JP7330062B2 - cooler box - Google Patents

Description

The present invention relates to cooler boxes.

BACKGROUND ART For example, Patent Document 1 discloses a cooler box used for housing fish and the like. This cooler box (“insulated box” in Patent Document 1) includes a box body and a lid for opening and closing, and a locking device (“opening and closing device” in Patent Document 1) for keeping the lid closed. It has

Japanese Patent No. 4963258

In such a cooler box, the locking device is activated even though the user does not intend to lock it, and the lid cannot be opened in some cases.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a cooler box with improved usability in terms of a locking device.

The present invention includes a main body portion having an opening and capable of storing a stored object therein, and a lid portion that moves with respect to the main body portion to open and close the opening portion, wherein the main body portion and the lid portion are combined. One of them has an engaged portion, and the other of the main body portion and the lid portion is movable with respect to the engaged portion and engages with the engaged portion by operation from the outside. An engaging portion that holds the lid portion in a closed state and an elastic portion that interlocks with the engaging portion and has an elastic force are provided, and the engaging portion is adapted to the engaged portion. It is movable between a locked state in which the engagement is engaged and an unlocked state in which the engagement is released, and moves from the unlocked state to the locked state when a force capable of deforming the elastic portion is applied. It's a cooler box.

According to this configuration, when a force capable of deforming the elastic portion is applied, the engaging portion is always maintained in a disengaged state with respect to the engaged portion. It is possible to prevent it from being held in a closed state. As a result, for example, the lid can be opened and closed by grasping an arbitrary place on the lid, so that the operability can be improved when the cooler box is used on a narrow fishing boat.

Further, when the engaging portion is operated with a force larger than the elastic force of the elastic portion and a force capable of deforming the elastic portion is applied to the elastic portion, the engaging portion changes from the unlocked state to the locked state. You can move to state.

According to this configuration, when the engaging portion is not operated from the outside, the engaging portion is always maintained in a disengaged state with respect to the engaged portion, so that the lid portion is held in a closed state when the user does not intend to do so. can prevent

The elastic portion includes a contact portion capable of coming into contact with the engaged portion. When the operation is not performed, the contact portion moves the body portion and the lid portion by the elastic force of the elastic portion. may be maintained in contact with a portion of said one of the.

According to this configuration, when the contact portion of the elastic portion is not operated from the outside, the contact portion of the elastic portion is in contact with a part of the main body portion or the lid portion. is maintained in a disengaged state.

When the operation is not performed, the contact portion is kept in contact with the engaged portion due to the elastic force of the elastic portion, and the elastic portion moves toward the unlocked portion from the contact portion. The plate spring includes a convex portion that continues rearward in the direction of movement from the state to the locked state. The engaging portion may move from the unlocked state to the locked state by climbing over the portion.

According to this configuration, when an operation is performed with a force greater than the elastic force, the projecting portion climbs over the engaged portion and the abutting portion moves away from the engaged portion. The lid does not move to the locked state unless the lid is closed.

The body portion includes the engaged portion, and the lid portion interlocks with the engaging portion, the elastic portion, and the engaging portion, and the engaging portion engages the engaged portion. a sandwiching portion disposed at a position sandwiching the engaged portion together with the engaging portion when engaged, wherein the engaged portion is configured by a shaft, and the elastic portion is configured to be the engaging portion and the engaging portion It is elastically deformable so as to change the distance from the clamping portion, and when the operation is not performed, the distance between the engaging portion and the clamping portion changes with the cross section of the engaged portion due to the elastic force of the elastic portion. It may be kept smaller than the dimensions.

According to this configuration, the distance between the engaging portion and the pinching portion is kept smaller than the cross-sectional dimension of the engaged portion when not operated from the outside, so that the engaging portion is engaged with the engaged portion. remain uncoupled.

The main body portion includes the engaged portion, and the lid portion includes the engaging portion, the elastic portion, the engaging piece main body, and the engaging portion integrated with the engaging piece main body. and the elastic portion may be attached to the main body of the engaging piece.

According to this configuration, since the elastic portion and the engaging portion are interlocked via the engaging piece, a stable operational feeling can be obtained.

