Pressure fryer

Abstract

To provide a pressure fryer which allows a user to easily determine that a lid body is at a closing position, and surely prevents excessive operation of a handle.SOLUTION: A pressure fryer 1 comprises: an oil tank 6 supported to a housing 2; an arm 15 which is coupled to a rotary axis 22 on a rear side of the oil tank 6, is rotatable between a lodging position where the arm traverses an upper side of an opening 7 in a cross direction and a standing position where the arm retreats from the upper side of the opening 7 to a rear side, and has on a front end of the arm, an operation part 35 capable of being engaged to an engagement plate 45 provided on the oil tank 6; a handle shaft 16 which penetrates in the arm 15 in an orthogonal state, screwed to a female screw part 19 in the arm 15, and has on its upper end part, a handle 28; and a lid body 17 which is coupled to a lower end part of the handle shaft 16, and by screw feeding of the handle shaft 16 by the handle 28, is lowered with the handle shaft 16 and is pressed to the opening 7. The pressure fryer further has a knob 81 and a wire 77 (one embodiment of identification means) for identifying whether the lid body 17 is at the closing position where the lid body is pressed to the opening 7.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a pressure fryer that heats cooking oil in an oil tank sealed with a lid to pressure-cook food ingredients. [Background technology]

[0002] The pressure fryer has an oil vat that is open on the top and can contain cooking oil, a heating means such as a pulse burner that heats the cooking oil in the oil vat, and a lid that can open and close the opening of the oil vat, and by heating the cooking oil with the heating means while the oil vat is sealed with the lid, it is possible to pressure-cook ingredients. As disclosed in Patent Document 1, this lid has a lid body that can close the opening of the oil vat, and an arm with a handle shaft that supports the lid body screwed into a female screw portion held inside, and the rear end of the arm is rotatably connected by a rotating shaft in the left-right direction at the rear side of the oil vat, and is attached in a state where it is biased toward the opening side by a torsion coil spring provided on the rotating shaft. A gasket is provided on the outer periphery of the back side of the lid body, which abuts against the opening when the oil tank is closed. The arm is tilted forward using an operating part provided at the front end of the arm and the operating part is engaged with a locking part provided on the oil tank. The handle provided on the arm is then rotated to screw the handle shaft down and lower the lid body. When the lid body reaches the lowermost closed position, it is pressed against the opening and the gasket seals the gap between the lid body and the oil tank. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-250 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in a pressure fryer such as that described in Patent Document 1, when the lid body is lowered, it is difficult for the operator to know that the lid body has reached the closed position. Therefore, the operator may continue to rotate the handle excessively even after the lid body has reached the closed position, thereby screwing the handle shaft, which results in wasting unnecessary time and effort.

[0005] Therefore, an object of the present disclosure is to provide a pressure fryer that allows easy identification of whether the lid body is in the closed position and reliably prevents unnecessary operation of the handle. [Means for solving the problem]

[0006] In order to achieve the above object, the present disclosure provides an oil tank that is supported by a housing, has an open top, and contains cooking oil; A heating means for heating the cooking oil in the oil tank; an arm connected to a horizontal rotating shaft installed in the housing at the rear of the oil vat and rotatable between a laid-down position in which it crosses over the opening in the front-rear direction and an upright position in which it retreats rearward from over the opening, the arm having an operating part at its front end that can be engaged with an engaging part provided on the oil vat when in the laid-down position; a handle shaft that penetrates the arm perpendicularly and screws into a female screw portion inside the arm, and has a handle at an upper end that is on the upper side of the arm when in the collapsed position; A lid body connected to a lower end of a handle shaft that is a lower side of the arm in a collapsed position, and lowered together with the handle shaft by a screw feed of the handle shaft by the handle and pressed against the opening. The present invention is characterized in that it is provided with an identification means capable of identifying whether the lid body is in the closed position in which it is pressed against the opening. In another aspect of the present disclosure, in the above configuration, the identification means includes an identification member supported on a support member provided on the arm so as to be movable up and down on a front surface of the arm when the arm is in a laid-down position, and a connecting member connecting the lid body and the identification member, The identification member is linked to the up and down movement of the lid body via a connecting member, and is maintained at a predetermined first height when in the non-blocking position where the lid body is not pressed against the opening, and when in the blocking position of the lid body, moves to a predetermined second height which is different in the up-down position from the first height. Another aspect of the present disclosure is characterized in that, in the above configuration, the identification member is supported on the front surface of the support member so as to be movable in the left-right direction, and when the lid body is in the closed position, it moves to a predetermined left-right position at a second height that is different in left-right position from the first height. Another aspect of the present disclosure is a locking member that can be manually slid in the left and right direction from a locked position where the locking member engages with the operating unit that is engaged with the engaging portion at the closed position of the lid body to restrict operation of the operating unit to an unlocked position where the locking member is released from the operating unit and allows operation of the operating unit; a biasing means for biasing the locking member to a locked position; an interlocking body that slides integrally with the locking member on the front surface of the support member; a stopper capable of locking the interlocking body when the locking member is in the unlocked position is provided, the identification member is provided on the interlocking body, and the connecting member is connected to the interlocking body, When the locking member is in the unlocked position, the interlocking body engages with the stopper at a first height to hold the locking member in the unlocked position, while when the lid body is in the closed position, the interlocking body moves to a second height where it is released from the engagement with the stopper, and slides the locking member to the locked position by the biasing means, moving the identification member to the left or right position. Another aspect of the present disclosure is characterized in that, in the above configuration, the interlocking body abuts against the support member in the locked position. Effect of the Invention

