JP2010286186A - Crusher mechanism for ice supply device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent mixing of crushed ice into non-crushed ice, when the supply of non-crushed ice is required. <P>SOLUTION: This crusher mechanism for an ice supply device includes an ice conveying body 7 for conveying the non-crushed ice through the forward rotation of an output shaft 10, a rotary blade 5 for crushing the non-crushed ice through the forward rotation of an input shaft 9, a first one-way clutch 110 for rotating a second gear together with the forward rotation of the first gear when the input shaft 9 is rotated forward, and not rotating the second gear when the first gear is rotated backward through the backward rotation of the input shaft 9, and a second one-way clutch 111 having a third gear engaged with the first gear of the first one-way clutch 110, and a forth gear interlocked with the second gear of the first one-way clutch 110 through an intermediate gear, rotating the forth gear together with the forward rotation of the third gear through the backward rotation of the first gear, and not rotating the forth gear when the third gear is rotated backward through the forward rotation of the first gear. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an improvement of a mechanism for converting crushed ice into non-crushed ice that is arranged between an ice making mechanism and an ice discharge section in an ice supply device and is generated by the ice making mechanism and conveyed toward the ice discharge section. .

  Some refrigerators and ice makers are equipped with an ice supply device having a function of providing ice produced by an ice making mechanism, typically ice cubes, as finely crushed ice. In such an apparatus, a crusher mechanism is provided between the ice making mechanism and the ice discharging unit so as to generate ice crushed more finely from the square ice.

  The typical structural example of the crusher mechanism concerning FIG. 6 is shown. Reference numeral 200 in the figure denotes a storage chamber for ice cubes, and ice cubes generated by an ice making mechanism (not shown) are supplied to the storage chamber 200 as needed and stored. A crushing chamber 203 is adjacent to the storage chamber 200 through a partition wall denoted by reference numeral 201 in the drawing. The partition wall 201 is provided with a communication opening 202 through which ice cubes stored in the storage chamber 200 are fed into the crushing chamber 203. In the crushing chamber 203, a rotary blade 205 provided on the drive shaft 204 and a fixed blade 206 cooperating therewith are arranged. On the other hand, the storage chamber 200 is provided with an ice carrier 207 that feeds the ice cubes in the storage chamber 200 to the crushing chamber 203 through the communication opening 202 by the rotation of the drive shaft 204. The crushing chamber 203 is provided with a cover 208 that can be moved from a closed position in which the inner surface 208a of the cover 208 is brought close to the movement locus of the free end 205a of the rotary blade 205 to an open position in which the inner surface 208a is separated. It has been. An ice discharge part 203a is formed in the lower part of the crushing chamber 203. When the cover 208 is in a closed position, a part of the ice discharge part 203a is fed to the ice cubes that have been fed through the communication opening 202 and the action of the rotary blade 205 is applied. It is structured so that it will not fall outside without being exposed to light.

  When the ice supply device is operated, that is, when the drive shaft 204 is rotated, the ice cubes are continuously fed from the storage chamber 200 to the crushing chamber 203. The fed ice cubes are moved to the right side in FIG. 6 by the rotary blade 205 and crushed with the fixed blade 206. The cover 208 in the closed position guides the fed ice cube so that it does not escape from the position where it receives the action of the rotary blade 205. When the cover 208 is moved to the open position (position indicated by an imaginary line in FIG. 6), the ice cubes fed from the communication opening 202 can be dropped without receiving the action of the rotary blade 205. As a result, the ice cubes stored in the storage chamber 200 can be discharged outside without being crushed.

  However, in this conventional crusher mechanism, even if the cover 208 is moved to the open position, it is not possible to completely prevent the ice cubes from entering the position that receives the action of the rotary blade 205. In some cases, ice may be supplied at the same time.

  The main problem to be solved by the present invention is that when this type of ice supply device requires the supply of non-crushed ice (typically the above-mentioned ice cubes), crushed ice is mixed with this. It is in the point which prevents the situation which it ends.

