Refrigerator box

Abstract

The present invention provides a refrigerating box. One of a main body portion (2) and a lid portion (3) has a engaged portion (22), and the other of the main body portion (2) and the lid portion (3) has: an operating portion (31) which is operated from the outside; a moving portion (322) which moves to two positions, i.e., an unlocking position and a locking position; a restricting portion (33) which prevents the moving portion (322) from moving to the locking position by contacting the moving portion (322), and allows the moving portion (322) to move to the locking position when the operating portion (31) is operated; and a locking mechanism portion (34) which holds the lid portion (3) in a closed state by engaging with the engaged portion (22). Accordingly, a refrigerating box is provided which can improve the usability of the locking device.

Description

Technical Field

[0001] The present invention relates to a cooler box. Background Art

[0002] As a cooler box for storing fish and the like, there is, for example, a cooler box described in Patent Document 1. This cooler box (the "cold insulation box" in Patent Document 1) has a box main body and a lid for opening and closing, and also has a locking device (the "opening and closing device" in Patent Document 1) for holding the lid in a closed state.

[0003] [Prior Art Documents]

[0004] [Patent Documents]

[0005] Patent Document 1: Japanese Patent Grant Gazette No. 4963258 Summary of the Invention

[0006] [Technical Problems to be Solved by the Invention]

[0007] In such a cooler box, since the locking device sometimes operates unexpectedly and locks, resulting in the lid being in a state where it cannot be opened, there is still room for improvement in terms of ease of use.

[0008] Therefore, an object of the present invention is to provide a cooler box that can improve the ease of use of the locking device.

[0009] [Technical Solutions for Solving the Technical Problems]

[0010] The present invention is a cooler box having a main body portion and a lid portion. Among them, the main body portion has an opening portion and can store and hold objects to be stored inside; the lid portion moves relative to the main body portion to open and close the opening portion. One of the main body portion and the lid portion has a portion to be engaged, and the other of the main body portion and the lid portion has an operating portion, a moving portion, a restricting portion, and a locking mechanism portion. Among them, the operating portion is operated from the outside; the moving portion moves to two positions, an unlocking position and a locking position; the restricting portion prevents the moving portion from moving to the locking position by contacting the moving portion, and allows the moving portion to move to the locking position when the operating portion is operated; the locking mechanism portion can move relative to the portion to be engaged, and is engaged with the portion to be engaged by the moving portion moving to the locking position, thereby holding the lid portion in a closed state.

[0011] According to this structure, even if an external force other than operating the operating portion, which is unexpected by the user, is applied to the operating portion, since the moving portion is held at the unlocking position by the restricting portion, the locking mechanism portion does not operate.

[0012] Further, it may be configured such that there is a biasing portion that biases the moving portion toward the unlocking position.

[0013] According to this structure, the moving portion can be held at the unlocking position by the biasing portion.

[0014] Further, it may be configured such that the restricting portion has a step, and the moving portion contacts the step at the unlocking position to prevent accidental movement from the unlocking position to the locking position, and is operated by the operating portion to move over the step toward the locking position.

[0015] According to this structure, the restricting portion can have a simple structure by utilizing the step.

[0016] Further, it may be configured such that the main body portion has the engaged portion, the lid portion has the operating portion, the moving portion, the restricting portion, and the locking mechanism portion, the operating portion has an action starting portion that receives an external force generated by the operation and serves as a starting point of the force that causes the locking mechanism portion to act, the action starting portion is rotatably supported to be linked with the locking mechanism portion, the action starting portion is provided at an outer position of the lid portion, the moving portion is provided at an inner position of the lid portion, in the operating portion, a gripping portion that is a portion where the user grips to input the external force is provided at a position more outside the lid portion than the action starting portion, and the distance from the gripping portion to the moving portion is longer than the distance from the action starting portion to the moving portion.

[0017] According to this structure, based on the lever principle, the force applied to the gripping portion for operating the locking mechanism portion can be made a smaller force.