[0007] According to the present disclosure, the identification means makes it possible to easily identify that the lid body is in the closed position, thereby reliably preventing unnecessary operation of the handle. According to another aspect of the present disclosure, in addition to the above-mentioned effects, the vertical movement of the identification member makes it easier for an operator to recognize that the lid body is in the closed position. According to another aspect of the present disclosure, in addition to the above-mentioned effects, the vertical and horizontal movement of the identification member makes it even easier for an operator to recognize that the lid body is in the closed position. According to another aspect of the present disclosure, in addition to the above-mentioned effects, the identification member can be easily moved up and down and left and right by utilizing the sliding of a locking member that locks the operation of the operating unit in the closed position. According to another aspect of the present disclosure, a sound is generated when the identification member abuts against the support member, and this sound also enables an operator to recognize that the lid body has reached the closed position. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a front view of the pressure fryer (with the lid body in the closed position). [Diagram 2] FIG. 2 is a top view of the pressure fryer (with the lid body in the closed position). [Diagram 3] FIG. 2 is a side view of the pressure fryer (with the lid body in the closed position). [Figure 4] FIG. 2 is a central vertical cross-sectional view of the upper part of the pressure fryer (with the lid body in the closed position). [Diagram 5] FIG. 2 is an exploded perspective view of an operating unit and an interlocking mechanism. [Figure 6] 6A and 6B are enlarged cross-sectional views showing the operation of the interlocking mechanism, with FIG. 6A showing the lock pin in the unlocked position and FIG. 6B showing the lock pin in the locked position. [Figure 7] 7A and 7B are enlarged front views showing the operation of the interlocking mechanism, with FIG. 7A showing the lock pin in the unlocked position and FIG. 7B showing the lock pin in the locked position. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. Figures 1 to 3 are explanatory diagrams showing an example of a pressure fryer, with Figure 1 being a front view, Figure 2 being a plan view, and Figure 3 being a side view. Figure 4 is a central vertical cross-sectional view of the upper part of an oil tank. In the pressure fryer, the front side is defined as the front, and the left side of Figure 1 is defined as the left side, defining the front-rear and left-right directions. The pressure fryer 1 has a square box-shaped housing 2. The housing 2 is composed of a frame 3 and a panel 4 attached to the outside of the frame 3. Casters 5, 5... are provided at the four corners of the lower surface of the housing 2. An oil tank 6 having a square shape in a plan view is installed in the center of the housing 2. The oil tank 6 is installed with an opening 7 at the upper end protruding upward from the upper panel 4. A pulse burner (not shown) is provided as a heating means at the lower inside of the oil tank 6, and the cooking oil contained in the oil tank 6 can be heated. The upper panel 4 is provided with a lid 8 that can open and close the opening 7 of the oil tank 6. A filtering tank 9 that filters the cooking oil in the oil tank 6 is provided below the oil tank 6 in the housing 2.

[0010] A fry controller 10 is provided on the upper front side of the housing 2. The fry controller 10 has an operation panel 11 on the front side. A burner controller (not shown) is provided inside the housing 2. The burner controller controls the operation of the pulse combustor in response to instructions from the fry controller 10 in response to operation of the operation panel 11, and is capable of executing a predetermined cooking mode, filtering of cooking oil, and the like.

[0011] The lid body 8 includes an arm 15, a handle shaft 16, and a lid body 17. The arm 15 is in the shape of a square tube, and houses therein a counterweight 18 having a U-shaped cross section and a female screw portion 19. A pair of left and right connecting plates 20, 20 are connected perpendicularly to the rear end of the arm 15. The lower ends of the connecting plates 20, 20 are rotatably connected by a rotating shaft 22 to the upper ends of a pair of left and right pivot support plates 21, 21 that are erected on the panel 4 on the top surface behind the oil vat 6. Therefore, the cover 8 can be raised and lowered from the laid-down position shown by the solid line in Fig. 3 to the erected position shown by the two-dot chain line. A pair of torsion coil springs 23, 23 are mounted on the rotating shaft 22 so that the winding direction and the positions of both ends are mirror symmetrical. The lower ends 24 of the two torsion coil springs 23, 23, which are adjacent to each other in the center, are engaged with the inside of a locking bar 26 that connects the rear ends of the shaft support plates 21, 21. Meanwhile, the upper ends 25, which are located on the left and right outer sides, are engaged with the undersides of the arms 15. Therefore, the arms 15 are urged to rotate toward the open side of the oil vat 6.

