JP4823793B2 - Household appliances - Google Patents

Description

  The present invention relates to household electric appliances such as rice cookers and electric pots.

  Prior art document information related to the home appliance of the present invention includes the following.

JP 2001-178623 A

  In this patent document, in a rice cooker having a lid that is rotatably attached to the rice cooker body and is always biased in the opening direction by a hinge spring, when the lid is opened, the lid is more than necessary. In other words, there is described a configuration in which it is possible to prevent the parts constituting the exterior body from being damaged or the wiring passing through the hinge connection portion from being broken.

  Specifically, a step is provided on the cover that covers the hinge connecting portion, and the upper surface extending in the horizontal direction of the step is used as a stopper portion with which the rear edge of the upper cover of the lid abuts in the vertical direction. In addition, the column of the prior art in this patent document describes a configuration in which a stopper portion in which the rear end edge of the lower cover of the lid body abuts in the horizontal direction is provided at the front portion of the hinge connection portion.

  However, in the lid stop structure in this patent document, when a part of the lid is stopped by a stopper portion that receives the lid in the vertical direction, the openable angle of the lid varies from product to product due to variations in assembly accuracy of parts. There is a problem. In addition, when stopping a part of the lid body with the stopper portion that receives the horizontal direction, since the force is received on the surface that is the thickness of the component part of the lid body or the hinge connection portion, the parts that constitute the exterior body are There is a problem of damage.

  The present invention has been made in view of conventional problems, and it is an object of the present invention to provide a household electric product that can disperse the force generated at the time of opening and prevent breakage, and can secure an equivalent opening position for each product. It is what.

In order to solve the above problems, a household electrical appliance of the present invention includes a device main body having an opening, and a lid that is rotatably attached to the device main body and closes the opening so as to be openable and closable. In household electrical appliances in which the hinge connection part of the device main body and the connection part of the lid body are rotatably connected, the lid connection body is positioned at the hinge connection part so as to extend vertically upward. An elastic portion that abuts and brakes the opening, and a first stopper portion that receives and receives the lid from the horizontal direction when the lid is opened , in the vicinity of the hinge connecting portion or the hinge connecting portion; A second stopper portion that contacts and receives the lid body from the vertical direction ; and when the lid body is opened, the lid body abuts against the elastic portion and is braked; Abutting and opening Is positioned location, the further application of force in the opening direction on the lid in this state, the lid is configured to abut the second stopper portion.

In the household electric product of the present invention, the first stopper portion that receives and receives the lid in the horizontal direction and the second stopper portion that receives and receives the lid in the vertical direction are provided. The force generated at times can be distributed at each stopper. Therefore, breakage of the component parts can be prevented, and the opening position of the lid body can be accurately positioned by the first stopper portion that receives and receives the lid body in the horizontal direction . Further, when the lid is opened, the lid is brought into contact with the elastic portion and braked, and is then brought into contact with the first stopper portion and positioned at the open position. In this state, when a force is further applied to the lid in the opening direction. Since the lid is configured to abut against the second stopper portion, the open position of each product can be made to coincide with each other, and the strength of the hinge connection portion can be further improved.

Specifically, the second stopper portion has a vertical wall portion for resisting a downward load caused by receiving the lid body from above and a substantially inverted V shape with respect to the vertical wall portion. It is preferable that it consists of a crossing part with the curved wall part which disperse | distributes the load added to the said perpendicular | vertical wall part.

Further, the hinge connecting portion has bearing portions on both sides that allow the hinge pins to pass therethrough, a cover portion that is located on the rear side of these bearing portions, and a front wall portion that is located on the front side of the bearing portion, and the elastic portion Is preferably provided so as to extend from the center of the upper end of the front wall portion of the hinge connection portion to the cover portion.

Furthermore, it is preferable that the first stopper portion is constituted by a front end edge extending in the vertical direction in the bearing portion, and the second stopper portion is constituted by a tip edge extending in the horizontal direction in the cover portion.