[0018] [Advantages of the Invention]

[0019] According to the present invention, even if an external force other than the operation is applied to the operating portion, the locking mechanism portion does not act. Therefore, the usability of the locking device can be improved. [Brief Description of the Drawings]

[0020] Figure 1 A perspective view showing a state where the lid portion is not opened (the operating handle is in the locked state) in a refrigerator according to an embodiment of the present invention.

[0021] Figure 2 A main part enlarged perspective view showing around the operating handle of the refrigerator and the operating handle being in the unlocked state.

[0022] Figure 3 Showing in the locking device of the refrigerator, after pulling out a set of locking devices provided on the Figure 1 left side as shown.

[0023] Figure 4 It is a longitudinal sectional view of the main part at the center in the long side direction of the cooler, and shows a state where the locking mechanism part does not operate even when an external force is applied to the operating handle (unlocked state).

[0024] Figure 5 It is a longitudinal sectional view of the main part at the center in the long side direction of the cooler, and shows a state where the locking mechanism part operates by the operation of the user on the operating handle.

[0025] [Explanation of reference numerals]

[0026] 1: Cooler; 2: Main body part; 3: Lid part; 3A: Lid part main body; 21: Opening part; 22: Fixed shaft (engaged part); 31: Operating handle (operating part); 311: Operating handle support shaft (action starting point part); 312: Gripping part; 321: Operating handle extension part; 322: Moving part; 323: Biasing part; 331: Step; 3311: Wall part; 34: Locking mechanism part; 341: Locking member; 342: Rotation shaft; 343: Connecting part; 344: Rotation branch part; 345: Leaf spring; 346: Through hole; 35: Fixed protrusion; L: Locking device. Detailed implementation mode

[0027] Next, an implementation mode is cited to explain the present invention. Figure 1 Shows the shape of the cooler 1 of the present implementation mode. However, in Figure 1 , only the outline of the appearance of the main body part 2 is shown by a double-dashed line. In addition, in the expressions described below, "up and down", "high and low", "horizontal" correspond to Figures 1 to 5 the illustrated state. For "inside and outside", the direction of the central part when observing the lid part 3 shown in a top view is taken as the inside, and the direction of the edge when observing the lid part 3 in a top view is taken as the outside. In Figure 1 and Figure 4 and Figure 5 , the right side in the illustration is the inside, and the left side in the illustration is the outside.

[0028] Basically the same as the cooler of the prior art, the cooler 1 of the present implementation mode has a main body part 2 and a lid part 3. Among them, the main body part 2 has an opening part 21 that opens upward, and can store and hold stored items such as fish inside; the lid part 3 moves relative to the main body part 2 to open and close the opening part 21. And, as Figure 3 shown, a locking device L is provided across the main body part 2 and the lid part 3, and this locking device L is used to hold the lid part 3 in a closed state (a state where it is not opened). As Figures 3 to 5As shown, the locking device L is composed of an engaged portion 22 provided on the main body portion 2, an operation handle 31 provided on the lid portion 3, an unlocking holding portion 32, a restricting portion 33, and a locking mechanism portion 34. The refrigerator 1 has two sets of locking devices L, L, and one set is provided on each of the two long sides of the main body portion 2 and the lid portion 3. In Figure 3 one of them, a set of locking devices L provided on the left long side in Figure 1 is pulled out and shown.

[0029] The main body portion 2 has a fixed shaft 22 as the engaged portion (refer to Figures 3 to 5 ). The fixed shaft 22 is a part of the metal part shown in Figure 3 . The metal part is fixed to the wall surface of the main body portion 2 by means of screw fastening or the like, whereby the fixed shaft 22 is fixedly provided on the main body portion 2. In the main body portion 2 of the present embodiment, the fixed shafts 22 are respectively arranged along the two long sides of the opening portion 21 of the main body portion 2 with their axes extending in the horizontal direction. For example, on each long side of the main body portion 2, two fixed shafts 22 are provided at positions symmetric with respect to the center in the long side direction. The fixed shaft 22 is disposed outside the opening portion 21. The fixed shaft 22 of the present embodiment is, for example, a circular straight rod in cross-sectional shape.