[0012] The handle shaft 16, together with the counterweight 18, penetrates the arm 15 at a right angle, and a male screw portion 27 provided at the middle portion is screwed into the female screw portion 19. A cross-shaped handle 28 is attached at a right angle to the upper end of the handle shaft 16 protruding from the arm 15. The center of the upper surface of the lid body 17 is connected in a hanging state to the lower end of the handle shaft 16 protruding from the arm 15. The lid body 17 has a rectangular shape in plan view that is long in the front-to-rear direction, and a packing 30 is provided around the entire outer periphery of the lower surface. The rear end of a rod-shaped lock bar 31 is fixed to the front side of the upper surface of the lid body 17 with bolts 32, 32. A front end 33 of the lock bar 31 protrudes forward beyond the lid body 17 and is bent downward in an L-shape. A locking protrusion 34 that protrudes rearward is formed on the lower rear surface of the front end 33.

[0013] At the front end of the arm 15, an operating portion 35, a lock pin 50, and an interlocking mechanism 51 are provided. As shown in FIG. 5, the operation portion 35 includes a pair of left and right operation plates 36A, 36B, a connecting shaft 37, a gripping rod 38, a locking rod 39, a front cover 40, and a restricting plate 41. The operation plates 36A, 36B are trapezoidal in side view, and are disposed on the left and right of the arm 15 with their upper ends overlapping the arm 15 in the left-right direction when the oil vat 6 is closed by the lid 8. A connecting shaft 37 passes through the arm 15 in the left-right direction and rotatably connects the rear upper parts of the operation plates 36A, 36B to each other. A gripping rod 38 connects the front lower parts of the operation plates 36, 36 to each other. A locking rod 39 connects the rear lower parts of the operation plates 36, 36 to each other. The front cover 40 is a plate member extending in the vertical direction between the gripping rod 38 and the locking rod 39, and is disposed between the lower parts of the operation plates 36A, 36B. The regulating plate 41 is composed of a lower plate portion 42, a middle plate portion 43, and an upper plate portion 44, and is installed between the rear portions of the operation plates 36A, 36B. The lower plate portion 42 is oriented vertically facing the rear of the front cover 40 at a predetermined distance in the front-rear direction. The middle plate portion 43 is inclined so as to rise from the upper end of the lower plate portion 42 toward the rear. The upper plate portion 44 is oriented vertically so as to rise from the upper end of the middle plate portion 43 along the rear end edges of the operation plates 36A, 36B.

[0014] Meanwhile, a pair of left and right locking plates 45, 45 are provided on the front surface of the oil vat 6. A receiving groove 46 that opens forward is formed in each locking plate 45 in the front-rear direction. When the operating part 35 is swung backward while the oil vat 6 is closed by the lid 8, the locking rod 39 can be locked in the receiving groove 46.

[0015] A support base 52 is provided on the underside of the arm 15 , and the lock pin 50 and the interlocking mechanism 51 are supported by the support base 52 . First, the support base 52 is box-shaped with an open bottom, and has a top plate 53, left and right side plates 54A and 54B, a front plate 55, and a rear plate 56. The top plate 53 is rectangular in a plan view, and is bolted to the bottom surface of the arm 15. The left and right side plates 54A and 54B are bent downward from both the left and right ends of the top plate 53. The front plate 55 is bent downward from the front end of the top plate 53. A front cutout 57 is formed at the bottom end of the front plate 55, with the right side being vertically shorter when viewed from the front. The rear plate 56 is bent downward from the rear end of the top plate 53. A rear cutout 58 is formed in the left-right center of the rear plate 56, extending upward from the lower end.

[0016] A support shaft 60 is installed in the left-right direction between the side plates 56A, 56B in the support base 52. A pair of torsion springs 61, 61 are fitted to both left and right ends of the support shaft 60. An upper end 62 of each torsion spring 61 abuts against the top plate 53, and a lower end 63 is held between the front cover 40 and the lower plate portion 42 of the regulating plate 41. Thus, the operation plates 36A, 36B are biased to an inner position where the upper plate portion 44 of the regulating plate 41 abuts against the rear plate 56 of the support base 52 from the front. A locking recess 64 is formed in the upper plate portion 44 in the left-right direction in front of the rear cutout portion 58 of the rear plate 56. A lever pressing spring 65 is provided between the torsion springs 61, 61 in the middle of the support shaft 60. The upper end of the lever pressing spring 65 abuts against the top plate 53, and the lower end abuts against the upper surface of the front end 33 of the lock bar 31. Therefore, the front end 33 is urged downward. The front end 33 of the lock bar 31 passes through a rear cutout 58 of the rear plate 56 and protrudes forward from the upper plate portion 44 of the restricting plate 41. The lower end of the front end 33 is positioned in front of the upper plate portion 44 only when the lid body 17 is in the closed position.

