JP2017042536A - rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice cooker capable of surely engaging on an outer peripheral end part of an outer lid, including an upper direction of the outer lid.SOLUTION: A rice cooker includes: a rice cooker body 1; and an outer lid 2 mounted on the rice cooker body and for covering an upper surface of the rice cooker body; and a metal cover body 3 for covering an outside surface of the outer lid. It also includes a plurality of holding members 31 which are separate members from the outer lid and the cover body, which are arranged between the outer lid and the cover body, which are fitted and locked in recess parts 2t of the outer lid and also which are engaged with an inside surface of the outer peripheral end part of the cover body, and which are fixed to the outer lid in a removable manner and which hold the cover body at the outer lid.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a rice cooker that covers a top surface of a rice cooker body with a lid having a metal cover and an outer lid covered with the cover.

  In the heat retaining pot in which a metal plate is mounted on the outer surface side of a non-metallic outer lid that forms the outside of the lid, a configuration in which a fixing portion that fixes the outer lid and the metal plate is provided inside the mounting portion of the operation panel; And the structure which winds the outer peripheral edge part of a metal plate inside in curl shape, forms a convex part, and engages this convex part with an outer cover is proposed (for example, refer patent document 1).

Japanese Patent Laid-Open No. 2002-443

  However, in the prior art, the outer peripheral end of the metal plate is curled inwardly to form convex portions, and each convex portion is inserted into the concave portion of the outer lid and temporarily fixed, and then the vicinity of the central portion of the outer lid In this configuration, the metal plate and the outer lid are fixed with a plurality of bolts. Because of such a configuration, the outer peripheral end portion of the outer lid cannot be reliably engaged, including the upper direction of the outer lid, so that the metal plate may be easily detached from the outer lid during thermal expansion.

  Accordingly, an object of the present invention is to provide a rice cooker that can solve the above-mentioned problems and can be reliably engaged at the outer peripheral end of the outer lid, including the upper direction of the outer lid. It is in.

  In order to achieve the above object, the present invention is configured as follows.

According to the first aspect of the present invention, the rice cooker body,
Covering the upper surface of the rice cooker body, and an outer lid attached to the rice cooker body;
A metal cover body covering the outer surface of the outer lid,
The outer lid and the cover body are separate members, arranged between the outer lid and the cover body, and fitted and locked in the recesses of the outer lid, and at the outer peripheral end of the cover body Provided is a rice cooker comprising a plurality of holding members that engage with an inner surface and are detachably fixed to the outer lid and hold the cover body on the outer lid.

  According to the first aspect of the present invention, the holding member is fixed to the outer lid while being engaged with the metal cover body, so that the outer end of the outer lid includes the upper direction of the outer lid. The metal cover body can be reliably engaged with the outer lid.

It is a disassembled perspective view of the rice cooker concerning embodiment of this invention. It is a top view of a rice cooker. It is a top view of the cover body of a rice cooker. It is a bottom view of the cover body of a rice cooker. It is a left view of the cover body of a rice cooker. It is a top view of the outer cover of a rice cooker. FIG. 7 is a cross-sectional view taken along line 7A-7A in FIG. It is an expanded sectional view of the arrow 7B part of Drawing 7A, and is in the state where the latching claw part was inserted in the penetration hole. It is an expanded sectional view of the state which forms a L-shaped bending part after the state which inserted the latching claw part of Drawing 7B into the penetration hole. It is an expanded sectional view of the state which forms a U-shaped bending part after the state where the latching claw part of Drawing 7B was inserted in the penetration hole. It is the 8A-8A sectional view taken on the line of FIG. It is an expanded sectional view of the arrow 8B part of FIG. 8A. It is an expanded sectional view of the arrow 8C part of FIG. 8A. It is the 9A-9A sectional view taken on the line of FIG. It is an expanded sectional view of the arrow 9B portion of FIG. 9A. It is an expanded sectional view of the arrow 9C part of FIG. 9A. It is an expanded sectional view of the arrow 9D part of FIG. 9A. It is a perspective view which shows the partially notched cross section which shows the structure of the hinge part vicinity. It is a perspective view which shows the partially notched cross section which shows the structure of the hinge part vicinity. It is a perspective view in the state where the holding member was arranged at six places of the outer lid. It is a perspective view of the state which removed the six holding members of FIG. 11 from the outer cover. It is an expansion perspective view of the part of the holding member in the state of FIG. It is an expansion perspective view of the part of the holding member in the state of FIG. It is a perspective view in the attachment posture of each holding member. It is a perspective view in the state where it tilted to the side of each holding member. It is a front view of each holding member. It is a right view of each holding member. It is a rear view of each holding member. It is sectional drawing of the 15-15 line | wire of FIG. 6 in the state which has arrange | positioned the holding member to the outer cover and covered the cover body. It is an expanded sectional view of the bottom part of FIG.

  Embodiments according to the present invention will be described below in detail with reference to the drawings.

  DESCRIPTION OF EMBODIMENTS Hereinafter, various embodiments of the present invention will be described before detailed description of embodiments of the present invention with reference to the drawings.