[0030] The lid portion 3 has a lid main body 3A, an operation handle 31, and a locking mechanism portion 34 (refer to Figure 3 ), wherein the lid main body 3A covers the opening portion 21; the operation handle 31 serves as an operation portion for a user to operate from the outside of the refrigerator 1; and the locking mechanism portion 34 is linked with the operation handle 31. In terms of the relationship with the lid main body 3A, as shown in Figure 1 and Figure 5 , the state where the operation handle 31 is laid down is the locked state, and as shown in Figure 2 and Figure 4 , the state where a part of the operation handle 31 protrudes upward is the unlocked state.

[0031] In the present embodiment, the lid portion 3 is set to be "double-opening". The movement of the lid portion 3 relative to the main body portion 2 can be, for example, a movement in such a manner that it moves upward above the opening portion 21 in a substantially parallel state, so that the entire lid portion 3 is separated from the main body portion 2. In addition, the movement of the lid portion 3 relative to the main body portion 2 can also be a movement in such a manner that by setting one of the operation handles 31 described later to the locked state and the other to the unlocked state, a set of locking devices L provided on one of the two long sides that are parallel in the shape viewed from above functions as a hinge, and on the other long side, the lid portion 3 is lifted to rotate the lid portion 3. Through this movement, the lid portion 3 can be in a closed state and an open state.

[0032] As shown in Figure 1As shown, the operating handle 31 is provided at the center in the longitudinal direction of both end portions of the lid portion 3 having a long side. In addition, a part of the operating handle 31 can move in the vertical direction. Specifically, as Figure 1 , Figure 2 , Figure 4 , Figure 5 shown, the outer portion (the gripping portion 312) of the operating handle 31 is provided on the lid portion main body 3A so as to move in the vertical direction with respect to the lid portion main body 3A.

[0033] The operating handle 31 has a gripping portion 312 which is a portion for inputting an external force for operating the operating handle 31 by a user hooking and gripping with a finger. The gripping portion 312 is formed in a plate shape and protrudes outward, and the user's finger is hooked on the lower surface. The gripping portion 312 of the present embodiment is provided on the outside of the operating handle 31 so that the user can insert the hand from the outside to the inside of the gripping portion 312. By such a setting, compared with the case where the gripping portion 312 is provided inside the operating handle 31, the space required for providing the operating handle 31 in the lid portion 3 can be reduced, and accordingly, the volume of the heat insulating material that can be arranged inside the lid portion 3 can be increased. In addition, since the operating handle 31 can be made closer to the outside of the lid portion 3, the step formed on the lid portion 3 can be reduced, and thus the discomfort brought to the user when the user sits on the cooler 1 can be reduced. In addition, the user can also operate the operating handle 31 from the side of the cooler 1.

[0034] When the gripping portion 312 on the operating handle 31 is not operated by the user (intentional operation by the user), the gripping portion 312 is elastically biased (elastically biased) obliquely upward with respect to the lid portion main body 3A by the elastic force of the biasing portion 323 (refer to Figure 4 and Figure 5 ) which is a tension spring. By biasing the biasing portion 323 in the stretching direction, the operating handle 31 is held in the unlocked state. When the operating handle 31 is operated by the user (for example, when the user presses down the gripping portion 312 of the operating handle 31 with a force sufficient for the moving portion 322 to cross the step 331 of the restricting portion 33), the operating handle 31 rotates about the axis of the rotation axis of the operating handle 31 with respect to the lid portion main body 3A, that is, the axis of the operating handle support shaft 311. The operating handle 31 and the locking mechanism portion 34 are physically connected as Figure 3 shown and move integrally by the operation of the operating handle 31. Therefore, when the operating handle 31 is moved, the displacement is transmitted to the locking mechanism portion 34 via the operating handle support shaft 311, and accordingly, the locking member 341 is interlocked (rotated).