[0017] The lock pin 50 is disposed below and on the front side of the support shaft 60. A guide tube 66 that protrudes to the right is fixed to the inner surface of the left side plate 54A, as shown in Fig. 7. A through hole 67 that is concentric with the guide tube 66 is formed in the side plate 54A. A receiving tube 68 that is coaxial with and faces the guide tube 66 and has an open left end is fixed to the right side plate 54B. The lock pin 50 is inserted into the guide tube 66 and the receiving tube 68 while passing through the through hole 67, and is held so as to be slidable in the left-right direction and rotatable. A flange 69 is formed on the lock pin 50 to the right of the guide tube 66. A chamfered portion 70 is formed on the lock pin 50 to the left of the flange 69, as shown in Fig. 6A. A locking hole 71 is formed in the left operation plate 36A, located to the left of the lock pin 50, with which the left end of the lock pin 50 can be locked. Therefore, the lock pin 50 is maintained slidably between a left slide position in which it protrudes leftward from the through hole 67 and its tip engages with the locking hole 71, and a right slide position in which it slides rightward from the left slide position and its tip disengages from the locking hole 71.

[0018] The interlocking mechanism 51 includes a coil spring 75 , an interlocking body 76 , and a wire 77 . The coil spring 75 is fitted around the lock pin 50 on the right side of the flange 69. The coil spring 75 is compressed between the receiving tube 68 and the flange 69, and one end of the coil spring 75 is engaged with the receiving tube 68 and the other end with the flange 69. Therefore, the lock pin 50 is biased toward the left sliding position. The interlocking body 76 is fixed to the chamfered portion 70 of the lock pin 50. The interlocking body 76 is U-shaped in a side view and has a base end portion 78, a front plate portion 79 rising upward from the front end of the base end portion 78, and a rear plate portion 80 rising upward from the rear end of the base end portion 78. The rear plate portion 80 is formed to be longer in the vertical direction than the front plate portion 79. A grip ball 81 is fixed to the front surface of the front plate portion 79. The interlocking body 76 straddles the front plate 55 from below so that, with the rear plate portion 80 fixed to the chamfered portion 70 and the lock pin 50 twisted in the counterclockwise direction toward the left, the front plate portion 79 is located in front of the front plate 55 of the support base 52 and the rear plate portion 80 is located in the rear of the front plate 55. Therefore, the lock pin 50 is urged to rotate in the clockwise direction toward the left, and the interlocking body 76 is always in contact with the lower end of the front plate 55.

[0019] When the lock pin 50 is in the right sliding position, the rear plate portion 80 of the interlocking body 76 is located at a position away from the guide tube 66 to the right, and when the lock pin 50 is in the left sliding position, the rear plate portion 80 abuts against the guide tube 66. When the lock pin 50 is in this right sliding position, the rotational bias of the lock pin 50 by the coil spring 75 causes the interlocking body 76 to assume a rearward tilting posture in which the front plate 55 abuts between the base end portion 78 and the rear plate portion 80, as shown in Figures 6A and 7A. Therefore, the upward-facing base end portion 78 engages with the left end of the front cutout portion 57 of the front plate 55. Therefore, the lock pin 50 is restricted from protruding to the left while remaining in the right sliding position. The wire 77 connects between the left side surface of the front end 33 of the lock bar 31 and the underside of the base end 78 of the interlocking body 76. The wire 77 rises from the left side surface of the front end 33, wraps around the upper side of the support shaft 60, and descends to be connected to the base end 78. When the lock bar 31 is in the upper limit position together with the lid main body 17, the wire 77 holds the lock pin 50 in the right sliding position and allows the interlocking body 76 to be in a rearward tilted position. When the lock bar 31 moves from here to the closed position together with the lid body 17, the base end 78 is pulled rearward and upward via the wire 77. Then, the interlocking body 76 is pulled until it assumes a forward tilted position in which the upper end of the rear plate portion 80 abuts against the front plate 55, as shown in Figures 6B and 7B. Therefore, the engagement of the base end 78 with the left end of the front cutout portion 57 is released, and the lock pin 50 slides to the left sliding position due to the bias of the coil spring 75.

