JP2013000513A - Electrothermal cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electrothermal cooker capable of surely supporting an electrothermal heater on the bottom face of a casing.SOLUTION: A hanging part 32 of a heater support 30 includes a slit 33 opened sideways to enter along a direction parallel with a base 31 of the heater support 30. A bottom member 50 includes an insertion hole 52 for inserting the hanging part 32 of the heater support 30 and rotating the heater support 30 inserting the hanging part 32 therein, along the upper face of the bottom member 50; an insertion part 53 inserted into the slit 33 with the rotation of the heater support 30; and a stop part for stopping the hanging part 32 to stop the rotation of the heater support 30. An outer peripheral member 60 includes a pressing part 63 holding, between itself and the stop part, the hanging part 32 of the heater support 30 in a state of being stopped by the stop part of the bottom member 50 in a state of the outer peripheral member 60 being fixed to the bottom member 50.

Description

  The present invention relates to a casing having an open top for housing a heating case for an object to be heated, and a long electric heater disposed on the bottom surface in a curved or bent state so as to go around the bottom surface of the casing, The present invention relates to an electric heating cooker including a heater support that supports an electric heater on a bottom surface of a casing, and a fixing unit that fixes the heater support to the bottom surface of the casing.

Such an electric heating cooker heats and heats an object to be heated contained in the heating case by heating the heating case with an electric heater. Specific examples include a bread maker and rice cooker. And a hot plate. By the way, the heating case has various forms depending on the specific example of the electric heating cooker, such as one with a high rise at the outer periphery, one with a low rise, a rectangular shape in plan view, a circular shape, etc. Is used. For example, a baking case or rice cooker uses a heating case (bread case or rice cooker) with a high rise at the outer peripheral portion, and a hot case uses a heating case with a low rise at the outer peripheral portion.
In such an electric heating cooker, a long electric heater that is curved or bent so as to circulate on the bottom surface of the casing is supported on the bottom surface of the casing by the heater support. Conventionally, the following configuration has been proposed as a support configuration of the electric heater.

For example, in a state where the heater support is fixed to the bottom member, a heater portion having a base portion facing the upper surface of the bottom member, and an engagement groove extending upward from the base portion and opening upward at the upper end portion. And configured. Then, a screw insertion hole is provided in the base portion of the heater support, and a screw hole is provided in the bottom portion of the casing so as to fit the screw insertion hole so that the screw is inserted through the screw insertion hole in the base portion. The heater support is fixed to the bottom surface of the casing by tightening the screw hole at the bottom of the casing.
That is, the fixing means for fixing the heater support to the bottom surface of the casing is configured as a screw type consisting of a screw and a screw hole at the bottom of the casing, and is configured to support the electric heater in the engagement groove of the heater support. (For example, refer to Patent Document 1).

In another support configuration, the heater support includes a pair of side plates provided with a locking piece via a narrow neck at the lower end, and a groove-like portion straddling the upper ends of the pair of side plates. Was composed. A pair of holes into which the pair of locking pieces of the heater support can be inserted separately are formed at the bottom of the casing, and the pair of locking pieces of the heater support are respectively inserted into the pair of holes at the bottom of the casing. The heater support is fixed to the bottom surface of the casing by twisting each locking piece on the back side of the bottom of the casing while being inserted from above.
That is, the fixing means is configured by a pair of locking pieces of the heater support and a pair of holes in the bottom portion of the casing, and is configured to support the electric heater by the groove-shaped portion of the heater support (for example, , See Patent Document 2).

Japanese Patent Laying-Open No. 2005-237749 Japanese Utility Model Publication No. 5-1431

However, in the conventional electric heating cooker, if the fixing means cannot exert its original function to fix the heater support to the bottom surface of the casing due to aging, damage to members, etc., the heater support may fall down or come off. Thus, there is a possibility that the electric heater cannot be properly supported on the bottom surface of the casing, and an improvement has been desired.
For example, in the electric heating cooker disclosed in Patent Document 1, if the screw comes off or loosens from the screw hole at the bottom of the casing due to aging or the like, the heater supporter falls down or comes off. It becomes impossible to support properly.
Moreover, in the electric heating cooking appliance of patent document 2, when a latching piece breaks and it falls from a side plate, since a heater support will fall down or remove | deviate, it becomes impossible to support an electric heater on the bottom face of a casing appropriately.

  This invention is made | formed in view of this situation, The objective is to provide the electric heating cooking appliance which can support an electric heater on the bottom face of a casing reliably.

In order to achieve the above object, an electric heating cooker according to the present invention comprises a casing having an open top for housing a case for heating an object to be heated, and a curved or bent state so as to circulate on the bottom surface of the casing. A long electric heater disposed on the bottom; a heater support for supporting the electric heater on the bottom of the casing; and a fixing means for fixing the heater support to the bottom of the casing. Electric heating cooker, the characteristic configuration is
The casing includes a bottom member to which the heater support is fixed by the fixing means, and an outer peripheral member to be fixed to the bottom member,
The heater support is fixed to the bottom member, and a base part facing the top surface of the bottom member, a hanging part extending downward from the base part, and a heater receiving part extending upward from the base part Configured with
The hanging portion of the heater support is provided with a slit that opens laterally and enters along a direction parallel to the platform,
An insertion hole through which the drooping portion of the heater support can be inserted into the bottom member and the heater support in a state in which the drooping portion is inserted can be rotated along the top surface of the bottom member. And an insertion portion that is inserted into the slit as the heater support rotates, and a receiving portion that receives the hanging portion and stops the rotation of the heater support.
A pressing member that sandwiches the hanging portion of the heater support between the outer peripheral member and the receiving portion in a state where the outer peripheral member is fixed to the bottom member and is received by the receiving portion of the bottom member. The point is that a part is provided.