In order to achieve the above object, according to the present invention, the crusher mechanism of the ice supply device has the following configurations (1) to (6).
(1) A crusher mechanism that is between an ice making mechanism and an ice discharge unit in an ice supply device, and makes non-crushed ice generated by the ice making mechanism crushed ice,
(2) an ice carrier that is in a non-crushed ice storage chamber supplied from an ice making mechanism and that rotates forward by forward rotation of the output shaft to send the non-crushed ice in the storage chamber to the crushing chamber;
(3) A rotating blade configured to crush the non-crushed ice in the crushing chamber that is rotated forward by the normal rotation of the input shaft and fed into the crushing chamber, and not to cause crushing at the time of reverse rotation;
(4) a transmission unit that transmits the rotational force of the input shaft to the output shaft;
(5) The transmission unit includes a first gear connected to the input shaft and a second gear connected to the output shaft. When the first gear rotates normally by the normal rotation of the input shaft, the second gear is A first one-way clutch that does not rotate the second gear when the first gear reverses due to reverse rotation of the input shaft;
(6) having a third gear meshing with the first gear of the first one-way clutch and a fourth gear linked to the second gear of the first one-way clutch via an intermediate gear; And a second one-way clutch that rotates the fourth gear when the three gears are rotated forward, and does not rotate the fourth gear when the third gear is rotated reversely by the normal rotation of the first gear.

  During normal rotation of the input shaft, both the first gear and the second gear are rotated forward, and the output shaft is rotated forward. At this time, the third gear meshing with the first gear is reversed and the fourth gear is rotated forward via the intermediate gear, but the second one-way clutch is rotated along with the third gear when the third gear is reversed. Since it is the structure which does not carry out, the 2nd one-way clutch does not prevent the output shaft from rotating forward. By the forward rotation of the output shaft, the ice carrier sends out non-crushed ice to the crushing chamber, and the crushing chamber crushes the non-crushed ice with a rotary blade.

  When the input shaft is reversely rotated, the first gear is reversely rotated. However, the first one-way clutch is configured so that the second gear does not rotate with the first gear when the first gear is reversely rotated. That is, it is not transmitted directly to the output shaft. At this time, the third gear meshing with the first gear is rotated forward, and when the third gear is rotated forward, the fourth gear is also rotated forward, so the second gear is rotated forward via the intermediate gear and the output shaft Is rotated forward. As a result, even when the input shaft is reversely rotated, the output shaft is rotated forward, and the ice carrier sends out non-crushed ice to the crushing chamber. At this time, since the rotary blade is reversed in the crushing chamber, the non-crushed ice sent to the crushing chamber is discharged outside from the ice discharge section without being crushed.

  The transmission unit is further provided so as to be able to rotate between a closed position and an open position, covers a part of the ice discharge unit at the closed position, and crushes non-crushed ice fed into the crushing chamber by a rotary blade. And a link limiter connected to the third gear of the second one-way clutch, and the torque limiter when the third gear is reversed. The cover may be positioned at the closed position via the cover, and the cover may be rotated and positioned via the torque limiter when the third gear is rotated forward.

  In this case, while the cover is operated by the rotation of the input shaft, the state where the cover is in the closed position and the open position can be maintained without causing a load on the mechanism.

  According to the present invention, when the supply of non-crushed ice is required, the output shaft can be rotated forward while the input shaft is reversed by the transmission unit, and the rotating blade is rotated in the crushing chamber when the input shaft is reversed. Therefore, the non-crushed ice in the storage chamber can be supplied to the outside through the crushing chamber without mixing the crushed ice.