[0020] In the pressure fryer 1 configured as described above, when performing pressurized cooking, the cooking oil in the oil vat 6 is heated to the cooking temperature by the pulse burner, the food to be cooked is placed inside, and the lid 8 is closed. That is, when the gripping rod 38 is grasped from the front side of the housing 2 and the arm 15 is rotated toward the user while the operating part 35 is swung outward, the lid body 17 also rotates forward and moves to above the opening 7 of the oil vat 6. Thereafter, when the operating portion 35 is pushed into the inner position, the locking rod 39 is locked in the receiving grooves 46, 46 of the locking plates 45, 45, and the lid body 8 is held in the laid-down position in which the oil tank 6 is closed. From this point, the handle 28 is rotated clockwise to rotate the handle shaft 16 in the direction in which it is screwed into the female thread portion 19. This causes the lid body 17 to move downward in parallel, so that the entire circumference of the packing 30 simultaneously comes into contact with and is pressed against the opening 7, sealing the oil tank 6.

[0021] When the lid body 17 is in the closed position, the locking protrusion 34 of the lock bar 31, which has been lowered at the same time, is located in front of the upper plate portion 44 of the restricting plate 41. Therefore, when an attempt is made to pull out the operating part 35 towards the user, the locking protrusion 34 engages with the locking recess 64 of the upper plate portion 44, restricting further pulling out. As the lock bar 31 descends to the closed position, the interlocking mechanism 51 shifts the interlocking body 76, whose base end 78 is pulled via the wire 77, to a forward tilted position. Thus, as described above, the base end 78 of the interlocking body 76 is disengaged from the left end of the front cutout 57 of the front plate 55. Then, the lock pin 50, urged by the coil spring 75, moves the base end 78 to the left slide position while sliding along the left lower end of the front plate 55, and the tip is locked in the locking hole 71 of the operation plate 36A. Thus, the operation unit 35 is also restricted from being pulled out toward the user. At this time, the grip 81 descends together with the front plate portion 79 of the interlocking body 76 and moves laterally to the left lower portion of the front plate 55, so that the operator can visually recognize that the operation unit 35 has been locked and that the lid body 17 has reached the closed position, which serves as a guide for stopping the operation of the handle 28. Furthermore, since a sound is generated when the interlocking body 76 hits the guide tube 66, the operator can also recognize from this sound that the operating portion 35 has been locked and that the lid body 17 has reached the closed position. In this manner, the lock bar 31 is engaged with the regulating plate 41 and the lock pin 50 is engaged with the operating plate 36A, thereby locking the opening of the lid 8.

[0022] When pressure cooking is finished, the operator rotates the handle 28 in the reverse direction to screw the handle shaft 16 upward and move the lid body 17 to the upper limit position. When the lid body 17 moves to the upper limit position, the engaging protrusion 34 of the lock bar 31, which has risen at the same time, moves upward away from the front side of the upper plate portion 44 of the restricting plate 41. Next, the operator grasps the grip 81 and slides the interlocking body 76 to the right, engaging the base end 78 with the left end of the front notch 57 of the front plate 55. Then, the lock pin 50 moves to the right slide position and releases the engagement with the engagement hole 71 of the operation plate 36A, and the rotational bias maintains the engagement state of the base end 78 with the left end of the front notch 57. Thus, the operator grasps the grip rod 38 and pulls the operation part 35 toward himself to remove the engagement rod 39 from the engagement plates 45, 45. If the arm 15 is then rotated upward, the lid body 17 also rotates upward, and the lid body 8 moves to the standing position to open the oil tank 6.

[0023] In this way, the pressure fryer 1 of the above embodiment relating to the disclosure of the second locking member and the interlocking mechanism is supported by the housing 2, has an open top, includes an oil vat 6 for storing cooking oil, a pulse burner for heating the cooking oil in the oil vat 6, and is connected to a horizontal rotating shaft 22 installed on the housing 2 behind the oil vat 6. The pressure fryer 1 can rotate between a lying-down position in which it crosses above the opening 7 in the front-rear direction and an upright position in which it retreats rearward from above the opening 7. The pressure fryer 1 has a locking mechanism provided on the oil vat 6 at its front end when in the lying-down position. The device comprises an arm 15 having an operating portion 35 that can be engaged with a plate 45 (an example of an engaging portion), a handle shaft 16 that penetrates the arm 15 perpendicularly and screws into a female threaded portion 19 inside the arm 15, and has a handle 28 at its upper end that is above the arm 15 in the collapsed position, and a lid body 17 that is connected to the lower end of the handle shaft 16 that is below the arm 15 in the collapsed position, and that moves down together with the handle shaft 16 as the handle 28 screws the handle shaft 16 and is pressed against the opening 7. The lid body 17 is integrally provided with a lock bar 31 (an example of a first locking member) which engages with the operating part 35 engaged with the locking plate 45 in the blocking position in which the lid body 17 is pressed against the opening 7, thereby restricting operation of the operating part 35, and which releases the engagement with the operating part 35 in the non-blocking position in which the lid body 17 is moved upward away from the opening 7, thereby allowing operation of the operating part 35. The arm 15 is provided with a lock pin 50 (an example of a second locking member) that can move between a locked position where it engages with the operating part 35 engaged with the engaging plate 45 in the closed position of the lid body 17, thereby restricting operation of the operating part 35, and an unlocked position where it releases the engagement with the operating part 35 and allows operation of the operating part 35, and that can be held in the unlocked position in the non-blocked position of the lid body 17, and a linkage mechanism 51 that moves the lock pin 50 from the unlocked position to the locked position in conjunction with the descent of the lock bar 31 to the closed position.

