JP3774717B2 - Electric mixer - Google Patents

Description

  The present invention relates to an electric mixer mainly used for grinding food.

  Various types of electric mixers that grind food with a rotary blade have been known. The present invention is particularly connected to a passive connector on the inner bottom of a container part in which a drive motor is built and a rotary output driven output connector projects and a passive connector meshing with the output connector projects downward. The present invention relates to an electric mixer having a structure including a crushed body provided with a rotary blade and a lid container body to be crowned on the crushed body.

  The electric mixer stores food to be crushed in a container portion of the crushed object, and attaches the lid container body to the crushed object, or stores food in an inverted lid container body, and covers the crushed object. The food is put into the container body and the food is sealed, and in this state, the food is crushed by the rotational drive of the rotary blade by the engagement of the output connector of the main body and the passive connector of the crushed body.

  In order to ensure safe operation of the drive motor, a structure is adopted in which the drive motor is switched on in accordance with the mounting of a crushed object or the like, particularly in conventional equipment.

  For example, in Japanese Examined Patent Publication No. 60-35133 (Patent Document 1), when a crushed body is simply covered with a lid container body, when the crown is mounted, the four legs of the lid container body are below the crushed body. And a structure for operating the switch by inserting the leg into a hole for operating the switch plate provided in the main body.

  Also, in Japanese Utility Model Publication No. 6-42589 (Patent Document 2), the drive motor operates even when the lid container body is mounted on the crushed body and the crushed body is further mounted on the main body and the output connector and the passive connector are engaged. In addition, there is disclosed a structure in which a container cover having a switch operation unit is provided separately, and the switch operates by attaching the container cover to the main body.

  JP-A-6-269365 (Patent Document 3) employs an outer lid that covers the upper part of the lid container body instead of the cover disclosed in Patent Document 2, and is a switch that stands on the side of the lid container body. There is disclosed a structure in which an operation unit is provided in a main body and the switch operation unit is operated by the outer lid.

  Furthermore, in Japanese Patent No. 2923942 (Patent Document 4), a lid container body is composed of an inner lid, a pressing piece (switch operating portion) having a pressing projection, and an upper lid, and the inner lid is crowned and mounted. A structure is disclosed in which the switch operation unit is operated with the upper lid after the is attached to the main body.

Japanese Patent Publication No. 60-35133. Japanese Utility Model Publication No. 6-42589. JP-A-6-269365. Japanese Patent No. 2923942.

  The switch structure of the conventional electric mixer described above is accompanied by an increase in the number of large members, and therefore has a problem of manufacturing cost and an obstacle to downsizing the apparatus. There is also a problem with operability.

  That is, the switch structure described in Patent Document 1 may cause the lid container body to be mistakenly removed, which is problematic in safety. Furthermore, the simultaneous insertion operation into the four-leg operating hole is complicated.

  The switch structures described in Patent Documents 2, 3, and 4 both increase the number of members by separately providing a cover member and an outer lid, and make the entire apparatus bulky by the mounting range of the cover member and the outer lid. As a result, the volume of the crushed body and the lid container body, which are storage locations for food crushing, is reduced.

  In particular, the device described in Patent Document 3 has a side column portion for the switch operation unit formed in the main body, which is an obstacle to downsizing the entire device, and the switch is operated incorrectly without an outer cover. If it is done, the inner lid may be scattered.

  In the device described in Patent Document 4, the switch operation unit is exposed when the upper lid is not attached, and thus there is a possibility that the switch is erroneously turned on.

  Therefore, the present invention proposes an electric mixer having a switch structure that can easily achieve downsizing of the apparatus and is excellent in safety and operability.

  The present invention (Claim 1) includes a main body with a drive motor and a rotationally driven output connector, and a passive connector that meshes with the output connector on the inner bottom of a container portion that projects downward. In an electric mixer comprising a crushed body provided with a rotary blade connected to a connector and a lid container body mounted on the crushed body, a storage space for the crushed body is formed at the top of the main body and stored A vertical guide portion is formed on the inner peripheral wall of the space, a switch operation portion for controlling the operation of the drive motor is provided on the upper end surface of the peripheral wall, and a guide portion corresponding to the vertical guide portion is provided on the outer peripheral surface of the container portion of the crushed body. A transparent container body part to be mounted on the container part of the crushed body, and a transparent container body part freely fitted on a lower outer periphery of the transparent container body part so as to be freely rotatable. When the crushed body is attached to the storage space And it is characterized in that it is constituted by a ring body having a working portion which allowed to operate and the switch operation portion in a shape corresponding to the wall top end.

