JP2010148533A - Electric blender - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric blender in which packing is surely inserted only between a blender container and a cutter base to prevent erroneous insertion. <P>SOLUTION: A blender body is denoted by 1, a container base is denoted by 2, a cutter is denoted by 3, packing for liquid leakage prevention is denoted by 5, a blender container is denoted by 6, a container lid is denoted by 7, a bearing support portion is denoted by 8, a flange of the cutter base is denoted by 9, an annular shelf portion extending inwards along the circumferential direction on the inner periphery of the container base 2 is denoted by 10, and a motor is denoted by 11. By making the dimension of the lower surface of the cutter base larger than the inner dimension of the packing 5, instability is generated when the packing 5 is erroneously inserted. In the figure, the packing 5 for the liquid leakage prevention is appropriately mounted on the flange 9 of the cutter base, surely inserted between the cutter base and the blender container 6, screwed and tightened. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electric mixer, and more particularly to prevention of erroneous insertion of liquid leakage packing of the electric mixer.

  As shown in FIG. 1, the electric mixer is assembled by placing a container table 2 on a main body 1 and screwing a mixer container 6 having a container lid 7 into the container table 2. Usually, the mixer container 6 and the container stand 2 can be removed so that the food in the container can be poured out and the mixer container 6 can be washed. In such a type of mixer, when it is desired to clean the inside of the container table 2, it has not been possible to easily clean every corner. Therefore, as shown in FIG. 2, the mixer container 6, the cutter table 4, and the container table 2 can be separated from each other, packing on the flange 9 of each cutter table, and packing on the annular shelf 10. There is known a structure that can be tightened by a screw structure via 5 'and can be divided into three parts.

  As an example, the mixer container, the cutter table, and the container table can each be divided into three parts by a screw structure. The first packing is provided between the cutter table and the container table, and the second packing is provided between the mixer container and the cutter table. Is provided to prevent liquid leakage (see, for example, Patent Document 1).

  It is also known that the mixer container, the cutter table and the container table can be divided into three parts by a screw structure, and only one packing is provided between the mixer container and the cutter table to prevent liquid leakage. (For example, refer to Patent Document 2).

  In this way, one type of packing that is provided only between the mixer container and the cutter base and prevents liquid leakage is simple in terms of component structure because only one packing is required, but packing is performed during assembly after disassembly. Inadvertently inserted between the cutter base and the container base and tightened, and as a result, liquid leakage from the mixer container may occur.

With reference to FIG. 3, an example in which the packing is erroneously inserted and installed will be described next. 1 is a mixer body, 2 is a container base, 3 is a cutter, 5 'is a packing for preventing liquid leakage, 6 is a mixer container, 7 is a container lid, 8 is a bearing support, 9 is a flange of the cutter base, and 10 is a container An annular shelf portion 11 extending inward along the circumferential direction on the inner periphery of the base 2 is an electric motor. In the figure, the packing 5 ′ for preventing liquid leakage is erroneously inserted and tightened between the flange 9 of the cutter table and the annular shelf 10 of the container table 2.
JP-A-63-77527 JP 2000-210206 A

  In this way, one type of packing that is provided only between the mixer container and the cutter base and prevents liquid leakage is simple in terms of component structure because only one packing is required, but packing is performed during assembly after disassembly. Was accidentally inserted between the cutter base and the container base and tightened, and as a result, liquid leakage from the mixer container and breakage of the connecting parts sometimes occurred. Accordingly, an object of the present invention is to provide an electric mixer that can ensure that the packing is correctly inserted only between the mixer container and the cutter base at the time of assembly after disassembly and can prevent erroneous insertion.

  In order to solve the above problems, an electric mixer according to claim 1 of the present invention is provided with an electric mixer main body and an annular shelf that is placed on the main body and extends inward along the circumferential direction on the inner periphery. A container table, a mixer container attached to the container table, and a cutter table sandwiched between the container table and the mixer container, and having a bearing support portion that rotatably supports the cutter at the center. In an electric mixer in which a flange of a bearing support part is placed on top, the lower end surface of the mixer container is pressed onto the flange via a packing, and the cutter table is sandwiched and fixed by the container table and the mixer container. A means for reliably inserting the packing only between the mixer container and the cutter base at the time of subsequent assembly was provided.

