Ice cube outlet cover assembly

Abstract: A cover assembly for an ice cube outlet of a refrigerator is disclosed. The assembly includes a cover member (40) having a pair of spaced hinge shaft support members (41) extending therefrom, a hinge shaft (42) extending laterally from the free end of each of the hinge shaft support members (41) for insertion into hinge support means (43) on the refrigerator and a spring support bar (44) between the hinge shaft support members (41) to receive a spring (45) to bias the cover (40) against the outlet. The spring support bar (44) extends laterally from one hinge shaft support member (41) and terminates short of the other hinge shaft support member (41) such that a spring (45) can be slid onto the spring support bar (44) between the hinge shaft support members (41).

Description: The present invention relates to a cover assembly for an ice cube outlet of a refrigerator including a cover member having a pair of spaced hinge shaft support members extending therefrom, a hinge shaft extending laterally from the free end of each of the hinge shaft support members for insertion into hinge support means on the refrigerator, and a spring support bar between the hinge shaft support members to receive a spring to bias the cover against the outlet, and a cover actuating lever for moving the cover between an open position and a closed position in which the cover is biased against the outlet. A refrigerator is an appliance in which perishable foodstuffs are stored to keep them fresh. An evaporator generates cool air which is circulated around food storing compartments in the refrigerator. Demand for bigger refrigerators is increasing so that larger quantities of food can be stored. The majority of large conventional domestic refrigerators are of a side-by-side type in which a vertical partition separates the cabinet forming the framework of the refrigerator lengthwise into refrigerating and freezing compartments. Accordingly, the doors mounted on the front of each compartment are also arranged side by side. An automatic ice making device is provided in the freezing compartment and an ice cube dispensing device is incorporated in the door to enable ice cubes to be dispensed directly to outside of the refrigerator without the need to open the door. Ice cubes made by the automatic ice making device are stored in an ice cube storing vessel located in the freezing compartment door. When a user operates the ice cube dispensing device, ice cubes stored in the ice cube storing vessel are discharged through the ice cube outlet. Such a refrigerator is disclosed in US-A-4 090 641. A conventional ice cube outlet cover assembly is illustrated in Figure 1. The ice cube outlet cover assembly is disposed in an access opening 8 formed in the freezing compartment door and includes a cover 2 which is mounted over and around an ice cube outlet 1 and a cover actuating lever 3 operable to cause the cover 2 to open and close ice cube outlet 1. A guide member 4 is mounted in front of the cover actuating lever 3 for guiding ice cubes from the ice cube outlet 1 to a receptacle (e.g. glass or cup) positioned beneath the outlet 1. The cover 2 is hingedly mounted over the ice cube outlet 1. Connecting members 2a extend upwardly from either side of the cover 2 and are rotatably mounted to a bracket 5 above the ice cube outlet 1. A projection 2c extends outwardly from the lower end of each connecting member 2a. The bracket 5 has support portions 5b at both lateral ends, and is fixed to an inner wall 8a forming the access opening 8 by screws 5a. Holes 2b and 5c are formed at upper ends of the connecting members 2a, and the support portions 5b of the bracket 5, respectively. A hinge shaft 6 is inserted into the holes 2b and 5c to rotatably mount the cover 2 to the bracket 5. A torsion coil spring 7, located on the hinge shaft 6, provides an elastic force or spring bias to the hinge shaft 6 and biases the cover 2 into a position wherein the ice cube outlet 1 is closed by the cover 2 in a normal state. The coil spring 7 is disposed around the hinge shaft 6, with one end of the spring 7 supported by the bracket 5 and the other end thereof supported by the cover 2, thereby biasing the cover 2 into the normal state in which the cover 2 is positioned over the outlet so as to close it. The cover actuating lever 3 includes an upper actuating portion 3a having a semicircular shape which surrounds the periphery of the cover 2 and a pushing arm 3b extending downwardly from the actuating portion 3a. Hinge shafts 3c project outwardly from outer lower sides of the actuating portion 3a and are supported by support members 9 disposed below the ice