The engaging piece main body has a front surface facing the engaged portion and a back surface opposite to the front surface. A through-hole is provided to pass through the elastic portion, and the elastic portion continues rearwardly from a contact portion that can contact the engaged portion and the contact portion in a moving direction from the unlocked state to the locked state. , and may protrude from the rear side to the front side of the engaging piece main body through the through hole of the engaging piece main body.

According to this configuration, the length of the elastic portion can be secured by extending the elastic portion from the back side to the front side of the main body portion, so that the elastic force of the elastic portion can be secured.

The present invention relates to a lid used for a cooler box, which has an opening and can accommodate a stored object, and is a part of the cooler box, the main body having an engaged portion. is movable relative to the engaged portion to open and close the opening, and is capable of moving with respect to the engaged portion, and engages with the engaged portion by an operation from the outside to keep the lid portion in a closed state. and an elastic portion that interlocks with the engaging portion and has an elastic force. is released and can be maintained in the unlocked state when the operation is not performed, and when the operation is performed with a force greater than the elastic force of the elastic portion, It is a cover portion that moves from the unlocked state to the locked state.

In the cooler box having the cover attached to the main body of this configuration, the engaging portion is always maintained in a disengaged state with respect to the engaged portion when not operated from the outside. It is possible to prevent the lid from being held closed.

As described above, according to the present invention, it is possible to provide a cooler box in which the usability of the locking device is improved.

FIG. 1 shows a cooler box according to an embodiment of the present invention, and is a perspective view when the lever is in a locked state (however, only the outline of the main body is shown by two-dot chain lines). FIG. 2 is an enlarged perspective view of the main part showing the surroundings of the operating portion of the cooler box, showing the state in which the lever corresponds to the unlocked state. FIG. 3 is an enlarged perspective view of the main part showing the surroundings of the operating portion of the cooler box, showing a state in which the lever corresponds to the locked state. FIG. 4 is an exploded perspective view around the engaging portion and the engaged portion of the cooler box. FIG. 5a shows the state of the claw portion (engaging portion) of the locking member in the same cooler box relative to the fixed shaft (engaged portion), and shows the unlocked state when the lid portion is closed. FIG. 5b shows the state of the claw portion (engaging portion) of the locking member in the same cooler box relative to the fixed shaft (engaged portion), and shows the locked state when the lid portion is closed.

Next, an embodiment of the present invention will be described. FIG. 1 shows the shape of the cooler box 1 of this embodiment. However, in FIG. 1, only the outline of the main body is indicated by a chain double-dashed line.

The cooler box 1 of this embodiment, like the conventional one, has a main body part 2 which has an opening 21 which opens upward and which can store items inside, and a main body part 2 which moves relative to the main body part 2 so that the opening 21 can be opened. and a lid portion 3 that opens and closes. As shown in FIGS. 5a and 5b, a locking device L is provided across the main body 2 and the lid 3 to hold the lid 3 in a closed state. The cooler box 1 is rectangular in plan view (see FIG. 1). Further, the cooler box 1 of the present embodiment includes an engaged portion and an engaging portion that engages with the engaged portion.

The lid portion 3 of this embodiment is "opened on both sides", and the movement of the lid portion 3 with respect to the main body portion 2 is, for example, in this embodiment, the lid portion 3 moves above the opening 21 in a substantially parallel state. The movement can be such that the whole is separated from the main body part 2 . Further, the movement of the lid portion 3 with respect to the main body portion 2 is achieved by locking one of the levers 31, which will be described later, so that one of the two parallel long sides in the plan view shape functions as a hinge, and the other long side functions as a hinge. The lid portion 3 can be lifted on one long side and rotated. By this movement, the lid portion 3 can be brought into a closed state and an open state.

The body part 2 has a fixed shaft 22 as an engaged part, as shown in a perspective view in FIG. 4 and in vertical cross-sections in FIGS. The fixed shaft 22 is fixedly provided on the body portion 2 . In the main body 2 of this embodiment, the fixed shafts 22 are provided along the two long sides of the opening 21 of the main body 2 . For example, on each long side of the main body 2, two fixed shafts 22 are provided at symmetrical positions with respect to the center in the longitudinal direction. The fixed shaft 22 is arranged outside the opening 21 as shown in FIG. The fixed shaft 22 of the present embodiment is, for example, a bar with a circular cross section.

