JP2013052109A - Bread making machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bread making machine which suppresses an increase of a production cost and a body size, and can make bread having substantially a planar base without forming holes caused by a kneader blade by a structure which is relatively easy to wash and take case.SOLUTION: In the bread making machine which includes a body 1, a bread container 2, a kneader blade 3, a baking chamber 4, a drive part 5, an operation part 6, an elevator 7, and a control part 8, the kneading process is carried out while the base of the kneader blade 3 remains above an uppermost position of a base of the bread container 2, when the kneading process is finished, the elevator 7 rises to raise the bread container 2 up to a position where an upper face of the kneader blade 3 is substantially flush with the uppermost position of the base of the bread container 2, and the baking process is carried out at a position after raised.

Description

  The present invention relates to a bread maker mainly used at home, and more particularly to a bread maker capable of manufacturing a bread having a substantially flat bottom without forming a hole by a kneading blade on the bottom of the bread. .

  In a general home-made bread maker, bread dough is formed by kneading bread materials by rotating kneading blades in a bread container by driving a motor. In such a bread maker, a shaft penetrates the center of the bottom of the bread container, the upper end of the shaft is fitted to the kneading blade, and the lower end of the shaft is connected to the rotating shaft of the drive unit via a coupling member or the like. The configuration to be made is common. In this structure, the base which supports a bread container is being fixed to the bottom of a bread container so that the circumference | surroundings of a coupling member may be enclosed (refer patent document 1).

  In such a bread maker, the bread material is kneaded with kneading blades to form bread dough, and then the baking process is performed with the kneading blades buried in the bread dough. Therefore, the kneading blade is extracted from the pan after baking, and a hole by the kneading blade is formed from the bottom to the inside of the pan. This hole detracts from the appearance of the bread. Further, when the baked bread is taken out from the bread container, the bread sticks around the kneading blade and is difficult to take out from the bread container, and a part of the bread stuck to the kneading blade is torn off. Sometimes. Such a situation may cause discomfort and stress to the user and may cause burns during removal.

  In order to eliminate the hole by the kneading blade, a kneading blade is provided on the back surface of the upper lid portion of the bread maker main body, and after the kneading step, the kneading blade is moved above the bread dough and then the bread is baked, or at the bottom of the bread container There has been proposed a configuration in which a kneading blade is provided and the bread is baked after the kneading blade is moved below the bread dough just before the baking step.

  In the former configuration, the kneading blade is moved up into the bread material in the bread container by raising the bread container relative to the kneading blade attached to the back surface of the upper lid, and then the bread container is lowered. The kneading blade is pulled out from the dough and the baking process is performed (see Patent Document 2), or the kneading blade attached to the back surface of the upper lid part is lowered with respect to the bread container to allow the kneading blade to enter the bread material and knead. There exists a structure (refer patent document 3) etc. which perform a baking process by raising a kneading | wing blade after that, a kneading | winging blade is pulled out from bread dough.

  On the other hand, as the latter configuration, a configuration is proposed in which the baking process is performed by moving the kneading blades to the space provided below the bread container when the dough before the baking process is completed after the kneading process is completed to some extent. (See Patent Document 4).

JP 2010-246590 A JP-A-10-192151 JP-A-10-179410 JP 2009-125516 A

  In the former configuration, the kneading blades must be moved as far away from the bread dough as possible so that the marks of the kneading blades do not remain on the bread. Taking into account that the bread dough expands upward during the fermentation and baking process, it is necessary to increase the distance between the kneading blade and the bread dough. As a result, the height of the bread maker main body increases, leading to an increase in the main body size. In addition, a part of the bread dough is attached to the kneading blades extracted from the bread dough after the kneading process, and the baking process is performed without returning a part of the attached bread dough into the bread container. It will be useless. Further, in the configuration of Patent Document 2, a motor for raising and lowering the bread container is required in addition to the motor for rotating the kneading blade, which causes an increase in manufacturing cost and body size.

  On the other hand, in the configuration of Patent Document 4, which is the latter configuration example, the kneading blades are rotated and raised / lowered by a single drive mechanism, so the cost and size problems are solved. However, in the case of bread dough that originally has a high water content, the bread dough is soft even immediately before the baking process, and flows into the space below the bread container as the kneading blades are lowered, and this configuration limits the types of bread that can be cooked. In this configuration, the bread material is put into the bread container after the bread container is set in the main body and the kneading blade is attached to the rotating shaft. That is, it is inconvenient for the user because the bread container cannot be set in the main body after the bread material is weighed and put into the bread container at another place such as a work table. Furthermore, a part of the bread dough adheres to the kneading blades that have descended into the space below the bread container, and the above-described problem of waste of materials remains. In addition to the kneading blade, the dough is also attached to a sealing member that is provided in the vicinity of the kneading blade and moves to the lower space together with the kneading blade. End up.

  Further, as described above, parts such as a shaft and a coupling member are assembled in a general bread container, so that it is difficult for a user to clean and care.

  In view of these circumstances, an object of the present invention is to provide a pan having a substantially flat bottom surface with a structure that is relatively easy to clean and clean while suppressing an increase in manufacturing cost and body size, and no holes are formed by kneading blades. It is in providing the bread maker which can manufacture.

  In order to achieve the above object, a bread maker according to an embodiment of the present invention is provided in a bread maker main body, a baking chamber for baking bread, and a bread material are inserted into the baking chamber so as to be detachable. A bread container to be housed, a kneading blade that is detachably attached to the bread container, kneads bread material, a drive unit that rotationally drives the kneading blade, and an elevator that raises the bread container from a kneading position to a baking position The bottom surface of the kneading blade is located above the uppermost position of the bottom surface of the bread container at the kneading position, and the upper surface of the kneading blade is substantially flush with the uppermost position of the bottom surface of the bread container at the baking position. And after the kneading step by the kneading blade is completed at the kneading position, the elevator raises the bread container to the baking position, and the bread container is heated at the baking position. Forming step is carried out.