According to the above characteristic configuration, when the heater support is rotated along the upper surface of the bottom member in a state where the hanging portion is inserted into the insertion hole of the bottom member, the insertion portion of the bottom member is inserted into the slit of the hanging portion. At the same time, while maintaining such a state, the hanging portion is received by the receiving portion of the bottom member, and the rotation of the heater support is stopped. Subsequently, the outer peripheral member is fixed to the bottom member at a predetermined fixing position.
Thus, the heater support is disposed on the bottom member in a state where the hanging portion is inserted into the insertion hole and received by the receiving portion, and when the outer peripheral member is fixed to the bottom member, The insertion part of the bottom member is inserted into the slit of the hanging part of the heater support member inserted through the material insertion hole, and the hanging part of the heater support member is between the receiving part of the bottom member and the pressing part of the outer peripheral member. It will be in a state of being sandwiched between. In this state, even if the heater support is not fixed to the bottom member by the fixing means, the insertion portion of the bottom member is inserted into the slit in the hanging portion of the heater support inserted through the insertion hole of the bottom member. This prevents relative movement of the heater support relative to the bottom member in a direction intersecting the surface direction of the bottom member, and the hanging portion of the heater support is between the receiving portion of the bottom member and the pressing portion of the outer peripheral member. By being sandwiched between the two, the relative movement or relative rotation of the heater support with respect to the bottom member in the direction along the surface direction of the bottom member is prevented.
That is, even if the fixing means cannot exert its original function to fix the heater support to the bottom surface of the casing due to deterioration over time or damage to the member, the heater support comes out, tilts, and follows the surface direction of the bottom member. Since the heater support is held at a predetermined position on the bottom member in an appropriate posture by being prevented from moving and rotating in the direction, the heater support can be used to properly position the electric heater at a predetermined position on the bottom surface of the casing. It can be supported.
Accordingly, it is possible to provide an electric heating cooker that can reliably support the electric heater on the bottom surface of the casing.

  A further characteristic configuration of the electric heating cooker according to the present invention is that the outer peripheral member is configured to have a frame shape or a cylindrical shape and to form a side peripheral surface of the casing.

According to the above characteristic configuration, since the outer peripheral member is configured in a frame shape or a cylindrical shape, when fixing the outer peripheral member to the bottom member, it is easy to align the bottom member, and a single outer peripheral member is Since the casing can be configured by fixing to the bottom member, the assembling work of the casing can be simplified.
And when the outer peripheral member is assembled to the bottom member in such a manner, the pressing portion of the outer peripheral member is positioned and disposed so as to sandwich the hanging portion of the heater support with the receiving portion of the bottom member. is there.
Therefore, it is possible to reliably support the electric heater on the bottom surface of the casing while simplifying the manufacturing operation.

A further characteristic configuration of the electric heating cooker according to the present invention is such that the electric heater is curved or bent so as to have a pair of opposed portions facing each other,
At least two of the heater support members are fixed to the bottom member in a state of being distributed to each of the pair of opposed portions of the electric heater,
The heater receiving recess for receiving the electric heater is opposite to the other facing portion side in a state where each heater support is fixed to the bottom member corresponding to one facing portion of the pair of facing portions. It is in the point provided in the said heater receiving part of each heater support so that it may open sideways sideways.

According to the above characteristic configuration, the electric heater is supported in a state where the pair of opposed portions are stretched outward by the at least two heater support members arranged in a state of being distributed to each of the pair of opposed portions of the electric heater. Therefore, the electric heater can be supported so that there is no backlash.
In addition, even if the electric heater is heated by energization and thermally expanded, the portion corresponding to the outside of the electric heater in the recess for receiving the heater is open, so that the thermal expansion is allowed and stress generation is suppressed. It is possible to prevent the durability of the electric heater from being lowered.
Therefore, it is possible to reliably support the electric heater without rattling while preventing a decrease in durability of the electric heater due to the generation of stress.

  According to a further characteristic configuration of the electric heating cooker according to the present invention, in the plan view, the receiving portion of the bottom member corresponding to the one facing portion and the pressing portion of the outer peripheral member are arranged on the one facing portion. On the other hand, it is the point comprised so that it may be located in the other side of said other opposing part side.

According to the above characteristic configuration, in a state where the outer peripheral member is fixed to the bottom member, the pressing portion of the outer peripheral member is opposite to the opposing portion corresponding to the pressing portion of the pair of opposing portions in the electric heater. It is located on the opposite side of the facing portion side, that is, on the outer peripheral side of the bottom member.
That is, since the outer peripheral member is fixed to the bottom member so as to surround the outer periphery of the electric heater disposed on the bottom member, the holding portion is electrically heated by adopting the holding portion as described above. The outer peripheral member can be provided without interfering with the opposing portion of the heater, so that the configuration of the outer peripheral member can be avoided and the assembly can be simplified.
Accordingly, it is possible to reliably support the electric heater on the bottom surface of the casing while avoiding the complicated configuration of the casing.

  According to a further characteristic configuration of the electric heating cooker according to the present invention, the outer peripheral member is provided with an insertion hole covering portion that covers a region other than the region where the drooping portion of the heater support in the insertion hole exists. There is in point.

According to the above characteristic configuration, when the outer circumferential member is fixed to the bottom member, the insertion hole covering portion of the outer circumferential member covers a region other than the region where the hanging portion of the heater support in the insertion hole exists.
That is, even if an insertion hole is provided in the bottom member, it is possible to prevent the appearance from being damaged by the insertion hole, and it is possible to prevent foreign matter from falling to the back side of the bottom member through the insertion hole.