[0035] The operating handle support shaft 311 has a circular straight rod-shaped cross-sectional shape and is provided such that the axis extends in the horizontal direction along two long sides in the lid portion 3 ( Figure 3is shown along a long side (the operating handle support shaft). The operating handle support shaft 311 is rotatably supported so as to be linked with the locking mechanism portion 34. In the present embodiment, the operating handle support shaft 311 is supported so as to be rotatable through the rotating shaft 342. That is, as Figure 4 and Figure 5 shown, the axis of the operating handle support shaft 311 is not fixed in the locking device L, but rotates around the rotating shaft 342. However, this rotation is restricted by the moving portion 322 and the restricting portion 33. The operating handle support shaft 311 functions as an action starting point portion that receives an external force generated by a user's operation of the operating handle 31 and becomes the starting point of the force that causes the locking mechanism portion 34 to act. This function will be described later.

[0036] As Figure 3 shown, an unlocking holding portion 32 is connected to the operating handle 31. The unlocking holding portion 32 has an operating handle extension portion 321 and a moving portion 322. The operating handle extension portion 321 is two branched portions that extend from both ends in the long side direction of the operating handle 31 to the inside of the cover portion 3. The moving portion 322 has a circular straight rod shape in cross section, and both ends thereof are supported by the operating handle extension portions 321, 321. The axis of the moving portion 322 is parallel to the axis of the operating handle support shaft 311.

[0037] The moving portion 322 moves to Figure 4 the unlocking position shown in Figure 5 and the locking position shown in. The moving portion 322 can contact the restricting portion 33 provided below the inside of the operating handle 31 in the cover portion 3, thereby preventing the moving portion 322 from shifting to an unexpected locking position. Specifically, the moving portion 322 separates from or contacts the step 331 of the restricting portion 33 at the unlocking position, and the moving portion 322 moves over the step 331 to the locking position. The moving portion 322 can approach or move away from the operating handle support shaft 311 within a specified range.

[0038] The unlocking holding portion 32 has a biasing portion 323 that biases the moving portion 322 in the direction of the fixed protrusion 35 to hold the moving portion 322 in the unlocking position. The biasing portion 323 of the present embodiment has a spiral tension spring. One end portion of the biasing portion 323 is attached to the moving portion 322, and the other end portion is attached to the fixed protrusion 35 formed on the cover portion 3. In addition, by bringing the moving portion 322 into contact with the restricting portion 33, it is possible to prevent the moving portion 322 from moving over the step 331, thereby holding the moving portion 322 in the unlocking position.

[0039] Above, by combining the moving part 322 and the restricting part 33, it is possible to set a situation where the operating handle 31 and the locking mechanism part 34 are linked (corresponding to the state where the locking mechanism part 34 can operate) and a situation where the two are not linked (corresponding to the state where the locking mechanism part 34 cannot operate).

[0040] Here, a structure for reducing the operating force of the operating handle 31 (the gripping part 312) in the refrigerator 1 of the present embodiment will be described. The operating handle support shaft 311 as the starting point of the movement is provided at an outer position of the lid part 3. The moving part 322 is provided at an inner position of the lid part 3. In addition, the gripping part 312 is provided at a position more outside the lid part 3 than the operating handle support shaft 311. And, as Figure 5 shown, when observed in a longitudinal sectional view, compared with the linear distance L311 from the operating handle support shaft 311 to the moving part 322, the linear distance L312 from the gripping part 312 to the moving part 322 (in the aspect of explanation, the position where the operating force is applied in the gripping part 312 is set as Figure 5 the position of the arrow P3b shown) is set to be longer. Since the distances of each part are set like this, in a lever where the moving part 322 that moves inward over the step 331 of the restricting part 33 and is placed on the restricting part 33 is the fulcrum, and the gripping part 312 where the operating force is applied is the force-receiving point, and the operating handle support shaft 311 rotates relative to the rotation shaft 342, according to the lever principle, compared with a situation where, for example, the gripping part is provided at an inner position in the lid part, the user inserts the hand from the inside to the outside into the gripping part, and it is set so that the gripping part approaches the outer edge of the lid part, the force applied to the gripping part 312 for operating the locking mechanism part 34 can be made a smaller force.

[0041] Regarding the restricting part 33, the moving part 322 is held in the unlocked position by contacting it, and when the operating handle 31 is operated, the restricting part 33 allows the moving part 322 to cross the step 331, so that the moving part 322 moves to the locked position.