FIG. 1 is a perspective view of a principal part of a crusher mechanism, showing an operating state when crushed ice is generated by crushing non-crushed ice. FIG. 2 is a perspective view of a principal part of the crusher mechanism, and shows an operation state when the non-crushed ice is sent to the outside without being crushed. FIG. 3 is a perspective configuration diagram showing the main configuration of the transmission unit in the state of FIG. 1 as viewed from the storage chamber side. FIG. 4 is a perspective configuration diagram showing the main configuration of the transmission unit in the state of FIG. 2 as viewed from the storage chamber side. FIG. 5 is a perspective view of the torque limiter. FIG. 6 is a perspective view of a main part of a conventional crusher mechanism.

  Hereinafter, typical embodiments of the present invention will be described with reference to FIGS. The crusher mechanism according to this embodiment is arranged between an ice making mechanism and an ice discharge unit 3a in an ice supply device (dispenser), and is generated by the ice making mechanism and conveyed toward the ice discharge unit 3a. The crushed ice is made into crushed ice.

  Typically, such a crusher mechanism is provided in a refrigerator or ice making machine provided with the ice supply device. When the ice supply device for the refrigerator is provided, the ice supply device is typically provided in front of the refrigerator door, and the ice supply device can supply crushed ice or non-crushed ice to the outside without opening the door. The Typically, a placement unit such as a container for receiving supplied ice is formed below the ice discharge unit 3a. In this case, ice falls from the ice discharge part 3a arranged above the placing part and is supplied to the container.

  Typically, non-crushed ice is produced as ice cubes in an ice making mechanism. The crusher mechanism has an ice carrier 7 that conveys the non-crushed ice from the storage chamber 1 to the crushing chamber 3. Due to the function of the transmission unit 11 to be described later, the ice carrier 7 operates so as to carry the non-crushed ice from the storage chamber 1 to the crushing chamber 3 even when the input shaft 9 rotates forward or backward. On the other hand, the crushing chamber 3 is provided with a rotary blade 5 configured to crush the non-crushed ice transported in this way when the input shaft 9 is rotated forward, but not to crush the input shaft 9 when the input shaft 9 is reversed. ing. Thereby, when the input shaft 9 rotates forward, the crushed ice is continuously discharged from the ice discharge portion 3a, and when the input shaft 9 rotates reversely, the non-crushed ice is continuously discharged from the ice discharge portion 3a. Therefore, in a non-operating state in which the input shaft 9 is not driven, the ice discharge from the ice discharge unit 3a is stopped.

  In the illustrated example, the crusher mechanism includes a transmission unit 11 that transmits the rotational force of the input shaft 9 to the output shaft 10 between the input shaft 9 and the output shaft 10 that are disposed sideways. The input shaft 9 and the output shaft 10 are arranged so that one virtual straight line x passes through the center of the input shaft 9 and passes through the center of the output shaft 10. The input shaft 9 is provided with a rotary blade 5, and the output shaft 10 is provided with an ice carrier 7. In the illustrated example, the storage chamber 1 and the crushing chamber 3 are separated by a vertically oriented partition wall 2. In the illustrated example, the transmission unit 11, the output shaft 10, and the input shaft 9 are combined into a unit, and the output shaft 10 is arranged in the storage chamber 1 by providing this unit to the partition wall 2, so that the input shaft 9 is arranged in the crushing chamber 3. A communication opening 2 a with the crushing chamber 3 is formed in the lower part of the partition wall 2. The communication opening 2a is formed on one side (left side in FIG. 1) across a virtual vertical line y passing through the input shaft 9. Non-crushed ice generated by an ice making mechanism (not shown) is fed into the storage chamber 1 from above, and the non-crushed ice received in the storage chamber 1 is crushed by the ice carrier 7 through the communication opening 2 a by the forward rotation of the output shaft 10. It is sent to chamber 3. In the lower part of the crushing chamber 3, an open part serving as the ice discharge part 3a is formed. Reference numeral 9 a in the drawing is a connection portion for an output portion of a motor (not shown) provided at one end portion of the input shaft 9. By controlling the drive of the motor, the output shaft 10 can be rotated forward or backward. On the other hand, the input shaft 9 is always normally rotated by the transmission portion 11 when the motor is driven.

