member 40 to the upper end open part of the washing tank 10 and two notch grooves 41a are formed to the hook pieces so as to hold the same interval as the width of the short side wall of the washing tank.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic cleaning machine used for cleaning treatment during a semiconductor manufacturing process and for cleaning medical instruments, dishes and the like. 2. Description of the Related Art Conventionally, as shown in FIG. 11, an ultrasonic cleaning machine has a cleaning tank 1 in which an ultrasonic vibrator 2 is fixed to a lower surface of a bottom wall and an upper end is opened, and a cleaning tank 1 of the cleaning tank 1. The lid 3 is attached to the open upper end. This ultrasonic cleaning machine removes the lid 3 and puts the cleaning object 5 in the cleaning liquid 4 injected into the cleaning tank 1 and irradiates ultrasonic vibration from the ultrasonic vibrator 2 to the cleaning liquid 4, thereby cleaning the cleaning target. This is to remove and remove contaminants such as fats and oils attached to the surface of the object 5. Lid 3
In addition to the external fitting type in which the projecting edge 3a that fits with the outer surface of the upper end portion of the side wall 1a of the cleaning tank 1 is provided around the outer periphery,
There is an internal fitting type in which a recessed portion 3b or 3c that fits with the inner surface of the upper end portion of the side wall 1a of the cleaning tank 1 is formed as shown in FIG. In the conventional ultrasonic cleaning machine described above, it is difficult to secure a place for placing the lid removed from the cleaning tank at the time of use, or it is difficult to place the lid nearby. The lid may interfere with the work, or it may tip over if leaning against the washing tank. If the removed lid plate is placed away from the cleaning tank, it may be lost. Therefore, a main object of the present invention is to eliminate the difficulty of securing a place for placing the lid removed from the cleaning tank, and prevent the tip from falling or being lost. According to the ultrasonic cleaning machine of the present invention, the lid mounted on the open upper end of the cleaning tank detachably engages with the side wall of the cleaning tank. A matching means is provided on the back side. In operation, the lid removed from the upper end opening of the cleaning tank is held in a state of being fitted to the outer surface of the side wall of the cleaning tank through the engaging means formed on the back surface thereof. It Therefore, it is not necessary to secure a place for placing the removed lid. According to a preferred example of the present invention, the engaging means also serves as fitting means for fitting the lid body to the upper opening of the cleaning tank.
For this reason, it is not necessary to provide the lid body with a fitting means such as a projecting edge portion or a depressed portion which is different from the engaging means. If the engaging means is an L-shaped hook piece that is engaged with the upper edge of the side wall of the cleaning tank, the lid removed from the upper open end of the cleaning tank is washed through the hook piece. Can be hung on the outside of the side wall. Further, in order to more securely fix the lid to the side wall of the cleaning tank, the support protrusion is engaged with the outside of the side wall of the cleaning tank, and the second hook is also engaged with the back surface of the lid. It is also possible to engage the hook piece on the upper edge of the side wall and to engage the second hook piece and the support projection with each other. A hook and loop fastener can also be used as the engaging means. That is, one engaging piece of the hook-and-loop fastener is attached to the back surface of the lid body, the other engaging piece of the hook-and-loop fastener is attached to the outside of the side wall of the cleaning tank, and the lid body is attached to the outer surface of the side wall with this hook-and-loop fastener. You can wear it. When the cleaning tank is made of a magnetic material, the lid may be fixed to the outside of the side wall of the cleaning tank via a magnet fixed to the lid. FIG. 4 shows a first embodiment of the ultrasonic cleaning machine of the present invention. In this embodiment, reference numeral 1
Reference numeral 0 denotes a cleaning tank having a substantially rectangular parallelepiped outer shape and an open upper end, 20 denotes an ultrasonic transducer fixed to the lower surface of the bottom wall 11 of the cleaning tank 10, and 30 denotes a substrate supporting the cleaning tank 10. A table 40 is a substantially rectangular lid body that is attached to the open upper end of the cleaning tank 10. As shown in FIG. 3, the back surface of the lid 40 has L-shaped hook pieces 41 and 42 formed as engaging means at its four corners. Each hook piece 41, 42 is a cleaning tank 10
Has a substantially L-shaped bendable shape that can be engaged with the upper edge of the side wall 12 of the cover 40, and the tip end of the hook piece 41 on one long side of the lid 40 and the hook piece 42 on the other long side. Are facing each other.
The bases of the hook pieces 41 and 42 are positioned to be fitted to the upper inner surface of the side wall 12 of the cleaning tank 10 when the lid 40 is attached to the upper opening of the cleaning tank 10. Further, each hook piece 41, 42 has a notch groove 41 which can be fitted into the side wall 12.
a and 42a are formed, and the interval S1 between the cutout grooves 41a and 42a is set to a value equal to the length S2 of the short side of the cleaning tank 10. That is, according to this embodiment, the cleaning tank 1
The lid 40 removed from the upper open end of the cleaning tank 10 for injecting the cleaning liquid 4 into the container
As shown in FIG. 1, the hook piece 41 or 42 is attached to the cleaning tank 10
By engaging the upper edges of both end portions of the side wall 12a or 12b on the long side of the side wall 12a or 12b on the long side.