[0042] The restricting part 33 has a step 331. The step 331 is Figure 5The shape shown, and the inner side of the lid portion 3 is formed higher than the outer side. By the movement portion 322 located at the unlocking position contacting the wall portion 3311 standing between the lower portion and the higher portion on the step 331, the accidental transfer of the movement portion 322 to the locking position is prevented. In the present embodiment, at this time, the movement portion 322 is biased by the biasing portion 323 to maintain the state of the movement portion 322. The position (unlocking position, locking position) of the movement portion 322 is determined according to whether the movement portion 322 crosses the step 331. Therefore, in the refrigerator 1 of the present embodiment, the local shape of the restricting portion 33, that is, the step 331, is used to prevent the movement of the movement portion 322 to the locking position and to allow the movement of the movement portion 322 to the locking position. Therefore, the restricting portion 33 can have a simple structure.

[0043] For example, as Figure 4 shown by the arrow P3a in, an external force other than the operation (an external force caused by vibrations, impacts, etc. applied to the refrigerator 1 and unrelated to the user's intention) is applied downward to the operation handle 31 without internal or external deviation. The movement portion 322 is biased by the biasing portion 323. However, due to the downward applied force, the movement portion 322 only contacts the step 331 and does not move upward, so it does not cross the step 331. This is because if the movement portion 322 does not move upward, it cannot cross the step 331 due to the wall portion 3311. In this state, since the movement of the movement portion 322 to the locking position is prevented, the operation handle support shaft 311 does not rotate relative to the rotation shaft 342. Therefore, the locking mechanism portion 34 does not operate.

[0044] On the other hand, when the user operates the operation handle 31 (the gripping portion 312), for example, as Figure 5 shown by the arrow P3b in, an operating force as an external force is applied downward to the outer gripping portion 312 of the operation handle 31. This force is transmitted to the operation handle support shaft 311 as the starting point of the action, so that the operation handle support shaft 311 rotates relative to the rotation shaft 342. In parallel with this rotation, during the period until the movement portion 322 crosses the step 331, a lever relationship is temporarily generated with the operation handle support shaft 311 as the fulcrum (however, the support shaft 311 as this fulcrum is not fixed but moves (rotates) relative to the rotation shaft 342 as described above), the gripping portion 312 as the force receiving point, and the movement portion 322 as the acting point. As a result, the movement portion 322 rises ( Figure 5The counterclockwise arrow M322 related to the movement of the moving part 322 shown around the operating handle support shaft 311. The moving part 322 rises to a position above the wall part 3311 on the step 331. During this ascent, the moving part 322 may or may not contact the wall part 3311. When the moving part 322 rises, since the wall part 3311 is not located inside the moving part 322, the moving part 322 moves inward above the restricting part 33. As Figure 5 shown, as the moving part 322 moves inward, the tension spring serving as the biasing part 323 elongates. This is the state after crossing the step 331. In this way, since the rotation of the operating handle support shaft 311 relative to the rotation shaft 342 cannot be prevented, the operating handle support shaft 311 moves within the movable range until it descends to Figure 5 the position shown, causing the locking mechanism part 34 to act. At this time, the reduction effect of the operating force based on the lever principle is as described above.

[0045] In this way, when the operating handle 31 is not operated from the outside, it is possible to prevent the lid part 3 from being unexpectedly held in the closed state (unable to be opened). Accordingly, for example, since any part of the lid part 3 can be grasped to perform the opening and closing operation of the lid part 3, the operability when using the cooler on a narrow fishing boat can be improved. In addition, when the user successively stores a large number of caught fish, which are the items to be stored, in the cooler 1, even if the operating handle 31 is not operated, the fish can be easily stored by opening and closing the lid part 3.

[0046] The locking mechanism part 34 can move relative to the fixed shaft 22, and by the moving part 322 crossing the step 331 of the restricting part 33 and engaging with the fixed shaft 22, the lid part 3 is held in the closed state.

