JP2024076689A - refrigerator - Google Patents

Abstract

[Problem] To provide a refrigerator capable of storing a larger amount of defrosted water and evaporating it efficiently. [Solution] The refrigerator 1 includes a refrigeration cycle 40 and a machine room 30. The refrigeration cycle 40 includes a compressor 31 and a cooler (evaporator) 32. The compressor 31 is disposed in the machine room 30. The machine room 30 includes a water storage tray 70 located above the compressor 31, into which condensation water generated in the cooler 32 is discharged. The water storage tray 70 has an attachment portion 73 for attachment to the machine room 30. The attachment portion 73 is provided inside a rear portion 70c of the water storage tray 70. [Selected Figure] Fig. 10

Description

The present invention relates to a refrigerator equipped with a machine compartment.

The refrigerator is provided with an insulated box that covers the periphery of the storage space to insulate it from the surroundings. A machine room is provided below the rear side of the insulated box, where the compressor and other components that make up the refrigeration cycle are located.

An evaporation tray is provided in the machine compartment to discharge the defrosted water generated inside the refrigerator. The evaporation tray is provided to store and evaporate the defrosted water generated when the evaporator that cools the interior of the refrigerator is defrosted. For example, Patent Document 1 discloses a refrigerator that is provided with a main evaporation tray that evaporates the defrosted water near the top of the compressor installed in the machine compartment.

Japanese Patent Application Laid-Open No. 11-101567

In recent years, refrigerators have become larger and have larger capacities, so evaporators tend to become larger as well. This creates a demand for evaporator trays that can store more defrosted water and evaporate it efficiently.

Therefore, the objective of the present invention is to provide a refrigerator that can store more defrosted water and evaporate it efficiently.

A refrigerator according to one aspect of the present invention includes a refrigeration cycle including a compressor and an evaporator, a machine room in which the compressor is arranged, and a water storage tray located above the compressor and into which condensation water generated in the evaporator is discharged. The water storage tray has an attachment portion for attachment to the machine room, and the attachment portion is provided inside the rear portion of the water storage tray.

According to one aspect of the present invention, it is possible to provide a refrigerator that can store more defrosted water and evaporate it efficiently.

1 is a front view of a refrigerator according to one embodiment of the present invention. FIG. 2 is a schematic cross-sectional view showing an internal configuration of the refrigerator shown in FIG. 1 . FIG. 2 is a perspective view showing the configuration of a rear part of the refrigerator shown in FIG. 1 . FIG. 2 is a rear view showing the configuration inside the machine compartment of the refrigerator shown in FIG. 1 . FIG. 2 is a cross-sectional view showing an internal configuration of a machine compartment of the refrigerator shown in FIG. 2 is a perspective view showing an external configuration of a water storage tray provided in the refrigerator shown in FIG. 1. 2 is a bottom view showing the external configuration of a water storage tray provided in the refrigerator shown in FIG. 1. 2 is a perspective view showing a positional relationship between a drain pipe and a water storage tray in the refrigerator shown in FIG. 1. 2 is a top view showing a positional relationship between a drain pipe and a water storage tray in the refrigerator shown in FIG. 1. FIG. 2 is a cross-sectional view showing an internal configuration of a machine compartment of the refrigerator shown in FIG.

Each embodiment of the present invention will be described below with reference to the drawings. In the following description, identical parts are given the same reference numerals. Their names and functions are also the same. Therefore, detailed descriptions thereof will not be repeated.

First Embodiment
(Overall configuration of the refrigerator)
First, the overall configuration of the refrigerator 1 according to the first embodiment will be described. Fig. 1 shows the configuration of the front side of the refrigerator 1. Fig. 2 shows a schematic internal configuration of the refrigerator 1. In Fig. 2, components in a machine room 30 other than the compressor 31 are omitted, and the configuration in the machine room 30 is illustrated in a simplified manner. Fig. 3 shows the configuration of the rear side of the refrigerator 1.

As shown in FIG. 2, the refrigerator 1 has a freezer compartment 11 on the upper level and a refrigerator compartment 12 on the lower level. The freezer compartment 11 is provided with a freezer compartment door 11a. The refrigerator compartment 12 is provided with a refrigerator compartment door 12a.

