Cooler box

Abstract

To provide a cooler box in which a lid body can be opened and closed with a simple structure with respect to a box body.SOLUTION: A cooler box 1 comprises a box body 2, a lid body 4, a shaft portion 61, an operating body 62, and a groove portion 63. The box body 2 has a first opening 23. The lid body 4 opens and closes the first opening 23. The shaft portion 61 has a lock portion 61b, and is supported by the lid body 4 so as to be rotatable. The operating body 62 is fixed to the shaft portion 61 and rotates integrally with the shaft portion 61 around the shaft portion 61. The groove portion 63 has a second opening 63c that opens in a direction intersecting the shaft portion 61, and is fixed to the box body 2. The lock portion 61b is disposed in the groove portion 63. The lock portion 61b can be in a locked position in which movement in an intersecting direction is restricted by the second opening 63c, and an unlocked position in which it can be removed from the groove portion 63 through the second opening 63c, depending on an operation of the operating body 62.SELECTED DRAWING: Figure 4

Description

[Technical field]

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

[0002] 2. Description of the Related Art Conventionally, there is known a cooler box that includes a box having an opening, a lid that opens and closes the opening of the box, and an opening and closing mechanism that opens and closes the lid with respect to the box (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-80532 A Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional cooler boxes have complex opening and closing mechanisms and many parts.

[0005] An object of the present invention is to provide a cooler box in which the lid can be opened and closed from the box body with a simple structure. [Means for solving the problem]

[0006] A cooler box according to a first aspect of the present invention comprises a box body, a lid body, an axis portion, an operating body, and a groove portion. The box body has a first opening. The lid body opens and closes the first opening. The axis portion has a lock portion and is rotatably supported by the lid body. The operating body is fixed to the axis portion and rotates integrally with the axis portion around the axis portion. The groove portion has a second opening portion that opens in a cross direction that crosses the axis portion, and is fixed to the box body. The lock portion is disposed in the groove portion. The lock portion can take a locked position in which movement in the cross direction is restricted by the second opening portion, and an unlocked position in which the lock portion can be released from the groove portion through the second opening portion, depending on operation of the operating body.

[0007] In this cooler box, the operating body is fixed to the shaft portion and rotates integrally with the shaft portion around the shaft portion. The locking portion of the shaft portion can take a locked position or an unlocked position in response to the rotation of the operating body. This makes it possible to open and close the lid body by configuring the operating body, the shaft portion, and the locking portion as a single part, for example. In addition, since the movement of the locking portion is restricted by the second opening portion, the locked state of the lid body can be realized with a simple configuration. As a result, it is possible to provide a cooler box in which the lid body can be opened and closed with a simple structure with respect to the box body.

[0008] The locking portion of the cooler box according to the first aspect of the present invention has a semicircular arc surface that engages with the groove, in which case the locking portion can be formed with a simple structure.

[0009] The locking portion of the cooler box according to the second aspect of the present invention further has a D-cut surface, in which case the locking portion can be easily removed from the groove in the unlocked position.

[0010] The operating body of the cooler box according to a fourth aspect of the present invention in accordance with any one of the first to third aspects is disposed on the upper surface of the lid. In this case, the lid can be opened and closed from the upper surface of the lid.

[0011] The second opening of the cooler box according to the fifth aspect of the present invention opens in the same direction as the first opening. In this case, the locking portion can be easily released from the groove.

[0012] The cooler box according to any one of the first to fifth aspects of the present invention further includes an opening / closing mechanism that rotates the lid about the axis, and the lid has a holding portion that is held by the outer circumferential surface of the groove when the lid is opened about the axis by the opening / closing mechanism. In this case, a cooler box in which the lid can be opened from both sides relative to the box body can be realized with a simple configuration.

[0013] In the cooler box of the seventh aspect according to the sixth aspect of the present invention, one of the box body and the lid body has a stopper portion that restricts the rotation of the lid body when the lid body is opened around the shaft portion by the opening / closing mechanism. In this case, the opening angle of the lid body can be restricted by the stopper portion.

[0014] The stopper portion of the cooler box according to the seventh aspect of the present invention is disposed on the outer circumferential surface of the groove and protrudes in a direction away from the lock portion. In this case, the stopper portion can be realized with a simple structure.