  In the bread maker, on the bottom surface of the bread container, an opening into which the kneading blade is fitted from above, and extending along the periphery of the opening, an upper surface of the kneading blade and a bottom surface of the bread container A step portion for holding the kneading blades is formed so that the uppermost position of the bread container is substantially on the same plane, and at least one slider extends vertically on the side peripheral surface of the bread container. Good.

  The bread maker further includes a hollow pedestal independent of the bread container, and the step of the bread container is a hollow portion of the pedestal when the bread container is placed on the pedestal. It is good also as a structure located inside.

  In the bread maker, the baking chamber includes a heating device that heats the bread container, at least one guide rail that extends in a vertical direction and engages with the slider of the bread container, and the baking chamber. Provided with a sealing member that fits into the opening of the bread container at the kneading position, and the sealing member has a cross section substantially equal to the shape of the opening on the outside of the bottom of the bread container. It is good also as a structure which has the height more than the distance from the uppermost position of the bottom face of the said bread container to the lowest position.

  Further, in the bread maker, the kneading blades are held in a blade portion for kneading bread material, a shaft portion having a shaft hole portion into which a rotation shaft of the driving portion is fitted, and the step portion of the bread container. Provided in the region of the upper surface portion facing the shaft hole portion, and provided on the upper end of the rotating shaft of the driving portion. A magnetic body having a polarity opposite to that of the body, and the combined portion of the blade portion and the shaft portion has a cross-section substantially equal to the shape of the opening outside the bottom surface of the bread container, and the kneading step is completed It is good also as a structure located inside the said opening part later.

  Further, in the bread maker, the drive unit is fitted to the kneading blade, and a rotating shaft provided with a magnetic body having a polarity opposite to that of the magnetic body provided on the upper surface portion of the kneading blade. A drive motor that rotates in two directions, a first pulley connected to one output shaft of the drive motor, a second pulley connected to a lower end of the rotation shaft, and the first and second pulleys An endless belt stretched between the first output shaft and the first pulley. The first one-way clutch is interposed between the first pulley and the first pulley. When the drive motor rotates in one direction, the first When the drive of the drive motor is transmitted to the first pulley by the one-way clutch and the rotating shaft rotates and the drive motor rotates in the other direction, the transmission of the drive is blocked by the first one-way clutch. It may be configured that.

  In the bread maker, the elevator includes a screw shaft connected to the other output shaft of the drive motor, a nut screwed to the screw shaft, one end connected to the nut, and the other end connected to the nut. A support member disposed in the baking chamber, a bottom plate fixed to the support member and on which the bread container is placed, and a second interposed between the other output shaft of the drive motor and the screw shaft. A one-way clutch is provided, and when the drive motor rotates in the other direction, the drive of the drive motor is transmitted to the screw shaft by the second one-way clutch, the bottom plate rises, and the drive motor rotates in the one direction Then, the drive transmission may be blocked by the second one-way clutch.

  In the bread maker, the bottom surface of the bread container is provided with an opening from above that fits the kneading blade, and extends along the periphery of the opening. The top surface of the kneading blade and the bread container A step portion for holding the kneading blade is formed so that the uppermost position of the bottom surface of the base plate is substantially on the same plane, a hollow pedestal is fixed, and the step portion is positioned inside the hollow portion of the pedestal. And at least 1 linear convex part is good also as a structure extended in the orthogonal | vertical direction on the internal peripheral surface of the said base.

  Further, in the bread maker, a groove portion into which the pedestal of the bread container is fitted is formed on a bottom surface of the baking chamber, and an inner peripheral surface of the groove portion is engaged with the convex portion of the pedestal. At least one linear recess extends in the vertical direction, and the baking chamber is provided inside the groove on the bottom of the baking chamber and a heating device that heats the bread container. A sealing member that fits into the opening of the container, and the sealing member has a cross section that is substantially equal to the shape of the opening on the outside of the bottom surface of the bread container, and is located at the top of the bottom surface of the bread container. It is good also as a structure with the height more than the distance to a lower position.

  According to the present invention, since the uppermost position of the upper surface of the kneading blade and the bottom surface of the bread container are located on the same plane in the baking step, no hole is formed in the baked bread by the kneading blade, and the substantially flat bottom surface is formed. Can provide bread with. Therefore, the appearance of the bread is not impaired, and the bread can be easily taken out from the bread container.

  In addition, since the two operations of rotating the kneading blade and raising the bread container are performed by a single drive motor, it is possible to suppress an increase in manufacturing cost and body size as compared with a case where a lifting motor is separately provided. .

  Moreover, the bread dough adhering to the circumference | surroundings of the kneading | wing blade during the kneading | mixing process is returned in a bread container because the bottom face of a bread container raises to a baking position along the side peripheral surface of a kneading | wing blade after a kneading | mixing process. That is, in the ascending process of the bread container, the bread dough attached around the kneading blade is scraped off by the opening of the bread container and returned to the bread container. Therefore, compared to a configuration in which the baking process is performed with a portion of the bread dough adhered to the kneading blades extracted from the bread dough, there is almost no waste of material.

  Further, since there are no parts such as a shaft and a coupling member assembled in a general bread container, the bread container can be easily cleaned and maintained. Further, since there are no parts such as a shaft and a coupling member, an increase in manufacturing cost and body size can be suppressed.