The lid portion 3 includes a lid portion main body 3A that covers the opening portion 21, a lever 31 as an operation portion operated by the user from the outside of the cooler box 1, and a lock member 32 as an engagement piece interlocking with the lever 31. provided (see Figure 1).

The locking member 32 is movable with respect to the fixed shaft 22 provided in the main body 2, as shown in vertical cross-sections in FIGS. 5a and 5b. Furthermore, the locking member 32 has a claw portion 321 as an engaging portion that engages with the fixed shaft 22 .

Further, the lid portion 3 includes a plate spring 33 as an elastic portion that interlocks with the claw portion 321 and has an elastic force.

As shown in FIG. 1, the lever 31 is provided at the center in the longitudinal direction of both long side portions of the lid portion 3 . Also, the lever 31 is movable in the vertical direction. Specifically, as shown in FIGS. 1 to 3, the lever 31 is provided such that the inner portion moves vertically with respect to the lid main body 3A.

When the lever 31 is not operated, it is spring-biased upward with respect to the lid main body 3A by the elastic force of the plate spring 33 . When the lever 31 is operated (for example, when the user pushes down the lever 31 with a force greater than the elastic force of the plate spring 33), the lever 31 rotates about the rotation axis of the lever 31 with respect to the lid body 3A. move. The lever 31 and the lock member 32 are physically connected by a rod-like body or the like, and move (rotate) integrally by operating the lever 31 . Therefore, when the lever 31 is moved, the lock member 32 is interlocked. Note that the lever 31 and the lock member 32 may be an integral member.

The locking member 32 cooperates with the fixed shaft 22 to hold the lid 3 in the closed state (see FIGS. 5a and 5b). That is, the lock device L has a fixed shaft 22 provided on the body portion 2 and a lock member 32 provided on the lid portion 3 .

Further, the lock member 32 rotates with respect to the lid main body 3A. The rotation range of the lock member 32 is set so that it extends from the front side (see FIG. 5a) to the position where the claw portion 321 is aligned with the fixed shaft 22 (see FIG. 5b) when the fixed shaft 22 of the main body 2 is used as a reference. is set. The lock member 32 extends downward when the lid portion 3 is horizontal as shown in the drawing, with a pivot shaft 322, which is the center of rotation of the lock member 32, as a reference. The lock member 32 of this embodiment includes a lock main body portion 323 as an engaging piece main body integrated with the claw portion 321 in addition to the claw portion 321 .

The locking member 32 of the present embodiment is made of, for example, a resin such as polyacetal resin, or a material obtained by mixing glass with resin.

The claw portion 321 is movable with respect to the fixed shaft 22, and is engaged with the fixed shaft 22 by an operation from the outside (for example, operation of the lever 31 from the outside) to keep the lid portion 3 in the closed state. Hold. The claw portion 321 has a locked state (see FIG. 5B) in which it is engaged with the fixed shaft 22 and an unlocked state (see FIG. 5A) in which the engagement (engagement with the fixed shaft 22) is released. can be moved between The claw portion 321 of the present embodiment can move (clockwise in the drawing) so as to approach the fixed shaft 22 from the side closer to the opening 21 . Further, the claw portion 321 can be maintained in an 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 33, the leaf spring 33 is held in place. When a force capable of deforming 33 is applied, it moves from the unlocked state to the locked state.

In this way, when the lever 31 is not operated from the outside (when the lever 31 is floating from the lid body 3A as shown in FIG. 2), the claw 321 is always disengaged from the fixed shaft 22. Since the closed state is maintained, it is possible to prevent the lid portion 3 from being held in the closed state when the user does not intend to do so. As a result, for example, the lid portion 3 can be opened/closed by grasping an arbitrary portion of the lid portion 3, so that the operability can be improved when the cooler box is used on a narrow fishing boat. In addition, the user can easily store a large amount of caught fish in the cooler box 1 by opening and closing the lid portion 3 without operating the lever 31. .

