JP2018093890A - Opening/closing mechanism of commercial cooking pot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening/closing mechanism of a commercial cooking pot, the mechanism that facilitates opening/closing of a lid part of the commercial cooking pot with heavy weight and enable opening/closing of the lid part gently.SOLUTION: An opening/closing mechanism of a commercial cooking pot includes: a base 10; a bracket 20 supported to the base 10 through a bracket shaft 20a along the horizontal direction in a turning manner and supporting a lid part L to a pot part P in an opening/closing manner; an elastic member 30 mounted to the base 10 and the proximal end 21 of the bracket 20 ina n extended state; a drive cam 40 supported to the base 10 in the turning manner through a camshaft 40a; a drive link 50 connected to the proximal end 21 of the bracket 20 in a turning manner through a link upper shaft 51 and connected to the drive cam 40 in the turning manner at the lower part from the proximal end 21 through a link lower part shaft 52; and a damper 60 connected to the drive cam 40 in the turning manner through a damper upper shaft 61 and connected to the base 10 in the turning manner at the lower part form the drive cam 40 through a damper lower shaft 62.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an open / close mechanism for a commercial cooking pot.

  2. Description of the Related Art Conventionally, there is known a hook lid opening / closing device capable of opening and closing a large lid with a lid for business use while smoothly adjusting the opening and closing of the lid (see Patent Document 1 below). The lid opening / closing device described in Patent Document 1 facilitates the opening / closing operation of the upper lid by arranging a hook fixed in a hollow state by a support arm and a connecting device comprising a spring mechanism between the upper lid and the support arm of the hook. It is the upper lid opening and closing device of the hook.

  In this conventional opening / closing device, a pair of coupling cylinders that can be freely inserted and removed between the connecting device of the upper lid of the hook and the support arm are arranged up and down, and a support rod is penetrated and fixed at the center of the upper outer cylinder. . The upper end of the support bar is loosely fitted to the connecting rotation plate of the connecting device for the upper lid. Further, an elastic plate made of rubber or the like is provided at the lower end of the support bar with two mounting plates interposed therebetween. The side periphery of this elastic plate is brought into pressure contact with the inner surface of the pipe.

  When the outer cylinder is rotated together with the support rod, the elastic plate is expanded from above and below by the two mounting plates so that the contact state of the inner surface of the pipe can be adjusted. A winding spring is disposed in the lower inner cylinder, the lower end of the mounting plate is supported at the upper end of the winding spring, and the lower end of the inner cylinder is connected to a support arm via a length adjusting bolt.

  According to the description of Patent Document 1, the above-described hook lid opening / closing device could not be opened and closed abruptly beyond a predetermined angle by the action of a spring attached to the conventional upper lid opening / closing device to perform a delicate opening / closing degree. Can be amended.

Japanese Utility Model Publication No. 51-73390

  The conventional lid opening / closing device described in Patent Document 1 has a kettle lid that opens and closes abruptly due to frictional resistance between the pipe inner side surfaces of a pair of connecting cylinders arranged vertically and an elastic plate such as rubber. Is preventing. However, the elastic plate expands or contracts depending on the temperature, wears due to sliding on the inner surface of the pipe of the connecting cylinder, or deteriorates and hardens, thereby causing a frictional resistance between the inner surface of the connecting pipe and the pipe. Fluctuates greatly.

  For this reason, it is difficult to maintain the optimal opening / closing degree of the hook lid, and the operation of adjusting the compression of the elastic plate by frequently rotating the upper cylinder of the pair of coupling cylinders and rotating the support rod frequently occurs. In addition, due to wear and deterioration of the elastic plate, it is necessary to replace the elastic plate at a relatively short cycle, which increases the maintenance burden. In order to cope with such a problem, it is conceivable to replace the coupling cylinder and the elastic plate with, for example, a hydraulic damper.

  However, simply replacing the coupling cylinder and elastic plate with a hydraulic damper increases the force required to open and close the lid of a commercial cooking kettle, which is heavier than household cooking utensils. The burden may increase significantly. Moreover, in order to ensure the safety of the cook, there is a need for an open / close mechanism for the lid of a commercial cooking pot that can open and close the lid gently.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and facilitates opening and closing of the lid portion of a heavy commercial cooking kettle and can be opened and closed gently. The purpose is to provide a mechanism.

  In order to achieve the above object, an open / close mechanism for a commercial cooking kettle according to the present invention is an open / close mechanism for a commercial cook kettle provided with a kettle part and a lid part, and the base and the base are along a horizontal direction. A bracket that is rotatably supported via a bracket shaft, and that supports the lid portion so as to be openable and closable with respect to the hook portion; and an elastic member attached to the base and a base end portion of the bracket in an extended state. A drive cam supported rotatably on the base via a cam shaft, and pivotally connected to the base end of the bracket via a link upper shaft, and below the base end A drive link rotatably connected to the drive cam via a link lower shaft; and a drive link rotatably connected to the drive cam via a damper upper shaft; and a damper lower shaft connected to the base below the drive cam. And a damper that is pivotably connected via a damper.

  The open / close mechanism of the commercial cooking pot is a mechanism for opening and closing the lid portion of the commercial cooking pot that is heavier than a domestic cooking utensil. The open / close mechanism of the commercial cooking pot rotates the lid portion upward about the bracket shaft to open the opening portion of the hook portion, and pivots the lid portion downward to rotate the pot portion. The opening of the is closed. Although the said base supports the said bracket rotatably via the said bracket axis | shaft, it can also support the said hook part rotatably via the rotating shaft for hook parts. The bracket supports the lid on the distal end side, the elastic member is connected to the base end, and the drive link is connected to the base end via the link upper shaft, It is rotatably supported by the base via the bracket shaft installed at the end.

  By the open / close mechanism of the commercial cooking pot, the lid portion is rotated upward from a fully closed state along the horizontal direction to a fully open state along the vertical direction to open the lid portion to open the opening portion of the pot portion. It can be carried out. At this time, a tensile force acts on the base end portion of the bracket from the elastic member attached to the base end portion of the bracket supporting the lid portion in an extended state. This tensile force generates a rotational force that rotates the lid portion upward with the bracket shaft as a rotational axis. Thereby, the force required to lift the heavy lid portion can be reduced, and the opening operation of the lid portion can be facilitated.

  In the opening operation of the lid, when the bracket supporting the lid is rotated about the bracket shaft as a rotation axis, the base end is the lowest along the vertical direction from the uppermost position along the horizontal direction. Rotate to position. At this time, the drive link connected to the base end portion of the bracket is driven downward from the uppermost position to the lowermost position in the vertical direction. By driving the drive link downward, the drive cam connected to the drive link rotates about the cam shaft as a rotation axis.

  The rotation of the drive cam is rotatably connected to the drive cam via the damper upper shaft, and is rotatably connected to the base below the drive cam via the damper lower shaft. The damper is extended or contracted. By the extension or contraction of the damper, the rotation speed of the drive cam is reduced, the drive speed of the drive link is reduced, and the rotation speed of the bracket is reduced. Thereby, a sudden operation immediately after the start of the opening operation of the lid portion is suppressed, and the lid portion begins to open gently. Therefore, for example, a cook who opens and closes a commercial cooking pot suddenly generates a large amount of steam by limiting the amount of steam released from between the pot portion and the lid portion immediately after the opening operation of the lid portion is started. It is possible to prevent exposure and improve the safety when the commercial cooking pot is opened.

  When the lid portion further opens and the angle of the lid portion with respect to the horizontal direction gradually increases, gravity that acts on the lid portion and generates a rotational force in a direction to close the lid portion with the bracket shaft as a rotation axis gradually decreases. . Thereby, the said cover part opens rapidly by the tensile force which acts on the said base end part of the said bracket from the said elastic member. When the lid further opens and the angle with respect to the vertical direction gradually decreases, the bracket gradually approaches the lowest position, the elastic member gradually decreases, the tensile force gradually decreases, and the operating speed of the lid gradually decreases. Finally, the lid portion is fully opened along the vertical direction. Also at this time, due to the expansion or contraction of the damper, the rotation speed of the drive cam is reduced, the drive speed of the drive link is reduced, and the rotation speed of the bracket is reduced. As a result, a sudden operation immediately before the end of the opening operation of the lid portion is suppressed, and the lid portion is gently opened.

  Further, the lid for closing the lid that closes the opening of the pot by rotating the lid from the fully open state along the vertical direction to the fully closed state along the horizontal direction by the open / close mechanism of the commercial cooking pot. The action can be performed. At this time, the bracket rotates from the lowermost position along the vertical direction to the uppermost position along the horizontal direction. In the fully open state of the lid portion, the lid portion is closed because gravity that acts on the lid portion to generate a rotational force in the direction of closing the lid portion with the bracket shaft as a rotation axis is minimized. The abrupt movement immediately after the start is suppressed, and the lid portion begins to close gently.

  When the lid starts to close and the bracket starts to rotate, the drive link connected to the base end of the bracket is driven upward from the lowest position, and the drive cam connected to the drive link It rotates in the opposite direction to when the lid is opened. By the rotation of the drive cam, the damper connected to the drive cam contracts or expands contrary to the opening operation. By the contraction or extension of the damper, the rotation speed of the drive cam is reduced, the drive speed of the drive link is reduced, and the rotation speed of the bracket is reduced. As a result, the abrupt operation immediately after the start and end of the closing operation of the lid is suppressed, and the lid closes gently.

  More specifically, the damper includes a first damper, and the damper upper shaft is disposed adjacent to the link lower shaft, and the first damper rotatably connects the first damper to the drive cam. In the state including the upper shaft and the bracket supporting the lid portion in the fully closed state along the horizontal direction, the base end portion of the bracket is rotated to the uppermost position along the horizontal direction, and the elastic member is The extension between the base and the base end of the bracket is maximized, the drive link is driven to the uppermost position, and the drive cam has the link lower shaft and the first damper upper shaft at the uppermost position. The first damper is in an extended state, the bracket supports the lid portion in a fully open state along the vertical direction, and the base end portion of the bracket is in the vertical direction. The lowest position along The elastic member has a minimum extension between the base and the base end of the bracket, the drive link is driven to the lowest position, and the drive cam is connected to the link lower shaft and The open / close mechanism of the commercial cooking kettle may be configured such that the first damper upper shaft is rotated so as to be positioned at the lowest position, and the first damper is in a contracted state.

  In this case, in the opening operation of the lid portion, when the bracket rotates from the uppermost position along the horizontal direction to the lowermost position along the vertical direction, the drive link connected to the base end portion of the bracket Is driven downward. Then, the drive cam connected to the drive link rotates, the link lower shaft provided in the drive link moves downward, and the upper portion of the first damper disposed adjacent to the link lower shaft. The axis moves downward. The downward movement of the first damper upper shaft causes the first damper connected to the drive cam via the first damper upper shaft to contract. Due to the contraction of the first damper, the rotation speed of the drive cam is reduced, the drive speed of the drive link is reduced, and the rotation speed of the bracket is reduced. Thereby, a sudden operation in the opening operation of the lid portion is suppressed, and the lid portion can be gently opened.