  An electric mixer according to a second aspect of the present invention is an electric mixer main body, a container base mounted on the main body and provided with an annular shelf extending inward along the circumferential direction on the inner periphery, and attached to the container base And a cutter stand having a bearing support portion that is sandwiched between the container stand and the mixer vessel and rotatably supports the cutter at the center, and a flange of the bearing support portion is provided on the cutter stand. In the electric mixer in which the lower end surface of the mixer container is pressed onto the flange via a packing and the cutter table is sandwiched and fixed by the container table and the mixer container, The bottom surface was made larger.

  In this way, when assembling after disassembling the mixer container and the cutter base, it is ensured that the packing is correctly inserted only between the mixer container and the cutter base, preventing mistakes in the packing, and preventing liquid leaks due to incorrect installation. At the same time, it is possible to prevent damage to the connecting parts due to incorrect assembly.

  An electric mixer according to a third aspect of the present invention is an electric mixer main body, a container base placed on the main body and provided with an annular shelf extending inward along the circumferential direction on the inner periphery, and attached to the container base And a cutter stand having a bearing support portion that is sandwiched between the container stand and the mixer vessel and rotatably supports the cutter at the center, and a flange of the bearing support portion is provided on the cutter stand. In the electric mixer that is placed and press-contacted with the lower end surface of the mixer container through the packing on the flange, and the cutter table is sandwiched and fixed by the container table and the mixer container, contact with the leg of the annular shelf And it was set as the structure which provided the nail | claw for the fitting which has the some elasticity extended in the orthogonal | vertical direction at the side of the said cutter base.

  An electric mixer according to a fourth aspect of the present invention is an electric mixer main body, a container base mounted on the main body and provided with an annular shelf extending inward along the circumferential direction on the inner periphery, and attached to the container base And a cutter stand having a bearing support portion that is sandwiched between the container stand and the mixer vessel and rotatably supports the cutter at the center, and a flange of the bearing support portion is provided on the cutter stand. In the electric mixer that is placed and press-contacted with the lower end surface of the mixer container through the packing on the flange, and the cutter table is sandwiched and fixed by the container table and the mixer container, contact with the leg of the annular shelf And it was set as the structure which provided the nail | claw for a fitting which has the some elasticity extended in the orthogonal | vertical direction at the side of the said cutter stand, and formed the protrusion part in the outward of the downward part of the nail | claw for a fitting.

  In this way, when the leg of the annular shelf is forcibly pushed in, the fitting claw is pushed inward, and the fitting claw is repelled by its elasticity to generate an outward force, generating an upward component force on the leg. Thus, the operator feels uncomfortable in the operation and can recognize that the packing position is wrong. As a result, an assembly error is noticed, and liquid leakage from the mixer container 6 and breakage of the connecting parts can be prevented.

  As described above, the electric mixer of the present invention ensures that the packing is correctly inserted only between the mixer container and the cutter base during assembly after disassembling the mixer container and the cutter base, and prevents an incorrect packing. In addition to preventing liquid leakage due to incorrect assembly, it is possible to prevent damage to connecting parts due to incorrect installation.

  An embodiment of an electric mixer of the present invention will be described with reference to the drawings. 4 and 5 show the first embodiment of the present invention, and FIGS. 6 and 7 show the second embodiment of the present invention.

  Next, a first embodiment of the electric mixer of the present invention will be described. FIG. 4 is a cross-sectional view of the cutter base, the mixer container base, and the leakage prevention packing, FIG. 4 (A) is a conventional packing erroneous insertion state diagram, and FIG. 4 (B) is a packing insertion state diagram of the present invention. . FIG. 5 is an assembly view of the electric mixer of the present invention in which the leakage prevention packing is normally inserted.

  In FIG. 4A, the flange of the bearing support portion is placed on the annular shelf portion of the container base, and the lower end surface of the mixer container is pressed onto the flange via the packing, and the container base and the mixer container In the electric mixer for sandwiching and fixing the cutter table, the packing 5 is placed on the flange 9 of the bearing support 8 because the inner size of the packing 5 is larger than the size of the lower surface of the cutter table 4. Similarly, since the packing 5 'is erroneously placed on the annular shelf 10 of the container base 2, the mixer container 6 can be screwed in either case. As a result, the liquid leakage from the mixer container and the breakage of the connecting parts occur without noticing the assembly error.