The perspective view which shows the external appearance of the bread maker in the state which opened the cover body Longitudinal front view of bread machine Partially cutaway perspective view of a bread maker with the lid open and the pan case removed Cross-sectional plan view of the main part of the bread maker with the pan case removed The perspective view explaining the attachment procedure of a heater support The perspective view explaining the attachment procedure of a heater support Transverse plan view explaining the procedure for mounting the heater support Exploded perspective view showing mounting structure of heater support Perspective view showing mounting structure of heater support Sectional view in the XX direction of FIG. Sectional view in the XI-XI direction of FIG.

Hereinafter, based on the drawings, an embodiment when the present invention is applied to a bread maker as an example of an electric heating cooker will be described.
As shown in FIGS. 1 and 2, the bread maker includes a main body 1 having a casing C whose upper portion is opened by an upper opening 4, and a bread that is detachably mounted in the casing C of the main body 1. A case 2 (an example of a heating case) and a cover 3 that can freely open and close an upper opening 4 of the casing C are provided.
The main body 1 is formed in a bottomed box shape having a generally rectangular shape in plan view and having an open top, and is generally rectangular with four corners rounded toward one end in the longitudinal direction in the main body 1 in plan view. A shaped casing C is provided. And the inside of the main body 1 has a heating chamber 5 formed in the casing C on one end side in the longitudinal direction in plan view, a control unit accommodating chamber 6 on the other end side in the longitudinal direction in plan view, the heating chamber 5 and the control unit. It is divided into three compartments with the transmission part accommodating chamber 7 below the accommodating chamber 6.

  Furthermore, in this bread maker, as shown in FIG. 3 and FIG. 4, a long electric heater 8 disposed on the bottom surface of the casing C in a bent state so as to go around the bottom surface of the casing C, A heater support 30 for supporting the electric heater 8 on the bottom surface of the casing C in a state of being separated from the bottom surface, and a screw type fixing means 9 as a fixing means for fixing the heater support 30 to the bottom surface of the casing C. Is provided. Incidentally, as the electric heater 8, for example, a so-called sheathed heater can be used.

As shown in FIGS. 1 and 2, the lid 3 is provided at the opening edge of the upper opening 4 of the casing C so as to be swingable around a horizontal axis by a hinge structure. The upper opening 4 of C is configured to be openable and closable.
The lid 3 has a substantially inverted U shape that bulges upward in a longitudinal front view and a longitudinal side view, and is provided with a confirmation window 10 made of heat-resistant transparent glass and a steam vent hole 11. ing.
An internal space defined by the casing C and the lid 3 is formed as the heating chamber 5, and the pan case 2 is accommodated in the heating chamber 5.

As shown in FIGS. 1 and 2, the pan case 2 has a rectangular shape with rounded four corners in a plan view, and has a bottomed box shape with an opening at the top. A pair of handles 2a are provided so as to be distributed to both ends in the direction.
As shown in FIG. 2, a pan case base 20 for mounting and supporting the pan case 2 is integrally attached to the back side of the bottom of the pan case 2.
In addition, a pair of drive shafts 13 are provided on the bottom of the pan case 2 side by side in the longitudinal direction in a state of being rotatably supported around the vertical axis, and from the bottom of the pan case 2 on each drive shaft 13. The driven side connector 23 is fixed to the protruding portion. A blade member 18 is detachably attached to each drive shaft 13.
As shown in FIGS. 1 and 2, the pan case 2 is mounted in the casing C in a state where it is placed and supported on the pan case base 20.
Further, when the pan case 2 is mounted in the casing C, the upper opening of the pan case 2 is configured to be positioned below the upper opening 4 of the casing C. Thereby, even if the lid 3 is opened, heat radiation from the inside of the pan case 2 is suppressed, and a temperature drop in the pan case 2 is suppressed.

As shown in FIGS. 2 to 4, at the bottom of the casing C, when the pan case 2 is mounted in the casing C in a state of being placed on the pan case base 20, the pair of driven side connectors 23 are respectively connected. A pair of drive-side couplers 24 are arranged side by side in the longitudinal direction of the heating chamber 5 in a state of being rotatably supported about the vertical axis. As shown in FIG. 2, the control unit accommodation chamber 6 has an electric motor 14 for driving and rotating a pair of drive shafts 13, and an operation of the electric heater 8, the electric motor 14, etc. The control part 15 which controls the driving | operation of is provided. As shown in FIG. 1, an operation unit 17 having an operation switch or the like is provided on the lid cover 16 that closes the upper part of the control unit accommodation chamber 6.
Further, as shown in FIG. 2, the transmission unit accommodating chamber 7 is provided with a transmission unit 40 that transmits and connects the electric motor 14 and the pair of drive shafts 13.

Then, when a bread making material (not shown) is put into the bread case 2 and an operation start is instructed by the operation unit 17, the operation of the electric heater 8 and the electric motor 14 is controlled by the control unit 15, and the bread dough is controlled. A kneading process for kneading, a fermentation process for fermenting the bread dough, and a baking process for heating the bread dough to bake the bread are sequentially executed to bake the bread.
In addition, since the kneading process, the fermentation process, and the baking process are publicly known, description of the operating conditions and the like of each process is omitted.

Hereinafter, each part of the bread maker will be described.
As shown in FIGS. 2 to 4, the casing C forms a bottom portion thereof, and a bottom plate member 50 as a bottom member to which the heater support 30 is fixed by the screw-type fixing means 9, and is fixed to the bottom plate member 50. And a peripheral wall member 60 as an outer peripheral member forming the outer peripheral portion of the casing C.
The bottom plate member 50 is configured in a rectangular plate shape over substantially the entire area in the main body 1 in plan view. The rectangular plate-like bottom plate member 50 is disposed on the bottom portion in the main body 1 with a space (not shown) spaced by a spacer (not shown) so as to form the transmission portion accommodating chamber 7 therebetween.