  Further, in the closing operation of the lid portion, when the bracket rotates from the lowest position along the vertical direction to the uppermost position along the horizontal direction, the drive link connected to the base end portion of the bracket is Drive upward. The drive cam connected to the drive link rotates in the opposite direction to the opening operation of the lid, the link lower shaft moves upward, and is disposed adjacent to the link lower shaft. The first damper upper shaft moves upward. The upward movement of the first damper upper shaft extends the first damper connected to the drive cam via the first damper upper shaft. By the extension of the first damper, the rotation speed of the drive cam is reduced, the drive speed of the drive link is reduced, and the rotation speed of the bracket is reduced. Thereby, a sudden operation in the closing operation of the lid portion is suppressed, and the lid portion can be closed gently.

  The damper includes a second damper, and the damper upper shaft includes a second damper upper shaft that is disposed apart from the link lower shaft and rotatably connects the second damper to the drive cam. In the state where the bracket supports the lid portion in a fully closed state along the horizontal direction, the base end portion of the bracket is rotated to the uppermost position along the horizontal direction, and the elastic member includes the base and the The extension between the base end of the bracket is maximum, the drive link is driven to the uppermost position, and the drive cam has the link lower shaft at the uppermost position and the second damper upper shaft at the uppermost position. The second damper is rotated so as to be positioned at a lower position, and the base end portion of the bracket is in a state where the second damper is contracted and the bracket supports the lid portion in a fully open state along the vertical direction. Bottom along the vertical direction The elastic member has a minimum extension between the base and the base end of the bracket, the drive link is driven to the lowest position, and the drive cam is the link lower shaft. Is rotated so that the second damper upper shaft is located at the uppermost position, and the open / close mechanism of the commercial cooking pot is configured so that the second damper is in the extended state. May be.

  In this case, in the opening operation of the lid portion, when the bracket rotates from the uppermost position along the horizontal direction to the lowermost position along the vertical direction, the drive link connected to the base end portion of the bracket Is driven downward. Then, the drive cam connected to the drive link rotates, the link lower shaft moves downward, and the second damper upper shaft arranged away from the link lower shaft moves upward. The upward movement of the second damper upper shaft extends the second damper connected to the drive cam via the second damper upper shaft. By the extension of the second damper, the rotation speed of the drive cam is reduced, the drive speed of the drive link is reduced, and the rotation speed of the bracket is reduced. Thereby, a sudden operation in the opening operation of the lid portion is suppressed, and the lid portion can be gently opened.

  Further, in the closing operation of the lid portion, when the bracket rotates from the lowest position along the vertical direction to the uppermost position along the horizontal direction, the drive link connected to the base end portion of the bracket is Drive upward. The drive cam connected to the drive link rotates in the opposite direction to the opening operation of the lid, the link lower shaft moves upward, and is spaced apart from the link lower shaft. The second damper upper shaft moves downward. The downward movement of the second damper upper shaft causes the second damper connected to the drive cam via the second damper upper shaft to contract. Due to the contraction of the second damper, the rotation speed of the drive cam is reduced, the drive speed of the drive link is reduced, and the rotation speed of the bracket is reduced. Thereby, a sudden operation in the closing operation of the lid portion is suppressed, and the lid portion can be closed gently.

  The damper includes a first damper and a second damper, and the damper upper shaft is disposed adjacent to the link lower shaft, and the first damper rotatably connects the first damper to the drive cam. An upper shaft and a second damper upper shaft that is spaced apart from the link lower shaft and pivotally connects the second damper to the drive cam; and the bracket fully closes the lid portion along the horizontal direction. In the state where the bracket is supported, the base end portion of the bracket is rotated to the uppermost position along the horizontal direction, and the elastic member extends to the maximum between the base and the base end portion of the bracket. The drive link is driven to the uppermost position, and the drive cam is rotated so that the first damper upper shaft is located at the uppermost position and the second damper upper shaft is located at the lowermost position, The first damper is extended The second damper is in a contracted state, and the base end portion of the bracket is rotated to the lowest position along the vertical direction while the bracket supports the lid portion in a fully open state along the vertical direction. The elastic member has a minimum extension between the base and the base end of the bracket, the drive link is driven to the lowest position, and the drive cam has the first damper upper shaft at the lowest position. And the second damper upper shaft is pivoted to the uppermost position, the first damper is contracted, and the second damper is in the extended state. A hook opening / closing mechanism may be configured.

  In this case, in the opening operation of the lid portion, when the bracket rotates from the uppermost position along the horizontal direction to the lowermost position along the vertical direction, the drive link connected to the base end portion of the bracket Is driven downward. Then, the drive cam connected to the drive link rotates, the link lower shaft moves downward, and the first damper upper shaft arranged adjacent to the link lower shaft moves downward, The second damper upper shaft disposed apart from the link lower shaft moves upward. The downward movement of the first damper upper shaft causes the first damper coupled to the drive cam via the first damper upper shaft to contract. The upward movement of the second damper upper shaft extends the second damper connected to the drive cam via the second damper upper shaft. Due to the contraction of the first damper and the extension of the second damper, the rotation speed of the drive cam is reduced, the drive speed of the drive link is reduced, and the rotation speed of the bracket is reduced. Thereby, a sudden operation in the opening operation of the lid portion is suppressed, and the lid portion can be gently opened.

  Further, in the closing operation of the lid portion, when the bracket rotates from the lowest position along the vertical direction to the uppermost position along the horizontal direction, the drive link connected to the base end portion of the bracket is Drive upward. The drive cam connected to the drive link rotates in the opposite direction to the opening operation of the lid portion, the link lower shaft moves upward, and the first cam disposed adjacent to the link lower shaft is disposed. The upper shaft of the first damper moves upward, and the upper shaft of the second damper arranged apart from the lower shaft of the link moves downward. The upward movement of the first damper upper shaft extends the first damper, and the downward movement of the second damper upper shaft contracts the second damper. By the extension of the first damper and the contraction of the second damper, the rotation speed of the drive cam is reduced, the drive speed of the drive link is reduced, and the rotation speed of the bracket is reduced. Thereby, a sudden operation in the closing operation of the lid portion is suppressed, and the lid portion can be closed gently.

  For example, the base includes a first drive lever that is rotatably supported via a lever shaft along a horizontal direction, and a stopper that restricts a rotation range of the first drive lever, and the damper The lower shaft includes a first damper lower shaft that rotatably connects the first damper and the first drive lever, and the bracket supports the lid portion in the fully closed state, and the first damper The drive lever rotates to the uppermost position and contacts the stopper, the lower shaft of the first damper is driven to the uppermost position, and the bracket supports the lid portion in the fully opened state. The first cooking lever is pivoted to the lowermost position so as to abut against the stopper, and the open / close mechanism of the commercial cooking kettle is arranged so that the first damper lower shaft is driven to the lowermost position. It may be configured.

  In this case, in the opening operation of the lid portion, when the bracket is rotated from the uppermost position along the horizontal direction to the lowermost position along the vertical direction, first, the first drive is performed with the lever shaft as the rotation axis. Rotate the lever from the uppermost position to the lowermost position. As the first drive lever pivots downward, the first damper lower shaft connecting the first damper to the first drive lever moves downward, and the first damper is in the fully closed state of the lid. It moves downward while maintaining the extended state.

  Due to the downward movement of the first damper, the drive cam connected to the first damper via the first damper upper shaft is rotated, and the link lower shaft adjacent to the first damper upper shaft is moved. Moved down. Due to the downward movement of the link lower shaft, the drive link connected to the drive cam via the link lower shaft is driven downward, and the bracket is connected to the drive link via the link upper shaft. The base end portion of the lens rotates downward from the uppermost position along the horizontal direction. By the downward rotation of the base end portion of the bracket, the lid portion supported by the bracket rotates upward and starts to open.

  Thus, the opening operation of the lid portion is started by starting the opening operation of the lid portion by the link mechanism including the first drive lever, the first damper, the drive cam, the drive link, and the bracket. Sometimes the necessary force can be reduced and the opening of the lid can be facilitated. Further, as described above, in the opening operation of the lid portion, due to the contraction of the first damper, the rotation speed of the drive cam is reduced, the drive speed of the drive link is reduced, and the rotation speed of the bracket is reduced. Is alleviated. Therefore, in the opening operation of the lid portion, the lid portion can be opened by gently operating.

  Further, in the closing operation of the lid portion, when the bracket rotates from the lowermost position along the vertical direction to the uppermost position along the horizontal direction, the base end portion of the bracket is interposed via the link upper shaft. The connected drive link moves upward from the lowest position. Due to the upward movement of the drive link, the drive cam connected to the drive link via the link lower shaft rotates in the opposite direction to the opening operation of the lid. By the rotation of the drive cam, the first damper upper shaft adjacent to the link lower shaft moves upward.

  Due to the upward movement of the first damper upper shaft, the first damper moves upward in the vertical direction, and the first drive lever connected to the first damper via the first damper lower shaft is It pivots upward from the lowest position, and stops in contact with the stopper at the uppermost position. Further, the upward movement of the first damper upper shaft causes the first damper to extend, so that the rotational speed of the drive cam is relaxed, the travel speed of the drive link is relaxed, and the rotational speed of the bracket is Is alleviated. Therefore, in the closing operation of the lid portion, the lid portion can be closed by gently operating.

  Note that the upward rotation of the first drive lever and the extension of the first damper may proceed simultaneously, or one may proceed first and the other proceed later. However, it is preferable that the first damper extends after the first drive lever comes into contact with the stopper and stops turning upward. Accordingly, in the closing operation of the lid portion, the lid portion can be operated quickly from the start to immediately before the end, and the lid portion can be operated gently before the end. The operation sequence of the first drive lever and the first damper can be changed by, for example, adjusting the viscosity coefficient of the liquid used in the first damper or the size of the hole provided in the piston valve. This can be achieved by adjusting the viscous braking coefficient of one damper.

  For example, the base includes a second drive lever that is rotatably supported via a lever shaft along a horizontal direction, and a stopper that restricts a rotation range of the second drive lever, and the damper The lower shaft includes a second damper lower shaft that rotatably connects the second damper and the second drive lever, and the bracket supports the lid portion in the fully closed state, The drive lever is pivoted to the lowermost position and abuts against the stopper, the second damper lower shaft is driven to the lowermost position, and the bracket supports the lid portion in the fully opened state. The second cooking lever is pivoted to the uppermost position and comes into contact with the stopper, and the open / close mechanism of the commercial cooking kettle is arranged so that the second damper lower shaft is driven to the uppermost position. It may be configured.