[0015] A cooler box according to any one of the first to eighth aspects of the present invention further includes an opening / closing mechanism that rotates the lid about the shaft, and a restricting part that restricts the locking part from coming off the groove when the lid is rotated about the shaft by the opening / closing mechanism, and the restricting part is movable between an engaging position where it can engage with the outer circumferential surface of the groove and a disengaging position where it does not engage with the outer circumferential surface of the groove in response to the rotation of the lid. In this case, the restricting part can prevent the lid from coming off the box when the lid is rotated about the shaft by the opening / closing mechanism.

[0016] A cooler box according to a tenth aspect of the present invention, which is in accordance with any one of the first to ninth aspects, further includes a holding mechanism capable of holding an operating body, the holding mechanism having a storage section, a first engagement section, a pressing member, and a biasing member. The storage section is disposed on either the lid body or the shaft section, and opens toward the other of the lid body or the shaft section. The first engagement section is disposed on an outer circumferential surface of the other of the lid body or the shaft section. The pressing member is disposed in the storage section so as to be movable toward or away from the other of the lid body or the shaft section, and engages with the first engagement section when the operating body is in either a locked position corresponding to the locked posture or an unlocked position corresponding to the unlocked posture. The biasing member is disposed in the storage section and biases the pressing member toward the shaft section. In this case, the holding mechanism can hold the operating body in the locked position or the unlocked position, and can adjust the lock feeling.

[0017] In a cooler box of an eleventh aspect according to a tenth aspect of the present invention, the holding mechanism further has a second engagement portion disposed on an outer circumferential surface of either the lid body or the shaft portion at a position circumferentially spaced from the first engagement portion and the shaft portion, and the pressing member engages with the first engagement portion when the operating body is in the locked position and engages with the second engagement portion when the operating body is in the unlocked position. In this case, the holding mechanism can hold the operating body at the locked position and the unlocked position and can adjust the lock feeling.

[0018] In a cooler box according to the tenth or eleventh aspect of the present invention, the storage portion is provided in the lid, and the first engagement portion is provided in the shaft portion. Effect of the Invention

[0019] According to the present invention, it is possible to provide a cooler box in which the lid can be opened and closed with respect to the box body with a simple structure. [Brief description of the drawings]

[0020] [Figure 1] FIG. [Diagram 2] Cross-sectional view of line II-II in Figure 1. [Diagram 3] Bottom view of line III-III in Figure 1. [Figure 4] FIG. 4 is a partial cross-sectional perspective view of the cooler box when the locking portion is in a locked position. [Diagram 5] FIG. 4 is a partial cross-sectional perspective view of the cooler box when the locking portion is in an unlocked position. [Figure 6] 13A and 13B are diagrams for explaining a state in which the locking portion is disengaged from the groove portion. [Figure 7] FIG. 4 is a diagram for explaining a stopper portion. [Figure 8] FIG. 4 is a diagram for explaining a restricting portion. [Figure 9] FIG. 4 is a diagram for explaining a restricting portion. [Figure 10] FIG. [Figure 11] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] A cooler box 1 according to one embodiment of the present invention includes a box body 2, a lid body 4, a pair of opening / closing mechanisms 6, and a restricting portion 8, as shown in FIGS.

[0022] The box 2 is formed in a rectangular box shape and has an internal storage space capable of storing items. The box 2 is made of resin and contains a heat insulating material.

[0023] The box body 2 has a bottom (not shown), a pair of long walls 21, a pair of short walls 22, and a first opening 23. The bottom has a substantially rectangular outer shape. The pair of long walls 21 extend upward from the long sides of the bottom. In the following description, one of the pair of long walls 21 is referred to as the first long wall 21a, and the other of the pair of long walls 21 is referred to as the second long wall 21b. The pair of short walls 22 extend upward from the short sides of the bottom. The first opening 23 has a substantially rectangular outer shape and opens upward.

[0024] The lid body 4 is a flat plate-like member having a generally rectangular outer shape. The lid body 4 is made of resin and contains a heat insulating material. The lid body 4 opens and closes the first opening 23. The lid body 4 is supported by the box body 2 so as to be rotatable and detachable. The lid body 4 can be opened from both sides relative to the box body 2. The lid body 4 can be rotated about an axis parallel to the longitudinal direction of the box body 2.

[0025] When the first opening 23 is closed by the lid 4, the upper surface of the lid 4 is configured to be flush with the pair of short walls 22. When the first opening 23 is closed by the lid 4, the side surfaces of the lid 4 extending in the longitudinal direction are configured to be flush with the pair of long walls 21.