  Therefore, the food is stored in the container part of the crushed body or the lid container body, and the crushed body is inserted into the storage space along the guide portion in a state where the lid container body is attached to the crown and integrated with the crushed body, and the ring When the body is set to a predetermined rotation position and the switch operation unit is operated by the action unit, the food is crushed by driving the rotary blade of the crushed body. When the crushed body (integrated with the lid container body) is removed from the storage space, the switch is turned off.

  In the present invention (Claim 2), particularly in the above configuration, a screw groove is formed on the inner peripheral surface of the crushed body and the lower outer surface of the lid container body, and the lid container body is screwed and attached to the crushed body. Thus, the crushed body and the lid container body are not easily detached, and the safety is improved.

  According to the present invention (Claim 3), an opening is provided on the upper end surface of the inner peripheral wall of the storage space of the main body, the switch operating part is formed of a rod-shaped member, and the apex of the switch operating part is not projected in the opening. A configuration is adopted in which the operating portion of the ring body portion is formed as a protrusion that can be inserted into the opening, and the switch cannot be turned on unless the protrusion of the ring body is inserted into the opening. Therefore, the drive motor is not rotated by accidentally touching the switch operation unit.

  Further, according to the present invention (Claim 4), the container portion of the crushed body is placed around the output connector in the storage space of the main body, and the operation of the switch operation portion by the action portion is not performed in the placed state. , Adopting a configuration in which the passive connector is completely meshed with the output connector, and a cushion base portion is provided that can be moved downward to a position where the operation portion is operated by the action portion. The device is not driven simply by storing it in the storage space, and by pressing the shredded body (integrated with the lid container body) downward, both connectors are connected and the switch is turned on to perform crushing operation. When the lower pressure of the body (integrated with the lid container body) is released, the crushing operation stops. Therefore, the operation of the apparatus for crushing food is easy and safe.

  According to the present invention, a storage space is formed in the main body, a switch operation portion is provided on the upper end surface of the peripheral wall of the storage space, a crushed body (integrated with the lid container body) is stored in the storage space, and a connector for driving a rotary blade is provided. The drive motor is switched on at the same time as the connection, and a large member such as a cover member as in the conventional device is not required, so that the device itself can be easily made compact, and a crushed body (lid container) Since the switch operation is performed only by attaching and detaching the body), the operability is excellent.

  In particular, by adopting a screwed structure (invention of claim 2) for the integration of the crushed body and the lid container body, the crushed body and the lid container body are reliably integrated, and a simple fit like a conventional device. Unlike the mating structure, there is no possibility of detachment at the time of use, and safety is improved.

  Further, when a configuration (invention of claim 3) in which the switch operation portion on the upper end surface of the inner peripheral wall of the crushed object storage space is provided in a non-projecting state, the switch operation portion is not erroneously operated and safety is improved.

  Further, when a configuration (invention of claim 4) is provided in which a cushion base portion for placing the crushed body is provided in the storage space, the crushed body integrated with the lid container body is further stored in the storage space. Since it does not operate unless the crushed body (integrated with the lid container body) is pressed downward, an instrument that is safe and excellent in operability can be provided.

Next, an embodiment of the present invention will be described. The electric mixer shown in the embodiment includes a main body 1, a crushed body 2, and a lid container body 3.

  The main body 1 includes a drive motor 12 in a predetermined case 11, a storage space 13 for the crushed body 2 at an upper portion thereof, an output connector 14 and a cushion base portion 15 provided in the storage space 13, and the drive motor 12. A switch operation unit 16 for controlling the operation is provided.

  The drive motor 12 is connected to the power cord 121 through the micro switch 161 of the switch operation unit 16, and the output connector 14 is mounted on the output shaft (rotary shaft).

  The storage space 13 is formed above the drive motor 12, and a vertical guide portion 132 formed in a groove is formed on the inner peripheral surface of the peripheral wall portion 131.

  Further, an output connector 14 whose upper surface is formed in a chevron shape for fitting is protruded from the center bottom of the storage space 13, and a cushion base 15 is provided so as to surround the output connector 14. .