FIG. 1 is a longitudinal sectional view of a bread maker according to a first embodiment of the present invention. FIG. 2 is an explanatory view of the firing chamber of the first embodiment, FIG. 2 (a) is a plan view of the firing chamber, and FIG. 2 (b) is a view along the line AA in FIG. 2 (a). It is a longitudinal cross-sectional view of a chamber. 3A and 3B are explanatory views of the bread container according to the first embodiment, in which FIG. 3A is a plan view of the bread container, and FIG. 3B is a bread along line BB in FIG. It is a longitudinal cross-sectional view of a container. FIG. 4 is a perspective view of the kneading blade of the first embodiment. FIG. 5 is an enlarged cross-sectional view of a main part showing a mounting state of the bread container in the bread maker of the first embodiment. FIG. 6 is a flowchart showing a bread making process of the bread maker according to the first embodiment. FIG. 7 is a longitudinal sectional view of a bread maker according to the second embodiment of the present invention. FIG. 8 is a plan view of the pedestal of the bread container and the central portion of the bottom surface of the baking chamber of the second embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The following drawings are schematic for easy understanding, and dimensional ratios and the like on the drawings do not necessarily match actual ones.

(First embodiment)
First, the configuration of the bread maker according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 5.

(Breadmaking machine configuration)
FIG. 1 is a longitudinal sectional view of a bread maker according to a first embodiment of the present invention. As shown in FIG. 1, the bread maker according to the first embodiment of the present invention includes a main body 1, a bread container 2, a kneading blade 3, a baking chamber 4, a drive unit 5, an operation unit 6, an elevator 7, and a control unit 8. Have.

  The main body 1 has an upper lid portion 1a, an outer wall portion 1b, and an inner wall portion 1c. The upper lid portion 1a is attached to the upper end of the outer wall portion 1b on the back side (right side in FIG. 1) of the main body 1 through a hinge mechanism (not shown) so as to be opened and closed. A space surrounded by the upper lid portion 1a and the inner wall portion 1c forms a firing chamber 4. In the baking chamber 4, the bread container 2 equipped with the kneading blades 3 is detachably accommodated. The drive unit 5 is disposed in a space between the bottom surface of the inner wall portion 1c and the bottom surface of the outer wall portion 1b. An elevator 7 is disposed in a space between the inner wall 1c and the outer wall 1b on the front side of the main body 1 (left side in FIG. 1). An operation unit 6 is provided above the outer wall 1b on the front side of the main body 1, and a control unit 8 is disposed below the operation unit 6.

  As shown in FIGS. 2 (a) and 2 (b), a heater 4 a for heating the bread container 2 is disposed on the inner wall of the baking chamber 4 so as to surround the bread container 2, and to the main body 1 of the bread container 2. A guide rail 4c that guides the mounting of the motor is extended in the vertical direction. A sealing member 4b made of a material such as an elastic resin is provided on the bottom surface of the baking chamber 4, and the rotation shaft of the driving unit 5 is formed through an opening formed on the bottom surface of the baking chamber 4 and an opening formed in the sealing member 4b. 5a protrudes upward. The opening at the bottom of the baking chamber 4, the opening of the seal member 4b, and the transverse section of the rotating shaft 5a of the drive unit 5 are formed in substantially the same circular shape. The seal member 4b has a cross section substantially equal to the shape of an opening 2c (see FIG. 3B) outside the bottom surface of the bread container 2 to be described later. When the bread container 2 is attached to the baking chamber 4, the seal member 4b The member 4b is fitted into the opening 2c. The function of the seal member 4b will be described later. In the firing chamber 4, a part of the support member 7a of the elevator 7 and a bottom plate 7b fixed to the support member 7a are accommodated.

  In the baking chamber 4 configured as described above, the bread container 2 is detachably accommodated. As shown in FIGS. 3A and 3B, the bread container 2 formed of a metal such as an aluminum alloy has a handle 2a, a slider 2b, an opening 2c, and a step 2d. An upper surface of the bread container 2 is opened, and a handle 2 a that a user holds when carrying the bread container 2 is rotatably attached to the upper edge of the bread container 2.

  A slider 2 b that slides on a guide rail 4 c provided on the inner wall of the baking chamber 4 extends in the vertical direction on the side peripheral surface of the bread container 2. By sliding the slider 2b with respect to the guide rail 4c, the bread container 2 can be smoothly attached to the main body 1, and as shown in FIG. 1, the kneading blade 3 attached to the bread container 2 and the baking chamber. The bread container 2 is properly aligned with the baking chamber 4 so that the four seal members 4b overlap in the vertical direction and the rotating shaft 5a is fitted to the kneading blade 3. The slider 2b and the guide rail 4c also have a function of fixing the bread container 2 so that the bread container 2 does not wobble due to the rotation of the kneading blade 3 during the kneading process by engaging with each other. In order to stably fix the bread container 2, it is preferable to provide a plurality of sliders 2b and guide rails 4c. In this embodiment, as an example, two sliders 2b and two guide rails 4c are provided at opposing positions. In this embodiment, the slider 2b and the guide rail 4c have a convex shape and a concave shape, respectively, but may be a combination of a concave shape and a convex shape.

  Moreover, the opening part 2c by which the kneading | mixing blade | wing 3 is detachably mounted is provided in the bottom face of the bread container 2, and the upper surface part 3a (refer FIG. 4) of the kneading | mixing blade | wing 3 is hold | maintained around the opening part 2c. A step 2d is formed. Therefore, as shown in FIG. 3 (b), the uppermost position (corresponding to U in FIG. 5) of the upper surface of the kneading blade 3 (shown by a broken line) attached to the bread container 2 and the bottom surface of the bread container 2 is substantially on the same plane. become. Since the baking process is performed in this state, a hole with the kneading blade 3 is not formed in the bottom of the baked bread, and a bread having a substantially flat bottom surface can be provided. In order to improve the releasability of the bread, the inner surface of the bread container 2 may be subjected to fluororesin processing or the like.