The peripheral wall member 60 has a generally rectangular shape with rounded four corners in plan view, and is configured in a rectangular tube shape with both ends opened to form a side peripheral surface of the casing C. The square cylindrical peripheral wall member 60 is arranged on the bottom plate member 50 so as to approach one end side in the longitudinal direction of the bottom plate member 50 in a posture in which the longitudinal direction in plan view is along the longitudinal direction of the bottom plate member 50. Established.
As shown in FIGS. 4 and 8 to 11, overhang portions 61 projecting at right angles toward the inward side are provided on the respective four side edges of the lower opening of the peripheral wall member 60.
As shown in FIGS. 8 and 10, each projecting portion 61 has two bolt insertion holes 62 arranged in the circumferential direction, and the peripheral wall member 60 is disposed at a predetermined fixing position on the bottom plate member 50. Thus, the peripheral wall member fixing screw hole 51 in which the female screw is formed is formed in the bottom plate member 50 so that each bolt insertion hole 62 of each overhanging portion 61 overlaps.

  2 to 4, the peripheral wall member 60 is disposed at a predetermined fixing position on the bottom plate member 50, and the bolt 19 is passed through each bolt insertion hole 62 as shown in FIGS. 8 and 10. The peripheral wall member 60 is fixed to the bottom plate member 50 by being fastened to each peripheral wall member fixing screw hole 51. As a result, the heating chamber 5 is formed in the peripheral wall member 60 on the bottom plate member 50, and the control unit accommodation chamber 6 is formed outside the peripheral wall member 60 on the bottom plate member 50.

  As shown in FIG. 2 to FIG. 4, the pair of drive side couplers 24 is a state in which the rotation shaft portion (not shown) protrudes downward from the bottom plate member 50 in the portion in the heating chamber 5 of the bottom plate member 50. And is rotatably supported.

As shown in FIG. 2, a small pulley 41 having the same diameter is fixed to the rotating shaft portion that protrudes downward from the bottom plate member 50 in each of the pair of drive side couplers 24. A large pulley 42 is fixed to a rotating shaft portion (not shown) protruding to the side.
A first timing belt 43 is wound around the output shaft 14 a of the electric motor 14 and the large pulley 42, and a second timing belt 44 is wound around the small pulley 41 of each drive shaft 13. The pair of drive shafts 13 are rotationally driven by the electric motor 14.

  That is, a transmission unit 40 that transmits and connects the electric motor 14 and the pair of drive shafts 13 includes a pair of small pulleys 41 fixed to the pair of drive shafts 13, a large pulley 42 fixed to one drive shaft 13, The first timing belt 43 is wound around the output shaft 14a of the electric motor 14 and the large pulley 42, the second timing belt 44 is wound around the pair of small pulleys 41, and the like.

  As described above, the bottom plate member 50 supports the pan case 2 and the electric motor 14 in a mounted state, and supports the transmission unit 40 in a suspended state. Is made of a member such as a metal plate that is thick and strong.

Based on FIGS. 4-11, the support structure of the electric heater 8 which concerns on this invention is demonstrated.
In the present invention, the heater support 30 is fixed to the bottom plate member 50, a base portion 31 that faces the upper surface of the bottom plate member 50, a hanging portion 32 that extends downward from the base portion 31, and the base portion 31. And a heater receiver 34 extending upward from the top.
The hanging portion 32 of the heater support 30 is provided with a slit 33 that opens laterally and enters in a direction parallel to the base portion 31. The heater receiving portion 34 of the heater support 30 receives the electric heater 8. A heater receiving recess 35 is provided.
In addition, the bottom plate member 50 can be inserted with the drooping portion 32 of the heater support 30, and the heater support 30 with the drooping portion 32 inserted therethrough can be rotated along the top surface of the bottom plate member 50. A possible hanging part insertion hole 52 (an example of an insertion hole), an insertion part 53 inserted into the slit 33 as the heater support 30 rotates, and the hanging part 32 are received to stop the rotation of the heater support 30. A receiving portion 54 is provided.
Further, the bottom plate member 50 receives the hanging portion 32 of the heater support 30 in a state where the peripheral wall member 60 is fixed to the bottom plate member 50 and is received by the receiving portion 54 of the bottom plate member 50. A pressing portion 63 is provided to be sandwiched between the portions 54.

As shown in FIG. 4, in this embodiment, the electric heater 8 is bent and formed into a rectangular frame shape larger than the outer periphery of the generally rectangular bread case 2 so as to have a pair of opposed portions 8p facing each other. It is configured.
This generally rectangular frame-shaped electric heater 8 is seen in a plan view on each of a pair of opposed opening edges in a rectangular opening at the lower end of the peripheral wall member 60 in which each of the pair of opposed portions 8p is disposed on the bottom plate member 50. It arrange | positions on the baseplate member 50 with the form which opposes.
Then, the two heater support members 30 are fixed to the bottom plate member 50 in a state of being distributed to each of the pair of opposed portions 8p in the electric heater 8.