  The cushion pedestal 15 is formed by a ring-shaped pedestal 151, a leg 152 provided to be stretchable, and a ridge 153 that is attached to the leg 152 and biases the pedestal 151 upward. The range of the vertical movement of the part 151 is that the crushed body 2 described later is simply placed on the pedestal part 151, the switch operating unit 16 is not operated, and the crushed body 2 is down-pressed to output the connector 14 and the passive connector. When the switch 24 is completely engaged, the switch operating unit 16 is in a lower position where it operates.

  The switch operation unit 16 includes a micro switch 161 that turns on and off the power of the drive motor 12 and an operation shaft (bar-shaped member) 162 that operates the micro switch 161. The operation shaft 162 moves up and down at a predetermined position. It is incorporated in the case so that its tip is allowed to face an opening 163 provided on the upper end surface of the peripheral wall of the storage space 13 and is arranged in a non-projecting state. The top part of the peripheral wall part 131 in which the opening part 163 is formed is formed to be slightly recessed.

  The crushed body 2 includes an upper container body portion 21, a lower bearing housing body portion 22, a rotary shaft portion 23, a passive connector 24, and a rotary blade 25.

  The upper container body portion 21 has an outer diameter container shape stored in the storage space 13, and has a guide portion (protrusion portion) 211 corresponding to the vertical guide portion 132 on the outer peripheral surface, and a screw groove 212 on the inner peripheral surface. The packing 213 is mounted immediately below the inner peripheral surface, and the shaft hole of the rotary shaft portion 23 is formed in the center of the bottom surface.

  The lower bearing housing part 22 is attached to the lower part of the upper container part 21 with a screw or the like, and has a shaft hole that opens at the center and fits the lower end of the rotary shaft part 23 at the bottom in the center part. A perforated cylindrical bearing housing 221 is provided.

  The rotating shaft portion 23 has an existing cylindrical shield ball bearing bearing body (structure in which upper and lower two-stage ball bearing bearings are connected by a curled cylinder and the upper and lower ends are covered to prevent leakage of internal grease). A rotary shaft 232 is inserted and a mechanical seal portion (rubber seal is covered with a thin metal plate) 233 is provided above and below the bearing body 231 so that the rotary shaft 232 protrudes up and down. It is. Further, a screw is engraved on the protruding rotating shaft 232.

  Then, the rotating shaft portion 23 is housed in the bearing housing portion 221 of the lower bearing housing portion 22, and the lower bearing housing portion 22 is connected to the upper container body portion 21 by means such as screwing. Further, a passive connector 24 that engages with the output connector 14 is attached to the rotary shaft 232 that projects downward from the lower bearing housing portion 22, and the rotary blade 25 is attached to the rotary shaft 232 that projects from the bottom surface of the upper container body portion 21. When installed, the crushed body 2 is assembled.

  The lid container body 3 includes a transparent container body portion 31 and a ring body portion 32. The transparent container body portion 31 has a dome shape, and a screw groove 311 that is screwed into a screw groove 212 of the upper container body portion 21 on the lower outer periphery. Further, a concave groove 312 for mounting the ring body portion 32 is formed at an appropriate position on the lower outer periphery.

  The ring body portion 32 has an outer diameter corresponding to the peripheral wall portion 131 of the main body 1, is fitted in the groove 312 as a shape in which the top portion is bent inward, and is disposed in a band shape below the transparent container body portion 31. , Which is mounted so as to be able to rotate arbitrarily, and has a shape corresponding to the recess of the top surface of the peripheral wall 131 in which the opening 163 is formed, and a protrusion that can enter the opening 163 at the location ( An action part) 321 is provided.

  Thus, the electric mixer is composed of three members, that is, the main body 1, the crushed body 2, and the lid container body 3, and the use state thereof will be described below.

  The food to be crushed can be stored in the upper container body portion 21 of the crushed body 2 and the lid container body 3 can be screwed on when the food is to be crushed. Then, the crushed body 2 is screwed and mounted, and the crushed body 2 in which food is integrated and the lid container body 3 are accommodated inside.

  In particular, since the crushed body 2 and the lid container body 3 are screwed and attached, they are not detached at the time of use compared to those connected by fitting means such as a conventional device.

  Then, hold the crushed body 2 and the lid container body 3 (hereinafter referred to as “housing body”) holding the object to be crushed by hand and fit the crushed body 2 into the storage space 13 with the vertical guide portion 132 and the guide portion 211. Insert them together. At this time, the ring body portion 32 is rotated to associate the recessed portion of the peripheral wall portion 131 with the protruding portion 321.