As described above, the refrigerator 1 according to this embodiment is divided into an upper section and a lower section, and each storage space is provided. A partition section 59 is provided between each storage space. However, the arrangement position of each storage space is not limited to this.

In this embodiment, the surface on which the door is provided is referred to as the front or front surface of the refrigerator. Then, with respect to the front surface, the respective surfaces of the refrigerator 1 are referred to as the top surface, side surface, back surface, and bottom surface based on the positions where the refrigerator 1 would be if installed in a normal state.

A refrigeration cycle 40 is provided inside the refrigerator 1. The refrigeration cycle 40 is configured by connecting a compressor 31, a condenser (not shown), an expander (not shown), and a cooler (evaporator) 32 via a refrigerant pipe (refrigerant flow path) through which the refrigerant flows.

As shown in FIG. 2, the compressor 31 is disposed in a machine room 30 provided on the rear side of the bottom of the refrigerator 1. The cooler 32 is disposed in a cooling room 35 provided on the rear side of the freezer room 11. In addition to the cooler 32, a cooling fan (not shown) and the like are provided in the cooling room 35. The cooling fan is provided to circulate air between the cooling room 35 and each storage space.

A control unit (not shown) is also provided inside the refrigerator 1. This control unit controls the operation of the refrigeration cycle 40. That is, the control unit drives the compressor 31, which starts the operation of the refrigeration cycle and causes the refrigerant to flow through the cycle.

Specifically, the high-temperature, high-pressure refrigerant compressed by the compressor 31 is condensed in the condenser while releasing heat. The refrigerant that has released heat is then expanded in the expander to become low-temperature, low-pressure refrigerant, and is sent to the cooler 32, which acts as an evaporator. The refrigerant that flows into the cooler 32 exchanges heat with the cold air circulating in the cooling chamber 35, evaporates while absorbing heat, and becomes a low-temperature gas refrigerant that is sent to the compressor 31. In this way, the refrigerant circulates to operate the refrigeration cycle, and cold air is generated by the airflow that has exchanged heat with the cooler 32.

(Configuration of the insulated box)
The refrigerator 1 is provided with an insulating box 50 as an insulating structure for insulating each storage space from the surroundings. The insulating box 50 is provided so as to cover the outer periphery of the refrigerator 1. As shown in FIG. 2 , the insulating box 50 mainly includes an outer box 61, an inner box 62, and an insulating layer 56.

The outer box 61 forms the outer peripheral surface of the insulated box body 50. The outer box 61 is mainly composed of a top surface portion 50a, a side surface portion 50b, a back surface portion 50c, and a bottom surface portion 50d. The inner box 62 forms the inner peripheral surface of the insulated box body 50.

A space for arranging the machine room 30 is formed on the rear side of the bottom of the insulated box 50. In other words, the machine room 30 is arranged outside the insulated box 50. This is because the temperature inside the machine room 30 rises when the compressor 31 is operated.

The insulating layer 56 is provided in the space between the outer box 61 and the inner box 62. The insulating layer 56 includes, for example, a vacuum insulating material and a foam insulating material. The foam insulating material can be formed, for example, from foamed polyurethane (also called rigid urethane foam).

(Machine room interior configuration)
Next, a more detailed configuration of the machine room 30 provided below the rear side of the insulating box 50 will be described. Fig. 4 and Fig. 5 show the configuration inside the machine room 30. Fig. 4 is a rear view of the lower part of the refrigerator 1. Fig. 5 is a cross-sectional view of the inside of the machine room 30. Fig. 5 is a vertical cross-sectional view of the refrigerator 1 at a position where a drain flow path 76 of a water storage tray 70 arranged inside the machine room 30 is formed.

The rear portion 50c of the insulated box 50 is mainly composed of the back plate of the outer box 61. The machine room 30 is located below the rear portion 50c. The machine room 30 is mainly defined by a bottom plate 63 that forms the bottom surface portion 50d of the insulated box 50. As shown in FIG. 2, the rear portion of the bottom plate 63 is raised upward. Parts of the bottom plate 63 form the front portion 63a, first top surface portion 63b, rear vertical wall portion 63c, and second top surface portion 63d of the machine room 30 (see FIG. 5).

The bottom surface of the machine room 30 is formed by the machine room bottom plate 64. The side surface of the machine room 30 is formed by the side surface portion 50b of the outer box 61.