Note that the two heater support members 30 provided to be distributed to each of the pair of opposed portions 8p in the electric heater 8 are configured to be plane-symmetric with each other, but FIGS. It is a figure which shows the heater support tool 30 of the left side of right-and-left two in FIG.
5 to 9 are diagrams illustrating a procedure for mounting the heater support 30. FIG.
FIG. 5 is a perspective view showing a state in which the hanging portion 32 of the heater support 30 is inserted into the hanging portion insertion hole 52 of the bottom plate member 50, and (a) is a perspective view of the heater support 30 as viewed from the upper right front. It is a figure and (b) is the perspective view which looked at the heater support tool 30 from upper left front.
FIG. 6 is a perspective view showing a state in which the heater support 30 is rotated in a state where the hanging portion 32 is inserted into the hanging portion insertion hole 52 of the bottom plate member 50.
FIG. 7 is a cross-sectional plan view showing a state in which the heater support 30 is rotated in a state where the drooping portion 32 is inserted into the drooping portion insertion hole 52 of the bottom plate member 50, and FIG. It is a figure which shows the state before making it perform, (b) is a figure which shows the state after rotating the heater support tool 30. FIG.
FIG. 8 is an exploded perspective view showing a state in which the peripheral wall member 60 is mounted and a state in which the heater support 30 is fixed by the screw-type fixing means 9, and FIG. 9 shows a state in which the heater support 30 is fixed. It is a perspective view.

The heater support 30 will be described based on FIGS.
The heater support 30 has a base 31, a hanging part 32, a slit 33, a heater receiving part 34, a heater receiving recessed part 35, and the like as described above by punching and bending a metal plate-like material. Configured in shape.
The base 31 of the heater support 30 has a plate shape having a pair of end edges facing in parallel to each other, and one of the pair of end edges is provided with a plate-like hanging portion 32, and the other is plate-shaped. The heater receiving portion 34 is provided.

The drooping portion 32 is provided at a portion on one end side of the end edge of the base portion 31 so as to extend downward at a right angle from the end edge of the base portion 31, and the remaining portion at the end edge is more than the drooping portion 32. In a form in which the extending length (corresponding to the projecting dimension from the pedestal 31) is shortened, a hanging portion side interval holding portion 36 is provided that extends perpendicularly downward from the edge of the pedestal 31 to the same side as the hanging portion 32. ing.
The slit 33 is provided in the hanging portion 32 so as to enter a direction parallel to the base portion 31 from the hanging portion side interval holding portion 36 side toward the opposite side to the hanging portion side interval holding portion 36 side. ing.

The heater receiving portion 34 is provided at a portion on the other end side of the end edge of the base portion 31 so as to extend perpendicularly from the end edge of the base portion 31 to the upper side opposite to the hanging portion 32, and the rest at the end edge thereof. In this form, the extending length (corresponding to the projecting dimension from the pedestal 31) is the same as that of the hanging part side interval holding part 36. The receiving part side space | interval holding | maintenance part 37 extended at right angle to the downward direction which is the same side is provided. In addition, the drooping part side space | interval holding | maintenance part 36 and the receiving part side space | interval holding | maintenance part 37 are provided in the edge part of the mutually same side in the edge of the base part 31 corresponding to each.
The heater receiving recess 35 is formed so that the heater receiving portion 35 enters the direction parallel to the base portion 31 from the side opposite to the receiving portion side interval holding portion 37 to the receiving portion side interval holding portion 37 side. 34 is provided.

That is, the slit 33 and the heater receiving recess 35 open in opposite directions to each other in the direction parallel to the edge of the pedestal 31, and the depth direction (alignment direction of the opening and the bottom) is parallel to each other. It is comprised so that it may become.
As shown in FIGS. 5 to 8, the base portion 31 is provided with a bolt insertion hole 38.

The hanging part insertion hole 52 of the bottom plate member 50 will be described.
As shown in FIGS. 4 to 11, the bottom plate member 50 is provided with fitting recesses 55 into which the protruding portions 61 of the peripheral wall member 60 can be fitted from above, and the hanging portion insertion hole 52 is formed on the bottom plate. The member 50 is provided at a portion corresponding to the inside of the fitting recess 55.
The drooping portion insertion hole 52 is along a generally fan-shaped fan-shaped opening 52a having a central angle of 90 degrees and one linear opening edge of the fan-shaped opening 52a in plan view. Thus, it is configured in a shape in which a linear slit-shaped opening 52b extending outward in the radial direction of the fan shape is combined.

As shown mainly in FIGS. 6, 7 and 11, in the fan-shaped opening portion 52a of the hanging portion insertion hole 52, an interval R between the intersection of the pair of linear opening edges and the generally arcuate opening edge (see FIG. 7) is set to be slightly larger than the width Wa (see FIG. 7, hereinafter referred to as slit remaining width) of the remaining portion where the slit 33 is formed in the hanging portion 32 of the heater receiving portion 34.
However, the substantially arc-shaped opening edge of the fan-shaped opening 52a is configured so that the portion on the opposite side of the slit-shaped opening 52b is substantially parallel to the straight slit-shaped opening 52b. Has been. The length Ra (see FIG. 7) of the linear opening edge perpendicular to the slit-shaped opening 52b in the fan-shaped opening 52a is the remaining slit width Wa (see FIG. 7) of the hanging part 32 of the heater support 30. Reference)).

Also, mainly as shown in FIGS. 5 and 7, the width D (see FIG. 7) of the slit-like opening 52 b of the hanging part insertion hole 52 is larger than the thickness T of the hanging part 32 of the heater support 30. In addition, the length L of the slit-shaped opening 52b of the hanging part insertion hole 52 is set to be slightly larger than the width Wb (see FIG. 7) of the hanging part 32 of the heater support 30. The
Further, the length L of the slit-shaped opening 52b of the hanging part insertion hole 52 is larger than the interval R between the intersection of the pair of linear opening edges in the fan-shaped opening 52a and the generally arcuate opening edge. Set to

  In the portion corresponding to the hanging portion insertion hole 52 of the shape in the fitting recess 55 in the bottom plate member 50, the fitting recess 55 in the bottom plate member 50 is provided in the length direction of the slit-like opening portion 52 b. It is provided in a state along the edge.