  In this case, in the closing operation of the lid portion, when the bracket is rotated from the lowermost position along the vertical direction to the uppermost position along the horizontal direction, first, the second drive is performed using the lever shaft as the rotation axis. Rotate the lever from the uppermost position to the lowermost position. When the second drive lever is pivoted downward, the second damper lower shaft connecting the second damper to the second drive lever moves downward, and the second damper is in the fully open state of the lid portion. Move downward while maintaining the stretched state.

  Due to the downward movement of the second damper, the drive cam connected to the second damper via the second damper upper shaft is rotated, and the link lower shaft separated from the second damper upper shaft is Moved upwards. Due to the upward movement of the link lower shaft, the drive link coupled to the drive cam via the link lower shaft is driven upward, and the bracket is coupled to the drive link via the link upper shaft. The base end portion of the lens rotates upward from the lowest position along the vertical direction. By the upward rotation of the base end portion of the bracket, the lid portion supported by the bracket rotates downward and begins to close.

  As described above, the closing operation of the lid is started by starting the closing operation of the lid by the link mechanism including the second drive lever, the second damper, the drive cam, the drive link, and the bracket. Sometimes the required force can be reduced and the opening of the lid can be facilitated. Further, as described above, in the closing operation of the lid portion, due to the contraction of the second damper, the rotation speed of the drive cam is reduced, the drive speed of the drive link is reduced, and the rotation speed of the bracket is reduced. Is alleviated. Therefore, in the closing operation of the lid portion, the lid portion can be gently operated and closed.

  Further, in the opening operation of the lid portion, when the bracket rotates from the uppermost position along the horizontal direction to the lowermost position along the vertical direction, the base end portion of the bracket is interposed via the link upper shaft. The connected drive link moves downward from the uppermost position. Due to the downward movement of the drive link, the drive cam connected to the drive link via the link lower shaft rotates in the opposite direction to that when the lid is closed. By the rotation of the drive cam, the second damper upper shaft that is separated from the link lower shaft moves upward in the vertical direction.

  Due to the upward movement of the second damper upper shaft, the second damper moves upward in the vertical direction, and the second drive lever connected to the second damper via the second damper lower shaft is It pivots upward from the lowest position, and stops in contact with the stopper at the uppermost position. Further, the upward movement of the second damper upper shaft extends the second damper to reduce the rotation speed of the drive cam, reduce the movement speed of the drive link, and reduce the rotation speed of the bracket. Is alleviated. Therefore, in the opening operation of the lid portion, the lid portion can be opened by gently operating.

  Note that the upward rotation of the second drive lever and the extension of the second damper may proceed simultaneously, or one may proceed first and the other proceed later. However, it is preferable that the second damper extends after the second drive lever contacts the stopper and the upward rotation is completed. Accordingly, in the opening operation of the lid portion, the lid portion can be operated quickly from the start to immediately before the end, and the lid portion can be operated gently just before the end. The operation order of the second drive lever and the second damper can be changed by adjusting the viscosity coefficient of the liquid used in the second damper or the size of the hole provided in the piston, for example. This can be achieved by adjusting the viscous braking coefficient of the damper.

  The open / close mechanism of the commercial cooking kettle further includes, for example, an open / close lever connected to the base end portion of the bracket, and the open / close lever includes a first portion extending parallel to the bracket shaft, and the first portion. And a second portion extending perpendicularly to the first portion.

  With this configuration, for example, a cook who opens and closes the commercial cooking pot holds the second portion of the opening and closing lever when starting the opening operation of the lid, and A force perpendicular to the first part can be applied to the second part. As a result, the opening / closing lever can apply a rotational force that rotates the lid portion upward with the bracket shaft as the rotation axis, and the lid opening operation can be started.

  Similarly, for example, a cook who opens and closes the commercial cooking kettle grips the second portion of the opening and closing lever when starting the closing operation of the lid, and is opposite to the opening operation. Directional forces can be applied to the second part. Thereby, the closing force of the lid part can be started by applying a rotational force for rotating the lid part downward with the bracket shaft as a rotational axis to the bracket by the opening / closing lever.

  The open / close mechanism of the commercial cooking kettle further includes, for example, an open / close lever connected to the drive cam, the open / close lever extending in parallel with the cam shaft, and extending perpendicularly to the first portion. A second portion.

  With this configuration, for example, a cook who opens and closes the commercial cooking pot holds the second portion of the opening and closing lever when starting the opening operation of the lid, and A force perpendicular to the first part can be applied to the second part. Accordingly, the drive cam is rotated by the opening / closing lever, the drive link is driven downward, the base end portion of the bracket is rotated downward about the bracket shaft as a rotation axis, and the lid portion is opened. Can start.

  Similarly, for example, a cook who opens and closes the commercial cooking kettle grips the second portion of the opening and closing lever when starting the closing operation of the lid, and is opposite to the opening operation. Directional forces can be applied to the second part. As a result, the drive cam is rotated in the opposite direction to the opening operation by the opening / closing lever, the base end portion of the bracket is rotated upward with the bracket shaft as a rotation axis, and the lid portion is closed. Can start.

  The open / close mechanism of the commercial cooking pot may include, for example, an electric motor that generates power for opening and closing the lid. More specifically, the electric motor can generate power for opening and closing the lid, for example, by connecting a rotating shaft to the bracket shaft, the cam shaft, or the lever shaft.

  ADVANTAGE OF THE INVENTION According to this invention, while opening and closing the cover part of a heavy commercial cooking pot, the opening / closing mechanism of the commercial cooking pot which can open and close a cover part gently can be provided.

The front view of the opening-and-closing mechanism of the commercial cooking pot concerning Embodiment 1 of the present invention. The side view which shows the state which the opening-and-closing mechanism shown in FIG. 1 supported the cover part in the fully-closed state. The side view which shows the state which the opening-and-closing mechanism shown in FIG. 1 supported the cover part in the half-open state. The side view which shows the state which the opening-and-closing mechanism shown in FIG. 1 supported the cover part in the fully open state. FIG. 3 is an enlarged view of the vicinity of a drive cam of an opening / closing mechanism in a fully closed state of a lid portion shown in FIG. 2. FIG. 4 is an enlarged view of the vicinity of a drive cam of the opening / closing mechanism in a half-open state of the lid portion shown in FIG. 3. FIG. 5 is an enlarged view of the vicinity of a drive cam of the opening / closing mechanism in a fully opened state of the lid portion shown in FIG. 4. The front view of the opening-and-closing mechanism of the commercial cooking pot concerning Embodiment 2 of the present invention. The side view which shows the state which the opening-and-closing mechanism shown in FIG. 8 supported the cover part in the fully-closed state. The front view of the opening-and-closing mechanism of the commercial cooking pot concerning Embodiment 3 of the present invention. The side view which shows the state which the opening-and-closing mechanism shown in FIG. 10 supported the cover part in the fully-closed state.

DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of an open / close mechanism for a commercial cooking pot according to the present invention will be described with reference to the drawings.
[Embodiment 1]
FIG. 1 is a front view of a commercial cooking kettle opening / closing mechanism 100 according to Embodiment 1 of the present invention, and shows a state in which the lid L of the commercial cooking kettle CP is supported in a fully closed state. FIG. 2 is a side view showing a state in which the opening / closing mechanism 100 shown in FIG. 1 supports the lid L in a fully closed state. FIG. 3 is a side view showing a state in which the opening / closing mechanism 100 shown in FIG. 1 supports the lid L in a half-open state. FIG. 4 is a side view showing a state in which the opening / closing mechanism 100 shown in FIG. 1 supports the lid L in a fully opened state.

  The open / close mechanism 100 for the commercial cooking pot according to the present embodiment is a mechanism for performing the opening / closing operation of the lid L of the commercial cooking pot CP provided with the lid portion L and the hook portion P. A bracket 20, an elastic member 30, a drive cam 40, a drive link 50, and a damper 60.

  Commercial cooking pot CP is used for cooking such as cooking of food in school lunches, employee cafeterias, nursing homes or restaurants, cooking facilities such as side dishes, or other commercial facilities. Cooking utensils. The commercial cooking pot CP includes a pot portion P and a lid portion L that are significantly larger in size and weight than home cooking utensils.

  The open / close mechanism 100 for the commercial cooking pot of the present embodiment includes, for example, an opening operation for opening the lid portion L of the commercial cooking pot CP from the fully closed state to the fully open state, and a closing operation for closing from the fully open state to the fully closed state. It can be carried out. As shown in FIGS. 1 and 2, the commercial cooking pot CP is, for example, in a fully closed state, in which the lid portion L is supported along the horizontal direction, and the opening portion of the hook portion P is closed by the lid portion L. become. For example, in the fully open state shown in FIG. 4, the commercial cooking pot CP is in a state in which the lid L is supported along the vertical direction and the opening of the pot P is opened.

  The base 10 is a frame-like structure made of metal such as stainless steel. For example, as shown in FIG. 1, the base 10 is arranged on both sides of the hook portion P, and is configured in a frame shape in which the portions on both sides of the hook portion P are connected to each other. The base 10 supports the bracket 20 rotatably on the upper end portion on one side of the hook portion P via a bracket shaft 20a. Specifically, the base 10 has, for example, a bearing portion 10a that rotatably supports the bracket shaft 20a at an upper end portion on one side of the hook portion P. Further, the base 10 can support the rotation shaft Pa of the hook portion P, for example, via another bearing portion 10b below the bearing portion 10a for the bracket shaft 20a at the upper end portion.

  The base 10 supports, for example, a tilting portion 10c that tilts the hook portion P at the upper end portion on the side opposite to the upper end portion where the bearing portion 10a for the bracket shaft 20a is provided. Yes. The tilting part 10c includes, for example, a worm gear, a worm wheel constituting the worm gear is fixed to the rotation shaft Pa of the hook part P, and a worm constituting the worm gear is connected to a handle 10d for tilting the hook part P. . Accordingly, when the tilting portion 10c rotates the handle 10d for tilting the hook portion P to rotate the worm, the worm wheel rotates and the rotation shaft Pa of the hook portion P rotates, and the hook portion P Is configured to tilt forward and backward.

  The base 10 includes, for example, a first drive lever 11 that is rotatably supported via a lever shaft 10e along the horizontal direction, and a stopper 10f that restricts the rotation range of the first drive lever 11. doing. The base 10 includes, for example, a second drive lever 12 that is rotatably supported via a lever shaft 10e along the horizontal direction, and a stopper 10g that restricts a rotation range of the second drive lever 12. have.