[0026] The cover 4 has a pair of long sides 41, a pair of short sides 42, and a support portion 43. The pair of long sides 41 extend in the longitudinal direction of the box body 2. In the following description, one of the pair of long sides 41 is referred to as a first long side 41a, and the other of the pair of long sides 41 is referred to as a second long side 41b. The pair of short sides 42 extend in the transverse direction of the box body 2. The support portions 43 are disposed at both ends of the pair of long sides 41 in the longitudinal direction. The support portions 43 are circular holes that open in the longitudinal direction.

[0027] The lid body 4 has an outer lid 44 and an inner lid 45. The outer lid 44 is disposed on the upper part of the inner lid 45. The outer lid 44 is disposed so as to cover the upper part of the inner lid 45. The outer lid 44 has a recess 44a in which an operating body 62, which will be described later, is disposed. The inner lid 45 is fixed to the outer lid 44 below the outer lid 44. The inner lid 45 has a support part 43. Note that a heat insulating material (not shown) is disposed between the outer lid 44 and the inner lid 45.

[0028] The pair of opening and closing mechanisms 6 open and close the lid 4 with respect to the box 2. In the following description, one of the pair of opening and closing mechanisms 6 will be referred to as a first opening and closing mechanism 6A, and the other of the pair of opening and closing mechanisms 6 will be referred to as a second opening and closing mechanism 6B.

[0029] The first opening and closing mechanism 6A is disposed across the first long wall 21a of the box 2 and the first long side 41a of the lid 4. The first opening and closing mechanism 6A has a shaft portion 61, an operating body 62, and a groove portion 63.

[0030] The shaft portion 61 extends in the longitudinal direction from both longitudinal ends of the operating body 62. In this embodiment, the shaft portion 61 is integral with the operating body 62. The shaft portion 61 is rotatably supported by the support portion 43. The shaft portion 61 and the operating body 62 are made of resin. The shaft portion 61 is rotatable relative to the cover body 4.

[0031] The shaft portion 61 has a shaft body 61a and a locking portion 61b. The shaft body 61a has a hollow cylindrical shape and is supported by the support portion 43. The locking portion 61b extends in the longitudinal direction from the tip surface of the shaft body 61a. The locking portion 61b is disposed in a groove portion 63. The locking portion 61b is integral with the shaft body 61a. The locking portion 61b is formed, for example, by forming the tip of the shaft portion 61 into a D-cut shape. The locking portion 61b has a semicircular arc surface 61c that engages with the groove portion 63, and a D-cut surface 61d.

[0032] The operating body 62 is disposed in the recess 44a of the outer lid 44. The operating body 62 is fixed to the shaft portion 61 and rotates integrally with the shaft portion 61 around the shaft portion 61. The operating body 62 is disposed on the upper surface of the lid body 4. The operating body 62 is disposed at the center of the first long side 41a of the lid body 4 in the longitudinal direction. The operating body 62 is rotatable relative to the lid body 4 with the shaft portion 61 as a rotation axis. The operating body 62 is rotatable relative to the lid body 4 between a locked position shown in FIG. 4 and an unlocked position shown in FIG. 5. The operating body 62 is urged toward the locked position by, for example, an urging member (not shown) such as a torsion spring. The urging member is connected to, for example, the shaft portion 61.

[0033] The groove portion 63 is fixed to the box body 2. The groove portion 63 is fixed to the inner surfaces of a pair of short walls 22 of the box body 2. The groove portion 63 is configured by a protrusion protruding in the longitudinal direction from a plate-like plate fixed to the box body 2. An inner peripheral surface 63a and an outer peripheral surface 63b of the groove portion 63 are formed in a substantially arc shape. The inner peripheral surface 63a of the groove portion 63 engages with the arc surface 61c of the lock portion 61b.

[0034] The groove 63 has a second opening 63c that opens in a direction intersecting with the shaft 61. The direction intersecting with the shaft 61 is a direction intersecting with the longitudinal direction. The second opening 63c opens in the same direction as the first opening 23 (upward in this case).