As shown in FIG. 5 and FIG. 6, in a posture in which the opening of the slit 33 is directed toward the tip side of the slit-like opening 52 b of the hanging part insertion hole 52 (opposite side to the fan-like opening 52 a). The hanging part 32 of the support tool 30 is inserted into the slit-shaped opening 52 b of the hanging part insertion hole 52.
6 and 7, the slit 33 in the width direction of the hanging portion 32 is opened in a plan view in a state where the hanging portion 32 is inserted into the slit-like opening 52b of the hanging portion insertion hole 52. When the heater support 30 is rotated toward the inward side of the bottom plate member 50 with the position corresponding to the end opposite to the opposite side as the rotation center P, the drooping insertion hole 52 of the bottom plate member 50 is substantially circular. The heater support 30 can be rotated in a state where a portion along the arc-shaped opening edge functions as the insertion portion 53 and is inserted into the slit 33.
When the heater support 30 is rotated 90 degrees in this manner, the hanging portion 32 of the heater supporting device 30 comes into contact with the inner surface along the linear opening edge of the fan-shaped opening portion 52a of the hanging portion insertion hole 52, and the heater The rotation of the support tool 30 is stopped, and the inner surface of the support tool 30 acts as a receiving portion 54.

When the heater support 30 is rotated while the hanging portion 32 is inserted into the hanging portion insertion hole 52 as described above, and when the hanging portion 32 is received by the receiving portion 54, the bottom plate member 50. Since the insertion portion 53 is inserted into the slit 33, relative movement of the heater support 30 in the direction along the length direction (vertical direction) of the hanging portion 32 with respect to the bottom plate member 50 is restricted.
Moreover, since the length Ra of the linear opening edge orthogonal to the slit-shaped opening portion 52b in the fan-shaped opening portion 52a is substantially the same as the remaining slit width Wa of the hanging portion 32 of the heater receiving portion 34, the heater When the hanging portion 32 of the support 30 is received by the receiving portion 54 of the bottom plate member 50, the bottom portion of the slit 33 is in contact with or close to the inner surface of the hanging portion insertion hole 52 of the bottom plate member 50. The support tool 30 is held by the bottom plate member 50 in a state where there is no backlash or smallness in the width direction (lateral direction) of the hanging part 32.

  As shown in FIGS. 6, 8, 9, and 11, when the heater support 30 is disposed in a state in which the drooping portion 32 is in contact with the receiving portion 54 of the bottom plate member 50, in plan view. The heater receiving portion 34 of the heater support 30 is in a state orthogonal to the facing portion 8p of the electric heater 8 disposed on the bottom plate member 50, and the heater receiving concave portion 35 of the heater receiving portion 34 is the bottom plate member. It will be in the state opened toward the outer peripheral part side of 50.

As shown in FIGS. 5 and 7, when the heater support 30 is disposed on the bottom plate member 50 with the hanging portion 32 received by the receiving portion 54, the base portion 31 of the heater support 30. A heater fixing screw hole 56 in which a female screw is formed is provided in the bottom plate member 50 so as to be aligned with the bolt insertion hole 38 provided in the bottom plate member 50.
Then, as shown in FIGS. 8 and 9, when the bolt 21 is inserted into the bolt insertion hole 38 and fastened to the heater fixing screw hole 56, the heater support 30 is fixed to the bottom plate member 50. The bolt insertion hole 38 and the heater fixing screw hole 56 are located on the inner side of the facing portion 8p of the electric heater 8 supported by the heater receiving recess 35 of the heater support 30. Is provided in the base 31 of the heater support 30, and a screw hole 56 for fixing the heater is provided in the bottom plate member 50.
That is, the screw type fixing means 9 is constituted by the bolt 21 and the heater fixing screw hole 56. Further, the screw type fixing means 9 is configured such that the heater support 30 is attached to the bottom plate member in a posture in which the hanging portion 32 is inserted into the hanging portion insertion hole 52 of the bottom plate member 50 and received by the receiving portion 54 of the bottom plate member 50. 50 is configured to be fixable to 50.

As shown in FIGS. 4, 8, 9, and 10, the projecting portion 61 of the peripheral wall member 60 overlaps the fitting recess 55 of the bottom plate member 50 in the base portion 31 of the heater support 30 in plan view. A recess 64 having a shape along the outer periphery of the overlapping portion is provided.
And the surrounding wall member 60 is arrange | positioned in the fixed position on the baseplate member 50, and it fixes to the baseplate member 50 with the volt | bolt 19 as mentioned above. Then, as shown in FIGS. 4, 9, and 10, the protruding portion 61 of the peripheral wall member 60 covers a region other than the region where the hanging portion 32 of the heater support 30 exists in the hanging portion insertion hole 52. . That is, the overhang portion 61 corresponds to the insertion hole covering portion.

  Also, as shown in FIGS. 4, 9, and 10, the inner surface of the recessed portion 64 of the peripheral wall member 60 that faces the hanging portion 32 of the heater support 30 functions as a pressing portion 63 and contacts the hanging portion 32. In addition to being in contact with or close to each other, the hanging portion 32 of the heater support 30 is sandwiched by the receiving portion 54 in the hanging portion insertion hole 52 of the bottom plate member 50.