  In the illustrated example, the first drive lever 11 and the second drive lever 12 are rotatably supported on the base 10 by a common lever shaft 10e. However, the first drive lever 11 and the second drive lever 12 may be rotatably supported on the base 10 via independent lever shafts. The base 10 may not have the first drive lever 11 and the second drive lever 12, or may have only one of the first drive lever 11 and the second drive lever 12.

  The first drive lever 11 and the second drive lever 12 are elongate plate-like members made of, for example, metal, the base end portion is pivotally supported by a lever shaft 10e, and foot pedals 11a and 12a are provided at the respective distal end portions. ing. The 1st drive lever 11 and the 2nd drive lever 12 are arrange | positioned at the lower part of the base 10, are extended from the back side of the base 10 and the commercial cooking pot CP to the front side, and protrude ahead. As shown in FIG. 1, the stoppers 10 f and 10 g are formed in a slit shape extending vertically in the lower part on the front side of one side of the base 10, for example, and are inserted through the first drive lever 11 and the second drive lever 12, respectively. I am letting.

  The bracket 20 supports the lid portion L so that it can be opened and closed with respect to the hook portion P. The bracket 20 is rotatably supported by the base 10 via a bracket shaft 20a along the horizontal direction. The bracket 20 is a metal member such as stainless steel, for example, and a base end portion 21 that is rotatably supported by the base 10 via a bracket shaft 20a, and an arm portion 22 that supports the lid portion L. have.

  The base end portion 21 of the bracket 20 is, for example, a pair of plate-like side wall portions 21a that are arranged to face each other with a space in the direction along the bracket shaft 20a and extend vertically downward to the bracket shaft 20a, and the bracket shaft 20a. It has the flat upper wall part 21b which extends in the direction along which connects a pair of side wall part 21a. For example, the side wall 21a and the upper wall 21b of the base end 21 are perpendicular to each other. In the fully closed state of the lid portion L in which the lid portion L shown in FIGS. 1 and 2 is supported along the horizontal direction, the base wall portion 21 is rotated to the uppermost position along the horizontal direction. It becomes a state. Further, the base end portion 21 is a state in which the upper wall portion 21b is rotated to the lowest position along the vertical direction in the fully open state of the lid portion L in which the lid portion L shown in FIG. 4 is supported along the vertical direction. become.

  The arm portion 22 of the bracket 20 includes, for example, two support arms 22a arranged at intervals in a direction along the bracket shaft 20a, and a flat plate-like connecting portion 22b that connects between the two support arms 22a. And have. For example, the arm portion 22 is fixed to the lid portion L by fastening the connecting portion 22b to the lid portion L of the commercial cooking pot CP with fastening members such as bolts and nuts. The arm portion 22 extends along the upper surface of the lid portion L from the peripheral portion of the lid portion L toward the center portion of the lid portion L.

  For example, the bracket shaft 20 a is provided on each of the pair of side wall portions 21 a of the base end portion 21 of the bracket 20. The bracket shaft 20a is, for example, perpendicular to the side wall portion 21a and protrudes in the opposite direction from the pair of side wall portions 21a. The bracket shaft 20 a is rotatably supported by a bearing portion 10 a at the upper end portion of the base 10. That is, the base end portion 21 of the bracket 20 is rotatably supported by the upper end portion of the base 10 via the bracket shaft 20a. Thereby, the bracket 20 is rotatably supported by the base 10 via the bracket axis | shaft 20a installed in the base end part 21. As shown in FIG.

  For example, the bracket 20 can be configured such that the arm portion 22 is rotatable with respect to the base end portion 21. Specifically, for example, a flat plate-like connecting portion 22b of the arm portion 22 is superimposed on the upper wall portion 21b of the base end portion 21, and bolts are inserted into the through holes provided in the upper wall portion 21b and the connecting portion 22b. Insert. Then, the arm 22 can be rotated with respect to the base 21 by fastening a nut to the bolt inserted into the through hole of the connecting portion 22b of the arm 22 and the upper wall 21b of the base 21. The bracket 20 can be configured.

  In the illustrated example, a bolt fixed to the upper wall portion 21 b of the base end portion 21 of the bracket 20 is inserted into a through hole provided in the connecting portion 22 b of the arm portion 22, and a nut fastened to the bolt is a handle 23. Is provided. The bracket 20 rotates the handle 23 in a direction in which the fastening with the bolt is loosened, thereby releasing the fastening between the arm portion 22 and the base end portion 21, and the arm portion 22 with respect to the base end portion 21 around the bolt. It can be rotated. Thereby, the lid part L supported by the arm part 22 can be rotated around the handle 23. Further, the bracket 20 rotates the handle 23 in a direction in which the nut is fastened to the bolt, thereby fastening the arm part 22 and the base end part 21 and fixing the arm part 22 to the base end part 21. be able to.

  The elastic member 30 is attached to the base 10 and the base end portion 21 of the bracket 20 in an extended state. As the elastic member 30, for example, a metal coil spring can be used. However, the elastic member 30 is not particularly limited as long as it is a member that generates an elastic force in the contraction direction when it is extended. For example, as shown in FIG. 2, one end of the elastic member 30 is locked to an upper locking portion 21 c provided on the upper wall portion 21 b of the base end portion 21 of the bracket 20, and the other end of the elastic member 30 is, for example, It is locked to a lower locking portion 10 h provided on the base 10.

  For example, as shown in FIG. 3, the elastic coefficient of the elastic member 30 can be set so that the lid L can be stationary in a half-open state in which the lid L is opened at an angle of approximately 45 °. Specifically, the lid acting on the bracket 20 by the rotational force in the direction of opening the lid L acting on the bracket 20 by the elastic force of the elastic member 30 and the gravity acting on the lid L in the half-open state of the lid L. The elastic coefficient of the elastic member 30 can be set so that the rotational force in the direction of closing the portion L is balanced.

  5, 6, and 7 respectively show the vicinity of the drive cam 40 of the opening / closing mechanism that supports the lid L shown in FIGS. 2, 3, and 4 in the fully closed state, the half open state, and the fully open state. It is an enlarged view. 5, 6, and 7 show a part of the configuration of the damper 60 in a cut state.

  The drive cam 40 is rotatably supported on the base 10 via a cam shaft 40a. The drive cam 40 is, for example, a generally disk-shaped metal member, and a cam shaft 40a is provided at the center. Both end portions of the cam shaft 40a in the axial direction are supported by the base 10, and the drive cam 40 rotates around the cam shaft 40a as a rotation shaft. The drive cam 40 has, for example, a screw hole 41 at the periphery. In the illustrated example, the drive cam 40 has two screw holes 41a and 41b that are adjacent to each other in the circumferential direction and one screw hole 41c that is spaced apart from these two screw holes in the circumferential direction. Yes.

  The angular interval in the rotational direction of the drive cam 40 between the two screw holes 41a and 41b adjacent to each other in the circumferential direction of the drive cam 40 is, for example, 35 °. The angular interval in the rotational direction of the drive cam 40 between the two screw holes 41a and 41c that are most separated in the circumferential direction of the drive cam 40 is, for example, 160 °. Note that the positions of the screw holes 41a, 41b, and 41c and the angular intervals between the screw holes 41a, 41b, and 41c are not particularly limited, and can be appropriately changed according to the dimensions of the members that constitute the opening / closing mechanism 100. .

  As shown in FIG. 2, the drive link 50 is rotatably connected to the base end portion 21 of the bracket 20 via a link upper shaft 51. As shown in FIGS. 2 and 5, the drive link 50 is rotatably connected to the drive cam 40 via a link lower shaft 52 below the base end portion 21 of the bracket 20. The drive link 50 is a metal rod-shaped member, for example. The link upper shaft 51 and the link lower shaft 52 can be configured by, for example, a universal joint or a ball joint.

  More specifically, the upper end portion of the drive link 50 is connected to the bracket 20 via a link upper shaft 51 attached to a link connecting portion 21d provided on the upper wall portion 21b of the base end portion 21 of the bracket 20, for example. The base end portion 21 is rotatably connected. Moreover, the lower end part of the drive link 50 is connected with the drive cam 40 so that rotation is possible via the link downward axis | shaft 52 attached to the screw hole 41b of the drive cam 40, for example. The link lower shaft 52 can be attached to, for example, a screw hole 41b between two screw holes 41a and 41c that are circumferentially separated at the peripheral edge of the drive cam 40.

  The damper 60 is rotatably connected to the drive cam 40 via a damper upper shaft 61, and is rotatably connected to the base 10 below the drive cam 40 via a damper lower shaft 62. In the commercial cooking pot opening and closing mechanism 100 of the present embodiment, the damper 60 includes a first damper 60A and a second damper 60B, and the damper upper shaft 61 includes the first damper upper shaft 61A and the second damper upper shaft 61B. The damper lower shaft 62 includes a first damper lower shaft 62A and a second damper lower shaft 62B.

  The damper 60, the damper upper shaft 61, and the damper lower shaft 62 may include only the first damper 60A, the first damper upper shaft 61A, and the first damper lower shaft 62A, respectively, and the second damper 60B and the second damper 60A. Only the upper shaft 61B and the second damper lower shaft 62B may be included. Hereinafter, the configurations common to the first damper 60A and the second damper 60B will be collectively referred to as the damper 60. Similarly, regarding the configuration common to the first damper upper shaft 61A and the second damper upper shaft 61B and the configuration common to the first damper lower shaft 62A and the second damper lower shaft 62B, these are the damper upper shaft 61, respectively. The damper lower shaft 62 will be collectively referred to.

  The damper 60 includes, for example, a cylinder 63, a free piston 64 and a piston valve 65 accommodated in the cylinder 63, and a piston rod 65 a fixed to the piston valve 65. The free piston 64 partitions the inside of the cylinder 63 into an oil chamber 63a filled with oil and a gas chamber 63b filled with gas. The piston rod 65a is rotatably connected to the lower part of the base 10 via a damper lower shaft 62. The cylinder 63 is connected to, for example, a metal shaft 66, and this shaft 66 is connected to the drive cam 40 via a damper upper shaft 61. For example, the length of the piston rod 65a and the shaft 66 may be adjusted by an adjusting screw. The damper upper shaft 61 and the damper lower shaft 62 can be configured by, for example, a universal joint or a ball joint.

  In the first damper 60A, when the base 10 has the first drive lever 11, for example, the piston rod 65a is rotatably connected to the first drive lever 11 via the first damper lower shaft 62A. . When the base 10 does not have the first drive lever 11, the first damper 60 </ b> A can be rotatably connected to a beam or the like below the base 10 via the first damper lower shaft 62 </ b> A. The first damper 60A is rotatably connected to the drive cam 40 via the first damper upper shaft 61A. The first damper upper shaft 61A is attached to the screw hole 41a adjacent to the screw hole 41b to which the link lower shaft 52 is attached in the drive cam 40, and is arranged adjacent to the link lower shaft 52.