Further, the outer peripheral wall of the lid, said has a rim extending in a vertical direction in a state of closing the lid, Rukoto provided the abutment rib-like contact with the second stopper section is preferred.
In this case, it is preferable that the contact portion is provided at a symmetrical position with respect to a center line extending in a direction orthogonal to the axis from the center of the hinge pin.
If it does in this way, the contact area in a 2nd stopper part can be increased as desired by providing a some contact part with respect to the cover body which makes | forms the curved shape.

  Furthermore, it is preferable that the hinge connection portion is provided integrally with the exterior body of the device main body. If it does in this way, the intensity | strength of a hinge connection part can be improved and the error of the opening angle of the cover body accompanying an assembly | attachment error can be reduced.

In the household electric product according to the present invention, the elastic portion that brakes the opening of the lid, the first stopper portion that receives and receives the lid in the horizontal direction, and the second stopper portion that receives and receives the lid in the vertical direction Since the force generated when the lid is opened can be dispersed , damage to the components can be prevented and the opening position of the lid can be accurately positioned.

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

  1 and 2 show a rice cooker 10 that is a household electrical appliance according to an embodiment of the present invention. The rice cooker 10 includes a rice cooker body 12 that detachably accommodates the rice cooker 11 and a lid 36 that closes the upper end opening of the rice cooker body 12.

  As shown in FIG. 2, the rice cooker main body 12 includes a body 13 made of a metal (stainless steel) body having a mirror finish, a bottom body 15 disposed on the bottom of the body 13, and an upper end of the body 13. An exterior body having an annular shoulder body 17 disposed in the opening is provided.

  The body 13 has a substantially cylindrical shape in which the diameter of the lower portion is gradually reduced by drawing a metal plate. A flange portion 14 that protrudes outward in the horizontal direction is provided at the upper end edge of the body 13 in order to fix the shoulder body 17.

  The bottom body 15 is made of a flame-retardant and non-conductive resin having a saucer shape disposed in the lower part of the body 13, and leg portions 16 projecting in a substantially spherical shape in the circumferential direction on the bottom. It is provided at equal intervals.

  As shown in FIGS. 3 and 4, the shoulder body 17 is made of resin and fixed to the flange portion 14 of the body 13 by screwing. The shoulder body 17 is provided with an opening 18 for detachably mounting the rice cooking pot 11 at the center thereof. Further, a lock claw portion 19 for locking the lid body 36 so as not to be opened is provided on the front side of the shoulder body 17. The shoulder body 17 is formed so as to protrude outward from the body 13, and an operation panel portion 20 is provided on the front side of the protruding portion. The operation panel unit 20 is provided with separate operation members 21a to 21e in holes provided in the shoulder body 17, and a spacer set 22 is provided on the back (inside) of these operation members 21a to 21e. A switch board 23 on which a switch is mounted is disposed on the back of the spacer set 22.

  Further, on the back side of the shoulder body 17, there is a hinge connection portion 26 that pivotally attaches a lid body 36, which will be described later, with a hinge pin 24 so that the lid body 36 can be opened and closed, and biases the lid body 36 in the opening direction with a pair of hinge springs 25, 25. It is provided integrally. The hinge connection portion 26 has a substantially rectangular shape in a plan view including bearing portions 27 on both sides, a cover portion 28 located on the rear side of the bearing portions 27, and a front wall portion 29 located on the front side of the bearing portion 27. It consists of a frame. The front end edge of the bearing portion 27 is a straight edge extending in the vertical direction which is the vertical direction, and a first stopper portion whose upper portion receives the lid body 36 in the horizontal direction which is the lateral direction when the lid body 36 which will be described later is opened. 30 is configured. A tip edge of the cover portion 28 is formed of a slightly upward curved arc edge extending in a substantially horizontal direction, and a part thereof constitutes a second stopper portion 31 that receives the lid body 36 in the vertical direction when the lid body 36 is opened. To do. Specifically, the cover portion 28 disperses the load applied to the vertical wall portion 28a and the vertical wall portion 28a for resisting the downward load caused by receiving the lid body 36 from the vertically upper side, and has a decorative appearance. And a curved wall portion 28b having a substantially inverted V shape. The second stopper portion 31 formed by the intersection of the wall portions 28a and 28b has a second contact portion 58 of the lid body 36 after the first contact portion 57 of the lid body 36 abuts on the first stopper portion 30. Are set so as to contact each other. Moreover, the upper end edge of the cover part 28 which comprises the 2nd stopper part 31 leaves | separates to the orthogonal | vertical direction from the axial center of the hinge pin 24 by comprising as an edge curved (projected) upwards as much as possible without impairing an external appearance. It is constituted so as to come into contact with the lid body 36 at a certain position.