  On the other hand, in the electric mixer of the present invention, as shown in FIG. 4B, the packing 5 is placed on the flange 9 of the bearing support portion 8 by making the size of the lower surface of the cutter table larger than the inner size of the packing. Although there is no problem in the normal state of mounting, even if the packing 5 ′ is erroneously mounted on the annular shelf 10 of the container table 2, the lower surface of the cutter table 4 is placed on the packing 5 ′. The cutter base 4 is not positioned correctly. Therefore, the mixer container 6 cannot be screwed normally. As a result, an assembly error is noticed, and liquid leakage from the mixer container 6 and breakage of the connecting parts can be prevented.

  Next, an example in which the packing is normally inserted and installed is shown in FIG. 1 is a mixer body, 2 is a container base, 3 is a cutter, 5 is a packing for preventing liquid leakage, 6 is a mixer container, 7 is a container lid, 8 is a bearing support, 9 is a flange of the cutter base, and 10 is a container base An annular shelf portion 11 that extends inward along the circumferential direction on the inner periphery of 2, 11 is an electric motor. In the figure, the packing 5 for preventing liquid leakage is correctly placed on the flange 9 of the cutter base, and is securely inserted between the cutter base and the mixer container 6 and screwed and tightened.

  Next, 2nd Embodiment of the electric mixer of this invention is shown in FIG. 6, FIG. In the figure, the same components as those in FIGS. 3 and 5 are denoted by the same reference numerals. FIG. 6 is a cross-sectional view of the electric mixer of the present invention in which the packing is normally inserted, and FIG. 7 is a cross-sectional view of the cutter base and the container base of the electric mixer of the present invention in which the packing is erroneously inserted.

  In the embodiment of FIG. 6, a claw 14 for fitting when the cutter table and the container table 4 are combined is provided inside the flange 9. When this portion is enlarged in FIG. 7B, the fitting claws 14 are elastic claws extending in the vertical direction on the side of the cutter base, and a plurality of fitting claws 14 are arranged inside the flange 9. ing. Further, a protrusion 15 is formed on the outer side of the lower portion of the claw 14. On the other hand, legs 13 are formed inwardly on the annular shelf 10, and these fitting claws 14 are in contact with the legs 13 of the annular shelf 10.

  The protrusion 15 of the fitting claw 14 and the leg 13 of the annular shelf 10 are engaged with each other when the packing 5 is normally inserted on the flange 9, and serve as a temporary fixing for positioning. Plays.

  Next, in FIG. 7A, a state when the packing 5 ′ is erroneously placed on the annular shelf 10 of the container base 2 will be described. If the packing container 5 is erroneously placed on the annular shelf 10 of the container base 2 and the mixer container 6 is screwed into the container base 2, the legs 13 of the annular shelf 10 are forcibly pushed in and fitted. The projection 15 of the combination claw 14 is pressed inward to push the engagement claw 14 inward, and the engagement claw 14 is repelled by its elasticity to generate an outward force. As a result, the leg 13 As a result, an upward component force is generated, the cutter table becomes unstable, and the operator feels uncomfortable in the operation, and can recognize that the packing position is wrong. As a result, an assembly error is noticed, and liquid leakage from the mixer container 6 and breakage of the connecting parts can be prevented.

  As a treatment after using the electric mixer, it is indispensable to clean the mixer container. One method is to separate the mixer container and the container stand and clean them manually. However, as a simpler method for cleaning the mixer container, conventionally, water or lukewarm water is put in the container and a small amount of neutral detergent is used. In addition, there were a method of operating for several tens of seconds and a method of operating an electric motor at a low speed by adding a small amount of neutral detergent (see JP-A-2003-135289). However, in these cases, there are cases where the stains cannot be removed sufficiently.

  Therefore, in the method for cleaning a mixer container provided by the present invention, the water flow is irregular by adding about 1/3 of water or warm water to the bottle, adding a small amount of detergent, pressing the cleaning course button, and repeating intermittent operation of the motor. It is possible to remove persistent stains adhering to the gaps by utilizing the change to.

