JP6436585B2 - Cooking equipment - Google Patents

Description

  The present invention relates to a cooking apparatus having a function for raising and lowering a cooking container.

  The following Patent Document 1 describes a cooking device having a function for raising and lowering a cooking container such as a rice cooker. This one has a lifting device (lifter) that raises and lowers the opening and closing door that opens and closes the cooking chamber. By raising and lowering the rice cooking pot by operating the lifting device with the rice cooking pot on the back of the opening and closing door, It has a structure that can be done.

JP2015-19910A

  By the way, for example, when the cooking container after cooking is moved from the cooking chamber to the back surface of the door, the drawer from the cooking chamber is insufficient and the cooking container has not moved to the normal position on the back surface of the door, and the cooking container May overlap with the entrance of the cooking room. If the lifting device is operated in such a state, it may collide with the entrance portion of the cooking chamber, and the cooking container may be turned over or dropped from the open / close door.

  This invention was completed based on the above situations, Comprising: It suppresses that the cooking container located in the middle of an opening-and-closing door and a cooking chamber collides with the entrance of a cooking chamber by the action | operation of an raising / lowering apparatus. For the purpose.

  The cooking device of the present invention includes a cooking device main body having a cooking chamber, an opening / closing door that opens and closes the cooking chamber, and a back surface of which is a mounting surface of the cooking container, a lifting device that lifts and lowers the opening / closing door, And a safety device that prohibits the lifting device from operating in a state where the cooking container pulled out from the cooking chamber is positioned between the opening / closing door and the cooking chamber.

  In this configuration, in a state where the cooking container pulled out from the cooking chamber is located between the opening / closing door and the cooking chamber, the operation of the lifting device is prohibited. Therefore, it can suppress that a cooking container collides with the entrance of a cooking chamber by the action | operation of an raising / lowering apparatus, and can suppress that a cooking container turns over or falls from an opening / closing door.

The following configuration is preferable as an embodiment of the present invention.
The safety device is provided at a boundary portion between the open / close door and the cooking chamber, and is a safety bar that is displaced between a first position that opens the entrance of the cooking chamber and a second position that overlaps the entrance; A sensor for detecting the position of the bar; and a control unit for controlling the lifting device based on the output of the sensor, wherein the control unit is configured to control the lifting device when the safety bar is located at the first position. When the operation is prohibited and the safety bar is located at the second position, the operation of the lifting device is permitted.

  In this configuration, if the cooking container is completely moved from the cooking chamber side to the open / close door side and then the safety bar is not moved from the first position to the second position, the operation of the lifting device is not permitted. Therefore, it is possible to prohibit the lifting device from operating in a state where the cooking container is located between the opening / closing door and the cooking chamber.

The elevating device includes a support frame that supports the open / close door, a link that elevates and lowers the support frame, and a motor that is a drive source, and the safety bar is attached to the support frame, By the operation of the device, it is raised and lowered integrally with the opening / closing door.

  In this configuration, the safety bar moves up and down integrally with the open / close door when moving up and down, and suppresses the cooking container from moving toward the cooking apparatus main body. Therefore, it is possible to prevent the cooking container from interfering with or colliding with the cooking apparatus main body during the lifting operation.

  ADVANTAGE OF THE INVENTION According to this invention, it can suppress that the cooking container located in the middle of an opening-and-closing door and a cooking chamber collides with the entrance of a cooking chamber by the action | operation of an raising / lowering apparatus.

The perspective view of the solid rice cooker which concerns on Embodiment 1 of this invention. Perspective view of a three-dimensional rice cooker with the side notched Diagram showing the installation structure of the door Side view showing structure of first lifter and second lifter The figure which expanded the A section in FIG. 4 (the positional relationship of a movable plate and a roller is shown). Perspective view of a three-dimensional rice cooker (shows the state before taking out the rice cooker from the upper heating chamber) Perspective view of a three-dimensional rice cooker (shows a state where part of the rice cooker overlaps the entrance of the heating chamber) Perspective view of a three-dimensional rice cooker (shows the state where the rice cooker has moved to the back of the door) Perspective view of a three-dimensional rice cooker (showing the state where the safety bar has moved to the safe position) Perspective view of a three-dimensional rice cooker (showing the state where the safety bar has moved to the safe position) The figure which expanded the B section of FIG. Side view of the mounting wall (showing the safety bar in the initial position) Side view of the mounting wall (showing the safety bar in the safe position) Front view of the heating chamber (showing the safety bar in the initial position) Front view of the heating chamber (shows the safety bar in the safe position) Block diagram showing the electrical configuration of a three-dimensional rice cooker Flowchart diagram showing the flow of safety control