  As shown in FIG. 3B, the bottom surface of the kneading blade 3 is positioned below the bottom surface of the bread container 2 in a state where the kneading blade 3 is attached to the bread container 2. Therefore, when the user performs an operation of putting bread material into the bread container 2 on the work table or the like, the bread container 2 is placed on the hollow base 2e prepared separately from the bread container 2. . The pedestal 2e is formed, for example, in a cylindrical shape, the step 2d of the bread container 2 that holds the kneading blade 3 is located inside the hollow portion of the pedestal 2e, and the uppermost position of the upper surface of the kneading blade 3 and the bottom surface of the bread container 2 is It is comprised so that the bread container 2 may be supported in the state which becomes substantially the same plane. The pedestal 2e is used on a workbench or the like and is not accommodated in the baking chamber 4, so that heat resistance is not particularly required and may be formed of a material such as plastic. Moreover, in this embodiment, although the base 2e is made into the cylindrical shape, the shape of the base 2e is not restricted to this. For example, the step 2d of the bread container 2 is positioned inside the hollow portion, and the bread container 2 is stably mounted in a state where the upper surface of the kneading blade 3 and the uppermost position of the bottom surface of the bread container 2 are substantially on the same plane. Other shapes may be used as long as they can be placed.

  The kneading blade 3 is formed of a metal such as an aluminum alloy, and as shown in FIG. 4, an upper surface portion 3 a held by the step portion 2 d of the bread container 2, a blade portion 3 c for kneading bread material, and a rotating shaft of the driving portion 5. It has a shaft portion 3d having a shaft hole portion 3e into which 5a is fitted, a seal film 3b, and a bottom surface portion 3g. The blade portion 3c and the shaft portion 3d are integrally formed, and the portion where the blade portion 3c and the shaft portion 3d are combined is an opening on the outside of the bottom surface of the bread container 2 in the same manner as the sealing member 4b of the baking chamber 4 described above. It has a cross section substantially equal to the shape of 2c. The side peripheral surface of the upper surface portion 3a is covered with a seal film 3b made of a material such as elastic resin. Thereby, in the state where the kneading blade 3 is attached to the bread container 2, the hermeticity is maintained, and it is possible to prevent the bread material or the dough from leaking out from the bread container 2. The side peripheral surfaces of the blade portion 3c and the shaft portion 3d may be similarly covered with a seal film made of an elastic material. Thereby, when the bread container 2 is lowered with respect to the kneading blade 3 when the bread container 2 is mounted on the main body 1, and when the bread container 2 is raised with respect to the kneading blade 3 when moved to the baking position described later. That is, when the bread container 2 moves in the vertical direction along the side peripheral surfaces of the blade part 3c and the shaft part 3d, the sealing property between the bread container 2 and the kneading blade 3 can be maintained.

  The shaft hole portion 3e has a substantially D-shaped cross section, and engages with the upper portion of the rotating shaft 5a having a similar D-shaped cross section. Further, a magnetic body 3f is provided in the region of the upper surface portion 3a facing the shaft hole portion 3e. The magnetic body 3f has a polarity opposite to that of the magnetic body 5b provided at the upper end of the rotating shaft 5a shown in FIG. 5, and the magnetic body 5b and the magnetic body 3f are attracted to each other, so that the bread container 2 is attached to the main body 1. Sometimes, the kneading blade 3 and the rotating shaft 5a are reliably engaged, and the kneading blade 3 can be prevented from being detached from the rotating shaft 5a during the kneading step.

  In the present embodiment, the cross section of the upper portion of the shaft hole portion 3e and the rotation shaft 5a corresponding to the shaft hole portion 3e is substantially D-shaped, but other shapes may be used. For example, as long as the upper part of the shaft hole 3e and the upper part of the rotating shaft 5a have substantially equal cross sections that can be engaged with each other, the shape may be other than the D shape. In the example shown in FIG. 4, the blade portion 3 c is formed in a curved surface curved in the rotation direction of the kneading blade 3, but the shape of the blade portion 3 c is not limited to this. For example, the blade portion 3c can be formed in a flat shape, or can be formed in a shape formed of a plurality of flat surfaces and curved in the rotational direction of the kneading blade 3. In that case, the shapes of the upper surface portion 3a of the kneading blade 3, the sealing member 4b of the baking chamber 4, the opening portion 2c of the bread container 2 and the like are adjusted according to the shape of the blade portion 3c.

  FIG. 5 shows a mounting state of the bread container 2 in the main body 1. In the mounted state, the rotating shaft 5a is fitted into the shaft hole 3e of the kneading blade 3 through the opening of the baking chamber 4 and the opening of the seal member 4b, and the magnetic body 5b at the upper end of the rotating shaft 5a and the magnetism of the kneading blade 3 are fitted. The body 3f is adsorbed to each other by the action of magnetic force. In addition, a slight gap is provided between the bottom surface portion 3g of the kneading blade 3 and the sealing member 4b so that the kneading blade 3 can rotate well without contacting the sealing member 4b. In order to minimize the amount of bread material and dough entering between the kneading blade 3 and the seal member 4b, it is desirable to make the gap as narrow as possible. In the following description, the position of the bread container 2 indicated by a solid line in FIG. 5 is referred to as a mounting position or a kneading position, and the position of the bread container 2 indicated by a broken line is referred to as a baking position. That is, the bread container 2 is mounted at the position indicated by the solid line, and after the kneading process is performed at this position, the bread container 2 is moved to the position indicated by the broken line and the baking process is performed.

  When the bread container 2 is lowered to the mounting position or raised to the baking position, the sealing member 4b allows the bottom surface of the bread container 2 to pass through the space between the bottom surface portion 3g of the kneading blade 3 and the bottom surface of the baking chamber 4. When moving in the vertical direction, it serves to prevent the bread ingredients and dough in the bread container 2 from leaking out. As shown in FIG. 5, in order to rotate the kneading blade 3 without contacting the bottom surface of the bread container 2 having the step 2d in the kneading step, the kneading blade 3 is above the uppermost position U on the bottom surface of the bread container 2. Must be located in Considering the gap provided between the bottom surface portion 3g of the kneading blade 3 and the seal member 4b, the height of the seal member 4b is more than the distance from the uppermost position U to the lowermost position L of the bottom surface of the bread container 2. You only have to set it. FIG. 5 shows a case where the height of the seal member 4b is equal to the distance from the uppermost position U to the lowermost position L of the bottom surface of the bread container 2.