  The ice carrier 7 is configured to send the non-crushed ice in the storage chamber 1 to the crushing chamber 3 by forward rotation of the output shaft 10. In the illustrated example, the ice carrier 7 includes a screw-like portion 7a that goes around the central axis connected to the output shaft 10 in a range of about 180 degrees. Then, the non-crushed ice that has entered between the screw-like portion 7a and the partition wall 2 is pushed laterally on the surface of the screw-like portion 7a facing the partition wall 2 by the forward rotation of the output shaft 10, and through the communication opening 2a. It feeds into the crushing chamber 3.

  The rotary blade 5 is configured so as to crush the non-crushed ice that is normally rotated by the normal rotation of the input shaft 9 and is fed into the crushing chamber 3, and does not cause this crushing during the reverse rotation. In the illustrated example, the rotary blade 5 is configured to have a long plate shape with one end fixed to the input shaft 9 and extending in a direction perpendicular to the input shaft 9. A plate edge portion positioned forward of the rotary blade 5 in the forward direction is a blade portion 5b formed so as to have a wave shape. The plate edge portion opposite to the blade portion 5b is a back portion that is not configured as described above. In the illustrated example, a fixed blade (not shown) is disposed on the other side (right side in FIG. 1) across the vertical line y in the crushing chamber 3, and non-crushed ice fed from the communication opening 2a. Is moved to the right side in FIG. 1 by the blade portion 5b of the rotary blade 5 that rotates forward (clockwise in FIG. 1) and is crushed so as to be sandwiched between the rotary blade 5 and the fixed blade. It has become. When the rotary blade 5 is reversed (counterclockwise direction in FIG. 1), the rotary blade 5 does not guide the non-crushed ice fed from the communication opening 2a to the side sandwiched with the fixed blade, and the non-crushed ice is crushed. It falls without being sent out and is sent out downward from the ice discharge part 3a. In the illustrated example, the ice discharger 3a is covered by a cover 8 (described later) during normal rotation of the input shaft 9 so that a portion of the ice discharge unit 3a is covered so as not to pass non-crushed ice. (FIG. 1) When the input shaft 9 is rotated forward, the inner surface 8a of the cover 8 is positioned near the other end of the rotary blade 5, that is, in the vicinity of the movement locus of the free end 5a, and is sent from the communication opening 2a. Is guided on the blade portion 5b of the rotary blade 5. On the other hand, when the input shaft 9 is rotated in the reverse direction, the cover 8 is rotated to the open position so as not to prevent the non-crushed ice from being delivered from the ice discharge portion 3a. (FIG. 2) In FIGS. 1 to 4, the arrow indicating normal rotation is indicated by a solid line, and the arrow indicating reverse rotation is indicated by a broken line.

  The transmission unit 11 transmits the rotational force of the input shaft 9, that is, the driving force of the motor, to the output shaft 10 so that the output shaft 10 rotates forward even when the input shaft 9 rotates in either forward or reverse direction. It has a configuration.

The transmission unit 11 includes a first gear 110 a connected to the input shaft 9 and a second gear 110 b connected to the output shaft 10, and when the first gear 110 a rotates normally by the normal rotation of the input shaft 9. A first one-way clutch 110 that rotates the second gear 110b and does not rotate the second gear 110b when the first gear 110a rotates in reverse by the reverse rotation of the input shaft 9,
A third gear 111a that meshes with the first gear 110a of the first one-way clutch 110; and a fourth gear 111b that is linked to the second gear 110b of the first one-way clutch 110 via the intermediate gear 112. When the third gear 111a is rotated forward by the reverse rotation of 110a, the fourth gear 111b is rotated, and when the third gear 111a is rotated reversely by the normal rotation of the first gear 110a, the fourth gear 111b is not rotated. And a second one-way clutch 111.