The claw portion 321 faces one side of the rotation range with respect to the fixed shaft 22 (see FIGS. 5a and 5b). The claw portion 321 of this embodiment faces the back side (the left side in FIGS. 5a and 5b) with respect to the fixed shaft 22 .

The lock main body 323 has a surface 324 facing the fixed shaft 22 and a back surface 325 opposite to the surface 324 . A through hole 326 is provided in the lock main body 323 so as to penetrate between the front surface 324 and the rear surface 325 .

The leaf spring 33 of the present embodiment is interlocked with the lock member 32 and rotates with respect to the lid main body 3A. For example, the leaf spring 33 extends downward on the front side (the right side in FIGS. 5a and 5b) with respect to the fixed shaft 22, and is fixed by overcoming the fixed shaft 22 from the front side with respect to the fixed shaft 22. It extends to the far side of the shaft 22 .

The leaf spring 33 includes a contact portion 331 that can contact the fixed shaft 22 . The leaf spring 33 of this embodiment has a shape in which the contact portion 331 is raised. Further, the contact portion 331 of the plate spring 33 has an inclined surface that can contact the fixed shaft 22 .

The leaf spring 33 also includes a convex portion 332 that continues rearward from the contact portion 331 in the direction of movement from the unlocked state to the locked state (clockwise direction in FIGS. 5a and 5b). Further, the leaf spring 33 includes an extended portion 333 that continuously extends rearward from the convex portion 332 in the moving direction from the unlocked state to the locked state.

The moving direction from the unlocked state to the locked state is, for example, the moving direction of the plate spring 33 in which the convex portion 332 approaches the fixed shaft 22 . The front in the direction of movement from the unlocked state to the locked state is the front side in this direction of movement, and the rear in the direction of movement from the unlocked state to the locked state is the side opposite to the front side in this direction of movement.

Further, the leaf spring 33 of this embodiment is attached to the lock body portion 323 . Therefore, since the plate spring 33 and the claw portion 321 are interlocked via the lock body portion 323, a stable operation feeling can be obtained when an operation is performed from the outside (for example, when the lever 31 is operated). .

Further, the leaf spring 33 is inserted through the through hole 326 of the lock body portion 323 . For example, the plate spring 33 protrudes from the back side of the lock body portion 323 to the front side through the through hole 326 . In this way, since the leaf spring 33 extends from the back side to the front side of the lock main body 323, even when the leaf spring 33 is arranged in a limited space, the length of the leaf spring 33 (for example, the extension Since the length of the portion 333 can be secured, the elastic force of the leaf spring 33 can be secured. In addition, since the length of the leaf spring 33 can be secured in this way, the degree of freedom in designing the cooler box 1 is improved.

The leaf spring 33 is made of an elastic material such as metal or resin. Specifically, the leaf spring 33 is made of stainless steel.

The contact portion 331 is kept in contact with the fixed shaft 22 which is a part of the main body portion 2 due to the elastic force of the plate spring 33 when the contact portion 331 is not operated from the outside. As described above, when the lever 31 is not operated by the user, the contact portion 331 of the plate spring 33 is in contact with a part of the body portion 2. 321 interlocks with leaf spring 33 and is maintained in a disengaged state with respect to fixed shaft 22 . Further, since the contact portion 331 of the present embodiment has slopes, it contacts the fixed shaft 22 having a circular cross section at any portion of the slopes. This allows the contact portion 331 to reliably contact the fixed shaft 22 .

The protruding portion 332 protrudes, for example, from the rotating shaft 322 side of the locking member 32 toward the fixed shaft 22 . Moreover, although the convex portion 332 constitutes, for example, a corner portion, the convex portion 332 may constitute a curved convex portion other than forming a corner portion. In the unlocked state (see FIG. 5a), the angle θ formed by the contact portion 331 with respect to the imaginary line connecting the center of the rotating shaft 322 and the center of the fixed shaft 22 is 100° or more and 140° or less. is desirable, and more preferably 120°. Further, when the angle θ is within the above range, when the contact portion 331 of the plate spring 33 contacts the fixed shaft 22 in a state where no force is applied to the lock member 32 from the outside, the lock member 32 rotates around the rotation shaft 322 . The unlocked state is maintained because a force to rotate in the unlocking direction is generated. In order to shift the lid portion 3 to the locked state, it is necessary to rotate the lock member 32 in the locking direction with a force exceeding the elastic force of the plate spring 33 with the rotating shaft 322 as the central axis.