[0024] With this configuration, even if the handle shaft 16 or the female screw portion 19 in the arm 15 becomes damaged or worn, causing the lid body 17 to be loosely held in the closed position and causing the lock bar 31 and the operating part 35 to become insufficiently engaged, the lock pin 50 provided on the arm 15 can reliably regulate the operation of the operating part 35 during pressure cooking.

[0025] In particular, the operating unit 35 includes a pair of left and right operating plates 36A, 36B, a locking rod 39 (an example of a locking member) provided between the operating plates 36A, 36B and capable of engaging with a locking plate 45, and a gripping rod 38 (an example of a gripping member) provided between the operating plates 36A, 36B, and when the lid body 17 is in the closed position, the locking rod 39 is engaged with and disengaged from the locking plate 45 by swinging the operating unit 35 back and forth using the gripping rod 38, and the locking pin 50 can be manually slid from a locked position where it engages with the left operating plate 36A and restricts operation of the operating unit 35, to an unlocked position where it is released from the engagement with the operating plate 36A and allows operation of the operating unit 35. The interlocking mechanism 51 includes a coil spring 75 (an example of a biasing means) that biases the lock pin 50 toward the locked position, an interlocking body 76 that slides integrally with the lock pin 50, a front plate 55 (an example of a stopper) of the support base 52 with which the interlocking body 76 can be engaged when the lock pin 50 is in the unlocked position, and a wire 77 (an example of a connecting member) that connects the lock bar 31 and the interlocking body 76. When the lock pin 50 is in the unlocked position, the interlocking body 76 takes a rearward leaning position (an example of a first position) in which it engages with the front plate 55 and holds the lock pin 50 in the unlocked position, while when the lock bar 31 is in the closed position, the interlocking body 76 takes a forward leaning position (an example of a second position) in which it is released from the engagement with the front plate 55, and the coil spring 75 slides the lock pin 50 to the locked position. Therefore, as the lock bar 31 descends to the closed position, the lock pin 50 can be reliably locked to the operation plate 36A, thereby restricting operation of the operation part 35.

[0026] The interlocking body 76 has a different vertical height in the backward tilted position and the forward tilted position, and a grip 81 (an example of an identification member) is provided on the front surface of the interlocking body 76. Therefore, when an operator operates the handle 28 to close the oil tank 6 with the lid body 17, the operator can easily identify that the lid body 17 is in the closed position, and can reliably prevent any unnecessary operation of the handle 28 thereafter.

[0027] The disclosure relating to the second locking member and the interlocking mechanism may be modified as follows. In the above embodiment, the lock pin is engaged with the left-side operating plate in the left sliding position to lock the operation of the operating unit, but the lock pin and interlocking mechanism may be reversed left and right, and the lock pin may be engaged with an engagement hole provided on the right-side operating plate in the right sliding position to lock the operation of the operating unit. In the above embodiment, the interlocking body is engaged with the front notch provided in the front plate of the support base, but it is also possible to provide a slit rather than a notch in the front plate through which the interlocking body passes and to engage the interlocking body with a step provided in the slit. The biasing means may be an elastic body other than a coil spring. The stopper does not have to be the front plate of the support base, and a separate member acting as the stopper may be provided on the arm. In the above embodiment, the interlocking body is located on the upper side in the unlocked position and on the lower side in the locked position, but this may be reversed so that the interlocking body is located on the lower side in the unlocked position and on the upper side in the locked position. The connecting member is not limited to a wire, and may be a linear member such as a rope or a chain. The connecting member may be formed by connecting a plurality of links. The interlocking body does not have to be U-shaped. A protrusion may be integrally provided on the locking member to serve as the interlocking body, and the interlocking body may be engaged with the stopper. The second locking member does not have to be pin-shaped. The second locking member may be plate-shaped. The shape of the first locking member and the structure for engaging and disengaging with the operating portion can also be modified as appropriate. The identification member may be in a shape other than a knob. The identification member may be omitted and the interlocking body itself may be colored to make it easier to identify.