  By simply storing the crushed body 2 of the storage body in the storage space 13, the output connector 14 and the passive connector 24 are completely engaged with each other while the lower bearing body storage portion 22 is placed on the cushion base portion 15. It is not a state, but a little away.

  Therefore, when the lid body 3 of the storage body is pressed downward, the storage body moves slightly downward, the output connector 14 and the passive connector 24 are completely engaged, and at the same time, the protrusion 321 enters from the opening 163. The operation downpipe 162 is pushed downward, the micro switch 161 is operated, the drive motor 12 is energized, the rotary blade 25 is driven to rotate, and the stored food is pulverized.

  In particular, in the crushing operation described above, the rotational reaction force is suppressed by the engagement between the vertical guide portion 132 and the guide portion 211, and a heat sink is not provided as in the conventional device, and rotational vibration due to the heat sink occurs. There is no room for efficient crushing.

  When the container is lightly down-pressed for a desired time (crushing time), sufficient food crushing is performed, and the pressurization is released, the container is pushed up by the urging force of the cushion base 15, and the switch-on state by the protrusion 321 is The drive motor 12 is released.

  When the container is taken out and the crushed body 2 is removed from the lid container body 3 in the inverted state, the crushed food is contained in the lid container body 3, and then the crushed food is transferred to appropriate tableware or cooked directly. It is intended to be used.

1 is an overall perspective view of an embodiment of the present invention. Explanatory drawing of the main body (a partially cut front view). Explanatory drawing of the crush body (a front view partly cut). Explanatory drawing of the assembled state of the rotating shaft Explanatory drawing of the lid container body (front view partly cut). Explanatory drawing of the switch operation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 11 Case 12 Drive motor 13 Storage space 131 Peripheral wall part 132 Vertical guide part 14 Output connector 15 Cushion base part 151 Base part 152 Leg part 153 Stroke 16 Switch operation part 161 Micro switch 162 Operation vertical rod (bar-shaped member)
163 Opening part 2 Crushed body 21 Upper container body part 211 Guide part (protrusion part)
212 Thread groove 213 Packing 22 Lower bearing housing part 221 Bearing housing part 23 Rotating shaft part 231 Bearing body 232 Rotating shaft 233 Mechanical seal part 24 Passive connector 25 Rotating blade 3 Cover container body 31 Transparent container body part 311 Screw groove 312 Concave groove 32 Ring body part 321 Projection part (action part)

Claims (4)

A rotary blade connected to the passive connector is provided on the inner bottom of the container part that has a drive motor and has a projecting output connector that is driven to rotate and a passive connector that meshes with the output connector. In the electric mixer comprising the crushed body and a lid container body to be crowned on the crushed body,
A crushed object storage space is formed in the upper part of the main body, a vertical guide part is formed on the inner peripheral wall of the storage space, and a switch operation unit for controlling the operation of the drive motor is provided on the upper end surface of the peripheral wall. A guide part corresponding to the vertical guide part is provided on the outer peripheral surface of the part, and the lid container body is arbitrarily attached to the transparent container body part to be mounted on the container part of the crushed body, and the lower outer periphery of the transparent container body part. And a ring body portion having an action portion for operating the switch operation portion in a shape corresponding to the upper end of the peripheral wall of the storage space when the transparent container body portion is attached to the crushed body so as to be rotatable. An electric mixer characterized by being configured.   2. The electric mixer according to claim 1, wherein a screw groove is formed on the inner peripheral surface of the crushed body and the lower outer surface of the lid container body, and the lid container body is screwed onto the crushed body.   An opening is provided in the upper end surface of the inner peripheral wall of the storage space of the main body, the switch operation part is formed of a rod-like member, the apex of the switch operation part is arranged in a non-projecting state in the opening, and the action part of the ring body part is The electric mixer according to claim 1 or 2, wherein the electric mixer is a protrusion that can be inserted into the opening. The crushed body is placed on the periphery of the output connector in the storage space of the main body, the operation of the switch operation unit by the action part is not performed in the placed state, the passive connector is completely meshed with the output connector, and The electric mixer according to any one of claims 1 to 3, further comprising a cushion base portion that is movable downward to a position where the operation portion is operated by the action portion.

Images