The shape of the extension part 333 is, for example, a rectangular plate bent in an L shape. The length of the first extending portion 3331 extending downward among the extending portions 333 is, for example, longer than the length of 3332. Specifically, the length of the second extension portion 3332 is 5 mm or more and 20 mm or less, preferably 10 mm or more and 15 mm or less. By setting the length of the second extension portion 3332 within such a range, it is possible to obtain the plate spring 33 with appropriate hardness.

The contact portion 331 of this embodiment is maintained in contact with the fixed shaft 22 by the elastic force of the leaf spring 33 when not operated from the outside (see FIG. 5a).

Further, when the lock member 32 is operated with a force greater than the elastic force of the plate spring 33, the protrusion 332 climbs over the fixed shaft 22, thereby moving the claw portion 321 from the unlocked state to the locked state (Fig. 5b). At this time, the leaf spring 3 slides on the fixed shaft 22 to move. As a result, the lever 31 is in a more sunken state than in FIG. 2 (see FIG. 3). Moreover, at this time, the upper surface of the lever 31 of this embodiment becomes horizontal.

In this way, when an operation is performed with a force greater than the elastic force, the convex portion 332 rides over the fixed shaft 22 and the contact portion 331 moves away from the fixed shaft 22. Since the claw portion 321 does not shift to the locked state, even if force is applied to the lid portion 3 due to an impact or the like, the lid portion 3 is unlikely to be closed.

In the cooler box 1 described above, the lid portion 3 includes the claw portion 321 as the engaging portion, the leaf spring 33 as the elastic portion, and the claw portion 321 interlocking with the claw portion 321 and the claw portion 321 as the engaged portion. A contact portion 331 (a portion of the leaf spring 33 ) is provided as a sandwiching portion arranged at a position sandwiching the fixed shaft 22 together with the pawl portion 321 when engaging with the plate spring 22 . Accordingly, when not operated from the outside, the distance between the claw portion 321 (specifically, the surface facing the contact portion 331 at the tip of the claw portion 321 (the upper surface of the claw portion 321) and the contact portion 331 is By maintaining a state smaller than the cross-sectional dimension of the fixed shaft 22 (specifically, the diameter of the fixed shaft 22 having a circular cross section), the fixed shaft 22 does not pass through the gap between the claw portion 321 and the contact portion 331 . Therefore, the claw portion 321 is maintained in a disengaged state with respect to the fixed shaft 22 .

Further, in this cooler box 1, the claw portion 321 as the engaging portion and the contact portion 331 as the pinching portion move when operated from the outside with a force greater than the elastic force of the leaf spring 33, and the claw portion 321 moves. The contact portion 331 is pressed against the fixed shaft 22, and the claw portion 321 and the contact portion 331 are deformed so that the distance between the claw portion 321 and the contact portion 331 becomes larger than the cross-sectional dimension of the fixed shaft 22. By doing so, the claw portion 321 is locked.

Further, in the cooler box 1 of the present embodiment, the claw portion 321 is arranged below the fixed shaft 22 without interfering with it in the unlocked state (see FIG. 5a). Therefore, since the lid portion 3 is arranged in a sunken state, no gap is generated between the main body portion 2 and the lid portion 3, so that even in the unlocked state, the claw portion 321 is held by the fixed shaft 22. Cold air is less likely to escape from between the main body part 2 and the lid part 3, compared to a cooler box arranged above.

Although one embodiment of the present invention has been described above, 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.

For example, in the cooler box 1 of the above-described embodiment, the unlocked state is determined by the elastic force of the leaf spring 33 as the elastic portion, and the force between the claw portion 321 as the engaging portion and the contact portion 331 as the pinching portion. Although it is maintained by both the gap, it may be maintained by one of the elastic force of the elastic portion and the gap between the engaging portion and the clamping portion.