[0028] The pressure fryer 1 of the above-mentioned form relating to the disclosure of the identification means includes an oil vat 6 supported by a housing 2, an open top, and for storing cooking oil, a pulse burner for heating the cooking oil in the oil vat 6, an arm 15 connected to a horizontal rotating shaft 22 installed in the housing 2 behind the oil vat 6, and rotatable between a lying-down position in which it crosses in the front-rear direction above the opening 7 and an upright position in which it retreats rearward from above the opening 7, and equipped at its front end with an operating part 35 that can be engaged with a locking plate 45 (an example of a locking part) provided on the oil vat 6 in the lying-down position, a handle shaft 16 that penetrates the arm 15 perpendicularly and screws into a female screw part 19 inside the arm 15, and equipped with a handle 28 at its upper end that is on the upper side of the arm 15 in the lying-down position, and a lid body 17 that is connected to the lower end of the handle shaft 16 that is on the lower side of the arm 15 in the lying-down position, and that is lowered together with the handle shaft 16 by the screw feed of the handle shaft 16 by the handle 28 and pressed against the opening 7. A knob 81 and a wire 77 (an example of an identifying means) are provided to enable identification of whether or not the lid body 17 is in the closed position where it is pressed against the opening 7. According to this configuration, it is possible to easily identify that the lid body 17 is in the closed position by the knob 81. Therefore, unnecessary operation of the handle 28 can be reliably prevented.

[0029] In particular, the identification means includes a knob 81 (an example of an identification member) supported on a support base 52 (an example of a support member) provided on the arm 15 so as to be movable up and down on the front surface of the arm 15 when the arm 15 is in the collapsed position, and a wire 77 (an example of a connecting member) that connects the lid body 17 and the knob 81 via a linking body 76. The knob 81 is linked to the up and down movement of the lid body 17 via the wire 77, and is held in the front cutout 57 (an example of a predetermined first height) of the front plate 55 in the non-blocking position where the lid body 17 is not pressed against the opening 7, and moves to the lower left side of the front plate 55 (an example of a predetermined second height), which is in a different up-down position from the front cutout 57, in the blocking position of the lid body 17. Therefore, the operator can more easily recognize that the lid body 17 is in the closed position by the downward movement of the grip 81.

[0030] The grip ball 81 is supported on the front surface of the support base 52 so that it can move left and right, and when the lid body 17 is in the closed position, it moves to the lower left side of the front plate 55 (an example of a predetermined left and right position) which is in a different left and right position from the front cutout portion 57 of the front plate 55. Therefore, the operator can more easily recognize that the lid body 17 is in the closed position by the downward and left-right movement of the grip 81.

[0031] The support base 52 is provided with a lock pin 50 (an example of a locking member) that can be manually slid left and right from a locked position where the operation of the operation unit 35 is restricted by engaging with the operation unit 35 engaged with the engaging plate 45 in the closed position of the lid body 17 to an unlocked position where the operation of the operation unit 35 is permitted by releasing the engagement with the operation unit 35, a coil spring 75 (an example of an urging means) that urges the lock pin 50 to the locked position, an interlocking body 76 that slides integrally with the lock pin 50 on the front surface of the support base 52, and the interlocking body 76 is engaged with the lock pin 50 when the lock pin 50 is in the unlocked position. An engageable front plate 55 (an example of a stopper) is provided, a grip ball 81 is provided on the interlocking body 76, and a wire 77 is connected to the interlocking body 76. When the lock pin 50 is in the unlocked position, the interlocking body 76 engages with the front plate 55 at the front cutout portion 57 to hold the lock pin 50 in the unlocked position, while when the lid body 17 is in the closed position, the interlocking body 76 moves to the lower left side of the front plate 55 where it is released from the engagement with the front plate 55, and the coil spring 75 slides the lock pin 50 to the locked position, moving the grip ball 81 to the lower left side of the front plate 55. Therefore, by utilizing the sliding of the lock pin 50 that locks the operation of the operating portion 35 in the closed position, the grip ball 81 can be easily moved up and down and left and right. The interlocking body 76 abuts against the guide tube 66 of the support base 52 in the locked position. Therefore, when the interlocking body 76 abuts against the guide tube 66, a sound is generated, and this sound also enables the operator to recognize that the lid main body 17 has reached the closed position.