It can be attached to the outside of the garment. For this reason, it is not necessary to secure a place for placing the lid 40, and the lid 40 removed from the cleaning tank becomes an obstacle,
There is no fall. Also, the hook pieces 41, 42 are
Since the lid 40 also serves as a fitting means for fitting with the inner surface of the upper end of the side wall 12 when the lid is attached to the cleaning tank 10, the projecting edge 3a and the recessed portions 3b, 3c as in the conventional example of FIGS. 11 and 12 are provided. Even without it, the rattling of the lid 40 does not occur. Further, as shown in FIG. 2, the hook pieces 41 or 4 are provided.
By engaging 2 with the upper edge of the side wall 12c or 12d in the short side direction, it is possible to engage the lid 40 with the side wall 12c or 12d in the short side direction. In this case, as shown in FIG. 2, the hook piece 41 or 4
The two notch grooves 41b or 42b are fitted in the corners of the side wall 12. Further, the hook pieces 41, 42 may be formed as one hook piece extending in the long side direction of the lid body 40, or may be formed in an appropriate number such as three or four pieces. . By thus forming both of the L-shaped hook pieces 41 and 42 on the back surface, they also serve as fitting means, and at the same time, the cleaning tank without worrying about the upper and lower sides of the lid 40. Can be engaged with the side wall of the, and convenience is improved. Further, by forming the notch groove in the hook pieces 41 and 42, the lid body 40 is optionally engaged on the long side wall and the short side wall of the cleaning tank 10 depending on the surrounding conditions. It becomes possible to do. Next, in the second embodiment of the present invention shown in FIG. 5, two pieces (only one piece is shown in the figure) are arranged on the back surface of the lid 40 along one long side thereof. No. L-shaped hook piece 41, and the other end is arranged on the long side and the tip is the hook piece 41.
And a second L-shaped hook piece 43 oriented in the same direction as the tip of the. Further, on the outer side of the side wall 12 of the cleaning tank 10, an L-shaped hook-shaped support projection 13 having a tip bent upward.
Are formed. In this embodiment, the hook piece 41 is engaged with the upper edge of the side wall 12 of the cleaning tank 10, and the second hook piece 43 is engaged with the hook-shaped support protrusion 13. As a result, the lid 40 is stably held outside the side wall 12, and rattling is prevented. In the third embodiment shown in FIG. 6, a handle 44 is attached to the lid 40. And the handle 4
The hook member 45 that can be engaged with the upper edge of the side wall 12 is integrally formed with the screw member 44a for attaching the 4 to the lid 40. Therefore, the hook piece 4 is provided separately from the screw member 44a.
It is not necessary to provide the fixing means of 5. In the fourth embodiment shown in FIG. 7, one engaging piece 46a of a surface fastener 46 called by a trade name such as a magic tape or a touch-and-close fastener is provided as an engaging means on the back surface of the lid 40. The required number has been pasted. Further, the other fastening piece 46b of the hook-and-loop fastener 46 is attached to the outside of the side wall 12 of the cleaning tank 10 in correspondence with the attachment position of the fastening piece 46a. One fastening piece 46
A large number of female-side fiber groups are provided on the surface of a, and a large number of mushroom-shaped or hook-shaped male-side fiber groups that engage with the female-side fiber group are provided on the surface of the other attachment piece 46b. By the cleaning tank 1
The lid 40 removed from the open upper end of the
Can be engaged along the outside of the side wall 12 of the. When the cleaning tank 10 is made of a magnetic material such as iron, a suitable number of permanent magnets 47 are fixed to the back surface of the lid 40 as engaging means as in the fifth embodiment shown in FIG. The configuration is adopted. That is, the lid 40 removed from the open upper end of the cleaning tank 10 can be attached to the outside of the side wall 12 of the cleaning tank 10 by the magnetic attraction force of the permanent magnet 47. Further, the permanent magnet 47 may be fixed to the tip portions of the hook pieces 41 and 42 as shown in FIGS. 1 to 4 described above, as in the sixth embodiment shown in FIG. . In this case, for example, one hook piece 41 is engaged with the upper edge of the side wall 12 of the cleaning tank 10, and the permanent magnet 47 fixed to the other hook piece 41 is attracted to the outer surface of the side wall 12 of the cleaning tank 10. Alternatively, an engaging method for attracting the permanent magnets 47 of both the hook pieces 41 and 42 to the outside of the side wall 12 can be appropriately selected. In the seventh embodiment shown in FIG. 10, an appropriate number of hooks 41 are arranged on the back surface of the lid 40 along one long side, and the same number of hook pieces 41 are fixed on the other long side. The permanent magnet 47 of FIG. That is, the hook piece 41 is engaged with the upper edge of the side wall 12 of the cleaning tank 10, and the permanent magnet 47 is attracted to the outer surface of the side wall 12 made of a magnetic material to remove it from the open upper end portion of the cleaning tank 10. The lid 40 can be held outside the side wall 12 in a stable state without play. Further, when the cleaning tank 10 is made of, for example, a synthetic resin other than a magnetic material, instead of the permanent magnet 47,