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS.
1. The structure of the three-dimensional rice cooker 20 The three-dimensional rice cooker (corresponding to the “cooking apparatus” of the present invention) 20 corresponds to the box-shaped rice cooker main body (upside of the “cooking apparatus main body” of the present invention) as shown in FIG. ) 30, three heating chambers (corresponding to the “cooking chamber” of the present invention) 31a to 31c are arranged in the vertical direction. And the operation panel P is provided in the front right side of the rice cooker main body 30, and it has the structure which can input conditions, such as heating time and temperature. Further, the left-right direction (X-axis direction), the front-rear direction (Y-axis direction), and the up-down direction (Z-axis direction) indicate the directions in FIG.

  Opening / closing doors 33a to 33c are provided in front of the heating chambers 31a to 31c. Each open / close door 33 is configured to open downward by pulling a handle 38 provided on the upper part of the door in the downward direction toward the front, and a rice cooker (the “cooking container” of the present invention) with respect to each heating chamber 31a to 31c. This corresponds to a configuration in which 200 is taken in and out from the front side.

  The three-dimensional rice cooker 20 includes a first lifter 50a and a second lifter 50c. The first lifter 50a and the second lifter 50c correspond to the “lifting device” of the present invention. The first lifter 50a is a lifter that uses the opening / closing door 33a that opens and closes the upper heating chamber 31a as a lifting platform for moving the rice cooker 200 up and down. The shuttle 200 can be moved up and down between an upper position corresponding to the upper heating chamber 31a and a middle position corresponding to the middle heating chamber 31b.

  The second lifter 50c is a lifter that uses the opening / closing door 33c that opens and closes the lower heating chamber 31c as a lifting platform for raising and lowering the rice cooker 200. The second lifter 50c is placed on the back surface 34 by raising and lowering the opening and closing door 33c. The rice cooker 200 can be moved up and down between the lower position corresponding to the lower heating chamber 31c and the middle position corresponding to the middle heating chamber 31b.

The first lifter 50a includes a support member 60, an elevating link 51a, a driven link 53a, and a driving unit 70.
If it demonstrates concretely, as shown in FIG. 2, the attachment frame 45 is attached to the right-and-left both sides of the rice cooker main body 30. As shown in FIG. In FIG. 2, only the attachment frame 45 attached to the front side of the rice cooker body 30 is shown, but the attachment frame 45 is attached to the back side as well as the front side.

  The elevating link 51a and the driven link 53a form a pair, and a pair of left and right attachments are attached to the inner walls of the left and right attachment frames 45. As shown in FIG. 2, the elevating link 51a and the driven link 53a are arranged vertically, the elevating link 51a rotates about the rotation axis H1a, and the driven link 53a rotates about the rotation axis H3a. As shown in FIG. 2, the link tips of the elevating link 51 a and the follower link 53 a protrude forward from the front wall of the rice cooker body 30, and are fixed to the mounting walls 63 provided on both sides of the support member 60. Has been. The support member 60 and the mounting wall 63 correspond to the “support frame” of the present invention.

  The support member 60 has a long shape in the width direction (X direction) of the three-dimensional rice cooker 20. The support member 60 rotatably supports the open / close door 33a via a hinge shaft 67. The open / close door 33a can be rotated about 90 ° about the hinge shaft 67, and can be displaced between an upright position and a horizontal position as shown in FIG. And the back surface 34 of the door 33a is a flat mounting surface, and the rice cooker 200 can be mounted on the back surface 34 when the door 33a is opened and tilted to the horizontal position. The support member 60 is provided with a stopper (not shown) that stops the opening / closing door 33a from rotating in the horizontal position, and the horizontal position is maintained even when the rice cooker 200 is placed on the back surface 34. ing.

  The elevating link 51a, the follower link 53a, the attachment wall 63, and the attachment frame 45 constitute a four-node link. When the elevating link 51a is rotated around the rotation axis H1a, the support member 60 maintains the posture and elevates. The door 33a is lifted and lowered.

