CN108283444B

CN108283444B - Food processor

Info

Publication number: CN108283444B
Application number: CN201711026150.XA
Authority: CN
Inventors: 王良
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2017-10-27
Filing date: 2017-10-27
Publication date: 2020-03-06
Anticipated expiration: 2037-10-27
Also published as: CN108283444A

Abstract

The application provides a cooking machine, this cooking machine includes host computer, stirring cup subassembly, stirring knife tackle spare and evacuation system. The main machine comprises a motor. The stirring cup component is detachably assembled with the main machine. The stirring knife assembly is positioned in the stirring cup assembly and comprises a knife shaft connected with the motor, and the knife shaft is provided with a linkage mechanism. The vacuumizing system comprises a vacuum pump arranged on the stirring cup assembly, the vacuum pump is connected with a linkage mechanism, and vacuumizing is performed along with rotation of the cutter shaft through the linkage mechanism.

Description

Food processor

Technical Field

The application relates to a small household electrical appliance field especially relates to a cooking machine.

Background

With the increasing living standard of people, many different types of food processors appear on the market. The functions of the food processor mainly include, but are not limited to, functions of making soybean milk, squeezing fruit juice, making rice paste, mincing meat, shaving ice, making coffee and/or blending facial masks and the like. The food processor can comprise a soybean milk machine, a stirrer or a wall breaking food processor and other machines for crushing and stirring food. Some cooking machines can carry out the evacuation to the space in the stirring cup, keep fresh to eating the material. However, the vacuum degree reached in the stirring cup after the vacuum pumping of the existing vacuum pumping system is not low enough, and the fresh-keeping effect cannot be realized.

Disclosure of Invention

The application lies in providing the cooking machine that the vacuum that evacuation reaches is low.

One aspect of the present application provides a food processor. This cooking machine includes: a main machine including a motor; the stirring cup assembly is detachably assembled with the main machine; the stirring knife assembly is positioned in the stirring cup assembly and comprises a knife shaft connected with the motor, and a linkage mechanism is arranged on the knife shaft; and the vacuumizing system comprises a vacuum pump arranged on the stirring cup assembly, the vacuum pump is connected with the linkage mechanism, and vacuumizing is performed along with the rotation of the cutter shaft through the linkage mechanism.

Further, the linkage mechanism includes an eccentric wheel.

Further, the vacuum pump has a connecting rod connected to the eccentric, and the connecting rod is moved by the eccentric in accordance with the rotation of the cutter shaft to evacuate.

Furthermore, the eccentric wheel comprises a bearing outer ring, a bearing inner ring arranged in the bearing outer ring, and an eccentric block arranged in the bearing inner ring, the eccentric block is fastened on the cutter shaft, and the bearing outer ring is fixedly connected with the connecting rod.

Furthermore, an eccentric hole for the cutter shaft to pass through is formed in the eccentric block, and the eccentric hole is an arched through hole.

Further, the link includes at least one segment extending laterally and at least one segment extending longitudinally.

Further, the stirring cup assembly comprises a cup body and a cup seat positioned at the bottom of the cup body, and the vacuum pump is installed in the cup seat.

Further, the inner side wall of the cup base is sunken to form an installation groove, and the vacuum pump is fixedly installed in the installation groove.

Further, the stirring cup subassembly including set up in the handle of cup one side, the bottom card of handle is held in one side of cup, the mounting groove is formed in one side of cup for the handle.

Further, the evacuation system includes a first evacuation conduit coupled to the vacuum pump, the first evacuation conduit extending at least partially within the cup holder.

Furthermore, a step transversely extending along the inner side wall of the cup seat is formed on the inner side wall of the cup seat, and the first air exhaust duct extends on the step.

Furthermore, a limit buckle for limiting the first air exhaust guide pipe is convexly arranged on the inner side wall of the cup seat.

Furthermore, the limit buckle is arranged on the step, and the first air exhaust duct penetrates through the space between the limit buckle and the step.