Further, although the cooler box 1 of the above-described embodiment includes the fixed shaft 22 as the engaged portion provided in the main body portion 2 and the claw portion 321 as the engaging portion provided in the lid portion 3, , Conversely, the body portion 2 may include the engaging portion and the lid portion 3 may include the engaged portion.

In the above embodiment, the engaging portion is the claw portion 321 and the engaged portion is the fixed shaft 22 . Also, the elastic portion is the plate spring 33 . However, the shapes and engagement modes of these parts are not limited to those of the above-described embodiment, and various modifications can be made.

For example, the contact portion 331 of the plate spring 33 in the above embodiment can contact the fixed shaft 22 of the body portion 2 , but may contact another portion of the body portion 2 . Specifically, it is conceivable to provide a flange portion extending outside the opening portion 21 at a portion defining the opening portion 21 of the main body portion 2 so that the contact portion 331 can abut against this flange portion. In this case, the contact portion 331 contacts the body portion 2 at a position separated from the claw portion 321 .

Further, the leaf spring 33 of the above-described embodiment extends downward on the front side (the right side in FIGS. 5a and 5b) with respect to the fixed shaft 22, and further extends downward from the front side with respect to the fixed shaft 22. extended to the far side of the fixed shaft 22 by overcoming the , overcoming the fixed shaft 22 and extending to the front side of the fixed shaft 22 .

The engaging portion (for example, the claw portion 321) of the above-described embodiment moves from the unlocked state to the locked state by being operated from the outside with a force greater than the elastic force of the elastic portion. The unlocked state may be moved to the locked state when a force capable of deforming the elastic portion is applied even if the above is not performed.

Instead of the plate spring 33 in the above embodiment, various types of springs such as coil springs, rubber, and members having a restoring force such as a cushion mechanism using air pressure or hydraulic pressure may be used as the elastic portion. Moreover, at least a part of the elastic portion need only have elasticity, and the entire elastic portion does not have to have elasticity. For example, when a coil spring is used as the elastic portion, the contact portion 331, the projecting portion 332, and the extending portion 333 are each made into rigid members, and the projecting portion 332 and the extending portion 333 are connected by the coil spring. configuration is conceivable.

The elastic portion may include the contact portion 331 but not the convex portion 332. Even in this case, when no external operation is performed, the elastic force of the elastic portion causes the contact portion 331 to move toward the lid. It is kept in contact with the portion 3 and a part of the main body portion 2 .

Further, the lock main body portion 323, which is the main body of the engaging piece, does not have to be provided with the through hole 326. FIG. In this case, the leaf spring 33 may be configured so as to extend along the lock body portion 323 and not penetrate the lock body portion 323 .

In addition, although the lid portion 3 of the above-described embodiment is "double-opening", a hinge that cannot be separated from the main body portion 2 is provided for one of the two parallel long sides of the lid portion 3 in plan view. It is also possible to make it "one-way open".

Although the operating portion in the above embodiment is the lever 31 that can move vertically, it may be a slide member that can slide horizontally. In this case, by sliding the slide member, a sliding force may be transmitted to the lock member 32, and the lock member 32 may move from the unlocked state to the locked state.

Note that the lid portion 3 is used in place of the lid portion of the existing cooler box, and can be configured to be attached to the body portion of the existing cooler box. In the cooler box in which the replaced lid portion 3 is attached to the main body portion, the engaging portion (claw portion 321) is always the engaged portion (fixed shaft 22) when not operated from the outside, as in the cooler box 1 of the above-described embodiment. Since the engagement with the lid portion 3 is maintained in a released state, it is possible to prevent the lid portion 3 from being held in a closed state when the user does not intend. Therefore, the existing cooler box can be improved to be safer simply by replacing the lid portion of the existing cooler box with the lid portion 3 as described above.