  When the base 10 has the second drive lever 12, the second damper 60B is, for example, a piston rod 65a that is rotatably connected to the second drive lever 12 via the second damper lower shaft 62B. . When the base 10 does not have the second drive lever 12, the second damper 60 </ b> B can be rotatably connected to a beam or the like below the base 10 via the second damper lower shaft 62 </ b> B. The second damper 60B is rotatably connected to the drive cam 40 via the second damper upper shaft 61B. The second damper upper shaft 61 </ b> B is attached to the screw hole 41 c separated from the screw hole 41 b to which the link lower shaft 52 is attached in the drive cam 40, and is spaced apart from the link lower shaft 52.

  Each part which comprises the opening / closing mechanism 100 of the commercial cooking pot of this embodiment is comprised so that it may be in the following states in the state which the bracket 20 supported the cover part L in the fully closed state along a horizontal direction. As shown in FIG. 1, the base end portion 21 of the bracket 20 is turned to the uppermost position along the horizontal direction. As shown in FIG. 2, the elastic member 30 has the largest elongation between the base 10 and the base end portion 21 of the bracket 20. The drive link 50 is driven to the uppermost position. As shown in FIG. 5, the drive cam 40 is rotated so that the link lower shaft 52 and the first damper upper shaft 61A are located at the uppermost position, and the second damper upper shaft 61B is located at the lowermost position. It becomes a state. The first damper 60A is in an extended state, and the second damper 60B is in a contracted state.

  Moreover, each part which comprises the opening / closing mechanism 100 of the commercial cooking pot of this embodiment is comprised so that it may be in the following states in the state which the bracket 20 supported the cover part L in the full open state. As shown in FIG. 4, the base end portion 21 of the bracket 20 is turned to the lowest position along the vertical direction. The elastic member 30 is minimally stretched between the base 10 and the base end portion 21 of the bracket 20. The drive link 50 is driven to the lowest position. As shown in FIG. 7, the drive cam 40 is rotated so that the link lower shaft 52 and the first damper upper shaft 61A are positioned at the lowermost position, and the second damper upper shaft 61B is positioned at the uppermost position. It becomes a state. The first damper 60A is in a contracted state, and the second damper 60B is in an extended state.

  Moreover, each part which comprises the opening / closing mechanism 100 of the commercial cooking pot of this embodiment is the bracket 20 which supported the cover part L in the fully-closed state, when the base 10 has the 1st drive lever 11. It is configured to be in the following state. As shown in FIGS. 1 and 2, the first drive lever 11 is rotated to the uppermost position and is in contact with the upper portion of the stopper 10f, and the first damper lower shaft 62A is driven to the uppermost position. It will be in the state. Similarly, each part constituting the open / close mechanism 100 for the commercial cooking pot of the present embodiment is such that the bracket 20 supports the lid L in the fully closed state when the base 10 has the second drive lever 12. In this state, it is configured to be in the following state. As shown in FIGS. 1 and 2, the second drive lever 12 is rotated to the lowermost position and is in contact with the lower part of the stopper 10g, and the second damper lower shaft 62B is driven to the lowermost position. It will be in the state.

  Moreover, each part which comprises the opening / closing mechanism 100 of the commercial cooking pot of this embodiment is the state which the bracket 20 supported the cover part L in the fully open state, when the base 10 has the 1st drive lever 11. Therefore, it is configured to be in the following state. Contrary to the case shown in FIGS. 1 and 2, the first drive lever 11 is rotated to the lowermost position and is in contact with the lower part of the stopper 10f, and the first damper lower shaft 62A is It will be in the state driven to the downward position. Similarly, each part which comprises the opening / closing mechanism 100 of the commercial cooking pot of this embodiment is the bracket 20 which supported the cover part L in the fully open state, when the base 10 has the 2nd drive lever 12. It is configured to be in the following state. Contrary to the case shown in FIGS. 1 and 2, the second drive lever 12 rotates to the uppermost position and comes into contact with the upper portion of the stopper 10g, and the second damper lower shaft 62B is moved to the uppermost position. It will be in the state driven to the upper position.

  Hereinafter, the operation of the opening / closing mechanism 100 for the commercial cooking pot according to this embodiment will be described.

  As described above, the open / close mechanism 100 for a commercial cooking pot according to the present embodiment is used for cooking such as cooking of food in a cooking place, a cooking facility, other commercial facilities, etc., and compared with a domestic cooking utensil. Thus, it is a mechanism that opens and closes the lid L of the commercial cooking pot CP that is significantly larger in size and weight.

  As described above, the conventional lid upper lid opening and closing device can facilitate the opening and closing operation of the upper lid by arranging the connecting device including the spring mechanism. However, an elastic plate is used to correct that the upper lid suddenly opens and closes beyond a predetermined angle due to the action of the spring, and the delicate opening and closing cannot be performed. For this reason, the conventional lid upper lid opening / closing device not only takes time to adjust the elastic plate, but also has maintenance problems such as wear and deterioration of the elastic plate. In order to solve such a problem, in the conventional lid upper lid opening and closing device, it is conceivable to replace the elastic plate and the related member with a hydraulic damper. However, if only the hydraulic damper is used, the force required to open and close the upper lid becomes excessive, and the burden on the cooker may be significantly increased. Moreover, in order to ensure the safety of the cook, it is required to open and close the upper lid gently.

  On the other hand, the open / close mechanism 100 for the commercial cooking pot according to the present embodiment is a mechanism for opening and closing the commercial cooking pot CP provided with the pot portion P and the lid portion L as described above. The base 10, the bracket 20, the elastic member 30, the drive cam 40, the drive link 50, and the damper 60 are provided. The bracket 20 is rotatably supported by the base 10 via a bracket shaft 20a extending in the horizontal direction, and supports the lid portion L so that the lid portion L can be opened and closed. The elastic member 30 is attached to the base 10 and the base end portion 21 of the bracket 20 in an extended state. The drive cam 40 is rotatably supported on the base 10 via a cam shaft 40a. The drive link 50 is rotatably connected to the base end portion 21 of the bracket 20 via a link upper shaft 51, and is rotatably connected to the drive cam 40 below the base end portion 21 via a link lower shaft 52. Has been. The damper 60 is rotatably connected to the drive cam 40 via a damper upper shaft 61, and is rotatably connected to the base 10 below the drive cam 40 via a damper lower shaft 62.

  According to the open / close mechanism 100 for the commercial cooking pot having such a configuration, the lid portion L is rotated upward from the fully closed state along the horizontal direction to the fully open state along the vertical direction, and the opening portion of the pot portion P is opened. The opening operation of the lid L can be performed. At this time, a tensile force acts on the proximal end portion 21 of the bracket 20 from the elastic member 30 attached to the proximal end portion 21 of the bracket 20 that supports the lid portion L in an extended state. This tensile force generates a rotational force that pivots the lid L upward about the bracket shaft 20a as a rotational axis. Thereby, the force required to lift the heavy lid portion L can be reduced, and the opening operation of the lid portion L can be facilitated.

  In the opening operation of the lid portion L, the bracket 20 that supports the lid portion L rotates about the bracket shaft 20a as a rotation shaft, and the base end portion 21 extends from the uppermost position along the horizontal direction to the lowermost position along the vertical direction. Rotate. At this time, the drive link 50 connected to the base end portion 21 of the bracket 20 is driven downward from the uppermost position in the vertical direction to the lowermost position. Further, the drive cam 40 to which the drive link 50 is connected rotates about the cam shaft 40a as a rotation axis. The rotation of the drive cam 40 is rotatably connected to the drive cam 40 via a damper upper shaft 61, and is rotatably connected to the base 10 below the drive cam 40 via a damper lower shaft 62. The damper 60 is expanded or contracted.

  By the extension or contraction of the damper 60, the rotation speed of the drive cam 40 is reduced, the drive speed of the drive link 50 is reduced, and the rotation speed of the bracket 20 is reduced. Thereby, a sudden operation immediately after the start of the opening operation of the lid L is suppressed, and the lid L begins to open gently. Therefore, for example, the amount of steam released from between the pot portion P and the lid portion L immediately after the start of the opening operation of the lid portion L is limited, and a large number of cooks unexpectedly opening and closing the commercial cooking pot CP. Can be prevented from being exposed to steam, and the safety during the opening operation of the commercial cooking pot CP can be improved.

  When the lid portion L is further opened and the angle of the lid portion L with respect to the horizontal direction is gradually increased, the gravity that acts on the lid portion L and generates the rotational force in the direction of closing the lid portion L with the bracket shaft 20a as the rotation axis gradually decreases. . Thereby, the cover L is quickly opened by the tensile force acting on the base end portion 21 of the bracket 20 from the elastic member 30. When the lid L further opens and the angle with respect to the vertical direction gradually decreases, the bracket 20 gradually approaches the lowermost position, the elongation of the elastic member 30 gradually decreases, the tensile force gradually decreases, and the operating speed of the lid L decreases gradually. Finally, the lid portion L is fully opened along the vertical direction. Also at this time, due to the expansion or contraction of the damper 60, the rotation speed of the drive cam 40 is reduced, the drive speed of the drive link 50 is reduced, and the rotation speed of the bracket 20 is reduced. As a result, a sudden operation immediately before the end of the opening operation of the lid portion L is suppressed, and the opening operation of the lid portion L ends gently.

  Further, the opening / closing mechanism 100 rotates the lid L downward from the fully open state along the vertical direction to the fully closed state along the horizontal direction to perform the closing operation of the lid L that closes the opening of the hook portion P. it can. At this time, the bracket 20 rotates from the lowermost position along the vertical direction to the uppermost position along the horizontal direction. In the fully open state of the lid portion L, since the gravity that acts on the bracket portion 20 to generate a rotational force in the direction of closing the lid portion L about the bracket shaft 20a as the rotation axis is minimized, the closing operation of the lid portion L is performed. The abrupt operation immediately after the start of the operation is suppressed, and the closing operation of the lid L is started gradually.

  When the closing operation of the lid portion L is started and the bracket 20 starts to rotate, the drive link 50 connected to the base end portion 21 of the bracket 20 is driven upward from the lowest position and connected to the drive link 50. The drive cam 40 rotates in the direction opposite to that when the lid L is opened. Due to the rotation of the drive cam 40, the damper 60 connected to the drive cam 40 contracts or expands contrary to the opening operation. By the contraction or extension of the damper 60, the rotation speed of the drive cam 40 is reduced, the drive speed of the drive link 50 is reduced, and the rotation speed of the bracket 20 is reduced. Thereby, the abrupt operation immediately after the start of the closing operation of the lid portion L and immediately before the end thereof is suppressed, and the lid portion L is gently closed.

