JP5104172B2 - rice cooker - Google Patents

Description

  The present invention relates to a rice cooker in which a display substrate is disposed on a lid and a power supply substrate is disposed in a main body, and the lid is automatically and stably opened by a simple operation.

  Conventionally, in response to the desire to reduce the installation area of the rice cooker, the display board and power board are not placed in front of the pan in the main body, the display board is placed on the top of the lid, and the power board is placed in the main body. Some have been arranged to reduce the installation area (see, for example, Patent Document 1).

  As shown in FIG. 4, a flat cable 30 is used to supply power to a display board as an operation unit and to communicate an operation signal with a power supply board. The flat cable 30 is positioned with a flat cable width secured beside the spring 32 for energizing the lid opening provided on the hinge shaft 31.

  In addition, the most popular rice cookers are those that can automatically open the lid that covers the top of the main body by a simple operation. Especially in high-class rice cookers, the stability of the speed during the lid opening, In order to realize a high-quality image such as a feeling of relaxation and quietness in a series of opening operations, there is a structure in which a braking means such as a gear damper or an oil damper is configured in the hinge portion (for example, see Patent Document 2).

As shown in FIG. 5, the spring 34 is arranged near the hinge shaft 33 provided at the rear of the main body to urge it in the direction of opening the lid, and at the front of the main body is engaged with the locking portion 35 in front of the lid. An engaging hook button 36 is provided, and when the hook button 36 is operated, the engagement with the locking portion 35 of the lid is released. As shown in FIG. 6, a gear damper 37 is assembled to the hinge shaft 33. When the lid is opened, a braking force is generated by the air resistance of the included gear group and the resistance blade to reduce the movement of the lid.
JP 2000-102477 A JP-A-8-150072

  However, in the configuration in which the display substrate is provided on the conventional lid top surface, the weight of the entire lid is increased and a large lid opening force is required, so there is an abnormal noise when the lid is opened or the body bounces, It is difficult to ensure the quality when the lid is opened. Further, in the structure of the rice cooker that employs the braking means such as the conventional damper, since the braking means is assembled to a part of the hinge shaft, it is difficult to reduce the hinge width and thus the product width. Become.

  The present invention solves the above-described conventional problems, and realizes a high-class image such as a sense of speed stability during lid opening, a feeling of relaxation when stopping, and quietness in a series of opening operations without increasing the hinge width. The purpose is to provide a rice cooker.

In order to solve the conventional problems, a rice cooker according to the present invention includes a main body having an open upper surface, a pot accommodated in the main body, a lid covering the upper surface opening of the main body, and the lid on the main body. A hinge shaft that is pivotally supported to be openable and closable, a power supply substrate accommodated in the main body, a display substrate accommodated in the lid, a flat cable connecting the power supply substrate and the display substrate, and the lid. A biasing means for biasing in the opening direction; and an oil damper that is assembled to the hinge shaft and brakes the opening of the lid. The damper body constituting the oil damper includes the flat cable and the hinge shaft. The flat cable is placed in contact with the damper body, and at least one of the hinge shaft assembling member and the outer shell constituting the oil damper is insulated.

As a result, the braking means acts, and the braking means is located between the hinge shaft of the lid having the display substrate and the flat cable, so that the stability of the speed during the opening of the lid without increasing the hinge width and the ease of stopping. A high-quality image such as feeling and quietness in a series of opening operations can be realized. Furthermore, even if the surface member of the flat cable is worn due to repeated opening and closing of the lid in long-term use, the insulation is maintained by the braking means, so that the insulation between the hinge shaft and the flat cable can be ensured securely and safely. is there. Further, it is possible to reduce the concentrated stress at the flat cable bending portion in the lid opening / closing operation and improve the durability, and it is economical and difficult to break.

The rice cooker of the present invention can realize a high-class image such as a sense of speed stability during lid opening, a relaxed feeling when stopping, and quietness in a series of opening operations without increasing the hinge width.

1st invention, the main body with which the upper surface opened, the pan accommodated in the said main body, the cover which covers the upper surface opening part of the said main body, and the hinge axis | shaft which pivotally supports the said cover with respect to the said main body so that opening and closing is possible A power supply substrate housed in the main body, a display substrate housed in the lid, a flat cable connecting the power supply substrate and the display substrate, and a biasing means for biasing the lid in the opening direction, An oil damper that is assembled to the hinge shaft and brakes the opening of the lid, wherein the damper body constituting the oil damper is disposed between the flat cable and the hinge shaft, and the flat cable is disposed between the damper body and the damper body. to install abut against, it is an cooker comprising imparted an insulating on at least one hinge shaft assembly member and the outer of constituting the oil damper. As a result, the braking means acts, and the braking means is located between the hinge shaft of the lid having the display substrate and the flat cable, so that the stability of the speed during the opening of the lid without increasing the hinge width and the ease of stopping. A high-quality image such as feeling and quietness in a series of opening operations can be realized.