  Returning to FIG. 1, the drive unit 5 is provided below the bottom surface of the inner wall 1c, and includes a rotating shaft 5a, a drive motor 5c, a first pulley 5d, a second pulley 5e, an endless belt 5f, and a first one-way clutch (not shown). )). One output shaft of the drive motor 5c is provided with a first pulley 5d via a first one-way clutch, and an endless belt 5f is stretched between the first pulley 5d and the second pulley 5e. When the drive motor 5c is rotationally driven in one direction, the rotational drive of the drive motor 5c is transmitted to the rotary shaft 5a via the first one-way clutch, the first pulley 5d, the endless belt 5f, and the second pulley 5e, and the rotary shaft 5a. Rotates. Along with this, the kneading blade 3 connected to the rotating shaft 5a rotates and a kneading operation is performed. On the other hand, when the motor 5c is rotated in the other direction opposite to the one direction, the kneading blade 3 does not rotate because the first one-way clutch blocks the transmission of the rotational drive.

  As shown in FIG. 1, the elevator 7 is provided between an inner wall 1c and an outer wall 1b on the front side of the main body 1, and includes a support member 7a, a bottom plate 7b, a screw shaft 7c, a nut 7d, a second one-way clutch (see FIG. 1). Not shown). The elevator 7 is for raising the bread container 2 from the kneading position to the baking position after the kneading step. In FIG. 1, the bread container 2 and the elevator 7 at the kneading position are indicated by solid lines, and the bread container 2 and the elevator 7 at the baking position are indicated by broken lines. As shown in FIG. 1, at the baking position, the uppermost position of the bottom surface of the bread container 2 and the upper surface of the kneading blade 3 are located on substantially the same plane.

  As shown in FIGS. 1 and 2A, a part of the support member 7a is disposed in the baking chamber 4 through a slit 4d formed in a direction perpendicular to the inner wall 1c. The length of the slit 4d is set to be equal to or longer than the distance from the kneading position to the firing position.

  One side of the bottom plate 7b on which the bread container 2 is placed is fixed to one end of the support member 7a. In the present embodiment, as shown in FIG. 2 (a), the bottom plate 7b is formed in a substantially U shape, and the step 2d of the bread container 2 is positioned inside the central opening. Yes. However, the shape of the bottom plate 7b is not limited to this. For example, you may comprise a hollow disk shape or a rectangle so that the step part 2d of the bread container 2 may be located inside a hollow part.

  A nut 7d is attached to the other end of the support member 7a. The nut 7d is screwed with the screw shaft 7c, and the screw shaft 7c is attached to the other output shaft of the drive motor 5c via the second one-way clutch. When the drive motor 5c of the drive unit 5 rotates in the other direction, the screw shaft 7c rotates, and the nut 7d that engages with the screw shaft 7c moves upward to raise the support member 7a and the bottom plate 7b. On the other hand, when the drive motor 5c rotates in the one direction, transmission of the rotational drive of the drive motor 5c to the screw shaft 7c is interrupted by the second one-way clutch, so that the support member 7a and the bottom plate 7b do not rise. That is, when the drive motor 5c is rotated in one direction, the kneading blade 3 is rotated, and when the drive motor 5c is rotated in the other direction, the bottom plate 7b of the elevator 7 is raised. With this configuration, two different operations of rotating the kneading blade 3 and raising the elevator 7 are performed by one drive motor 5c. Therefore, an increase in manufacturing cost and body size can be suppressed as compared with a configuration in which motors for rotating the kneading blades and for raising the elevator are separately provided.

  The elevator 7 is lowered by the user pushing down the bottom plate 7b by hand when the bread container 2 is mounted on the main body 1. The descending distance of the bottom plate 7b, that is, the distance from the baking position of the bread container 2 to the kneading position is substantially the same as the height of the shaft portion 3d of the kneading blade 3, as shown in FIG. The elevator 7 can be lowered by hand relatively easily. Therefore, the lowering operation of the elevator 7 by the bread maker is not particularly necessary.

  Returning to FIG. 1, the operation unit 6 includes an operation panel and a display panel (not shown). The operation panel includes a plurality of operation buttons (not shown) including a start button, various selection buttons for selecting the type of bread, cooking course, cooking time, etc., and a cancel button for canceling the selection contents. ) Is provided. The selection contents and various messages are displayed on the display panel. Based on an instruction input to the operation panel by the user, the control unit 8 controls various operations including kneading and baking.

(Bread making process of bread machine)
Next, the bread making process of the bread maker of this embodiment is demonstrated. As shown in FIG. 6, the bread making process of the bread maker of the present embodiment includes mounting the bread container 2 to the main body 1 (step S01), a kneading process (step S02), a primary fermentation process (step S03), and kneading. The process (step S04), the raising of the bread container 2 (step S05), the final fermentation process (step S06), and the baking process (step S07) are included. Only step S01 is performed by the user, and steps S02 to S07 are performed by the bread maker of the present embodiment.

  In step S01, as shown in FIG. 3B, first, the user places the hollow base 2e on the work table or the like, and places the bread container 2 on the base 2e. Then, the kneading blade 3 is attached to the opening 2c from above. In this state, bread materials such as water, flour, salt and yeast are put into the bread container 2. Next, it is confirmed that the bottom plate 7 b of the elevator 7 is in contact with the bottom surface of the firing chamber 4. If the bottom plate 7b is located above the bottom surface of the firing chamber 4, the bottom plate 7b is pushed down to the bottom surface of the firing chamber 4 by hand. Thereafter, the bread container 2 is mounted in the main body 1. At this time, the rotary shaft 5a is fitted to the kneading blade 3 attached to the opening 2c of the bread container 2 while sliding the slider 2b provided on the side peripheral surface of the bread container 2 with respect to the guide rail 4c of the baking chamber 4. Lower the bread container 2 so that it matches. After the bread container 2 is mounted at the mounting position, the upper lid 1a is closed and the operation button of the operation unit 6 is operated to select a desired cooking course or the like.