  As described above, the elastic coefficient of the elastic member 30 is, for example, as shown in FIG. 3, when the lid portion L is in a half-open state, the rotational force acting on the bracket 20 by the elastic force of the elastic member 30; It can be set so that the rotational force acting on the bracket 20 is balanced by the gravity acting on the lid L. In this case, in the middle of the opening / closing operation of the lid portion L, the lid portion L can be stopped in a half-open state and maintained in that state.

  Further, in the commercial cooking pot opening and closing mechanism 100 of the present embodiment, the damper 60 includes a first damper 60A and a second damper 60B. The damper upper shaft 61 is disposed adjacent to the link lower shaft 52, and is spaced apart from the first damper upper shaft 61A that rotatably connects the first damper 60A to the drive cam 40, and the link lower shaft 52. The second damper 60B includes a second damper upper shaft 61B rotatably connected to the drive cam 40.

  In this case, each part of the opening / closing mechanism 100 is in the following state with the bracket 20 supporting the lid portion L in the fully closed state along the horizontal direction. That is, as shown in FIG. 2, the base end portion 21 of the bracket 20 is turned to the uppermost position along the horizontal direction. The elastic member 30 has the largest elongation between the base 10 and the base end portion 21 of the bracket 20. The drive link 50 is driven to the uppermost position. As shown in FIG. 5, the drive cam 40 is rotated so that the first damper upper shaft 61A is located at the uppermost position and the second damper upper shaft 61B is located at the lowermost position. The first damper 60A is extended, and the second damper 60B is in a contracted state.

  Moreover, in the state which the bracket 20 supported the cover part L in the fully open state along a perpendicular direction, each part of the opening-and-closing mechanism 100 will be in the following states. That is, as shown in FIG. 4, the base end portion 21 of the bracket 20 is turned to the lowest position along the vertical direction. The elastic member 30 has a minimum elongation between the base 10 and the base end portion 21 of the bracket 20. The drive link 50 is driven to the lowest position. As shown in FIG. 7, the drive cam 40 is rotated so that the first damper upper shaft 61A is located at the lowermost position and the second damper upper shaft 61B is located at the uppermost position. The first damper 60A is contracted and the second damper 60B is expanded.

  In this case, in the opening operation of the lid portion L, when the base end portion 21 of the bracket 20 rotates from the uppermost position along the horizontal direction to the lowermost position along the vertical direction, it is connected to the base end portion 21 of the bracket 20. The driven drive link 50 is driven downward. Then, the drive cam 40 connected to the drive link 50 rotates, the link lower shaft 52 moves downward, and the first damper upper shaft 61A disposed adjacent to the link lower shaft 52 moves downward. The second damper upper shaft 61 </ b> B arranged separately from the link lower shaft 52 moves upward.

  The downward movement of the first damper upper shaft 61A contracts the first damper 60A connected to the drive cam 40 via the first damper upper shaft 61A. The upward movement of the second damper upper shaft 61B extends the second damper 60B connected to the drive cam 40 via the second damper upper shaft 61B. By the contraction of the first damper 60A and the extension of the second damper 60B, the rotation speed of the drive cam 40 is reduced, the drive speed of the drive link 50 is reduced, and the rotation speed of the bracket 20 is reduced. Thereby, the abrupt operation | movement in the opening operation | movement of the cover part L is suppressed, and the cover part L can be opened gently.

  Further, in the closing operation of the lid portion L, when the bracket 20 rotates from the lowermost position along the vertical direction to the uppermost position along the horizontal direction, the drive link 50 connected to the base end portion 21 of the bracket 20 is Drive upward. The drive cam 40 connected to the drive link 50 rotates in the opposite direction to the opening operation of the lid L, the link lower shaft 52 moves upward, and is disposed adjacent to the link lower shaft 52. In addition, the first damper upper shaft 61A moves upward, and the second damper upper shaft 61B arranged away from the link lower shaft 52 moves downward.

  The upward movement of the first damper upper shaft 61A extends the first damper 60A, and the downward movement of the second damper upper shaft 61B contracts the second damper 60B. By the extension of the first damper 60A and the contraction of the second damper 60B, the rotation speed of the drive cam 40 is reduced, the drive speed of the drive link 50 is reduced, and the rotation speed of the bracket 20 is reduced. Thereby, the abrupt operation | movement in the closing operation of the cover part L is suppressed, and the cover part L can be closed gently.

  In the commercial cooking pot opening and closing mechanism 100 of the present embodiment, the damper 60 includes a first damper 60A and a second damper 60B, the damper upper shaft 61 includes a first damper upper shaft 61A and a second damper upper shaft 61B, The configuration in which the damper lower shaft 62 includes the first damper lower shaft 62A and the second damper lower shaft 62B has been described. However, the damper 60, the damper upper shaft 61, and the damper lower shaft 62 include only the first damper 60A, the first damper upper shaft 61A, and the first damper lower shaft 62A, respectively, or the second damper 60B and the second damper 60A. In some cases, only the upper shaft 61B and the second damper lower shaft 62B are included. The operation when the damper 60, the damper upper shaft 61, and the damper lower shaft 62 include only the first or second configuration is the same as the operation of each unit when both the first and second configurations are included. Therefore, the description is omitted.

  Furthermore, in the commercial cooking kettle opening / closing mechanism 100 of the present embodiment, the base 10 includes a first drive lever 11 that is rotatably supported via a lever shaft 10e along the horizontal direction, and the first drive lever. And a stopper 10f that regulates the 11 rotation range. The damper lower shaft 62 includes a first damper lower shaft 62A that rotatably connects the first damper 60A and the first drive lever 11. In the opening / closing mechanism 100, with the bracket 20 supporting the lid L in the fully closed state, the first drive lever 11 rotates to the uppermost position and contacts the stopper 10f, and the first damper lower shaft 62A is It is configured to be driven to the uppermost position. In the opening / closing mechanism 100, with the bracket 20 supporting the lid L in the fully open state, the first drive lever 11 rotates to the lowest position and contacts the stopper 10f, and the first damper lower shaft 62A is at the lowest position. It is comprised so that it may be in the state driven to the downward position.

  In this case, in the opening operation of the lid L, when the bracket 20 is rotated from the uppermost position along the horizontal direction to the lowermost position along the vertical direction, first, the lever shaft 10e supported by the base 10 is rotated. As a shaft, the first drive lever 11 is rotated from the uppermost position to the lowermost position. For example, when the cook steps on the foot pedal 11a at the tip of the first drive lever 11 with his / her foot, the first drive lever 11 is rotated from the uppermost position to the lowermost position. As a result of the downward rotation of the first drive lever 11, the first damper lower shaft 62A connecting the first damper 60A to the first drive lever 11 moves downward as shown in FIGS. One damper 60A moves downward. At this time, the first damper 60A may extend.

  Due to the downward movement of the first damper 60A, the drive cam 40 connected to the first damper 60A via the first damper upper shaft 61A is rotated, and the link lower side adjacent to the first damper upper shaft 61A is rotated. The shaft 52 is driven downward. By driving the link lower shaft 52 downward, the drive link 50 connected to the drive cam 40 via the link lower shaft 52 is driven downward, and connected to the drive link 50 via the link upper shaft 51. The base end portion 21 of the bracket 20 is rotated downward from the uppermost position along the horizontal direction. By the downward rotation of the base end portion 21 of the bracket 20, the lid portion L supported by the bracket 20 starts to rotate upward and open.

  Thus, the opening operation of the lid portion L is started by starting the opening operation of the lid portion L by the link mechanism including the first drive lever 11, the first damper 60A, the drive cam 40, the drive link 50, and the bracket 20. The force required sometimes can be reduced, and the opening operation of the lid L can be facilitated. Further, as described above, in the opening operation of the lid portion L, as shown in FIGS. 5 to 7, the rotational speed of the drive cam 40 is reduced by the contraction of the first damper 60A, and the drive speed of the drive link 50 is increased. Is relaxed, and the rotational speed of the bracket 20 is relaxed. Therefore, in the opening operation of the lid portion L, the lid portion L can be opened by gently operating.

  Therefore, according to the open / close mechanism 100 for the commercial cooking pot of the present embodiment, the heavy lid portion L can be easily opened, and the burden on the cooker can be reduced. Moreover, it is possible to prevent the cook from being unexpectedly exposed to a large amount of steam, and to improve the safety when the commercial cooking pot CP is opened. In addition, since the cook can step on the foot pedal 11a at the tip of the first drive lever 11 at a position away from the opening of the pot P, the lid L can be opened, so that the commercial cooking pot CP can be opened. Safety during operation can be further improved.

  Further, in the closing operation of the lid portion L, when the bracket 20 rotates from the lowermost position along the vertical direction to the uppermost position along the horizontal direction, the base end portion 21 of the bracket 20 is connected via the link upper shaft 51. The drive link 50 thus moved moves upward from the lowest position. When the drive link 50 is moved upward, the drive cam 40 connected to the drive link 50 via the link lower shaft 52 opens the lid L as shown in FIGS. It rotates in the opposite direction. By the rotation of the drive cam 40, the first damper upper shaft 61A adjacent to the link lower shaft 52 is driven upward.

  By driving the first damper upper shaft 61A upward, the first damper 60A moves upward, and the first drive lever 11 connected to the first damper 60A via the first damper lower shaft 62A is in the lowest position. From the top to the uppermost position and abuts against the stopper 10f of the base 10 to stop the rotation. Further, as the first damper upper shaft 61A moves upward, as shown in FIGS. 7 to 5, the first damper 60A extends to reduce the rotational speed of the drive cam 40, and the drive link 50 moves. The speed is relaxed, and the rotation speed of the bracket 20 is relaxed. Therefore, in the closing operation of the lid portion L, the lid portion L can be gently operated to close it.

  The upward rotation of the first drive lever 11 and the extension of the first damper 60A may proceed simultaneously, or one may precede and the other may proceed later. However, it is preferable that the first damper 60A extends after the first drive lever 11 comes into contact with the stopper 10f and stops turning upward. Thereby, in the closing operation of the lid portion L, the lid portion L can be operated quickly from the start to immediately before the end, and the lid portion L can be operated gently before the end. The operation order of the first drive lever 11 and the first damper 60A is adjusted by, for example, adjusting the viscosity coefficient of the liquid used in the first damper 60A or the size of the hole provided in the piston. This can be realized by adjusting the viscous braking coefficient of 60A.