[0035] The second opening and closing mechanism 6B is disposed across the second long wall 21b of the box 2 and the second long side 41b of the lid 4. The second opening and closing mechanism 6B has a similar configuration to the first opening and closing mechanism 6A. Therefore, a detailed description of the second opening and closing mechanism 6B will be omitted. In the drawings, the same reference numerals as those of the first opening and closing mechanism 6A are used in the components of the second opening and closing mechanism 6B.

[0036] The operation of the pair of opening / closing mechanisms 6 will be described with reference to Fig. 4 to Fig. 6. The locking portion 61b can take a locked position shown in Fig. 4 and an unlocked position shown in Fig. 5 in response to a rotation operation of the operating body 62. When the operating body 62 is in the locked position, the locking portion 61b can take the locked position. When the operating body 62 is in the unlocked position, the operating body 62 can take the unlocked position.

[0037] In the locked position, the movement of the locking portion 61b in the intersecting direction (upward in this case) is restricted by the second opening 63c of the groove portion 63. In the locked position, the approximate center of the arc surface 61c of the locking portion 61b is located at the second opening 63c. In the locked position, the dimension of the locking portion 61b in the short direction is greater than the dimension of the second opening 63c. Therefore, in the locked position, the locking portion 61b cannot come out of the second opening 63c. When the locking portion 61b is in the locked position, the first long wall 21a of the box body 2 and the first long side 41a of the lid body 4 are connected to each other.

[0038] In the unlocked position, the locking portion 61b can be released from the groove portion 63 through the second opening 63c. As shown in Fig. 5, in the unlocked position, the dimension of the locking portion 61b in the short direction is smaller than the dimension of the second opening 63c. Therefore, in the unlocked position, the locking portion 61b can move upward through the second opening 63c.

[0039] 6, when the locking portion 61b of the second opening / closing mechanism 6B is in the locked position, if the locking portion 61b of the first opening / closing mechanism 6A is put in the unlocked position and the first long side 41a of the cover body 4 is lifted upward, the cover body 4 rotates about the shaft portion 61 of the second opening / closing mechanism 6B. At this time, the biasing force of the biasing member connected to the shaft portion 61 of the second opening / closing mechanism 6B acts on the shaft portion 61 of the second opening / closing mechanism 6B, causing the shaft portion 61 of the second opening / closing mechanism 6B to rotate integrally with the cover body 4. Therefore, the operating body 62 of the second opening / closing mechanism 6B rotates integrally with the shaft portion 61 of the second opening / closing mechanism 6B and the cover body 4 while being held in the locked position.

[0040] On the other hand, when the locking portion 61b of the first opening / closing mechanism 6A is in the locked position, if the locking portion 61b of the second opening / closing mechanism 6B is in the unlocked position and the second long side 41b of the lid body 4 is lifted upward, the lid body 4 rotates around the shaft portion 61 of the first opening / closing mechanism 6A. At this time, the biasing force of the biasing member connected to the shaft portion 61 of the first opening / closing mechanism 6A acts on the shaft portion 61 of the first opening / closing mechanism 6A, so that the shaft portion 61 of the first opening / closing mechanism 6A rotates integrally with the lid body 4. Therefore, the operating body 62 of the first opening / closing mechanism 6A rotates integrally with the shaft portion 61 of the first opening / closing mechanism 6A and the lid body 4 while being held in the locked position. Note that when the locking portion 61b of the first opening / closing mechanism 6A and the locking portion 61b of the second opening / closing mechanism 6B are in the unlocked position, the lid body 4 can be removed from the box body 2.

[0041] As shown in Figs. 4 and 7, the lid 4 has a holding portion 46. The holding portion 46 is disposed on the lower surface of the lid 4. The holding portion 46 is formed on the inner lid 45. The holding portion 46 has a substantially U-shaped cross section. The holding portion 46 opens downward when the lid 4 is closed. The holding portion 46 contacts the outer peripheral surface 63b of the groove portion 63 when the lid 4 is closed.

[0042] The holding portion 46 has an arcuate surface 46a and a flat surface 46b. The arcuate surface 46a engages with an outer peripheral surface 63b of the groove portion 63. The flat surface 46b is engageable with a flat surface 24a of the stopper portion 24, which will be described later.