  In order to inform the user of the situation when the bottom plate 7b is located above the bottom surface of the baking chamber 4 when the bread container 2 is mounted, or when the bread container 2 is not mounted at the correct mounting position, It is good also as a structure which detects the position of the baseplate 7b and the bread container 2 with a sensor, and emits a notification sound according to a detection result. In this embodiment, the bread container 2 is attached to the main body 1 after the bread material is added to the bread container 2 outside the main body 1, but the material is input after the bread container 2 is attached to the main body 1. May be. Furthermore, in the present embodiment, the bottom plate 7b is brought into contact with the bottom surface of the baking chamber 4, but the bottom plate 7b is located between the bottom surface of the bread container 2 and the bottom surface of the baking chamber 4 at the mounting position. It is not always necessary to contact the bottom surface of the baking chamber 4.

  Next, in accordance with an instruction from the control unit 8 based on the input to the operation unit 6, a kneading process using the drive unit 5 and the kneading blade 3 is performed (step S02). First, the drive motor 5c of the drive unit 5 is rotationally driven in one direction. Thus, the kneading blade 3 rotates the drive motor 5c via the first one-way clutch, the first pulley 5d, the endless belt 5f, the second pulley 5e, and the rotation shaft 5a attached to one output shaft of the drive motor 5c. And the kneading blade 3 rotates. The bread material is kneaded by the rotation of the kneading blade 3, and bread dough is formed from the bread material. When the predetermined kneading time has elapsed, the rotation of the kneading blade 3 is stopped, and the kneading process is completed.

  Next, the heater 4a is energized, and the inside of the baking chamber 4 is kept at a predetermined temperature based on the measured value of a temperature sensor (not shown) provided in the main body 1 to perform the primary fermentation process (step S03).

  After a predetermined fermentation time has elapsed, the process proceeds to the kneading step in step S04. The mechanism of the kneading operation in step S04 is basically the same as the kneading operation in step S02, but the kneading process in step S02 is mainly for kneading bread material, whereas the kneading process in step S04 is performed after kneading. The main purpose is to degas the dough, and the kneading time and speed are different from those in step S02. When a predetermined kneading time elapses, the kneading blade 3 stops at a predetermined position, and the kneading process ends.

  Thereafter, the bread container 2 is raised to the baking position indicated by the broken line in FIG. 1 (step S05), and the final fermentation process is performed (step S06). The kneading step and the fermentation step may be repeated as appropriate depending on the type of bread. For example, the fermentation process may be repeated by returning to step S03 after step S04.

  In step S05, the elevator 7 raises the bread container 2 to the baking position. First, based on an instruction from the control device 8, the motor 5c of the drive unit 5 rotates in the other direction opposite to the one direction. As a result, the screw shaft 7c connected to the other output shaft of the motor 5c rotates via the second one-way clutch, and the nut 7d that engages with the screw shaft 7c moves upward, and the support member 7a and the bottom plate 7b rise. . And the elevator 7 stops when the bread container 2 raises to the baking position, that is, the uppermost position of the upper surface of the kneading blade 3 and the bottom surface of the bread container 2 is substantially on the same plane. The kneading blade 3 is set to stop at a predetermined position in step S04. The predetermined position referred to here is a position where the kneading blade 3 is located inside the opening 2c of the bread container 2 and overlaps the seal member 4b in the vertical direction. For example, the control unit 8 controls the operation so that the kneading blade 3 stops at a predetermined position using a position sensor or the like. By setting the stop position in advance in this way, in step S05, only the bread container 2 rises without raising the kneading blade 3 as the bread container 2 rises.

  In step S06, as in the primary fermentation process in step S03, the final fermentation process is performed by energizing the heater 4a and maintaining the inside of the baking chamber 4 at a predetermined temperature. And after predetermined fermentation time passes, it transfers to a baking process (step S07).

  In step S07, the bread container 2 is heated at a predetermined temperature by the heater 4a. And when predetermined | prescribed baking time passes, electricity supply of the heater 4a will stop and a baking process will be complete | finished.

  When the bread is baked through the above steps, the user takes out the bread container 2 from the main body 1 and takes out the bread from the bread container 2 on a work table or the like. At this time, the kneading blade 3 is not buried inside the pan, and the upper surface of the kneading blade 3 is substantially flush with the uppermost position of the bottom surface of the bread container 2, so that no hole is formed by the kneading blade 3 at the bottom of the pan. Accordingly, it is possible to provide a bread having a substantially flat bottom surface and a good appearance, and to easily take out the bread from the bread container 2. In order to further improve the releasability of the bread, the upper surface portion 3a of the kneading blade 3 may be subjected to fluororesin processing or the like.

  As described above, according to the bread maker of the present embodiment having the above-described configuration, it is possible to provide a bread having a good appearance with a substantially flat bottom surface without forming a hole by a kneading blade on the bottom of the bread, Bread can be easily taken out from the bread container 2.

  In addition, according to the bread maker of the present embodiment, the two operations of rotating the kneading blade 3 and raising the bread container 2 are performed by one drive motor 5c. Therefore, it is possible to suppress an increase in manufacturing cost and main body size as compared with a case where a lifting motor is separately provided.