  The drive unit 70 functions to rotate the elevating link 51a around the rotation axis H1a. As shown in FIGS. 4 and 5, the movable unit 71 and the movable plate 71 are moved in the vertical direction. A mechanism 73 and a motor 77 are provided. The moving mechanism 73 includes a ball screw shaft 74 and a ball nut 75. The movable plate 71 is attached to a ball nut 75. When the ball screw shaft 74 is rotated by the power of the motor 77, the ball nut 75 moves in the vertical direction along the ball screw shaft 74. The plate 71 is moved up and down.

  When the drive unit 70 is driven to raise the movable plate 71 from the initial position, the movable plate 71 pushes the rear side of the lift link 51a upward through the roller 58a. As a result, the elevating link 51a rotates about the rotation axis H1a (rotates in the direction to lower the tip), and the driven link 53a rotates about the rotation axis H3a, so that the door 33a is moved from the upper position to the middle position. It is configured to be displaced. FIG. 4 shows a state in which the elevating link 51a is in the raised position and the open / close door 33a is in the upper position.

  The basic structure of the second lifter 50c is the same as that of the first lifter 50a, and the opening / closing door 33c is displaced between the lower position and the middle position by using a four-node link. More specifically, as shown in FIGS. 4 and 5, the second lifter 50c includes an elevating link 51c and a driven link 53c, like the first lifter 50a. The lift link 51c and the follower link 53c are attached to the inner wall of the mounting frame 45 like the link on the first lifter 50a side. The lift link 51c rotates about the rotation axis H1c, and the follower link 53c rotates. It rotates about the axis H3c. The links 51c and 53c on the second lifter 50c side are on the bottom, and the links 51a and 53c on the first lifter 50a side are on the top.

  As shown in FIG. 4, the link tips of the elevating link 51 c and the driven link 53 c protrude forward from the front wall of the rice cooker body 30, and are fixed to the mounting walls 63 provided on both sides of the support member 60. Has been.

  The elevating link 51c, the follower link 53c, the attachment wall 63, and the attachment frame 45 constitute a four-joint link. When the elevating link 51c is rotated around the rotation axis H1c, the support member 60 maintains the posture and elevates. The opening / closing door 33c is displaced between the lower position and the middle position. The open / close door 33c can be rotated about 90 ° about the hinge shaft 67 as with the open / close door 33c, and can be displaced between an upright position and a horizontal position as shown in FIG. . The back surface 34 of the open / close door 33a is a flat mounting surface. When the open / close door 33a is opened and tilted to the horizontal position, the rice cooker 200 can be mounted on the back surface 34.

  As shown in FIGS. 4 and 5, the roller 58c on the second lifter 50c side is positioned below the movable plate 71 that stops at the initial position. Therefore, when the driving unit 70 is driven to lower the movable plate 71 from the initial position, the movable plate 71 pushes the rear side of the elevating link 51c downward through the roller 58c. As a result, the elevating link 51c rotates about the rotation axis H1c (rotates in the direction of raising the tip), and the driven link 53c rotates about the rotation axis H3c, so that the door 33c is moved from the lower position to the middle position. It is configured to be displaced to. FIG. 4 shows a state in which the elevating link 51c is in the lowered position and the open / close door 33c is in the lower position. 4 and 5 schematically show the links constituting the lifters 50a and 50c. The shapes of the lift links 51a and 51c and the driven links 53a and 53c are simplified and shown as straight lines having a constant width. It is.

2. Configuration of Safety Device 100 FIGS. 6 and 7 are perspective views of a three-dimensional rice cooker, FIG. 6 shows a state before taking out the rice cooker 200 from the upper heating chamber 31a, and FIG. 7 shows a rice cooker 200 from the heating chamber 31a. This shows a state where the drawer of the rice cooker 200 is insufficient and a part of the rice cooker 200 overlaps with the entrance of the heating chamber 31a.

  As shown in FIG. 7, if the first lifter 50a is operated in a state where a part of the rice cooker 200 is overlapped with the entrance portion of the heating chamber 31a, the rice cooker 200 may be turned over or fall from the open / close door 33a. There is.

  Therefore, in the three-dimensional rice cooker 20, the rice cooker 200 drawn out from the heating chamber 31a or the heating chamber 31c is located in the middle of the open / close door 33a and the heating chamber 31a or in the middle of the open / close door 33c and the heating chamber 31c. Thus, a safety device 100 that prohibits the first lifter 50a and the second lifter 50c from operating is provided. In addition, as shown in FIG. 7, "the state located in the middle of the opening-and-closing door 33a and the heating chamber 31a" means that the rice cooker 200 is located over both the opening-and-closing door 33a and the heating chamber 31a. A part is intended to overlap the entrance portion of the heating chamber 31a.