According to the first aspect of the present invention, the rice cooker body,
Covering the upper surface of the rice cooker body, and an outer lid attached to the rice cooker body;
A metal cover body covering the outer surface of the outer lid,
The outer lid and the cover body are separate members, arranged between the outer lid and the cover body, and fitted and locked in the recesses of the outer lid, and at the outer peripheral end of the cover body Provided is a rice cooker comprising a plurality of holding members that engage with an inner surface and are detachably fixed to the outer lid and hold the cover body on the outer lid.

  According to the first aspect, the holding member is fixed to the outer lid while being engaged with the metal cover body, so that the outer end of the outer lid is made of metal including the upper direction of the outer lid. The cover body can be reliably engaged with the outer lid.

  According to the 2nd aspect of this invention, the said several holding member provides the rice cooker as described in a 1st aspect arrange | positioned in the part of the front side of the said outer cover.

  According to the second aspect, since the front portion of the outer lid receives a large centrifugal force when the lid is opened and closed, it is necessary to securely hold and fix the outer lid and the cover body. For this reason, it is particularly effective to securely hold and fix the outer lid and the cover body by arranging a plurality of holding members on the front portion of the outer lid.

According to the third aspect of the present invention, the outer lid has a planar rectangular shape,
The said holding member provides the rice cooker as described in the 1st or 2nd aspect each arrange | positioned 2 each so that each corner | angular part of the front side part of the said outer cover may be pinched | interposed.

  According to the third aspect, when the outer lid has a rectangular planar shape, the outer lid and the cover body are securely held and fixed by the holding member so as to sandwich each corner of the front side portion of the outer lid. Thus, the outer lid and the cover body can be securely held and fixed with a small number and efficiency.

  According to the fourth aspect of the present invention, the holding member is a pin-shaped member having at least a head portion and a leg portion, and the head portion of the pin-shaped member is fitted and locked to the concave portion of the outer lid. The leg portion of the pin-shaped member extends toward the rice cooker main body, and the leg portion of the holding member protrudes from the outer lid side toward the cover body side and the cover body. The rice cooker as described in any one of the 1st-3rd aspect in which the engagement protrusion part engaged with an outer peripheral edge part is formed is provided.

  According to the fourth aspect, the head of the holding member is fitted and locked to the outer lid, and the outer lid and the cover body are stabilized by engaging the outer peripheral end of the cover body with the legs. And can be securely held and fixed.

  According to the fifth aspect of the present invention, the head portion of the holding member can be detached from the outer lid in a state where the engaging protrusion of the holding member is engaged with the outer peripheral end portion of the cover body. The rice cooker as described in the 4th aspect fixed is provided.

  According to the fifth aspect, when removing the cover body from the outer lid, after releasing the fixing in order to remove the head of the holding member from the outer lid, and removing the cover body from the outer lid, The plurality of holding members can be integrally removed from the outer lid, and the cover body is not deformed.

  According to the sixth aspect of the present invention, the inner surface of the leg portion of the holding member is formed as an inclined surface that contacts the outer surface of the outer lid, and the outer surface of the engaging protrusion of the leg portion is the The rice cooker as described in the 4th or 5th aspect which contacts the said inner surface of the said outer peripheral edge part of a cover body is provided.

  According to the sixth aspect, since the distance from the metal cover body to the outer lid and the holding member is constant (the holding member is not greatly convex as compared to the outer lid), the metal cover body is entirely When deformed, there is no local contact with other members.

According to the seventh aspect of the present invention, the outer lid has a planar rectangular shape, and the cover body has a planar rectangular shape,
On the outer peripheral end portions of the pair of long sides of the cover body, there are formed locking claws that are inserted into the through holes in the outer peripheral end portions of the pair of long sides of the outer lid and locked. In a state where the cover body is attached to the outer lid, a through hole forming portion outside the through hole of the outer lid is located outside the locking claw portion, and the locking claw portion is sandwiched therebetween. The rice cooker according to any one of the first to sixth aspects, in which the holding members are arranged on both sides.

  According to the seventh aspect, while the outer lid and the cover body are securely held and fixed, and the metal cover body is about to expand, it is suppressed by the through hole forming portion of the through hole of the outer lid. The swelling of the cover body can be suppressed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an exploded perspective view of a rice cooker according to an embodiment of the present invention. FIG. 2 is a plan view of the rice cooker. 3 to 5 are a plan view, a bottom view, and a left side view of the cover body of the rice cooker. FIG. 6 is a plan view of the outer lid of the rice cooker. 7A is a sectional view taken along line 7A-7A in FIG. FIG. 7B is an enlarged cross-sectional view of an arrow 7B portion in FIG. 7A, and shows a state in which the locking claw portion 3c is inserted into the through hole 2c. 7C and 7D are enlarged cross-sectional views of a state in which a bent portion is formed after the locking claw portion 3c of FIG. 7B is inserted into the through hole 2c. 8A is a sectional view taken along line 8A-8A in FIG. 8B and 8C are an enlarged sectional view of an arrow 8B portion of FIG. 8A and an enlarged sectional view of an arrow 8C portion of FIG. 8A. 9A is a sectional view taken along line 9A-9A in FIG. 9B, FIG. 9C, and FIG. 9D are an enlarged sectional view of the arrow 9B portion of FIG. 9A, an enlarged sectional view of the arrow 9C portion of FIG. 9A, and an enlarged sectional view of the arrow 9D portion of FIG. FIG. 10A and FIG. 10B are perspective views showing a partially cutaway cross section showing the configuration near the hinge portion.