  In the illustrated example, the rotation axes of the gears 110a, 110b, 111a, and 111b are all horizontal and parallel to each other. Further, in the illustrated example, the first one-way clutch 110 includes an outer ring body 110a 'and an inner ring body 110b' combined so as to have the same rotation center. Between the outer ring body 110a ′ and the inner ring body 110b ′, there is typically provided a linkage member (not shown) that connects the outer ring body 110a ′ when the outer ring body 110a ′ rotates in the forward direction and releases the connection when the outer ring body 110a ′ rotates in the reverse direction. . The outer ring body 110a 'constitutes the first gear 110a, and the second gear 110b is provided outside the inner ring body 110b'. The shaft end of the input shaft 9 is fixed to the rotation center position of the first gear 110a on the outer surface side of the first gear 110a (the side not facing the partition wall 2). The second gear 110b has a smaller diameter than the first gear 110a and is provided so as to protrude from the inner surface of the first gear 110a. The output shaft 10 is provided so as to protrude from the rotation center position of the second gear 110b.

  In the illustrated example, the second one-way clutch 111 also includes an outer ring body 111 a ′ and an inner ring body 111 b ′ combined so as to have the same rotation center. Between the outer ring body 111a ′ and the inner ring body 111b ′, there is typically provided a linkage member (not shown) that connects the outer ring body 111a ′ when the outer ring body 111a ′ rotates in the forward direction and releases this connection when the outer ring body 111a ′ rotates in the reverse direction. . The outer ring body 111a 'constitutes the third gear 111a, and the fourth gear 111b is provided outside the inner ring body 111b'. The fourth gear 111b has a smaller diameter than the third gear 111a and is provided so as to protrude from the inner surface of the third gear 111a. An intermediate gear 112 that meshes with both gears 110b and 111b is rotatably supported between the second gear 110b and the fourth gear 111b on the unit box 12 that constitutes the unit. (FIG. 3) The first gear 110a and the third gear 111a are also supported by the unit box 12 so as to mesh with each other.

  When the input shaft 9 is rotated forward, both the first gear 110a and the second gear 110b are rotated forward, and the output shaft 10 is rotated forward. At this time, the third gear 111a meshing with the first gear 110a is rotated reversely, and the fourth gear 111b is rotated forward via the intermediate gear 112, while the second one-way clutch 111 is rotated when the third gear 111a is rotated reversely. In addition, since the fourth gear 111b does not rotate, the second one-way clutch 111 does not prevent the output shaft 10 from rotating forward. By the normal rotation of the output shaft 10, the ice carrier 7 sends out non-crushed ice to the crushing chamber 3, and the crushing chamber 3 crushes the non-crushed ice by the rotary blade 5. (Fig. 1, Fig. 3)

  The first gear 110a is rotated in the reverse direction of the input shaft 9, but the first one-way clutch 110 is configured so that the second gear 110b does not rotate with the first gear 110a in the reverse rotation of the first gear 110a. Is not directly transmitted to the second gear 110 b, that is, the output shaft 10. At this time, the third gear 111a meshing with the first gear 110a is rotated forward, and when the third gear 111a is rotated forward, the fourth gear 111b is also rotated forward, so that the second gear 110b is interposed via the intermediate gear 112. Is rotated forward and the output shaft 10 is rotated forward. As a result, even when the input shaft 9 rotates in the reverse direction, the output shaft 10 rotates in the forward direction, and the ice carrier 7 sends out uncrushed ice to the crushing chamber 3. At this time, since the rotary blade 5 is reversed in the crushing chamber 3, the non-crushed ice fed into the crushing chamber 3 is discharged outside from the ice discharge part 3a without being crushed. (Fig. 2, Fig. 4)

  That is, according to the crash mechanism according to this embodiment, when crushed ice is required, the input shaft 9 is driven to rotate forward so that the crushed ice is sent from the storage chamber 1 to the crushing chamber 3 while being crushed in the crushing chamber 3. Ice can be generated and sent out continuously. On the other hand, when non-crushed ice is required, the input shaft 9 is driven in reverse to send non-crushed ice from the storage chamber 1 to the crushing chamber 3, but the crushing chamber 3 continuously feeds it outside without crushing it. be able to.