  The safety device 100 includes safety bars 110a and 110c, sensors 120a and 120c, and a control unit 130. The safety device (safety bar and sensor) is provided corresponding to each of the upper heating chamber 31a and the lower heating chamber 31c. An explanation will be given by taking safety devices (safety bars and sensors) as an example.

  The safety bar 110a is made of a metal bar. The safety bar 110a is attached between the left and right mounting walls 63R and 63L located on both sides of the upper opening / closing door 33a. Specifically, the safety bar 110 is axially fixed at one end to the upper end portion of the left inner mounting wall 63L shown in FIG. The other end side of the safety bar 110 is passed through a guide groove 64 formed in the right front mounting wall 63R shown in FIGS. As shown in FIG. 6, the safety bar 110 a has a relationship of being positioned at a boundary portion between the horizontally openable door 33 a and the heating chamber 31 a in a state where the first lift 50 a is raised.

  In addition, an operation portion 115 is formed at the tip of the other end of the safety bar 110, and the safety bar 110 can be moved up and down around the shaft stop point 113 by operating the operation portion 115 with a hand. It is possible to perform the displacement operation to the initial position shown in FIGS. 8 and 14 and the safe position shown in FIGS. The guide groove 64 formed in the mounting wall 63R has a shape along the vertical direction as shown in FIGS. 11 to 13 in order to guide the vertical movement of the safety bar 110. When it moves to the lower end of the groove, it reaches the safe position.

  8 and 14, the safety bar 110 is positioned above the inlet 32 of the heating chamber 31a and assumes a horizontal posture. Therefore, in this state, the entrance of the heating chamber 31a is open, and the rice cooker 200 can be taken in and out of the heating chamber 31a. As shown in FIG. 11, a magnet M is provided above the mounting wall 63R so that the safety bar 110 can be held at the initial position. The initial position corresponds to the “first position” of the present invention.

  9 and 15, the safety bar 110 is in an inclined posture, and a part of the safety bar 110 is overlapped with the inlet 32 of the heating chamber 31a. Therefore, in this state, the rice cooker 200 cannot be taken in and out of the heating chamber 31c. In addition, as shown in FIG. 7, even if the safety bar 110 is operated from the initial position to the safe position in a state where a part of the rice cooker 200 is overlapped with the entrance portion of the heating chamber 31 a, it interferes with the rice cooker 200. Thus, the safety bar 110 cannot be moved to the safe position. The safe position corresponds to the “second position” of the present invention.

  The sensor 120a is a micro switch, and is attached to the outer surface side of the attachment wall 63R as shown in FIGS. The sensor 120a is located near the lower portion of the guide groove 64. When the safety bar 110 moves to the safe position, the contact point of the sensor 120a contacts the operation piece 121 and the internal contact is closed, so that the safety position of the safety bar 110 is set. Can be detected.

  As shown in FIG. 16, the control unit 130 is connected with a motor 77 serving as a drive source for the first lifter 50a and the second lifter 50b via a driver 135, and also receives detection signals from the sensors 120a and 120c. It becomes the composition which is done. The control unit 130 performs the following safety control based on detection signals (signals for detecting safety positions of the safety bars 110a and 110c) detected from the sensors 120a and 120c.

  FIG. 17 is a flowchart of safety control executed by the control unit 130. When the user instructs the operation of the first lifter 50a and the second lifter 50c from the operation panel P, the control unit 130 performs a process of determining whether detection signals are output from the sensors 120a and 120c (S20). .

  And the control part 130 permits the operation | movement of the 1st lifter 50a and the 2nd lifter 50c, when the detection signal (signal which detects the safe position of safety bar 110a, 110c) is output from sensor 120a, 120c. (S30). On the other hand, when the detection signals (signals for detecting the safe positions of the safety bars 110a and 110c) are not output from the sensors 120a and 120c, the operations of the first lifter 50a and the second lifter 50c are prohibited (S40).

  In other words, in the three-dimensional rice cooker 20, the operation of the first lifter 50a and the second lifter 50c is not permitted unless the user lowers the safety bars 110a and 110c to the safe position. Therefore, the first lifter 50a and the second lifter are in a state where the safety bars 110a and 110c cannot be lowered to the safe position, such as a state where a part of the rice cooker 200 overlaps the entrance portion of the heating chamber 31a or the heating chamber 31c. The operation of 50c can be prohibited. Therefore, it is possible to prevent the rice cooker 200 from being turned upside down or dropped from the open / close door 33a by raising and lowering the lifter.