cube outlet 1. The support member 9 includes a receiving element 9a attached to the inner wall 8a of the access opening 8 and which has a transverse groove therein for receiving the hinge shaft 3c, and a fixing or securing element 9b mounted to the receiving element 9a by a screw. Thus, the cover actuating lever 3 is rotatably mounted on the supporting member 9 when the hinge shafts 3c are inserted into the respective receiving elements 9a, with the fixing elements 9b mounted to the receiving elements. Pushing bars 3d project inwardly from inner upper sides of the actuating portion 3a and push the projections 2c of the connecting member 2a to open the cover 2 when the pushing arm 3b of the cover actuating lever 3 is pressed. A disadvantage with the type of device described above with reference to Figure 1 is that it is difficult to assemble due to the considerable number of steps required. Firstly, the bracket must be attached to the wall by screws, the connecting members of the cover must be located in the bracket; and the hinge shaft with the coil spring must be inserted into the associated holes. Similarly, in order to assemble the cover actuating lever to the device below the ice cube outlet, the receiving elements of the supporting member must be attached to the inner wall of the access opening, the hinge shafts of the cover actuating lever must be inserted into the respective elements by screws. Thus, the assembly process is complex which is to a large extend due to the relatively large number of components and their complicated construction. Due to its complexity, the conventional cover device as illustrated in Figure 1 takes a relatively long time to assemble and the associated manufacturing costs are high. A cover assembly for an ice cube outlet of a refrigerator according to the present invention is characterised in that the spring support bar extends laterally from one hinge shaft support member and terminates short of the other hinge shaft support member such that a spring can be slid onto the spring support bar between the hinge shaft support members, and that the cover member, the hinge shaft support members, the hinge shaft and the spring support bar are integrally formed. In a preferred embodiment, the cover member, the hinge shaft support members, the hinge shaft and the spring support bar are integrally formed. Conveniently, the cover member, the hinge shaft support members, the hinge shaft and the spring support bar are moulded in one piece. Preferably, the hinge shaft support members are deflectable inwardly towards each other when pressure is applied thereto to enable the hinge shafts to be inserted into hinge support means on the refrigerator, the hinge support members resuming their original configuration once the pressure is released. The spring support bar is preferably coaxial with the hinge shafts and conveniently, an end stop is disposed at a distal end of the spring support bar to prevent removal of said spring therefrom. In a preferred embodiment, the actuating lever includes hinge shaft support arms extending therefrom, having a second hinge shaft extending laterally from the free end of each hinge shaft support arm for insertion into second hinge shaft support means on the refrigerator, and a second spring support bar between the hinge shaft support arms to receive an actuating lever spring to bias the actuating lever into a rest position when the cover is closed. In a preferred embodiment, said actuating lever includes pushing bars projecting laterally inwards from an upper portion thereof and a tongue member extending downwardly from the actuating lever such that when a user pushes the tongue portion, the pushing bars push against projections that extend laterally outwards from the lower end of each connecting member of the cover member. Preferably, each hinge shaft support arm includes a slot therein to receive an end of the actuating lever spring. In one embodiment, the second hinge shafts and the second spring support bar are coaxial. In a preferred embodiment the hinge shaft support arms are deflectable inwardly towards each other when pressure is applied thereto to enable the second hinge shafts to be inserted into second hinge shaft support means on the refrigerator, the hinge support arms resuming their original configuration once the pressure is released. Preferably, the actuating lever, the hinge shaft support arms, the second hinge shaft and the second spring support bar are integrally formed. Preferably, an end stop is disposed at a distal end of the spring support bar to prevent removal of the cover spring therefrom. According to the invention, there is also provided a method