[0043] 7, the holding portion 46 is held by the outer peripheral surface 63b of the groove portion 63 in a state in which the lid body 4 is opened around the shaft portion 61 of the second opening and closing mechanism 6B. The holding portion 46 engages with the outer peripheral surface 63b of the groove portion 63 of the second opening and closing mechanism 6B when the lid body 4 rotates around the shaft portion 61 of the second opening and closing mechanism 6B. This makes it possible to prevent the second long side 41b of the lid body 4 from coming off the second long wall 21b of the box body 2 when the lid body 4 rotates around the shaft portion 61 of the second opening and closing mechanism 6B.

[0044] As shown in Fig. 7, the opening angle θ of the lid 4 relative to the box 2 is set to, for example, 110°. Here, the box 2 has a stopper portion 24. The stopper portion 24 restricts the rotation of the lid 4 when the lid 4 is opened around the shaft portion 61 of the second opening / closing mechanism 6B. The stopper portion 24 restricts the opening angle of the lid 4 from exceeding the set opening angle θ. The stopper portion 24 can hold the lid 4 at the opening angle θ.

[0045] The stopper portion 24 is formed on a part of the outer circumferential surface 63b of the groove portion 63. The cross section of the stopper portion 24 is substantially U-shaped. The stopper portion 24 protrudes from the outer circumferential surface 63b of the groove portion 63 in a direction away from the lock portion 61b.

[0046] The stopper portion 24 has a flat surface 24a and a corner portion 24b. The flat surface 24a is engageable with a flat surface 46b of the holding portion 46. The flat surface 24a extends in a direction intersecting with the short direction when viewed from the long direction. When the lid body 4 is rotated to the opening angle θ, the stopper portion 24 engages with the flat surface 46b of the holding portion 46. This restricts the rotation of the lid body 4.

[0047] Corner portion 24b is located inside flat surface 24a in the short side direction. Corner portion 24b is located above the lower end of flat surface 24a. Corner portion 24b interferes with holding portion 46 when excessive force acts on lid body 4 in the direction in which lid body 4 is opened. The amount of interference between corner portion 24b and holding portion 46 is set to an amount that allows holding portion 46 to overcome corner portion 24b.

[0048] As shown in FIGS. 8 and 9, the restricting portion 8 restricts the locking portion 61b from coming out of the groove portion 63 when the cover 4 rotates around the shaft portion 61 of the first opening / closing mechanism 6A.

[0049] The restricting portion 8 rotates integrally with the lid body 4. The restricting portion 8 is disposed on the outer circumferential side of the groove portion 63. The restricting portion 8 is a cylindrical protrusion, and protrudes in the longitudinal direction from the lid body 4. The restricting portion 8 may be formed integrally with the lid body 4.

[0050] The restricting portion 8 is movable between a disengaged position shown in Fig. 8 and an engaged position shown in Fig. 9 in response to rotation of the cover 4. In the disengaged position, the restricting portion 8 does not engage with the outer circumferential surface 63b of the groove portion 63.

[0051] At the engagement position, the restricting portion 8 can engage with the outer peripheral surface 63b of the groove portion 63, and restricts the locking portion 61b from moving in the opening direction (here, upward) of the second opening 63c. In this embodiment, at the engagement position, the restricting portion 8 can engage with the flat surface 24a of the stopper portion 24. When the cover body 4 rotates around the shaft portion 61 of the first opening / closing mechanism 6A, the restricting portion 8 prevents the locking portion 61b from coming off the groove portion 63 through the second opening 63c. This makes it possible to prevent the second long side 41b of the cover body 4 from coming off the second long wall 21b of the box body 2 when the cover body 4 rotates around the shaft portion 61 of the second opening / closing mechanism 6B. Note that the restricting portion 8 is not shown in FIG. 4 to FIG. 7.

[0052] As shown in FIG. 8, the groove 63 has a recess 63d. The recess 63d opens in a direction intersecting with the shaft 61. The recess 63d opens in the same direction as the second opening 63c. The recess 63d is an opening for allowing the regulating part 8 to move in the up-down direction when the lid 4 is opened or closed. The recess 63d is located above the regulating part 8 when the first opening 23 is closed by the lid 4. The dimension of the recess 63d in the short direction is larger than the outer diameter of the regulating part 8. For example, when the lock part 61b of the first opening / closing mechanism 6A is released from the groove 63 to move the shaft 61 upward, the regulating part 8 does not interfere with the groove 63. That is, when the lock part 61b moves in the opening / closing direction of the lid 4, the regulating part 8 can pass through the recess 63d and the second opening 63c. Therefore, the regulating part 8 does not hinder the opening and closing of the lid 4.