  The safety bars 110a and 110c are attached to attachment walls 63R and 63L fixed to both sides of the support member 60. When the first lifter 50a and the second lifter 50c are operated, the safety bars 110a and 110c are raised and lowered together with the opening and closing doors 33a and 33c. To do.

  The safety bars 110a and 110c are always located behind the rice cooker 200 even during elevation, and function as a stopper that restricts the rice cooker 200 from moving backward. Therefore, it is possible to prevent the rice cooker 200 from moving rearward on the back surfaces of the open / close doors 33a and 22c and interfering with the rice cooker main body 30 due to factors such as the vibration of elevation and the inclination of the installation surface.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the above embodiment, an example in which the safety device is configured by the safety bars 110a and 110c, the sensors 120a and 120c, and the control unit 130 has been described. Whether a light curtain that detects the presence or absence of an object is provided at the boundary between the doors 33a and 33c and the cooking chambers 31a and 31c, and the operation of the first lifter 50a or the second lifter 50c is permitted depending on the detection result You may make it decide whether or not. That is, when an object is not detected at the boundary between the open / close doors 33a and 33c and the cooking chambers 31a and 31c, the first lifter 50a and the second lifter 50c are allowed to operate, and when an object is detected, The operation of the first lifter 50a and the second lifter 50c may be prohibited.

  (2) In the above embodiment, “three-dimensional rice cooker 20” is illustrated as an example of a cooking device, and “rice cooker 200” is illustrated as an example of a cooking container. The present invention can be applied to cooking apparatuses such as a steam convection oven and a fryer other than a three-dimensional rice cooker.

  (3) In the above embodiment, an example in which the moving mechanism 73 that moves the movable plate 71 in the vertical direction is configured by the ball screw shaft 74 and the ball nut 75 has been described. The moving mechanism 73 only needs to move the movable plate 71 in the vertical direction. For example, the moving mechanism 73 can be configured by a gear mechanism including a rack gear and a pinion gear, or a belt mechanism using a timing belt or the like.

20 ... Solid rice cooker (equivalent to "cooking device" of the present invention)
30 ... Rice cooker body (equivalent to "cooking device body" of the present invention)
31a ... Upper heating chamber (corresponding to "cooking room" of the present invention)
31b ... middle heating chamber (corresponding to "cooking room" of the present invention)
31c ... lower heating chamber (corresponding to "cooking room" of the present invention)
33a ... Opening / closing door 33b ... Opening / closing door 33c ... Opening / closing door 34 ... Back 50a ... First lifter (corresponding to "elevating device" of the present invention)
50a ... second lifter (corresponding to the "lifting device" of the present invention)
51a ... Elevating link 51c ... Elevating link 60 ... Support member (corresponding to "support frame" of the present invention)
63. Mounting wall (corresponding to “support frame” of the present invention)
DESCRIPTION OF SYMBOLS 100 ... Safety device 110a ... Safety bar 110c ... Safety bar 120a ... Sensor 120c ... Sensor 130 ... Control part

Claims (2)

A cooking apparatus body having a cooking chamber;
An open / close door that opens and closes the cooking chamber and the back surface of which is a mounting surface of the cooking container;
A lifting device that lifts and lowers the opening and closing door;
A safety device that prohibits the lifting device from operating in a state where the cooking container pulled out from the cooking chamber is located between the opening and closing door and the cooking chamber ;
The safety device is
A safety bar which is provided at a boundary portion between the opening and closing door and the cooking chamber and which is displaced between a first position where the entrance of the cooking chamber is opened and a second position which overlaps the entrance;
A sensor for detecting the position of the safety bar;
A control unit that controls the lifting device based on the output of the sensor,
The controller is
When the safety bar is located at the first position, the operation of the lifting device is prohibited,
A cooking device that permits operation of the lifting device when the safety bar is located in the second position . The cooking device according to claim 1 ,
The lifting device is
A support frame that supports the door;
A link for raising and lowering the support frame;
A motor that is a drive source,
The safety bar is
A cooking apparatus that is attached to the support frame and moves up and down integrally with the opening / closing door by the operation of the lifting apparatus.

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