[0032] The following modifications are possible to the disclosure of the identification means: The identification member may have a shape other than a knob. The knob may be omitted and the interlocking body itself may be colored to serve as the identification member. The interlocking body does not have to be U-shaped. A protrusion integrally formed on the locking member may be engaged with the front notch of the front plate. In this case, the protrusion may be colored to make it easier to recognize. Also, the locking pin itself may be colored so that it can be recognized through a window in the front plate, and the closed position may be recognized by the movement or color change of the colored portion. The locking member is not limited to a pin shape and may be plate-shaped, etc. In the above embodiment, the lock bar is provided on the lid body, but the lock bar may be omitted. In this case, the connecting member may be directly connected to the lid body. The connecting member is not limited to a wire, and may be a linear member such as a rope or a chain. The connecting member may be formed by connecting a plurality of links. In the above embodiment, the locking member is used to form the identification means, but the closed position may be identified independently in conjunction with the vertical movement of the lid body without the locking member. For example, it is conceivable to provide an identification member that can move up and down on the front surface of the arm in the collapsed position, connect the identification member to the lid body via a connecting member, and change the vertical height when the lid body is in the closed position.

[0033] Other configurations of the pressure fryer can also be modified as appropriate. For example, the heating means is not limited to the pulse combustor, and can be replaced with or used in combination with a burner, heater, etc. The handle at the upper end of the handle shaft can also be Y-shaped, straight, or ring-shaped when viewed from above. The disclosures can also be adopted in a pressure fryer in which a pair of oil tanks are arranged side by side, not just one. [Explanation of symbols]

[0034] 1 pressure fryer, 2 housing, 3 frame, 4 panel, 6 oil tank, 7 opening, 8 lid body, 10 fry controller, 15 arm, 16 handle shaft, 17 lid body, 19 female threaded portion, 22 rotating shaft, 31 lock bar, 33 front end portion, 34 locking protrusion, 35 operation portion, 36A, 36B operation plate , 37 ·· connecting shaft, 38 ·· gripping rod, 39 ·· locking rod, 41 ·· restricting plate, 45 ·· locking plate, 50 ·· lock pin, 51 ·· interlocking mechanism, 52 ·· support base, 55 ·· front plate, 57 ·· front cutout portion, 60 ·· support shaft, 71 ·· locking hole, 75 ·· coil spring, 76 ·· interlocking body, 77 ·· wire, 78 ·· base end portion, 79 ·· front plate portion, 80 ·· rear plate portion, 81 ·· grip ball.

Claims

1. an oil tank supported by the housing, having an open top, and configured to contain cooking oil; A heating means for heating the cooking oil in the oil tank; an arm connected to a horizontal rotating shaft installed on the housing behind the oil vat and rotatable between a laid-down position in which it crosses above the opening in the front-rear direction and an upright position in which it retreats rearward from above the opening, the arm having an operating part at its front end that can be engaged with an engaging part provided on the oil vat when in the laid-down position; a handle shaft that penetrates the arm perpendicularly and screws into a female screw portion inside the arm, and has a handle at an upper end that is on the upper side of the arm in the laid-down position; A lid body connected to a lower end of the handle shaft that is a lower side of the arm in the collapsed position, and lowered together with the handle shaft by the screw feed of the handle shaft by the handle and pressed against the opening. A pressure fryer comprising an identification means for identifying whether the lid body is in a closed position pressed against the opening.

2. the identification means includes an identification member supported on a support member provided on the arm so as to be movable up and down on a front surface of the arm when the arm is in a laid-down position, and a connecting member connecting the lid body and the identification member, The pressure fryer described in claim 1, characterized in that the identification member is linked to the up and down movement of the lid body via the connecting member, and is maintained at a predetermined first height when the lid body is in an unblocked position where it is not pressed against the opening, and moves to a predetermined second height that is different in vertical position from the first height when the lid body is in the blocked position.

3. The pressure fryer described in claim 2, characterized in that the identification member is supported on the front surface of the support member so as to be movable in the left-right direction, and when the lid body is in the closed position, the identification member moves to a predetermined left-right position at the second height and a left-right position different from the first height.

4. The support member includes: a locking member that can be manually slid in the left-right direction from a locked position where the locking member engages with the operating unit that is engaged with the engaging portion at the closed position of the lid body to restrict operation of the operating unit to an unlocked position where the locking member is released from the operating unit to allow operation of the operating unit; a biasing means for biasing the locking member toward the locking position; a linking body that slides integrally with the locking member on the front surface of the support member; a stopper capable of locking the interlocking body when the locking member is at the unlocked position is provided, the identification member is provided on the interlocking body, and the connecting member is connected to the interlocking body, 4. The pressure fryer according to claim 3, wherein when the locking member is in the unlocked position, the interlocking body engages with the stopper at the first height to hold the locking member in the unlocked position, while when the lid body is in the closed position, the interlocking body moves to the second height at which the interlocking body is released from the engagement with the stopper, and the biasing means slides the locking member to the locked position and moves the identification member to the left or right position.

5. The pressure fryer of claim 4, wherein the interlocking body abuts the support member in the locked position.

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