  The rice cooker concerning embodiment of this invention covers the upper surface of the rice cooker main body 1 and the rice cooker main body 1 as shown in FIGS. 1-3, Comprising: The outer cover attached to the rice cooker main body 1 2 and a lid 4 having a metal flat rectangular cover 3 covering the outer lid 2.

  The outer lid 2 is made of a synthetic resin, for example, made of polypropylene, and is a flat rectangular lid member that covers the upper surface of the rice cooker body 1. A long and narrow rectangular through-hole 2c is formed at the center of the pair of long-side outer peripheral ends 2a of the outer lid 2, and the center of the pair of short-side outer peripheral ends 2b. Each has an engaging recess 2d.

  The cover body 3 is made of metal, for example, aluminum, and is a flat rectangular cover member that covers the outer surface of the outer lid 2.

  As shown in FIG. 4, FIG. 9A and FIG. 9B, in the center of each of the pair of short side outer peripheral ends 3b of the cover body 3, An insertion portion 3d as an example of a rectangular belt-like engagement portion is formed. As shown in FIG. 9B, each insertion portion 3 d of the cover body 3 is inserted into and engaged with each engagement recess 2 d of the outer lid 2, thereby restricting movement of the cover body 3 along the long side direction. Further, since the outward movement of each insertion portion 3d is restricted by the outer wall 2h of each engagement recess 2d, each insertion portion 3d of the metal cover body 3 with respect to the outer lid 2 at the time of thermal expansion is provided. Swelling can be suppressed by the outer wall 2h.

  Further, as shown in FIG. 4 and FIGS. 7A to 7C, the center of each of the pair of long-side outer peripheral ends 3 a of the cover body 3 penetrates through the through-hole 2 c of the outer lid 2. A vertically long rectangular band-like locking claw portion 3c to be stopped is formed. As shown in FIG. 7B, each locking claw portion 3c is inserted into each through hole 2c. With this configuration, since the outer wall (through hole forming portion 2k) that forms each through hole 2c is positioned outside each through hole 2c, the outer lid 2 is provided on the outer peripheral side of the cover body 3. Will be located. Therefore, the outer lid 2 can suppress the swelling of the metal cover body 3 with respect to the outer lid 2 during thermal expansion.

  In addition to simply inserting, as shown in FIG. 7C, after each locking claw portion 3c is inserted into each through hole 2c, the through hole forming portion 2j inside the through hole 2c of the outer lid 2 is used. It may be bent inwardly by approximately 90 degrees so as to wrap around to be bent into an L shape to form and lock an L-shaped bent portion 3m. If comprised in this way, the L-shaped bending part 3m of each latching nail | claw part 3c will engage with the through-hole formation part 2j inside the through-hole 2c of the outer cover 2, and will perform position control to an upward direction. Since the movement of each locking claw portion 3c in the outward direction is restricted by the through-hole forming portion 2k outside the through-hole 2c, a metal cover for the outer lid 2 at the time of thermal expansion The swelling of the body 3 can be suppressed.

  Instead of the L-shaped bent portion 3m, as shown in FIG. 7D, after each locking claw portion 3c is inserted into each through hole 2c, a through hole forming portion 2j inside the through hole 2c of the outer lid 2 is formed. It is also possible to bend and inward approximately 90 degrees twice so as to wrap around and form a U-shaped bent portion 3j bent into a U-shape to be locked. If comprised in this way, the U-shaped bending part 3j of each latching nail | claw part 3c will engage with the through-hole formation part 2j inside the through-hole 2c of the outer lid 2, and it will be both upward and inward and outward directions. In addition, the position restriction of each locking claw part 3c in the outward direction can be performed by the through hole forming part 2k outside the through hole 2c. Therefore, the swelling of the metallic cover body 3 with respect to the outer lid 2 during thermal expansion can be further suppressed.

  Therefore, the cover body 3 is attached to the outer lid 2, and each locking claw portion 3c is inserted and locked in each through hole 2c, and each insertion portion 3d engages with each engagement recess 2d. The outer through-hole forming portions 2k that form the respective through-holes 2c are positioned outside the respective locking claws 3c, and the outer walls that form the respective engaging recesses 2d are formed outside the respective insertion portions 3d. Since 2h is located, the outer lid 2 is located on the outer peripheral side of the cover body 3. Therefore, the outer lid 2 can suppress the swelling of the metal cover body 3 with respect to the outer lid 2 during thermal expansion.

  Here, it is peculiar to the following rice cookers that the arrangement position of the pair of locking claws 3c that lock the cover body 3 with respect to the outer lid 2 is set to the vicinity of the center of the outer peripheral end 3a on each long side. Because of the reason.