REFERENCE SIGNS LIST 1 cooler box 2 main body 3 lid 3A lid main body 21 opening 22 fixed shaft (shaft) 31 lever (operating portion) 32 lock member (engagement piece ), 321... Claw portion (engaging portion), 322... Rotating shaft, 323... Lock main body portion (engaging piece main body), 324... Front surface, 325... Back surface, 326... Through hole, 331... Contact portion, 332 ... Projection portion 333 ... Extension portion 3331 ... First extension portion 3332 ... Second extension portion L ... Locking device θ ... Angle

Claims (8)

a main body portion having an opening for storing a stored object therein; and a lid portion that moves with respect to the main body portion to open and close the opening,
one of the body portion and the lid portion includes an engaged portion;
The other of the main body portion and the lid portion is movable with respect to the engaged portion, and is engaged with the engaged portion by operation from the outside, thereby closing the lid portion. An engaging portion for holding and an elastic portion interlocking with the engaging portion and having an elastic force,
the elastic portion includes a contact portion that can contact the engaged portion;
The engaging portion is movable between a locked state in which the engaging portion is engaged with the engaged portion and an unlocked state in which the engagement is released, and when the operation is not performed, the unlocked state. and when a force capable of deforming the elastic portion is applied to the elastic portion by performing the operation with a force greater than the elastic force of the elastic portion , the unlocked state changes to the locked state. move and
The cooler box, wherein the contact portion is kept in contact with a portion of the one of the body portion and the lid portion by the elastic force of the elastic portion when the operation is not performed. 2. The cooler box according to claim 1, wherein an engaging position of said engaging portion with respect to said engaged portion and a contact position of said contacting portion with respect to said engaged portion are different. The contact portion is kept in contact with the engaged portion by the elastic force of the elastic portion when the operation is not performed,
The elastic portion is composed of a plate spring including a convex portion that continues rearward in the direction of movement from the unlocked state to the locked state with respect to the contact portion, and the force is greater than the elastic force of the elastic portion. 3. The cooler box according to claim 1, wherein when the operation is performed, the engaging portion moves from the unlocked state to the locked state by moving the projecting portion over the engaged portion. . The body portion includes the engaged portion,
The lid portion is interlocked with the engaging portion, the elastic portion, and the engaging portion, and moves the engaged portion together with the engaging portion when the engaging portion is engaged with the engaged portion. and a pinching portion arranged at a pinching position,
The engaged portion is composed of a shaft,
The elastic portion is elastically deformable such that the distance between the engaging portion and the pinching portion changes,
Claims 1 to 3 , wherein when the operation is not performed, the elastic force of the elastic portion maintains the distance between the engaging portion and the pinching portion in a state smaller than the cross-sectional dimension of the engaged portion. The cooler box according to any one of . The body portion includes the engaged portion,
The lid portion includes the engaging portion, the elastic portion, and an engaging piece including an engaging piece main body and the engaging portion integrated with the engaging piece main body,
The cooler box according to any one of claims 1 to 4 , wherein the elastic portion is attached to the engaging piece main body. The engaging piece main body has a surface facing the engaged portion and a back surface opposite to the surface,
The engaging piece main body is provided with a through hole penetrating between the front surface and the back surface,
The elastic portion is composed of a leaf spring including the contact portion and a convex portion that continues rearwardly of the contact portion in the moving direction from the unlocked state to the locked state, and the engaging piece 6. The cooler box according to claim 5 , wherein the engagement piece main body protrudes from the back side to the front side through a through hole of the main body. A lid used for a cooler box,
opening and closing the opening by moving with respect to a main body, which is a part of the cooler box and which has an opening and can accommodate a stored item, and which is provided with a to-be-engaged portion;
an engaging portion that is movable with respect to the engaged portion and holds the lid portion in a closed state by engaging with the engaged portion by an operation from the outside; and an elastic part that is interlocked and has an elastic force,
the elastic portion includes a contact portion that can contact the engaged portion;
The engaging portion is movable between a locked state in which the engaging portion is engaged with the engaged portion and an unlocked state in which the engagement is released, and when the operation is not performed, the unlocked state. and when a force capable of deforming the elastic portion is applied to the elastic portion by performing the operation with a force greater than the elastic force of the elastic portion, the unlocked state changes to the locked state. move and
The lid section, wherein the contact portion is kept in contact with the part of the main body section by the elastic force of the elastic section when the operation is not performed. 8. The lid portion according to claim 7, wherein an engaging position of said engaging portion with respect to said engaged portion and an abutting position of said abutting portion with respect to said engaged portion are different.