of assembling a cover assembly for an ice cube outlet of a refrigerator, the actuating lever of which including hinge shaft support arms extending therefrom, having a second hinge shaft extending laterally from the free end of each hinge shaft support arm for insertion into second hinge shaft support means on the refrigerator, and a second spring support bar between the hinge shaft support arms to receive an actuating lever spring to bias the actuating lever into a rest position when the cover is closed, characterised by the steps of placing a spring on the spring support bar, deflecting the hinge shaft support members towards each other such that the hinge shafts clear the hinge support means on the refrigerator, placing the hinge shafts over the hinge support means on the refrigerator, and releasing the hinge support members such that the hinge shafts engage the hinge support means to couple the cover member to the refrigerator, and the steps of placing a lever spring on the second spring support bar, deflecting the second hinge shaft support arms such that the second hinge shafts clear the second hinge shaft support means on the refrigerator and placing the second hinge shafts over the second hinge shaft support means on the refrigerator and releasing the hinge shaft support arms such that the second hinge shafts engage the second hinge shaft support means to couple the actuating lever to the refrigerator. Embodiments of the invention will now be described, by way of example only, with reference to Figures 2 to 7 of the accompanying drawings, in which: Figure 1 is an exploded perspective view of a prior art ice cube outlet cover assembly; Figure 2 is a longitudinal sectional view of a refrigerator in which the cover assembly of the present invention is incorporated; Figure 3 is an exploded perspective view of an ice cube outlet cover assembly according to a preferred embodiment of the invention; Figure 4 is a front view of the cover shown in Figure 3; Figure 5 is a front view of the cover actuating lever shown in Figure 3; Figure 6 is a longitudinal sectional view of an ice cube outlet cover assembly according to a preferred embodiment of the invention, showing the closed state thereof; and Figure 7 is a longitudinal sectional view of an ice cube outlet cover assembly according to a preferred embodiment of the invention, showing the open state thereof. The construction of a freezing compartment of a side-by-side type refrigerator is illustrated in Figure 2. The freezing compartment 11 is formed by partitioning a cabinet 10 into different sections, i.e. right and left sides. A freezing compartment door 12 is mounted to the front of the freezing compartment 11, and an evaporator 13 and a compressor 14 for generating cool air are mounted to the rear wall of the cabinet 10. The refrigerator includes a main ice making device 15, an ice cube storing receptacle or vessel 17 and an ice cube transferring device 23 in an upper portion of the freezing compartment 11, and a spare ice making device 16 and an ice cube storing receptacle or vessel 18 in a middle portion of the freezing compartment 11. Water tubes 19 are connected to the ice making devices 15,16 to directly feed water to the devices 15 and 16 from an external water supply source (not shown). Shelves 20 and freezer boxes 21 are also provided for storing frozen foods in the freezing compartment 11. An ice cube outlet 22 is provided in the freezing compartment door that communicates with the freezing compartment 11 to form a discharge passage for ice cubes so that ice cubes can be dispensed from the ice cube storing receptacle or vessel 17 even when the door 12 is closed. An access opening 25 for receiving the ice cubes discharged from the ice cube outlet 22 is provided on the outside of the door 12 and an ice cube outlet cover assembly 30 for opening and closing the ice cube outlet 22 is mounted in the access opening 25. As indicated in Figures 3 and 4, the ice cube outlet cover assembly 30 includes a cover 40 which is rotatably mounted around the ice cube outlet 22, a cover actuating lever 50 to enable the cover 40 to be rotated to open and close the ice cube outlet 22, and a guide member 60 which is mounted at the front of the cover actuating lever 50 to guide the discharged ice cubes to a receptacle (e.g. glass or cup) held by a user beneath the outlet 22. The cover 40 includes a circular cover portion 48 that covers the ice cube outlet 22, and a hinge portion 49 for hingedly mounting the cover portion 48 including a pair of connecting members 41 extending upwardly from the sides of the cover portion 48, a pair of cover hinge shafts 42 extending laterally from the upper