  The rice cooker according to the present embodiment is a pressure-type rice cooker, and a lid so that the front short side hook portion 25 and the rear short side hinge portion 26 of the lid 4 can counter pressure. 4 and the rice cooker body 1 are tightened at the ends on the short side of the front and back, so that the stress tends to act on the outer peripheral end portions 3a on the pair of long sides. Moreover, as will be described later, a steam cylinder 22, which is a passage for steam from the pan 21 of the rice cooker body 1, is disposed near the center of the cover body 3, and the outer lid 2 and the cover are covered with the steam pressure of the pan 21 during rice cooking. A large stress acts near the center of the body 3, and high-temperature steam heat starts to be conducted from near the center of the cover body 3. For these reasons, the outer lid 2 and the cover body are located in the vicinity of the position on the longitudinal extension line of the support column 3h between the operation panel placement through hole 3f and the steam tube placement through hole 3e of the cover body 3. 3 must be securely fastened in the upward and outward directions. In other words, in the rectangular planar cover body 3, the amount of deformation near the center of the pair of long-side outer peripheral end portions 3a tends to increase rapidly during cooking. Furthermore, when opening the lid body 4 with respect to the rice cooker body 1, the lid body 4 is vigorously opened by the large spring force of the spring 27 provided in the hinge portion 26, and the lid body 4 is opened at the opening / closing stop position of the lid body 4. In order to stop suddenly, a big centrifugal force acts on the cover body 4 rapidly. At this time, when the cover 4 is composed of the outer lid 2 and the cover 3 made of different materials, the centrifugal force acting on the two is different, so that the outer lid 2 and the cover 3 are securely connected to each other so as not to be separated. It is necessary to conclude to.

  For these reasons, the claw portions 3c are provided at both ends on the extension line of the support column 3h, and the outer lid 2 and the cover body 3 are at least near the center of the outer peripheral end portion 3a on the pair of long sides. In other words, it is necessary to be integrally locked and fixed so as to be fastened by a thick fastening band having a C-shape (see FIG. 7A).

  The configuration described above describes the relationship between the outer peripheral end portion of the cover body 3 and the outer lid 2, but the inner peripheral end portion of the cover body 3, that is, the inside of the steam discharge opening 23 as an example of the opening portion. The relationship between the peripheral end portion and the outer lid 2 is also configured as follows.

  First, the rice cooker body 1 includes a pan 21, and the lid body 4 includes a steam cylinder 22.

  The pot 21 is accommodated in the rice cooker body 1.

  The steam cylinder 22 is disposed on the lid 4 and discharges steam generated in the pot 21 to the outside of the rice cooker body 1. A steam tube housing recess 2e is formed from the central portion of the outer lid 2 of the lid 4 to the hinge side, and a steam discharge opening 23 is located above the pan 21 on the center side of the steam tube storing recess 2e. Is open. The steam discharge opening 23 communicates with a steam cylinder 22 that is detachably fitted in the steam cylinder housing recess 2 e, and steam generated in the pan 21 is transferred from the steam discharge opening 23 through the steam cylinder 22 to the rice cooker body 1. It can be discharged outside. An operation panel storage recess 2f is formed adjacent to the steam tube storage recess 2e from the center of the outer lid 2 to the side opposite to the hinge side, and the operation panel 24 is fitted into the operation panel storage recess 2f. Fixed.

  As shown in FIGS. 8A and 8C, the steam tube housing recess 2e is formed with a protruding wall 2n projecting upward from the periphery of the bottom of the steam tube housing recess 2e. Furthermore, a rectangular frame-shaped groove 2p is formed between the protruding wall 2n and the inner surface of the steam tube housing recess 2e.

  On the other hand, the cover body 3 is formed with a steam cylinder through hole 3e as an example of an opening facing the steam cylinder housing recess 2e, and the opening end of the steam cylinder through hole 3e is bent downward. Thus, a protruding portion 3p that protrudes and can be inserted into the groove 2p is formed. The protrusion 3p is preferably formed on the entire circumference of the opening end, but as an example, it is formed on the opening end of the steam cylinder through hole 3e excluding the notch 3s described later.

  Therefore, as shown in FIGS. 8A and 8C, in the state where the cover body 3 is attached to the outer lid 2, the protrusion 3 p at the opening end of the steam cylinder through hole 3 e of the cover body 3 A protruding wall 2n of the outer lid 2 is located between the protruding portion 3p and the steam cylinder 22 by being inserted into the groove 2p. For this reason, the steam that has entered the steam cylinder 22 is mainly discharged from the discharge port 22a (see FIGS. 1 and 2) of the steam cylinder 22, and between the side surface of the steam cylinder 22 and the protruding wall 2n of the outer lid 2. It passes between and is discharged outside. At this time, the steam mainly contacts the side surface of the steam cylinder 22 and the projecting wall 2n of the outer lid 2, and does not contact the edge of the projecting portion 3p of the metal cover body 3. Can be prevented.

  Here, the steam cylinder 22 needs to be washed frequently, and the user's hand frequently enters the steam cylinder housing recess 2e of the outer lid 2 into which the steam cylinder 22 is fitted. For this reason, there is a desire to prevent the user from being injured by preventing the edge of the metal cover body 3 from being exposed in the steam tube housing recess 2e. There is also a desire to prevent the occurrence of rust by not exposing the edge of the cover body 3 to the steam passage. Further, it is conceivable that the cover body 3 is bent to prevent the edge of the cover body 3 from being exposed to the steam passage. However, since the hinge portion 26 is disposed adjacent to the steam tube housing recess 2e, the edge is not formed. There is also a problem that it cannot be bent.