It is also possible to use the fastening means by the hook-and-loop fastener 46 as in the embodiment of FIG. As described above, according to the ultrasonic cleaning machine of the present invention, the lid removed from the upper open end of the cleaning tank during use is attached to the outer surface of the side wall of the cleaning tank. Since it is possible to engage with the lid side by side, it is not necessary to secure a place to place the removed lid, so that the lid placed near the washing machine will not get in the way, fall, or get lost. Can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a state where a lid is engaged with a long side wall of a cleaning tank in a first embodiment of an ultrasonic cleaning machine according to the present invention. FIG. 2 is a perspective view showing a state in which the lid body is engaged with the short side wall of the cleaning tank in the first embodiment. FIG. 3 is a plan view showing the shape of the back surface of the lid according to the first embodiment. FIG. 4 is a partial cross-sectional view showing the overall configuration of the ultrasonic cleaning machine of the above embodiment. FIG. 5 is a partial cross-sectional view showing a state in which the lid is engaged with the outside of the long side wall of the cleaning tank in the second embodiment of the ultrasonic cleaning machine of the present invention. FIG. 6 is a partial cross-sectional view showing a state where the lid body of the third embodiment of the ultrasonic cleaning machine of the present invention is engaged with the long side wall of the cleaning tank. FIG. 7 is a partial cross-sectional view showing a state in which the lid is engaged with the long side wall of the cleaning tank in the fourth embodiment of the ultrasonic cleaning machine of the present invention. FIG. 8 is a partial cross-sectional view showing a state in which the lid body is engaged with the long side wall of the cleaning tank in the fifth embodiment of the ultrasonic cleaning machine of the present invention. FIG. 9 is a partial cross-sectional view showing a state where the lid body is engaged with the long side wall of the cleaning tank in the sixth embodiment of the ultrasonic cleaning machine of the present invention. FIG. 10 is a partial cross-sectional view showing a state where the lid body is engaged with the long side wall of the cleaning tank in the seventh embodiment of the ultrasonic cleaning machine of the present invention. FIG. 11 is a schematic cross-sectional view showing a conventional example of an ultrasonic cleaning machine. FIG. 12 is a schematic cross-sectional view showing another conventional example of the ultrasonic cleaner. [Explanation of Codes] 10 Cleaning Tanks 12, 12a to 12d Side Walls 40 Lids 41, 42, 45 Hook Pieces (Engaging Means) 43 Second Hook Pieces (Engaging Means) 46 Face Fasteners (Engaging Means) 47 Permanent Magnet (engagement means)

Claims (1)

Claim: What is claimed is: 1. An ultrasonic cleaning machine, comprising: a cleaning tank having an ultrasonic vibrator attached to the outside of a bottom surface thereof; and a lid detachably attached to the cleaning tank. The ultrasonic cleaning machine is characterized in that engaging means for detachably engaging the side wall of the cleaning tank is engaged with the back surface of the lid. 2. The hook according to claim 1, wherein the engaging means is an L-shaped hook formed in the vicinity of each of the two long sides of the lid body in parallel with each long side and discretely or continuously. An ultrasonic cleaning machine characterized by being a piece. 3. The cleaning device according to claim 2, wherein the L-shaped hook pieces are arranged such that their respective distal end portions are arranged at an interval equal to the width of the side wall of the cleaning tank. An ultrasonic cleaning machine, which also functions as a fitting means for fitting into an open upper end of a tank. 4. The L-shaped hook piece according to claim 2, wherein each of the L-shaped hook pieces has a notch groove formed at an interval substantially equal to a width of a short side wall of the cleaning tank. Ultrasonic cleaning machine. 5. The engaging member according to claim 2, wherein the engaging means is formed on a first L-shaped hook piece that is engaged with an upper edge of a side wall of the cleaning tank and an outer surface of the side wall of the cleaning tank. And a second L-shaped hook that is engaged with the support protrusion. 6. The engagement member according to claim 1, wherein the engagement means is one engagement piece of the hook-and-loop fastener, and is separable from the other engagement piece of the hook-and-loop fastener attached to the outer surface of the side wall of the cleaning tank. An ultrasonic cleaner characterized by being attached. 7. The ultrasonic cleaning machine according to claim 1, wherein the cleaning tank is made of a magnetic material, and the engaging means is a permanent magnet.