  Moreover, the bottom of the bread container 2 rises to the upper surface part 3a of the kneading blade 3 along the side peripheral surface of the kneading blade 3 after the kneading step, so that the bread dough adhered to the periphery of the kneading blade 3 during the kneading step Returned to 2. That is, in the ascending process of the bread container 2, the bread dough adhered to the periphery of the shaft portion 3 d and the blade portion 3 c of the kneading blade 3 is scraped off by the opening 2 c of the bread container 2 and returned to the bread container 2. Therefore, there is almost no waste of material.

  Moreover, in a general bread container, components, such as a shaft, a coupling member, and a base, are assembled | attached, but the bread container 2 of this embodiment does not provide such components. Therefore, the bread container 2 can be easily cleaned and maintained, and an increase in manufacturing cost and body size can be suppressed.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In addition, the same reference number is attached | subjected to the same member as 1st Embodiment, the overlapping description is abbreviate | omitted, and a structure different from 1st Embodiment is demonstrated.

  FIG. 7 is a longitudinal sectional view of a bread maker according to the second embodiment of the present invention. FIG. 8 is a plan view of the pedestal of the bread container and the central portion of the bottom surface of the baking chamber of the second embodiment. The difference between this embodiment and 1st Embodiment exists in the structure of the bread container 200 and the baking chamber 40. FIG.

  In the bread container 200 of the present embodiment, a hollow pedestal 200e corresponding to the pedestal 2e of the first embodiment is fixed to the bottom surface of the bread container 200. Thereby, the bread container 200 is stably placed on a work table or the like. Similar to the pedestal 2e of the first embodiment, the pedestal 200e is formed in, for example, a cylindrical shape, and is configured such that the step 2d of the bread container 200 that holds the kneading blades 3 is positioned inside the hollow portion of the pedestal 200e. . Since the pedestal 200e is fixed to the bread container 200, it is accommodated in the baking chamber 40 together with the bread container 200, and is heated by the heater 4a. Therefore, the pedestal 200e is formed of a heat-resistant metal such as an aluminum alloy. Further, the pedestal 200e of this embodiment is formed in a cylindrical shape, but the step 2d of the bread container 200 is located inside the hollow portion, and the uppermost position of the upper surface of the kneading blade 3 and the bottom surface of the bread container 200 is Any other shape may be used as long as it can stably support the bread container 200 in a state of being located on substantially the same plane.

  As shown in FIG. 8, a linear convex portion 200b extends in the vertical direction on the inner peripheral surface of the pedestal 200e, and this convex portion 200b is provided in the central portion 40e of the bottom surface of the firing chamber 40 described later. Engages with the linear recess 40f. Since the convex part 200b slides in the vertical direction with respect to the concave part 40f, the bread container 200 is smoothly attached to the main body 1. In addition, by engaging the convex portion 200b and the concave portion 40f, it is possible to prevent the bread container 200 from wobbling due to the rotation of the kneading blade 3 during the kneading step. In order to stably fix the bread container 2, it is preferable to provide a plurality of convex portions 200b and concave portions 40f. In this embodiment, as an example, four convex portions 200b and four concave portions 40f are provided at regular intervals.

  In the baking chamber 40 of this embodiment, the area | region of the bottom face of the baking chamber 40 corresponding to the inner part of the base 200e of the said bread container 200 is formed as the center part 40e. The central portion 40e is formed in a cylindrical shape, for example, and engages with the pedestal 200e. As described above, the linear concave portion 40f that engages with the linear convex portion 200b of the base 200e extends in the vertical direction on the side peripheral surface of the central portion 40e. Further, a seal member 4b is provided in the central portion 40e, and an opening formed in the bottom surface of the baking chamber 40 and an opening formed in the seal member 4b are provided, as in the first embodiment shown in FIG. The rotating shaft 5a of the drive part 5 protrudes upwards through.

  As shown in FIG. 7, the central portion 40e is defined by a groove portion 40g. In a state where the bread container 200 is mounted on the main body 1, the bottom surface of the base 200e of the bread container 200 is in contact with the bottom surface of the groove portion 40g.

  In the present embodiment configured as described above, the convex portion 200b of the pedestal 200e and the concave portion 40f of the central portion 40e function as the slider 2b and the guide rail 4c of the first embodiment, respectively. Therefore, in this embodiment, the slider 2b and the guide rail 4c of the first embodiment are not provided, but the mounting of the bread container 200 to the main body 1 is made smoother and the wobbling of the bread container 200 during the kneading process is further suppressed. Therefore, the slider 2b and the guide rail 4c may be added. The configuration of this embodiment is the same as that of the first embodiment described above, except for the bread container 200 and the baking chamber 40. Further, the bread making procedure is the same as that of the first embodiment described above.

  Further, in the present embodiment, the pedestal 200e is cylindrical, but the shape of the pedestal 200e is not limited to this as in the first embodiment, and the step 2d of the bread container 200 is located inside the hollow portion, and kneading is performed. Any other shape may be used as long as it can stably support the bread container 200 with the uppermost position of the upper surface of the blade 3 and the bottom surface of the bread container 200 located on substantially the same plane. Similarly, the shape of the central portion 40e on the bottom surface of the baking chamber 40 is not limited to the cylindrical shape, and may be configured in other shapes according to the shape of the base 200e of the bread container 200. In the present embodiment, the convex portion is formed on the pedestal 200e and the concave portion is formed on the central portion 40e. However, the concave portion may be formed on the pedestal 200e and the convex portion may be formed on the central portion 40e.

  According to the bread maker of the present embodiment configured as described above, the same effects as those described in the first embodiment can be obtained. In the present embodiment, unlike the first embodiment, the pedestal 200e is assembled to the bread container 2, but other parts such as a shaft and a coupling material are not included, and thus such parts are assembled. Compared to a general bread container, the bread container 200 is easy to clean and care, and can suppress an increase in manufacturing cost and body size.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are made based on the ordinary knowledge of those skilled in the art without departing from the gist of the present invention. Can be implemented.