  Therefore, in order to prevent the edge of the metal cover body 3 from being directly exposed in the steam tube housing recess 2e of the outer lid 2 in which the steam tube 22 is stored, a protruding wall is provided around the bottom of the steam tube housing recess 2e. 2n is formed, and a rectangular frame-shaped groove 2p is formed between the protruding wall 2n and the inner surface of the steam tube housing recess 2e. With this configuration, the end edge of the protruding portion 3p of the metal cover body 3 is inserted into the groove 2p of the outer lid 2, and the end edge of the protruding portion 3p of the cover body 3 is set to the protruding wall of the outer lid 2. It can be covered with 2n. With such a configuration, the steam flow path can be surrounded by the projecting wall 2n and the inner surface of the steam tube housing recess 2e, and the cover body is disposed inside the steam tube housing recess 2e of the outer lid 2. Since the end edge of the protruding portion 3p at the end portion 3 is covered with the protruding wall 2n, the user's hand does not contact the end edge of the protruding portion 3p at the end portion of the cover body 3. Moreover, it is not necessary to carry out the bending process only by inserting the protruding portion 3p into the groove 2p. In order to prevent the end edge of the protruding portion 3p from being exposed to steam, it is sufficient that the height of the protruding wall 2n is such that the end of the metal cover body 3 is covered. Moreover, the front-end | tip of the outer peripheral wall 22a of the steam cylinder 22 is arrange | positioned above the front-end | tip of the protrusion wall 2n. As an effect configured in this way, when the outer peripheral wall 22a of the steam tube 22 is present on the upper portion of the protruding wall 2n that protects the end portion of the metal cover body 3, when viewed from the upper portion of the outer lid 2, The front end of the protruding wall 2n is hidden by the outer peripheral portion 22a, so that the appearance quality can be improved.

  Further, a plurality of holding members 31 are provided for holding and fixing the cover body 3 to the outer lid 2 so as to be removable. Hereinafter, this will be described in detail.

  FIG. 11 is a perspective view of a state in which holding members 31 are arranged at six locations on the outer lid 2 as an example. FIG. 12 is a perspective view showing a state where the six holding members 31 in FIG. 11 are removed from the outer lid 2. 13A and 13B are enlarged perspective views of a portion of the holding member 31 in the state of FIG. 11 and the state of FIG. 12, respectively. FIG. 14A to FIG. 14E are a perspective view in the mounting posture of each holding member 31, a perspective view in a state of being tilted sideways, a front view, a right side view, and a rear view. 15 is a cross-sectional view taken along line 15-15 of FIG. 6 in a state where the holding member 31 is disposed on the outer lid 2 and the cover body 3 is covered. 16 is an enlarged cross-sectional view of the bottom portion of FIG.

  The outer lid 2 has a planar rectangular shape, and a plurality of recesses for positioning, fitting and locking the holding members 31 are disposed at least on the front side of the outer lid 2. As an example, each of the recesses is arranged in two places so as to sandwich each corner 2 s of the front portion of the outer lid 2. In this embodiment, as shown in FIGS. 11 and 12, the holding members 31 fitted and locked in the recesses are arranged at two locations so as to sandwich each corner 2s of the front portion, and the cover It arrange | positions in six places in total so that it may arrange | position on the both sides of each latching claw part 3c of the body 3. FIG.

  As shown in FIGS. 11 to 13B, as an example of each concave portion of the outer lid 2, a holding member head fitting concave portion (first concave portion) 2 t disposed on the upper surface side of the outer lid 2, It is comprised by the vertically long leg part recessed part (2nd recessed part) 2w arrange | positioned in the side surface, and was formed below and adjoining the 1st recessed part 2t. The first recess 2t is a recess in which a part of the upper surface of the outer lid 2 is recessed. The second recess 2 w is a recess in which a part of the side surface of the outer lid 2 is recessed. The first recess 2t has a penetrating through hole 2u. A pair of positioning protrusions 2y are formed on the upper surface around the recess 2t with a gap therebetween. The outer surface of the second recess 2w is an inclined surface, and a positioning projection 2x is projected from the bottom surface.

  On the other hand, as shown in FIGS. 11 to 16, each holding member 31 is a separate member from the outer lid 2 and the cover body 3, and is disposed between the outer lid 2 and the cover body 3, and the outer lid 2. The holding member head fitting recessed portion 2t as an example of the recessed portion is fitted and locked, engaged with the inner surface of the outer peripheral end portion of the cover body 3, and fixed to the outer lid 2 so as to be removable.

  More specifically, each holding member 31 is a pin-shaped member having at least a head portion 31a and a leg portion 31e. The head 31a at one end of the pin-shaped member is fitted and locked to the first recess 2t of the outer lid 2, and the leg 31e at the other end of the pin-shaped member extends toward the rice cooker body. . The leg 31e is formed with an engaging protrusion 31f that protrudes from the outer lid side toward the cover body side and engages with the outer peripheral end of the cover body 3.