  Furthermore, in the open / close mechanism 100 for the commercial cooking pot of the present embodiment, the base 10 includes a second drive lever 12 that is rotatably supported via a lever shaft 10e along the horizontal direction, and the second drive lever. And a stopper 10g for restricting the 12 rotation ranges. The damper lower shaft 62 includes a second damper lower shaft 62B that rotatably connects the second damper 60B and the second drive lever 12. In the opening / closing mechanism 100, with the bracket 20 supporting the lid portion L in the fully closed state, the second drive lever 12 rotates to the lowest position and contacts the stopper 10g, and the second damper lower shaft 62B is It is comprised so that it may be in the state driven to the lowest position. In the opening / closing mechanism 100, with the bracket 20 supporting the lid portion L in the fully open state, the second drive lever 12 rotates to the uppermost position and contacts the stopper 10g, and the second damper lower shaft 62B is at the uppermost position. It is comprised so that it may be in the state driven to the upper position.

  In this case, in the closing operation of the lid L, when the bracket 20 is rotated from the lowermost position along the vertical direction to the uppermost position along the horizontal direction, first, the lever shaft 10e supported by the base 10 is rotated. As a shaft, the second drive lever 12 is rotated from the uppermost position to the lowermost position. For example, when the cook steps on the foot pedal 12a at the tip of the second drive lever 12 with his / her foot, the second drive lever 12 is rotated from the uppermost position to the lowermost position. As the second drive lever 12 pivots downward, as shown in FIGS. 7 to 5, the second damper lower shaft 62 </ b> B connecting the second damper 60 </ b> B to the second drive lever 12 moves downward, and the second drive lever 12 moves downward. 2 damper 60B moves downward. At this time, the second damper 60B may be extended.

  Due to the downward movement of the second damper 60B, the drive cam 40 connected to the second damper 60B via the second damper upper shaft 61B is rotated, and the link lower part separated from the second damper upper shaft 61B. The shaft 52 is driven upward. By driving the link lower shaft 52 upward, the drive link 50 coupled to the drive cam 40 via the link lower shaft 52 is driven upward, and coupled to the drive link 50 via the link upper shaft 51. The base end portion 21 of the bracket 20 is rotated upward from the lowest position along the vertical direction. By the upward rotation of the base end portion 21 of the bracket 20, the lid portion L supported by the bracket 20 rotates downward and begins to close.

  Thus, the closing operation of the lid portion L is started by starting the closing operation of the lid portion L by the link mechanism including the second drive lever 12, the second damper 60B, the drive cam 40, the drive link 50, and the bracket 20. The force required sometimes can be reduced, and the opening operation of the lid L can be facilitated. Further, as described above, in the opening operation of the lid portion L, as shown in FIGS. 7 to 5, the rotational speed of the drive cam 40 is reduced by the contraction of the second damper 60B, and the drive speed of the drive link 50 is increased. Is relaxed, and the rotational speed of the bracket 20 is relaxed. Therefore, in the closing operation of the lid portion L, the lid portion L can be closed by being operated gently.

  Therefore, according to the opening / closing mechanism 100 for the commercial cooking pot of the present embodiment, the heavy lid portion L can be easily closed, and the burden on the cooker can be reduced. Moreover, it is possible to prevent the cook from being exposed to danger by the lid portion L that is suddenly closed, and to improve the safety during the closing operation of the commercial cooking pot CP. In addition, since the cook can step on the foot pedal 12a at the tip of the second drive lever 12 at a position away from the opening of the pot portion P to open the lid L, the cooking cooker CP can be closed. Safety during operation can be further improved.

  Further, in the opening operation of the lid portion L, when the bracket 20 rotates from the uppermost position along the horizontal direction to the lowermost position along the vertical direction, the base end portion 21 of the bracket 20 is connected via the link upper shaft 51. The connected drive link 50 moves downward from the uppermost position. The downward movement of the drive link 50 causes the drive cam 40 connected to the drive link 50 via the link lower shaft 52 to reverse the closing operation of the lid L as shown in FIGS. Rotate in the direction. By the rotation of the drive cam 40, the second damper upper shaft 61B separated from the link lower shaft 52 moves upward in the vertical direction.

  Due to the upward movement of the second damper upper shaft 61B, the second damper 60B moves upward in the vertical direction, and is connected to the second damper 60B via the second damper lower shaft 62B. Pivots upward from the lowest position, and stops contacting the stopper 10g at the uppermost position. Further, the upward movement of the second damper upper shaft 61B causes the second damper 60B to extend and the rotational speed of the drive cam 40 to be reduced, as shown in FIGS. The speed is relaxed, and the rotation speed of the bracket 20 is relaxed. Therefore, in the opening operation of the lid portion L, the lid portion L can be opened by gently operating.

  The upward rotation of the second drive lever 12 and the extension of the second damper 60B may proceed simultaneously, or one may precede and the other may proceed later. However, it is preferable that the second damper 60B extends after the second drive lever 12 contacts the stopper 10g and the upward rotation is completed. Thereby, in the opening operation of the lid portion L, the lid portion L can be operated quickly from the start to immediately before the end, and the lid portion L can be operated gently before the end. The operation order of the second drive lever 12 and the second damper 60B is adjusted by, for example, adjusting the viscosity coefficient of the liquid used in the second damper 60B or the size of the hole provided in the piston. This can be realized by adjusting the viscous braking coefficient.

  As described above, according to the open / close mechanism 100 for the commercial cooking kettle of the present embodiment, the lid L of the heavy commercial cooking kettle CP can be easily opened and closed, and the lid L is opened and closed gently. be able to. In particular, the open / close mechanism 100 for the commercial cooking kettle according to the present embodiment includes both the first damper 60A and the second damper 60B, so that the first damper 60A and the lid damper L can be opened and closed. It is possible to obtain an optimum relaxation effect of the opening / closing speed of the lid L by the cooperation of the second damper 60B.

  Therefore, according to the open / close mechanism 100 for the commercial cooking pot of the present embodiment, the lid portion L is slowly operated immediately before and after the opening / closing operation of the lid portion L is started, and during that time, the lid portion L is smoothly and quickly moved. It becomes possible to operate. Further, by using the damper 60, it is possible to solve a maintenance problem in the conventional lid opening and closing device.

  In the business cooking kettle opening / closing mechanism 100 of the present embodiment, a configuration has been described in which the cooker depresses the foot pedal 12a at the tip of the first drive lever 11 or the second drive lever 12 to open and close the lid L. . However, the opening / closing mechanism 100 of the present embodiment may include an electric motor that generates power for opening and closing the lid L. Specifically, the rotary shaft of the electric motor is connected to the lever shaft 10e, the lever shaft 10e is rotated by the electric motor, and the first drive lever 11 or the second drive lever 12 fixed to the lever shaft 10e is rotated. Can be made. Thereby, for example, it becomes possible for the cook to open and close the commercial cooking pot CP simply by pressing the start switch of the electric motor.

[Embodiment 2]
Next, a second embodiment of the opening / closing mechanism for a commercial cooking pot according to the present invention will be described with reference to FIGS. 8 and 9 with reference to FIGS. 3 to 7 of the opening / closing mechanism 100 according to the first embodiment. . FIG. 9 is a front view of the commercial cooking kettle opening / closing mechanism 200 according to Embodiment 2 of the present invention, and shows a state in which the lid L of the commercial cooking kettle CP is supported in a fully closed state. FIG. 9 is a side view showing a state in which the opening / closing mechanism 200 shown in FIG. 8 supports the lid L in a fully closed state.

  The open / close mechanism 200 for the commercial cooking pot of the present embodiment is different from the open / close mechanism 100 described in the first embodiment in that it further includes an open / close lever 70 connected to the base end portion 21 of the bracket 20. Since the other points of the opening / closing mechanism 200 of the present embodiment are the same as those of the opening / closing mechanism 100 of the above-described first embodiment, the same reference numerals are given to the same parts and the description thereof is omitted. The opening / closing lever 70 is, for example, a metal bar-like member, and includes a first portion 71 extending in parallel to the bracket shaft 20a, a second portion 72 extending perpendicularly to the first portion 71, and the first portion 71 mounted on the bracket 20. And a connecting portion 73 that is connected to the base end portion 21.

  In the open / close mechanism 200 for a commercial cooking pot of the present embodiment, for example, when the cook performs an opening operation to open the lid L from the fully closed state to the fully open state, the lid L is fully closed and arranged along the vertical direction. The second portion 72 of the opened / closed lever 70 is gripped, and the second portion 72 is tilted to a position along the horizontal direction. Thereby, a rotational force acts on the base end portion 21 of the bracket 20 via the first portion 71 connected to the second portion 72 and the connecting portion 73 connected to the first portion 71. This rotational force rotates the base end portion 21 of the bracket 20 from the uppermost position along the horizontal direction to the lowermost position along the vertical direction with the bracket shaft 20a as the rotation axis. Thereby, the opening operation | movement of the cover part L is performed similarly to the opening-and-closing mechanism 100 of above-mentioned Embodiment 1. FIG.

  Further, in the open / close mechanism 200 for the commercial cooking pot of the present embodiment, for example, when the cook performs a closing operation for closing the lid L from the fully opened state to the fully closed state, the lid L is fully opened along the horizontal direction. The second portion 72 of the opened opening / closing lever 70 is gripped, and the second portion 72 is raised to a position along the vertical direction. As a result, a rotational force in the direction opposite to that during the opening operation is applied to the first portion 71 connected to the second portion 72 and the connecting portion 73 connected to the first portion. This rotational force causes the bracket 20 axis to rotate from the lowermost position along the vertical direction to the uppermost position along the horizontal direction with the bracket 20 axis as the rotation axis. Thereby, the closing operation of the lid L is performed in the same manner as the opening / closing mechanism 100 of the first embodiment.

  Therefore, according to the open / close mechanism 200 for the commercial cooking pot of the present embodiment, the same effects as those of the open / close mechanism 100 of the first embodiment can be obtained. In addition, since the opening / closing mechanism 200 includes the opening / closing lever 70, the cooker can open and close the lid L with the opening / closing lever 70 at a position away from the opening of the pot portion P. The safety at the time of opening and closing the lid portion L can be further improved. In the opening / closing mechanism 200 of this embodiment, the first drive lever 11 and the second drive lever 12 may be omitted, and the damper lower shaft 62 may be rotatably supported by the lower portion of the base 10.

  In the commercial cooking kettle opening / closing mechanism 200 of the present embodiment, the configuration in which the cook opens and closes the lid L with the opening / closing lever 70 has been described. However, the opening / closing mechanism 200 of the present embodiment may include an electric motor 80 that generates power for opening and closing the lid L. Specifically, the rotating shaft of the electric motor 80 can be connected to the bracket shaft 20a, the bracket shaft 20a can be rotated by the electric motor 80, and the bracket 20 fixed to the bracket shaft 20a can be rotated. Thereby, for example, the cook can open and close the commercial cooking pot CP only by pressing the switch of the electric motor 80.