  As shown in FIGS. 9 to 11, the heater support 30 has the bottom plate 32 in a state where the hanging portion 32 is inserted into the hanging portion insertion hole 52 of the bottom plate member 50 and received by the receiving portion 54. When the peripheral wall member 60 is disposed on the member 50 and is fixed to the fixing position on the bottom plate member 50 by the bolt 19, the insertion portion 53 of the bottom plate member 50 is inserted into the slit 33 of the heater support 30, and The hanging portion 32 of the heater support 30 is sandwiched between the receiving portion 54 of the bottom plate member 50 and the pressing portion 63 of the peripheral wall member 60. In such a state, even if the heater support 30 is not fixed to the bottom plate member 50 by the bolt 21, the slit 33 of the drooping portion 32 of the heater support 30 inserted through the drooping insertion hole 52 of the bottom plate member 50. Since the insertion portion 53 of the bottom plate member 50 is inserted into the bottom plate member 50, the relative movement of the heater support tool 30 with respect to the bottom plate member 50 in the direction intersecting the surface direction of the bottom plate member 50 is prevented. Since the hanging portion 32 is sandwiched between the receiving portion 54 of the bottom plate member 50 and the peripheral wall member 60 pressing portion 63, the heater support 30 is relative to the bottom plate member 50 in the direction along the surface direction of the bottom plate member 50. Movement and relative rotation are prevented.

  Further, each of the two heater support members 30 is fixed to the bottom plate member 50 at a predetermined position as described above, and the facing portion 8p of the electric heater 8 is fitted into the heater receiving recess portion 35 of each heater support member 30 from the outside. 4 and FIG. 9 to FIG. 11, in the plan view, it is sandwiched between the receiving portion 54 of the bottom plate member 50 and the pressing portion 63 of the peripheral wall member 60 in the hanging portion 32 of the heater support 30 in plan view. The shape of the heater support 30 is set so that the portion is located on the outer peripheral portion side of the bottom plate member 50 with respect to the facing portion 8p of the electric heater 8.

By adopting the mounting structure of the heater support 30 as described above, in this embodiment, the two heater supports 30 are fixed to the bottom plate member 50 in a state where they are distributed to the pair of opposed portions 8p of the electric heater 8. The heater receiving recess 35 is in a state in which each heater support 30 is fixed to the bottom plate member 50 corresponding to one opposing portion 8p of the pair of opposing portions 8p, and the other opposing portion 8p side. It is provided in the heater receiving portion 34 of each heater support 30 so as to open in the lateral direction on the opposite side.
Further, in plan view, the receiving portion 54 of the bottom plate member 50 and the pressing portion 63 of the peripheral wall member 60 corresponding to one of the opposing portions 8p of the pair of opposing portions 8p are opposed to the one opposing portion 8p. It is comprised so that it may be located in the other side of the opposing part 8p side.
Further, the peripheral wall member 60 is provided with an insertion hole covering portion (that is, an overhang portion 61) that covers a region other than the region where the hanging portion 32 of the heater support 30 exists in the hanging portion insertion hole 52. Become.

Next, a procedure for supporting the electric heater 8 by the heater support 30 will be described.
As shown in FIGS. 5 and 6, each of the two heater support members 30 is disposed on the bottom plate member 50 in a state where the hanging portion 32 is inserted into the hanging portion insertion hole 52.
Subsequently, as shown in FIGS. 6 and 7, each of the positions corresponding to the end opposite to the side where the slit 33 is opened in the width direction of the hanging portion 32 in the plan view is defined as each rotation center P. The heater support 30 is rotated 90 degrees toward the inner side of the bottom plate member 50.
Further, when each heater support 30 is rotated in this way, as shown in FIGS. 8 and 9, the heater receiving recesses of the heater support 30 corresponding to the pair of opposed portions 8p of the electric heater 8 respectively. 35, the electric heater 8 is supported by the two heater supports 30.
Then, as shown in FIG. 8, the ring-shaped spacer 22 is inserted between the base portion 31 of each heater support 30 and the bottom plate member 50, and the bolt 21 is inserted into the bolt insertion hole 38 and the hole of the spacer 22. Then, each heater support 30 is fixed to the bottom plate member 50 by being fastened to the heater fixing screw hole 56 of the bottom plate member 50.

The spacer 22 is formed of a material having heat resistance and heat insulation. As shown in FIGS. 10 and 11, the thickness of the spacer 22 is slightly larger than the projecting dimension of the heater support 30 from the base portion 31 in the hanging portion side interval holding portion 36 and the receiving portion side interval holding portion 37. It is set to be large.
As a result, in a state where each heater support 30 is fixed to the bottom plate member 50 with the bolt 21, the drooping side space holding portion 36 and the receiving portion side space holding portion 37 of each heater support 30 are formed on the bottom plate member 50. Since it is separated from the surface, heat transfer from the electric heater 8 to the bottom plate member 50 and the peripheral wall member 60 is suppressed. Accordingly, during the operation of the bread maker, the temperature rise of the bottom plate member 50 and the peripheral wall member 60 can be suppressed, and thus the temperature increase of the main body 1 can be suppressed.

  Subsequently, the peripheral wall member 60 is disposed at a predetermined fixing position on the bottom plate member 50, and the bolt 19 is tightened to each peripheral wall member fixing screw hole 51 through each bolt insertion hole 62, thereby the peripheral wall member 60 is fixed to the bottom plate member 50. Secure on top.

[Another embodiment]
(A) The form which arrange | positions the elongate electric heater 8 so that it may wrap on the bottom face of the casing C is the form illustrated in said embodiment, ie, the form bent and formed in a substantially rectangular frame shape by planar view. It is not limited.
For example, the form which carries out curve shaping | molding substantially cyclically | annularly by planar view may be sufficient.
Or in said embodiment, although it was set as the form provided with the opposing part 8p which mutually opposes, the form provided with three or more opposing parts 8p which mutually oppose may be sufficient.

(B) The bottom plate in a state where the electric heater 8 is bent or bent so as to have a pair of opposed portions 8p facing each other, and at least two heater support members 30 are distributed to each of the pair of opposed portions 8p in the electric heater 8. In the structure fixed to the member 50, the direction in which the heater receiving recess 35 opens is the direction illustrated in the above embodiment, that is, each heater support 30 is located on one opposing portion 8p of the pair of opposing portions 8p. Correspondingly, it is not limited to the lateral direction opposite to the other facing portion 8p side in a state of being fixed to the bottom plate member 50.
For example, each heater support 30 may be in the horizontal direction on the other facing portion 8p side in a state where the heater support 30 is fixed to the bottom plate member 50 corresponding to one facing portion 8p of the pair of facing portions 8p. Alternatively, it may be upward.