  In this embodiment, the transmission unit 11 is provided so as to be able to rotate between a closed position and an open position, and the crushed ice is discharged from the ice discharging unit 3a at the closed position, but non-crushed ice. The cover 8 is connected to the cover 8 so as to cover the non-crushed ice fed into the crushing chamber 3 to a position where it is crushed by the rotary blade 5.

  In the illustrated example, the cover 8 is rotatably supported in the crushing chamber 3. A rotation shaft 8 b of the cover 8 is parallel to the input shaft 9. The rotation shaft 8b is provided at the center of the cover side gear body 8c. The cover side gear body 8c is integrally connected to the upper portion of the cover 8 with a connecting arm 8e. In the closed position, the cover 8 is formed by forming a hanging plate portion 8f extending in the vertical direction from the upper portion and a bending portion with the inner side of the crushing chamber 3 being curved inside between the hanging plate portion 8f. 1 is provided with a lower plate portion 8g extending to the right side. In the closed position, the lower plate portion 8g of the cover 8 covers the ice discharge portion 3a from the left side in FIG. 1 to a position directly below the communication opening 2a. At this time, the inner surface 8a of the cover 8 is close to the movement locus of the free end 5a of the rotary blade 5 so that the non-crushed ice does not escape from between the two. When the rotary blade 5 is rotated forward, the non-crushed ice fed from the communication opening 2a is moved to the right side across the input shaft 9 by the rotary blade 5, where it is crushed in cooperation with the fixed blade and is in the closed position. From the right side of the ice discharge part 3a not covered by the crushed ice, it falls to the outside as crushed ice. On the other hand, the cover 8 is rotated from the closed position to the open position (FIG. 2) in the clockwise direction in FIG. 1 by the forward rotation of the rotation shaft of the cover 8, and in this open position, the ice discharge section is formed by the lower plate portion 8g. 3a is not covered. At this time, the inner surface 8a of the cover 8 is separated from the movement trajectory of the free end 5a of the rotary blade 5 so as to release the non-crushed ice downward between the two. When the rotary blade 5 is reversely rotated, the non-crushed ice fed from the communication opening 2a is not hindered by the reverse rotation of the rotary blade 5 even if it rides on the rotary blade 5, and is in a fully open state without being crushed. It is dropped from the ice discharge part 3a to the outside.

  In the illustrated example, the rotation of the cover 8 between the closed position and the open position is performed by the linking means 113 by the rotational force of the input shaft 9. In the illustrated example, stopper units 12a and 12b that abut on the abutment portion 8d provided on the cover-side gear body 8c of the cover 8 at the closed position and the open position of the cover 8 are provided in the unit box 12. Is provided outside. (Figure 2)

  The linking means 113 includes a torque limiter 113a connected to the third gear 111a of the second one-way clutch 111, and a linking gear 113g between the torque limiter 113a and the cover-side gear body 8c and meshed with each other. Has been. When the third gear 111a is reversely rotated, the cover 8 is positioned at the closed position via the torque limiter 113a, and when the third gear 111a is normally rotated, the cover 8 is opened via the torque limiter 113a. It is rotated and positioned to the position.

  When the input shaft 9 is rotated forward, the third gear 111a is reversed and the torque limiter 113a is also reversed, so that the cover side gear body 8c is reversed via the linkage gear 113g and the cover 8 is provided with the stopper portion 12a on the left side of FIG. The abutting portion 8d is brought into contact with and is positioned at the closed position. As long as the input shaft 9 is rotated in the forward direction, the third gear 111a is continuously rotated in the reverse direction, but the rotation of the linkage gear 113g is prevented after the cover 8 reaches the closed position. The state where 8 is in the closed position is maintained without causing a load on the mechanism.