  Further, the hinge connection portion 26 of the present embodiment is provided with an elastic portion 32 that extends from the center of the upper end of the front wall portion 29 to the intermediate portion of the cover portion 28 and brakes the opening of the lid body 36 by the hinge spring 25. . The elastic portion 32 includes an elastic contact portion 33 that extends upward from the front wall portion 29 and contacts the lid 36, and a substantially L-shaped elastic support portion 34 that curves downward from the elastic contact portion 33. Have.

  As shown in FIG. 1, an inner body 35 extending downward from the opening 18 of the shoulder body 17 is disposed inside the exterior body of the rice cooker body 12 including the body 13, the bottom body 15, and the shoulder body 17. In addition, a substantially bowl-shaped heating plate (not shown) provided with a heater is provided at the bottom of the inner body 35, and a temperature sensor (see FIG. 5) for detecting the temperature of the rice cooker 11 at the center of the heating plate. (Not shown) is arranged to penetrate.

  The lid 36 is pivotally attached to the rice cooker main body 12 so that it can be opened and closed at the hinge connection portion 26 on the back side, and specifically, the opening 18 of the rice cooker main body 12, specifically, the rice cooker 11 mounted inside. It has a circular shape in plan view that closes the opening edge in a sealed state, and includes a first lid member 37, a second lid member 59 disposed above the first lid member 37, and the second lid member 59. And a decorative cover 68 disposed on the upper surface.

  As shown in FIGS. 3 to 5, the first lid member 37 is made of a resin having a circular shape in a plan view covering the concave portion at the upper end including the opening 18 of the shoulder body 17. The first lid member 37 has an upwardly raised shape, and an outer peripheral edge 39 protruding outward from the lower end edge of the raised surface 38 is formed in a circular shape slightly smaller than a decorative cover 68 described later, It is configured not to be visible from the outside. On the upper surface of the first lid member 37, reinforcing ribs 40 that abut on the lower surface of a second lid member 59, which will be described later, project so as to form a lattice shape in plan view. Further, the first lid member 37 is provided with a screw insertion hole 41, and an inner lid attaching portion 42 is provided at the lower portion. As shown in FIG. 1, the inner lid 43 attached to the inner lid attaching portion 42 is provided with a seal member 45 that seals the opening edge of the rice cooker 11 on the outer peripheral portion of the metal inner lid main body 44. The exhaust member 46 that enters the exhaust portion 63 of the second lid member 59 to be described later is disposed.

  The raised surface 38 on the front side of the first lid member 37 is provided with a bearing portion 48 that rotatably receives an operation button 47 for opening the lid 36. A through-hole 49 through which the lock portion 47 a of the operation button 47 passes is provided below the bearing portion 48. Further, on the back side of the bearing portion 48, there is provided an operation button arrangement portion 50 made of a rectangular space where the reinforcing rib 40 is not provided. Further, a recess 52 for accommodating the kick spring 51 is provided on the back of the operation button arrangement portion 50.