  More specifically, each holding member 31 includes a cylindrical head portion 31a, a narrow neck portion 31c, a leg portion 31e, and an engaging protrusion 31f.

  The cylindrical head portion 31a is fitted and locked in the first recess 2t. The head portion 31a has a screw hole 31b that can communicate with the through hole 2u of the first recess 2t. Therefore, the screw 33 inserted into the through hole 2u from the inside of the outer lid 2 is screwed into the screw hole 31b of the head 31a so that the outer lid 2 and each holding member 31 can be detachably fixed from the inside. .

  The narrow neck portion 31c is connected to a side portion of the cylindrical head portion 31a, and a pair of cuts 31d are formed on both sides. When the head portion 31a is fitted and locked in the recess 2t, the pair of positioning projections 2y formed on the upper surface around the recess 2t enters the pair of cuts 31d in the narrow neck portion 31c, and each holding member 31 is moved to the first recess 2t. Position with respect to.

  The leg portion 31e extends downward from the narrow neck portion 31c and is fitted into the second recess 2w. The inner side surface of the leg portion 31 e is formed as an inclined surface that contacts the inclined outer surface of the second recess 2 w of the outer lid 2.

  At the lower end of the outer surface of the leg portion 31e, there is an engaging projection 31f that protrudes with an inclined surface that is inclined outward at a larger angle than the inclined surface that is the outer surface of the leg portion 31e. Therefore, when the cover body 3 is put on the outer lid 2, the curved portion 3t curved inwardly at the outer peripheral end of the cover body 3 is inclined from the inclined surface which is the outer surface of the leg portion 31e by the engaging protrusion 31f. When the holding member 31 is fixed to the outer lid 2 with each screw 33 after being guided to the outside and bent along the outer side surface, and then engaged with the engaging protrusion 31f, it moves upward. It is possible to regulate.

  Note that the outer surface of the engaging protrusion 31f of each leg 31e is in contact with the inner surface of the curved portion 3t at the outer peripheral end portion of the cover body 3, and the side surface of the cover body 3 is in contact with the holding member 31. The portions other than the engaging protrusions 31f of the leg portions 31e are not in contact, and the cover body 3 is not inadvertently deformed.

  Further, as described above, the inner surface of the leg portion 31e of each holding member 31 is formed as an inclined surface that contacts the outer surface of the outer lid 2, and the outer surface of the engaging protrusion 31f of the leg portion 31e is the cover body 3. It is comprised so that it may contact with the inner surface of the outer peripheral edge part. Therefore, since the distance from the metal cover body 3 to the outer lid 2 and each holding member 31 is constant (each holding member 31 is not greatly convex as compared to the outer lid 2), the metal cover body 3 is entirely When it deforms automatically, it does not contact other members locally.

  Furthermore, a positioning recess 31g into which the positioning protrusion 2x on the bottom surface of the second recess 2w can be inserted is formed at the lower end of the engagement protrusion 31f.

  Accordingly, the head portions 31a of the holding members 31 are inserted into the first recesses 2t of the outer lid 2, and the pair of upper positioning protrusions 2y on the upper surface surrounding the first recess 2t are paired with the notches 31d of the narrow neck portion 31c. The upper part of each holding member 31 is positioned with respect to the outer lid 2. Further, at this time, the lower positioning projection 2x of the bottom surface of the second recess 2w enters the positioning recess 31g, and the lower portion of each holding member 31 is positioned with respect to the outer lid 2.

  In such a state, the cover body 3 is put on the outer lid 2, and the engagement protrusions 31 f of each holding member 31 are engaged with the inner surface of the curved portion 3 t at the outer peripheral end of the cover body 3 to temporarily fix the cover body 3. I do.

  After temporarily fixing in this way, as described above, each locking claw portion 3c is inserted into each through hole 2c, bent and locked, and the insertion portion 3d is engaged with the engaging recess 2d.

  Thereafter, from the inside of the outer lid 2, each screw 33 is inserted into each through hole 2u and then screwed into the screw hole 31b of the head portion 31a of each holding member 31, and from the inside, the outer lid 2 and each holding member 31 are Remove and fix.

  As a result, in addition to the locking at each locking claw portion 3c and the engagement at the insertion portion 3d, two locations sandwiching each corner portion 2s and two locations sandwiching each locking claw portion 3c (however, 1 The overlapping protrusions 31f of the holding members 31 are engaged with the inner surface of the curved portion 3t of the outer peripheral end portion of the cover body 3 at a total of six locations. , The upper cover 2 can be reliably engaged, including the upper direction. Since the holding member 31 engages with the holding member 31 at two positions sandwiching the respective locking claws 3c at the center of the pair of long-side outer peripheral ends 3a, the pair of long-side outer peripheral ends 3a Compared with the case where it latches and holds only with the pawl part 3c, it can hold more stably.