Further, the blender cup assembly includes a handle disposed on one side of the cup body, and the first suction conduit extends at least partially within the handle.

Further, the cooking machine include detachably install in the bowl cover subassembly of stirring cup subassembly, vacuum pumping system includes the second pipe of bleeding, the second pipe of bleeding is in extend in the bowl cover subassembly, and work as the bowl cover subassembly install in when on the stirring cup subassembly, the second pipe of bleeding with first pipe intercommunication of bleeding.

Further, an upper clutch is installed at the bottom end of the cutter shaft, and the linkage mechanism is located above the upper clutch.

The vacuum pump of the evacuation system of this application cooking machine passes through the link gear and is connected with the arbor, can drive evacuation system work when motor drive arbor, and the power of this motor is big, torsion is big and the rotational speed is fast, can make the evacuation better of vacuum pump, makes the vacuum in the stirring cup subassembly lower, and is fresh-keeping and anti-oxidant better to eating the material.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of a food processor of the present application;

fig. 2 is an exploded perspective view of the food processor shown in fig. 1;

fig. 3 is a longitudinal sectional view of the food processor shown in fig. 1;

fig. 4 is a partially enlarged view of the food processor shown in fig. 3;

FIG. 5 is a perspective view of the blending knife assembly and vacuum-pumping system of the food processor shown in FIG. 1;

FIG. 6 is an exploded perspective view of the blender blade assembly and evacuation system shown in FIG. 5;

FIG. 7 is an exploded perspective view of the evacuation system shown in FIG. 5;

FIG. 8 is a cross-sectional view of the vacuum pump of the evacuation system of FIG. 6 taken along line A-A;

fig. 9 is a partial perspective view of the food processor shown in fig. 1.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The cooking machine of this application embodiment includes host computer, stirring cup subassembly, stirring knife tackle spare and vacuum pumping system. The main machine comprises a motor. The stirring cup component is detachably assembled with the main machine. The stirring knife assembly is positioned in the stirring cup assembly and comprises a knife shaft connected with the motor, and the knife shaft is provided with a linkage mechanism. The vacuumizing system comprises a vacuum pump arranged on the stirring cup assembly, the vacuum pump is connected with a linkage mechanism, and vacuumizing is performed along with rotation of the cutter shaft through the linkage mechanism. The vacuum pump of the evacuation system of this application cooking machine passes through the link gear and is connected with the arbor, can drive evacuation system work when motor drive arbor, and the power of this motor is big, torsion is big and the rotational speed is fast, can make the evacuation better of vacuum pump, makes the vacuum in the stirring cup subassembly lower, and is fresh-keeping and anti-oxidant better to eating the material.

Fig. 1 is a perspective view of an embodiment of a food processor 10. The food processor 10 can be a soymilk machine, a juice extractor, a wall breaking machine, etc. The food processor 10 comprises a main machine 11, a stirring cup assembly 12 and a cup cover assembly 13. The stirring cup assembly 12 is detachably assembled with the main body 11. Lid assembly 13 is removably mounted to blender cup assembly 12. In the illustrated embodiment, the main body 11 is in the form of a stand and the blending cup assembly 12 is removably mounted to the main body 11. In another embodiment, host 11 may be integrated into cap assembly 13.

Fig. 2 is an exploded perspective view of the food processor 10. Fig. 3 shows a longitudinal sectional view of the food processor 10. Referring to fig. 2 and 3, the main body 11 includes a main body housing 20, a motor 21, and a base 22. The base 22 is assembled with the main body case 20, and the motor 21 is installed in the main body case 20 and the base 22. The motor 21 includes a power take-off shaft 23. The host 11 may also include a control circuit board (not shown) mounted within the host housing 20 that may provide power and control signals.