  Further, when the input shaft 9 is rotated in the reverse direction, the third gear 111a is rotated in the normal direction and the torque limiter 113a is also rotated in the normal direction. Therefore, the cover side gear body 8c is rotated in the normal direction via the linkage gear 113g, and the cover 8 is in the right side of FIG. The contact portion 8d is brought into contact with the stopper portion 12b and is positioned at the open position. As long as the input shaft 9 is reversely rotated, the third gear 111a continues to rotate forward, but the rotation of the linkage gear 113g is prevented after the cover 8 reaches the open position. The state where 8 is in the open position is maintained without causing a load on the mechanism.

  In the illustrated example, the torque limiter 113a includes a shaft body 113b, a pinion 113c, and a pressing ring 113f. One end of the shaft body 113b is fixed to the rotation center position of the third gear 111a on the outer surface side of the third gear 111a. The other end of the shaft body 113b is housed in a bearing boss portion 113d formed on one surface side of the pinion 113c. The bearing boss portion 113d is divided by a split groove 113e extending from the protruding end to the base portion, and the holding ring 113f is fitted to the outside of the bearing boss portion 113d from the state in which the other end of the shaft body 113b is stored in the bearing boss portion 113d. By attaching, the inner diameter of the bearing boss portion 113d is reduced, and a certain frictional resistance is generated between the inner surface of the bearing boss portion 113d and the outer surface of the shaft body 113b. When a torque exceeding the frictional resistance is applied, the shaft body 113b is idled in the bearing boss portion 113d, thereby maintaining the state where the cover 8 is in the closed position and the open position while continuing the rotation of the third gear 111a. It is supposed to be.

5 Rotating blade 7 Ice carrier 9 Input shaft 10 Output shaft 110 First one-way clutch 110a First gear 110b Second gear 111 Second one-way clutch 111a Third gear 111b Fourth gear 112 Intermediate gear

Claims (2)

A crusher mechanism that is located between an ice making mechanism and an ice discharge unit in an ice supply device, and converts non-crushed ice generated by the ice making mechanism into crushed ice,
An ice carrier that is in a non-crushed ice storage chamber supplied from an ice making mechanism and that rotates forward by forward rotation of the output shaft and sends the non-crushed ice in the storage chamber to the crushing chamber;
In this crushing chamber, a rotating blade configured to crush non-crushed ice that has been rotated forward by the normal rotation of the input shaft and sent to the crushing chamber, and not to cause this crushing during reverse rotation,
A transmission section that transmits the rotational force of the input shaft to the output shaft,
The transmission unit has a first gear connected to the input shaft and a second gear connected to the output shaft. When the first gear rotates forward due to normal rotation of the input shaft, the transmission gear rotates together. A first one-way clutch that does not rotate the second gear when the first gear reverses due to the reverse rotation of the input shaft;
A third gear that meshes with the first gear of the first one-way clutch, and a fourth gear that is linked to the second gear of the first one-way clutch via an intermediate gear. And a second one-way clutch that rotates the fourth gear when rotating in the forward direction and does not rotate the fourth gear when the third gear is rotated reversely by the normal rotation of the first gear. The crusher mechanism of the ice supply device. The transmission unit is provided so as to be able to rotate between a closed position and an open position, covers a part of the ice discharge unit in the closed position, and crushes the non-crushed ice fed into the crushing chamber with a rotary blade. Linking means to the cover to guide the position,
The linkage means includes a torque limiter connected to the third gear of the second one-way clutch. When the third gear is reversely rotated, the cover is positioned at the closed position via the torque limiter. 2. The crusher mechanism for an ice supply device according to claim 1, wherein when the gear is rotated forward, the cover is rotated and positioned through the torque limiter to the open position.

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