  When releasing the fixing of the cover body 3 and the outer lid 2 by maintenance or the like, each holding member 31 is removed by removing the screws 33 and then pulling the cover body 3 upward with respect to the outer lid 2. At the same time, the cover body 3 can be easily removed from the outer lid 2. That is, when the cover body 3 and the outer lid 2 are disengaged, the metal cover body 3 is detached together with the holding members 31, so that the holding body 3 is not deformed and each holding member is removed. 31 can be removed without being damaged, and all can be reused, which is suitable for maintenance and the like.

  The outer side surface 3g of the cover body 3 is formed to be flush with the outer side surface 2g of the outer lid 2 or to protrude outward from the outer side surface 2g of the outer lid 2 (FIG. 7B). ~ See FIGS. 7D, 8B, 9B, etc.). For this reason, when the rice cooker is viewed from above, the outer lid 2 is not visible, and only the metal cover body 3 covering the outer lid 2 is visible, thereby improving the design.

  According to the embodiment, each holding member 31 is fixed to the outer lid 2 while being engaged with the metal cover body 3, so that the upper end of the outer lid 2 includes the upper direction of the outer lid 2. Thus, the metal cover body 3 can be reliably engaged with the outer lid 2. Further, when the engagement with the outer lid 2 is released, the metal cover body 3 can be removed together with the holding members 31 and can be removed without deforming the cover body 3.

  Moreover, since each holding member 31 is disposed in the front portion of the outer lid 2, the following effects are obtained. Since the front part of the outer lid 2 receives a large centrifugal force when the lid is opened and closed, it is necessary to securely hold and fix the outer lid 2 and the cover body 3. For this reason, in particular, if a plurality of holding members 31 are arranged in the front portion of the outer lid 2 and the outer lid 2 and the cover body 3 are securely held and fixed by the plurality of holding members 31, the lid body can be opened and closed. Can sufficiently withstand the large centrifugal force of time.

  Further, the outer lid 2 has a planar rectangular shape, and each holding member 31 is disposed at two locations so as to sandwich the respective corners 2s of the front side portion of the outer lid 2, so that the following is performed. There is a great effect. When the outer lid 2 has a rectangular planar shape, a small number can be obtained if the outer lid 2 and the cover body 3 are securely held and fixed by the holding member 31 so as to sandwich the respective corner portions 2s of the front portion of the outer lid 2. The holding member 31 can securely hold and fix the outer lid 2 and the cover body 3 efficiently.

  Further, a through hole forming portion 2k outside the through hole 2c of the outer lid 2 locked to the locking claw portion 3c of the cover body 3 and an outer wall 2h of the engaging recess 2d engaged with the insertion portion 3d are provided. Since it exists outside the metal cover body 3, the swelling of the metal cover body 3 with respect to the outer lid 2 at the time of thermal expansion can be suppressed by the outer through-hole forming portion 2k and the outer wall 2h. Therefore, the swelling of the metal cover body 3 with respect to the outer lid 2 at the time of thermal expansion can be suppressed. Therefore, for example, even if there is a portion where the shape is abruptly changed so that a convex portion cannot be formed in the conventional technique, the bulge of the metal cover body 3 with respect to the outer lid 2 at the time of thermal expansion is changed to the through hole forming portion 2k. The outer peripheral end of the metal cover body 3 can be protected.

  Further, since the outer side surface 3g of the metal cover body 3 is disposed outside the outer side surface 2g of the outer cover 2 made of synthetic resin, the appearance quality can be improved.

  In addition, this invention is not limited to the said embodiment, It can implement in another various aspect.

  For example, as a first modification of the embodiment, two engaging recesses 2d and two insertion portions 3d may be arranged one by one instead of two. That is, the engaging recess 2d and the insertion portion 3d are, for example, a central portion of the outer peripheral end portion 2b on the pair of short sides and a central portion of the outer peripheral end portion 3b on the pair of short sides of the cover body 3, respectively. In the hinge part 26 which is formed but on the short side of one of the pair of short sides, the outer cover 2 and the cover body 3 are connected by the configuration of the hinge part 26 itself, and the engagement recess You may make it abbreviate | omit arrangement | positioning of 2d and the insertion part 3d. Therefore, in this example, one engagement recess 2d and one engagement recess 2d and one center of the outer periphery end 2b and the center of the outer periphery 3b on the short side opposite to the hinge 26 are provided. The insertion part 3d is arranged.

  Moreover, you may comprise as follows as a 2nd modification of the said embodiment. In other words, in the vicinity of the hinge portion 26 around the steam cylinder through hole 3e of the cover body 3, the protruding portion 3p is not formed, and the portion where the cover body 3 is not fitted to the outer lid 2 is formed. is there. This portion may be fitted with another member. Specifically, as shown in FIGS. 2 to 4, 6, 10 </ b> A, and 10 </ b> B, a planar semicircular shape is formed in the vicinity of the hinge portion 26 around the steam cylinder through hole 3 e of the cover body 3. The notch 3s and the narrow part 3r are formed. Since the narrow portion 3r is in the vicinity of the hinge portion 26 and has a narrow width, the protruding portion 3p cannot be three-dimensionally formed at the end portion. Therefore, the narrow width portion 3r is held by a J-shaped narrow width support portion 2r formed at a corresponding position of the outer lid 2 from the lower side, and is a member different from the outer lid 2 and the cover body 3. A flat semicircular end cover 29 is arranged so as to cover the notch 3s and the narrow portion 3r. The end cover 29 has a curved arcuate flange portion 29b having an L-shaped cross section, and the flange portion 29b covers the narrow width portion 3r from above so as to wrap the narrow width portion 3r from above. . On the back surface of the end edge of the end cover 29 on the steam cylinder through hole 3e side, there is an engagement protrusion 29a that can be engaged with the engagement recess 2ea on the hinge side end of the steam cylinder housing recess 2e. Yes. As a result of such a configuration, the upper and lower end edges of the narrow width portion 3r are wrapped by the narrow width support portion 2r and the flange portion 29b so that the vapor does not contact the end edge of the narrow width portion 3r.