[0047] The locking mechanism part 34 has a locking member 341 serving as a engaging piece that engages with the fixed shaft 22. In the lid part 3 of the present embodiment, the locking members 341 are provided along two long sides of the lid part 3, respectively. For example, on each long side of the lid part 3, two locking members 341 are provided at positions symmetric with respect to the center in the long side direction. As Figure 4 and Figure 5 shown, each locking member 341 can move (rotate) relative to the fixed shaft 22 of the main body part 2. And each locking member 341 has a claw part 3411 serving as an engaging part that engages with the fixed shaft 22. The claw part 3411 faces one side of the rotation range with respect to the fixed shaft 22. In the present embodiment, the claw part 3411 faces the depth side with respect to the fixed shaft 22 ( Figure 4 and Figure 5 the left side in).

[0048] The two locking members 341, 341 of the locking mechanism portion 34 are connected by a connecting portion 343 to form an integral body. Further, the locking mechanism portion 34 is integrally provided with an L-shaped rotation branch portion 344 which stands upward from the connecting portion 343 and extends inward. There are two rotation branch portions 344 provided with an operation handle 31 interposed therebetween. The operation handle support shaft 311 of the operation handle 31 penetrates and is fixed to the two rotation branch portions 344, 344.

[0049] In addition, the locking member 341 rotates relative to the lid portion main body 3A. The rotation range of the locking member 341 is set to cover from the near front side (see Figure 4 ) when based on the fixed shaft 22 of the main body portion 2 to the position where the claw portion 3411 is aligned with the fixed shaft 22 (see Figure 5 ). In addition, it may also be set to reach the depth side where the claw portion 3411 crosses over the fixed shaft 22. The locking member 341 extends downward when the lid portion 3 is horizontal with respect to the rotation center of the locking member 341, that is, the rotation shaft 342. In addition, the locking member 341 of the present embodiment is formed of, for example, a resin such as polyacetal resin or a material in which glass is mixed in the resin.

[0050] The claw portion 3411 can move relative to the fixed shaft 22 and is engaged with the fixed shaft 22 by an operation from the outside (for example, an operation (intentional operation) of the user on the operation handle 31 from the outside), whereby the lid portion 3 is held in the closed state. In addition, the claw portion 3411 can move between a locked state (see Figure 5 ) in which it is engaged with the fixed shaft 22 and an unlocked state (see Figure 4 ) in which the engagement (engagement with the fixed shaft 22) is released. The claw portion 3411 of the present embodiment can move in a manner approaching the fixed shaft 22 from the side closer to the opening portion 21 (clockwise direction in the drawing). And the claw portion 3411 can be held in the unlocked state when not operated from the outside, and when operated from the outside with a force greater than the elastic force of the leaf spring 345 and thereby applying a force capable of deforming the leaf spring 345 to the leaf spring 345, the claw portion 3411 moves from the unlocked state to the locked state.

[0051] The locking mechanism portion 34 has a leaf spring 345 as an elastic portion that is linked with the claw portion 3411 of the locking member 341 and has an elastic force. The leaf spring 345 is made of an elastic material such as metal or resin. Specifically, the leaf spring 345 is made of stainless steel. A through hole 346 penetrating in the inner and outer directions is provided in the locking member 341. The leaf spring 345 is inserted through the through hole 346. In addition, the formation of the through hole 346 is not essential, and the leaf spring 345 may not penetrate the locking member 341.

[0052] As described above, in the cooler 1 of the present embodiment, the restricting portion 33 can prevent the moving portion 322 from moving to the locked position. Accordingly, even if an external force other than the operation is applied to the operation handle 31, since the moving portion 322 is held at the unlocked position by the restricting portion 33, the locking mechanism portion 34 does not operate. Therefore, the usability of the locking device of the lid portion 3 on the cooler 1 can be improved.

[0053] An embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.

[0054] For example, the lid portion 3 of the above-described embodiment is "double-opening", but in the lid portion 3, it may also be configured as "single-opening" by providing a hinge (for example, a generally circulated hinge) that is different from the set of locking devices L and cannot be separated from the main body portion 2 on one of the two parallel long sides in the shape when viewed from above.