[0053] In the cooler box 1 configured as described above, the operating body 62 is fixed to the shaft portion 61 and rotates integrally with the shaft portion 61 around the shaft portion 61. The locking portion 61b of the shaft portion 61 can take a locked position or an unlocked position in response to the rotation of the operating body 62. This makes it possible to open and close the lid body 4 by configuring the operating body 62, the shaft portion 61, and the locking portion 61b as a single part, for example. In addition, since the movement of the locking portion 61b is restricted by the second opening 63c, the locked state of the lid body 4 can be realized with a simple configuration. As a result, the lid body 4 can be opened and closed with respect to the box body 2 with a simple structure.

[0054] <Other embodiments> Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the gist of the invention.

[0055] In the embodiment described above, both of the pair of long sides 41 of the lid body 4 are separable from the box body 2, but one of the pair of long sides 41 of the lid body 4 may be configured to be inseparable from the box body 2. One of the first opening and closing mechanism 6A and the second opening and closing mechanism 6B may be configured, for example, as a hinge.

[0056] The pair of opening and closing mechanisms 6 may be disposed across the pair of short walls 22 of the box 2 and the pair of short sides 42 of the lid 4 .

[0057] The shape of the locking portion 61b and the shape of the groove portion 63 may be changed. The shape of the locking portion 61b may be any shape that can take a locked position and an unlocked position in response to a rotation operation of the operating body 62. The groove portion 63 may be formed integrally with the box body 2.

[0058] The operation body 62 and the shaft portion 61 may be separate bodies. The shaft portion 61 may be made of metal. The lock portion 61b may be separate from the shaft portion 61.

[0059] The support portion 43 of the lid body 4 may be formed across the outer lid 44 and the inner lid 45. The shaft portion 61 may be sandwiched between the outer lid 44 and the inner lid 45 to be rotatably supported by the lid body 4.

[0060] As shown in Figures 10 and 11, cooler box 1 may include a retaining mechanism 70. Retaining mechanism 70 is disposed on both ends of shaft body 61a of shaft portion 61 (see Figure 3). Retaining mechanism 70 has a storage portion 71, a first engagement portion 72, a second engagement portion 73, a pressing member 74, and a biasing member 75. Note that in Figure 3, the pressing member 74 and the biasing member 75 are omitted from illustration.

[0061] The accommodation portion 71 is disposed on either the cover 4 or the shaft portion 61, and opens toward the other of the cover 4 or the shaft portion 61. In the example shown in Figs. 10 and 11, the accommodation portion 71 is disposed on the cover 4, and opens toward the shaft main body 61a of the shaft portion 61. The accommodation portion 71 is formed in a cylindrical shape with a bottom. The accommodation portion 71 extends in the radial direction of the shaft portion 61.

[0062] The first engagement portion 72 and the second engagement portion 73 are disposed on the outer circumferential surface of either the cover body 4 or the shaft portion 61. In the example shown in Figs. 10 and 11, the first engagement portion 72 and the second engagement portion 73 are disposed on the outer circumferential surface of the shaft body 61a of the shaft portion 61. The first engagement portion 72 and the second engagement portion 73 have a shape that is recessed radially inward of the shaft portion 61 on the outer circumferential surface of the shaft body 61a. The second engagement portion 73 is separated from the first engagement portion 72 in the circumferential direction of the shaft portion 61. As a result, a convex portion 76 is formed between the first engagement portion 72 and the second engagement portion 73.

[0063] The pressing member 74 is disposed in the accommodation portion 71 so as to be movable toward either the cover body 4 or the shaft portion 61. In the example shown in Figs. 10 and 11, the pressing member 74 is accommodated in the accommodation portion 71 so as to be movable toward the shaft body 61a of the shaft portion 61. The pressing member 74 is, for example, a spherical member. As shown in Fig. 10, the pressing member 74 engages with the first engagement portion 72 when the operating body 62 is in the locked position (see Fig. 4). As shown in Fig. 11, the pressing member 74 engages with the second engagement portion 73 when the operating body 62 is in the unlocked position.

[0064] The biasing member 75 is disposed in the accommodation portion 71 and biases the pressing member 74 toward the shaft main body 61a of the shaft portion 61. The biasing member 75 is, for example, a coil spring. For example, when the operating body 62 is moved from the locked position to the unlocked position, the pressing member 74 is pressed by the convex portion 76 and retreats radially outward. Thereafter, the pressing member 74 rides over the convex portion 76 and engages with the second engagement portion 73.