  Furthermore, by providing insulation to at least one of the hinge shaft assembly member and the outer shell constituting the braking means, even if the surface member of the flat cable is worn due to repeated opening and closing of the lid in long-term use, it is insulated by the braking means. Therefore, the insulation between the hinge shaft and the flat cable can be surely secured, which is safe.

Further , the concentrated stress at the flat cable bending portion in the lid opening / closing operation can be reduced and the durability can be improved, and it is economical and difficult to break.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment)
1 to 3 show a rice cooker in an embodiment of the present invention.

  As shown in FIG. 1, the rice cooker in the present embodiment covers a main body 1 whose upper surface is open, a pan 2 of a magnetic material such as stainless steel and iron housed in the main body 1, and an upper surface opening of the main body 1. The lid 3, the hinge shaft 4 that pivotally supports the lid 3 so as to be openable and closable with respect to the main body 1, the power supply substrate 9 accommodated in the main body 1, the display substrate 14 accommodated in the lid 3, and the power supply substrate 9 And a flat cable 13 that connects the display board 14, a biasing means 5 such as a spring that biases the lid 3 in the opening direction, and a brake such as an oil damper that is assembled to the hinge shaft 4 and brakes the opening of the lid 3. Means 6 are provided. The braking means 6 is configured between the flat cable 13 and the hinge shaft 4.

  Moreover, the rice cooker in this Embodiment is equipped with the heating means 8, such as the pan storage part 7 which accommodates the pan 2 in the main body 1, and the heating coil installed in the downward direction. The power supply substrate 9 is provided on the rear side of the main body 1 and on the hinge shaft 4 side, and performs energization control to the heating means 8 and the like. In the present embodiment, the pot 2 is induction-heated, and the cooked food (not shown) in the pot 2 is heated and cooked. The cooked food is rice before cooking and water or cooked rice.

The lid 3 covering the upper surface opening of the main body 1 is pivotally supported by the hinge shaft 4 while being always urged in the opening direction by the urging means 5, but is engaged by the hook button 10 on the other side. Are combined. Here, when the hook button 10 is operated, the engagement is released and it is automatically opened. When the lid 3 is opened by the urging force of the urging unit 5, the braking unit 6 applies a braking force. The braking means 6 is attached to a damper mounting wall 11 in the main body 1, and the braking means 6 and the hinge shaft 4 are covered with a hinge cover 12 so that they cannot be seen from the outside of the main body 1.

  Further, the display substrate 14 accommodated in the lid 3 is used for performing operation input and the like, and for performing status display such as rice cooking and heat retention. Further, inside the lid 3, an inner lid unit 18 composed of an inner lid 15 made of stainless steel, an inner lid support 16 made of resin, and a pot packing 17 is provided. The inner lid unit 18 is equipped with a pot packing 17. Comes into contact with the flange portion 2 a at the top of the pan 2 to close the pan 2.

  As shown in FIG. 2 with the hinge cover 12 removed, the braking means (shown by a broken line) 6 is assembled so that the hinge shaft 4 penetrates beside the biasing means 5 and the rear thereof. The flat cable 13 is wired. That is, as described above, the braking means 6 is configured between the flat cable 13 and the hinge shaft 4. With this configuration, the hinge width does not have to be increased as compared with the case where the braking means 6 is not provided, and thus the size of the rice cooker can be suppressed. The flat cable 13 is connected to the power supply board 9 after being wired behind the braking means 6 and then folded. A contact portion (a damper body 6 c described later) of the braking means 6 with the flat cable 13 is configured with a larger curvature than the hinge shaft 4. This is to reduce the concentrated stress at the bent portion of the flat cable 13.

  The details of the oil damper as the braking means 6 and the hinge shaft 4 are shown in FIG. The hinge shaft 4 is formed with a rotation restricting rib 4a, a rib 4b, and a D-cut surface 4c. The rib 4a and the D-cut surface 4c are fitted into a key grooved hole or D-shaped hole provided in the lid 3, and the rib 4b is fitted into a keyed part provided in the braking means 6 to restrict rotation. In addition, regardless of the details of these rotation restricting shapes, all of them may be integrally formed on a rib, a D-cut surface, etc., or another set may be provided at 180 ° diagonal, or another member such as a pin. You may go on.