The blending cup assembly 12 includes a cup body 25, a handle 26 disposed on one side of the cup body 25, a cup holder 27 located at the bottom of the cup body 25, and a retaining plate 28 fixedly mounted to the bottom of the cup body 25. The cup 25 may be a circular cup, a square cup, a polygonal cup, or the like. The fixed disk 28 is hermetically assembled with the cup body 25, and the cup body 25 and the fixed disk 28 are assembled together to contain food materials, and the food materials are crushed and stirred in the food materials. The handle 26 may be attached to one side of the cup 25 or integrally formed with one side of the cup 25. A cup holder 27 may be mounted to the bottom of the cup body 25. In the illustrated embodiment, the assembled cooperation of the cup holder 27 and the host 11 allows the blending cup assembly 12 to be mounted to the host 11. In some embodiments, the cup holder 27 and the host 11 may be assembled together by a snap-fit or screwed together by threads.

Lid assembly 13 includes a lid body 30 and a pressure relief lid assembly 31 mounted to lid body 30. The lid body 30 is provided with a central hole 32, and the pressure relief lid assembly 31 is installed in the central hole 32. The pressure relief cover assembly 31 may be used to relieve the pressure in the cavity of the mixing cup assembly 12 under vacuum.

The food processor 10 includes a blender blade assembly 14 located within the blender cup assembly 12. In the illustrated embodiment, the blending knife assembly 14 is mounted to the bottom of the blending cup assembly 12 and is fixedly mounted to the mounting plate 28. In another embodiment, motor 21 is mounted in cap assembly 13 and blender knife assembly 14 extends from cap assembly 13 into blender cup assembly 12.

Fig. 4 is an enlarged view of a partial region 100 of the food processor 10 shown in fig. 3. Referring to fig. 4 in combination, the stirring blade assembly 14 includes a blade shaft 35 connected to the motor 21, and a blade 36 fixedly mounted to a top end of the blade shaft 35. An upper clutch 40 is mounted at the bottom end of the cutter shaft 35, and a lower clutch 41 is mounted at the top end of the power output shaft 23 of the motor 21. When the stirring cup assembly 12 is mounted on the main machine 11, the upper clutch 40 and the lower clutch 41 are in butt joint, and the cutter shaft 35 is connected with the power output shaft 23 of the motor 21 through the upper clutch 40 and the lower clutch 41. The motor 21 drives the cutter shaft 35 to rotate through the power output shaft 23, and drives the blade 36 to rotate, so as to whip the food material.

The food processor 10 further comprises a vacuum pumping system 15 for vacuumizing the cup cavity of the stirring cup assembly 12 to keep food fresh and resist oxidation. Fig. 5 is an assembled perspective view of the vacuum system 15 and the stirring blade assembly 14, and fig. 6 is an exploded perspective view of the vacuum system 15 and the stirring blade assembly 14. Referring to fig. 4-6, the linkage mechanism 16 is mounted on the cutter shaft 35 of the stirring cutter assembly 14, the vacuum pumping system 15 includes a vacuum pump 44 disposed on the stirring cup assembly 12, and the vacuum pump 44 is connected to the linkage mechanism 16 and performs vacuum pumping along with the rotation of the cutter shaft 35 through the linkage mechanism 16. The vacuum pump 44 has a vacuum-pumping moving part 45 connected to the knife shaft 35, and the motor 21 drives the knife shaft 35 to rotate and drives the vacuum-pumping moving part 45 to move for vacuum-pumping. In the illustrated embodiment, the vacuum moving part 45 includes a link. In other embodiments, the vacuum-pumping moving part 45 may be another part, and the vacuum pump 44 performs the vacuum-pumping operation by driving the vacuum-pumping moving part to move.

In the illustrated embodiment, the linkage 16 includes an eccentric, and a connecting rod 45 is connected to the eccentric 16, the connecting rod 45 being vacuumed by the eccentric 16 moving with the rotation of the arbor 35. The power output shaft 23 of the motor 21 (shown in fig. 3) rotates to drive the cutter shaft 35 to rotate, the cutter shaft 35 drives the eccentric wheel 16 to rotate, so that the connecting rod 45 is pulled to reciprocate, and the vacuum pump 44 performs vacuum pumping. In other embodiments, the linkage mechanism 16 may be another mechanism that mechanically connects the vacuum pump 44 to the arbor shaft 35, and the linkage mechanism 16 converts the rotational movement of the arbor shaft 35 into the movement required for the vacuum pump 44 to evacuate.