Inside the machine room 30, a compressor 31 and a water storage tray (also called an evaporation tray) 70 are arranged. The compressor 31 is arranged slightly to the right of the machine room 30 when viewed from the back (left side when viewed from the front). In another example, the compressor 31 may be arranged slightly to the left of the machine room 30 when viewed from the back (right side when viewed from the front).

The water storage tray 70 is disposed above the compressor 31. Condensed water (also called drain water) generated in the cooling chamber 35 is discharged into the water storage tray 70. Condensed water generated in the cooling chamber 35 includes, for example, defrosted water generated when the cooler 32 is defrosted. As shown in FIG. 5 and other figures, a recess 72 curved upward is formed in the bottom surface portion 70d of the water storage tray 70. This recess 72 is molded into a shape that matches the shape of the upper portion (head) of the compressor 31.

(Configuration of water storage tray)
Next, a more detailed configuration of the water storage tray 70 will be described. Figures 6 and 7 show the configuration of the water storage tray 70. Figure 6 is a perspective view of the water storage tray 70 as viewed from above the front side. Figure 7 is a plan view of the water storage tray 70 as viewed from the bottom side.

The water storage tray 70 is generally shaped like a rectangular box. The upper part of the water storage tray 70 is open. The outer shape of the water storage tray 70 is mainly composed of a front surface 70a, left and right side surfaces 70b, a back surface 70c, and a bottom surface 70d. The name of each surface is determined based on the position of the water storage tray 70 when it is attached to the refrigerator 1. These surfaces form a water storage section 71. The water storage tray 70 has the water storage section 71, so that it can store drain water discharged from the drain pipe 43 located above.

The front portion 70a, the left and right side portions 70b, 70b, and the back portion 70c form the side walls of the water storage tray 70.

The bottom surface 70d of the water storage tray 70 has a recess 72 that conforms to the shape of the head of the compressor 31. For example, the recess 72 has a shape similar to a dome-shaped raised elliptical plane.

The water storage tray 70 has an attachment portion 73 extending upward on its rear side. The number of attachment portions 73 is not particularly limited, but in this embodiment, two attachment portions 73 (specifically, attachment portion 73a and attachment portion 73b) are provided. As shown in FIG. 4, the attachment portion 73 is fixed to the rear vertical wall portion 63c by a screw or the like.

The mounting portion 73 is provided inside (i.e., forward of) the back surface portion 70c of the water storage tray 70. As shown in FIG. 6, the mounting portion 73 is disposed within the water storage portion 71. The mounting portion 73 extends upward from the bottom surface portion 70d that forms the bottom surface of the water storage portion 71. As shown in FIG. 7, the mounting portion 73 has a cavity 74 therein that communicates with the space below the water storage tray 70.

The mounting portion 73 has a cavity 74, which allows the heat transfer area to be enlarged. This allows the heat of the compressor 31 to be transferred more efficiently to the condensed water in the water storage portion 71, and increases the amount of water that evaporates from the water storage portion 71.

In this embodiment, one of the two mounting parts 73a and 73b provided on the water storage tray 70, mounting part 73a, is located in the formation area of the recess 72 (see FIG. 7). As shown in FIG. 5, the lower surface of the recess 72 is close to the head of the compressor 31, so heat from the compressor 31 is easily transferred thereto. Therefore, by arranging mounting part 73a in the formation area of the recess 72, heat from the compressor 31 can be transferred to mounting part 73a more efficiently.

In addition, as shown in FIG. 7, the cavity 74 inside the mounting portion 73a is formed so as to partially overlap with the area in which the recess 72 is formed, so that the heat generated by the compressor 31 can be efficiently transferred into the cavity 74.

The interior of the water storage section 71 is divided into multiple regions by several partition walls (e.g., partition wall 75) erected from the bottom surface section 70d. The partition walls 75 are provided slightly inside the outer periphery of the recess 72 and follow the shape of the recess 72. Condensed water discharged from the drain pipe 43 is preferentially stored in the water storage region surrounded by the partition walls 75.

The area surrounded by the partition wall 75 is located above the recess 72 adjacent to the head of the compressor 31, so heat generated by the compressor 31 is more easily transferred to this area. Therefore, the drain water stored in the area surrounded by the partition wall 75 evaporates in a shorter time than the drain water in other areas of the water storage section 71.