[Embodiment 3]
Next, a third embodiment of the opening / closing mechanism for a commercial cooking pot according to the present invention will be described with reference to FIGS. 10 and 11 with reference to FIGS. 3 to 7 of the opening / closing mechanism 100 according to the first embodiment. . FIG. 10 is a front view of an open / close mechanism 300 for a commercial cooking pot according to Embodiment 3 of the present invention. FIG. 11 is a side view showing a state where the opening / closing mechanism shown in FIG. 10 supports the lid portion in a fully closed state.

  The open / close mechanism 300 for a commercial cooking pot of the present embodiment is different from the open / close mechanism 100 described in the first embodiment in that it further includes an open / close lever 90 connected to the cam shaft 40a. Since the other points of the opening / closing mechanism 300 of the present embodiment are the same as those of the opening / closing mechanism 100 of the first embodiment, the same parts are denoted by the same reference numerals and the description thereof is omitted. The opening / closing lever 90 is, for example, a metal bar-like member, and includes a first portion 91 extending in parallel to the cam shaft 40a and a second portion 92 extending perpendicularly to the first portion 91. In the illustrated example, the opening / closing lever has a third portion 93 at the tip of the second portion 92 and extending in a direction opposite to the first portion 91 with respect to the second portion 92 in parallel with the first portion 91.

  In the commercial cooking kettle opening / closing mechanism 300 of the present embodiment, for example, when the cook performs an opening operation to open the lid L from the fully closed state to the fully open state, it can be performed by the following procedure. First, with the lid L fully closed, the second portion 92 of the opening / closing lever 90 or the second portion 92 of the opening / closing lever 90 with the tip of the second portion 92 of the opening / closing lever 90 and the third portion 93 disposed at the lowest position in the vertical direction. The third portion 93 is gripped and the tip of the second portion 92 is moved upward. As a result, a rotational force that rotates the drive cam 40 acts on the first portion 91 connected to the second portion 92, and the opening operation of the lid portion L is performed in the same manner as the opening / closing mechanism 100 of the first embodiment. Done.

  Further, in the commercial cooking kettle opening / closing mechanism 300 of the present embodiment, for example, when the cook performs a closing operation for closing the lid L from the fully open state to the fully closed state, the following procedure can be used. First, with the lid L fully open, the second portion 92 or the third portion of the opening / closing lever 90 with the tip of the second portion 92 of the opening / closing lever 90 and the third portion 93 disposed at the uppermost position in the vertical direction. The portion 93 is gripped and the tip of the second portion 92 is moved downward. As a result, a rotational force that rotates the drive cam 40 in the direction opposite to that during the opening operation acts on the first portion 91 connected to the second portion 92, similarly to the opening / closing mechanism 100 of the first embodiment. The lid L is closed.

  Therefore, according to the open / close mechanism 300 for the commercial cooking pot of the present embodiment, the same effects as those of the open / close mechanism 100 of the first embodiment can be obtained. In addition, since the opening / closing mechanism 300 includes the opening / closing lever 90, the cooker can open and close the lid L with the opening / closing lever 90 at a position away from the opening of the pot portion P. The safety at the time of opening and closing the lid portion L can be further improved. In the opening / closing mechanism 300 of the present embodiment, the first drive lever 11 and the second drive lever 12 may be omitted, and the damper lower shaft 62 may be rotatably supported by the lower portion of the base 10.

  In addition, in the commercial cooking pot opening / closing mechanism 300 of the present embodiment, the configuration in which the cook opens and closes the lid L with the opening / closing lever has been described. However, the opening / closing mechanism 300 of the present embodiment may include an electric motor 80 that generates power for opening and closing the lid L. Specifically, the rotating shaft of the electric motor 80 can be connected to the cam shaft 40a, the cam shaft 40a can be rotated by the electric motor 80, and the drive cam 40 fixed to the cam shaft 40a can be rotated. Thereby, for example, the cook can open and close the commercial cooking pot CP only by pressing the switch of the electric motor 80.

  The embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. They are also included in the present invention.

10: base, 10f: stopper, 10g: stopper, 11: first drive lever, 12: second drive lever, 20: bracket, 20a: bracket shaft, 21: base end, 30: elastic member, 40: drive Cam: 40a: Cam shaft, 50: Drive link, 51: Link upper shaft, 52: Link lower shaft, 60: Damper, 60A: First damper, 60B: Second damper, 61: Damper upper shaft, 61A: First Damper upper shaft, 61B: second damper upper shaft, 62: damper lower shaft, 62A: first damper lower shaft, 62B: second damper lower shaft, 70: open / close lever, 71: first portion, 72: second portion 80: Electric motor, 90: Opening / closing lever, 91: First part, 92: Second part, 100: Opening / closing mechanism, 200: Opening / closing mechanism, 300: Opening / closing mechanism, CP: Commercial cooking pot, L: Cover part, P: Kettle

Claims (9)

An open / close mechanism for a commercial cooking kettle with a kettle and a lid,
A base, a bracket supported by the base via a bracket shaft extending in a horizontal direction, and supporting the lid portion so as to be openable and closable with respect to the hook portion; a base of the base and the bracket; An elastic member attached to the end in an extended state, a drive cam supported rotatably on the base via a cam shaft, and rotatable on the base end of the bracket via a link upper shaft A drive link connected to the drive cam via a link lower shaft below the base end portion and rotatably connected to the drive cam via a damper upper shaft, An open / close mechanism for a commercial cooking kettle, comprising: a damper that is pivotally connected to the base via a damper lower shaft below a drive cam. The damper includes a first damper,
The damper upper shaft includes a first damper upper shaft disposed adjacent to the link lower shaft and rotatably connecting the first damper to the drive cam;
With the bracket supporting the lid portion in a fully closed state along the horizontal direction, the base end portion of the bracket is rotated to the uppermost position along the horizontal direction, and the elastic member includes the base and the bracket. So that the drive link is driven to the uppermost position and the drive cam is positioned so that the link lower shaft and the first damper upper shaft are at the uppermost position. Rotated, the first damper is in an extended state,
With the bracket supporting the lid portion in the fully open state along the vertical direction, the base end portion of the bracket is rotated to the lowest position along the vertical direction, and the elastic member moves between the base and the bracket. Elongation to the base end is minimized, the drive link is driven to the lowermost position, and the drive cam is rotated so that the link lower shaft and the first damper upper shaft are located at the lowermost position. The open / close mechanism for a commercial cooking kettle according to claim 1, wherein the first damper is moved and is in a contracted state. The damper includes a second damper,
The damper upper shaft includes a second damper upper shaft that is spaced apart from the link lower shaft and rotatably connects the second damper to the drive cam.
With the bracket supporting the lid portion in a fully closed state along the horizontal direction, the base end portion of the bracket is rotated to the uppermost position along the horizontal direction, and the elastic member includes the base and the bracket. And the drive link is driven to the uppermost position, and the drive cam has the lower link shaft at the uppermost position and the second damper upper shaft at the lowermost position. The second damper is in a contracted state.
With the bracket supporting the lid portion in the fully open state along the vertical direction, the base end portion of the bracket is rotated to the lowest position along the vertical direction, and the elastic member moves between the base and the bracket. Elongation to the base end is minimized, the drive link is driven to the lowest position, and the drive cam has the link lower shaft at the lowermost position and the second damper upper shaft at the uppermost position. 2. The open / close mechanism for a commercial cooking kettle according to claim 1, wherein the second damper is in an extended state, being rotated so as to be positioned at a position. The damper includes a first damper and a second damper,
The damper upper shaft is disposed adjacent to the link lower shaft and is spaced apart from the first damper upper shaft that pivotally connects the first damper to the drive cam and the link lower shaft. A second damper upper shaft that rotatably couples the two dampers to the drive cam;
With the bracket supporting the lid portion in a fully closed state along the horizontal direction, the base end portion of the bracket is rotated to the uppermost position along the horizontal direction, and the elastic member includes the base and the bracket. The drive link is driven to the uppermost position, and the drive cam has the first damper upper shaft located at the uppermost position and the second damper upper shaft. Is pivoted so as to be located at the lowest position, the first damper is extended, and the second damper is contracted,
With the bracket supporting the lid portion in the fully open state along the vertical direction, the base end portion of the bracket is rotated to the lowest position along the vertical direction, and the elastic member moves between the base and the bracket. Elongation to the base end is minimized, the drive link is driven to the lowermost position, the drive cam has the first damper upper shaft located at the lowermost position, and the second damper upper shaft is 2. The open / close mechanism for a commercial cooking kettle according to claim 1, wherein the open / close mechanism of the commercial cooking pot according to claim 1, wherein the open / close mechanism is rotated so as to be positioned at the uppermost position, the first damper is contracted, and the second damper is extended. The base includes a first drive lever that is rotatably supported via a lever shaft along a horizontal direction, and a stopper that restricts a rotation range of the first drive lever,
The damper lower shaft includes a first damper lower shaft that rotatably connects the first damper and the first drive lever.
With the bracket supporting the lid portion in the fully closed state, the first drive lever rotates to the uppermost position and contacts the stopper, and the first damper lower shaft is driven to the uppermost position. The state
With the bracket supporting the lid in the fully open state, the first drive lever is pivoted to the lowest position and contacts the stopper, and the first damper lower shaft is driven to the lowest position. It is a state, The opening-and-closing mechanism of the commercial cooking pot of Claim 2 or Claim 4 characterized by the above-mentioned. The base includes a second drive lever that is rotatably supported via a lever shaft along a horizontal direction, and a stopper that restricts a rotation range of the second drive lever.
The damper lower shaft includes a second damper lower shaft that rotatably connects the second damper and the second drive lever.
With the bracket supporting the lid in the fully closed state, the second drive lever rotates to the lowermost position and contacts the stopper, and the second damper lower shaft is driven to the lowermost position. The state
With the bracket supporting the lid in the fully open state, the second drive lever is pivoted to the uppermost position and abuts against the stopper, and the second damper lower shaft is driven to the uppermost position. It is a state, The opening-and-closing mechanism of the commercial cooking pot of Claim 3 or Claim 4 characterized by the above-mentioned. An opening / closing lever connected to the base end of the bracket;
The said opening / closing lever has a 1st part extended in parallel with the said bracket axis | shaft, and a 2nd part extended perpendicularly | vertically to this 1st part, The Claim 1 characterized by the above-mentioned. Opening and closing mechanism for commercial cooking pots. An opening / closing lever connected to the drive cam;
The said opening / closing lever has a 1st part extended in parallel with the said cam shaft, and a 2nd part extended perpendicularly | vertically to this 1st part, The Claim 1 characterized by the above-mentioned. Opening and closing mechanism for commercial cooking pots.   The opening / closing mechanism of the commercial cooking pot according to any one of claims 1 to 6, further comprising an electric motor that generates power for opening and closing the lid.

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