  In addition, an exhaust cylinder portion 53 connected to the exhaust portion 63 of the second lid member 59 is provided on the back side of the first lid member 37, and a connection for opening and closing the hinge connection portion 26 on the back portion of the first lid member 37 is provided. Portions 55 and 55 are provided. The exhaust cylinder portion 53 is provided with a locking portion 54 that hooks the urging end portions of the pair of hinge springs 25 so as to extend on both sides. The other biasing end portion of the hinge spring 25 is locked to the vertical wall portion 28 a of the hinge connection portion 26. The connecting portions 55, 55 are formed of a pair of plates integrally protruding outward from the raised surface 38 so as to be positioned outside the bearing portion 27 at the hinge connecting portion 26 of the shoulder body 17. A reinforcing plate portion 56 extending from the lower end edge to the outer peripheral edge portion 39 is provided outside the connection portions 55, 55, and a locking portion for a second lid member 59 described later is provided on the reinforcing plate portion 56. Yes. Further, a first abutment that extends toward the outer peripheral edge of the raised surface 38 and that abuts the first stopper portion 30 of the hinge connection portion 26 in the horizontal direction when the lid body 36 is opened, inside the connection portions 55 and 55. A portion 57 is provided. Furthermore, a pair of second abutments forming a rib shape having an edge extending in a substantially vertical direction from the vicinity of the lower end is formed on the raised surface 38 which is the outer peripheral wall of the first lid member 37 positioned between the connecting portions 55 and 55. The parts 58 and 58 are provided integrally. The second contact portions 58 and 58 are provided at symmetrical positions with respect to a center line extending in the front direction perpendicular to the axis from the center of the hinge pin 24 penetrating between the shaft holes 55a and 55a of the connection portion 55. Yes. As described above, the second contact portions 58 and 58 are configured to contact the second stopper portion 31 in the vertical direction after the first contact portion 57 contacts the first stopper portion 30. The protrusion amount T to the back side is set.

  The second lid member 59 is made of resin that is fixed to the outside (upper) side of the first lid member 37 by screws, and as shown in FIG. At a position corresponding to the screw insertion hole 41 of the first lid member 37, a cylindrical screw fastening portion 60 for tightening the screw is provided. A plurality of concentric annular ribs 61 and radial ribs 62 extending radially from the centers of the annular ribs 61 are provided on the upper surface of the second lid member 59. Further, on the back side of the second lid member 59, an exhaust part 63 having a fan shape is provided so as to cover the hinge connection part 26 of the shoulder body 17 and the exhaust cylinder part 53 and the connection part 55 of the first lid member 37. It has been. Further, a side wall portion 64 that extends vertically downward is provided on the side surface of the second lid member 59, and an elastic locking piece 65 that protrudes to curve downward is provided on the side wall portion 64. Note that the outer peripheral edge on the front side of the second lid member 59 constitutes a wide locking piece 66 that hardly has elasticity. In addition, an exposed portion 67 for exposing the operation button 47 disposed on the bearing portion 48 of the first lid member 37 is provided in the center on the front side of the second lid member 59.

  The decorative cover 68 is made of metal (stainless steel) with a mirror finish like the body 13, and covers the entire surface of the lid 36 except the exhaust part 63 of the second lid member 59 and the operation button 47 in the exposed part. It is the shape of covering. The decorative cover 68 has a circular shape in a plan view that curves upward, and is provided with a fan-shaped notch 69 at a position corresponding to the exhaust part 63 of the second lid member 59 and a position corresponding to the exposed part. Is provided with an exposure hole 70. Further, an engaging claw 71 that protrudes further downward from the tip of the folded portion is provided at the top that is the inner end closest to the center in the notch 69 and the inner end that is closest to the center in the exposure hole 70. . The outer peripheral edge excluding the notch 69 is provided with a flange portion 72 that protrudes radially inward in the horizontal direction.

  In the present embodiment, the raised surface 38 of the lid body 36 is elastically applied in a state where the lid body 36 is opened approximately 60 degrees around the hinge connection portion 26 from a closed state extending in a substantially horizontal direction with respect to the rice cooker body 12. It abuts against the contact portion 33 and brakes the opening speed by the hinge spring 25. Then, the first abutting portion 57 of the lid body 36 abuts on the first stopper portion 30 of the shoulder body 17 in a state opened to approximately 90 degrees. From this state, the cover 36 is configured to come into contact with the second stopper portion 31 when tilted by about 5 degrees toward the back side.