[0065] Alternatively, the storage portion 71 may be disposed in the shaft portion 61, and the first engagement portion 72 and the second engagement portion 73 may be disposed in the lid body 4. In this case, the biasing member 75 biases the pressing member 74 toward the lid body 4. Alternatively, one of the first engagement portion 72 and the second engagement portion 73 may be omitted. The pressing member 74 and the biasing member 75 may be integrally formed of a synthetic resin or the like with different shapes. Furthermore, they may be integrally formed with the inner lid 45 or the shaft body 61a. [Explanation of symbols]

[0066] 1 Cooler 2 box body 23 First opening 24 Stopper part 4 Lid 46 Holding part 6A,6B Opening / closing mechanism 61 Shaft 61b Lock section 61c Circular surface 61d D-cut surface 62 Operation body 63 Groove 63c 2nd opening 8. Regulatory Department 70 Retention mechanism 71 Storage unit 72 First engagement part 73 Second engagement part 74 Pressing member 75 Pressing member

Claims

1. A box having a first opening; A cover that opens and closes the first opening; A shaft portion having a lock portion and rotatably supported by the lid body; An operation body that is fixed to the shaft portion and rotates integrally with the shaft portion around the shaft portion; a groove portion having a second opening portion opening in a direction intersecting with the shaft portion and fixed to the box body; Equipped with The lock portion is disposed in the groove portion, and can take a locked position in which movement in the intersecting direction is restricted by the second opening portion, and an unlocked position in which the lock portion can be released from the groove portion through the second opening portion, in response to an operation of the operating body. Cooler box.

2. The locking portion has a semicircular arc surface that engages with the groove portion. The cooler box according to claim 1.

3. The locking portion further has a D-cut surface. The cooler box according to claim 2.

4. The operation body is disposed on the upper surface of the lid body. The cooler box according to any one of claims 1 to 3.

5. The second opening is open in the same direction as the first opening. The cooler box according to any one of claims 1 to 3.

6. An opening and closing mechanism that rotates the lid body around the shaft portion is further provided, The lid body has a holding portion that is held by an outer circumferential surface of the groove portion when the lid body is opened around the shaft portion by the opening / closing mechanism. The cooler box according to any one of claims 1 to 3.

7. One of the box body and the lid body has a stopper portion that restricts rotation of the lid body when the lid body is opened around the shaft portion by the opening / closing mechanism. The cooler box according to claim 6.

8. The stopper portion is disposed on an outer circumferential surface of the groove portion and protrudes in a direction away from the lock portion. The cooler box according to claim 7.

9. an opening / closing mechanism that rotates the lid body around the shaft portion; a restricting portion that restricts the locking portion from being disengaged from the groove portion when the lid body is rotated around the shaft portion by the opening / closing mechanism, The restriction portion is movable between an engagement position where the restriction portion can engage with an outer circumferential surface of the groove portion and a non-engagement position where the restriction portion does not engage with the outer circumferential surface of the groove portion in response to rotation of the lid body. The cooler box according to any one of claims 1 to 3.

10. Further comprising a holding mechanism capable of holding the operation body, The holding mechanism includes: a storage section that is disposed on one of the lid body and the shaft portion and opens toward the other of the lid body and the shaft portion; a first engagement portion disposed on an outer circumferential surface of the other of the lid body and the shaft portion; a pressing member that is disposed in the accommodation portion so as to be movable toward or away from the other of the lid body and the shaft portion, and that engages with the first engagement portion when the operation body is in either a locked position corresponding to the locked posture or an unlocked position corresponding to the unlocked posture; a biasing member disposed in the housing portion and biasing the pressing member toward the shaft portion; having The cooler box according to any one of claims 1 to 3.

11. the holding mechanism further includes a second engaging portion disposed on an outer circumferential surface of the other of the lid body and the shaft portion at a position spaced apart from the first engaging portion in a circumferential direction of the shaft portion, the pressing member engages with the first engagement portion when the operation body is in the locked position, and engages with the second engagement portion when the operation body is in the unlocked position. The cooler box according to claim 10.

12. The housing portion is provided on the cover body, and the first engagement portion is provided on the shaft portion. The cooler box according to claim 10.

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