A drain pipe 43 is disposed above the area partitioned by the partition wall 75. Figures 8 and 9 show the positional relationship between the drain pipe 43 and the water storage tray 70. The drain pipe 43 extends from within the cooling chamber 35 to the machine chamber 30. The drain pipe 43 is disposed on the rear portion 50c side of the insulated box body 50, and extends vertically from below the cooling chamber 35 to the machine chamber 30.

As shown in FIG. 8, a water storage tray 70 is disposed below the drain pipe 43. Drain water generated in the cooling chamber 35 during defrosting operation is discharged from an opening on the bottom surface of the cooling chamber 35 through the drain pipe 43 into the water storage tray 70.

More specifically, the water receiving portion 77 provided on the water storage tray 70 is located directly below the drain pipe 43. The water receiving portion 77 is located above the bottom surface portion 70d of the water storage portion 71. A groove 77a extending in the front-rear direction is formed on the upper surface of the water receiving portion 77.

A drain flow path 76 is provided around the water receiving portion 77, extending upward toward the drain pipe 43. The drain flow path 76 is provided at a position overlapping with the drain pipe 43 in a top view (see FIG. 9).

By providing such a drain flow path 76 and water receiving portion 77, the drain water dripping from the drain pipe 43 first falls along the drain flow path 76 into the water receiving portion 77. The drain water that falls into the water receiving portion 77 is then guided into the area surrounded by the partition wall 75 along the direction of the groove 77a. This makes it possible to reduce dripping noise and splashing compared to when the drain water falls directly from the drain pipe 43 into the water storage portion 71 of the water storage tray 70.

In this embodiment, as shown in FIG. 5, the lower end of the drain pipe 43 and the upper end of the drain flow path 76 are positioned so that they slightly overlap when viewed from the side. However, in another embodiment, they may be positioned so that there is a gap between the lower end of the drain pipe 43 and the upper end of the drain flow path 76.

A hollow portion 78 is provided on the rear surface portion 70c of the water storage tray 70 below the drain flow path 76. This hollow portion 78 can be used to exhaust heat generated by the compressor 31. As shown in FIG. 7 and other figures, the hollow portion 78 is formed from the bottom surface portion 70d to the rear surface portion 70c. That is, the end of the hollow portion 78 formed on the bottom surface portion 70d is continuous with the recess 72. In addition, the upper end of the hollow portion 78 formed on the rear surface portion 70c extends to the water receiving portion 77 of the drain flow path 76.

In this way, the water storage tray 70 is formed with a hollowed-out portion 78 that extends from the recess 72 adjacent to the head of the compressor 31 to the water receiving portion 77. This allows the heat generated by the compressor 31 to be provided to the water receiving portion 77 via the hollowed-out portion 78. This allows the drain water adhering to the water receiving portion 77 to evaporate quickly, and reduces dripping noise and splashing caused by the drain water falling from the drain pipe 43 colliding with the drain water adhering to the water receiving portion 77. The hollowed-out portion 78 also allows the heat generated by the compressor 31 to be guided to the back of the refrigerator 1.

Next, we will explain how to attach the water storage tray 70 to the machine room 30. Figure 10 shows a vertical cross-sectional view of the refrigerator 1 at the position where the attachment part 73 of the water storage tray 70, which is located inside the machine room 30, is formed.

As described above, the mounting portion 73 is disposed inside (i.e., forward of) the back surface 70c of the water storage tray 70. The upper end of the mounting portion 73 is fixed to the bottom plate 63 forming the inner wall of the machine room 30. More specifically, the upper portion of the mounting portion 73 is disposed so as to contact the rear vertical wall portion 63c of the machine room 30, and is fixed to the rear vertical wall portion 63c by a fixing member such as a screw. The rear vertical wall portion 63c is located forward of the rear surface portion 50c of the heat-insulating box 50 (see FIG. 10). In this embodiment, the rear surface portion 70c of the water storage tray 70 is located approximately flush with the rear surface portion 50c of the heat-insulating box 50.

Since the mounting portion 73 is located forward of the back surface portion 70c, the water storage portion 71 is also present on the rear side of the mounting portion 73. This water storage portion on the rear side of the mounting portion 73 is referred to as the water storage portion 71A. The drain flow path 76 is also located on the rear side of the mounting portion 73.