  In the rice cooker 10 configured as described above, when the user operates the operation button 47 downward against the urging force of the kick spring 51, the lock between the lock portion 47a and the lock claw portion 19 of the shoulder body 17 is released. As a result, the lid 36 is released by pushing up the locking portion 54 provided on the first lid member 37 by the biasing force of the hinge springs 25, 25.

  Then, when the opening of the lid body 36 proceeds, the elastic portion 32 comes into contact with the raised surface 38 of the first lid member 37 so that the opening speed (force) is braked. Thereafter, as shown in FIGS. 6 and 7, the first contact portion 57 of the first lid member 37 contacts the first stopper portion 30 of the shoulder body 17 so as to receive a force in the horizontal (lateral) direction. As a result, the lid 36 is opened so as to extend in a substantially vertical direction.

  In this open state, the opening position of the lid body 36 can be accurately positioned by the first stopper portion 30 that receives the lid body 36 sideways. Further, in this state, when the user applies a force in a direction to further open the lid body 36, the second contact portion 58 of the first lid member 37 further contacts the second stopper portion 31 of the shoulder body 17. It abuts so as to receive a force in the vertical (longitudinal) direction. Therefore, the force generated by opening the lid 36 can be dispersed by the stopper portions 30 and 31. The first stopper portion 30 is a bearing portion 27 extending in the vertical direction at the hinge connection portion 26, and the second stopper portion 31 is an upper end edge of the cover portion 28. A sufficient contact area can be secured. As a result, it is possible to reliably prevent damage to the shoulder body 17 and the first lid member 37, which are component parts.

  Here, since the recent household electric appliances including the rice cooker 10 of the present embodiment are premised on miniaturization, the area of the first contact portion 57 cannot be increased. However, in this embodiment, since the front end edge extending in the vertical direction of the bearing portion 27 is the first stopper portion 30, a sufficient contact area with the first contact portion 57 having a small area as described above is ensured. be able to. Such a configuration is effective because the largest contact area can be ensured in the case of the lid 36 having a circular shape in plan view and having a curved outer shape as in this embodiment.

  In the present embodiment, the lid body 36 is configured to contact the second stopper portion 31 after contacting the first stopper portion 30. Therefore, the open position for each product can be reliably matched, and the strength of the hinge connection portion can be further improved. And since the hinge connection part 26 is integrally provided in the shoulder body 17 which comprises the exterior body of the said rice cooker main body 12, the intensity | strength of the hinge connection part 26 can be improved, and the lid | cover accompanying an assembly | attachment error. The error of the opening angle of the body 36 can be reduced.

  Further, since the second stopper portion 31 is provided at a position away from the axis of the hinge pin 24 in the vertical direction, the force received by the second stopper portion 31 can be reduced. In addition, since the vertical wall portion 28a of the cover portion 28 extending in the vertical direction receives a load from the lid body 36 in the vertical direction, its resistance is strong and can be reliably prevented from being damaged. Further, the second abutting portion 58 that abuts on the second stopper portion 31 is provided so as to extend in a direction perpendicular to the raised surface 38 of the first lid member, and further provided at a symmetrical position, so that the outer peripheral edge is By providing the desired number of second abutting portions 58 to the lid 36 having a curved shape, the contact area of the second stopper portion 31 received in the vertical direction can be increased as desired. 17 or the first lid member 37 can be prevented from being damaged.

  In addition, the household electrical appliance of this invention is not limited to the structure of the said embodiment, A various change is possible.

  For example, the first stopper portion 30 that receives the lid body 36 in the horizontal direction and the second stopper portion 31 that receives the lid body 36 in the vertical direction are provided so as to share a part of the hinge connection portion 26. A dedicated stopper may be provided.