  Accordingly, the opening end near the steam cylinder 22 is covered with an end cover 29 which is a separate member, and by engaging with the outer lid 2, the steam is prevented from hitting the opening end where the protruding portion 3p is not formed. In addition, by fitting the metal cover body 3 and the outer lid 2 with the end cover 29, the narrow portion 3r of the metal cover body 3 can be prevented from floating.

  In addition, it can be made to show the effect which each has by combining arbitrary embodiment or modification of the said various embodiment or modification suitably. In addition, combinations of the embodiments, combinations of the examples, or combinations of the embodiments and examples are possible, and combinations of features in different embodiments or examples are also possible.

  The rice cooker concerning this invention can be engaged reliably including the upper direction of an outer cover in the outer peripheral edge part of an outer cover, and is useful as a rice cooker for home use or business.

DESCRIPTION OF SYMBOLS 1 Rice cooker main body 2 Outer lid 2a Long side outer peripheral end 2b Short side outer peripheral end 2c Through hole 2d Engagement recess 2e Steam tube storage recess 2ea Engagement recess 2f Operation panel storage recess 2g Outside side surface 2h Outside Wall 2n protruding wall 2p groove 2r narrow support portion 2s front corner 2t holding member head fitting recess (first recess)
2u Through hole 2w Leg fitting recess (second recess)
2x Lower positioning projection 2y Upper positioning projection 3 Cover body 3a Long side outer peripheral end 3b Short side outer peripheral end 3c Locking claw portion 3d Insertion portion (an example of an engagement portion)
3e Steam cylinder through hole 3f Operation panel placement through hole 3g Outside side surface 3h Strut part 3j U-shaped bent part 3m L-shaped bent part 3p Protruding part 3r Narrow part 3s Notch part 3t Curved part 4 Lid 21 Pan 22 Steam cylinder 22a Outer wall of steam cylinder 23 Steam discharge opening 24 Operation panel 25 Hook part 26 Hinge part 27 Spring 29 End cover 29a Engaging convex part 31 Holding member 31a Head part 31b Screw hole 31c Narrow neck part 31d Cut 31e Leg part 31f Engaging protrusion part 31g Positioning concave part 33 Screw

Claims (7)

The rice cooker body,
Covering the upper surface of the rice cooker body, and an outer lid attached to the rice cooker body;
A metal cover body covering the outer surface of the outer lid,
The outer lid and the cover body are separate members, arranged between the outer lid and the cover body, and fitted and locked in the recesses of the outer lid, and at the outer peripheral end of the cover body A rice cooker comprising a plurality of holding members that engage with an inner surface and are detachably fixed to the outer lid and hold the cover body on the outer lid.   The rice cooker according to claim 1, wherein the plurality of holding members are disposed in a front portion of the outer lid. The outer lid has a planar rectangular shape;
The said holding member is a rice cooker of Claim 1 or 2 arrange | positioned 2 each so that each corner | angular part of the front side part of the said outer cover may be pinched | interposed.   The holding member is a pin-shaped member having at least a head portion and a leg portion, and the head portion of the pin-shaped member is fitted and locked to the concave portion of the outer lid, and the pin-shaped member A leg part is extended toward the rice cooker body side, and an engaging protrusion that projects from the outer lid side toward the cover body side and engages with the outer peripheral end of the cover body on the leg part of the holding member. The rice cooker as described in any one of Claims 1-3 in which the part is formed.   The said head of the said holding member is detachably fixed to the said outer cover in the state which the said engaging protrusion of the said holding member engaged with the said outer peripheral edge part of the said cover body. Rice cooker.   An inner side surface of the leg portion of the holding member is formed as an inclined surface that contacts an outer side surface of the outer lid, and an outer surface of the engagement protrusion of the leg portion is an inner surface of the outer peripheral end portion of the cover body. The rice cooker of Claim 4 or 5 which contacts with. The outer lid has a planar rectangular shape, and the cover body has a planar rectangular shape,
On the outer peripheral end portions of the pair of long sides of the cover body, there are formed locking claws that are inserted into the through holes in the outer peripheral end portions of the pair of long sides of the outer lid and locked. In a state where the cover body is attached to the outer lid, a through hole forming portion outside the through hole of the outer lid is located outside the locking claw portion, and the locking claw portion is sandwiched therebetween. The rice cooker according to any one of claims 1 to 6, wherein the holding members are arranged on both sides.

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