[0055] In addition, in the cooler 1 of the above-described embodiment, the fixed shaft 22 as the engaged portion provided in the main body portion 2 and the locking mechanism portion 34 provided in the lid portion 3 for engaging with the fixed shaft 22 are provided, but conversely, the main body portion 2 may have the locking mechanism portion and the lid portion 3 may have the engaged portion.

[0056] In addition, the operation portion of the above-described embodiment is the operation handle 31 in which the gripping portion 312 can move in the vertical direction, but it may also be a member that can move in a straight line trajectory in the horizontal direction or the vertical direction. In this case, the member corresponding to the moving portion 322 may also move in a straight line trajectory as the operation handle 31 moves. For example, a structure can be considered in which a sliding member corresponding to the operation handle 31 slides relative to the lid main body 3A in the horizontal direction or the like, and accordingly, the force generated by the sliding is transmitted to the locking member 341, so that the locking member 341 moves from the unlocked state to the locked state, and a member corresponding to the restricting portion 33 prevents the member corresponding to the moving portion 322 from moving to the unlocked position by contacting the member corresponding to the moving portion 322, and when the sliding member is operated, the member corresponding to the restricting portion 33 allows the member corresponding to the moving portion 322 to move to the locked position.

[0057] In addition, the lid portion 3 can also be used to replace the lid portion of an existing cooler box and configured to be mounted on the main body portion of the existing cooler box. In the cooler box with the replaced lid portion 3 mounted on the main body portion, similar to the cooler box 1 of the above-described embodiment, when not operated from the outside, the engaging portion (claw portion 3411) is always maintained in a state where the engagement with the engaged portion (fixed shaft 22) is released. Therefore, it is possible to prevent the lid portion 3 from being unexpectedly held in the closed state. Thus, by simply replacing the lid portion of the existing cooler box with the lid portion 3 as described above, the existing cooler box can be improved into a cooler box that further enhances the ease of use.

Claims

1. A refrigerator, characterized in that: The invention comprises a main body and a cover, wherein the main body has an opening and can store objects therein; and the cover moves relative to the main body to open and close the opening. One of the main body and the cover has an engaged portion. The other of the main body and the cover has an operation portion, a moving portion, a restricting portion, and a locking mechanism portion, wherein: The operating part is operated from the outside; The moving portion moves to two positions, an unlocking position and a locking position, in response to an operation of the operating portion; The restricting portion prevents the moving portion from moving from the unlocking position to the locking position by contacting the moving portion, and when the operating portion is operated, the operating force applied to the operating portion causes the moving portion to be out of contact, thereby allowing the moving portion to move to the locking position; The locking mechanism is movable relative to the engaged portion, and the movable portion is moved to the locking position to engage with the engaged portion, thereby maintaining the cover in a closed state. In the unlocked state of the moving portion, the restricting portion maintains a state of contact with the moving portion when the operating portion is not operated.

2. The refrigerator according to claim 1, characterized in that: A biasing portion is provided, which biases the moving portion toward the unlocking position.

3. The refrigerator according to claim 1 or 2, characterized in that: The limiting portion has a step, The moving portion is prevented from accidentally moving from the unlocked position to the locked position by coming into contact with the step at the unlocked position, and moves to the locked position over the step when the operating portion is operated.

4. The refrigerator according to any one of claims 1 to 3, characterized in that: The main body has the engaged portion. The cover portion includes the operating portion, the moving portion, the restricting portion, and the locking mechanism portion. The operation portion has an action starting point portion, which receives an external force generated in association with the operation and serves as a starting point of a force for actuating the locking mechanism portion. The action starting point portion is rotatably supported so as to be linked with the locking mechanism portion. The action starting point is arranged at the outer side of the cover, and the moving part is arranged at the inner side of the cover. In the operation portion, a grip portion, which is a portion where the external force is inputted by the user by gripping, is provided at a position further outside the cover portion than the motion starting point portion. The distance from the holding portion to the moving portion is longer than the distance from the motion starting point to the moving portion.

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