In the embodiment of the present application, the motor 21 drives not only the stirring blade assembly 14 but also the vacuum pump 44. The motor 21 for driving the stirring knife assembly 14 has high power, large torsion and high rotating speed, so that the vacuum pump can be better vacuumized, the vacuum degree in the stirring cup assembly is lower, and food materials can be better preserved and prevented from being oxidized. The existing food processor independently drives the vacuum pump through an additional low-power motor, the power of the motor is small, the torque force and the rotating speed are limited, the vacuum degree of the vacuum pumping is not low enough, and the minimum vacuum degree is-60 kilopascals (kPa). For this kind of current cooking machine, the vacuum degree of the evacuation of this application cooking machine can be less than-95 kPa, is less than the minimum vacuum degree of current cooking machine, and the evacuation effect obviously promotes, and fresh-keeping and anti-oxidant effect improve by a wide margin. In addition, the food processer of the embodiment of the application does not need an additional motor, and electrical elements (such as a coupler, a lead and the like) connected with the additional motor are omitted, so that the manufacturing cost can be saved.

Fig. 7 shows an exploded perspective view of the eccentric 16 and the vacuum system 15. Referring to fig. 7 in combination, the eccentric wheel 16 includes a bearing outer race 50, a bearing inner race 51 mounted in the bearing outer race 50, and an eccentric mass 52 mounted in the bearing inner race 51. The eccentric block 52 is tightly mounted in the bearing inner ring 51, and the bearing inner ring 51 is connected with the bearing outer ring 50 in a rolling manner through balls. The eccentric block 52 is fastened on the cutter shaft 35, and the bearing outer ring 51 is fixedly connected with the connecting rod 45. When the knife shaft 35 rotates, the eccentric block 52 is driven to rotate, and the eccentric block 52 drives the bearing inner ring 51 to rotate, so as to drive the bearing outer ring 50 to rotate, and the connecting rod 45 reciprocates. In one embodiment, the link 45 includes at least one segment extending laterally and at least one segment extending longitudinally. In the illustrated embodiment, the linkage 45 includes two transversely extending segments and a longitudinally extending segment connecting the two transversely extending segments, the linkage 45 being in the form of a stepped bend.

The eccentric block 52 is formed with an eccentric hole 53 through which the cutter shaft 35 passes. In the illustrated embodiment, the eccentric aperture 53 is an arcuate aperture, such as an aperture 53 having a cross-section of approximately three-quarters of a circle. At least one section of the knife shaft 35 has a shape matching the shape of the eccentric hole 53, so that the knife shaft is inserted into the eccentric hole 53 and tightly fitted into the eccentric hole 53, and the arched eccentric hole 53 prevents the knife shaft 35 and the eccentric block 52 from rotating relatively. In another embodiment, the eccentric hole 53 may be a circular or other shaped through hole. In the illustrated embodiment, the eccentric 53 is located above the upper clutch 40, i.e., the eccentric 53 is sleeved on a section of the knife shaft 35 located above the upper clutch 40.

Fig. 8 is a cross-sectional view of the vacuum pump 44 of the evacuation system 15 taken along line a-a of fig. 6. Referring to fig. 7 and 8, in the illustrated embodiment, the vacuum pump 44 is a reciprocating vacuum pump, or piston vacuum pump. The connecting rod 45 of the vacuum pump 44 is connected to the piston 55, and the connecting rod 45 reciprocates, pulling the piston 55 to reciprocate in the cylinder 56, to suck and discharge gas.