ends of each connecting member 41 respectively, a spring support bar 44 extending inwardly from one of the connecting members 41 (and shown extending from the left side connecting member 41 in Figures 3 and 4) and a cover spring 45 received on the spring support bar 44 to provide a biasing or restoring force to the cover portion 48. A projection 46 extends laterally outward from the lower end of each connecting member 41 that cooperates with the cover actuating lever 50 so that operation of the cover actuating lever 50 causes the cover 40 to swing open, the bias provided by the spring 45 urging the cover to its original closed position when the pressure applied to the actuating lever 50 is removed. A pair of upper shaft support members 43 are provided above the ice cube outlet 22 to rotatably support the cover hinge shafts 42 and are spaced from each other and integrally formed with an inner wall 25a of the access opening 25. Each support member 43 includes a hole 43a to receive the cover hinge shaft 42 therein. The spring support bar 44 extends from one (the left one in Figures 3 and 4) of the connecting members 41, towards the other connecting member 41 but stops short of the other (right) connecting member 41 so that a space or gap is formed between the support bar 44 and the connecting member 41. This enables the cover spring 45 to be easily placed over the spring support bar 44. A retaining element or end stop 44a is provided on the end portion of the spring support bar 44 to prevent the cover spring 45 from sliding off the spring support bar 44. When the cover spring 45 is mounted on the spring support bar 44, one end of the cover spring 45 is supported on the inner wall 25a of the access opening 25 and its other end is supported on the outer surface of the cover 40 (as shown in Figure 6), so as to exert a biasing force on the cover 40. The cover 40, except for the cover spring 45, can be made as a unitary, integral member by injection molding from a resilient or flexible material having a suitable strength, such as ABS resin. The connecting members 41 can then be bent easily or deflected inwardly so that the cover hinge shafts 42 can be inserted into the hinge holes 43a of the shaft support members 43 and secured therein once the connecting members 41 are released. The shaft support members 43 can be also made integrally with the inner wall 25a of the access opening 25 by injection moulding. The assembly of the cover 40 is now simplified. The cover spring 45 is placed over the spring support bar 44; the connecting members 41 are pressed or deflected inwardly, as indicated by the dashed lines in Figure 4 so that the cover hinge shafts 42 may be inserted into the hinge holes 43a of the respective shaft support members 43. With these simple steps, the cover 40 is mounted to the inner wall 25a of the access opening 25. The cover actuating lever 50 for opening the cover 40 includes semicircular actuating member 51 which surrounds the periphery of the cover 40 once assembled, a user operated tongue member 52 extending downwardly from the actuating member 51, and hinge members 53 provided on both sides of the actuating member 51, including a lever hinge shaft 53a which projects laterally outward from the surface of the associated member 53 and a spring supporting bar 53b which projects laterally inward from the inner surface of the member 53. Below the ice cube outlet 22, shaft support members 54 are disposed in spaced relation to each other so as to rotatably support a respective lever hinge shaft 53a. Lever springs 57 are mounted on respective spring supporting bars 53b to exert a biasing force on the cover actuating lever 50. One end of the lever spring 57 is inserted into a slot 58 formed on the associated hinge member 53 as shown in Figure 3, while the other end of the lever spring 57 is supported on the inner wall 25a of the access opening 25, as shown in Figure 6. At an upper portion of the actuating member 51, pushing bars 55 project laterally inward and contact the projections 46 of the connecting members 41 and push them forward to open the cover 40, when the tongue member 52 of the lever 50 is depressed or pushed. Fixing bars 56 project outwardly from the actuating member 51 to provide rotatable support for a guide member 60 disposed on the front of the cover actuating lever 50. As in the case of the cover 40, the cover actuating lever 50, except for the springs 57, can be made as an integral unitary member using injection moulding from a resilient or flexible material of a suitable strength, such as ABS resin, so that the hinge members 53 can be easily bent or deflected inwardly and the lever hinge shafts 53a