DESCRIPTION OF SYMBOLS 1 ... Main body 1a ... Upper cover part 1b ... Outer wall part 1c ... Inner wall part 2 ... Bread container 2a ... Handle 2b ... Slider 2c ... Opening part 2d ... Step part 2e ... Base 3 ... Kneading blade 3a ... Upper surface part 3b ... Seal film 3c ... Blade part 3d ... Shaft part 3e ... Shaft hole part 3f ... Magnetic body 3g ... Bottom face part 4 ... Firing chamber 4a ... Heater 4b ... Seal member 4c ... Guide rail 4d ... Slit 5 ... Drive part 5a ... Rotating shaft 5b ... Magnetic body 5c ... drive motor 5d ... first pulley 5e ... second pulley 5f ... endless belt 6 ... operation part 7 ... elevator 7a ... support member 7b ... bottom plate 7c ... screw shaft 7d ... nut 8 ... control part 200 ... bread container 200b ... convex part 200e ... pedestal 40 ... firing chamber 40e ... central portion 40f ... concave portion 40g ... groove portion

Claims (9)

A baking chamber provided in the bread maker body for baking bread;
A bread container in which bread ingredients are charged and detachably accommodated in the baking chamber;
A kneading blade that is detachably attached to the bread container and kneads the bread material;
A drive unit for rotationally driving the kneading blade;
An elevator for raising the bread container from a kneading position to a baking position;
At the kneading position, the bottom surface of the kneading blade is positioned above the uppermost position of the bottom surface of the bread container, and at the baking position, the upper surface of the kneading blade is positioned substantially flush with the uppermost position of the bottom surface of the bread container. ,
After the kneading process by the kneading blades is completed at the kneading position, the elevator raises the bread container to the baking position, and the baking container is heated at the baking position to perform the baking process. An opening for fitting the kneading blade from above and a periphery of the opening are provided on the bottom surface of the bread container, and the uppermost position of the upper surface of the kneading blade and the bottom surface of the bread container is substantially the same. A step portion for holding the kneading blade is formed so as to be located on a plane,
The bread maker according to claim 1, wherein at least one slider extends in a vertical direction on a side peripheral surface of the bread container. Further comprising a hollow pedestal independent from the bread container,
The bread maker according to claim 2, wherein the step portion of the bread container is located inside a hollow portion of the base in a state where the bread container is placed on the base. The firing chamber is
A heating device for heating the bread container;
At least one guide rail extending vertically and engaging the slider of the bread container;
Provided on the bottom surface of the baking chamber, comprising a seal member that fits into the opening of the bread container at the kneading position;
The seal member has a cross section substantially equal to the shape of the opening outside the bottom surface of the bread container, and has a height equal to or greater than the distance from the uppermost position to the lowest position of the bottom surface of the bread container. 2. A bread maker according to 2. The kneading blade is
A blade part for kneading bread ingredients;
A shaft portion having a shaft hole portion into which the rotation shaft of the drive portion is fitted; and
An upper surface portion held by the step portion of the bread container;
A sealing film covering a side peripheral surface of the upper surface portion;
A magnetic body provided in a region of the upper surface portion facing the shaft hole portion, and having a polarity opposite to that of the magnetic body provided at an upper end of the rotation shaft of the drive unit;
The combined portion of the blade portion and the shaft portion has a cross section substantially equal to the shape of the opening on the outside of the bottom surface of the bread container, and is located inside the opening after the kneading step. 2. A bread maker according to 2. The drive unit is
A rotating shaft provided at the upper end with a magnetic body having a polarity opposite to that of the magnetic body provided on the upper surface portion of the kneading blade while being fitted to the kneading blade,
A drive motor that rotates in two directions;
A first pulley connected to one output shaft of the drive motor;
A second pulley connected to the lower end of the rotating shaft;
An endless belt stretched around the first and second pulleys;
A first one-way clutch interposed between the one output shaft of the drive motor and the first pulley;
When the drive motor rotates in one direction, the drive of the drive motor is transmitted to the first pulley by the first one-way clutch, the rotation shaft rotates, and when the drive motor rotates in the other direction, the first The bread maker according to claim 1, wherein transmission of the drive is interrupted by a one-way clutch. The elevator is
A screw shaft connected to the other output shaft of the drive motor;
A nut screwed onto the screw shaft;
A support member having one end connected to the nut and the other end disposed in the firing chamber;
A bottom plate fixed to the support member and on which the bread container is placed;
A second one-way clutch interposed between the other output shaft of the drive motor and the screw shaft;
When the drive motor rotates in the other direction, the drive of the drive motor is transmitted to the screw shaft by the second one-way clutch, the bottom plate rises, and when the drive motor rotates in the one direction, the second The bread maker according to claim 6, wherein transmission of the drive is interrupted by a one-way clutch. An opening for fitting the kneading blade from above and a periphery of the opening are provided on the bottom surface of the bread container, and the uppermost position of the upper surface of the kneading blade and the bottom surface of the bread container is substantially the same. A step portion for holding the kneading blade is formed so as to be located on a plane, and a hollow pedestal is fixed,
2. The bread maker according to claim 1, wherein the step is positioned inside a hollow portion of the pedestal, and at least one linear convex portion extends in a vertical direction on an inner peripheral surface of the pedestal. . A groove portion into which the pedestal of the bread container is fitted is formed on the bottom surface of the baking chamber, and at least one linear concave portion that engages with the convex portion of the pedestal is formed on the inner peripheral surface of the groove portion. Extending vertically,
The firing chamber is
A heating device for heating the bread container;
A seal member that is provided inside the groove on the bottom surface of the baking chamber and fits into the opening of the bread container at the kneading position;
The seal member has a cross section substantially equal to the shape of the opening outside the bottom surface of the bread container, and has a height equal to or greater than the distance from the uppermost position to the lowest position of the bottom surface of the bread container. 8. A bread maker according to 8.