The cylinder 56 comprises at least a bracket 57, a scavenging cover 58 and a valve body 59. The piston 55 is sealingly mounted in the bracket 57 by a tympanic membrane 60, which tympanic membrane 60 may be a silicone or rubber material. The valve body 59 is mounted on the bracket 57, the scavenging cover 58 is hermetically mounted on the valve body 59 by a seal ring 61, and the valve body 59 is located between the bracket 57 and the scavenging cover 58. A space bladder 65 is formed between the tympanic membrane 60 and the valve body 59. The bracket 57, the scavenging cover 58 and the valve body 59 can be fixedly assembled together by screws 62. The vacuum pump 44 also includes two oppositely directed

check valves

63, 64 mounted on the valve body 59 of the cylinder 56. In one embodiment, the vacuum pump 44 may be a dual vacuum pump.

FIG. 9 illustrates a partial schematic view of the blender cup assembly 12. Referring to fig. 3 and 9, in the illustrated embodiment, a vacuum pump 44 is mounted within the cup holder 27. The vacuum pump 44 may be mounted adjacent to the inner side wall of the cup holder 27. In the illustrated embodiment, the inner sidewall of the cup holder 27 is recessed to form a mounting groove 70, and the vacuum pump 44 is fixedly mounted in the mounting groove 70. The bottom end of the handle 26 of the blender cup assembly 12 is captured to one side of the cup holder 27. In the illustrated embodiment, the mounting slot 70 is formed in the cup holder 27 on a side opposite the handle 26, and the vacuum pump 44 is mounted on a side opposite the handle 26. In other embodiments, the vacuum pump 44 may be mounted at other locations on the sidewall of the cup holder 27.

The evacuation system 15 includes a first evacuation conduit 46 connected to the vacuum pump 44, the first evacuation conduit 46 communicating with the suction port of the vacuum pump 44. The first pumping duct 46 extends at least partially within the cup holder 27. The first suction conduit 46 may extend along the inner sidewall of the cup holder 27. In the illustrated embodiment, the inner side wall of the cup holder 27 is formed with a step 71 extending transversely along the inner side wall of the cup holder 27, the step 71 being located at the top of the cup holder 27, the first suction conduit 46 extending over the step 71, the step 71 supporting the first suction conduit 46.

In one embodiment, a retaining buckle 47 is provided on the inside wall of the cup holder 27 to retain the first suction conduit 46, and the first suction conduit 46 extends through the retaining buckle 47. One or more stop buckles 47 may be provided as desired. In the illustrated embodiment, the stop button 47 is disposed on the step 71, and the first suction conduit 46 passes between the stop button 47 and the step 71. In one embodiment, the retaining buckle 47 is connected to the surface of the step 71, and forms a closed through hole with the step 71 for the first suction conduit 46 to pass through. In one embodiment, the retention clip 47 is integrally formed with the cup holder 27. In another embodiment, the retention clip 47 is separately formed and attached to the cup holder 27.

The first suction conduit 46 extends at least partially within the handle 26. A first suction conduit 46 extends from the cup holder 27 to the handle 26, extends within the handle 26 toward the top surface of the handle 26, and is sealingly connected to a first connection port 48 in the top surface of the handle 26.

Evacuation system 15 also includes a second pumping duct 49 extending within lid assembly 13. The second pumping duct 49 is in sealed communication with the first pumping duct 46 when the lid assembly 13 is mounted on the blender cup assembly 12. Second suction conduit 49 is sealingly connected to second port 43 in the bottom surface of lid assembly 13. When the lid assembly 13 is covering the blending cup assembly 12, the second connection port 43 is inserted into the first connection port 48 and is hermetically connected, so that the first suction conduit 46 and the second suction conduit 49 are hermetically connected.