can be readily inserted into the hinge holes 54a of the shaft supporting members 54 and retained therein when the hinge members 53 are released. The shaft support members 54 can also be formed integrally with the inner wall 25a of the access opening 25 using injection moulding. Assembly of the cover actuating lever 50 is now simplified. The lever springs 57 are fitted on the respective spring support bars 53b, the pair of the hinge members 53 are passed or deflected inwardly as shown in dashed line in Figure 5, and the lever hinge shafts 53 are inserted into the hinge holes 54a of the respective shaft support members 54. Thus, the cover actuating lever 50 can be readily mounted to the inner wall 25a of the access opening 25. The operation of the ice cube outlet cover assembly will now be described with reference to Figures 6 and 7. As shown in Figure 6, when no pressure is applied to the tongue portion or member 52 of the cover actuating lever 50, the cover 40 is maintained in the closed state to close the ice cube outlet 22 by the biasing force of the cover spring 45. When a user pushes the tongue member 52 inwardly, the cover actuating lever 50 pivots around the lever hinge shafts 53 with attendant compression of the lever spring 57, as shown in Figure 7. By virtue of this pivoting of the cover actuating lever 50, the pushing bars 55 push against the projections 46 on the connecting members pushing them forwardly and causing the cover 40 to pivot or rotate around the cover hinge shafts 42 (see Figure 3), with compression of the cover spring 45, thereby opening the ice cube outlet 22. At the same time, the tongue member 52 of the lever 50 depresses and actuates the operating switch 27 mounted to the inner wall 25a of the access opening 25 to actuate the ice cube transferring device 23 in the freezing compartment 11 to transfer ice cubes to the ice cube outlet 22. After the receptacle has been filled with the required amount of ice cubes, the user releases tongue member 52 to terminate operation of the ice cube transferring device 23 and return the cover 50 to its original position due to the biasing force of the cover spring 45. At the same time, the cover actuating lever 50 is returned to its original position due to the biasing force of the lever springs 57. As set forth in more detail hereinabove, in the ice cube outlet cover assembly according to the invention, the connecting members and hinge members, which are components or elements of the cover and cover actuating lever, respectively, are made of a flexible material so as to be readily bent and straightened. Accordingly, the hinge shafts can be easily fitted in the hinge holes of the shaft support members formed on the inner wall of the access opening and, therefore, the installation of the cover and cover actuating lever can be readily carried out. Furthermore, because the cover and cover actuating lever can be made using conventional injection molding techniques and the shaft supporting members can also be made by such injection moulding, along with the inner wall of the access opening, the assembly time and manufacturing costs associated with the ice cube outlet cover assembly of the invention are substantially reduced.

Claims: A cover assembly for an ice cube outlet of a refrigerator including a cover member (40) having a pair of spaced hinge shaft support members (41) extending therefrom, a hinge shaft (42) extending laterally from the free end of each of the hinge shaft support members (40) for insertion into hinge support means (43) on the refrigerator, and a spring support bar (44) between the hinge shaft support members (41) to receive a spring (45) to bias the cover (40) against the outlet, and a cover actuating lever (50) for moving the cover (40) between an open position and a closed position in which the cover (40) is biased against the outlet characterised in that the spring support bar (44) extends laterally from one hinge shaft support member (41) and terminates short of the other hinge shaft support members (41) such that a spring (45) can be slid onto the spring support bar (44) between the hinge shaft support members (41) and that the cover member (40), the hinge shaft support members (41), the hinge shaft (42) and the spring support bar (44) are integrally formed. A cover assembly according to claim 1 wherein the cover member (40), the hinge shaft support members (41), the hinge shaft (42) and the spring support bar (44) are moulded in one piece. A cover assembly according to claim 1 or claim 2 wherein the hinge shaft support members (41) are deflectable inwardly towards each other when pressure is applied thereto to enable the hinge shafts (42) to be inserted into hinge support means (43) on the refrigerator, the hinge support members (41) resuming their original configuration once the pressure is released. A cover assembly according to any preceding claim wherein the spring support bar (44) is coaxial with the hinge shafts (42). A cover assembly according to any preceding claim wherein an end stop (44a) is disposed at a distal end of the spring support bar (44) to prevent removal of said spring (45) therefrom. A cover assembly according to any preceding claim wherein the actuating lever (50) includes hinge shaft support arms (53) extending therefrom, having a second hinge shaft (53a) extending laterally from the free end of each hinge shaft support arm (53) for insertion into second hinge shaft support means (54) on the refrigerator, and a second spring support bar (53b) between the hinge shaft support arms (53) to receive an actuating lever spring (57) to bias the actuating lever (50) into a rest position when the cover (40) is closed. A cover assembly according to claim 6 wherein said actuating lever (50) includes pushing bars (55) projecting laterally inwards from an upper portion thereof and a tongue member (52) extending downwardly from the actuating lever (50) such that when a user pushes the tongue portion (52), the pushing bars (55) push against projections (46) that extend laterally outwards from the lower end of each connecting member (46) of the cover member (40). A cover assembly according to claim 7 wherein each hinge shaft support arm (53) includes a slot (58) therein to receive an end of the actuating lever spring (57). A cover assembly according to claim 7 or 8 wherein the second hinge shafts (53a) and the second spring support bar (53) are coaxial. A cover assembly according to any of claims 7 to 9 wherein the hinge shaft support arms (53) are deflectable inwardly towards each other when pressure is applied thereto to enable the second hinge shafts (53a) to be inserted into second hinge shaft support means (54) on the refrigerator, the hinge support arms (53) resuming their original configuration once the pressure is released. A cover assembly according to any of claims 7 to 10 wherein the actuating lever (50), the hinge shaft support arms (53), the second hinge shaft (53a) and the second spring support bar (53b) are integrally formed. A method of assembling a cover assembly for an ice cube outlet of a refrigerator including a cover member (40) having a pair of spaced hinge shaft support members (41) extending therefrom, a hinge shaft (42) extending laterally from the free end of each of the hinge shaft support members (41) for insertion into hinge support means (43) on the refrigerator, and a spring support bar (44) between the hinge shaft support members (41) to receive a spring (45) to bias the cover (40) against the outlet and a cover actuating lever (50) for moving the cover (40) between an open position and a closed position in which the cover (40) is biased against the outlet, the actuating lever (50) including hinge shaft support arms (53) extending therefrom, having a second hinge shaft (53a) extending laterally from the free end of each hinge shaft support arms (53) for insertion into second hinge shaft support means (54) on the refrigerator, and a second spring support bar (53b) between the hinge shaft support arms (53) to receive an actuating lever spring (57) to bias the actuating lever (50) into a rest position when the cover (40) is closed characterised by the steps of placing a spring (45) on the spring support bar (44), deflecting the hinge shaft support members (41) towards each other such that the hinge shafts (42) clear the hinge support means (43) on the refrigerator, placing the hinge shafts (42) over the hinge support means (43) on the refrigerator, and releasing the hinge support members (41) such that the hinge shafts (42) engage the hinge support means (43) to couple the cover member (40) to the refrigerator and the steps of placing a lever spring (57) on the second spring support bar (53b), deflecting the second hinge shaft support arms (53) such that the second hinge shafts (53a) clear the second hinge shaft support means (54) on the refrigerator and placing the second hinge shafts (53a) over the second hinge shaft support means (54) on the refrigerator and releasing the hinge shaft support arms (53) such that the second hinge shafts (53a) engage the second hinge shaft support means (54) to couple the actuating lever (50) to the refrigerator.

Inventors: SHIN DONG-IN, SHIN, DONG-IN
Applicants: SAMSUNG ELECTRONICS CO LTD, SAMSUNG ELECTRONICS CO., LTD.
Application year: 2000
Main classification: F25C5
IPC codes: F25C5