(C) The specific configuration of the fixing means 9 for fixing the heater support 30 to the bottom plate member 50 is not limited to the screw type as exemplified in the above embodiment. For example, when the heater support 30 is rotated until the hanging portion 32 is received by the receiving portion 54 of the bottom plate member 50, the engaging portions are respectively engaged with the bottom plate member 50 and the heater support 30 so that they are engaged with each other. Alternatively, an engaged portion may be provided, and the fixing means may be configured by the engaged portion and the engaged portion.

(D) The angle at which the heater support 30 is rotated along the upper surface of the bottom plate member 50 so that the drooping portion 32 is received by the receiving portion 54 of the bottom plate member 50 is limited to 90 degrees exemplified in the above embodiment. It may be smaller or larger than 90 degrees.
In this case, the heater support 30 can be appropriately mounted on the bottom plate member 50, and the hanging portion 32 and the heater receiving portion 34 are oriented in accordance with the rotation angle so that the electric heater 8 can be appropriately supported. 30.

(E) The shape of the hanging portion insertion hole 52 formed in the bottom plate member 50 is limited to the shape exemplified in the above embodiment, that is, the shape in which the fan-shaped opening portion 52a and the slit-shaped opening portion 52b are combined. It is not a thing, but it can set suitably on the conditions which provide the insertion part 53 so that it can insert in the slit 33 of the heater support tool 30 with rotation of the heater support tool 30. FIG.

(F) The number of heater support 30 installed is not limited to the two illustrated in the above embodiment, and may be one or three or more, and the long electric heater 8 is curved or bent. According to a form, it sets suitably on the conditions which can support the electric heater 8 appropriately.

(G) In fixing the heater support 30 to the bottom plate member 50, the spacer 22 may be omitted. In this case, in a state where the heater support 30 is fixed to the bottom plate member 50, the drooping portion-side interval holding portion 36 and the receiving portion-side interval holding portion 37 only abut against the bottom plate member 50, and the pedestal portion 31 serves as the bottom plate. Since it does not contact the member 50, heat transfer from the electric heater 8 to the bottom plate member 50 and the peripheral wall member 60 is suppressed, and the temperature rise of the main body 1 can be suppressed.

(H) The specific example of the electric heating cooking appliance which can apply this invention is not limited to the bread maker illustrated in said embodiment. For example, it is possible to apply to various things such as an electric hot plate, an electric rice cooker, and an electric rice cooker having a baking function.

  As described above, it is possible to provide an electric heating cooker that can reliably support the electric heater on the bottom surface of the casing.

2 Bread case (heating case)
8 Electric heater 8p Opposing part 9 Screw type fixing means (fixing means)
30 heater support 31 base 32 hanging part 33 slit 34 heater receiving part 35 heater receiving recess 50 bottom plate member (bottom member)
52 Hanging part insertion hole (insertion hole)
53 Insertion part 54 Receiving part 60 Perimeter wall member (outer periphery member)
61 Overhang part (insertion hole cover part)
63 Holding part C Casing

Claims (5)

A casing in which an upper portion for accommodating a heating case for an object to be heated is opened, a long electric heater disposed on the bottom surface in a curved or bent state so as to go around the bottom surface of the casing, An electric heating cooker comprising: a heater support that supports an electric heater on the bottom surface of the casing; and a fixing means that fixes the heater support to the bottom surface of the casing,
The casing includes a bottom member to which the heater support is fixed by the fixing means, and an outer peripheral member to be fixed to the bottom member,
The heater support is fixed to the bottom member, and a base part facing the top surface of the bottom member, a hanging part extending downward from the base part, and a heater receiving part extending upward from the base part Configured with
The hanging portion of the heater support is provided with a slit that opens laterally and enters along a direction parallel to the platform,
An insertion hole through which the drooping portion of the heater support can be inserted into the bottom member and the heater support in a state in which the drooping portion is inserted can be rotated along the top surface of the bottom member. And an insertion portion that is inserted into the slit as the heater support rotates, and a receiving portion that receives the hanging portion and stops the rotation of the heater support.
A pressing member that sandwiches the hanging portion of the heater support between the outer peripheral member and the receiving portion in a state where the outer peripheral member is fixed to the bottom member and is received by the receiving portion of the bottom member. Electric heating cooker with a part.   The electric heating cooker according to claim 1, wherein the outer peripheral member is configured to have a frame shape or a cylindrical shape, and is configured to form a side peripheral surface of the casing. The electric heater is curved or bent so as to have a pair of opposed portions facing each other;
At least two of the heater support members are fixed to the bottom member in a state of being distributed to each of the pair of opposed portions of the electric heater,
The heater receiving recess for receiving the electric heater is opposite to the other facing portion side in a state where each heater support is fixed to the bottom member corresponding to one facing portion of the pair of facing portions. The electric heating cooking appliance of Claim 2 provided in the said heater receiving part of each heater support so that it may open sideways sideways.   In plan view, the receiving portion of the bottom member corresponding to the one opposing portion and the pressing portion of the outer peripheral member are located on the opposite side of the other opposing portion side with respect to the one opposing portion. The electric heating cooking device of Claim 3 comprised as follows.   The insertion hole covering part which covers the area | regions other than the area | region where the said hanging part of the said heater support in the said insertion hole exists in the said outer periphery member is provided in any one of Claims 2-4. Electric heating cooker.

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