In addition, the top surface of the machine room 30 located on the rear side of the mounting portion 73 (i.e., the second top surface portion 63d) is located higher than the top surface of the machine room 30 located on the front side of the mounting portion 73 (i.e., the first top surface portion 63b).

With the above configuration, the upper part of the water storage section 71A, located on the rear side of the mounting section 73, is open to the outside of the storage unit. This makes it easier for heat to escape from inside the water storage section 71A to the rear side, as shown by the arrow in Figure 10.

The mounting portion 73 adjacent to the water storage portion 71A has a cavity 74 that communicates with the lower portion of the machine room 30. This allows the heat of the compressor 31 to be transferred to the cavity 74, and the heat can be transferred more efficiently into the water storage portion 71A, thereby increasing the amount of water that evaporates from the water storage portion 71A.

(Summary of the first embodiment)
As described above, the refrigerator 1 according to this embodiment includes the refrigeration cycle 40 and the machine room 30. The refrigeration cycle 40 includes the compressor 31 and the cooler (evaporator) 32. The compressor 31 is disposed in the machine room 30. The machine room 30 includes the water storage tray 70 located above the compressor 31 and into which condensation water generated in the cooler 32 is discharged.

The water storage tray 70 has at least one attachment portion 73 for attachment to the machine room 30, and this attachment portion 73 is provided inside (i.e., forward) of the rear portion 70c of the water storage tray 70.

This configuration allows a water storage area to be created behind the mounting portion 73 to store condensation water. This allows the rear portion 70c of the water storage tray 70 to be formed up to the vicinity of the rear portion 50c of the refrigerator 1, allowing more defrosted water to be stored in the water storage tray 70. In addition, by forming the water storage portion 71A behind the mounting portion 73, the space above the water storage portion 71A can be opened widely, allowing evaporated water vapor to be smoothly released outside the refrigerator. This prevents water vapor from accumulating above the water storage tray 70, allowing the defrosted water to evaporate efficiently.

Second Embodiment
Next, a second embodiment of the present invention will be described. In the first embodiment, the water storage tray 70 having two mounting portions 73a and 73b has been described as an example. However, the number of mounting portions provided on the water storage tray is not limited to two.

In the second embodiment, a water storage tray 70 having one mounting portion 73 is described. In a configuration in which the water storage tray 70 has only one mounting portion 73, it is preferable that the mounting portion 73 is disposed in the area in which the recess 72 is formed. In other words, it is preferable that the mounting portion has the same mounting portion as the mounting portion 73a described in the first embodiment.

The above configuration allows the heat of the compressor 31 to be transferred more efficiently to the mounting portion 73, making it easier to evaporate the water in the water storage portion 71 (particularly the water storage area separated by the partition wall 75).

Third Embodiment
Next, a third embodiment of the present invention will be described. In the first embodiment, the configuration in which the hollow portion 78 is provided below the drain passage 76 has been described. However, such a hollow portion does not necessarily have to be provided.

In the third embodiment, the water storage tray 70 has a groove for dissipating heat provided on the back surface 70c or the side surface 70b of the water storage tray 70 instead of a hollowed-out portion. One end of this groove for dissipating heat is continuous with the recess 72, and the other end extends to the upper end of the side wall.

This configuration allows a portion of the heat transferred from the compressor 31 to the recess 72 of the water storage tray 70 to be discharged from the groove formed in the bottom surface 70d to the back surface 70c or side surface 70b.

(summary)
A refrigerator (e.g., refrigerator 1) according to one aspect of the present invention includes a refrigeration cycle (e.g., refrigeration cycle 40) including a compressor (e.g., compressor 31) and an evaporator (e.g., cooler 32), a machine room (e.g., machine room 30) in which the compressor is arranged, and a water storage tray (e.g., water storage tray 70) located above the compressor and into which condensation water generated in the evaporator is discharged. The water storage tray has an attachment portion (e.g., attachment portions 73 (73a and 73b)) to the machine room, and the attachment portion is provided inside a back portion (e.g., back portion 70c) of the water storage tray.