  Further, in the present invention, in order to clarify the relationship and configuration between the rice cooker body 12 and the lid 36 at the upper end opening, the vertical direction is defined as the vertical direction, and the horizontal direction is defined as the horizontal direction. The vertical direction and the horizontal depth may be the horizontal direction, and the directionality can be changed as desired.

  Moreover, in the said embodiment, although the hinge connection structure of the cover body 36 which is the characteristics of this invention was applied to the rice cooker 10, it is applicable also to an electric pot. In other words, the present invention is not limited to the rice cooker 10, and can be applied to any home electric product that includes a device body having an opening and a lid that is rotatably attached to the device body. Yes, similar actions and effects can be obtained.

It is principal part sectional drawing which shows the rice cooker which is a household electrical appliance which concerns on embodiment of this invention. It is a perspective view which shows the rice cooker of FIG. It is a top view which shows the relationship between a shoulder body and a 1st cover member. It is a disassembled perspective view which shows a shoulder body and a 1st cover member. It is a disassembled perspective view of a cover body. It is sectional drawing which shows the cover body and shoulder body of an open state. It is a rear view which shows the cover body and shoulder body of an open state.

Explanation of symbols

10 ... Rice cooker (home appliances)
DESCRIPTION OF SYMBOLS 12 ... Rice cooker main body 13 ... Body 15 ... Bottom body 17 ... Shoulder body 18 ... Opening part 24 ... Hinge pin 25 ... Hinge spring 26 ... Hinge connection part 27 ... Bearing part 28 ... Cover part 29 ... Front wall part 30 ... 1st stopper Part 31: Second stopper part 32 ... Elastic part 36 ... Lid 37 ... First lid member 38 ... Raised surface 47 ... Operation button 55 ... Connection part 57 ... First contact part 58 ... Second contact part 59 ... First 2 lid members 68 ... decorative cover

Claims (7)

A device main body having an opening, and a lid that is rotatably attached to the device main body and closes the opening so as to be openable and closable, and the hinge connection portion of the device main body and the connection portion of the lid can be rotated. In household electrical appliances connected to
The hinge connection portion is provided with an elastic portion that abuts against the lid body and brakes the opening when the lid body is positioned to extend vertically upward,
In the vicinity of the hinge connecting portion or the hinge connecting portion, a first stopper portion that receives and receives the lid from the horizontal direction when the lid opens, and a second stopper that receives and receives the lid from the vertical direction and the part is provided,
When the lid body is opened, the lid body abuts on the elastic portion and is braked, and then the lid body abuts on the first stopper portion and is positioned at the open position. In this state, the lid body is further opened to the lid body. When the force is applied in the direction, the lid comes into contact with the second stopper part.
Household appliances characterized by that. The second stopper portion intersects the vertical wall portion so as to counter a downward load caused by receiving the lid body from above vertically and forms a substantially inverted V shape with respect to the vertical wall portion. The household electrical appliance according to claim 1, comprising a crossing portion with a curved wall portion that disperses a load applied to the vertical wall portion. The hinge connecting portion has bearing portions on both sides that allow the hinge pins to pass therethrough, a cover portion that is located on the rear side of these bearing portions, and a front wall portion that is located on the front side of the bearing portion,
The household electrical appliance according to claim 1, wherein the elastic portion is provided so as to extend from a center of an upper end of the front wall portion of the hinge connection portion to the cover portion . The said 1st stopper part is comprised by the front-end edge extended in the orthogonal | vertical direction in the said bearing part, and the said 2nd stopper part is comprised by the front end edge extended in the horizontal direction in the said cover part. Household appliances as described in . 2. A rib-shaped contact portion that has an edge extending in a vertical direction in a state in which the cover body is closed and is provided on the outer peripheral wall of the cover body so as to contact the second stopper portion. The household electrical appliance according to any one of claims 4 to 4.   The household electrical appliance according to claim 5, wherein the contact portion is provided at a symmetrical position with respect to a center line extending in a direction orthogonal to the axis from the center of the hinge pin.   The household electrical appliance according to any one of claims 1 to 6, wherein the hinge connection portion is provided integrally with an exterior body of the device main body.

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