The evacuation system 15 includes a one-way valve 42 mounted at the intersection of the cup lid assembly 13 and the cup cavity of the blender cup assembly 12. The check valve 42 is connected to the second suction conduit 49 and is installed at one end of the second suction conduit 49. The evacuation system 15 thus evacuates the interior of the cup cavity of the blender cup assembly 12.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cooking machine, its characterized in that: it includes:

a main body (11) including a motor (21);

the stirring cup assembly (12) is detachably assembled with the main machine (11), and the stirring cup assembly (12) comprises a cup body (25) and a cup seat (27) positioned at the bottom of the cup body (25);

the stirring knife assembly (14) is positioned in the stirring cup assembly (12) and comprises a knife shaft (35) connected with the motor (21), and a linkage mechanism (16) is arranged on the knife shaft (35); the stirring knife assembly is arranged at the bottom of the stirring cup assembly; and

the vacuumizing system (15) comprises a vacuum pump (44) arranged on the stirring cup assembly (12), and the vacuum pump (44) is arranged in the cup base (27); the vacuum pump (44) is connected with the linkage mechanism (16), and the linkage mechanism (16) performs vacuum pumping along with the rotation of the cutter shaft (35).

2. The food processor of claim 1, wherein: the linkage mechanism (16) comprises an eccentric wheel.

3. The food processor of claim 2, wherein: the vacuum pump is provided with a connecting rod (45) connected with the eccentric wheel (16), and the connecting rod (45) is used for vacuumizing through the movement of the eccentric wheel (16) along with the rotation of the cutter shaft (35).

4. The food processor of claim 3, wherein: the eccentric wheel (16) comprises a bearing outer ring (50), a bearing inner ring (51) arranged in the bearing outer ring (50) and an eccentric block (52) arranged in the bearing inner ring (51), the eccentric block (52) is fastened on the cutter shaft (35), and the bearing outer ring (50) is fixedly connected with the connecting rod (45).

5. The food processor of claim 4, wherein: an eccentric hole (53) for the cutter shaft (35) to pass through is formed in the eccentric block (52), and the eccentric hole (53) is an arched through hole.

6. The food processor of claim 3, wherein: the link (45) includes at least one segment extending laterally and at least one segment extending longitudinally.

7. The food processor of claim 1, wherein: the inner side wall of the cup seat (27) is sunken to form an installation groove (70), and the vacuum pump (44) is fixedly installed in the installation groove (70).

8. The food processor of claim 7, wherein: the stirring cup assembly (12) comprises a handle (26) arranged on one side of the cup body (25), the bottom end of the handle (26) is clamped on one side of the cup seat (27), and the mounting groove (70) is formed on one side, opposite to the handle (26), of the cup seat (27).

9. The food processor of claim 1, wherein: the evacuation system (15) comprises a first evacuation conduit (46) connected to the vacuum pump (44), the first evacuation conduit (46) extending at least partially within the cup holder (27).

10. The food processor of claim 9, wherein: a step (71) extending transversely along the inner side wall of the cup seat (27) is formed on the inner side wall of the cup seat (27), and the first air exhaust duct (46) extends on the step (71).

11. The food processor of claim 10, wherein: and a limit buckle (47) for limiting the first air exhaust conduit (46) is convexly arranged on the inner side wall of the cup seat (27).

12. The food processor of claim 11, wherein: the limit buckle (47) is arranged on the step (71), and the first air suction duct (46) penetrates through the position between the limit buckle (47) and the step (71).

13. The food processor of claim 9, wherein: the blender cup assembly (12) includes a handle (26) disposed on one side of the cup body (25), and the first extraction conduit (46) extends at least partially within the handle (26).

14. The food processor of claim 9, wherein: the cooking machine including detachably install in bowl cover subassembly (13) of stirring cup subassembly (12), evacuation system (15) include second air exhaust pipe (49), second air exhaust pipe (49) are in extend in bowl cover subassembly (13), and work as bowl cover subassembly (13) install in when stirring cup subassembly (12) is gone up, second air exhaust pipe (49) with first air exhaust pipe (46) intercommunication.

15. The food processor of claim 1, wherein: an upper clutch (40) is installed at the bottom end of the cutter shaft (35), and the linkage mechanism (16) is located above the upper clutch (40).