In the refrigerator (e.g., refrigerator 1) according to one aspect of the present invention described above, the attachment portion (e.g., attachment portions 73 (73a and 73b)) is provided so as to extend upward from the bottom surface (e.g., bottom surface portion 70d) of the water storage portion (e.g., water storage portion 71) of the water storage tray, inside the back surface (e.g., back surface portion 70c) of the water storage tray (e.g., water storage tray 70), and the attachment portion may have a cavity (e.g., cavity 74) therein that communicates with the space below the water storage tray.

In the refrigerator (e.g., refrigerator 1) according to one aspect of the present invention described above, a recess (e.g., recess 72) that conforms to the shape of the head of the compressor (e.g., compressor 31) is provided on the bottom surface (e.g., bottom surface 70d) of the water storage section (e.g., water storage section 71), and at least one of the mounting sections (e.g., mounting section 73a) may be located in the area where the recess is formed.

The refrigerator (e.g., refrigerator 1) according to one aspect of the present invention described above further includes a drain pipe (e.g., drain pipe 43) that guides condensation water generated in the evaporator (e.g., cooler 32) to the water storage tray (e.g., water storage tray 70). The water storage tray is provided with a drain circulation path (e.g., drain circulation path 76) that extends toward the drain pipe at a position that overlaps with the drain pipe in a top view, and the drain circulation path may have a water receiving portion (e.g., water receiving portion 77) that is located above the bottom surface (e.g., bottom surface portion 70d) of the water storage portion (e.g., water storage portion 71).

In a refrigerator (e.g., refrigerator 1) according to one aspect of the present invention described above, the mounting portion (e.g., mounting portions 73 (73a and 73b)) is attached to a wall portion (e.g., rear vertical wall portion 63c) of the machine room (e.g., machine room 30) located forward of the rear portion (e.g., rear portion 50c) of the refrigerator, and the top surface (e.g., second top surface portion 63d) of the machine room located rearward of the mounting portion may be located higher than the top surface (e.g., first top surface portion 63b) of the machine room located forward of the mounting portion.

The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is indicated by the claims rather than the above description, and is intended to include all modifications within the meaning and scope of the claims. Furthermore, configurations obtained by combining the configurations of the different embodiments described in this specification are also included in the scope of the present invention.

1: refrigerator 11: freezer compartment 12: refrigerator compartment 30: machine compartment 31: compressor 32: cooler (evaporator)
35: Cooling chamber 40: Refrigeration cycle 43: Drain pipe 50: Insulated box 63: Bottom plate 63a (of insulated box): Front portion 63b (of machine room): First top surface portion 63c (of machine room): Rear vertical wall portion 63d (of machine room): Second top surface portion 64 (of machine room): Bottom plate 70 (of machine room): Water storage tray 70a: Front portion 70b (of water storage tray): Side portion 70c (of water storage tray): Rear portion 70d (of water storage tray): Bottom portion 71 (of water storage tray): Water storage portion 72: Recess 73: Mounting portion 74: Cavity 75: Partition wall 76: Drain flow path 77: Water receiving portion 78: Hollow portion

Claims (5)

a refrigeration cycle including a compressor and an evaporator;
a machine room in which the compressor is disposed;
a water storage tray located above the compressor and into which condensation water generated in the evaporator is discharged;
the water reservoir has an attachment portion for attachment to the machinery compartment;
The attachment portion is provided inside a rear portion of the water storage tray. The mounting portion is provided so as to extend upward from a bottom surface of the water storage portion of the water storage tray, the bottom surface being located inside a rear surface of the water storage tray,
The mounting portion has a cavity therein that communicates with a space below the water storage tray.
2. The refrigerator according to claim 1. A recess is provided on the bottom surface of the water storage portion of the water storage tray, the recess conforming to the shape of the head of the compressor,
At least one of the mounting portions is disposed in a region where the recess is formed.
2. The refrigerator according to claim 1. A drain pipe is further provided to guide condensed water generated in the evaporator to the water storage tray.
The water storage tray is provided with a drain passage extending toward the drain pipe at a position overlapping with the drain pipe in a top view,
The drain flow path has a water receiving portion located above the bottom surface of the water storage portion of the water storage tray.
2. The refrigerator according to claim 1. The mounting portion is attached to a wall portion of the machine compartment located forward of a rear portion of the refrigerator,
a top surface of the machine room located on the rear side of the mounting portion is located at a higher position than a top surface of the machine room located on the front side of the mounting portion;
A refrigerator according to any one of claims 1 to 4.

Images