  The oil damper as the braking means 6 includes a damper lid 6a, a damper shaft 6b, a damper body 6c, packings 6d and 6e, and oil (not shown). The damper shaft 6b is formed with a key groove 6f and an oil hole 6g that fit into the rib 4b of the hinge shaft 4. The damper body 6c has a shape in which a triangular rib 6h is added to the upper and lower sides of a two-layer cylinder obtained by rotating a U-shape.

  The braking means 6 is inserted into the damper body 6c in which oil is injected with the packing 6d inserted into the small cylinder side of the damper shaft 6b and the packing 6e inside the large cylinder side, and then the damper lid 6a is bonded. Oil is sealed. When the damper shaft 6b rotates, the oil becomes a resistor and a braking force is generated.

  Here, if the braking means 6 has a large configuration with respect to the outer shape of the hinge shaft 4 such as a gear damper, it is difficult to secure a configuration through which the flat cable 13 is passed. It is easy to ensure, and it is easy to ensure the structure which lets the flat cable 13 pass. Further, when an oil damper is used as the braking means 6, it can be configured smaller than the gear damper, so that the demand for downsizing the rice cooker can be met.

  Furthermore, at least one of a damper shaft 6b that is a hinge shaft assembling member constituting the braking means 6 and a damper body 6c that is an outer shell is provided with an insulating property (for example, constituted by an insulating member), Even when the surface member of the flat cable 13 is worn and the charged part is exposed, the insulation between the adjacent charged parts in the flat cable 13 is ensured and the safety is improved.

In the rice cooker having the above configuration, when the hook button 10 is operated, the lid 3 is opened by the urging force of the urging means 5, but the opening operation is suppressed by the braking means 6, and the opening is always performed at a stable speed. Further, it is possible to realize a high-grade image in which the lid 3 is relaxed by the braking means 6 and the lid opening operation is quietly performed while the brake means 6 stops slowly even when stopped. Moreover, since the braking means 6 is configured between the flat cable 13 and the hinge shaft 4, the hinge width does not have to be increased as compared with the case where the braking means 6 is not provided, so that an increase in the size of the rice cooker can be suppressed.

  As described above, according to the present embodiment, the braking means acts and the braking means is located between the hinge shaft of the lid having the display substrate and the flat cable, so that the hinge width is not increased and the lid is being opened. It is possible to realize a high-class image such as a sense of speed stability, a relaxed feeling when stopping, and quietness in a series of opening operations.

  Further, since the flat cable is in contact with the contact portion of the braking means having a larger curvature than the hinge shaft, the bent portion of the flat cable is bent according to the smaller curvature of the hinge shaft when the lid is opened and closed. Only a small stress will be generated, and the flat cable will be difficult to break. As a result, the durability of the flat cable can be improved.

  In addition, since at least one of the hinge shaft assembling member and the outer shell constituting the braking means is insulated, even when the surface member of the flat cable is worn and the charged part is exposed, it is adjacent in the flat cable. Ensures insulation between live parts to improve safety.

  In the present embodiment, the flat cable is passed through the rear of the braking means, but the same effect can be obtained through the front. Further, the configuration of the braking means is not limited to the oil damper as long as the configuration through which the flat cable is passed can be secured.

  As described above, the rice cooker according to the present invention can realize a high-class image such as a sense of speed stability during the lid opening, a feeling of looseness when stopping, and a quietness in a series of opening operations without increasing the hinge width. It can be applied to rice cookers in general, whether for home use or business use.

Sectional drawing of the rice cooker in embodiment of this invention Partial rear view of the braking means part of the rice cooker An exploded perspective view of the hinge shaft and braking means of the rice cooker Partial rear view of a braking means portion in a conventional rice cooker Cross-sectional view of a rice cooker showing another conventional example Partial rear view of braking means in the rice cooker

DESCRIPTION OF SYMBOLS 1 Main body 2 Pan 3 Lid 4 Hinge shaft 5 Energizing means 6 Braking means 6b Damper shaft (hinge shaft assembly member)
6c Damper body (outer shell)
9 Power supply board 13 Flat cable 14 Display board

Claims (1)

A main body having an upper surface opened, a pot accommodated in the main body, a lid covering the upper surface opening of the main body, a hinge shaft that pivotally supports the lid so as to be openable and closable with respect to the main body, and accommodated in the main body Assembled to the hinge shaft, a power supply board to be stored in the lid, a flat cable connecting the power supply board and the display board, biasing means for biasing the lid in the opening direction, and And an oil damper that brakes the opening of the lid, and the damper body that constitutes the oil damper is installed between the flat cable and the hinge shaft with the flat cable contacting the damper body A rice cooker in which at least one of the hinge shaft assembling member and the outer shell constituting the oil damper is provided with an insulating property.

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