  The embodiment of FIG. 8 is a control circuit diagram of intermittent operation. A forward rotation switch 21 and a reverse rotation switch 22 are interposed in the operation circuit of the electric motor 11. By turning on a main power switch (not shown) and supplying an intermittent signal of, for example, 4 seconds ON and 4 seconds OFF to either the forward rotation switch 21 or the reverse rotation switch 22 from the signal generator 20, intermittent operation of the motor Repeatedly, the intermittent flow of the cutter in either the forward or reverse direction causes the water flow to change irregularly. Therefore, it is difficult to drop in the conventional continuous operation. It becomes possible to remove dirt.

The embodiment in FIG. 9 is a case of forward / reverse switching intermittent operation, and FIG. 11 (A) is a control circuit diagram. A forward rotation switch 21 and a reverse rotation switch 22 are interposed in the operation circuit of the electric motor 11. The main power switch is turned on, and the signal of the signal generator 20 shown in FIG. 11B is alternately supplied as an operation signal from the signal generator 20 to the forward switch 21 and the reverse switch 22. For example, by supplying a forward / reverse switching signal for forward rotation of 4 seconds and reverse rotation of 4 seconds, the forward / reverse switching intermittent operation of the electric motor is repeated, and accordingly, the cutter is intermittently operated in the forward and reverse directions. As a result, the water flow changes irregularly, and it becomes possible to remove persistent dirt adhering to the gap, which is difficult to remove in the conventional continuous operation.

External view of a general electric mixer. The separation figure of the mixer container of this invention, a cutter stand, and a container stand. Sectional drawing of the electric mixer at the time of packing incorrect insertion. The relationship diagram of a cutter stand, a container stand, and packing. Sectional drawing of the electric mixer at the time of normal insertion of packing. Sectional drawing of the electric mixer at the time of normal insertion of packing. Sectional drawing of the electric mixer at the time of packing incorrect insertion. The control circuit diagram of intermittent operation. Forward / reverse switching intermittent operation circuit diagram.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mixer main body 2 Container base 3 Cutter 4 Cutter base 5,5 'Packing for preventing liquid leakage 6 Mixer container 7 Container lid 8 Bearing support 9 Cutter base flange 10 Annular shelf 11 Electric motor 13 Annular shelf leg 14 Claw for fitting 15 Protruding part 20 Signal generating part 21 Forward rotation switch 22 Reverse rotation switch

Claims (4)

An electric mixer main body, a container base placed on the main body and provided with an annular shelf portion extending inward along the circumferential direction on the inner periphery, a mixer container attached to the container base, and the container base and the mixer container A cutter base having a bearing support part sandwiched between and having a bearing support part rotatably supporting the cutter at the center. A flange of the bearing support part is mounted on the cutter base, and a packing is provided on the flange. In the electric mixer in which the lower end surface of the mixer container is pressed and the cutter table is sandwiched and fixed by the container table and the mixer container, the packing is surely inserted only between the mixer container and the cutter table at the time of assembly after disassembly. An electric mixer, characterized in that a means is provided. An electric mixer main body, a container base placed on the main body and provided with an annular shelf portion extending inward along the circumferential direction on the inner periphery, a mixer container attached to the container base, and the container base and the mixer container A cutter base having a bearing support part sandwiched between and having a bearing support part rotatably supporting the cutter at the center. A flange of the bearing support part is mounted on the cutter base, and a packing is provided on the flange. In the electric mixer in which the lower end surface of the mixer container is pressed and the cutter table is sandwiched and fixed by the container table and the mixer container, the size of the lower surface of the cutter table is made larger than the inner size of the packing. mixer. An electric mixer main body, a container base placed on the main body and provided with an annular shelf portion extending inward along the circumferential direction on the inner periphery, a mixer container attached to the container base, and the container base and the mixer container A cutter base having a bearing support part sandwiched between and having a bearing support part rotatably supporting the cutter at the center. A flange of the bearing support part is mounted on the cutter base, and a packing is provided on the flange. In the electric mixer in which the lower end surface of the mixer container is press-contacted and the cutter table is sandwiched and fixed by the container table and the mixer container, the mixer unit comes into contact with the leg of the annular shelf, and is perpendicular to the side of the cutter table. An electric mixer comprising a plurality of extending fitting claws. 4. The electric mixer according to claim 3, wherein a protrusion is formed on the outer side of the lower portion of the fitting claw having elasticity.

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